10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended

September 30, 2016

or

[  ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File No. 001-10253

TCF Financial Corporation

(Exact name of registrant as specified in its charter)

Delaware	41-1591444
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

200 Lake Street East

Wayzata, Minnesota 55391-1693

(Address and Zip Code of principal executive offices)

(952) 745-2760

(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes [X]                                                   No [  ]

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes [X]                                                   No [  ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	[X]	Accelerated filer	[ ]
Non-accelerated filer	[ ] (Do not check if smaller reporting company)	Smaller reporting company	[ ]

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes [   ]                                                  No [X]

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date.

	Outstanding at
Class	October 27, 2016
Common Stock, $.01 par value	170,998,862 shares

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

INDEX

Part I. Financial Information	Pages
Item 1. Financial Statements
Consolidated Statements of Financial Condition at September 30, 2016 and December 31, 2015	1
Consolidated Statements of Income for the Three and Nine Months Ended September 30, 2016 and 2015	2
Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2016 and 2015	3
Consolidated Statements of Equity for the Nine Months Ended September 30, 2016 and 2015	4
Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2016 and 2015	5
Notes to Consolidated Financial Statements	6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	38
Item 3. Quantitative and Qualitative Disclosures About Market Risk	60
Item 4. Controls and Procedures	61
Part II. Other Information
Items 1 - 6	62
Signatures	64
Index to Exhibits	65

Part I - Financial Information

Item 1. Financial Statements

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Financial Condition

(Dollars in thousands, except per-share data)	At September 30, 2016			At December 31, 2015
	(Unaudited)
Assets:
Cash and due from banks	$	656,481		$	889,337
Investments	59,707			70,537
Securities held to maturity	185,230			201,920
Securities available for sale	1,419,821			888,885
Loans and leases held for sale	386,673			157,625
Loans and leases:
Consumer real estate:
First mortgage lien	2,313,044			2,624,956
Junior lien	2,674,280			2,839,316
Total consumer real estate	4,987,324			5,464,272
Commercial	3,150,199			3,145,832
Leasing and equipment finance	4,236,224			4,012,248
Inventory finance	2,261,086			2,146,754
Auto finance	2,731,900			2,647,596
Other	17,886			19,297
Total loans and leases	17,384,619			17,435,999
Allowance for loan and lease losses	(155,841		)	(156,054		)
Net loans and leases	17,228,778			17,279,945
Premises and equipment, net	424,456			445,934
Goodwill	225,640			225,640
Other assets	497,370			529,786
Total assets	$	21,084,156		$	20,689,609
Liabilities and Equity:
Deposits:
Checking	$	5,830,057		$	5,690,559
Savings	4,670,281			4,717,457
Money market	2,450,576			2,408,180
Certificates of deposit	4,283,292			3,903,793
Total deposits	17,234,206			16,719,989
Short-term borrowings	1,514			5,381
Long-term borrowings	713,996			1,034,557
Total borrowings	715,510			1,039,938
Accrued expenses and other liabilities	682,060			622,765
Total liabilities	18,631,776			18,382,692
Equity:
Preferred stock, par value $0.01 per share, 30,000,000 shares authorized;
4,006,900 shares issued	263,240			263,240
Common stock, par value $0.01 per share, 280,000,000 shares authorized;
170,993,800 and 169,887,030 shares issued, respectively	1,710			1,699
Additional paid-in capital	860,487			851,836
Retained earnings, subject to certain restrictions	1,350,215			1,240,347
Accumulated other comprehensive income (loss)	6,895			(15,346		)
Treasury stock at cost, 42,566 shares, and other	(49,093		)	(50,860		)
Total TCF Financial Corporation stockholders' equity	2,433,454			2,290,916
Non-controlling interest in subsidiaries	18,926			16,001
Total equity	2,452,380			2,306,917
Total liabilities and equity	$	21,084,156		$	20,689,609

See accompanying notes to consolidated financial statements.

1

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Income

(Unaudited)

	Three Months Ended   September 30,						Nine Months Ended   September 30,
(In thousands, except per-share data)	2016			2015			2016			2015
Interest income:
Loans and leases	$	210,765		$	207,250		$	639,698		$	620,390
Securities available for sale	7,126			4,161			19,020			10,784
Securities held to maturity	1,049			1,361			3,484			4,150
Investments and other	13,786			10,832			36,870			31,155
Total interest income	232,726			223,604			699,072			666,479
Interest expense:
Deposits	15,851			12,302			46,735			34,454
Borrowings	4,857			6,032			15,677			17,306
Total interest expense	20,708			18,334			62,412			51,760
Net interest income	212,018			205,270			636,660			614,719
Provision for credit losses	13,894			10,018			45,986			35,337
Net interest income after provision for credit losses	198,124			195,252			590,674			579,382
Non-interest income:
Fees and service charges	35,093			36,991			102,532			107,258
Card revenue	13,747			13,803			41,193			40,606
ATM revenue	5,330			5,739			15,639			16,401
Subtotal	54,170			56,533			159,364			164,265
Gains on sales of auto loans, net	11,624			10,423			33,687			27,444
Gains on sales of consumer real estate loans, net	13,528			7,143			33,751			27,860
Servicing fee income	10,393			8,049			28,778			22,607
Subtotal	35,545			25,615			96,216			77,911
Leasing and equipment finance	28,289			27,165			87,850			75,774
Other	2,270			3,070			7,518			8,657
Fees and other revenue	120,274			112,383			350,948			326,607
Gains (losses) on securities, net	(600		)	(131		)	(716		)	(268		)
Total non-interest income	119,674			112,252			350,232			326,339
Non-interest expense:
Compensation and employee benefits	117,155			116,708			359,721			348,682
Occupancy and equipment	37,938			34,159			111,830			107,138
FDIC insurance	4,082			4,832			11,946			15,089
Advertising and marketing	5,488			5,793			17,053			17,466
Other	49,851			45,750			143,186			139,770
Subtotal	214,514			207,242			643,736			628,145
Operating lease depreciation	10,038			9,485			29,453			25,801
Foreclosed real estate and repossessed assets, net	4,243			5,680			11,298			18,253
Other credit costs, net	83			(123		)	41			(39		)
Total non-interest expense	228,878			222,284			684,528			672,160
Income before income tax expense	88,920			85,220			256,378			233,561
Income tax expense	30,257			30,528			86,766			82,258
Income after income tax expense	58,663			54,692			169,612			151,303
Income attributable to non-controlling interest	2,371			2,117			7,580			6,672
Net income attributable to TCF Financial Corporation	56,292			52,575			162,032			144,631
Preferred stock dividends	4,847			4,847			14,541			14,541
Net income available to common stockholders	$	51,445		$	47,728		$	147,491		$	130,090
Net income per common share:
Basic	$	0.31		$	0.29		$	0.88		$	0.79
Diluted	$	0.31		$	0.29		$	0.88		$	0.78

See accompanying notes to consolidated financial statements.

2

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended   September 30,
(In thousands)	2016			2015			2016			2015
Net income attributable to TCF Financial Corporation	$	56,292		$	52,575		$	162,032		$	144,631
Other comprehensive income (loss):
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	(7,624		)	9,972			32,639			2,971
Reclassification of net (gains) losses to net income	425			281			1,448			871
Net investment hedges:
Unrealized gains (losses) arising during the period	904			2,858			(2,691		)	5,772
Foreign currency translation adjustment:
Unrealized gains (losses) arising during the period	(957		)	(3,049		)	2,791			(6,318		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(12		)	(12		)	(35		)	(35		)
Income tax (expense) benefit	2,396			(4,947		)	(11,911		)	(3,618		)
Total other comprehensive income (loss)	(4,868		)	5,103			22,241			(357		)
Comprehensive income	$	51,424		$	57,678		$	184,273		$	144,274

See accompanying notes to consolidated financial statements.

3

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Equity

(Unaudited)

	TCF Financial Corporation
	Number of Shares Issued			Preferred Stock		Common Stock			Additional Paid-in Capital			Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Treasury Stock and Other			Total			Non- controlling Interests			Total Equity
(Dollars in thousands)	Preferred	Common
Balance, December 31, 2014	4,006,900	167,503,568		$	263,240	$	1,675		$	817,130		$	1,099,914		$	(10,910	)	$	(49,400	)	$	2,121,649		$	13,715		$	2,135,364
Net income	—	—		—		—			—			144,631			—			—			144,631			6,672			151,303
Other comprehensive income (loss)	—	—		—		—			—			—			(357		)	—			(357		)	—			(357		)
Net investment by (distribution to) non-controlling interest	—	—		—		—			—			—			—			—			—			(1,887		)	(1,887		)
Dividends on preferred stock	—	—		—		—			—			(14,541		)	—			—			(14,541		)	—			(14,541		)
Dividends on common stock	—	—		—		—			—			(24,825		)	—			—			(24,825		)	—			(24,825		)
Grants of restricted stock	—	753,054		—		8			(8		)	—			—			—			—			—			—
Common shares purchased by TCF employee benefit plans	—	1,219,012		—		12			19,261			—			—			—			19,273			—			19,273
Cancellation of shares of restricted stock	—	(133,822	)	—		(1		)	(540		)	—			—			—			(541		)	—			(541		)
Cancellation of common shares for tax withholding	—	(68,670	)	—		(1		)	(1,093		)	—			—			—			(1,094		)	—			(1,094		)
Net amortization of stock compensation	—	—		—		—			7,520			—			—			—			7,520			—			7,520
Exercise of stock options	—	200,000		—		2			2,568			—			—			—			2,570			—			2,570
Stock compensation tax (expense) benefit	—	—		—		—			362			—			—			—			362			—			362
Change in shares held in trust for deferred compensation plans, at cost	—	—		—		—			1,043			—			—			(1,043		)	—			—			—
Balance, September 30, 2015	4,006,900	169,473,142		$	263,240	$	1,695		$	846,243		$	1,205,179		$	(11,267	)	$	(50,443	)	$	2,254,647		$	18,500		$	2,273,147
Balance, December 31, 2015	4,006,900	169,887,030		$	263,240	$	1,699		$	851,836		$	1,240,347		$	(15,346	)	$	(50,860	)	$	2,290,916		$	16,001		$	2,306,917
Net income	—	—		—		—			—			162,032			—			—			162,032			7,580			169,612
Other comprehensive income (loss)	—	—		—		—			—			—			22,241			—			22,241			—			22,241
Net investment by (distribution to) non-controlling interest	—	—		—		—			—			—			—			—			—			(4,655		)	(4,655		)
Dividends on preferred stock	—	—		—		—			—			(14,541		)	—			—			(14,541		)	—			(14,541		)
Dividends on common stock	—	—		—		—			—			(37,623		)	—			—			(37,623		)	—			(37,623		)
Grants of restricted stock	—	880,017		—		9			(9		)	—			—			—			—			—			—
Common shares purchased by TCF employee benefit plans	—	511,420		—		5			5,833			—			—			—			5,838			—			5,838
Cancellation of shares of restricted stock	—	(205,483	)	—		(2		)	(1,187		)	—			—			—			(1,189		)	—			(1,189		)
Cancellation of common shares for tax withholding	—	(129,355	)	—		(1		)	(1,638		)	—			—			—			(1,639		)	—			(1,639		)
Net amortization of stock compensation	—	—		—		—			8,443			—			—			—			8,443			—			8,443
Exercise of stock options	—	50,171		—		—			(684		)	—			—			—			(684		)	—			(684		)
Stock compensation tax (expense) benefit	—	—		—		—			(340		)	—			—			—			(340		)	—			(340		)
Change in shares held in trust for deferred compensation plans, at cost	—	—		—		—			(1,767		)	—			—			1,767			—			—			—
Balance, September 30, 2016	4,006,900	170,993,800		$	263,240	$	1,710		$	860,487		$	1,350,215		$	6,895		$	(49,093	)	$	2,433,454		$	18,926		$	2,452,380

See accompanying notes to consolidated financial statements.

4

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows

(Unaudited)

	Nine Months Ended September 30,
(In thousands)	2016			2015
Cash flows from operating activities:
Net income attributable to TCF Financial Corporation	$	162,032		$	144,631
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	45,986			35,337
Depreciation and amortization	135,103			111,284
Proceeds from sales of loans and leases held for sale	867,669			751,200
Gains on sales of assets, net	(75,660		)	(62,256		)
Net income attributable to non-controlling interest	7,580			6,672
Originations of loans and leases held for sale, net of repayments	(904,503		)	(704,018		)
Net change in other assets and accrued expenses and other liabilities	107,742			72,747
Other, net	(21,562		)	(22,915		)
Net cash provided by (used in) operating activities	324,387			332,682
Cash flows from investing activities:
Loan and lease originations and purchases, net of principal collected on loans and leases	(1,358,906		)	(1,529,968		)
Purchases of equipment for lease financing	(840,650		)	(752,536		)
Proceeds from sales of loans and lease receivables	1,926,290			1,318,995
Proceeds from sales of lease equipment	11,348			6,677
Proceeds from sales of securities	—			177
Purchases of securities	(584,524		)	(377,432		)
Proceeds from maturities of and principal collected on securities	101,166			70,485
Purchases of Federal Home Loan Bank stock	(92,080		)	(107,000		)
Redemption of Federal Home Loan Bank stock	102,966			116,004
Proceeds from sales of real estate owned	53,045			51,017
Purchases of premises and equipment	(22,192		)	(38,455		)
Other, net	16,937			17,669
Net cash provided by (used in) investing activities	(686,600		)	(1,224,367		)
Cash flows from financing activities:
Net change in deposits	514,217			599,238
Net change in short-term borrowings	(4,084		)	32,298
Proceeds from long-term borrowings	3,241,585			3,656,133
Payments on long-term borrowings	(3,570,356		)	(3,706,122		)
Net investment by (distribution to) non-controlling interest	(4,655		)	(1,887		)
Dividends paid on preferred stock	(14,541		)	(14,541		)
Dividends paid on common stock	(37,623		)	(24,825		)
Stock compensation tax (expense) benefit	(340		)	362
Common shares sold to TCF employee benefit plans	5,838			19,273
Exercise of stock options	(684		)	2,570
Net cash provided by (used in) financing activities	129,357			562,499
Net change in cash and due from banks	(232,856		)	(329,186		)
Cash and due from banks at beginning of period	889,337			1,115,250
Cash and due from banks at end of period	$	656,481		$	786,064
Supplemental disclosures of cash flow information:
Cash paid (received) for:
Interest on deposits and borrowings	$	59,753		$	46,881
Income taxes, net	(12,235		)	43,119
Transfer of loans to other assets	76,417			80,233

See accompanying notes to consolidated financial statements.

5

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Notes to Consolidated Financial Statements

(Unaudited)

Note 1. Basis of Presentation

TCF Financial Corporation (together with its direct and indirect subsidiaries, "we," "us," "our," "TCF" or the "Company"), a Delaware corporation, is a national bank holding company based in Wayzata, Minnesota. References herein to "TCF Financial" or the "Holding Company" refer to TCF Financial Corporation on an unconsolidated basis. TCF's principal subsidiary, TCF National Bank ("TCF Bank"), is headquartered in Sioux Falls, South Dakota.

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, therefore do not include all of the information and notes necessary for complete financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"). The information in this Quarterly Report on Form 10-Q is written with the presumption that the users of the interim financial statements have read or have access to the Company's most recent Annual Report on Form 10-K, which contains the latest audited financial statements and notes thereto, together with Management's Discussion and Analysis of Financial Condition and Results of Operations at December 31, 2015, and for the year then ended. All significant intercompany accounts and transactions have been eliminated in consolidation. Accounting policies in effect at December 31, 2015 remain significantly unchanged and have been followed similarly as in previous periods.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited consolidated financial statements contain all the significant adjustments, consisting of normal recurring items, considered necessary for fair presentation. The results of operations for interim periods are not necessarily indicative of the results to be expected for the entire year.

Effective January 1, 2016, the Company retrospectively adopted Accounting Standards Update ("ASU") No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which required that debt issuance costs be presented as a direct deduction from debt. Accordingly, the Company reclassified unamortized debt issuance costs of $2.1 million from Other assets to a reduction in Long-term borrowings on the Consolidated Statement of Financial Condition as of December 31, 2015. The adoption of this ASU did not impact results of operations, retained earnings or cash flows.

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented in these financial statements. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Previously, the Company's reportable segments were Lending, Funding and Support Services. The reportable segments follow GAAP as described in Note 1, Summary of Significant Accounting Policies, in Item 8 of TCF's 2015 Annual Report on Form 10-K, except for the accounting for intercompany interest income and interest expense, which are eliminated in consolidation, and presenting net interest income on a fully tax-equivalent basis. See Note 16, Business Segments for a description of the new segments.

6

Note 2.  Cash and Due from Banks

At September 30, 2016 and December 31, 2015, TCF Bank was required by Federal Reserve regulations to maintain reserves of $103.8 million and $101.6 million, respectively, in cash on hand or at the Federal Reserve Bank.

TCF maintains cash balances that are restricted as to their use in accordance with certain contractual agreements primarily related to the sale and servicing of auto loans. Cash payments received on loans serviced for third parties are generally held in separate accounts until remitted. TCF may also retain cash balances for collateral on certain borrowings, forward foreign exchange contracts, interest rate contracts and other contracts. TCF maintained restricted cash totaling $51.2 million and $58.3 million at September 30, 2016 and December 31, 2015, respectively.

TCF had cash held in interest-bearing accounts of $398.0 million and $609.5 million at September 30, 2016 and December 31, 2015, respectively.

Note 3.  Securities Available for Sale and Securities Held to Maturity

Securities consisted of the following:

	At September 30, 2016								At December 31, 2015
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	791,208	$	14,120	$	53	$	805,275	$	627,521	$	655	$	6,246	$	621,930
Other	22		—		—		22		34		—		—		34
Obligations of states and political subdivisions	597,594		17,573		643		614,524		262,189		4,732		—		266,921
Total securities available for sale	$	1,388,824	$	31,693	$	696	$	1,419,821	$	889,744	$	5,387	$	6,246	$	888,885
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	181,558	$	12,158	$	32	$	193,684	$	197,410	$	5,247	$	214	$	202,443
Other	872		—		—		872		1,110		—		—		1,110
Other securities	2,800		—		—		2,800		3,400		—		—		3,400
Total securities held to maturity	$	185,230	$	12,158	$	32	$	197,356	$	201,920	$	5,247	$	214	$	206,953

There were no sales of securities available for sale during the third quarter and first nine months of 2016. During the third quarter and first nine months of 2015, TCF sold $0.2 million of securities available for sale and received cash proceeds of $0.2 million. At September 30, 2016 and December 31, 2015, mortgage-backed securities with a carrying value of $8.5 million and $17.1 million, respectively, were pledged as collateral to secure certain deposits and borrowings. There were no impairment charges recognized on securities available for sale during the third quarter and first nine months of 2016 and 2015. Unrealized losses on securities available for sale are due to changes in interest rates. TCF has the ability and intent to hold these investments until a recovery of fair value occurs.

TCF recorded $0.6 million and $0.7 millionof impairment charges for the third quarter and first nine months of 2016, respectively, on securities held to maturity compared with $0.2 million and $0.3 million for the same periods in 2015.

7

The following tables show the gross unrealized losses and fair value of securities available for sale and securities held to maturity at September 30, 2016 and December 31, 2015, aggregated by investment category and the length of time the securities were in a continuous loss position:

	At September 30, 2016
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	32,870	$	53	$	—	$	—	$	32,870	$	53
Obligations of states and political subdivisions	74,474		643		—		—		74,474		643
Total securities available for sale	$	107,344	$	696	$	—	$	—	$	107,344	$	696
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	1,964	$	32	$	—	$	—	$	1,964	$	32
Total securities held to maturity	$	1,964	$	32	$	—	$	—	$	1,964	$	32

	At December 31, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Total securities available for sale	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214
Total securities held to maturity	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214

8

The amortized cost and fair value of securities available for sale and securities held to maturity by final contractual maturity at September 30, 2016 and December 31, 2015 are shown below. The remaining contractual principal maturities do not consider possible prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay.

	At September 30, 2016				At December 31, 2015
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Securities available for sale:
Due in one year or less	$	1	$	1	$	1	$	1
Due in 1-5 years	22		22		38		38
Due in 5-10 years	307,812		320,329		268,638		272,511
Due after 10 years	1,080,989		1,099,469		621,067		616,335
Total securities available for sale	$	1,388,824	$	1,419,821	$	889,744	$	888,885
Securities held to maturity:
Due in one year or less	$	—	$	—	$	100	$	100
Due in 1-5 years	1,200		1,200		1,900		1,900
Due in 5-10 years	1,600		1,600		1,400		1,400
Due after 10 years	182,430		194,556		198,520		203,553
Total securities held to maturity	$	185,230	$	197,356	$	201,920	$	206,953

Note 4.  Loans and Leases

Loans and leases consisted of the following:

(Dollars in thousands)	At September 30, 2016		At December 31, 2015		Percent Change
Consumer real estate:
First mortgage lien	$	2,313,044	$	2,624,956	(11.9	)%
Junior lien	2,674,280		2,839,316		(5.8	)
Total consumer real estate	4,987,324		5,464,272		(8.7	)
Commercial:
Commercial real estate:
Permanent	2,214,685		2,267,218		(2.3	)
Construction and development	301,363		326,211		(7.6	)
Total commercial real estate	2,516,048		2,593,429		(3.0	)
Commercial business	634,151		552,403		14.8
Total commercial	3,150,199		3,145,832		0.1
Leasing and equipment finance	4,236,224		4,012,248		5.6
Inventory finance	2,261,086		2,146,754		5.3
Auto finance	2,731,900		2,647,596		3.2
Other	17,886		19,297		(7.3	)
Total loans and leases(1)	$	17,384,619	$	17,435,999	(0.3	)

(1) Loans and leases are reported at historical cost including net direct fees and costs associated with originating and acquiring loans and leases, lease residuals, unearned income and unamortized purchase premiums and discounts. The aggregate amount of these loan and lease adjustments was $62.5 million and $73.7 million at September 30, 2016 and December 31, 2015, respectively.

The consumer real estate junior lien portfolio was comprised of $2.4 billion of home equity lines of credit ("HELOCs") and $292.2 million of amortizing consumer real estate junior lien mortgage loans at September 30, 2016, compared with $2.5 billion and $345.3 million at December 31, 2015, respectively. At both September 30, 2016 and December 31, 2015, $1.8 billion of the consumer real estate junior lien HELOCs had a 10-year interest-only draw period and a 20-year amortization repayment period and all were within the 10-year interest-only draw period and will not convert to amortizing loans until the year 2021 or later. At September 30, 2016 and December 31, 2015, $561.4 million and $664.5 million, respectively, of the consumer real estate junior lien HELOCs were interest-only revolving draw loans with no defined amortization period and original draw periods of 5 to 40 years. As of September 30, 2016, 18.2% of these loans mature prior to the year 2021.

9

The following table summarizes the carrying value of consumer real estate loans and consumer auto loans sold with servicing retained, cash received, securitization receivable recorded, interest-only strips received and recognized net gains for the three and nine months ended September 30, 2016 and 2015. No servicing assets or liabilities related to consumer real estate or consumer auto loans were recorded within TCF's Consolidated Statements of Financial Condition, as the contractual servicing fees are adequate to compensate TCF for its servicing responsibilities based on the amount demanded by the marketplace.

	Three Months Ended September 30,													Nine Months Ended September 30,
(In thousands)	2016						2015							2016						2015
	Consumer Real Estate Loans			Consumer Auto Loans				Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans
Sales proceeds, net(1)	$	450,666		$	631,511			$	250,994		$	452,249		$	1,129,251		$	1,614,213		$	898,387		$	1,113,036
Recorded investment in loans sold, including accrued interest	(438,900		)	(619,324		)		(246,793		)	(441,477		)	(1,107,327		)	(1,603,413		)	(878,468		)	(1,084,348		)
Securitization receivable	—			—				—			—			—			18,620			—			—
Interest-only strips, initial value	2,513			—				2,711			—			13,426			5,695			6,948			—
Net gains(2)	$	14,279		$	12,187			$	6,912		$	10,772		$	35,350		$	35,115		$	26,867		$	28,688

(1) Includes transaction fees and other sales related costs.

(2) Excludes subsequent adjustments and valuation adjustments while held for sale.

TCF has two consumer real estate loan sale programs; one that sells nationally originated consumer real estate junior lien loans and the other that originates first mortgage lien loans in our primary banking markets and sells the loans through a correspondent relationship. Included in the consumer real estate recognized net gains for the third quarter and first nine months of 2016 were $2.1 million and $5.7 million, respectively, on the recorded investments of $95.9 million and $257.5 million, respectively, in first mortgage lien loans sold related to the correspondent lending program, including accrued interest. Included in the consumer real estate recognized net gains for the third quarter and first nine months of 2015 were $1.7 million and $4.7 million, respectively, on the recorded investments of $76.7 million and $212.9 million, respectively, in first mortgage lien loans sold related to the correspondent lending program, including accrued interest.

Included in the consumer auto loans sold in the table above are amounts related to the completion of securitizations. During the third quarter and first nine months of 2016, TCF transferred the recorded investment of $519.3 million and $933.6 million, respectively, in consumer auto loans, including accrued interest, with servicing retained, to trusts in securitization transactions, received net sales proceeds of $525.7 million and $926.0 million, respectively, recorded a securitization receivable of $18.6 million in the first nine months of 2016 and recognized net gains of $6.4 million and $11.0 million, respectively, which qualified for sale accounting. During the third quarter and first nine monthsof2015, TCF transferred the recorded investment of $441.5 million and $880.8 million, respectively, in consumer auto loans, including accrued interest, with servicing retained, to trusts in securitization transactions, received net sales proceeds of $452.2 million and $902.8 million, respectively, and recognized net gains of $10.8 million and $22.0 million, respectively, which qualified for sale accounting. These trusts are considered variable interest entities due to their limited capitalization and special purpose nature. TCF has concluded it is not the primary beneficiary of the trusts and they are not consolidated.

Total interest-only strips and the contractual liabilities related to loan sales are shown below.

(In thousands)	At September 30, 2016		At December 31, 2015
Interest-only strips attributable to:
Consumer real estate loan sales	$	27,238	$	19,182
Consumer auto loan sales	15,907		25,150
Contractual liabilities attributable to:
Consumer real estate loan sales	$	772	$	702
Consumer auto loan sales	173		185

TCF recorded $0.2 million and $0.8 million of impairment charges on consumer real estate loan interest-only strips for the third quarter and first nine months of 2016, respectively, compared with none for the same periods in 2015. TCF recorded $2.3 million of impairment charges on consumer auto loan interest-only strips for both the third quarter and first nine months of 2016, compared with $0.4 million and $0.9 million for the same periods in 2015.

10

TCF's agreements to sell auto and consumer real estate loans typically contain certain representations and warranties regarding the loans sold. These representations and warranties generally relate to, among other things, the ownership of the loan, the validity, priority and perfection of the lien securing the loan, accuracy of information supplied to the buyer, the loan's compliance with the criteria set forth in the agreement, payment delinquency and compliance with applicable laws and regulations. TCF may be required to repurchase loans in the event of an unremedied breach of these representations or warranties. During the nine months ended September 30, 2016 and 2015, losses related to repurchases pursuant to such representations and warranties were immaterial. The majority of such repurchases were of consumer auto loans where TCF typically has contractual agreements with the automobile dealerships that originated the loans requiring the dealers to repurchase such contracts from TCF.

Note 5.  Allowance for Loan and Lease Losses and Credit Quality Information

The following tables provide the allowance for loan and lease losses and other related information. TCF's key credit quality indicator is the receivable's payment performance status, defined as accruing or non-accruing.

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	64,765		$	31,161		$	20,124		$	12,084		$	29,772		$	666		$	158,572
Charge-offs	(4,058		)	(4		)	(2,513		)	(697		)	(6,756		)	(2,216		)	(16,244		)
Recoveries	1,838			80			671			129			999			1,062			4,779
Net (charge-offs) recoveries	(2,220		)	76			(1,842		)	(568		)	(5,757		)	(1,154		)	(11,465		)
Provision for credit losses	1,402			411			2,367			335			8,361			1,018			13,894
Other	(1,855		)	—			—			(44		)	(3,261		)	—			(5,160		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	74,687		$	30,205		$	17,669		$	10,879		$	22,061		$	614		$	156,115
Charge-offs	(6,310		)	(487		)	(1,583		)	(463		)	(4,594		)	(1,901		)	(15,338		)
Recoveries	1,832			514			702			319			915			1,115			5,397
Net (charge-offs) recoveries	(4,478		)	27			(881		)	(144		)	(3,679		)	(786		)	(9,941		)
Provision for credit losses	780			(226		)	1,389			546			6,750			779			10,018
Other	(660		)	—			—			(160		)	(1,410		)	—			(2,230		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

11

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	67,992		$	30,185		$	19,018		$	11,128		$	26,486		$	1,245		$	156,054
Charge-offs	(14,550		)	(668		)	(6,125		)	(2,084		)	(18,683		)	(5,524		)	(47,634		)
Recoveries	5,094			330			1,834			696			2,743			3,435			14,132
Net (charge-offs) recoveries	(9,456		)	(338		)	(4,291		)	(1,388		)	(15,940		)	(2,089		)	(33,502		)
Provision for credit losses	8,963			1,801			5,922			1,925			26,001			1,374			45,986
Other	(5,407		)	—			—			142			(7,432		)	—			(12,697		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	85,361		$	31,367		$	18,446		$	10,020		$	18,230		$	745		$	164,169
Charge-offs	(27,074		)	(3,944		)	(5,447		)	(1,812		)	(12,943		)	(5,226		)	(56,446		)
Recoveries	5,626			2,878			2,205			626			2,253			3,902			17,490
Net (charge-offs) recoveries	(21,448		)	(1,066		)	(3,242		)	(1,186		)	(10,690		)	(1,324		)	(38,956		)
Provision for credit losses	8,660			(295		)	2,973			2,627			20,186			1,186			35,337
Other	(2,244		)	—			—			(340		)	(4,004		)	—			(6,588		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

The following tables provide information regarding the allowance for loan and lease losses and balances by type of allowance methodology:

	At September 30, 2016
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment Finance		Inventory Finance		Auto Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	37,035	$	31,516	$	18,447	$	11,582	$	27,723	$	528	$	126,831
Individually evaluated for impairment	25,057		132		2,202		225		1,392		2		29,010
Total	$	62,092	$	31,648	$	20,649	$	11,807	$	29,115	$	530	$	155,841
Loans and leases outstanding:
Collectively evaluated for impairment	$	4,779,921	$	3,101,536	$	4,219,280	$	2,259,513	$	2,722,343	$	17,878	$	17,100,471
Individually evaluated for impairment	207,403		48,663		16,924		1,573		9,556		8		284,127
Loans acquired with deteriorated credit quality	—		—		20		—		1		—		21
Total	$	4,987,324	$	3,150,199	$	4,236,224	$	2,261,086	$	2,731,900	$	17,886	$	17,384,619

	At December 31, 2015
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment  Finance		Inventory  Finance		Auto  Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	38,819	$	30,170	$	16,994	$	10,929	$	23,471	$	1,243	$	121,626
Individually evaluated for impairment	29,173		15		2,024		199		3,015		2		34,428
Total	$	67,992	$	30,185	$	19,018	$	11,128	$	26,486	$	1,245	$	156,054
Loans and leases outstanding:
Collectively evaluated for impairment	$	5,248,829	$	3,092,398	$	3,997,544	$	2,145,605	$	2,637,269	$	19,286	$	17,140,931
Individually evaluated for impairment	215,443		53,434		14,669		1,149		10,308		11		295,014
Loans acquired with deteriorated credit quality	—		—		35		—		19		—		54
Total	$	5,464,272	$	3,145,832	$	4,012,248	$	2,146,754	$	2,647,596	$	19,297	$	17,435,999

12

Accruing and Non-accrual Loans and Leases  The following tables set forth information regarding TCF's accruing and non-accrual loans and leases. Non-accrual loans and leases are those which management believes have a higher risk of loss. Delinquent balances are determined based on the contractual terms of the loan or lease.

	At September 30, 2016
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,191,920	$	6,546	$	1,339	$	2,199,805	$	113,239	$	2,313,044
Junior lien	2,627,405		696		—		2,628,101		46,179		2,674,280
Total consumer real estate	4,819,325		7,242		1,339		4,827,906		159,418		4,987,324
Commercial:
Commercial real estate	2,510,197		258		—		2,510,455		5,593		2,516,048
Commercial business	630,562		—		—		630,562		3,589		634,151
Total commercial	3,140,759		258		—		3,141,017		9,182		3,150,199
Leasing and equipment finance	4,217,716		4,902		1,184		4,223,802		12,288		4,236,090
Inventory finance	2,259,303		175		35		2,259,513		1,573		2,261,086
Auto finance	2,718,904		3,471		1,944		2,724,319		7,581		2,731,900
Other	17,873		5		3		17,881		5		17,886
Subtotal	17,173,880		16,053		4,505		17,194,438		190,047		17,384,485
Portfolios acquired with deteriorated credit quality	130		4		—		134		—		134
Total	$	17,174,010	$	16,057	$	4,505	$	17,194,572	$	190,047	$	17,384,619

	At December 31, 2015
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,489,235	$	8,649	$	2,916	$	2,500,800	$	124,156	$	2,624,956
Junior lien	2,793,684		1,481		38		2,795,203		44,113		2,839,316
Total consumer real estate	5,282,919		10,130		2,954		5,296,003		168,269		5,464,272
Commercial:
Commercial real estate	2,586,692		—		—		2,586,692		6,737		2,593,429
Commercial business	548,814		1		—		548,815		3,588		552,403
Total commercial	3,135,506		1		—		3,135,507		10,325		3,145,832
Leasing and equipment finance	3,998,469		1,728		564		4,000,761		11,262		4,012,023
Inventory finance	2,145,538		87		31		2,145,656		1,098		2,146,754
Auto finance	2,634,496		2,343		1,230		2,638,069		9,509		2,647,578
Other	19,274		13		7		19,294		3		19,297
Subtotal	17,216,202		14,302		4,786		17,235,290		200,466		17,435,756
Portfolios acquired with deteriorated credit quality	242		1		—		243		—		243
Total	$	17,216,444	$	14,303	$	4,786	$	17,235,533	$	200,466	$	17,435,999

The following table provides interest income recognized on loans and leases in non-accrual status and contractual interest that would have been recorded had the loans and leases performed in accordance with their original contractual terms:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
(In thousands)	2016		2015		2016		2015
Contractual interest due on non-accrual loans and leases	$	5,127	$	5,428	$	15,604	$	15,992
Interest income recognized on non-accrual loans and leases	1,048		1,021		3,097		3,319
Unrecognized interest income	$	4,079	$	4,407	$	12,507	$	12,673

13

The following table provides information regarding consumer real estate loans to customers currently involved in ongoing Chapter 7 or Chapter 13 bankruptcy proceedings which have not yet been discharged, dismissed or completed: 

(In thousands)	At September 30, 2016		At December 31, 2015
Consumer real estate loans to customers in bankruptcy:
0-59 days delinquent and accruing	$	15,273	$	26,020
Non-accrual	23,493		20,264
Total consumer real estate loans to customers in bankruptcy	$	38,766	$	46,284

Loan Modifications for Borrowers with Financial Difficulties  Included within loans and leases in the previous tables are certain loans that have been modified in order to maximize collection of loan balances. If, for economic or legal reasons related to the customer's financial difficulties, TCF grants a concession, the modified loan is classified as a troubled debt restructuring ("TDR") loan. All loans classified as TDR loans are considered to be impaired. TDR loans consist primarily of consumer real estate and commercial loans.

Total TDR loans at September 30, 2016 and December 31, 2015 were $218.0 million and $230.6 million, respectively, of which $129.7 million and $135.3 million, respectively, were accruing. TCF held consumer real estate TDR loans of $177.7 million and $185.8 million at September 30, 2016 and December 31, 2015, respectively, of which $101.9 million and $106.8 million, respectively, were accruing. TCF also held $26.9 million and $31.7 million of commercial TDR loans at September 30, 2016 and December 31, 2015, respectively, of which $21.5 million and $24.7 million, respectively, were accruing. TDR loans for the remaining classes of finance receivables were not material at September 30, 2016 or December 31, 2015.

Unfunded commitments to consumer real estate and commercial loans classified as TDRs were $0.4 million at both September 30, 2016 and December 31, 2015. At September 30, 2016 and December 31, 2015, no additional funds were committed to leasing and equipment finance, inventory finance or auto finance loans classified as TDRs.

When a loan is modified as a TDR, principal balances are generally not forgiven. Loan modifications to troubled borrowers are not reported as TDR loans in the calendar years after modification if the loans were modified to an interest rate equal to or greater than the yields of new loan originations with comparable risk at the time of restructuring and if the loan is performing based on the restructured terms; however, these loans are still considered impaired and follow TCF's impaired loan reserve policies. During the nine months ended September 30, 2016 and 2015, $0.1 million and $9.0 million, respectively, of commercial loans were removed from TDR status as they were restructured at market terms and were performing.

Unrecognized interest represents the difference between interest income recognized on accruing TDR loans and the contractual interest that would have been recorded under the original contractual terms. For the three months ended September 30, 2016, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $0.5 million and $0.2 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.3%, which compares to the original contractual average rate of 6.7%. For the three months ended September 30, 2015, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $0.5 million and $0.2 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.1%, which compares to the original contractual average rate of 6.8%. The unrecognized interest income for the remaining classes of finance receivables was not material for the three months ended September 30, 2016 and 2015.

For the nine months ended September 30, 2016, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $1.5 million and $0.5 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.2%, which compares to the original contractual average rate of 6.7%. For the nine months ended September 30, 2015, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $1.6 million and $0.6 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.0%, which compares to the original contractual average rate of 6.7%. The unrecognized interest income for the remaining classes of finance receivables was not material for the nine months ended September 30, 2016 and 2015.

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The table below summarizes TDR loans that defaulted during the three and nine months ended September 30, 2016 and 2015, which were modified during the respective reporting period or within one year of the beginning of the respective reporting period. TCF considers a loan to have defaulted when under the modified terms it becomes 90 or more days delinquent, has been transferred to non-accrual status, has been charged down or has been transferred to other real estate owned or repossessed and returned assets.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2016		2015		2016		2015
Loan balance:(1)
Consumer real estate:
First mortgage lien	$	2,150	$	158	$	6,635	$	1,456
Junior lien	179		248		676		799
Total consumer real estate	2,329		406		7,311		2,255
Auto finance	334		282		1,233		676
Defaulted TDR loans modified during the applicable period	$	2,663	$	688	$	8,544	$	2,931

(1) The loan balances presented are not materially different than the pre-modification loan balances as TCF's loan modifications generally do not forgive principal amounts.

Consumer real estate TDR loans are evaluated separately in TCF's allowance methodology. Impairment is generally based upon the present value of the expected future cash flows discounted at the loan's initial effective interest rate, unless the loans are collateral dependent, in which case loan impairment is based upon the fair value of the collateral less selling expenses. The allowance on accruing consumer real estate TDR loans was $20.2 million, or 19.8% of the outstanding balance, at September 30, 2016, and $22.4 million, or 21.0% of the outstanding balance, at December 31, 2015. In determining impairment for consumer real estate accruing TDR loans, TCF utilized assumed remaining re-default rates ranging from 9% to 33% in 2016 and 10% to 33% in 2015, depending on modification type and actual experience. At September 30, 2016, 1.1% of accruing consumer real estate TDR loans were more than 60 days delinquent, compared with 2.0% at December 31, 2015.

Consumer real estate TDR loans generally remain on accruing status following modification if they are less than 90 days past due and payment in full under the modified terms of the loan is expected based on a current credit evaluation and historical payment performance. Of the non-accrual TDR balance at September 30, 2016, $51.2 million, or 67.6%, were loans discharged in Chapter 7 bankruptcy that were not reaffirmed by the borrower, of which 76.3% were current. Of the non-accrual TDR balance at December 31, 2015, $51.5 million, or 65.1%, were loans discharged in Chapter 7 bankruptcy that were not reaffirmed, of which 77.2% were current. All eligible loans are re-aged to current delinquency status upon modification.

Commercial TDR loans are individually evaluated for impairment based upon the present value of the expected future cash flows discounted at the loan's initial effective interest rate, unless the loans are collateral dependent, in which case impairment is based upon the fair value of collateral less estimated selling costs; however if payment or satisfaction of the loan is dependent on the operation, rather than the sale of the collateral, the impairment does not include selling costs. The allowance on accruing commercial TDR loans was less than $0.1 million, or 0.1% of the outstanding balance, at both September 30, 2016 and December 31, 2015. No accruing commercial TDR loans were 60 days or more delinquent at September 30, 2016 and December 31, 2015.

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Impaired Loans  TCF considers impaired loans to include non-accrual commercial loans, non-accrual equipment finance loans and non-accrual inventory finance loans, as well as all TDR loans. Non-accrual impaired loans, including non-accrual TDR loans, are included in non-accrual loans and leases within the previous tables. Accruing TDR loans have been disclosed by delinquency status within the previous tables of accruing and non-accrual loans and leases. In the following tables, the loan balance of impaired loans represents the amount recorded within loans and leases on the Consolidated Statements of Financial Condition, whereas the unpaid contractual balance represents the balances legally owed by the borrowers.

The following table summarizes impaired loans:

	At September 30, 2016						At December 31, 2015
(In thousands)	Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded		Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	128,615	$	108,903	$	17,899	$	145,749	$	123,728	$	20,880
Junior lien	64,977		53,281		6,232		70,122		58,366		6,837
Total consumer real estate	193,592		162,184		24,131		215,871		182,094		27,717
Commercial:
Commercial real estate	12,762		12,762		129		298		298		12
Commercial business	14		14		3		16		16		3
Total commercial	12,776		12,776		132		314		314		15
Leasing and equipment finance	10,670		10,670		1,356		7,259		7,259		822
Inventory finance	1,179		1,185		225		867		873		199
Auto finance	6,052		5,705		1,327		8,275		8,062		2,942
Other	7		8		2		21		11		2
Total impaired loans with an allowance recorded	224,276		192,528		27,173		232,607		198,613		31,697
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	18,853		13,331		—		7,100		3,228		—
Junior lien	27,369		2,217		—		26,031		520		—
Total consumer real estate	46,222		15,548		—		33,131		3,748		—
Commercial:
Commercial real estate	20,039		14,301		—		37,598		31,157		—
Commercial business	4,041		3,589		—		3,738		3,585		—
Total commercial	24,080		17,890		—		41,336		34,742		—
Inventory finance	385		388		—		274		276		—
Auto finance	3,708		2,336		—		2,003		1,177		—
Other	85		—		—		2		—		—
Total impaired loans without an allowance recorded	74,480		36,162		—		76,746		39,943		—
Total impaired loans	$	298,756	$	228,690	$	27,173	$	309,353	$	238,556	$	31,697

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The average loan balance of impaired loans and interest income recognized on impaired loans during the three and nine months ended September 30, 2016 and 2015 are included within the table below.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2016				2015				2016				2015
(In thousands)	Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	114,966	$	944	$	126,426	$	1,513	$	116,315	$	2,762	$	113,365	$	3,971
Junior lien	54,651		675		60,298		906		55,824		1,993		57,387		2,446
Total consumer real estate	169,617		1,619		186,724		2,419		172,139		4,755		170,752		6,417
Commercial:
Commercial real estate	12,926		100		19,183		174		6,530		230		36,143		777
Commercial business	15		—		18		—		15		—		17		—
Total commercial	12,941		100		19,201		174		6,545		230		36,160		777
Leasing and equipment finance	10,844		3		6,084		8		8,963		21		7,123		16
Inventory finance	777		10		1,869		17		1,030		41		1,529		66
Auto finance	5,871		33		5,309		8		6,883		72		4,557		8
Other	8		—		17		1		10		—		53		2
Total impaired loans with an allowance recorded	200,058		1,765		219,204		2,627		195,570		5,119		220,174		7,286
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	8,023		120		5,633		138		8,280		228		20,422		919
Junior lien	1,348		170		286		408		1,368		485		3,975		1,403
Total consumer real estate	9,371		290		5,919		546		9,648		713		24,397		2,322
Commercial:
Commercial real estate	15,101		170		37,109		507		22,729		606		41,988		1,674
Commercial business	3,869		—		2,014		—		3,587		—		2,077		5
Total commercial	18,970		170		39,123		507		26,316		606		44,065		1,679
Inventory finance	333		35		497		22		332		69		693		77
Auto finance	2,241		—		1,134		—		1,757		—		909		—
Total impaired loans without an allowance recorded	30,915		495		46,673		1,075		38,053		1,388		70,064		4,078
Total impaired loans	$	230,973	$	2,260	$	265,877	$	3,702	$	233,623	$	6,507	$	290,238	$	11,364

Note 6.  Deposits

Deposits consisted of the following:

	At September 30, 2016						At December 31, 2015
(Dollars in thousands)	Weighted-Average Rate		Amount		% of Total		Weighted-Average Rate		Amount		% of Total
Checking:
Non-interest bearing	—	%	$	3,350,978	19.4	%	—	%	$	3,187,581	19.1	%
Interest bearing	0.01		2,479,079		14.4		0.02		2,502,978		14.9
Total checking	0.01		5,830,057		33.8		0.01		5,690,559		34.0
Savings	0.03		4,670,281		27.1		0.06		4,717,457		28.2
Money market	0.62		2,450,576		14.2		0.63		2,408,180		14.5
Certificates of deposit	1.06		4,283,292		24.9		0.91		3,903,793		23.3
Total deposits	0.36		$	17,234,206	100.0	%	0.30		$	16,719,989	100.0	%

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Certificates of deposit had the following remaining maturities at September 30, 2016:

(In thousands)	Denominations  $100 Thousand or Greater		Denominations Less Than  $100 Thousand		Total
Maturity:
Three months or less	$	355,778	$	341,958	$	697,736
Over three through six months	382,681		383,483		766,164
Over six through 12 months	756,120		756,972		1,513,092
Over 12 months	660,307		645,993		1,306,300
Total	$	2,154,886	$	2,128,406	$	4,283,292

The aggregate amount of certificates of deposit with balances equal to or greater than the Federal Deposit Insurance Corporation insurance limit of $250,000 were $599.3 million and $484.2 million at September 30, 2016 and December 31, 2015, respectively.

Note 7.  Short-term Borrowings

Selected information for short-term borrowings (borrowings with an original maturity of one year or less) consisted of the following:

	At September 30, 2016				At December 31, 2015
(Dollars in thousands)	Amount		Rate		Amount		Rate
Period end balance:
Securities sold under repurchase agreements	$	1,514	0.10	%	$	5,381	0.03	%
Total	$	1,514	0.10		$	5,381	0.03
Average daily balances for the period ended:
Federal funds purchased	$	113	0.75	%	$	225	0.45	%
Securities sold under repurchase agreements	5,771		0.39		16,431		0.06
Line of Credit - TCF Commercial Finance Canada, Inc.	1,834		1.75		2,166		1.96
Total	$	7,718	0.72		$	18,822	0.28
Maximum month-end balances for the period ended:
Securities sold under repurchase agreements	$	3,391	N.A.		$	62,995	N.A.
Line of Credit - TCF Commercial Finance Canada, Inc.	5,907		N.A.		5,519		N.A.
N.A. Not Applicable.

At September 30, 2016, the securities sold under short-term repurchase agreements were related to TCF Bank's Repurchase Investment Sweep Agreement product and were collateralized by mortgage-backed securities having a period end fair value of $7.4 million.

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Note 8.  Long-term Borrowings

Long-term borrowings consisted of the following:

		At September 30, 2016							At December 31, 2015
(Dollars in thousands)	Stated Maturity	Amount		Stated Rate					Amount			Stated Rate
Federal Home Loan Bank advances	2016	$	150,000	0.71	%	-	0.72	%	$	447,000		0.54	%	-	1.17	%
	2017	—					—		125,000			0.49		-	0.51
	2018	150,000					0.54		—						—
Subtotal		300,000							572,000
Subordinated bank notes	2016	—					—		74,992						5.50
	2022	108,603					6.25		108,454						6.25
	2025	148,003					4.60		147,861						4.60
Hedge-related basis adjustment(1)		7,659							(209		)
Subtotal		264,265							331,098
Discounted lease rentals	2016	15,154		2.46		-	6.88		48,120			2.39		-	7.95
	2017	56,434		2.45		-	7.88		41,969			2.45		-	7.88
	2018	40,221		2.55		-	7.95		24,496			2.55		-	7.95
	2019	21,566		2.53		-	6.00		9,329			2.53		-	6.00
	2020	10,093		2.64		-	6.90		2,035			2.95		-	5.15
	2021	3,508		2.88		-	4.57		83						4.57
Subtotal		146,976							126,032
Other long-term borrowings	2016	—					—		2,685						1.36
	2017	2,755					1.36		2,742						1.36
Subtotal		2,755							5,427
Total long-term borrowings		$	713,996						$	1,034,557

(1) Related to subordinated bank notes with a stated maturity of 2025.

At September 30, 2016, TCF Bank had pledged loans secured by residential and commercial real estate and Federal Home Loan Bank ("FHLB") stock with an aggregate carrying value of $4.1 billion as collateral for FHLB advances. At September 30, 2016, $150.0 million of FHLB advances outstanding were prepayable monthly at TCF's option.

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Note 9.  Regulatory Capital Requirements

TCF and TCF Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possible additional discretionary, actions by the federal banking agencies that could have a material adverse effect on TCF. In general, TCF Bank may not declare or pay a dividend to TCF Financial in excess of 100% of its net retained earnings for the current year combined with its net retained earnings for the preceding two calendar years, which was $445.4 million at September 30, 2016, without prior approval of the Office of the Comptroller of the Currency ("OCC"). The OCC also has the authority to prohibit the payment of dividends by a national bank when it determines such payments would constitute an unsafe and unsound banking practice. TCF Bank's ability to make capital distributions in the future may require regulatory approval and may be restricted by its regulatory authorities. TCF Bank's ability to make any such distributions will also depend on its earnings and ability to meet minimum regulatory capital requirements in effect during future periods. These capital adequacy standards may be higher in the future than existing minimum regulatory capital requirements.

The following table presents regulatory capital information for TCF and TCF Bank:

	TCF						TCF Bank
	At September 30,			At December 31,			At September 30,			At December 31,			Well-capitalized Standard		Minimum Capital Requirement(1)
(Dollars in thousands)	2016			2015			2016			2015
Regulatory Capital:
Common equity Tier 1 capital	$	1,936,029		$	1,814,442		$	2,110,923		$	1,992,584
Tier 1 capital	2,215,312			2,092,195			2,129,849			2,008,585
Total capital	2,596,697			2,487,060			2,546,708			2,425,682
Regulatory Capital Ratios:
Common equity Tier 1 capital ratio	10.35		%	10.00		%	11.29		%	10.99		%	6.50	%	4.50	%
Tier 1 risk-based capital ratio	11.85			11.54			11.39			11.07			8.00		6.00
Total risk-based capital ratio	13.89			13.71			13.62			13.37			10.00		8.00
Tier 1 leverage ratio	10.66			10.46			10.25			10.04			5.00		4.00

(1) Excludes capital conservation buffer of 0.625% as of September 30, 2016.

Note 10.  Stock Compensation

The following table reflects TCF's restricted stock and stock option transactions under the TCF Financial 2015 Omnibus Incentive Plan ("Omnibus Incentive Plan") and the TCF Financial Incentive Stock Program ("Incentive Stock Program") during the nine months ended September 30, 2016:

	Restricted Stock									Stock Options
	Shares		Price Range					Weighted- Average Grant Date Fair Value		Shares		Price Range					Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price
Outstanding at December 31, 2015	3,273,086		$	6.16	-	$	16.28	$	13.09	1,379,000		$	12.85	-	$	15.75	2.17	$	14.07
Granted	834,000		9.48		-	13.05		12.05		—		—		-	—		—	—
Exercised	—		—		-	—		—		(800,000	)	12.85		-	12.85		—	12.85
Forfeited/canceled	(205,483	)	6.16		-	15.96		13.54		(118,000	)	15.75		-	15.75		—	15.75
Vested	(401,225	)	9.65		-	15.96		13.10		—		—		-	—		—	—
Outstanding at September 30, 2016	3,500,378		7.73		-	16.28		12.81		461,000		15.75		-	15.75		1.31	15.75
Exercisable at September 30, 2016	N.A.							N.A.		461,000		15.75		-	15.75			15.75

N.A. Not Applicable.

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Unrecognized stock compensation expense for restricted stock awards and options was $27.0 million, excluding estimated forfeitures, with a weighted-average remaining amortization period of 2.0 years at September 30, 2016.

At September 30, 2016, there were 50,000 and 1,050,000 shares of performance-based restricted stock outstanding under the Omnibus Incentive Plan and Incentive Stock Program, respectively, that will vest only if certain performance goals and service conditions are achieved. Failure to achieve the performance and service conditions will result in all or a portion of the shares being forfeited.

The number of restricted stock units granted under the Omnibus Incentive Plan was 228,867 at target and the actual restricted stock units granted will depend on actual performance with a maximum total payout of 150% of target. The weighted-average remaining amortization period of the restricted stock units was 1.9 years at September 30, 2016.

Valuation and related assumption information for TCF's stock option plans related to options issued in 2008 have not changed significantly from December 31, 2015 andno stock options were subsequently issued under the Incentive Stock Program. As of September 30, 2016, no stock options were issued under the Omnibus Incentive Plan.

Note 11.  Employee Benefit Plans

The following tables set forth the net periodic benefit plan (income) cost included in compensation and employee benefits expense for the TCF Cash Balance Pension Plan (the "Pension Plan") and health care benefits for eligible retired employees (the "Postretirement Plan") for the three and nine months ended September 30, 2016 and 2015:

	Pension Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	321		$	303		$	961		$	911
Return on plan assets	(147		)	(159		)	(440		)	(479		)
Net periodic benefit plan (income) cost	$	174		$	144		$	521		$	432

	Postretirement Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	37		$	39		$	113		$	115
Amortization of prior service cost	(12		)	(12		)	(35		)	(35		)
Net periodic benefit plan (income) cost	$	25		$	27		$	78		$	80

TCF made no cash contributions to the Pension Plan in either of the nine months ended September 30, 2016 or 2015. During the three and nine months ended September 30, 2016 and 2015, TCF contributed $0.1 million and $0.3 million, respectively, to the Postretirement Plan.

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Note 12.  Derivative Instruments

All derivative instruments are recognized within other assets or other liabilities at fair value within the Consolidated Statements of Financial Condition. The Company's derivative instruments are subject to master netting arrangements and collateral arrangements and qualify for offset in the Consolidated Statements of Financial Condition. A master netting arrangement with a counterparty creates a right of offset for amounts due to and from that same counterparty that is enforceable in the event of a default or bankruptcy. The Company's policy is to recognize amounts subject to master netting arrangements and collateral arrangements on a net basis in the Consolidated Statements of Financial Condition. The value of derivative instruments will vary over their contractual terms as the related underlying rates fluctuate. The accounting for changes in the fair value of a derivative instrument depends on whether or not the contract has been designated and qualifies as a hedge. To qualify as a hedge, a contract must be highly effective at reducing the risk associated with the exposure being hedged. In addition, for a contract to be designated as a hedge, the risk management objective and strategy must be documented at inception. Hedge documentation must also identify the hedging instrument, the asset or liability and type of risk to be hedged and how the effectiveness of the contract is assessed prospectively and retrospectively. To assess effectiveness, TCF uses statistical methods such as regression analysis. A contract that has been, and is expected to continue to be, effective at offsetting changes in fair values or the net investment must be assessed and documented at least quarterly. If it is determined that a contract is not highly effective at hedging the designated exposure, hedge accounting is discontinued.

Upon origination of a derivative instrument, the contract is designated either as a hedge of the exposure to changes in the fair value of an asset or liability due to changes in market risk ("fair value hedge"), a hedge of the volatility of an investment in foreign operations driven by changes in foreign currency exchange rates ("net investment hedge"), or is not designated as a hedge.

Fair Value Hedges During the first quarter of 2015, TCF Bank entered into an interest rate swap agreement related to its contemporaneously issued subordinated debt, which settles through a central clearing house. The swap was designated as a fair value hedge and effectively converts the fixed interest rate to a floating rate based on the three-month London InterBank Offered Rate plus a fixed number of basis points on the $150.0 million notional amount through February 27, 2025, the maturity date of the subordinated debt. In exchange, TCF Bank will receive 4.60% fixed-rate interest on the $150.0 million notional amount from the swap counterparty.

The interest rate swap substantially offsets the change in fair value of the hedged underlying debt that is attributable to the changes in market risk. The gains and losses related to changes in the fair value of the interest rate swap as well as the offsetting changes in fair value of the hedged debt are reflected in non-interest income.

Net Investment Hedges  Forward foreign exchange contracts, that generally settle within 34 days, are used to manage the foreign exchange risk associated with the Company's net investment in TCF Commercial Finance Canada, Inc., a wholly-owned indirect Canadian subsidiary of TCF Bank. Changes in net investment hedges recorded within other comprehensive income (loss) are subsequently reclassified to non-interest expense during the period in which the foreign investment is substantially liquidated or when other elements of the currency translation adjustment are reclassified to income.

Derivatives Not Designated as Hedges  Certain of TCF's forward foreign exchange contracts are not designated as hedges and are generally settled within 34 days. Changes in the fair value of these forward foreign exchange contracts are reflected in non-interest expense.

TCF executes interest rate swap agreements with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged with offsetting interest rate swaps that TCF executes with a third party and settles through a central clearing house, minimizing TCF's net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are reflected in non-interest income. These contracts have original fixed maturity dates ranging from three to seven years.

TCF enters into interest rate lock commitments in conjunction with the sale of certain consumer real estate loans. These interest rate lock commitments are agreements to extend credit under certain specified terms and conditions at fixed rates and have original lock expirations of up to 60 days. They are not designated as hedges and accordingly, changes in the valuation of these commitments are reflected in non-interest income.

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During the second quarter of 2012, TCF sold its Visa^® Class B stock. In conjunction with the sale, TCF and the purchaser entered into a derivative transaction whereby TCF may receive or be required to make cash payments whenever the conversion ratio of the Visa Class B stock into Visa Class A stock is adjusted. The fair value of this derivative has been determined using estimated future cash flows using probability weighted scenarios for multiple estimates of Visa's aggregate exposure to covered litigation matters, which include consideration of amounts funded by Visa into its escrow account for the covered litigation matters. Changes, if any, in the valuation of this swap agreement, which has no determinable maturity date, are reflected in non-interest expense.

The following tables summarize TCF's outstanding derivative instruments as of September 30, 2016 and December 31, 2015. See Note 13, Fair Value Disclosures, for additional information.

	At September 30, 2016
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	8,990	$	(3,703	)	$	5,287
Forward foreign exchange contracts	59,649		447		(182		)	265
Derivatives not designated as hedges:
Forward foreign exchange contracts	194,259		2,196		(1,504		)	692
Interest rate contracts	126,451		3,827		—			3,827
Interest rate lock commitments	52,088		866		—			866
Total derivative assets			$	16,326	$	(5,389	)	$	10,937
Derivative Liabilities:
Derivatives not designated as hedges:
Forward foreign exchange contracts	202,486		835		(791		)	44
Interest rate contracts	126,451		4,002		(4,002		)	—
Other contracts	13,804		387		(387		)	—
Interest rate lock commitments	374		4		—			4
Total derivative liabilities			$	5,228	$	(5,180	)	$	48
	At December 31, 2015
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Forward foreign exchange contracts	$	47,409	$	858	$	—		$	858
Derivatives not designated as hedges:
Forward foreign exchange contracts	260,678		5,057		(2,081		)	2,976
Interest rate contracts	111,347		2,093		—			2,093
Interest rate lock commitments	50,667		729		—			729
Total derivative assets			$	8,737	$	(2,081	)	$	6,656
Derivative Liabilities:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	142	$	(142	)	$	—
Derivatives not designated as hedges:
Forward foreign exchange contracts	187,902		1,192		(1,081		)	111
Interest rate contracts	111,347		2,175		(2,175		)	—
Other contracts	13,804		305		(305		)	—
Interest rate lock commitments	3,218		13		—			13
Total derivative liabilities			$	3,827	$	(3,703	)	$	124

23

The following table summarizes the pre-tax impact of derivative activity within the Consolidated Statements of Income and the Consolidated Statements of Comprehensive Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	Income Statement Location	2016			2015			2016			2015
Consolidated Statements of Income:
Fair value hedges:
Interest rate contracts	Other non-interest income	$	(1,407	)	$	6,296		$	9,132		$	2,029
Non-derivative hedged items	Other non-interest income	1,333			(5,425		)	(7,868		)	(1,862		)
Not designated as hedges:
Forward foreign exchange contracts	Other non-interest expense	5,979			26,574			(23,459		)	55,866
Interest rate lock commitments	Gains on sales of consumer real estate loans, net	(91		)	189			146			359
Interest rate contracts	Other non-interest income	27			(48		)	(92		)	(28		)
Other contracts	Other non-interest expense	—			—			(319		)	—
Net gain (loss) recognized		$	5,841		$	27,586		$	(22,460	)	$	56,364
Consolidated Statements of Comprehensive Income:
Net investment hedges:
Forward foreign exchange contracts	Other comprehensive income (loss)	$	904		$	2,858		$	(2,691	)	$	5,772
Net unrealized gain (loss)		$	904		$	2,858		$	(2,691	)	$	5,772

TCF executes all of its forward foreign exchange contracts in the over-the-counter market with large financial institutions pursuant to International Swaps and Derivatives Association, Inc. agreements. These agreements include credit risk-related features that enhance the creditworthiness of these instruments as compared with other obligations of the respective counterparty with whom TCF has transacted by requiring that additional collateral be posted under certain circumstances. The amount of collateral required depends on the contract and is determined daily based on market and currency exchange rate conditions.

At September 30, 2016, credit risk-related contingent features existed on forward foreign exchange contracts with a notional value of $121.9 million. In the event TCF is rated less than BB- by Standard and Poor's, the contracts could be terminated or TCF may be required to provide approximately $2.4 million in additional collateral. There were no forward foreign exchange contracts containing credit risk-related features in a net liability position at September 30, 2016.

At September 30, 2016, TCF had posted $2.8 million, $1.4 million and $0.4 million of cash collateral related to its interest rate contracts, other contracts and forward foreign exchange contracts, respectively, and had received $1.2 million of cash collateral related to its forward foreign exchange contracts.

Note 13.  Fair Value Disclosures

TCF uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The Company's fair values are based on the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available for sale, certain loans and leases held for sale, interest-only strips, forward foreign exchange contracts, interest rate contracts, interest rate lock commitments, forward loan sales commitments, assets and liabilities held in trust for deferred compensation plans and other contracts are recorded at fair value on a recurring basis. From time to time we may be required to record at fair value other assets on a non-recurring basis, such as certain securities held to maturity, loans, other real estate owned, repossessed and returned assets and the securitization receivable. These non-recurring fair value adjustments typically involve application of lower of cost or fair value accounting or write-downs of individual assets.

24

The following is a discussion of the fair value hierarchy and the valuation methodologies used for assets and liabilities recorded at fair value on a recurring or non-recurring basis and for estimating fair value of financial instruments not recorded at fair value.

TCF groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the degree and reliability of estimates and assumptions used to determine fair value as follows: Level 1, which includes valuations that are based on prices obtained from independent pricing sources for the same instruments traded in active markets; Level 2, which includes valuations that are based on prices obtained from independent pricing sources that are based on observable transactions of similar instruments, but not quoted markets; and Level 3, for which valuations are generated from Company model-based techniques that use significant unobservable inputs. Such unobservable inputs reflect estimates of assumptions that market participants would use in pricing the asset or liability.

Investments The carrying value of investments in FHLB stock and Federal Reserve Bank stock, categorized as Level 2, approximates fair value based on redemption at par value.

Securities Held to Maturity Securities held to maturity consist primarily of securities of U.S. Government sponsored enterprises and federal agencies. The fair value of securities of U.S. Government sponsored enterprises and federal agencies, categorized as Level 2, is estimated using prices obtained from independent asset pricing services that are based on observable transactions, but not quoted markets. Management reviews the prices obtained from independent asset pricing services for unusual fluctuations and comparisons to current market trading activity. The fair value of other mortgage-backed securities and other securities, categorized as Level 3, is estimated based on discounted cash flows using consideration of credit exposure and other internal pricing methods. There is no observable secondary market for these securities.

Securities Available for Sale Securities available for sale consist primarily of securities of U.S. Government sponsored enterprises and federal agencies, and obligations of states and political subdivisions. The fair value of these securities, categorized as Level 2, is recorded using prices obtained from independent asset pricing services that are based on observable transactions, but not quoted markets. Management reviews the prices obtained from independent asset pricing services for unusual fluctuations and comparisons to current market trading activity.

Loans and Leases Held for Sale Loans and leases held for sale are generally carried at the lower of cost or fair value. Estimated fair values are based upon recent loan sale transactions and any available price quotes on loans with similar coupons, maturities and credit quality. Certain other loans and leases held for sale are recorded at fair value under the elected fair value option. TCF relies on internal valuation models which utilize quoted investor prices to estimate the fair value of these loans. Loans and leases held for sale are categorized as Level 3.

Loans The fair value of loans, categorized as Level 3, is estimated based on discounted expected cash flows and recent sales of similar loans. The discounted cash flows include assumptions for prepayment estimates over each loan's remaining life, consideration of the current interest rate environment compared with the weighted average rate of each portfolio, a credit risk component based on the historical and expected performance of each portfolio and a liquidity adjustment related to the current market environment. TCF also uses pricing data from recent sales of loans with similar risk characteristics as data points to validate the assumptions used in estimating the fair value of certain loans.

Loans for which repayment is expected to be provided solely by the value of the underlying collateral, categorized as Level 3 and recorded at fair value on a non-recurring basis, are valued based on the fair value of that collateral less estimated selling costs. Such loans include non-accrual impaired loans as well as certain delinquent non-accrual consumer real estate and auto finance loans. The fair value of the collateral is determined based on internal estimates and assessments provided by third-party appraisers.

Interest-only Strips The fair value of interest-only strips, categorized as Level 3, represents the present value of future cash flows expected to be received by TCF on certain assets. TCF uses available market data, along with its own empirical data and discounted cash flow models, to arrive at the estimated fair value of its interest-only strips. The present value of the estimated expected future cash flows to be received is determined by using discount, loss and prepayment rates that TCF believes are commensurate with the risks associated with the cash flows and what a market participant would use. These assumptions are inherently subject to volatility and uncertainty and, as a result, the estimated fair value of the interest-only strips may fluctuate significantly from period to period.

25

Forward Foreign Exchange Contracts TCF's forward foreign exchange contracts are currency contracts executed in over-the-counter markets and are recorded at fair value using a cash flow model that includes key inputs such as foreign exchange rates and, in accordance with GAAP, an assessment of the risk of counterparty non-performance. The risk of counterparty non-performance is based on external assessments of credit risk. The fair value of these contracts, categorized as Level 2, is based on observable transactions, but not quoted markets.

Interest Rate Contracts TCF executes interest rate swap agreements with commercial banking customers to facilitate the customer's risk management strategy. These interest rate swaps are simultaneously hedged by offsetting interest rate swaps TCF executes with a third party, minimizing TCF's net risk exposure resulting from such transactions. TCF has an interest rate swap agreement to convert its $150.0 million of fixed-rate subordinated notes to floating rate debt. These derivative instruments are recorded at fair value. The fair value of these swap agreements, categorized as Level 2, is determined using a cash flow model which considers the forward curve, the discount curve and credit valuation adjustments related to counterparty and/or borrower non-performance risk.

Interest Rate Lock Commitments and Forward Loan Sales Commitments TCF's interest rate lock commitments are derivative instruments which are carried at fair value. The related forward loan sales commitments to sell the resulting loans held for sale are also recorded at fair value under the elected fair value option. TCF relies on internal valuation models to estimate the fair value of these instruments. The valuation models utilize estimated rates of successful loan closings and quoted investor prices. While these models use both Level 2 and 3 inputs, TCF has determined that the majority of the inputs significant in the valuation of these commitments fall within Level 3 and therefore they are categorized as Level 3.

Other Real Estate Owned and Repossessed and Returned Assets The fair value of other real estate owned, categorized as Level 3, is based on independent appraisals, real estate brokers' price opinions or automated valuation methods, less estimated selling costs. Certain properties require assumptions that are not observable in an active market in the determination of fair value. The fair value of repossessed and returned assets is based on available pricing guides, auction results or price opinions, less estimated selling costs. Assets acquired through foreclosure, repossession or returned to TCF are initially recorded at the lower of the loan or lease carrying amount or fair value less estimated selling costs at the time of transfer to other real estate owned or repossessed and returned assets. Other real estate owned at September 30, 2016 and December 31, 2015 was $33.7 million and $50.0 million, respectively. Repossessed and returned assets at September 30, 2016 and December 31, 2015 was $8.8 million and $8.0 million, respectively. Other real estate owned and repossessed and returned assets were written down $2.0 million and $7.0 million, which was included in foreclosed real estate and repossessed assets, net expense for the three and nine months ended September 30, 2016, respectively, compared with $2.9 million and $10.4 million for the same periods in 2015.

Securitization Receivable TCF executed a consumer auto loan securitization during the second quarter of 2016 with a related receivable representing a cash reserve account posted at the inception of the securitization. The fair value of the securitization receivable, categorized as Level 3, is estimated based on discounted cash flows using interest rates for borrowings of similar remaining maturities plus a spread based on management's judgment.

Assets and Liabilities Held in Trust for Deferred Compensation Plans Assets held in trust for deferred compensation plans include investments in publicly traded securities, excluding TCF common stock reported in treasury and other equity, and U.S. Treasury notes. The fair value of these assets, categorized as Level 1, is based upon prices obtained from independent asset pricing services based on active markets. The fair value of the liabilities equals the fair value of the assets.

Other Contracts TCF has a swap agreement related to the sale of TCF's Visa Class B stock, categorized as Level 3. The fair value of the Visa agreement is based upon TCF's estimated exposure related to the Visa covered litigation through a probability analysis of the funding and estimated settlement amounts.

Deposits The fair value of checking, savings and money market deposits, categorized as Level 1, is deemed equal to the amount payable on demand. The fair value of certificates of deposit, categorized as Level 2, is estimated based on discounted cash flows using currently offered market rates. The intangible value of long-term relationships with depositors is not taken into account in the fair values disclosed.

26

Long-term Borrowings The fair value of TCF's long-term borrowings, categorized as Level 2, is estimated based on observable market prices and discounted cash flows using interest rates for borrowings of similar remaining maturities and characteristics. The fair value of other long-term borrowings, categorized as Level 3, is based on unobservable inputs determined at the time of origination.

Financial Instruments with Off-Balance Sheet Risk The fair value of TCF's commitments to extend credit and standby letters of credit, categorized as Level 2, is estimated using fees currently charged to enter into similar agreements. Substantially all commitments to extend credit and standby letters of credit have floating interest rates and do not expose TCF to interest rate risk; therefore fair value is approximately equal to carrying value.

The following tables present the balances of assets and liabilities measured at fair value on a recurring and non-recurring basis:

	Fair Value Measurements at September 30, 2016
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	805,275	$	—	$	805,275
Other	—		—		22		22
Obligations of states and political subdivisions	—		614,524		—		614,524
Loans and leases held for sale	—		—		6,331		6,331
Interest-only strips	—		—		43,145		43,145
Forward foreign exchange contracts(1)	—		2,643		—		2,643
Interest rate contracts(1)	—		12,817		—		12,817
Interest rate lock commitments(1)	—		—		866		866
Forward loan sales commitments	—		—		3		3
Assets held in trust for deferred compensation plans	22,156		—		—		22,156
Total assets	$	22,156	$	1,435,259	$	50,367	$	1,507,782
Forward foreign exchange contracts(1)	$	—	$	835	$	—	$	835
Interest rate contracts(1)	—		4,002		—		4,002
Interest rate lock commitments(1)	—		—		4		4
Forward loan sales commitments	—		—		199		199
Liabilities held in trust for deferred compensation plans	22,156		—		—		22,156
Other contracts(1)	—		—		387		387
Total liabilities	$	22,156	$	4,837	$	590	$	27,583
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	3,272	$	3,272
Loans	—		—		122,457		122,457
Other real estate owned:
Consumer	—		—		19,906		19,906
Commercial	—		—		3,874		3,874
Repossessed and returned assets	—		2,641		2,218		4,859
Total non-recurring fair value measurements	$	—	$	2,641	$	151,727	$	154,368

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

27

	Fair Value Measurements at December 31, 2015
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	621,930	$	—	$	621,930
Other	—		—		34		34
Obligations of states and political subdivisions	—		266,921		—		266,921
Loans and leases held for sale	—		—		10,568		10,568
Interest-only strips	—		—		44,332		44,332
Forward foreign exchange contracts(1)	—		5,915		—		5,915
Interest rate contracts(1)	—		2,093		—		2,093
Interest rate lock commitments(1)	—		—		729		729
Forward loan sales commitments	—		—		284		284
Assets held in trust for deferred compensation plans	19,731		—		—		19,731
Total assets	$	19,731	$	896,859	$	55,947	$	972,537
Forward foreign exchange contracts(1)	$	—	$	1,192	$	—	$	1,192
Interest rate contracts(1)	—		2,317		—		2,317
Interest rate lock commitments(1)	—		—		13		13
Forward loan sales commitments	—		—		19		19
Liabilities held in trust for deferred compensation plans	19,731		—		—		19,731
Other contracts(1)	—		—		305		305
Total liabilities	$	19,731	$	3,509	$	337	$	23,577
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	1,110	$	1,110
Loans	—		—		130,797		130,797
Other real estate owned:
Consumer	—		—		37,619		37,619
Commercial	—		—		5,249		5,249
Repossessed and returned assets	—		2,673		2,197		4,870
Total non-recurring fair value measurements	$	—	$	2,673	$	176,972	$	179,645

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

Management assesses the appropriate classification of financial assets and liabilities within the fair value hierarchy by monitoring the level of availability of observable market information. Changes in markets or economic conditions, as well as changes to Company valuation models may require the transfer of financial instruments from one fair value level to another. Such transfers, if any, are recorded at the fair values as of the beginning of the quarter in which the transfer occurred. TCF had no transfers in the nine months ended September 30, 2016 and 2015.

28

The following table presents changes in Level 3 assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Three Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	25		$	7,565		$	48,411		$	953		$	(317	)	$	(466	)
Total net gains (losses) included in:
Net income	—			(72		)	(819		)	(91		)	121			—
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(95,901		)	—			—			—			—
Originations	—			94,739			2,513			—			—			—
Principal paydowns / settlements	(3		)	—			(7,744		)	—			—			79
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Three Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	45		$	4,962		$	55,944		$	455		$	(5	)	$	(465	)
Total net gains (losses) included in:
Net income	—			18			1,520			188			(13		)	—
Sales	—			(76,677		)	—			—			—			—
Originations	—			77,502			2,711			—			—			—
Principal paydowns / settlements	(7		)	—			(9,476		)	—			—			79
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)
(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Nine Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	34		$	10,568		$	44,332		$	716		$	265		$	(305	)
Total net gains (losses) included in:
Net income	—			126			1,697			146			(461		)	(318		)
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(257,641		)	—			—			—			—
Originations	—			253,278			19,121			—			—			—
Principal paydowns / settlements	(12		)	—			(22,789		)	—			—			236
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Nine Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	55		$	3,308		$	69,789		$	285		$	(23	)	$	(621	)
Total net gains (losses) included in:
Net income	—			50			5,309			358			5			—
Sales	—			(212,940		)	—			—			—			—
Originations	—			215,387			6,948			—			—			—
Principal paydowns / settlements	(17		)	—			(31,347		)	—			—			235
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)

29

Fair Value Option

TCF Bank originates first mortgage lien loans in its primary banking markets and sells the loans through a correspondent relationship. TCF elected the fair value option for these loans. This election facilitates the offsetting of changes in fair values of the loans held for sale and the derivative financial instruments used to economically hedge them. The following table presents the difference between the aggregate fair value and aggregate unpaid principal balance of these loans held for sale:

(In thousands)	At September 30, 2016		At December 31, 2015
Fair value carrying amount	$	6,331	$	10,568
Aggregate unpaid principal amount	6,202		10,547
Fair value carrying amount less aggregate unpaid principal	$	129	$	21

Differences between the fair value carrying amount and the aggregate unpaid principal balance include changes in fair value recorded at and subsequent to funding and gains and losses on the related loan commitment prior to funding. No loans recorded under the fair value option were delinquent or on non-accrual status at September 30, 2016 or December 31, 2015. The net gain from initial measurement of the correspondent lending loans held for sale, any subsequent changes in fair value while the loans are outstanding and any actual adjustment to the gains realized upon sales of the loans totaled $2.1 million and $5.9 million for the third quarter and first nine months of 2016, respectively, compared with $1.7 million and $4.7 million for the same periods in 2015, and is included in gains on sales of consumer real estate loans, net. This amount excludes the impact from the interest rate lock commitments and forward loan sales commitments which are also included in gains on sales of consumer real estate loans, net.

Disclosures About Fair Value of Financial Instruments

Management discloses the estimated fair value of financial instruments, both assets and liabilities on and off the balance sheet, for which it is practicable to estimate fair value. These fair value estimates were made at September 30, 2016 and December 31, 2015, based on relevant market information and information about the financial instruments. Fair value estimates are intended to represent the price at which an asset could be sold or a liability could be settled. However, given there is no active market or observable market transactions for many of the Company's financial instruments, the estimates of fair values are subjective in nature, involve uncertainties and include matters of significant judgment. Changes in assumptions could significantly affect the estimated values.

30

The following tables present the carrying amounts and estimated fair values of the Company's financial instruments, excluding short-term financial assets and liabilities as their carrying amounts approximate fair value and excluding financial instruments recorded at fair value on a recurring basis. This information represents only a portion of TCF's balance sheet and not the estimated value of the Company as a whole. Non-financial instruments such as the intangible value of TCF's branches and core deposits, leasing operations, goodwill, premises and equipment and the future revenues from TCF's customers are not reflected in this disclosure. Therefore, this information is of limited use in assessing the value of TCF.

	Carrying Amount			Estimated Fair Value at September 30, 2016
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	59,707		$	—	$	59,707		$	—	$	59,707
Securities held to maturity	185,230			—		193,684			3,672		197,356
Loans and leases held for sale	386,673			—		—			400,494		400,494
Loans:
Consumer real estate	4,987,324			—		—			5,120,863		5,120,863
Commercial real estate	2,516,048			—		—			2,477,768		2,477,768
Commercial business	634,151			—		—			611,307		611,307
Equipment finance	1,997,295			—		—			1,987,842		1,987,842
Inventory finance	2,261,086			—		—			2,246,040		2,246,040
Auto finance	2,731,900			—		—			2,741,674		2,741,674
Other	17,886			—		—			13,642		13,642
Allowance for loan losses(1)	(155,841		)	—		—			—		—
Securitization receivable(2)	18,743			—		—			18,743		18,743
Total financial instrument assets	$	15,640,202		$	—	$	253,391		$	15,622,045	$	15,875,436
Financial instrument liabilities:
Deposits	$	17,234,206		$	12,950,914	$	4,308,873		$	—	$	17,259,787
Long-term borrowings	713,996			—		714,964			2,755		717,719
Total financial instrument liabilities	$	17,948,202		$	12,950,914	$	5,023,837		$	2,755	$	17,977,506
Financial instruments with off-balance sheet risk:(3)
Commitments to extend credit	$	21,469		$	—	$	21,469		$	—	$	21,469
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	21,434		$	—	$	21,434		$	—	$	21,434

(1) Expected credit losses are included in the estimated fair values.

(2) Carrying amounts are included in other assets.

(3) Positive amounts represent assets, negative amounts represent liabilities.

31

	Carrying Amount			Estimated Fair Value at December 31, 2015
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	70,537		$	—	$	70,537		$	—	$	70,537
Securities held to maturity	201,920			—		202,443			4,510		206,953
Loans and leases held for sale	157,625			—		—			165,387		165,387
Loans:
Consumer real estate	5,464,272			—		—			5,543,273		5,543,273
Commercial real estate	2,593,429			—		—			2,556,018		2,556,018
Commercial business	552,403			—		—			531,274		531,274
Equipment finance	1,909,672			—		—			1,888,664		1,888,664
Inventory finance	2,146,754			—		—			2,132,435		2,132,435
Auto finance	2,647,596			—		—			2,650,429		2,650,429
Other	19,297			—		—			14,699		14,699
Allowance for loan losses(1)	(156,054		)	—		—			—		—
Total financial instrument assets	$	15,607,451		$	—	$	272,980		$	15,486,689	$	15,759,669
Financial instrument liabilities:
Deposits	$	16,719,989		$	12,816,196	$	3,927,434		$	—	$	16,743,630
Long-term borrowings	1,034,557			—		1,035,846			5,427		1,041,273
Total financial instrument liabilities	$	17,754,546		$	12,816,196	$	4,963,280		$	5,427	$	17,784,903
Financial instruments with off-balance sheet risk:(2)
Commitments to extend credit	$	23,937		$	—	$	23,937		$	—	$	23,937
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	23,902		$	—	$	23,902		$	—	$	23,902

(1) Expected credit losses are included in the estimated fair values.

(2) Positive amounts represent assets, negative amounts represent liabilities.

Note 14.  Earnings Per Common Share

TCF's restricted stock awards that pay non-forfeitable common stock dividends meet the criteria of a participating security. Accordingly, earnings per share is calculated using the two-class method under which earnings are allocated to both common shares and participating securities.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per-share data)	2016		2015		2016		2015
Basic Earnings Per Common Share:
Net income available to common stockholders	$	51,445	$	47,728	$	147,491	$	130,090
Earnings allocated to participating securities	13		12		38		34
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding for basic earnings per common share	167,366,069		165,990,432		167,155,393		165,479,029
Basic earnings per common share	$	0.31	$	0.29	$	0.88	$	0.79
Diluted Earnings Per Common Share:
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding used in basic earnings per common share calculation	167,366,069		165,990,432		167,155,393		165,479,029
Net dilutive effect of:
Non-participating restricted stock	516,083		355,408		478,641		312,402
Stock options	85,467		210,280		73,866		221,908
Weighted-average common shares outstanding for diluted earnings per common share	167,967,619		166,556,120		167,707,900		166,013,339
Diluted earnings per common share	$	0.31	$	0.29	$	0.88	$	0.78

32

All shares of restricted stock are deducted from weighted-average shares outstanding for the computation of basic earnings per common share. Shares of performance-based restricted stock and restricted stock units are included in the calculation of diluted earnings per common share, using the treasury stock method, at the beginning of the quarter in which the performance goals have been achieved. All other shares of restricted stock, which vest over specified time periods, stock options and warrants are included in the calculation of diluted earnings per common share using the treasury stock method.

For the three and nine months ended September 30, 2016, there were 5.1 million of outstanding shares related to non-participating restricted stock, stock options and warrants that were not included in the computation of diluted earnings per share because they were anti-dilutive. For the three and nine months ended September 30, 2015, there were 4.4 million and 4.6 million, respectively, of outstanding shares related to non-participating restricted stock, stock options and warrants that were not included in the computation of diluted earnings per share because they were anti-dilutive.

Note 15. Other Expense

Other expense consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2016		2015		2016		2015
Loan and lease processing	$	7,035	$	6,626	$	19,526	$	17,950
Professional fees	3,993		5,034		13,170		15,793
Card processing and issuance cost	3,952		3,914		11,634		12,855
Outside processing	3,728		3,383		10,941		10,413
Travel	2,888		2,704		9,185		8,372
Telecommunications	2,696		2,720		8,477		8,918
Other	25,559		21,369		70,253		65,469
Total other expense	$	49,851	$	45,750	$	143,186	$	139,770

Note 16. Business Segments

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented in these financial statements. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Consumer Banking is comprised of all of the Company's consumer-facing businesses and includes retail banking, consumer real estate and auto finance. Wholesale Banking is comprised of commercial real estate and business lending, leasing and equipment finance and inventory finance. Enterprise Services is comprised of (i) corporate treasury, which includes TCF's investment and borrowing portfolios and management of capital, debt and market risks; (ii) corporate functions, such as information technology, risk and credit management, bank operations, finance and human resources, that provide services to the operating segments; (iii) the Holding Company; (iv) and eliminations.

TCF evaluates performance and allocates resources based on each reportable segment's net income or loss. The reportable segments follow GAAP as described in Note 1, Summary of Significant Accounting Policies, in Item 8 of TCF's 2015 Annual Report on Form 10-K, except for the accounting for intercompany interest income and interest expense, which are eliminated in consolidation, and presenting net interest income on a fully tax-equivalent basis. TCF generally accounts for inter-segment sales and transfers at cost.

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The following tables set forth certain information for each of TCF's reportable segments, including a reconciliation of TCF's consolidated totals:

(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Three Months Ended September 30, 2016:
Net interest income	$	140,887	$	85,721	$	(14,590	)	$	212,018
Provision for credit losses	10,720		3,174		—			13,894
Non-interest income	89,373		30,393		(92		)	119,674
Non-interest expense	165,668		61,382		1,828			228,878
Income tax expense (benefit)	19,367		17,355		(6,465		)	30,257
Income (loss) after income tax expense (benefit)	34,505		34,203		(10,045		)	58,663
Income attributable to non-controlling interest	—		2,371		—			2,371
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	34,505	$	31,832	$	(14,892	)	$	51,445
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	111,107	$	112,834	$	8,785		$	232,726
Non-interest income	89,373		30,393		(92		)	119,674
Total	$	200,480	$	143,227	$	8,693		$	352,400
At or For the Three Months Ended September 30, 2015:
Net interest income	$	136,160	$	83,717	$	(14,607	)	$	205,270
Provision for credit losses	8,284		1,734		—			10,018
Non-interest income	81,518		29,856		878			112,252
Non-interest expense	160,624		59,430		2,230			222,284
Income tax expense (benefit)	18,311		18,526		(6,309		)	30,528
Income (loss) after income tax expense (benefit)	30,459		33,883		(9,650		)	54,692
Income attributable to non-controlling interest	—		2,117		—			2,117
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	30,459	$	31,766	$	(14,497	)	$	47,728
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	110,420	$	106,629	$	6,555		$	223,604
Non-interest income	81,518		29,856		878			112,252
Total	$	191,938	$	136,485	$	7,433		$	335,856

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(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Nine Months Ended September 30, 2016:
Net interest income	$	420,886	$	257,917	$	(42,143	)	$	636,660
Provision for credit losses	36,278		9,708		—			45,986
Non-interest income	254,130		94,794		1,308			350,232
Non-interest expense	491,632		184,217		8,679			684,528
Income tax expense (benefit)	52,824		52,866		(18,924		)	86,766
Income (loss) after income tax expense (benefit)	94,282		105,920		(30,590		)	169,612
Income attributable to non-controlling interest	—		7,580		—			7,580
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	94,282	$	98,340	$	(45,131	)	$	147,491
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	336,176	$	338,461	$	24,435		$	699,072
Non-interest income	254,130		94,794		1,308			350,232
Total	$	590,306	$	433,255	$	25,743		$	1,049,304
At or For the Nine Months Ended September 30, 2015:
Net interest income	$	402,127	$	254,247	$	(41,655	)	$	614,719
Provision for credit losses	30,184		5,153		—			35,337
Non-interest income	239,782		84,463		2,094			326,339
Non-interest expense	482,900		180,225		9,035			672,160
Income tax expense (benefit)	47,850		53,947		(19,539		)	82,258
Income (loss) after income tax expense (benefit)	80,975		99,385		(29,057		)	151,303
Income attributable to non-controlling interest	—		6,672		—			6,672
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	80,975	$	92,713	$	(43,598	)	$	130,090
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	325,826	$	322,347	$	18,306		$	666,479
Non-interest income	239,782		84,463		2,094			326,339
Total	$	565,608	$	406,810	$	20,400		$	992,818

Note 17.  Litigation Contingencies

From time to time TCF is a party to legal proceedings arising out of its lending, leasing and deposit operations, including foreclosure proceedings and other collection actions as part of its lending and leasing collections activities. TCF may also be subject to regulatory examinations and enforcement actions brought by federal regulators, including the Securities and Exchange Commission, the Federal Reserve, the OCC and the Consumer Financial Protection Bureau ("CFPB") and TCF's regulatory authorities may impose sanctions on TCF for failures related to regulatory compliance. From time to time borrowers and other customers, and employees and former employees have also brought actions against TCF, in some cases claiming substantial damages. TCF and other financial services companies are subject to the risk of class action litigation. Litigation is often unpredictable and the actual results of litigation cannot be determined and therefore the ultimate resolution of a matter and the possible range of loss associated with certain potential outcomes cannot be established. Except as discussed below, based on our current understanding of TCF's pending legal proceedings, management does not believe that judgments or settlements arising from pending or threatened legal matters, individually or in the aggregate, would have a material adverse effect on the consolidated financial position, operating results or cash flows of TCF.

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On October 29, 2015, TCF received a Notice and Opportunity to Respond and Advise letter ("NORA Letter") from the CFPB notifying TCF that the CFPB's Office of Enforcement is considering recommending that the CFPB take legal action against TCF related to compliance with laws relating to unfair, deceptive and abusive acts and practices and Regulation E, §1005.17, in connection with TCF's practices in administering checking account overdraft program "opt-in" requirements. The purpose of a NORA Letter is to ensure that potential subjects of enforcement actions have the opportunity to present their positions to the CFPB before an enforcement action is recommended or commenced and TCF has provided the CFPB with a written statement setting forth the reasons of law and policy why it believes that the CFPB should not take action. TCF is in discussions with the CFPB and is seeking to reach an appropriate resolution of the matter. We are currently unable to predict the ultimate timing or outcome of this matter. There can be no assurance that the CFPB will not utilize its enforcement authority through settlement, administrative proceedings or litigation and seek remediation, disgorgement, penalties, other monetary relief, injunctive relief or changes to TCF's business practices or operations, which could have a material adverse effect on TCF.

Note 18.  Accumulated Other Comprehensive Income (Loss)

The components of other comprehensive income (loss) and the related tax effects are presented in the table below.

	Three Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	(7,624	)	$	2,896		$	(4,728	)	$	9,972		$	(3,766	)	$	6,206
Reclassification of net (gains) losses to net income	425			(161		)	264			281			(106		)	175
Net unrealized gains (losses)	(7,199		)	2,735			(4,464		)	10,253			(3,872		)	6,381
Net investment hedges:
Unrealized gains (losses) arising during the period	904			(343		)	561			2,858			(1,079		)	1,779
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	(957		)	—			(957		)	(3,049		)	—			(3,049		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(12		)	4			(8		)	(12		)	4			(8		)
Total other comprehensive income (loss)	$	(7,264	)	$	2,396		$	(4,868	)	$	10,050		$	(4,947	)	$	5,103
	Nine Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	32,639		$	(12,396	)	$	20,243		$	2,971		$	(1,122	)	$	1,849
Reclassification of net (gains) losses to net income	1,448			(550		)	898			871			(329		)	542
Net unrealized gains (losses)	34,087			(12,946		)	21,141			3,842			(1,451		)	2,391
Net investment hedges:
Unrealized gains (losses) arising during the period	(2,691		)	1,022			(1,669		)	5,772			(2,180		)	3,592
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	2,791			—			2,791			(6,318		)	—			(6,318		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(35		)	13			(22		)	(35		)	13			(22		)
Total other comprehensive income (loss)	$	34,152		$	(11,911	)	$	22,241		$	3,261		$	(3,618	)	$	(357	)

(1)  Foreign investments are deemed to be permanent in nature and therefore TCF does not provide for taxes on foreign currency translation adjustments.

Reclassifications of net (gains) losses to net income for securities available for sale and interest-only strips were recorded in the Consolidated Statements of Income in gains (losses) on securities, net for sales of securities, in interest income for those securities that were previously transferred to held to maturity and in other non-interest expense for interest-only strips. During 2014, TCF transferred $191.7 million of available for sale mortgage-backed securities to held to maturity. At September 30, 2016 and 2015, the unrealized holding loss on the transferred securities retained in accumulated other comprehensive income (loss) totaled $13.3 million and $15.1 million, respectively. These amounts are amortized over the remaining lives of the transferred securities. The tax effect of these reclassifications was recorded in income tax expense in the Consolidated Statements of Income. See Note 11, Employee Benefit Plans, for additional information regarding TCF's recognized postretirement prior service cost.

36

Accumulated other comprehensive income (loss) balances are presented in the table below.

(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	15,898		$	5,019		$	(9,316	)	$	162		$	11,763
Other comprehensive income (loss)	(4,728		)	561			(957		)	—			(5,124		)
Amounts reclassified from accumulated other comprehensive income (loss)	264			—			—			(8		)	256
Net other comprehensive income (loss)	(4,464		)	561			(957		)	(8		)	(4,868		)
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	(12,881	)	$	4,349		$	(8,029	)	$	191		$	(16,370	)
Other comprehensive income (loss)	6,206			1,779			(3,049		)	—			4,936
Amounts reclassified from accumulated other comprehensive income (loss)	175			—			—			(8		)	167
Net other comprehensive income (loss)	6,381			1,779			(3,049		)	(8		)	5,103
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)
(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	(9,707	)	$	7,249		$	(13,064	)	$	176		$	(15,346	)
Other comprehensive income (loss)	20,243			(1,669		)	2,791			—			21,365
Amounts reclassified from accumulated other comprehensive income (loss)	898			—			—			(22		)	876
Net other comprehensive income (loss)	21,141			(1,669		)	2,791			(22		)	22,241
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	(8,891	)	$	2,536		$	(4,760	)	$	205		$	(10,910	)
Other comprehensive income (loss)	1,849			3,592			(6,318		)	—			(877		)
Amounts reclassified from accumulated other comprehensive income (loss)	542			—			—			(22		)	520
Net other comprehensive income (loss)	2,391			3,592			(6,318		)	(22		)	(357		)
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)

37

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Overview

TCF Financial Corporation (together with its direct and indirect subsidiaries, "we," "us," "our," "TCF" or the "Company"), a Delaware corporation, is a national bank holding company based in Wayzata, Minnesota. References herein to "TCF Financial" or the "Holding Company" refer to TCF Financial Corporation on an unconsolidated basis. Its principal subsidiary, TCF National Bank ("TCF Bank"), is headquartered in Sioux Falls, South Dakota. At September 30, 2016, TCF had 341 branches in Illinois, Minnesota, Michigan, Colorado, Wisconsin, Arizona and South Dakota (TCF's primary banking markets). At December 31, 2015, TCF's primary banking markets also included Indiana.

TCF provides convenient financial services through multiple channels in its primary banking markets. TCF has developed products and services designed to meet the specific needs of the largest consumer segments in the market. The Company focuses on attracting and retaining customers through service and convenience, including select locations open seven days a week with extended hours and on most holidays, full-service supermarket branches, access to automated teller machine ("ATM") networks and internet, mobile and telephone banking. TCF's philosophy is to generate interest income, fees and other revenue growth through business lines that emphasize higher yielding assets and low interest cost deposits. TCF's growth strategies include organic growth in existing businesses, development of new products and services, new customer acquisition and acquisitions of portfolios or businesses. New products and services are designed to build on existing businesses and expand into complementary products and services through strategic initiatives. Funded generally through retail deposit generation, TCF continues to focus on profitable asset growth in its leasing and equipment finance, inventory finance and auto finance lending businesses.

Net interest income, the difference between interest income earned on loans and leases, securities, investments and other interest-earning assets (interest income) and interest paid on deposits and borrowings (interest expense), represented 63.9% and 64.5% of TCF's total revenue for the third quarter and first nine months of 2016, respectively, compared with 64.6% and 65.3% for the same periods in 2015. Net interest income can change significantly from period to period based on interest rates, customer prepayment patterns, the volume and mix of interest-earning assets and the volume and mix of interest-bearing and non-interest bearing deposits and borrowings. TCF manages the risk of changes in interest rates on its net interest income through a management Asset & Liability Committee and through related interest rate risk monitoring and management policies. See "Part I, Item 3. Quantitative and Qualitative Disclosures about Market Risk" and "Part II, Item 1A. Risk Factors" for further discussion.

Non-interest income is a significant source of revenue for TCF and an important component of TCF's results of operations. Providing a wide range of retail banking services is an integral component of TCF's business philosophy. Key drivers of bank fees and service charges are the number of deposit accounts and related transaction activity. As an effort to diversify TCF's non-interest income sources and manage credit concentration risk, TCF continues to sell or securitize loans, primarily in consumer real estate and auto finance, which result in gains on sales as well as increased servicing fee income through the growth of the portfolio of loans sold with servicing retained by TCF. In addition, growth in the leasing and equipment finance lending business results in increased non-interest income from sales-type and operating leases.

The following portions of this Management's Discussion and Analysis of Financial Condition and Results of Operations ("Management's Discussion and Analysis") focus in more detail on the results of operations for the third quarter and first nine months of 2016 and 2015, and on information about TCF's balance sheet, loan and lease portfolio, liquidity, funding resources, capital and other matters.

Results of Operations

Performance Summary TCF reported diluted earnings per common share of 31 cents and 88 cents for the third quarter and first nine months of 2016, respectively, compared with 29 cents and 78 cents for the same periods in 2015. TCF reported net income of $56.3 million and $162.0 million for the third quarter and first nine months of 2016, respectively, compared with $52.6 million and $144.6 million for the same periods in 2015.

Return on average assets was 1.12% and 1.07% for the third quarter and first nine months of 2016, respectively, compared with 1.10% and 1.02% for the same periods in 2015. Return on average common equity was 9.59% and 9.39% for the third quarter and first nine months of 2016, respectively, compared with 9.76% and 9.07% for the same periods in 2015.

38

Reportable Segment Results

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Previously, the Company's reportable segments were Lending, Funding and Support Services.

Consumer Banking

Consumer Banking is comprised of all of the Company's consumer-facing businesses and includes retail banking, consumer real estate and auto finance. TCF's consumer banking strategy is primarily to generate deposits to use for funding high credit quality secured loans and leases. Deposits are generated from consumers and small businesses to provide a source of low cost funds and fee income, with a focus on building and maintaining quality customer relationships. The Consumer Banking segment generates a significant portion of the Company's net interest income and non-interest income from fees and service charges, card revenue, ATM revenue, gains on sales of loans and servicing fee income and incurs a significant portion of the Company's provision for credit losses and non-interest expense.

Consumer Banking generated net income available to common stockholders of $34.5 million and $94.3 million for the third quarter and first nine months of 2016, respectively, compared with $30.5 million and $81.0 million for the same periods in 2015.

Consumer Banking net interest income totaled $140.9 million and $420.9 million for the third quarter and first nine months of 2016, respectively, compared with $136.2 million and $402.1 million for the same periods in 2015. The increase from the third quarter of 2015 was primarily due to higher average balances of loans held for sale and auto finance loans. The increase from the first nine months of 2015 was primarily driven by higher average balances of auto finance loans and loans held for sale. The increases from both periods were partially offset by lower interest income from consumer real estate first mortgage lien loan balances and higher interest expense on certificates of deposit.

Consumer Banking provision for credit losses totaled $10.7 million and $36.3 million for the third quarter and first nine months of 2016, respectively, compared with $8.3 million and $30.2 million for the same periods in 2015. The increases from both periods were primarily due to increased reserve requirements related to growth and higher charge-offs in the auto finance portfolio.

Consumer Banking non-interest income totaled $89.4 million and $254.1 million for the third quarter and first nine months of 2016, respectively, compared with $81.5 million and $239.8 million for the same periods in 2015. The increase from the third quarter of 2015 was primarily due to increases in net gains on sales of consumer real estate loans, servicing fee income due to the cumulative effect of the increase in the portfolio of loans sold with servicing retained by TCF and net gains on sales of auto loans, partially offset by a decrease in fees and service charges. The increase from the first nine months of 2015 was primarily due to increases in servicing fee income due to the cumulative effect of the increase in the portfolio of loans sold with servicing retained by TCF and net gains on sales of auto loans and net gains on sales of consumer real estate loans, partially offset by a decrease in fees and service charges. Net gains on sales of auto loans totaled $11.6 million and $33.7 million for the third quarter and first nine months of 2016, respectively, compared with $10.4 million and $27.4 million for the same periods in 2015. Net gains on sales of consumer real estate loans totaled $13.5 million and $33.8 million for the third quarter and first nine months of 2016, respectively, compared with $7.1 million and $27.9 million for the same periods in 2015. Servicing fee income attributable to the Consumer Banking segment totaled $10.1 million and $27.5 million for the third quarter and first nine months of 2016, respectively, compared with $7.5 million and $21.0 million for the same periods in 2015. Average consumer real estate and auto loans serviced for others were $4.8 billion and $4.5 billion for the third quarter and first nine months of 2016, respectively, compared with $3.7 billion and $3.5 billion for the same periods in 2015. Fees and service charges attributable to the Consumer Banking segment totaled $33.3 million and $97.3 million for the third quarter and first nine months of 2016, respectively, compared with $35.5 million and $102.9 million for the same periods in 2015. The decreases from both periods were primarily attributable to ongoing consumer behavior changes, as well as higher average checking account balances per customer.

39

Consumer Banking non-interest expense totaled $165.7 million and $491.6 million for the third quarter and first nine months of 2016, respectively, compared with $160.6 million and $482.9 million for the same periods in 2015. The increase from the third quarter of 2015 was primarily due to higher occupancy and equipment expense, higher impairment charges on interest-only strips and higher severance expense, partially offset by decreases in compensation and benefits expense and net expense related to foreclosed real estate and repossessed assets due primarily to lower operating costs associated with maintaining fewer consumer properties and lower write-downs on existing foreclosed consumer properties. The increase in non-interest expense from the first nine months of 2015 was primarily due to higher occupancy and equipment expense and branch realignment expense of $3.5 million related to the pending closure of two traditional branches and the closure of 33 in-store branches. There was no branch realignment expense during 2015. In addition, compensation and benefits expense increased from the first nine months of 2015 primarily due to increased staff levels to support the growth of auto finance and higher incentives based on production results. These increases were partially offset by a decrease in net expense related to foreclosed real estate and repossessed assets due to lower operating costs associated with maintaining fewer consumer properties, lower write-downs on existing foreclosed consumer properties and higher gains on sales of consumer properties, as well as a decrease in FDIC insurance expense.

Wholesale Banking

Wholesale Banking is comprised of commercial real estate and business lending, leasing and equipment finance and inventory finance. TCF's wholesale banking strategy is primarily to originate high credit quality secured loans and leases for investment.

Wholesale Banking generated net income available to common stockholders of $31.8 million and $98.3 million for the third quarter and first nine months of 2016, respectively, compared with $31.8 million and $92.7 million for the same periods in 2015.

Wholesale Banking net interest income totaled $85.7 million and $257.9 million for the third quarter and first nine months of 2016, respectively, compared with $83.7 million and $254.2 million for the same periods in 2015. The increases from both periods were primarily due to higher interest income from inventory finance loans and higher average loan and lease balances in the leasing and equipment finance portfolio.

Wholesale Banking provision for credit losses totaled $3.2 million and $9.7 million for the third quarter and first nine months of 2016, respectively, compared with $1.7 million and $5.2 million for the same periods in 2015. The increases from both periods were primarily due to increased reserve requirements related to growth and higher net charge-offs in the leasing and equipment finance portfolio.

Wholesale Banking non-interest income totaled $30.4 million and $94.8 million for the third quarter and first nine months of 2016, respectively, compared with $29.9 million and $84.5 million for the same periods in 2015. The increasefrom the third quarter of 2015 was primarily due to an increase in leasing and equipment finance income due to higher operating lease revenue, partially offset by a decrease in sales-type lease revenue. The increase from the first nine months of 2015 was primarily due to an increase in leasing and equipment finance income due to higher operating lease revenue, sales-type lease revenue and gains on non-recourse sales.

Wholesale Banking non-interest expense totaled $61.4 million and $184.2 million for the third quarter and first nine months of 2016, respectively, compared with $59.4 million and $180.2 million for the same periods in 2015. The increase from the third quarter of 2015 was primarily due to increases in (i) allocated costs due to the further build out of risk management and credit, and (ii) operating lease depreciation, partially offset by decreases in (iii) compensation and benefits expense, and (iv) net expense related to foreclosed real estate and repossessed assets primarily due to lower operating costs associated with maintaining fewer commercial properties and lower write-downs on existing foreclosed commercial properties. The increase from the first nine months of 2015 was primarily due to increases in (i) allocated costs due to the further build out of risk management and credit, and (ii) operating lease depreciation, partially offset by decreases in (iii) net expense related to foreclosed real estate and repossessed assets due to lower operating costs associated with maintaining fewer commercial properties, lower write-downs on existing foreclosed commercial properties and higher gains on sales of commercial properties, (iv) compensation and benefits expense, and (v) occupancy and equipment expense.

40

Enterprise Services

Enterprise Services is comprised of (i) corporate treasury, which includes the Company's investment and borrowing portfolios and management of capital, debt and market risks, (ii) corporate functions, such as information technology, risk and credit management, bank operations, finance and human resources, that provide services to the operating segments, (iii) the Holding Company and (iv) eliminations. The Company's investment portfolio accounts for the earning assets within this segment. Borrowings may be used to offset reductions in deposits or to support lending activities. This segment also includes residual revenues and expenses representing the difference between actual amounts incurred by Enterprise Services and amounts allocated to the operating segments, including interest rate risk residuals, such as funds transfer pricing mismatches.

Enterprise Services generated a net loss available to common stockholders of $14.9 million and $45.1 million for the third quarter and first nine months of 2016, respectively, compared with a net loss of $14.5 million and $43.6 million for the same periods in 2015.

Enterprise Services net interest expense totaled $14.6 million and $42.1 million for the third quarter and first nine months of 2016, respectively, compared with $14.6 million and $41.7 million for the same periods in 2015. The increase from the first nine months of 2015 was primarily driven by an increase in funds transfer pricing mismatches, partially offset by an increase in interest income attributable to higher average balances of securities available for sale.

Enterprise Services non-interest income totaled $(0.1) million and $1.3 million for the third quarter and first nine months of 2016, respectively, compared with $0.9 million and $2.1 million for the same periods in 2015. The decrease from the third quarter of 2015 was due to net losses recognized on the change in value of an interest rate swap agreement and the change in value of the related subordinated debt. The decrease from the first nine months of 2015 was primarily due to a gain of $1.7 million related to appreciation of an investment that was donated to the TCF Foundation in the first quarter of 2015, partially offset by net gains recognized on the change in value of an interest rate swap agreement and the change in value of the related subordinated debt.

Enterprise Services non-interest expense totaled $1.8 million and $8.7 million for the third quarter and first nine months of 2016, respectively, compared with $2.2 million and $9.0 million for the same periods in 2015. The decreases from both periods were primarily due to an increase in recoveries of allocated expenses and a decrease in occupancy and equipment expense, partially offset by an increase in compensation and benefits expense.

Consolidated Income Statement Analysis

Net Interest Income  Net interest income represented 63.9% and 64.5% of TCF's total revenue for the third quarter and first nine months of 2016, respectively, compared with 64.6% and 65.3% for the same periods in 2015. Net interest income was $212.0 million and $636.7 million for the third quarter and first nine months of 2016, respectively, compared with $205.3 million and $614.7 million for the same periods in 2015. The increase from the thirdquarter of2015 was primarily due to higher interest income from inventory finance loans and higher average balances of (i) loans and leases held for sale, (ii) securities available for sale, (iii) auto finance loans and (iv) leasing and equipment finance loans and leases. The increase from the first nine months of 2015 was primarily due to higher average balances of auto finance loans, inventory finance loans, loans and leases held for sale, and securities available for sale. The increases from both periods were partially offset by lower interest income from consumer real estate first mortgage lien loan balances and higher interest expense on certificates of deposit.

Net interest income on a fully tax-equivalent basis divided by average interest-earning assets is referred to as the net interest margin, expressed as a percentage. Net interest income and net interest margin are affected by (i) changes in prevailing short- and long-term interest rates, (ii) loan and deposit pricing strategies and competitive conditions, (iii) the volume and mix of interest-earning assets, non-interest bearing deposits and interest-bearing liabilities, (iv) the level of non-accrual loans and leases and other real estate owned and (v) the impact of modified loans and leases.

Net interest margin was 4.34% and 4.35% for the third quarter and first nine months of 2016, respectively, compared with 4.40% and 4.45% for the same periods in 2015. The decreases from both periods were primarily due to higher average interest rates resulting from promotions for certificates of deposit. The decrease from the first nine months of 2015 was also due to margin compression resulting from the impact of the ongoing low interest rate environment.

41

The following tables summarize TCF's average balances, interest, dividends and yields and rates on major categories

of TCF's interest-earning assets and interest-bearing liabilities on a fully tax-equivalent basis:

	Three Months Ended September 30,
	2016						2015
(Dollars in thousands)	Average Balance		Interest(1)		Yields and Rates(1)(2)		Average Balance		Interest(1)		Yields and Rates(1)(2)
Assets:
Investments and other	$	331,107	$	2,380	2.86	%	$	463,312	$	2,937	2.52	%
Securities held to maturity	187,414		1,049		2.24		205,264		1,361		2.65
Securities available for sale:(3)
Taxable	747,890		4,167		2.23		601,889		3,658		2.43
Tax-exempt(4)	570,013		4,553		3.19		92,484		774		3.35
Loans and leases held for sale	558,649		11,406		8.12		348,215		7,895		9.00
Loans and leases:(5)
Consumer real estate:
Fixed-rate	2,216,945		32,041		5.75		2,637,875		37,988		5.72
Variable-rate	2,918,631		38,796		5.29		2,968,507		38,287		5.12
Total consumer real estate	5,135,576		70,837		5.49		5,606,382		76,275		5.40
Commercial:
Fixed-rate	944,347		11,675		4.92		1,137,744		14,484		5.05
Variable- and adjustable-rate	2,147,768		21,121		3.91		1,980,280		18,958		3.80
Total commercial	3,092,115		32,796		4.22		3,118,024		33,442		4.26
Leasing and equipment finance	4,147,488		46,422		4.48		3,821,590		43,863		4.59
Inventory finance	2,272,409		34,665		6.07		2,036,054		29,915		5.83
Auto finance	2,670,272		27,251		4.06		2,361,057		24,557		4.13
Other	9,252		136		5.85		9,833		157		6.31
Total loans and leases	17,327,112		212,107		4.88		16,952,940		208,209		4.88
Total interest-earning assets	19,722,185		235,662		4.76		18,664,104		224,834		4.79
Other assets(6)	1,303,670						1,217,396
Total assets	$	21,025,855					$	19,881,500
Liabilities and Equity:
Non-interest bearing deposits:
Retail	$	1,771,840					$	1,649,995
Small business	894,761						852,211
Commercial and custodial	583,430						516,461
Total non-interest bearing deposits	3,250,031						3,018,667
Interest-bearing deposits:
Checking	2,434,934		88		0.01		2,399,119		135		0.02
Savings	4,661,565		399		0.03		4,860,509		638		0.05
Money market	2,496,590		3,823		0.61		2,297,893		3,571		0.62
Certificates of deposit	4,304,990		11,541		1.07		3,400,282		7,958		0.93
Total interest-bearing deposits	13,898,079		15,851		0.45		12,957,803		12,302		0.38
Total deposits	17,148,110		15,851		0.37		15,976,470		12,302		0.31
Borrowings:
Short-term borrowings	8,485		19		0.86		30,326		17		0.22
Long-term borrowings	729,737		4,838		2.65		1,057,903		6,015		2.27
Total borrowings	738,222		4,857		2.63		1,088,229		6,032		2.21
Total interest-bearing liabilities	14,636,301		20,708		0.56		14,046,032		18,334		0.52
Total deposits and borrowings	17,886,332		20,708		0.46		17,064,699		18,334		0.43
Other liabilities	708,048						578,718
Total liabilities	18,594,380						17,643,417
Total TCF Financial Corp. stockholders' equity	2,409,312						2,218,614
Non-controlling interest in subsidiaries	22,163						19,469
Total equity	2,431,475						2,238,083
Total liabilities and equity	$	21,025,855					$	19,881,500
Net interest income and margin			$	214,954	4.34				$	206,500	4.40

(1) Interest and yields are presented on a fully tax-equivalent basis.

(2) Annualized.

(3) Average balances and yields of securities available for sale are based upon historical amortized cost and exclude equity securities.

(4) The yield on tax-exempt securities available for sale is computed on a tax-equivalent basis using a statutory federal income tax rate of 35% for all periods presented.

(5) Average balances of loans and leases include non-accrual loans and leases and are presented net of unearned income.

(6) Includes leased equipment and related initial direct costs under operating leases of $138.2 million and $107.5 million for the third quarter of 2016 and 2015, respectively.

42

	Nine Months Ended September 30,
	2016						2015
(Dollars in thousands)	Average Balance		Interest(1)		Yields and Rates(1)(2)		Average Balance		Interest(1)		Yields and Rates(1)(2)
Assets:
Investments and other	$	334,210	$	6,992	2.79	%	$	559,443	$	9,650	2.31	%
Securities held to maturity	193,780		3,484		2.40		208,891		4,150		2.65
Securities available for sale:(3)
Taxable	695,721		11,838		2.27		548,161		10,239		2.49
Tax-exempt(4)	457,308		11,049		3.22		33,640		839		3.33
Loans and leases held for sale	475,017		29,878		8.40		322,022		21,505		8.93
Loans and leases:(5)
Consumer real estate:
Fixed-rate	2,324,648		100,386		5.77		2,774,523		121,044		5.83
Variable-rate	2,959,168		117,625		5.31		2,853,636		109,476		5.13
Total consumer real estate	5,283,816		218,011		5.51		5,628,159		230,520		5.48
Commercial:
Fixed-rate	979,913		36,233		4.94		1,201,022		45,168		5.03
Variable- and adjustable-rate	2,140,039		63,601		3.97		1,938,947		55,972		3.86
Total commercial	3,119,952		99,834		4.27		3,139,969		101,140		4.31
Leasing and equipment finance	4,057,755		135,900		4.47		3,767,954		131,086		4.64
Inventory finance	2,422,979		105,633		5.82		2,145,535		91,671		5.71
Auto finance	2,708,470		83,748		4.13		2,198,983		68,041		4.14
Other	9,617		413		5.75		10,721		555		6.92
Total loans and leases	17,602,589		643,539		4.88		16,891,321		623,013		4.93
Total interest-earning assets	19,758,625		706,780		4.78		18,563,478		669,396		4.82
Other assets(6)	1,295,913						1,220,205
Total assets	$	21,054,538					$	19,783,683
Liabilities and Equity:
Non-interest bearing deposits:
Retail	$	1,780,397					$	1,665,489
Small business	870,024						826,581
Commercial and custodial	575,513						501,297
Total non-interest bearing deposits	3,225,934						2,993,367
Interest-bearing deposits:
Checking	2,451,330		261		0.01		2,400,338		423		0.02
Savings	4,679,737		1,081		0.03		5,011,341		2,539		0.07
Money market	2,509,033		11,663		0.62		2,236,811		10,588		0.63
Certificates of deposit	4,239,676		33,730		1.06		3,187,577		20,904		0.88
Total interest-bearing deposits	13,879,776		46,735		0.45		12,836,067		34,454		0.36
Total deposits	17,105,710		46,735		0.36		15,829,434		34,454		0.29
Borrowings:
Short-term borrowings	7,718		42		0.72		15,606		47		0.40
Long-term borrowings	877,123		15,635		2.38		1,156,104		17,259		1.99
Total borrowings	884,841		15,677		2.36		1,171,710		17,306		1.97
Total interest-bearing liabilities	14,764,617		62,412		0.56		14,007,777		51,760		0.49
Total deposits and borrowings	17,990,551		62,412		0.46		17,001,144		51,760		0.41
Other liabilities	683,198						587,168
Total liabilities	18,673,749						17,588,312
Total TCF Financial Corp. stockholders' equity	2,358,387						2,175,676
Non-controlling interest in subsidiaries	22,402						19,695
Total equity	2,380,789						2,195,371
Total liabilities and equity	$	21,054,538					$	19,783,683
Net interest income and margin			$	644,368	4.35				$	617,636	4.45

(1) Interest and yields are presented on a fully tax-equivalent basis.

(2) Annualized.

(3) Average balances and yields of securities available for sale are based upon historical amortized cost and exclude equity securities.

(4) The yield on tax-exempt securities available for sale is computed on a tax-equivalent basis using a statutory federal income tax rate of 35% for all periods presented.

(5) Average balances of loans and leases include non-accrual loans and leases and are presented net of unearned income.

(6) Includes leased equipment and related initial direct costs under operating leases of $134.6 million and $97.5 million for the nine months ended September 30, 2016 and 2015, respectively.

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Provision for Credit Losses  The provision for credit losses is calculated as part of the determination of the allowance for loan and lease losses, which is a critical accounting estimate. TCF's evaluation of incurred losses is based upon historical loss rates multiplied by the respective portfolio's loss emergence period. Factors utilized in the determination and allocation of the allowance for loan and lease losses and the related provision for credit losses include historical trends in loss rates, a portfolio's overall risk characteristics, changes in its character or size, risk rating migration, delinquencies, collateral values, economic outlook and prevailing economic conditions.

The following tables summarize the composition of TCF's provision for credit losses for the third quarter and first nine months of 2016 and 2015:

	Three Months Ended September 30,									Change
(Dollars in thousands)	2016				2015					$			%
Consumer real estate	$	1,402	10.1	%	$	780		7.8	%	$	622		79.7	%
Commercial	411		3.0		(226		)	(2.3	)	637			N.M.
Leasing and equipment finance	2,367		17.0		1,389			13.9		978			70.4
Inventory finance	335		2.4		546			5.4		(211		)	(38.6	)
Auto finance	8,361		60.2		6,750			67.4		1,611			23.9
Other	1,018		7.3		779			7.8		239			30.7
Total	$	13,894	100.0	%	$	10,018		100.0	%	$	3,876		38.7
	Nine Months Ended September 30,									Change
(Dollars in thousands)	2016				2015					$			%
Consumer real estate	$	8,963	19.5	%	$	8,660		24.5	%	$	303		3.5	%
Commercial	1,801		3.9		(295		)	(0.8	)	2,096			N.M.
Leasing and equipment finance	5,922		12.9		2,973			8.4		2,949			99.2
Inventory finance	1,925		4.2		2,627			7.4		(702		)	(26.7	)
Auto finance	26,001		56.5		20,186			57.1		5,815			28.8
Other	1,374		3.0		1,186			3.4		188			15.9
Total	$	45,986	100.0	%	$	35,337		100.0	%	$	10,649		30.1

N.M. Not Meaningful.

TCF provided $13.9 million and $46.0 million for credit losses during the third quarter and first nine months of 2016, respectively, compared with $10.0 million and $35.3 million for the same periods in 2015. The increases from both periods were primarily due to increased reserve requirements related to growth and higher net charge-offs in the auto finance and leasing and equipment finance portfolios.

Net loan and lease charge-offs for the third quarter and first nine months of 2016 were $11.5 million and $33.5 million, respectively, or 0.26% (annualized) and 0.25% (annualized) of average loans and leases, respectively, compared with $9.9 million and $39.0 million, or 0.23% (annualized) and 0.31% (annualized) for the same periods in 2015. The increase from the third quarter of 2015 was primarily due to increased net charge-offs in the auto finance and leasing and equipment finance portfolios, partially offset by improved credit quality in the consumer real estate portfolio. The decrease from the first nine months of 2015 was primarily due to improved credit quality in the consumer real estate portfolio, partially offset by increased net charge-offs in the auto finance and leasing and equipment finance portfolios.

For additional information, see "Consolidated Financial Condition Analysis — Credit Quality" in this Management's Discussion and Analysis and Note 5, Allowance for Loan and Lease Losses and Credit Quality Information of Notes to Consolidated Financial Statements.

44

Non-interest Income  Non-interest income is a significant source of revenue for TCF, representing 36.1% and 35.5% of total revenue for the third quarter and first nine months of 2016, respectively, compared with 35.4% and 34.7% for the same periods in 2015, and is an important factor in TCF's results of operations. Total fees and other revenue were $120.3 million and $350.9 million for the third quarter and first nine months of 2016, respectively, compared with $112.4 million and $326.6 million for the same periods in 2015.

Fees and Service Charges  Fees and service charges totaled $35.1 million and $102.5 million for the third quarter and first nine months of 2016, respectively, compared with $37.0 million and $107.3 million for the same periods in 2015. Fees and service charges represented 64.8% and 64.3% of banking fee revenue for the third quarter and first nine months of 2016, respectively, compared with 65.4% and 65.3% for the same periods in 2015. The decreases from both periods were primarily due to ongoing consumer behavior changes, as well as higher average checking account balances per customer.

Gains on Sales of Auto Loans, Net  Net gains on sales of auto loans totaled $11.6 million and $33.7 million for the third quarter and first nine months of 2016, respectively, compared with $10.4 million and $27.4 million for the same periods in 2015. The increases from both periods were primarily due to increased volume of loans sold. See Note 4, Loans and Leases of Notes to Consolidated Financial Statements for additional information.

Gains on Sales of Consumer Real Estate Loans, Net  Net gains on sales of consumer real estate loans totaled $13.5 million and $33.8 million for the third quarter and first nine months of 2016, respectively, compared with $7.1 million and $27.9 million for the same periods in 2015. The increases from both periods were primarily due to increased volume of loans sold. See Note 4, Loans and Leases of Notes to Consolidated Financial Statements for additional information.

Servicing Fee Income  Servicing fee income totaled $10.4 million and $28.8 million for the third quarter and first nine months of 2016, respectively, compared with $8.0 million and $22.6 million for the same periods in 2015. The increases from both periods were primarily due to the cumulative effect of the increases in the portfolios of auto and consumer real estate loans sold with servicing retained by TCF. Average loans and leases serviced for others were $5.1 billion and $4.7 billion for the third quarter and first nine months of 2016, respectively, compared with $4.0 billion and $3.7 billion for the same periods in 2015.

Leasing and Equipment Finance Leasing and equipment finance income totaled $28.3 million and $87.9 million for the third quarter and first nine months of 2016, respectively, compared with $27.2 million and $75.8 million for the same periods in 2015. The increase fromthethirdquarter of2015 was primary due to higher operating lease revenue, partially offset by a decrease in sales-type lease revenue. The increase from the first nine months of 2015 was primarily due to higher operating lease revenue, sales-type lease revenue and gains on non-recourse sales.

Non-interest Expense  Non-interest expense totaled $228.9 million and $684.5 million for the third quarter and first nine months of 2016, respectively, compared with $222.3 million and $672.2 million for the same periods in 2015.

Compensation and Employee Benefits Compensation and employee benefits expense totaled $117.2 million and $359.7 million for the third quarter and first nine months of 2016, respectively, compared with $116.7 million and $348.7 million for the same periods in 2015. The increase from the first nine months of 2015 was primarily due to increased staff levels to support the growth of auto finance and higher incentives based on production results.

Other Non-interest Expense Other non-interest expense totaled $49.9 million and $143.2 million for the third quarter and first nine months of 2016, respectively, compared with $45.8 million and $139.8 million for the same periods in 2015. The increase fromthethirdquarter of2015 was primarily due to impairment charges of $2.4 million on interest-only strips and an increase in severance expense. Included within other non-interest expense is branch realignment expense of $3.5 million for the first nine months of 2016 related to the pending closure of two traditional branches and the closure of 33 in-store branches. There was no branch realignment expense during 2015.

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Foreclosed Real Estate and Repossessed Assets, Net Foreclosed real estate and repossessed assets expense, net totaled $4.2 million and $11.3 million for the third quarter and first nine months of 2016, respectively, compared with $5.7 million and $18.3 million for the same periods in 2015. The decrease fromthethirdquarter of2015 was primarily due to lower operating costs associated with maintaining fewer consumer and commercial properties and lower write-downs on existing foreclosed consumer properties, partially offset by lower gains on sales of consumer and commercial properties and higher repossessed asset expense. The decrease from the first nine months of 2015 was primarily due to lower operating costs associated with maintaining fewer consumer and commercial properties, lower write-downs on existing foreclosed consumer and commercial properties and higher gains on sales of consumer and commercial properties, partially offset by higher repossessed asset expense.

Income Taxes  Income tax expense was 34.0% and 33.8% of income before income tax expense for the third quarter and first nine months of 2016, respectively, compared with 35.8% and 35.2% for the same periods in 2015. The lower effective income tax rates from both periods were primarily due to increased investments in tax-exempt securities.

Consolidated Financial Condition Analysis

Securities Available for Sale and Securities Held to Maturity Total securities available for sale were $1.4 billion at September 30, 2016, an increase of 59.7% from $0.9 billion at December 31, 2015. TCF's securities available for sale portfolio consists primarily of fixed-rate mortgage-backed securities issued by the Federal National Mortgage Association ("Fannie Mae") and obligations of states and political subdivisions. Total securities held to maturity were $185.2 million at September 30, 2016, a decrease of 8.3% from $201.9 million at December 31, 2015. TCF's securities held to maturity portfolio consists primarily of fixed-rate mortgage-backed securities issued by Fannie Mae. TCF may, from time to time, sell securities and utilize the proceeds to reduce borrowings, fund growth in loans and leases or for other corporate purposes.

The amortized cost, fair value and fully tax-equivalent yield of securities available for sale and securities held to maturity by final contractual maturity at September 30, 2016 and December 31, 2015 are shown below. The remaining contractual principal maturities do not consider possible prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay.

	At September 30, 2016						At December 31, 2015
(Dollars in thousands)	Amortized Cost		Fair Value		Tax-equivalent Yield		Amortized Cost		Fair Value		Tax-equivalent Yield
Securities available for sale:
Mortgage-backed securities:
Due in one year or less	$	1	$	1	8.21	%	$	1	$	1	9.00	%
Due in 1-5 years	22		22		2.21		38		38		2.65
Due in 5-10 years	58,094		59,140		1.93		70,338		70,350		1.93
Due after 10 years	733,113		746,134		2.26		557,178		551,575		2.46
Obligations of states and political subdivisions:
Due in 5-10 years	249,718		261,189		3.15		198,300		202,161		3.19
Due after 10 years	347,876		353,335		3.18		63,889		64,760		3.40
Total securities available for sale	$	1,388,824	$	1,419,821	2.64		$	889,744	$	888,885	2.65
Securities held to maturity:
Mortgage-backed securities:
Due after 10 years	$	182,430	$	194,556	2.58	%	$	198,520	$	203,553	2.64	%
Other securities:
Due in one year or less	—		—		—		100		100		2.00
Due in 1-5 years	1,200		1,200		2.92		1,900		1,900		2.63
Due in 5-10 years	1,600		1,600		3.25		1,400		1,400		3.36
Total securities held to maturity	$	185,230	$	197,356	2.59		$	201,920	$	206,953	2.64

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Loans and Leases  Total loans and leases were $17.4 billion at both September 30, 2016 and December 31, 2015. Loans and leases consisted of the following:

	At September 30, 2016				At December 31, 2015				Change
(Dollars in thousands)	Amount		% of Total		Amount		% of Total		$			%
Consumer real estate:
First mortgage lien	$	2,313,044	13.3	%	$	2,624,956	15.0	%	$	(311,912	)	(11.9	)%
Junior lien	2,674,280		15.4		2,839,316		16.3		(165,036		)	(5.8	)
Total consumer real estate	4,987,324		28.7		5,464,272		31.3		(476,948		)	(8.7	)
Commercial:
Commercial real estate:
Permanent	2,214,685		12.8		2,267,218		13.0		(52,533		)	(2.3	)
Construction and development	301,363		1.7		326,211		1.9		(24,848		)	(7.6	)
Total commercial real estate	2,516,048		14.5		2,593,429		14.9		(77,381		)	(3.0	)
Commercial business	634,151		3.6		552,403		3.2		81,748			14.8
Total commercial	3,150,199		18.1		3,145,832		18.1		4,367			0.1
Leasing and equipment finance	4,236,224		24.4		4,012,248		23.0		223,976			5.6
Inventory finance	2,261,086		13.0		2,146,754		12.3		114,332			5.3
Auto finance	2,731,900		15.7		2,647,596		15.2		84,304			3.2
Other	17,886		0.1		19,297		0.1		(1,411		)	(7.3	)
Total loans and leases	$	17,384,619	100.0	%	$	17,435,999	100.0	%	(51,380		)	(0.3	)

Consumer Real Estate The consumer real estate portfolio consisted of $2.3 billion of first mortgage lien loans and $2.7 billion of junior lien loans at September 30, 2016, decreases of 11.9% and 5.8% from $2.6 billion and $2.8 billion at December 31, 2015, respectively. The decrease in first mortgage lien loans was primarily due to run-off. At September 30, 2016 and December 31, 2015, 70.5% and 74.0%, respectively, of TCF's consumer real estate portfolio were in TCF's primary banking markets. At September 30, 2016, 56.4% of the consumer real estate portfolio carried a variable interest rate tied to the prime rate, compared with 54.6% at December 31, 2015. The average Fair Isaac Corporation ("FICO^®") credit score at loan origination for the consumer real estate portfolio was 735 at September 30, 2016 and 734 at December 31, 2015. As part of TCF's credit risk monitoring, TCF obtains updated FICO score information quarterly. The average updated FICO score for the consumer real estate portfolio was 733 at September 30, 2016 and 731 at December 31, 2015. At September 30, 2016, 59.4% of the consumer real estate portfolio had been originated since January 1, 2009 with annualized net charge-offs of less than 0.01%.

The consumer real estate junior lien portfolio was comprised of $2.4 billion of home equity lines of credit and $292.2 million of amortizing consumer real estate junior lien mortgage loans at September 30, 2016, compared with $2.5 billion and $345.3 million at December 31, 2015, respectively.

Commercial Real Estate and Business Lending The commercial real estate and business lending portfolio consisted of $2.5 billion of commercial real estate loans and $634.2 million of commercial business loans at September 30, 2016, a decrease of 3.0% and an increase of 14.8% from $2.6 billion and $552.4 million at December 31, 2015, respectively. At September 30, 2016, 81.5% of TCF's commercial real estate loans outstanding were secured by properties located in its primary banking markets, compared with 84.1% at December 31, 2015. While commercial real estate collateral is generally located in TCF's primary banking markets, commercial real estate lending follows its strong, proven sponsors into other markets. With an emphasis on secured lending, 99.9% of TCF's total commercial loans were secured either by properties or other business assets at both September 30, 2016 and December 31, 2015. Variable and adjustable-rate loans represented 69.8% of total commercial loans outstanding at September 30, 2016, compared with 67.2% at December 31, 2015. The increase in variable and adjustable-rate loans as a percentage of total commercial loans was primarily due to customers shifting from higher yielding fixed-rate loans to lower yielding variable-rate loans.

Leasing and Equipment Finance The leasing and equipment finance portfolio consisted of $2.2 billion of leases and $2.0 billion of loans at September 30, 2016, increases of 6.5%and 4.6% from $2.1 billion of leases and $1.9 billion of loans at December 31, 2015, respectively. The uninstalled backlog of approved transactions was $500.8 million at September 30, 2016, compared with $446.3 million at December 31, 2015.

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Inventory Finance The inventory finance portfolio totaled $2.3 billion at September 30, 2016, an increase of 5.3% from $2.1 billion at December 31, 2015. The increase was primarily due to an increase within lawn and garden, combined with expansion of the number of active dealers. TCF's inventory finance customers included more than 10,800 active dealers at September 30, 2016, compared with more than 10,500 active dealers at December 31, 2015.

Auto Finance The auto finance portfolio totaled $2.7 billion at September 30, 2016, an increase of 3.2% from $2.6 billion at December 31, 2015. The increase was due to the maturation of the business model. The auto finance network included dealers in all 50 states and more than 11,700 active dealers at September 30, 2016, compared with more than 11,800 active dealers at December 31, 2015. The auto finance portfolio consisted of 22.9% new auto loans and 77.1% used auto loans at September 30, 2016, compared with 24.4% and 75.6% at December 31, 2015, respectively. The average original FICO score for the auto finance held for investment portfolio was 729 and 725 at September 30, 2016 and December 31, 2015, respectively.

Credit Quality  The following summarizes TCF's loan and lease portfolio based on the credit quality factors that TCF believes are the most important and should be considered to understand the overall condition of the portfolio.

Past Due Loans and Leases  The following table summarizes TCF's over 60-day delinquent loan and lease portfolio by type, excluding non-accrual loans and leases. Delinquent balances are determined based on the contractual terms of the loan or lease. See Note 5, Allowance for Loan and Lease Losses and Credit Quality Information of Notes to Consolidated Financial Statements for additional information.

	At September 30, 2016				At December 31, 2015
(Dollars in thousands)	60 Days or More Delinquent and Accruing		Percentage of Portfolio		60 Days or More Delinquent and Accruing		Percentage of Portfolio
Consumer real estate:
First mortgage lien	$	6,489	0.33	%	$	10,248	0.46	%
Junior lien	696		0.03		1,519		0.05
Total consumer real estate	7,185		0.16		11,767		0.23
Commercial	258		0.01		1		—
Leasing and equipment finance	6,086		0.14		2,292		0.06
Inventory finance	210		0.01		118		0.01
Auto finance	5,415		0.20		3,573		0.14
Other	8		0.06		20		0.13
Subtotal	19,162		0.11		17,771		0.11
Delinquencies in acquired portfolios	1,400		0.48		1,318		0.41
Total	$	20,562	0.12		$	19,089	0.11

Loan Modifications  The following table provides a summary of accruing troubled debt restructuring ("TDR") loans:

(Dollars in thousands)	At September 30, 2016			December 31, 2015
Consumer real estate	$	101,911		$	106,787
Commercial	21,484			24,731
Leasing and equipment finance	4,347			2,904
Inventory finance	—			51
Auto finance	1,976			799
Other	8			11
Total	$	129,726		$	135,283
Over 60-day delinquency as a percentage of total accruing TDR loans	0.86		%	1.54		%

Accruing TDR loans at September 30, 2016decreased $5.6 million, or 4.1%, from December 31, 2015, primarily due to the improved credit quality in the consumer real estate and commercial portfolios and continued strong customer payment performance in the consumer real estate portfolio.

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TCF modifies loans through reductions in interest rates, extension of payment dates, term extensions or term extensions with a reduction of contractual payments, but generally not through reductions of principal.

Loan modifications to borrowers who have not been granted concessions are not included in the table above. Loan modifications to troubled borrowers are not reported as TDR loans in the calendar years after modification if the loans were modified to an interest rate equal to or greater than the yields of new loan originations with comparable risk at the time of restructuring and if the loan is performing based on the restructured terms; however, these loans are still considered impaired and follow TCF's impaired loan reserve policies.

TCF typically reduces a consumer real estate customer's contractual payments by reducing the interest rate by an amount appropriate for the borrower's financial condition. Loans discharged in Chapter 7 bankruptcy where the borrower did not reaffirm the debt are reported as non-accrual TDR loans upon discharge as a result of the removal of the borrower's personal liability on the loan. These loans may return to accrual status when TCF expects full repayment of the remaining pre-discharged contractual principal and interest. Although loans classified as TDR loans are considered impaired, TCF received more than 63.0% and 62.0% of the original contractual interest due on accruing consumer real estate TDR loans during the third quarter and first nine months of 2016, respectively, yielding 4.3% and 4.2%, by modifying the loans to qualified customers instead of foreclosing on the property.

Commercial loans modified when on non-accrual status continue to be reported as non-accrual loans until there is sustained repayment performance for a reasonable period of at least six consecutive months. At September 30, 2016, 79.8% of total commercial TDR loans were accruing and TCF recognized more than 92.0% and 91.0% of the original contractual interest due on accruing commercial TDR loans during the third quarter and first nine months of 2016, respectively. At September 30, 2016, collection of principal and interest under the modified terms was reasonably assured on all accruing commercial TDR loans.

TCF previously utilized a multiple note structure as a workout alternative for certain commercial loans, which restructured a troubled loan into two notes. When utilizing this multiple note structure, the first note was always classified as a TDR loan. Under TCF policy, the first note was established at an amount and with market terms that provide reasonable assurance of payment and performance. If the loan was modified at an interest rate equal to the yield of a new loan originated with comparable risk at the time of restructuring and the loan is performing based on the terms of the restructuring agreement, this note may be removed from TDR loan classification in the calendar year after modification. This note is reported on accrual status if the loan has been formally restructured so as to be reasonably assured of payment and performance according to its modified terms. This evaluation includes consideration of the customer's payment performance for a reasonable period of at least six consecutive months, which may include time prior to the restructuring, before the loan is returned to accrual status. The second note is charged-off. This second note is a separate and distinct legal contract and is still outstanding. Should the borrower's financial position improve, the loan may become recoverable. At September 30, 2016, one TDR loan restructured as multiple notes with a combined total contractual balance of $9.9 million and a remaining book balance of $9.4 million is included in the preceding table.

See Note 5, Allowance for Loan and Lease Losses and Credit Quality Information of Notes to Consolidated Financial Statements for additional information regarding TCF's loan modifications.

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Non-accrual Loans and Leases and Other Real Estate Owned  The following table summarizes TCF's non-accrual loans and leases and other real estate owned:

(Dollars in thousands)	At September 30, 2016			At December 31, 2015
Consumer real estate:
First mortgage lien	$	113,239		$	124,156
Junior lien	46,179			44,113
Total consumer real estate	159,418			168,269
Commercial:
Commercial real estate	5,593			6,737
Commercial business	3,589			3,588
Total commercial	9,182			10,325
Leasing and equipment finance	12,288			11,262
Inventory finance	1,573			1,098
Auto finance	7,581			9,509
Other	5			3
Total non-accrual loans and leases	190,047			200,466
Other real estate owned	33,712			49,982
Total non-accrual loans and leases and other real estate owned	$	223,759		$	250,448
Non-accrual loans and leases as a percentage of total loans and leases	1.09		%	1.15		%
Non-accrual loans and leases and other real estate owned as a percentage of total loans and leases and other real estate owned	1.28			1.43
Allowance for loan and lease losses as a percentage of non-accrual loans and leases	82.00			77.85

Non-accrual loans and leases at September 30, 2016decreased $10.4 million, or 5.2%, from December 31, 2015, primarily due to improving credit quality trends in the consumer real estate portfolio.

The following table summarizes TCF's non-accrual TDR loans included in the table above:

(In thousands)	At September 30, 2016		At December 31, 2015
Consumer real estate	$	75,821	$	79,055
Commercial	5,435		7,016
Leasing and equipment finance	642		641
Inventory finance	312		172
Auto finance	6,065		8,440
Total	$	88,275	$	95,324

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Consumer real estate loans are generally placed on non-accrual status once they become 90 days past due and are charged-off to the estimated fair value of underlying collateral, less estimated selling costs, no later than 150 days past due. Delinquent consumer real estate junior lien loans are also placed on non-accrual status when there is evidence that the related third-party first lien mortgage may be 90 or more days past due, or foreclosure, charge-off or collection action has been initiated. Commercial loans are generally placed on non-accrual status once they become 90 days past due unless they are well secured and in the process of collection. Regardless of whether contractual principal and interest payments are well secured, equipment finance loans that are 90 or more days past due are generally placed on non-accrual status. Auto loans will be charged-off in full no later than 120 days past due, unless repossession is reasonably assured and in process, in which case the loan would be charged-off to the fair value of the collateral, less estimated selling costs. Auto loans in bankruptcy status may be placed on non-accrual status or partially charged-off to the fair value of the collateral prior to 120 days past due based on specific criteria. TDR loans are placed on non-accrual status prior to the past due thresholds outlined above if repayment under the modified terms is not likely after performing a well-documented credit analysis. Any necessary additional reserves are established for commercial loans, leasing and equipment finance loans and leases, and inventory finance loans when reported as non-accrual. Loans on non-accrual status are generally reported as non-accrual loans until there is sustained repayment performance for six consecutive months, with the exception of loans not reaffirmed upon discharge under Chapter 7 bankruptcy which remain on non-accrual status until a well-documented credit analysis indicates full repayment of the remaining pre-discharged contractual principal and interest is likely. Most of TCF's non-accrual loans and past due loans are secured by real estate. Given the nature of these assets and the related mortgage foreclosure, property sale and, if applicable, mortgage insurance claims processes, it can take 18 months or longer for a loan to migrate from initial delinquency to final disposition. This resolution process generally takes much longer for loans secured by real estate than for unsecured loans or loans secured by other property primarily due to state real estate foreclosure laws.

Changes in the amount of non-accrual loans and leases for the three and nine months ended September 30, 2016 are summarized in the following tables:

	At or For the Three Months Ended September 30, 2016
(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
Balance, beginning of period	$	163,589		$	9,822		$	13,156		$	645		$	8,327		$	3		$	195,542
Additions	19,981			—			4,122			3,134			1,366			94			28,697
(Charge-offs) recoveries	(2,707		)	2			(1,740		)	(280		)	(871		)	(74		)	(5,670		)
Transfers to other assets	(10,226		)	—			(1,228		)	—			(233		)	—			(11,687		)
Return to accrual status	(4,170		)	—			(1,013		)	(264		)	—			—			(5,447		)
Payments received	(6,942		)	(3,211		)	(1,009		)	(1,657		)	(1,008		)	(18		)	(13,845		)
Other, net	(107		)	2,569			—			(5		)	—			—			2,457
Balance, end of period	$	159,418		$	9,182		$	12,288		$	1,573		$	7,581		$	5		$	190,047

	At or For the Nine Months Ended September 30, 2016
(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
Balance, beginning of period	$	168,269		$	10,325		$	11,262		$	1,098		$	9,509		$	3		$	200,466
Additions	70,108			5,325			15,985			6,256			4,181			151			102,006
(Charge-offs) recoveries	(10,468		)	(646		)	(4,070		)	(1,156		)	(2,139		)	(102		)	(18,581		)
Transfers to other assets	(30,004		)	—			(3,203		)	(166		)	(966		)	—			(34,339		)
Return to accrual status	(17,027		)	—			(1,966		)	(839		)	—			—			(19,832		)
Payments received	(21,282		)	(13,451		)	(5,720		)	(3,725		)	(2,945		)	(47		)	(47,170		)
Sales	—			(900		)	—			—			—			—			(900		)
Other, net	(178		)	8,529			—			105			(59		)	—			8,397
Balance, end of period	$	159,418		$	9,182		$	12,288		$	1,573		$	7,581		$	5		$	190,047

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Loan Credit Classifications TCF assesses the risk of its loan and lease portfolio utilizing numerous risk characteristics as outlined in the previous sections. Loan credit classifications are an additional characteristic that is closely monitored in the overall credit risk process. Loan credit classifications are derived from standard regulatory rating definitions, which include: accruing non-classified (pass and special mention) and accruing classified (substandard and doubtful). Accruing classified loans and leases have well-defined weaknesses, but may never become non-accrual or result in a loss.

The following tables summarize accruing loans and leases by portfolio and regulatory classification and non-accrual loans and leases by portfolio:

	At September 30, 2016
	Accruing Non-classified						Accruing Classified						Total Accruing			Total Non-accrual			Total Loans and Leases
(Dollars in thousands)	Pass			Special Mention			Substandard			Doubtful
Consumer real estate	$	4,767,057		$	47,218		$	13,631		$	—		$	4,827,906		$	159,418		$	4,987,324
Commercial	3,059,374			46,394			35,249			—			3,141,017			9,182			3,150,199
Leasing and equipment finance	4,173,242			25,748			24,946			—			4,223,936			12,288			4,236,224
Inventory finance	2,002,714			126,579			130,220			—			2,259,513			1,573			2,261,086
Auto finance	2,715,690			184			8,445			—			2,724,319			7,581			2,731,900
Other	17,872			—			9			—			17,881			5			17,886
Total loans and leases	$	16,735,949		$	246,123		$	212,500		$	—		$	17,194,572		$	190,047		$	17,384,619
Percent of total loans and leases	96.3		%	1.4		%	1.2		%	—		%	98.9		%	1.1		%	100.0		%

	At December 31, 2015
	Accruing Non-classified						Accruing Classified						Total Accruing			Total Non-accrual			Total Loans and Leases
(Dollars in thousands)	Pass			Special Mention			Substandard			Doubtful
Consumer real estate	$	5,210,975		$	62,722		$	22,306		$	—		$	5,296,003		$	168,269		$	5,464,272
Commercial	3,035,320			65,382			34,805			—			3,135,507			10,325			3,145,832
Leasing and equipment finance	3,969,191			19,806			11,989			—			4,000,986			11,262			4,012,248
Inventory finance	1,887,505			138,945			119,206			—			2,145,656			1,098			2,146,754
Auto finance	2,632,589			—			5,498			—			2,638,087			9,509			2,647,596
Other	19,274			—			20			—			19,294			3			19,297
Total loans and leases	$	16,754,854		$	286,855		$	193,824		$	—		$	17,235,533		$	200,466		$	17,435,999
Percent of total loans and leases	96.1		%	1.7		%	1.1		%	—		%	98.9		%	1.1		%	100.0		%

The combined balance of accruing classified loans and leases and non-accrual loans and leases was $402.5 million at September 30, 2016, an increase of $8.3 million from December 31, 2015, primarily due to an increase in leasing and equipment finance and inventory finance classified loans, partially offset by a decrease in consumer real estate classified loans. Non-accrual loans and leases at September 30, 2016decreased $10.4 million from December 31, 2015, primarily due to improving credit quality trends in the consumer real estate portfolio.

Allowance for Loan and Lease Losses  The determination of the allowance for loan and lease losses is a critical accounting estimate. TCF's evaluation of incurred losses is based upon historical loss rates multiplied by the respective portfolio's loss emergence period. Factors utilized in the determination of the amount of the allowance include historical trends in loss rates, a portfolio's overall risk characteristics, changes in its character or size, risk rating migration, delinquencies, collateral values, economic outlook and prevailing economic conditions. The various factors used in the methodologies are reviewed on a periodic basis.

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The Company considers the allowance for loan and lease losses of $155.8 millionappropriate to cover losses incurred in the loan and lease portfolios at September 30, 2016. However, no assurance can be given that TCF will not, in any particular period, sustain loan and lease losses that are sizable in relation to the amount reserved or will not require significant changes in the balance of the allowance for loan and lease losses due to subsequent evaluations of the loan and lease portfolios, in light of factors then prevailing, including economic conditions, information obtained during TCF's ongoing credit review process or regulatory requirements. Among other factors, an economic slowdown, increasing levels of unemployment and/or a decline in collateral values may have an adverse impact on the current adequacy of the allowance for loan and lease losses by increasing credit risk and the risk of potential loss.

The total allowance for loan and lease losses is generally available to absorb losses from any segment of the portfolio. The allocation of TCF's allowance for loan and lease losses disclosed in the following table is subject to change based on changes in the criteria used to evaluate the allowance and is not necessarily indicative of the trend of future losses in any particular portfolio.

In conjunction with Note 5, Allowance for Loan and Lease Losses and Credit Quality Information of Notes to Consolidated Financial Statements, the following table includes detailed information regarding TCF's allowance for loan and lease losses.

	At September 30, 2016				At December 31, 2015
(Dollars in thousands)	Credit Loss Reserves		Percentage of Portfolio		Credit Loss Reserves		Percentage of Portfolio
Consumer real estate:
First mortgage lien	$	36,005	1.56	%	$	36,888	1.41	%
Junior lien	26,087		0.98		31,104		1.10
Consumer real estate	62,092		1.24		67,992		1.24
Commercial:
Commercial real estate	22,140		0.88		22,215		0.86
Commercial business	9,508		1.50		7,970		1.44
Total commercial	31,648		1.00		30,185		0.96
Leasing and equipment finance	20,649		0.49		19,018		0.47
Inventory finance	11,807		0.52		11,128		0.52
Auto finance	29,115		1.07		26,486		1.00
Other	530		2.96		1,245		6.45
Total allowance for loan and lease losses	155,841		0.90		156,054		0.90
Other credit loss reserves:
Reserves for unfunded commitments	1,018		N.A.		1,044		N.A.
Total credit loss reserves	$	156,859	0.90		$	157,098	0.90

N.A. Not Applicable.

Other Real Estate Owned and Repossessed and Returned Assets  Other real estate owned and repossessed and returned assets are summarized in the following table:

(In thousands)	At September 30, 2016		At December 31, 2015
Other real estate owned:(1)
Consumer real estate	$	26,785	$	42,912
Commercial real estate	6,927		7,070
Total other real estate owned	33,712		49,982
Repossessed and returned assets	8,831		7,969
Total other real estate owned and repossessed and returned assets	$	42,543	$	57,951

(1)  Includes properties owned and foreclosed properties subject to redemption.

Total consumer real estate properties reported in other real estate owned included 179 owned properties and 68 foreclosed properties subject to redemption at September 30, 2016, compared with 297 and 113, respectively, at December 31, 2015. The decrease in owned properties resulted from the sales of 443 properties, partially offset by the addition of 325 properties. The average length of time to sell consumer real estate properties during the third quarters of 2016 and 2015 was approximately 6.9 months and 5.9 months, respectively, from the date the properties were transferred to other real estate owned. Consumer real estate loans in process of foreclosure were valued at $38.0 million and $44.5 million at September 30, 2016 and December 31, 2015, respectively.

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The changes in the amount of other real estate owned for the third quarter and first nine months of 2016 are summarized in the following tables:

	At or For the Three Months Ended September 30, 2016
(In thousands)	Consumer			Commercial			Total
Balance, beginning of period	$	29,190		$	7,602		$	36,792
Transferred in, net of charge-offs	10,124			—			10,124
Sales	(11,366		)	(1,631		)	(12,997		)
Write-downs	(1,912		)	(72		)	(1,984		)
Other, net	749			1,028			1,777
Balance, end of period	$	26,785		$	6,927		$	33,712
	At or For the Nine Months Ended September 30, 2016
(In thousands)	Consumer			Commercial			Total
Balance, beginning of period	$	42,912		$	7,070		$	49,982
Transferred in, net of charge-offs	30,360			—			30,360
Sales	(42,861		)	(5,079		)	(47,940		)
Write-downs	(5,984		)	(771		)	(6,755		)
Other, net	2,358			5,707			8,065
Balance, end of period	$	26,785		$	6,927		$	33,712

Liquidity Management TCF manages its liquidity to ensure that the funding needs of depositors and borrowers are met both promptly and in a cost-effective manner. Asset liquidity arises from the ability to convert assets to cash as well as from the maturity of assets. Liability liquidity results from the ability of TCF to maintain a diverse set of funding sources to promptly meet funding requirements.

TCF Bank had $327.7 million and $538.7 million of net liquidity qualifying interest-bearing deposits at the Federal Reserve Bank at September 30, 2016 and December 31, 2015, respectively. Interest-bearing deposits held at the Federal Reserve Bank and unencumbered U.S. Government sponsored enterprises and federal agencies mortgage-backed securities were $1.3 billion at both September 30, 2016 and December 31, 2015. In addition, TCF held unencumbered obligations of states and political subdivisions totaling $614.5 million and $266.9 million at September 30, 2016 and December 31, 2015, respectively.

Deposits are the primary source of TCF's funds for use in lending and for other general business purposes. In addition to deposits, TCF derives funds from loan and lease repayments, loan sales and securitizations, and borrowings. Lending activities, such as loan originations and purchases and equipment purchases for lease financing, are the primary uses of TCF's funds.

The primary source of funding for TCF Commercial Finance Canada, Inc. ("TCFCFC") is a line of credit with TCF Bank. TCFCFC also maintains a $20.0 million Canadian dollar-denominated line of credit facility with a counterparty, which is guaranteed by TCF Bank. The TCFCFC line of credit with the counterparty was unused at both September 30, 2016andDecember 31, 2015.

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Deposits  Deposits totaled $17.2 billion at September 30, 2016, an increase of 3.1% from December 31, 2015, primarily due to special campaigns for certificates of deposit. Certificates of deposit totaled $4.3 billion at September 30, 2016, compared with $3.9 billion at December 31, 2015.

Non-interest bearing checking accounts represented 19.4% of total deposits at September 30, 2016, compared with 19.1% at December 31, 2015. TCF's weighted-average rate for deposits, including non-interest bearing deposits, was 0.36% at September 30, 2016, compared with 0.30% at December 31, 2015. The increase was primarily due to increased average interest rates resulting from promotions for certificates of deposit.

Checking, savings and certain money market deposits are an important source of low or no interest cost funds for TCF. The average balance of these types of deposits was $10.6 billion for both the third quarter and first nine months of 2016, compared with $10.0 billion for the same periods in 2015. These deposits comprised 61.9% and 62.1% of total average deposits for the third quarter and first nine months of 2016, respectively, compared with 62.4% and 63.3% of total average deposits for the same periods in 2015.

Borrowings  Borrowings totaled $0.7 billion and $1.0 billion at September 30, 2016 and December 31, 2015, respectively. Historically, TCF has borrowed primarily from the Federal Home Loan Bank ("FHLB") of Des Moines, institutional sources under repurchase agreements and other sources. TCF had $2.3 billion of additional borrowing capacity at the FHLB of Des Moines at September 30, 2016, as well as access to the Federal Reserve Discount Window.

See Note 7, Short-term Borrowings and Note 8, Long-term Borrowings of Notes to Consolidated Financial Statements for additional information regarding TCF's borrowings.

Capital Management  TCF is committed to managing capital to maintain protection for depositors and creditors. TCF employs a variety of capital management tools to achieve its capital goals, including, but not limited to, dividends, public offerings of preferred and common stock, common stock repurchases and the issuance or redemption of subordinated debt and other capital instruments. TCF maintains a Capital Planning and Dividend Policy which applies to TCF Financial and incorporates TCF Bank's Capital Planning and Dividend Policy. These policies ensure that capital strategy actions, including the addition of new capital, if needed, common stock repurchases, or the declaration of preferred stock, common stock and bank dividends are prudent, efficient and provide value to TCF's stockholders, while ensuring that past and prospective earnings retention is consistent with TCF's capital needs, asset quality and overall financial condition. TCF and TCF Bank manage their capital levels to exceed all regulatory capital requirements, which were exceeded at September 30, 2016 and December 31, 2015. See Note 9, Regulatory Capital Requirements of Notes to Consolidated Financial Statements.

Preferred Stock  At September 30, 2016, there were 6,900,000 depositary shares outstanding, each representing a 1/1,000^th interest in a share of the Series A Non-Cumulative Perpetual Preferred Stock of TCF Financial Corporation, par value $.01 per share, with a liquidation preference of $25,000 per share (equivalent to $25 per depositary share) (the "Series A Preferred Stock"). Dividends are payable on the Series A Preferred Stock if, as and when declared by TCF's Board of Directors on a non-cumulative basis on March 1, June 1, September 1 and December 1 of each year at a per annum rate of 7.5%. The Series A Preferred Stock may be redeemed at TCF's option in whole or in part on or after June 25, 2017. At September 30, 2016, there were 4,000,000 shares outstanding of the 6.45% Series B Non-Cumulative Perpetual Preferred Stock of TCF Financial Corporation, par value $.01 per share, with a liquidation preference of $25 per share (the "Series B Preferred Stock"). Dividends are payable on the Series B Preferred Stock if, as and when declared by TCF's Board of Directors on a non-cumulative basis on March 1, June 1, September 1 and December 1 of each year at a per annum rate of 6.45%. The Series B Preferred Stock may be redeemed at TCF's option in whole or in part on or after December 19, 2017.

Equity  Total equity at September 30, 2016 was $2.5 billion, or 11.63% of total assets, compared with $2.3 billion, or 11.15% of total assets, at December 31, 2015. Dividends to common stockholders on a per share basis totaled 7.5 cents for the third quarter of 2016, an increase of 50% from a per share basis of 5 cents for the third quarter of 2015. TCF's common dividend payout ratio for the third quarters of 2016 and 2015 was 24.2% and 17.2%, respectively. TCF Financial's primary funding sources for dividends are earnings and dividends received from TCF Bank.

At September 30, 2016, TCF had 5.4 million shares remaining in its stock repurchase program authorized by its Board of Directors, which has no expiration. Prior consultation with the Federal Reserve is required before TCF could repurchase any shares of its common stock.

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Common equity at September 30, 2016 was $2.2 billion, or 10.29% of total assets, compared with $2.0 billion, or 9.80% of total assets, at December 31, 2015. Tangible common equity at September 30, 2016 was $1.9 billion, or 9.31% of total tangible assets, compared with $1.8 billion, or 8.79% of total tangible assets, at December 31, 2015. Tangible common equity is not a financial measure recognized under generally accepted accounting principles in the United States ("GAAP") (i.e., non-GAAP). Tangible common equity represents total equity less preferred stock, goodwill, other intangible assets and non-controlling interest in subsidiaries. Tangible assets represent total assets less goodwill and other intangible assets. When evaluating capital adequacy and utilization, management considers financial measures such as tangible common equity to tangible assets. This non-GAAP financial measure is viewed by management as a useful indicator of capital levels available to withstand unexpected market or economic conditions and also provide investors, regulators and other users with information to be viewed in relation to other banking institutions.

The following table includes reconciliations of the non-GAAP financial measures of tangible common equity and tangible assets to the GAAP measures of total equity and total assets, respectively:

(Dollars in thousands)		At September 30, 2016			At December 31, 2015
Computation of tangible common equity to tangible assets:
Total equity		$	2,452,380		$	2,306,917
Less: Non-controlling interest in subsidiaries		18,926			16,001
Total TCF Financial Corporation stockholders' equity		2,433,454			2,290,916
Less: Preferred stock		263,240			263,240
Total common stockholders' equity	(a)	2,170,214			2,027,676
Less:
Goodwill		225,640			225,640
Other intangibles(1)		2,028			3,126
Tangible common equity	(b)	$	1,942,546		$	1,798,910
Total assets	(c)	$	21,084,156		$	20,689,609
Less:
Goodwill		225,640			225,640
Other intangibles(1)		2,028			3,126
Tangible assets	(d)	$	20,856,488		$	20,460,843
Common equity to assets	(a) / (c)	10.29		%	9.80		%
Tangible common equity to tangible assets	(b) / (d)	9.31		%	8.79		%

(1) Includes non-mortgage servicing assets.

Recent Accounting Developments

In August 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice in how certain types of cash receipts and cash payments are presented in the statement of cash flows. The adoption of this ASU will be required on a retrospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2018. Early adoption is allowed. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which changes the impairment model for most financial assets, including trade and other receivables, held to maturity debt securities, loans and purchased financial assets with credit deterioration. The adoption of this ASU will be required on a modified retrospective basis with a cumulative-effect adjustment required beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2020. Early adoption is allowed. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

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In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which simplifies several aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The most significant change made will be the recognition of all excess tax benefits and deficiencies as income tax expense or benefit in the statement of income. Certain amendments in the ASU will be required to be applied on a prospective basis and others will be required to be applied on a retrospective basis. This ASU is effective beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2017. Early adoption is allowed. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-07, Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting, which eliminates the requirement to retrospectively apply the equity method in previous periods when an investor initially obtains significant influence over the investee. The adoption of this ASU will be required on a prospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2017. Early adoption is allowed. The adoption of this ASU is not expected to have a material impact on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments, which clarifies the requirements for assessing whether contingent put and call options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. The adoption of this ASU will be required on a modified retrospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2017. Early adoption is allowed. The adoption of this ASU is not expected to have a material impact on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-05, Derivatives and Hedging (Topic 815): Effects of Derivative Contract Novations on Existing Hedge Accounting Relationships, which clarifies that the novation of a derivative contract in a hedge accounting relationship does not, in and of itself, require dedesignation of that hedge accounting relationship. The adoption of this ASU will be required on a prospective or modified retrospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2017. Early adoption is allowed. The adoption of this ASU will not have a material impact on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-04, Liabilities - Extinguishment of Liabilities (Subtopic 405-20): Recognition of Breakage for Certain Prepaid Stored-Value Products, which requires issuers of prepaid stored-value products redeemable for goods, services or cash at third-party merchants to derecognize liabilities related to those products for breakage. The adoption of this ASU will be required on a retrospective or modified retrospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2018. Early adoption is allowed. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which, among other amendments, requires lessees to recognize most leases on their balance sheet. Lessor accounting is largely unchanged. The ASU requires both quantitative and qualitative disclosure regarding key information about leasing arrangements from both lessees and lessors. The adoption of this ASU will be required on a modified retrospective basis beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2019. Early adoption is allowed. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which amends the classification and measurement of investments in equity securities, simplifies the impairment analysis of equity investments without readily determinable fair values, requires separate presentation of certain fair value changes for financial liabilities measured at fair value and eliminates certain disclosure requirements associated with the fair value of financial instruments. The adoption of this ASU will be required on a prospective basis with a cumulative-effect adjustment required beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2018. With limited exceptions, early adoption is prohibited. The adoption of this ASU will not have a material impact on our consolidated financial statements.

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In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which requires revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which delays the effective date of the new revenue recognition requirements in ASU No. 2014-09 by one year. In March 2016, the FASB issued ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies how an entity should identify the unit of accounting for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements by explaining what a principal controls before the specified good or service is transferred to the customer. In April 2016, the FASB issued ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which amends the guidance for identifying performance obligations and accounting for a license which grants the right to use intellectual property. In May 2016, the FASB issued ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements, which provides narrow-scope improvements to transition, collectability, noncash consideration and the presentation of sales and other similar taxes. The adoption of these ASUs will be required using one of two retrospective application methods beginning with TCF’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2018. Management is currently evaluating the potential impact of this guidance on our consolidated financial statements.

Legislative and Regulatory Developments

Federal and state legislation impose numerous legal and regulatory requirements on financial institutions. Future legislative or regulatory change, or changes in enforcement practices or court rulings, may have a dramatic and potentially adverse impact on TCF.

Cautionary Statements for Purposes of the Safe Harbor Provisions of the Securities Litigation Reform Act

Any statements contained in this Quarterly Report on Form 10-Q regarding the outlook for the Company's businesses and their respective markets, such as projections of future performance, guidance, statements of the Company's plans and objectives, forecasts of market trends and other matters, are forward-looking statements based on the Company's assumptions and beliefs. Such statements may be identified by such words or phrases as "will likely result," "are expected to," "will continue," "outlook," "will benefit," "is anticipated," "estimate," "project," "management believes" or similar expressions. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those discussed in such statements and no assurance can be given that the results in any forward-looking statement will be achieved. For these statements, TCF claims the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Any forward-looking statement speaks only as of the date on which it is made and we disclaim any obligation to subsequently revise any forward-looking statement to reflect events or circumstances after such date or to reflect the occurrence of anticipated or unanticipated events.

Certain factors could cause the Company's future results to differ materially from those expressed or implied in any forward-looking statements contained herein. These factors include the factors discussed in Part I, Item 1A of the Company's Annual Report on Form 10-K for the year ended December 31, 2015 under the heading "Risk Factors", the factors discussed below and any other cautionary statements, written or oral, which may be made or referred to in connection with any such forward-looking statements. Since it is not possible to foresee all such factors, these factors should not be considered as complete or exhaustive.

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Adverse Economic or Business Conditions; Competitive Conditions; Credit and Other Risks.  Deterioration in general economic and banking industry conditions, including those arising from government shutdowns, defaults, anticipated defaults or rating agency downgrades of sovereign debt (including debt of the U.S.), or increases in unemployment; adverse economic, business and competitive developments such as shrinking interest margins, reduced demand for financial services and loan and lease products, deposit outflows, increased deposit costs due to competition for deposit growth and evolving payment system developments, deposit account attrition or an inability to increase the number of deposit accounts; customers completing financial transactions without using a bank; adverse changes in credit quality and other risks posed by TCF's loan, lease, investment, securities held to maturity and securities available for sale portfolios, including declines in commercial or residential real estate values, changes in the allowance for loan and lease losses dictated by new market conditions or regulatory requirements, or the inability of home equity line borrowers to make increased payments caused by increased interest rates or amortization of principal; deviations from estimates of prepayment rates and fluctuations in interest rates that result in decreases in the value of assets such as interest-only strips that arise in connection with TCF's loan sales activity; interest rate risks resulting from fluctuations in prevailing interest rates or other factors that result in a mismatch between yields earned on TCF's interest-earning assets and the rates paid on its deposits and borrowings; foreign currency exchange risks; counterparty risk, including the risk of defaults by our counterparties or diminished availability of counterparties who satisfy our credit quality requirements; decreases in demand for the types of equipment that TCF leases or finances; the effect of any negative publicity.

Legislative and Regulatory Requirements.  New consumer protection and supervisory requirements and regulations, including those resulting from action by the Consumer Financial Protection Bureau and changes in the scope of Federal preemption of state laws that could be applied to national banks and their subsidiaries; the imposition of requirements that adversely impact TCF's deposit, lending, loan collection and other business activities such as mortgage foreclosure moratorium laws, further regulation of financial institution campus banking programs, use by municipalities of eminent domain on property securing troubled residential mortgage loans, or imposition of underwriting or other limitations that impact the ability to offer certain variable-rate products; changes affecting customer account charges and fee income, including changes to interchange rates; regulatory actions or changes in customer opt-in preferences with respect to overdrafts, which may have an adverse impact on TCF; changes to bankruptcy laws which would result in the loss of all or part of TCF's security interest due to collateral value declines; deficiencies in TCF's compliance under the Bank Secrecy Act in past or future periods, which may result in regulatory enforcement action including monetary penalties; increased health care costs resulting from Federal health care reform; regulatory criticism and resulting enforcement actions or other adverse consequences such as increased capital requirements, higher deposit insurance assessments or monetary damages or penalties; heightened regulatory practices, requirements or expectations, including, but not limited to, requirements related to enterprise risk management, the Bank Secrecy Act and anti-money laundering compliance activity.

Earnings/Capital Risks and Constraints, Liquidity Risks.  Limitations on TCF's ability to pay dividends or to increase dividends because of financial performance deterioration, regulatory restrictions or limitations; increased deposit insurance premiums, special assessments or other costs related to adverse conditions in the banking industry; the impact on banks of regulatory reform, including additional capital, leverage, liquidity and risk management requirements or changes in the composition of qualifying regulatory capital; adverse changes in securities markets directly or indirectly affecting TCF's ability to sell assets or to fund its operations; diminished unsecured borrowing capacity resulting from TCF credit rating downgrades or unfavorable conditions in the credit markets that restrict or limit various funding sources; costs associated with new regulatory requirements or interpretive guidance relating to liquidity; uncertainties relating to future retail deposit account changes, including limitations on TCF's ability to predict customer behavior and the impact on TCF's fee revenues.

Branching Risk; Growth Risks.  Adverse developments affecting TCF's supermarket banking relationships or any of the supermarket chains in which TCF maintains supermarket branches; costs related to closing underperforming branches; inability to timely close underperforming branches due to long-term lease obligations; slower than anticipated growth in existing or acquired businesses; inability to successfully execute on TCF's growth strategy through acquisitions or cross-selling opportunities; failure to expand or diversify TCF's balance sheet through new or expanded programs or opportunities; failure to successfully attract and retain new customers, including the failure to attract and retain manufacturers and dealers to expand the inventory finance business; failure to effectuate, and risks of claims related to, sales and securitizations of loans; risks related to new product additions and addition of distribution channels (or entry into new markets) for existing products.

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Technological and Operational Matters.  Technological or operational difficulties, loss or theft of information, cyber-attacks and other security breaches, counterparty failures and the possibility that deposit account losses (fraudulent checks, etc.) may increase; failure to keep pace with technological change, including the failure to develop and maintain technology necessary to satisfy customer demands; ability to attract and retain employees given competitive conditions.

Litigation Risks.  Results of litigation or government enforcement actions, including class action litigation or enforcement actions concerning TCF's lending or deposit activities, including account opening/origination, servicing practices, fees or charges, employment practices, or checking account overdraft program "opt in" requirements; and possible increases in indemnification obligations for certain litigation against Visa U.S.A.

Accounting, Audit, Tax and Insurance Matters.  Changes in accounting standards or interpretations of existing standards; federal or state monetary, fiscal or tax policies, including adoption of state legislation that would increase state taxes; ineffective internal controls; adverse federal, state or foreign tax assessments or findings in tax audits; lack of or inadequate insurance coverage for claims against TCF; potential for claims and legal action related to TCF's fiduciary responsibilities.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

TCF's results of operations depend to a large degree on its net interest income and its ability to manage interest rate risk. Although TCF manages other risks in the normal course of business, such as credit risk, liquidity risk, foreign currency risk and operational risk, the Company considers interest rate risk to be one of its more significant market risks. A mismatch between maturities, interest rate sensitivities and prepayment characteristics of assets and liabilities results in interest rate risk. TCF, like most financial institutions, has material interest rate risk exposure to changes in both short- and long-term interest rates, as well as variable interest rate indices (e.g., the prime rate or the London InterBank Offered Rate).

TCF's management Asset & Liability Committee ("ALCO") is responsible for reviewing the Company's interest rate sensitivity position and establishing policies to monitor and limit exposure to interest rate risk. ALCO manages TCF's interest rate risk based on interest rate expectations and other factors. The principal objective of TCF in managing its assets and liabilities is to provide maximum levels of net interest income and facilitate the funding needs of the Company, while maintaining acceptable levels of interest rate risk and liquidity risk.

ALCO primarily uses two interest rate risk tools with policy limits to evaluate TCF's interest rate risk: net interest income simulation and economic value of equity ("EVE") analysis. In addition, the interest rate gap is reviewed periodically to monitor asset and liability repricing over various time periods.

Management utilizes net interest income simulation models to estimate the near-term effects of changing interest rates on its net interest income. Net interest income simulation involves forecasting net interest income under a variety of scenarios, including the level of interest rates, the shape of the yield curve and the spreads between market interest rates. Management exercises its best judgment in making assumptions regarding events that management can influence, such as non-contractual deposit repricings and events outside management's control, such as consumer behavior on loan and deposit activity and the effect that competition has on both loan and deposit pricing. These assumptions are subjective and, as a result, net interest income simulation results will differ from actual results due to the timing, magnitude and frequency of interest rate changes, changes in market conditions, consumer behavior and management strategies, among other factors. TCF performs various sensitivity analyses on assumptions of new loan spreads, prepayment rates, basis risk, deposit attrition and deposit repricing.

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The following table presents changes in TCF's net interest income over a twelve month period if short- and long-term interest rates were to sustain an immediate increase of 100 basis points and 200 basis points. The impact of planned growth and new business activities is factored into the simulation model.

	Impact on Net Interest Income
(Dollars in millions)	September 30, 2016				December 31, 2015
Immediate Change in Interest Rates:
+200 basis points	$	100.0	11.6	%	$	93.9	11.1	%
+100 basis points	53.6		6.2		50.4		5.9

As of September 30, 2016, 57.4% of TCF's loan and lease balances are expected to reprice, amortize or prepay in the next 12 months and 61.9% of TCF's deposit balances are low cost or no cost deposits. TCF believes that the mix of assets repricing compared with low cost or no cost deposits positions TCF well for changing interest rates.

Management also uses EVE and interest rate gap analyses to measure risk in the balance sheet that might not be taken into account in the net interest income simulation analysis. Net interest income simulation highlights exposure over a relatively short time period, while EVE analysis incorporates all cash flows over the estimated remaining life of all balance sheet positions. The valuation of the balance sheet, at a point in time, is defined as the discounted present value of asset cash flows minus the discounted present value of liability cash flows. Interest rate gap is primarily the difference between interest-earning assets and interest-bearing liabilities repricing within a given period and represents the net asset or liability sensitivity at a point in time.

Item 4. Controls and Procedures

Disclosure Controls and Procedures  The Company carried out an evaluation, under the supervision and with the participation of the Company's management, including the Company's Chief Executive Officer (Principal Executive Officer), Chief Financial Officer (Principal Financial Officer) and Chief Accounting Officer (Principal Accounting Officer), of the effectiveness of the design and operation of the Company's disclosure controls and procedures pursuant to Rules 13a-15 and 15d-15 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Based upon that evaluation, management concluded that the Company's disclosure controls and procedures were effective as of September 30, 2016.

Disclosure controls and procedures are designed to ensure that information required to be disclosed by TCF in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. Disclosure controls are also designed with the objective of ensuring that such information is accumulated and communicated to the Company's management, including the Chief Executive Officer (Principal Executive Officer), Chief Financial Officer (Principal Financial Officer) and Chief Accounting Officer (Principal Accounting Officer), as appropriate, to allow for timely decisions regarding required disclosure. TCF's disclosure controls also include internal controls that are designed to provide reasonable assurance that transactions are properly authorized, assets are safeguarded against unauthorized or improper use and that transactions are properly recorded and reported.

Changes in Internal Control Over Financial Reporting  There were no changes to TCF's internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) during the quarter ended September 30, 2016, that materially affected, or are reasonably likely to materially affect, TCF's internal control over financial reporting.

61

Part II - Other Information

Item 1. Legal Proceedings

From time to time TCF is a party to legal proceedings arising out of its lending, leasing and deposit operations, including foreclosure proceedings and other collection actions as part of its lending and leasing collections activities. TCF may also be subject to regulatory examinations and enforcement actions brought by federal regulators, including the Securities and Exchange Commission, the Federal Reserve, the Office of the Comptroller of the Currency ("OCC") and the Consumer Financial Protection Bureau ("CFPB") and TCF's regulatory authorities may impose sanctions on TCF for failures related to regulatory compliance. From time to time borrowers and other customers, and employees and former employees have also brought actions against TCF, in some cases claiming substantial damages. TCF and other financial services companies are subject to the risk of class action litigation. Litigation is often unpredictable and the actual results of litigation cannot be determined and therefore the ultimate resolution of a matter and the possible range of loss associated with certain potential outcomes cannot be established. Except as discussed below, based on our current understanding of TCF's pending legal proceedings, management does not believe that judgments or settlements arising from pending or threatened legal matters, individually or in the aggregate, would have a material adverse effect on the consolidated financial position, operating results or cash flows of TCF.

On October 29, 2015, TCF received a Notice and Opportunity to Respond and Advise letter ("NORA Letter") from the CFPB notifying TCF that the CFPB's Office of Enforcement is considering recommending that the CFPB take legal action against TCF related to compliance with laws relating to unfair, deceptive and abusive acts and practices and Regulation E, §1005.17, in connection with TCF's practices in administering checking account overdraft program "opt-in" requirements. The purpose of a NORA Letter is to ensure that potential subjects of enforcement actions have the opportunity to present their positions to the CFPB before an enforcement action is recommended or commenced and TCF has provided the CFPB with a written statement setting forth the reasons of law and policy why it believes that the CFPB should not take action. TCF is in discussions with the CFPB and is seeking to reach an appropriate resolution of the matter. We are currently unable to predict the ultimate timing or outcome of this matter. There can be no assurance that the CFPB will not utilize its enforcement authority through settlement, administrative proceedings or litigation and seek remediation, disgorgement, penalties, other monetary relief, injunctive relief or changes to TCF's business practices or operations, which could have a material adverse effect on TCF.

Item 1A. Risk Factors

There were no material changes in risk factors for TCF in the quarter covered by this report. You should carefully consider the risks and risk factors included under Item 1A of the Company's Annual Report on Form 10-K for the year ended December 31, 2015. TCF's business, financial condition or results of operations could be materially adversely affected by any of these risks.

62

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table summarizes share repurchase activity for the quarter ended September 30, 2016:

Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plan	Maximum Number of Shares that May Yet be Purchased Under the Plan
July 1 to July 31, 2016
Share repurchase program(1)	—	$	—	—	5,384,130
Employee transactions(2)	1,148	$	12.47	N.A.	N.A.
August 1 to August 31, 2016
Share repurchase program(1)	—	$	—	—	5,384,130
Employee transactions(2)	8,649	$	13.63	N.A.	N.A.
September 1 to September 30, 2016
Share repurchase program(1)	—	$	—	—	5,384,130
Employee transactions(2)	—	$	—	N.A.	N.A.
Total
Share repurchase program(1)	—	$	—	—	5,384,130
Employee transactions(2)	9,797	$	13.50	N.A.	N.A.

 N.A. Not Applicable.

(1) The current share repurchase authorization was approved by the Board of Directors on April 14, 2007 and was announced in a press release dated April 16, 2007. The authorization was for a repurchase of up to an additional 5% of TCF's common stock outstanding at the time of the authorization, or 6.5 million shares. TCF has not repurchased shares since October 2007. Future repurchases will be based upon capital levels, growth expectations and market opportunities and may be subject to regulatory approval. The ability to repurchase shares in the future may be adversely affected by new legislation or regulations or by changes in regulatory policies. This authorization does not have an expiration date.

(2) Represents restricted stock withheld pursuant to the terms of awards granted on or prior to April 22, 2015 under the TCF Financial Incentive Stock Program to offset tax withholding obligations that occur upon vesting and release of restricted stock. The TCF Financial Incentive Stock Program provides that the value of shares withheld shall be the average of the high and low prices of common stock of TCF Financial Corporation on the date the relevant transaction occurs.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

Item 6. Exhibits

See Index to Exhibits on page 65 of this report.

63

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TCF FINANCIAL CORPORATION

/s/ Craig R. Dahl

Craig R. Dahl,

Vice Chairman, President and Chief Executive Officer

(Principal Executive Officer)

/s/ Brian W. Maass

Brian W. Maass,

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

/s/ Susan D. Bode

Susan D. Bode,

Senior Vice President and Chief Accounting Officer

(Principal Accounting Officer)

Dated: November 2, 2016

64

TCF FINANCIAL CORPORATION AND SUBSIDIARIES

Index to Exhibits for Form 10-Q

Exhibit Number	Description
3.1	Amended and Restated Bylaws [incorporated by reference to Exhibit 3.1 to TCF Financial Corporation's Current Report on Form 8-K filed on July 26, 2016 (No. 161784576)]
31.1#	Certification of the Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2#	Certification of the Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1#	Certification of the Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2#	Certification of the Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101#	Financial statements from the Quarterly Report on Form 10-Q of the Company for the period ended September 30, 2016, formatted in XBRL: (i) the Consolidated Statements of Financial Condition, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Consolidated Financial Statements

#  Filed herein

65

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Craig R. Dahl, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of TCF Financial Corporation for the quarter ended September 30, 2016;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2016

/s/ Craig R. Dahl

Craig R. Dahl

Vice Chairman, President and Chief Executive Officer

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Brian W. Maass, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of TCF Financial Corporation for the quarter ended September 30, 2016;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2016

/s/ Brian W. Maass

Brian W. Maass

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

TCF FINANCIAL CORPORATION

STATEMENT PURSUANT TO 18 U.S.C. §1350

I, Craig R. Dahl, Vice Chairman, President and Chief Executive Officer of TCF Financial Corporation, a Delaware corporation (the “Company”), hereby certify as follows:

1. This statement is provided pursuant to 18 U.S.C. § 1350 in connection with the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 (the “Periodic Report”);

2. The Periodic Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

3. The information contained in the Periodic Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods indicated therein.

Date: November 2, 2016

/s/ Craig R. Dahl

Craig R. Dahl

Vice Chairman, President and Chief Executive Officer

(Principal Executive Officer)

* A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to TCF Financial Corporation and will be retained by TCF Financial Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

TCF FINANCIAL CORPORATION

STATEMENT PURSUANT TO 18 U.S.C. §1350

I, Brian W. Maass, Executive Vice President and Chief Financial Officer of TCF Financial Corporation, a Delaware corporation (the “Company”), hereby certify as follows:

1. This statement is provided pursuant to 18 U.S.C. § 1350 in connection with the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 (the “Periodic Report”);

2. The Periodic Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

3. The information contained in the Periodic Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods indicated therein.

Date: November 2, 2016

/s/ Brian W. Maass

Brian W. Maass

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

* A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to TCF Financial Corporation and will be retained by TCF Financial Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 27, 2016
Document and Entity Information
Entity Registrant Name	TCF FINANCIAL CORP
Entity Central Index Key	0000814184
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		170,998,862

XML

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 656,481	$ 889,337
Investments	59,707	70,537
Securities held to maturity	185,230	201,920
Securities available for sale	1,419,821	888,885
Loans and leases held for sale	386,673	157,625
Consumer real estate:
First mortgage lien	2,313,044	2,624,956
Junior lien	2,674,280	2,839,316
Total consumer real estate	4,987,324	5,464,272
Commercial	3,150,199	3,145,832
Leasing and equipment finance	4,236,224	4,012,248
Inventory finance	2,261,086	2,146,754
Auto finance	2,731,900	2,647,596
Other	17,886	19,297
Total loans and leases	17,384,619	17,435,999
Allowance for loan and lease losses	(155,841)	(156,054)
Net loans and leases	17,228,778	17,279,945
Premises and equipment, net	424,456	445,934
Goodwill	225,640	225,640
Other assets	497,370	529,786
Total assets	21,084,156	20,689,609
Deposits:
Checking	5,830,057	5,690,559
Savings	4,670,281	4,717,457
Money market	2,450,576	2,408,180
Certificates of deposit	4,283,292	3,903,793
Total deposits	17,234,206	16,719,989
Short-term borrowings	1,514	5,381
Long-term borrowings	713,996	1,034,557
Total borrowings	715,510	1,039,938
Accrued expenses and other liabilities	682,060	622,765
Total liabilities	18,631,776	18,382,692
Equity:
Preferred stock, par value $0.01 per share, 30,000,000 shares authorized; 4,006,900 issued	263,240	263,240
Common stock, par value $0.01 per share, 280,000,000 shares authorized; 170,993,800 and 169,887,030 shares issued, respectively	1,710	1,699
Additional paid-in capital	860,487	851,836
Retained earnings, subject to certain restrictions	1,350,215	1,240,347
Accumulated other comprehensive income (loss)	6,895	(15,346)
Treasury stock at cost, 42,566 shares, and other	(49,093)	(50,860)
Total TCF Financial Corporation stockholders' equity	2,433,454	2,290,916
Non-controlling interest in subsidiaries	18,926	16,001
Total equity	2,452,380	2,306,917
Total liabilities and equity	$ 21,084,156	$ 20,689,609

XML

Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	30,000,000	30,000,000
Preferred stock, shares issued (shares)	4,006,900	4,006,900
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	280,000,000	280,000,000
Common stock, shares issued (shares)	170,993,800	169,887,030
Treasury stock at cost, shares (shares)	42,566	42,566

XML

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income:
Loans and leases	$ 210,765	$ 207,250	$ 639,698	$ 620,390
Securities available for sale	7,126	4,161	19,020	10,784
Securities held to maturity	1,049	1,361	3,484	4,150
Investments and other	13,786	10,832	36,870	31,155
Total interest income	232,726	223,604	699,072	666,479
Interest expense:
Deposits	15,851	12,302	46,735	34,454
Borrowings	4,857	6,032	15,677	17,306
Total interest expense	20,708	18,334	62,412	51,760
Net interest income	212,018	205,270	636,660	614,719
Provision for credit losses	13,894	10,018	45,986	35,337
Net interest income after provision for credit losses	198,124	195,252	590,674	579,382
Non-interest income:
Fees and service charges	35,093	36,991	102,532	107,258
Card revenue	13,747	13,803	41,193	40,606
ATM revenue	5,330	5,739	15,639	16,401
Subtotal	54,170	56,533	159,364	164,265
Gains on sales of auto loans, net	11,624	10,423	33,687	27,444
Gains on sales of consumer real estate loans, net	13,528	7,143	33,751	27,860
Servicing fee income	10,393	8,049	28,778	22,607
Subtotal	35,545	25,615	96,216	77,911
Leasing and equipment finance	28,289	27,165	87,850	75,774
Other	2,270	3,070	7,518	8,657
Fees and other revenue	120,274	112,383	350,948	326,607
Gains (losses) on securities, net	(600)	(131)	(716)	(268)
Total non-interest income	119,674	112,252	350,232	326,339
Non-interest expense:
Compensation and employee benefits	117,155	116,708	359,721	348,682
Occupancy and equipment	37,938	34,159	111,830	107,138
FDIC insurance	4,082	4,832	11,946	15,089
Advertising and marketing	5,488	5,793	17,053	17,466
Other	49,851	45,750	143,186	139,770
Subtotal	214,514	207,242	643,736	628,145
Operating lease depreciation	10,038	9,485	29,453	25,801
Foreclosed real estate and repossessed assets, net	4,243	5,680	11,298	18,253
Other credit costs, net	83	(123)	41	(39)
Total non-interest expense	228,878	222,284	684,528	672,160
Income before income tax expense	88,920	85,220	256,378	233,561
Income tax expense	30,257	30,528	86,766	82,258
Income after income tax expense	58,663	54,692	169,612	151,303
Income attributable to non-controlling interest	2,371	2,117	7,580	6,672
Net income attributable to TCF Financial Corporation	56,292	52,575	162,032	144,631
Preferred stock dividends	4,847	4,847	14,541	14,541
Net income available to common stockholders	$ 51,445	$ 47,728	$ 147,491	$ 130,090
Net income per common share:
Basic (in dollars per share)	$ 0.31	$ 0.29	$ 0.88	$ 0.79
Diluted (in dollars per share)	$ 0.31	$ 0.29	$ 0.88	$ 0.78

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income attributable to TCF Financial Corporation	$ 56,292	$ 52,575	$ 162,032	$ 144,631
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	(7,624)	9,972	32,639	2,971
Reclassification of net (gains) losses to net income	425	281	1,448	871
Net investment hedges:
Unrealized gains (losses) arising during the period	904	2,858	(2,691)	5,772
Foreign currency translation adjustment:
Unrealized gains (losses) arising during the period	(957)	(3,049)	2,791	(6,318)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(12)	(12)	(35)	(35)
Income tax (expense) benefit	2,396	(4,947)	(11,911)	(3,618)
Total other comprehensive income (loss)	(4,868)	5,103	22,241	(357)
Comprehensive income	$ 51,424	$ 57,678	$ 184,273	$ 144,274

XML

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	TCF Financial Corporation	Preferred Stock	TCF Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock and Other	Non-controlling Interests
Balance at Dec. 31, 2014	$ 2,135,364	$ 2,121,649	$ 263,240	$ 1,675	$ 817,130	$ 1,099,914	$ (10,910)	$ (49,400)	$ 13,715
Balance (in shares) at Dec. 31, 2014			4,006,900	167,503,568
Increase (Decrease) in Equity
Net income	151,303	144,631				144,631			6,672
Other comprehensive income (loss)	(357)	(357)					(357)
Net investment by (distribution to) non-controlling interest	(1,887)								(1,887)
Dividends on preferred stock	(14,541)	(14,541)				(14,541)
Dividends on common stock	(24,825)	(24,825)				(24,825)
Grants of restricted stock				$ 8	(8)
Grants of restricted stock (in shares)				753,054
Common shares purchased by TCF employee benefit plans	19,273	19,273		$ 12	19,261
Common shares purchased by TCF employee benefit plans (in shares)				1,219,012
Cancellation of shares of restricted stock	(541)	(541)		$ (1)	(540)
Cancellation of shares of restricted stock (in shares)				(133,822)
Cancellation of common shares for tax withholding	(1,094)	(1,094)		$ (1)	(1,093)
Cancellation of common shares for tax withholding (in shares)				(68,670)
Net amortization of stock compensation	7,520	7,520			7,520
Exercise of stock options	2,570	2,570		$ 2	2,568
Exercise of stock options (in shares)				200,000
Stock compensation tax (expense) benefit	362	362			362
Change in shares held in trust for deferred compensation plans, at cost					1,043			(1,043)
Balance at Sep. 30, 2015	2,273,147	2,254,647	$ 263,240	$ 1,695	846,243	1,205,179	(11,267)	(50,443)	18,500
Balance (in shares) at Sep. 30, 2015			4,006,900	169,473,142
Balance at Dec. 31, 2015	2,306,917	2,290,916	$ 263,240	$ 1,699	851,836	1,240,347	(15,346)	(50,860)	16,001
Balance (in shares) at Dec. 31, 2015			4,006,900	169,887,030
Increase (Decrease) in Equity
Net income	169,612	162,032				162,032			7,580
Other comprehensive income (loss)	22,241	22,241					22,241
Net investment by (distribution to) non-controlling interest	(4,655)								(4,655)
Dividends on preferred stock	(14,541)	(14,541)				(14,541)
Dividends on common stock	(37,623)	(37,623)				(37,623)
Grants of restricted stock				$ 9	(9)
Grants of restricted stock (in shares)				880,017
Common shares purchased by TCF employee benefit plans	5,838	5,838		$ 5	5,833
Common shares purchased by TCF employee benefit plans (in shares)				511,420
Cancellation of shares of restricted stock	(1,189)	(1,189)		$ (2)	(1,187)
Cancellation of shares of restricted stock (in shares)				(205,483)
Cancellation of common shares for tax withholding	(1,639)	(1,639)		$ (1)	(1,638)
Cancellation of common shares for tax withholding (in shares)				(129,355)
Net amortization of stock compensation	8,443	8,443			8,443
Exercise of stock options	(684)	(684)			(684)
Exercise of stock options (in shares)				50,171
Stock compensation tax (expense) benefit	(340)	(340)			(340)
Change in shares held in trust for deferred compensation plans, at cost					(1,767)			1,767
Balance at Sep. 30, 2016	$ 2,452,380	$ 2,433,454	$ 263,240	$ 1,710	$ 860,487	$ 1,350,215	$ 6,895	$ (49,093)	$ 18,926
Balance (in shares) at Sep. 30, 2016			4,006,900	170,993,800

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income attributable to TCF Financial Corporation	$ 162,032	$ 144,631
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	45,986	35,337
Depreciation and amortization	135,103	111,284
Proceeds from sale of loans and leases held for sale	867,669	751,200
Gains on sales of assets, net	(75,660)	(62,256)
Net income attributable to non-controlling interest	7,580	6,672
Originations of loans and leases held for sale, net of repayments	(904,503)	(704,018)
Net change in other assets and accrued expenses and other liabilities	107,742	72,747
Other, net	(21,562)	(22,915)
Net cash provided by (used in) operating activities	324,387	332,682
Cash flows from investing activities:
Loan and lease originations and purchases, net of principal collected on loans and leases	(1,358,906)	(1,529,968)
Purchases of equipment for lease financing	(840,650)	(752,536)
Proceeds from sales of loans and lease receivables	1,926,290	1,318,995
Proceeds from sales of lease equipment	11,348	6,677
Proceeds from sales of securities	0	177
Purchases of securities	(584,524)	(377,432)
Proceeds from maturities of and principal collected on securities	101,166	70,485
Purchases of Federal Home Loan Bank stock	(92,080)	(107,000)
Redemption of Federal Home Loan Bank stock	102,966	116,004
Proceeds from sales of real estate owned	53,045	51,017
Purchases of premises and equipment	(22,192)	(38,455)
Other, net	16,937	17,669
Net cash provided by (used in) investing activities	(686,600)	(1,224,367)
Cash flows from financing activities:
Net change in deposits	514,217	599,238
Net change in short-term borrowings	(4,084)	32,298
Proceeds from long-term borrowings	3,241,585	3,656,133
Payments on long-term borrowings	(3,570,356)	(3,706,122)
Net investment by (distribution to) non-controlling interest	(4,655)	(1,887)
Dividends paid on preferred stock	(14,541)	(14,541)
Dividends paid on common stock	(37,623)	(24,825)
Stock compensation tax (expense) benefit	(340)	362
Common shares sold to TCF employee benefit plans	5,838	19,273
Exercise of stock options	(684)	2,570
Net cash provided by (used in) financing activities	129,357	562,499
Net change in cash and due from banks	(232,856)	(329,186)
Cash and due from banks at beginning of period	889,337	1,115,250
Cash and due from banks at end of period	656,481	786,064
Cash paid (received) for:
Interest on deposits and borrowings	59,753	46,881
Income taxes, net	(12,235)	43,119
Transfer of loans to other assets	$ 76,417	$ 80,233

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Basis of Presentation (Notes)

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

TCF Financial Corporation (together with its direct and indirect subsidiaries, "we," "us," "our," "TCF" or the "Company"), a Delaware corporation, is a national bank holding company based in Wayzata, Minnesota. References herein to "TCF Financial" or the "Holding Company" refer to TCF Financial Corporation on an unconsolidated basis. TCF's principal subsidiary, TCF National Bank ("TCF Bank"), is headquartered in Sioux Falls, South Dakota.

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, therefore do not include all of the information and notes necessary for complete financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"). The information in this Quarterly Report on Form 10-Q is written with the presumption that the users of the interim financial statements have read or have access to the Company's most recent Annual Report on Form 10-K, which contains the latest audited financial statements and notes thereto, together with Management's Discussion and Analysis of Financial Condition and Results of Operations at December 31, 2015, and for the year then ended. All significant intercompany accounts and transactions have been eliminated in consolidation. Accounting policies in effect at December 31, 2015 remain significantly unchanged and have been followed similarly as in previous periods.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited consolidated financial statements contain all the significant adjustments, consisting of normal recurring items, considered necessary for fair presentation. The results of operations for interim periods are not necessarily indicative of the results to be expected for the entire year.

Effective January 1, 2016, the Company retrospectively adopted Accounting Standards Update ("ASU") No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which required that debt issuance costs be presented as a direct deduction from debt. Accordingly, the Company reclassified unamortized debt issuance costs of $2.1 million from Other assets to a reduction in Long-term borrowings on the Consolidated Statement of Financial Condition as of December 31, 2015. The adoption of this ASU did not impact results of operations, retained earnings or cash flows.

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented in these financial statements. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Previously, the Company's reportable segments were Lending, Funding and Support Services. The reportable segments follow GAAP as described in Note 1, Summary of Significant Accounting Policies, in Item 8 of TCF's 2015 Annual Report on Form 10-K, except for the accounting for intercompany interest income and interest expense, which are eliminated in consolidation, and presenting net interest income on a fully tax-equivalent basis. See Note 16, Business Segments for a description of the new segments.

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Cash and Due from Banks

9 Months Ended

Sep. 30, 2016

Cash and Cash Equivalents [Abstract]

Cash and Due from Banks

Cash and Due from Banks

At September 30, 2016 and December 31, 2015, TCF Bank was required by Federal Reserve regulations to maintain reserves of $103.8 million and $101.6 million, respectively, in cash on hand or at the Federal Reserve Bank.

TCF maintains cash balances that are restricted as to their use in accordance with certain contractual agreements primarily related to the sale and servicing of auto loans. Cash payments received on loans serviced for third parties are generally held in separate accounts until remitted. TCF may also retain cash balances for collateral on certain borrowings, forward foreign exchange contracts, interest rate contracts and other contracts. TCF maintained restricted cash totaling $51.2 million and $58.3 million at September 30, 2016 and December 31, 2015, respectively.

TCF had cash held in interest-bearing accounts of $398.0 million and $609.5 million at September 30, 2016 and December 31, 2015, respectively.

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Securities Available for Sale and Securities Held to Maturity

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Securities Available for Sale and Securities Held to Maturity

Securities Available for Sale and Securities Held to Maturity

Securities consisted of the following:

	At September 30, 2016								At December 31, 2015
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	791,208	$	14,120	$	53	$	805,275	$	627,521	$	655	$	6,246	$	621,930
Other	22		—		—		22		34		—		—		34
Obligations of states and political subdivisions	597,594		17,573		643		614,524		262,189		4,732		—		266,921
Total securities available for sale	$	1,388,824	$	31,693	$	696	$	1,419,821	$	889,744	$	5,387	$	6,246	$	888,885
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	181,558	$	12,158	$	32	$	193,684	$	197,410	$	5,247	$	214	$	202,443
Other	872		—		—		872		1,110		—		—		1,110
Other securities	2,800		—		—		2,800		3,400		—		—		3,400
Total securities held to maturity	$	185,230	$	12,158	$	32	$	197,356	$	201,920	$	5,247	$	214	$	206,953

There were no sales of securities available for sale during the third quarter and first nine months of 2016. During the third quarter and first nine months of 2015, TCF sold $0.2 million of securities available for sale and received cash proceeds of $0.2 million. At September 30, 2016 and December 31, 2015, mortgage-backed securities with a carrying value of $8.5 million and $17.1 million, respectively, were pledged as collateral to secure certain deposits and borrowings. There were no impairment charges recognized on securities available for sale during the third quarter and first nine months of 2016 and 2015. Unrealized losses on securities available for sale are due to changes in interest rates. TCF has the ability and intent to hold these investments until a recovery of fair value occurs.

TCF recorded $0.6 million and $0.7 millionof impairment charges for the third quarter and first nine months of 2016, respectively, on securities held to maturity compared with $0.2 million and $0.3 million for the same periods in 2015.

The following tables show the gross unrealized losses and fair value of securities available for sale and securities held to maturity at September 30, 2016 and December 31, 2015, aggregated by investment category and the length of time the securities were in a continuous loss position:

	At September 30, 2016
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	32,870	$	53	$	—	$	—	$	32,870	$	53
Obligations of states and political subdivisions	74,474		643		—		—		74,474		643
Total securities available for sale	$	107,344	$	696	$	—	$	—	$	107,344	$	696
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	1,964	$	32	$	—	$	—	$	1,964	$	32
Total securities held to maturity	$	1,964	$	32	$	—	$	—	$	1,964	$	32

	At December 31, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Total securities available for sale	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214
Total securities held to maturity	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214

The amortized cost and fair value of securities available for sale and securities held to maturity by final contractual maturity at September 30, 2016 and December 31, 2015 are shown below. The remaining contractual principal maturities do not consider possible prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay.

	At September 30, 2016				At December 31, 2015
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Securities available for sale:
Due in one year or less	$	1	$	1	$	1	$	1
Due in 1-5 years	22		22		38		38
Due in 5-10 years	307,812		320,329		268,638		272,511
Due after 10 years	1,080,989		1,099,469		621,067		616,335
Total securities available for sale	$	1,388,824	$	1,419,821	$	889,744	$	888,885
Securities held to maturity:
Due in one year or less	$	—	$	—	$	100	$	100
Due in 1-5 years	1,200		1,200		1,900		1,900
Due in 5-10 years	1,600		1,600		1,400		1,400
Due after 10 years	182,430		194,556		198,520		203,553
Total securities held to maturity	$	185,230	$	197,356	$	201,920	$	206,953

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Loans and Leases

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Loans and Leases

Loans and Leases

Loans and leases consisted of the following:

(Dollars in thousands)	At September 30, 2016		At December 31, 2015		Percent Change
Consumer real estate:
First mortgage lien	$	2,313,044	$	2,624,956	(11.9	)%
Junior lien	2,674,280		2,839,316		(5.8	)
Total consumer real estate	4,987,324		5,464,272		(8.7	)
Commercial:
Commercial real estate:
Permanent	2,214,685		2,267,218		(2.3	)
Construction and development	301,363		326,211		(7.6	)
Total commercial real estate	2,516,048		2,593,429		(3.0	)
Commercial business	634,151		552,403		14.8
Total commercial	3,150,199		3,145,832		0.1
Leasing and equipment finance	4,236,224		4,012,248		5.6
Inventory finance	2,261,086		2,146,754		5.3
Auto finance	2,731,900		2,647,596		3.2
Other	17,886		19,297		(7.3	)
Total loans and leases(1)	$	17,384,619	$	17,435,999	(0.3	)

(1) Loans and leases are reported at historical cost including net direct fees and costs associated with originating and acquiring loans and leases, lease residuals, unearned income and unamortized purchase premiums and discounts. The aggregate amount of these loan and lease adjustments was $62.5 million and $73.7 million at September 30, 2016 and December 31, 2015, respectively.

The consumer real estate junior lien portfolio was comprised of $2.4 billion of home equity lines of credit ("HELOCs") and $292.2 million of amortizing consumer real estate junior lien mortgage loans at September 30, 2016, compared with $2.5 billion and $345.3 million at December 31, 2015, respectively. At both September 30, 2016 and December 31, 2015, $1.8 billion of the consumer real estate junior lien HELOCs had a 10-year interest-only draw period and a 20-year amortization repayment period and all were within the 10-year interest-only draw period and will not convert to amortizing loans until the year 2021 or later. At September 30, 2016 and December 31, 2015, $561.4 million and $664.5 million, respectively, of the consumer real estate junior lien HELOCs were interest-only revolving draw loans with no defined amortization period and original draw periods of 5 to 40 years. As of September 30, 2016, 18.2% of these loans mature prior to the year 2021.

The following table summarizes the carrying value of consumer real estate loans and consumer auto loans sold with servicing retained, cash received, securitization receivable recorded, interest-only strips received and recognized net gains for the three and nine months ended September 30, 2016 and 2015. No servicing assets or liabilities related to consumer real estate or consumer auto loans were recorded within TCF's Consolidated Statements of Financial Condition, as the contractual servicing fees are adequate to compensate TCF for its servicing responsibilities based on the amount demanded by the marketplace.

	Three Months Ended September 30,													Nine Months Ended September 30,
(In thousands)	2016						2015							2016						2015
	Consumer Real Estate Loans			Consumer Auto Loans				Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans
Sales proceeds, net(1)	$	450,666		$	631,511			$	250,994		$	452,249		$	1,129,251		$	1,614,213		$	898,387		$	1,113,036
Recorded investment in loans sold, including accrued interest	(438,900		)	(619,324		)		(246,793		)	(441,477		)	(1,107,327		)	(1,603,413		)	(878,468		)	(1,084,348		)
Securitization receivable	—			—				—			—			—			18,620			—			—
Interest-only strips, initial value	2,513			—				2,711			—			13,426			5,695			6,948			—
Net gains(2)	$	14,279		$	12,187			$	6,912		$	10,772		$	35,350		$	35,115		$	26,867		$	28,688

(1) Includes transaction fees and other sales related costs.

(2) Excludes subsequent adjustments and valuation adjustments while held for sale.

TCF has two consumer real estate loan sale programs; one that sells nationally originated consumer real estate junior lien loans and the other that originates first mortgage lien loans in our primary banking markets and sells the loans through a correspondent relationship. Included in the consumer real estate recognized net gains for the third quarter and first nine months of 2016 were $2.1 million and $5.7 million, respectively, on the recorded investments of $95.9 million and $257.5 million, respectively, in first mortgage lien loans sold related to the correspondent lending program, including accrued interest. Included in the consumer real estate recognized net gains for the third quarter and first nine months of 2015 were $1.7 million and $4.7 million, respectively, on the recorded investments of $76.7 million and $212.9 million, respectively, in first mortgage lien loans sold related to the correspondent lending program, including accrued interest.

Included in the consumer auto loans sold in the table above are amounts related to the completion of securitizations. During the third quarter and first nine months of 2016, TCF transferred the recorded investment of $519.3 million and $933.6 million, respectively, in consumer auto loans, including accrued interest, with servicing retained, to trusts in securitization transactions, received net sales proceeds of $525.7 million and $926.0 million, respectively, recorded a securitization receivable of $18.6 million in the first nine months of 2016 and recognized net gains of $6.4 million and $11.0 million, respectively, which qualified for sale accounting. During the third quarter and first nine monthsof2015, TCF transferred the recorded investment of $441.5 million and $880.8 million, respectively, in consumer auto loans, including accrued interest, with servicing retained, to trusts in securitization transactions, received net sales proceeds of $452.2 million and $902.8 million, respectively, and recognized net gains of $10.8 million and $22.0 million, respectively, which qualified for sale accounting. These trusts are considered variable interest entities due to their limited capitalization and special purpose nature. TCF has concluded it is not the primary beneficiary of the trusts and they are not consolidated.

Total interest-only strips and the contractual liabilities related to loan sales are shown below.

(In thousands)	At September 30, 2016		At December 31, 2015
Interest-only strips attributable to:
Consumer real estate loan sales	$	27,238	$	19,182
Consumer auto loan sales	15,907		25,150
Contractual liabilities attributable to:
Consumer real estate loan sales	$	772	$	702
Consumer auto loan sales	173		185

TCF recorded $0.2 million and $0.8 million of impairment charges on consumer real estate loan interest-only strips for the third quarter and first nine months of 2016, respectively, compared with none for the same periods in 2015. TCF recorded $2.3 million of impairment charges on consumer auto loan interest-only strips for both the third quarter and first nine months of 2016, compared with $0.4 million and $0.9 million for the same periods in 2015.

TCF's agreements to sell auto and consumer real estate loans typically contain certain representations and warranties regarding the loans sold. These representations and warranties generally relate to, among other things, the ownership of the loan, the validity, priority and perfection of the lien securing the loan, accuracy of information supplied to the buyer, the loan's compliance with the criteria set forth in the agreement, payment delinquency and compliance with applicable laws and regulations. TCF may be required to repurchase loans in the event of an unremedied breach of these representations or warranties. During the nine months ended September 30, 2016 and 2015, losses related to repurchases pursuant to such representations and warranties were immaterial. The majority of such repurchases were of consumer auto loans where TCF typically has contractual agreements with the automobile dealerships that originated the loans requiring the dealers to repurchase such contracts from TCF.

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Allowance for Loan and Lease Losses and Credit Quality Information

9 Months Ended

Sep. 30, 2016

Allowance for Loan and Lease Losses and Credit Quality Information

Allowance for Loan and Lease Losses and Credit Quality Information

Allowance for Loan and Lease Losses and Credit Quality Information

The following tables provide the allowance for loan and lease losses and other related information. TCF's key credit quality indicator is the receivable's payment performance status, defined as accruing or non-accruing.

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	64,765		$	31,161		$	20,124		$	12,084		$	29,772		$	666		$	158,572
Charge-offs	(4,058		)	(4		)	(2,513		)	(697		)	(6,756		)	(2,216		)	(16,244		)
Recoveries	1,838			80			671			129			999			1,062			4,779
Net (charge-offs) recoveries	(2,220		)	76			(1,842		)	(568		)	(5,757		)	(1,154		)	(11,465		)
Provision for credit losses	1,402			411			2,367			335			8,361			1,018			13,894
Other	(1,855		)	—			—			(44		)	(3,261		)	—			(5,160		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	74,687		$	30,205		$	17,669		$	10,879		$	22,061		$	614		$	156,115
Charge-offs	(6,310		)	(487		)	(1,583		)	(463		)	(4,594		)	(1,901		)	(15,338		)
Recoveries	1,832			514			702			319			915			1,115			5,397
Net (charge-offs) recoveries	(4,478		)	27			(881		)	(144		)	(3,679		)	(786		)	(9,941		)
Provision for credit losses	780			(226		)	1,389			546			6,750			779			10,018
Other	(660		)	—			—			(160		)	(1,410		)	—			(2,230		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	67,992		$	30,185		$	19,018		$	11,128		$	26,486		$	1,245		$	156,054
Charge-offs	(14,550		)	(668		)	(6,125		)	(2,084		)	(18,683		)	(5,524		)	(47,634		)
Recoveries	5,094			330			1,834			696			2,743			3,435			14,132
Net (charge-offs) recoveries	(9,456		)	(338		)	(4,291		)	(1,388		)	(15,940		)	(2,089		)	(33,502		)
Provision for credit losses	8,963			1,801			5,922			1,925			26,001			1,374			45,986
Other	(5,407		)	—			—			142			(7,432		)	—			(12,697		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	85,361		$	31,367		$	18,446		$	10,020		$	18,230		$	745		$	164,169
Charge-offs	(27,074		)	(3,944		)	(5,447		)	(1,812		)	(12,943		)	(5,226		)	(56,446		)
Recoveries	5,626			2,878			2,205			626			2,253			3,902			17,490
Net (charge-offs) recoveries	(21,448		)	(1,066		)	(3,242		)	(1,186		)	(10,690		)	(1,324		)	(38,956		)
Provision for credit losses	8,660			(295		)	2,973			2,627			20,186			1,186			35,337
Other	(2,244		)	—			—			(340		)	(4,004		)	—			(6,588		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

The following tables provide information regarding the allowance for loan and lease losses and balances by type of allowance methodology:

	At September 30, 2016
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment Finance		Inventory Finance		Auto Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	37,035	$	31,516	$	18,447	$	11,582	$	27,723	$	528	$	126,831
Individually evaluated for impairment	25,057		132		2,202		225		1,392		2		29,010
Total	$	62,092	$	31,648	$	20,649	$	11,807	$	29,115	$	530	$	155,841
Loans and leases outstanding:
Collectively evaluated for impairment	$	4,779,921	$	3,101,536	$	4,219,280	$	2,259,513	$	2,722,343	$	17,878	$	17,100,471
Individually evaluated for impairment	207,403		48,663		16,924		1,573		9,556		8		284,127
Loans acquired with deteriorated credit quality	—		—		20		—		1		—		21
Total	$	4,987,324	$	3,150,199	$	4,236,224	$	2,261,086	$	2,731,900	$	17,886	$	17,384,619

	At December 31, 2015
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment  Finance		Inventory  Finance		Auto  Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	38,819	$	30,170	$	16,994	$	10,929	$	23,471	$	1,243	$	121,626
Individually evaluated for impairment	29,173		15		2,024		199		3,015		2		34,428
Total	$	67,992	$	30,185	$	19,018	$	11,128	$	26,486	$	1,245	$	156,054
Loans and leases outstanding:
Collectively evaluated for impairment	$	5,248,829	$	3,092,398	$	3,997,544	$	2,145,605	$	2,637,269	$	19,286	$	17,140,931
Individually evaluated for impairment	215,443		53,434		14,669		1,149		10,308		11		295,014
Loans acquired with deteriorated credit quality	—		—		35		—		19		—		54
Total	$	5,464,272	$	3,145,832	$	4,012,248	$	2,146,754	$	2,647,596	$	19,297	$	17,435,999

Accruing and Non-accrual Loans and Leases  The following tables set forth information regarding TCF's accruing and non-accrual loans and leases. Non-accrual loans and leases are those which management believes have a higher risk of loss. Delinquent balances are determined based on the contractual terms of the loan or lease.

	At September 30, 2016
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,191,920	$	6,546	$	1,339	$	2,199,805	$	113,239	$	2,313,044
Junior lien	2,627,405		696		—		2,628,101		46,179		2,674,280
Total consumer real estate	4,819,325		7,242		1,339		4,827,906		159,418		4,987,324
Commercial:
Commercial real estate	2,510,197		258		—		2,510,455		5,593		2,516,048
Commercial business	630,562		—		—		630,562		3,589		634,151
Total commercial	3,140,759		258		—		3,141,017		9,182		3,150,199
Leasing and equipment finance	4,217,716		4,902		1,184		4,223,802		12,288		4,236,090
Inventory finance	2,259,303		175		35		2,259,513		1,573		2,261,086
Auto finance	2,718,904		3,471		1,944		2,724,319		7,581		2,731,900
Other	17,873		5		3		17,881		5		17,886
Subtotal	17,173,880		16,053		4,505		17,194,438		190,047		17,384,485
Portfolios acquired with deteriorated credit quality	130		4		—		134		—		134
Total	$	17,174,010	$	16,057	$	4,505	$	17,194,572	$	190,047	$	17,384,619

	At December 31, 2015
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,489,235	$	8,649	$	2,916	$	2,500,800	$	124,156	$	2,624,956
Junior lien	2,793,684		1,481		38		2,795,203		44,113		2,839,316
Total consumer real estate	5,282,919		10,130		2,954		5,296,003		168,269		5,464,272
Commercial:
Commercial real estate	2,586,692		—		—		2,586,692		6,737		2,593,429
Commercial business	548,814		1		—		548,815		3,588		552,403
Total commercial	3,135,506		1		—		3,135,507		10,325		3,145,832
Leasing and equipment finance	3,998,469		1,728		564		4,000,761		11,262		4,012,023
Inventory finance	2,145,538		87		31		2,145,656		1,098		2,146,754
Auto finance	2,634,496		2,343		1,230		2,638,069		9,509		2,647,578
Other	19,274		13		7		19,294		3		19,297
Subtotal	17,216,202		14,302		4,786		17,235,290		200,466		17,435,756
Portfolios acquired with deteriorated credit quality	242		1		—		243		—		243
Total	$	17,216,444	$	14,303	$	4,786	$	17,235,533	$	200,466	$	17,435,999

The following table provides interest income recognized on loans and leases in non-accrual status and contractual interest that would have been recorded had the loans and leases performed in accordance with their original contractual terms:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
(In thousands)	2016		2015		2016		2015
Contractual interest due on non-accrual loans and leases	$	5,127	$	5,428	$	15,604	$	15,992
Interest income recognized on non-accrual loans and leases	1,048		1,021		3,097		3,319
Unrecognized interest income	$	4,079	$	4,407	$	12,507	$	12,673

The following table provides information regarding consumer real estate loans to customers currently involved in ongoing Chapter 7 or Chapter 13 bankruptcy proceedings which have not yet been discharged, dismissed or completed: 

(In thousands)	At September 30, 2016		At December 31, 2015
Consumer real estate loans to customers in bankruptcy:
0-59 days delinquent and accruing	$	15,273	$	26,020
Non-accrual	23,493		20,264
Total consumer real estate loans to customers in bankruptcy	$	38,766	$	46,284

Loan Modifications for Borrowers with Financial Difficulties  Included within loans and leases in the previous tables are certain loans that have been modified in order to maximize collection of loan balances. If, for economic or legal reasons related to the customer's financial difficulties, TCF grants a concession, the modified loan is classified as a troubled debt restructuring ("TDR") loan. All loans classified as TDR loans are considered to be impaired. TDR loans consist primarily of consumer real estate and commercial loans.

Total TDR loans at September 30, 2016 and December 31, 2015 were $218.0 million and $230.6 million, respectively, of which $129.7 million and $135.3 million, respectively, were accruing. TCF held consumer real estate TDR loans of $177.7 million and $185.8 million at September 30, 2016 and December 31, 2015, respectively, of which $101.9 million and $106.8 million, respectively, were accruing. TCF also held $26.9 million and $31.7 million of commercial TDR loans at September 30, 2016 and December 31, 2015, respectively, of which $21.5 million and $24.7 million, respectively, were accruing. TDR loans for the remaining classes of finance receivables were not material at September 30, 2016 or December 31, 2015.

Unfunded commitments to consumer real estate and commercial loans classified as TDRs were $0.4 million at both September 30, 2016 and December 31, 2015. At September 30, 2016 and December 31, 2015, no additional funds were committed to leasing and equipment finance, inventory finance or auto finance loans classified as TDRs.

When a loan is modified as a TDR, principal balances are generally not forgiven. Loan modifications to troubled borrowers are not reported as TDR loans in the calendar years after modification if the loans were modified to an interest rate equal to or greater than the yields of new loan originations with comparable risk at the time of restructuring and if the loan is performing based on the restructured terms; however, these loans are still considered impaired and follow TCF's impaired loan reserve policies. During the nine months ended September 30, 2016 and 2015, $0.1 million and $9.0 million, respectively, of commercial loans were removed from TDR status as they were restructured at market terms and were performing.

Unrecognized interest represents the difference between interest income recognized on accruing TDR loans and the contractual interest that would have been recorded under the original contractual terms. For the three months ended September 30, 2016, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $0.5 million and $0.2 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.3%, which compares to the original contractual average rate of 6.7%. For the three months ended September 30, 2015, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $0.5 million and $0.2 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.1%, which compares to the original contractual average rate of 6.8%. The unrecognized interest income for the remaining classes of finance receivables was not material for the three months ended September 30, 2016 and 2015.

For the nine months ended September 30, 2016, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $1.5 million and $0.5 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.2%, which compares to the original contractual average rate of 6.7%. For the nine months ended September 30, 2015, unrecognized interest income for consumer real estate first mortgage lien accruing TDR loans and consumer real estate junior lien accruing TDR loans was $1.6 million and $0.6 million, respectively. The average yield for the same period on consumer real estate accruing TDR loans was 4.0%, which compares to the original contractual average rate of 6.7%. The unrecognized interest income for the remaining classes of finance receivables was not material for the nine months ended September 30, 2016 and 2015.

The table below summarizes TDR loans that defaulted during the three and nine months ended September 30, 2016 and 2015, which were modified during the respective reporting period or within one year of the beginning of the respective reporting period. TCF considers a loan to have defaulted when under the modified terms it becomes 90 or more days delinquent, has been transferred to non-accrual status, has been charged down or has been transferred to other real estate owned or repossessed and returned assets.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2016		2015		2016		2015
Loan balance:(1)
Consumer real estate:
First mortgage lien	$	2,150	$	158	$	6,635	$	1,456
Junior lien	179		248		676		799
Total consumer real estate	2,329		406		7,311		2,255
Auto finance	334		282		1,233		676
Defaulted TDR loans modified during the applicable period	$	2,663	$	688	$	8,544	$	2,931

(1) The loan balances presented are not materially different than the pre-modification loan balances as TCF's loan modifications generally do not forgive principal amounts.

Consumer real estate TDR loans are evaluated separately in TCF's allowance methodology. Impairment is generally based upon the present value of the expected future cash flows discounted at the loan's initial effective interest rate, unless the loans are collateral dependent, in which case loan impairment is based upon the fair value of the collateral less selling expenses. The allowance on accruing consumer real estate TDR loans was $20.2 million, or 19.8% of the outstanding balance, at September 30, 2016, and $22.4 million, or 21.0% of the outstanding balance, at December 31, 2015. In determining impairment for consumer real estate accruing TDR loans, TCF utilized assumed remaining re-default rates ranging from 9% to 33% in 2016 and 10% to 33% in 2015, depending on modification type and actual experience. At September 30, 2016, 1.1% of accruing consumer real estate TDR loans were more than 60 days delinquent, compared with 2.0% at December 31, 2015.

Consumer real estate TDR loans generally remain on accruing status following modification if they are less than 90 days past due and payment in full under the modified terms of the loan is expected based on a current credit evaluation and historical payment performance. Of the non-accrual TDR balance at September 30, 2016, $51.2 million, or 67.6%, were loans discharged in Chapter 7 bankruptcy that were not reaffirmed by the borrower, of which 76.3% were current. Of the non-accrual TDR balance at December 31, 2015, $51.5 million, or 65.1%, were loans discharged in Chapter 7 bankruptcy that were not reaffirmed, of which 77.2% were current. All eligible loans are re-aged to current delinquency status upon modification.

Commercial TDR loans are individually evaluated for impairment based upon the present value of the expected future cash flows discounted at the loan's initial effective interest rate, unless the loans are collateral dependent, in which case impairment is based upon the fair value of collateral less estimated selling costs; however if payment or satisfaction of the loan is dependent on the operation, rather than the sale of the collateral, the impairment does not include selling costs. The allowance on accruing commercial TDR loans was less than $0.1 million, or 0.1% of the outstanding balance, at both September 30, 2016 and December 31, 2015. No accruing commercial TDR loans were 60 days or more delinquent at September 30, 2016 and December 31, 2015.

Impaired Loans  TCF considers impaired loans to include non-accrual commercial loans, non-accrual equipment finance loans and non-accrual inventory finance loans, as well as all TDR loans. Non-accrual impaired loans, including non-accrual TDR loans, are included in non-accrual loans and leases within the previous tables. Accruing TDR loans have been disclosed by delinquency status within the previous tables of accruing and non-accrual loans and leases. In the following tables, the loan balance of impaired loans represents the amount recorded within loans and leases on the Consolidated Statements of Financial Condition, whereas the unpaid contractual balance represents the balances legally owed by the borrowers.

The following table summarizes impaired loans:

	At September 30, 2016						At December 31, 2015
(In thousands)	Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded		Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	128,615	$	108,903	$	17,899	$	145,749	$	123,728	$	20,880
Junior lien	64,977		53,281		6,232		70,122		58,366		6,837
Total consumer real estate	193,592		162,184		24,131		215,871		182,094		27,717
Commercial:
Commercial real estate	12,762		12,762		129		298		298		12
Commercial business	14		14		3		16		16		3
Total commercial	12,776		12,776		132		314		314		15
Leasing and equipment finance	10,670		10,670		1,356		7,259		7,259		822
Inventory finance	1,179		1,185		225		867		873		199
Auto finance	6,052		5,705		1,327		8,275		8,062		2,942
Other	7		8		2		21		11		2
Total impaired loans with an allowance recorded	224,276		192,528		27,173		232,607		198,613		31,697
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	18,853		13,331		—		7,100		3,228		—
Junior lien	27,369		2,217		—		26,031		520		—
Total consumer real estate	46,222		15,548		—		33,131		3,748		—
Commercial:
Commercial real estate	20,039		14,301		—		37,598		31,157		—
Commercial business	4,041		3,589		—		3,738		3,585		—
Total commercial	24,080		17,890		—		41,336		34,742		—
Inventory finance	385		388		—		274		276		—
Auto finance	3,708		2,336		—		2,003		1,177		—
Other	85		—		—		2		—		—
Total impaired loans without an allowance recorded	74,480		36,162		—		76,746		39,943		—
Total impaired loans	$	298,756	$	228,690	$	27,173	$	309,353	$	238,556	$	31,697

The average loan balance of impaired loans and interest income recognized on impaired loans during the three and nine months ended September 30, 2016 and 2015 are included within the table below.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2016				2015				2016				2015
(In thousands)	Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	114,966	$	944	$	126,426	$	1,513	$	116,315	$	2,762	$	113,365	$	3,971
Junior lien	54,651		675		60,298		906		55,824		1,993		57,387		2,446
Total consumer real estate	169,617		1,619		186,724		2,419		172,139		4,755		170,752		6,417
Commercial:
Commercial real estate	12,926		100		19,183		174		6,530		230		36,143		777
Commercial business	15		—		18		—		15		—		17		—
Total commercial	12,941		100		19,201		174		6,545		230		36,160		777
Leasing and equipment finance	10,844		3		6,084		8		8,963		21		7,123		16
Inventory finance	777		10		1,869		17		1,030		41		1,529		66
Auto finance	5,871		33		5,309		8		6,883		72		4,557		8
Other	8		—		17		1		10		—		53		2
Total impaired loans with an allowance recorded	200,058		1,765		219,204		2,627		195,570		5,119		220,174		7,286
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	8,023		120		5,633		138		8,280		228		20,422		919
Junior lien	1,348		170		286		408		1,368		485		3,975		1,403
Total consumer real estate	9,371		290		5,919		546		9,648		713		24,397		2,322
Commercial:
Commercial real estate	15,101		170		37,109		507		22,729		606		41,988		1,674
Commercial business	3,869		—		2,014		—		3,587		—		2,077		5
Total commercial	18,970		170		39,123		507		26,316		606		44,065		1,679
Inventory finance	333		35		497		22		332		69		693		77
Auto finance	2,241		—		1,134		—		1,757		—		909		—
Total impaired loans without an allowance recorded	30,915		495		46,673		1,075		38,053		1,388		70,064		4,078
Total impaired loans	$	230,973	$	2,260	$	265,877	$	3,702	$	233,623	$	6,507	$	290,238	$	11,364

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Deposits

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Deposits

Deposits

Deposits consisted of the following:

	At September 30, 2016						At December 31, 2015
(Dollars in thousands)	Weighted-Average Rate		Amount		% of Total		Weighted-Average Rate		Amount		% of Total
Checking:
Non-interest bearing	—	%	$	3,350,978	19.4	%	—	%	$	3,187,581	19.1	%
Interest bearing	0.01		2,479,079		14.4		0.02		2,502,978		14.9
Total checking	0.01		5,830,057		33.8		0.01		5,690,559		34.0
Savings	0.03		4,670,281		27.1		0.06		4,717,457		28.2
Money market	0.62		2,450,576		14.2		0.63		2,408,180		14.5
Certificates of deposit	1.06		4,283,292		24.9		0.91		3,903,793		23.3
Total deposits	0.36		$	17,234,206	100.0	%	0.30		$	16,719,989	100.0	%

Certificates of deposit had the following remaining maturities at September 30, 2016:

(In thousands)	Denominations  $100 Thousand or Greater		Denominations Less Than  $100 Thousand		Total
Maturity:
Three months or less	$	355,778	$	341,958	$	697,736
Over three through six months	382,681		383,483		766,164
Over six through 12 months	756,120		756,972		1,513,092
Over 12 months	660,307		645,993		1,306,300
Total	$	2,154,886	$	2,128,406	$	4,283,292

The aggregate amount of certificates of deposit with balances equal to or greater than the Federal Deposit Insurance Corporation insurance limit of $250,000 were $599.3 million and $484.2 million at September 30, 2016 and December 31, 2015, respectively.

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Short-term Borrowings

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Short-term Borrowings

Short-term Borrowings

Selected information for short-term borrowings (borrowings with an original maturity of one year or less) consisted of the following:

	At September 30, 2016				At December 31, 2015
(Dollars in thousands)	Amount		Rate		Amount		Rate
Period end balance:
Securities sold under repurchase agreements	$	1,514	0.10	%	$	5,381	0.03	%
Total	$	1,514	0.10		$	5,381	0.03
Average daily balances for the period ended:
Federal funds purchased	$	113	0.75	%	$	225	0.45	%
Securities sold under repurchase agreements	5,771		0.39		16,431		0.06
Line of Credit - TCF Commercial Finance Canada, Inc.	1,834		1.75		2,166		1.96
Total	$	7,718	0.72		$	18,822	0.28
Maximum month-end balances for the period ended:
Securities sold under repurchase agreements	$	3,391	N.A.		$	62,995	N.A.
Line of Credit - TCF Commercial Finance Canada, Inc.	5,907		N.A.		5,519		N.A.
N.A. Not Applicable.

At September 30, 2016, the securities sold under short-term repurchase agreements were related to TCF Bank's Repurchase Investment Sweep Agreement product and were collateralized by mortgage-backed securities having a period end fair value of $7.4 million.

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Long-term Borrowings

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Long-term Borrowings

Long-term Borrowings

Long-term borrowings consisted of the following:

		At September 30, 2016							At December 31, 2015
(Dollars in thousands)	Stated Maturity	Amount		Stated Rate					Amount			Stated Rate
Federal Home Loan Bank advances	2016	$	150,000	0.71	%	-	0.72	%	$	447,000		0.54	%	-	1.17	%
	2017	—					—		125,000			0.49		-	0.51
	2018	150,000					0.54		—						—
Subtotal		300,000							572,000
Subordinated bank notes	2016	—					—		74,992						5.50
	2022	108,603					6.25		108,454						6.25
	2025	148,003					4.60		147,861						4.60
Hedge-related basis adjustment(1)		7,659							(209		)
Subtotal		264,265							331,098
Discounted lease rentals	2016	15,154		2.46		-	6.88		48,120			2.39		-	7.95
	2017	56,434		2.45		-	7.88		41,969			2.45		-	7.88
	2018	40,221		2.55		-	7.95		24,496			2.55		-	7.95
	2019	21,566		2.53		-	6.00		9,329			2.53		-	6.00
	2020	10,093		2.64		-	6.90		2,035			2.95		-	5.15
	2021	3,508		2.88		-	4.57		83						4.57
Subtotal		146,976							126,032
Other long-term borrowings	2016	—					—		2,685						1.36
	2017	2,755					1.36		2,742						1.36
Subtotal		2,755							5,427
Total long-term borrowings		$	713,996						$	1,034,557

(1) Related to subordinated bank notes with a stated maturity of 2025.

At September 30, 2016, TCF Bank had pledged loans secured by residential and commercial real estate and Federal Home Loan Bank ("FHLB") stock with an aggregate carrying value of $4.1 billion as collateral for FHLB advances. At September 30, 2016, $150.0 million of FHLB advances outstanding were prepayable monthly at TCF's option.

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Regulatory Capital Requirements

9 Months Ended

Sep. 30, 2016

Regulatory Capital Requirements [Abstract]

Regulatory Capital Requirements

Regulatory Capital Requirements

TCF and TCF Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory, and possible additional discretionary, actions by the federal banking agencies that could have a material adverse effect on TCF. In general, TCF Bank may not declare or pay a dividend to TCF Financial in excess of 100% of its net retained earnings for the current year combined with its net retained earnings for the preceding two calendar years, which was $445.4 million at September 30, 2016, without prior approval of the Office of the Comptroller of the Currency ("OCC"). The OCC also has the authority to prohibit the payment of dividends by a national bank when it determines such payments would constitute an unsafe and unsound banking practice. TCF Bank's ability to make capital distributions in the future may require regulatory approval and may be restricted by its regulatory authorities. TCF Bank's ability to make any such distributions will also depend on its earnings and ability to meet minimum regulatory capital requirements in effect during future periods. These capital adequacy standards may be higher in the future than existing minimum regulatory capital requirements.

The following table presents regulatory capital information for TCF and TCF Bank:

	TCF						TCF Bank
	At September 30,			At December 31,			At September 30,			At December 31,			Well-capitalized Standard		Minimum Capital Requirement(1)
(Dollars in thousands)	2016			2015			2016			2015
Regulatory Capital:
Common equity Tier 1 capital	$	1,936,029		$	1,814,442		$	2,110,923		$	1,992,584
Tier 1 capital	2,215,312			2,092,195			2,129,849			2,008,585
Total capital	2,596,697			2,487,060			2,546,708			2,425,682
Regulatory Capital Ratios:
Common equity Tier 1 capital ratio	10.35		%	10.00		%	11.29		%	10.99		%	6.50	%	4.50	%
Tier 1 risk-based capital ratio	11.85			11.54			11.39			11.07			8.00		6.00
Total risk-based capital ratio	13.89			13.71			13.62			13.37			10.00		8.00
Tier 1 leverage ratio	10.66			10.46			10.25			10.04			5.00		4.00

(1) Excludes capital conservation buffer of 0.625% as of September 30, 2016.

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Stock Compensation

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Compensation

Stock Compensation

The following table reflects TCF's restricted stock and stock option transactions under the TCF Financial 2015 Omnibus Incentive Plan ("Omnibus Incentive Plan") and the TCF Financial Incentive Stock Program ("Incentive Stock Program") during the nine months ended September 30, 2016:

	Restricted Stock									Stock Options
	Shares		Price Range					Weighted- Average Grant Date Fair Value		Shares		Price Range					Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price
Outstanding at December 31, 2015	3,273,086		$	6.16	-	$	16.28	$	13.09	1,379,000		$	12.85	-	$	15.75	2.17	$	14.07
Granted	834,000		9.48		-	13.05		12.05		—		—		-	—		—	—
Exercised	—		—		-	—		—		(800,000	)	12.85		-	12.85		—	12.85
Forfeited/canceled	(205,483	)	6.16		-	15.96		13.54		(118,000	)	15.75		-	15.75		—	15.75
Vested	(401,225	)	9.65		-	15.96		13.10		—		—		-	—		—	—
Outstanding at September 30, 2016	3,500,378		7.73		-	16.28		12.81		461,000		15.75		-	15.75		1.31	15.75
Exercisable at September 30, 2016	N.A.							N.A.		461,000		15.75		-	15.75			15.75

N.A. Not Applicable.

Unrecognized stock compensation expense for restricted stock awards and options was $27.0 million, excluding estimated forfeitures, with a weighted-average remaining amortization period of 2.0 years at September 30, 2016.

At September 30, 2016, there were 50,000 and 1,050,000 shares of performance-based restricted stock outstanding under the Omnibus Incentive Plan and Incentive Stock Program, respectively, that will vest only if certain performance goals and service conditions are achieved. Failure to achieve the performance and service conditions will result in all or a portion of the shares being forfeited.

The number of restricted stock units granted under the Omnibus Incentive Plan was 228,867 at target and the actual restricted stock units granted will depend on actual performance with a maximum total payout of 150% of target. The weighted-average remaining amortization period of the restricted stock units was 1.9 years at September 30, 2016.

Valuation and related assumption information for TCF's stock option plans related to options issued in 2008 have not changed significantly from December 31, 2015 andno stock options were subsequently issued under the Incentive Stock Program. As of September 30, 2016, no stock options were issued under the Omnibus Incentive Plan.

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Employee Benefit Plans

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The following tables set forth the net periodic benefit plan (income) cost included in compensation and employee benefits expense for the TCF Cash Balance Pension Plan (the "Pension Plan") and health care benefits for eligible retired employees (the "Postretirement Plan") for the three and nine months ended September 30, 2016 and 2015:

	Pension Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	321		$	303		$	961		$	911
Return on plan assets	(147		)	(159		)	(440		)	(479		)
Net periodic benefit plan (income) cost	$	174		$	144		$	521		$	432

	Postretirement Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	37		$	39		$	113		$	115
Amortization of prior service cost	(12		)	(12		)	(35		)	(35		)
Net periodic benefit plan (income) cost	$	25		$	27		$	78		$	80

TCF made no cash contributions to the Pension Plan in either of the nine months ended September 30, 2016 or 2015. During the three and nine months ended September 30, 2016 and 2015, TCF contributed $0.1 million and $0.3 million, respectively, to the Postretirement Plan.

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Derivative Instruments

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

All derivative instruments are recognized within other assets or other liabilities at fair value within the Consolidated Statements of Financial Condition. The Company's derivative instruments are subject to master netting arrangements and collateral arrangements and qualify for offset in the Consolidated Statements of Financial Condition. A master netting arrangement with a counterparty creates a right of offset for amounts due to and from that same counterparty that is enforceable in the event of a default or bankruptcy. The Company's policy is to recognize amounts subject to master netting arrangements and collateral arrangements on a net basis in the Consolidated Statements of Financial Condition. The value of derivative instruments will vary over their contractual terms as the related underlying rates fluctuate. The accounting for changes in the fair value of a derivative instrument depends on whether or not the contract has been designated and qualifies as a hedge. To qualify as a hedge, a contract must be highly effective at reducing the risk associated with the exposure being hedged. In addition, for a contract to be designated as a hedge, the risk management objective and strategy must be documented at inception. Hedge documentation must also identify the hedging instrument, the asset or liability and type of risk to be hedged and how the effectiveness of the contract is assessed prospectively and retrospectively. To assess effectiveness, TCF uses statistical methods such as regression analysis. A contract that has been, and is expected to continue to be, effective at offsetting changes in fair values or the net investment must be assessed and documented at least quarterly. If it is determined that a contract is not highly effective at hedging the designated exposure, hedge accounting is discontinued.

Upon origination of a derivative instrument, the contract is designated either as a hedge of the exposure to changes in the fair value of an asset or liability due to changes in market risk ("fair value hedge"), a hedge of the volatility of an investment in foreign operations driven by changes in foreign currency exchange rates ("net investment hedge"), or is not designated as a hedge.

Fair Value Hedges During the first quarter of 2015, TCF Bank entered into an interest rate swap agreement related to its contemporaneously issued subordinated debt, which settles through a central clearing house. The swap was designated as a fair value hedge and effectively converts the fixed interest rate to a floating rate based on the three-month London InterBank Offered Rate plus a fixed number of basis points on the $150.0 million notional amount through February 27, 2025, the maturity date of the subordinated debt. In exchange, TCF Bank will receive 4.60% fixed-rate interest on the $150.0 million notional amount from the swap counterparty.

The interest rate swap substantially offsets the change in fair value of the hedged underlying debt that is attributable to the changes in market risk. The gains and losses related to changes in the fair value of the interest rate swap as well as the offsetting changes in fair value of the hedged debt are reflected in non-interest income.

Net Investment Hedges  Forward foreign exchange contracts, that generally settle within 34 days, are used to manage the foreign exchange risk associated with the Company's net investment in TCF Commercial Finance Canada, Inc., a wholly-owned indirect Canadian subsidiary of TCF Bank. Changes in net investment hedges recorded within other comprehensive income (loss) are subsequently reclassified to non-interest expense during the period in which the foreign investment is substantially liquidated or when other elements of the currency translation adjustment are reclassified to income.

Derivatives Not Designated as Hedges  Certain of TCF's forward foreign exchange contracts are not designated as hedges and are generally settled within 34 days. Changes in the fair value of these forward foreign exchange contracts are reflected in non-interest expense.

TCF executes interest rate swap agreements with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged with offsetting interest rate swaps that TCF executes with a third party and settles through a central clearing house, minimizing TCF's net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are reflected in non-interest income. These contracts have original fixed maturity dates ranging from three to seven years.

TCF enters into interest rate lock commitments in conjunction with the sale of certain consumer real estate loans. These interest rate lock commitments are agreements to extend credit under certain specified terms and conditions at fixed rates and have original lock expirations of up to 60 days. They are not designated as hedges and accordingly, changes in the valuation of these commitments are reflected in non-interest income.

During the second quarter of 2012, TCF sold its Visa^® Class B stock. In conjunction with the sale, TCF and the purchaser entered into a derivative transaction whereby TCF may receive or be required to make cash payments whenever the conversion ratio of the Visa Class B stock into Visa Class A stock is adjusted. The fair value of this derivative has been determined using estimated future cash flows using probability weighted scenarios for multiple estimates of Visa's aggregate exposure to covered litigation matters, which include consideration of amounts funded by Visa into its escrow account for the covered litigation matters. Changes, if any, in the valuation of this swap agreement, which has no determinable maturity date, are reflected in non-interest expense.

The following tables summarize TCF's outstanding derivative instruments as of September 30, 2016 and December 31, 2015. See Note 13, Fair Value Disclosures, for additional information.

	At September 30, 2016
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	8,990	$	(3,703	)	$	5,287
Forward foreign exchange contracts	59,649		447		(182		)	265
Derivatives not designated as hedges:
Forward foreign exchange contracts	194,259		2,196		(1,504		)	692
Interest rate contracts	126,451		3,827		—			3,827
Interest rate lock commitments	52,088		866		—			866
Total derivative assets			$	16,326	$	(5,389	)	$	10,937
Derivative Liabilities:
Derivatives not designated as hedges:
Forward foreign exchange contracts	202,486		835		(791		)	44
Interest rate contracts	126,451		4,002		(4,002		)	—
Other contracts	13,804		387		(387		)	—
Interest rate lock commitments	374		4		—			4
Total derivative liabilities			$	5,228	$	(5,180	)	$	48
	At December 31, 2015
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Forward foreign exchange contracts	$	47,409	$	858	$	—		$	858
Derivatives not designated as hedges:
Forward foreign exchange contracts	260,678		5,057		(2,081		)	2,976
Interest rate contracts	111,347		2,093		—			2,093
Interest rate lock commitments	50,667		729		—			729
Total derivative assets			$	8,737	$	(2,081	)	$	6,656
Derivative Liabilities:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	142	$	(142	)	$	—
Derivatives not designated as hedges:
Forward foreign exchange contracts	187,902		1,192		(1,081		)	111
Interest rate contracts	111,347		2,175		(2,175		)	—
Other contracts	13,804		305		(305		)	—
Interest rate lock commitments	3,218		13		—			13
Total derivative liabilities			$	3,827	$	(3,703	)	$	124

The following table summarizes the pre-tax impact of derivative activity within the Consolidated Statements of Income and the Consolidated Statements of Comprehensive Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	Income Statement Location	2016			2015			2016			2015
Consolidated Statements of Income:
Fair value hedges:
Interest rate contracts	Other non-interest income	$	(1,407	)	$	6,296		$	9,132		$	2,029
Non-derivative hedged items	Other non-interest income	1,333			(5,425		)	(7,868		)	(1,862		)
Not designated as hedges:
Forward foreign exchange contracts	Other non-interest expense	5,979			26,574			(23,459		)	55,866
Interest rate lock commitments	Gains on sales of consumer real estate loans, net	(91		)	189			146			359
Interest rate contracts	Other non-interest income	27			(48		)	(92		)	(28		)
Other contracts	Other non-interest expense	—			—			(319		)	—
Net gain (loss) recognized		$	5,841		$	27,586		$	(22,460	)	$	56,364
Consolidated Statements of Comprehensive Income:
Net investment hedges:
Forward foreign exchange contracts	Other comprehensive income (loss)	$	904		$	2,858		$	(2,691	)	$	5,772
Net unrealized gain (loss)		$	904		$	2,858		$	(2,691	)	$	5,772

TCF executes all of its forward foreign exchange contracts in the over-the-counter market with large financial institutions pursuant to International Swaps and Derivatives Association, Inc. agreements. These agreements include credit risk-related features that enhance the creditworthiness of these instruments as compared with other obligations of the respective counterparty with whom TCF has transacted by requiring that additional collateral be posted under certain circumstances. The amount of collateral required depends on the contract and is determined daily based on market and currency exchange rate conditions.

At September 30, 2016, credit risk-related contingent features existed on forward foreign exchange contracts with a notional value of $121.9 million. In the event TCF is rated less than BB- by Standard and Poor's, the contracts could be terminated or TCF may be required to provide approximately $2.4 million in additional collateral. There were no forward foreign exchange contracts containing credit risk-related features in a net liability position at September 30, 2016.

At September 30, 2016, TCF had posted $2.8 million, $1.4 million and $0.4 million of cash collateral related to its interest rate contracts, other contracts and forward foreign exchange contracts, respectively, and had received $1.2 million of cash collateral related to its forward foreign exchange contracts.

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Fair Values Disclosures

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Disclosures

Fair Value Disclosures

TCF uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The Company's fair values are based on the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available for sale, certain loans and leases held for sale, interest-only strips, forward foreign exchange contracts, interest rate contracts, interest rate lock commitments, forward loan sales commitments, assets and liabilities held in trust for deferred compensation plans and other contracts are recorded at fair value on a recurring basis. From time to time we may be required to record at fair value other assets on a non-recurring basis, such as certain securities held to maturity, loans, other real estate owned, repossessed and returned assets and the securitization receivable. These non-recurring fair value adjustments typically involve application of lower of cost or fair value accounting or write-downs of individual assets.

The following is a discussion of the fair value hierarchy and the valuation methodologies used for assets and liabilities recorded at fair value on a recurring or non-recurring basis and for estimating fair value of financial instruments not recorded at fair value.

TCF groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the degree and reliability of estimates and assumptions used to determine fair value as follows: Level 1, which includes valuations that are based on prices obtained from independent pricing sources for the same instruments traded in active markets; Level 2, which includes valuations that are based on prices obtained from independent pricing sources that are based on observable transactions of similar instruments, but not quoted markets; and Level 3, for which valuations are generated from Company model-based techniques that use significant unobservable inputs. Such unobservable inputs reflect estimates of assumptions that market participants would use in pricing the asset or liability.

Investments The carrying value of investments in FHLB stock and Federal Reserve Bank stock, categorized as Level 2, approximates fair value based on redemption at par value.

Securities Held to Maturity Securities held to maturity consist primarily of securities of U.S. Government sponsored enterprises and federal agencies. The fair value of securities of U.S. Government sponsored enterprises and federal agencies, categorized as Level 2, is estimated using prices obtained from independent asset pricing services that are based on observable transactions, but not quoted markets. Management reviews the prices obtained from independent asset pricing services for unusual fluctuations and comparisons to current market trading activity. The fair value of other mortgage-backed securities and other securities, categorized as Level 3, is estimated based on discounted cash flows using consideration of credit exposure and other internal pricing methods. There is no observable secondary market for these securities.

Securities Available for Sale Securities available for sale consist primarily of securities of U.S. Government sponsored enterprises and federal agencies, and obligations of states and political subdivisions. The fair value of these securities, categorized as Level 2, is recorded using prices obtained from independent asset pricing services that are based on observable transactions, but not quoted markets. Management reviews the prices obtained from independent asset pricing services for unusual fluctuations and comparisons to current market trading activity.

Loans and Leases Held for Sale Loans and leases held for sale are generally carried at the lower of cost or fair value. Estimated fair values are based upon recent loan sale transactions and any available price quotes on loans with similar coupons, maturities and credit quality. Certain other loans and leases held for sale are recorded at fair value under the elected fair value option. TCF relies on internal valuation models which utilize quoted investor prices to estimate the fair value of these loans. Loans and leases held for sale are categorized as Level 3.

Loans The fair value of loans, categorized as Level 3, is estimated based on discounted expected cash flows and recent sales of similar loans. The discounted cash flows include assumptions for prepayment estimates over each loan's remaining life, consideration of the current interest rate environment compared with the weighted average rate of each portfolio, a credit risk component based on the historical and expected performance of each portfolio and a liquidity adjustment related to the current market environment. TCF also uses pricing data from recent sales of loans with similar risk characteristics as data points to validate the assumptions used in estimating the fair value of certain loans.

Loans for which repayment is expected to be provided solely by the value of the underlying collateral, categorized as Level 3 and recorded at fair value on a non-recurring basis, are valued based on the fair value of that collateral less estimated selling costs. Such loans include non-accrual impaired loans as well as certain delinquent non-accrual consumer real estate and auto finance loans. The fair value of the collateral is determined based on internal estimates and assessments provided by third-party appraisers.

Interest-only Strips The fair value of interest-only strips, categorized as Level 3, represents the present value of future cash flows expected to be received by TCF on certain assets. TCF uses available market data, along with its own empirical data and discounted cash flow models, to arrive at the estimated fair value of its interest-only strips. The present value of the estimated expected future cash flows to be received is determined by using discount, loss and prepayment rates that TCF believes are commensurate with the risks associated with the cash flows and what a market participant would use. These assumptions are inherently subject to volatility and uncertainty and, as a result, the estimated fair value of the interest-only strips may fluctuate significantly from period to period.

Forward Foreign Exchange Contracts TCF's forward foreign exchange contracts are currency contracts executed in over-the-counter markets and are recorded at fair value using a cash flow model that includes key inputs such as foreign exchange rates and, in accordance with GAAP, an assessment of the risk of counterparty non-performance. The risk of counterparty non-performance is based on external assessments of credit risk. The fair value of these contracts, categorized as Level 2, is based on observable transactions, but not quoted markets.

Interest Rate Contracts TCF executes interest rate swap agreements with commercial banking customers to facilitate the customer's risk management strategy. These interest rate swaps are simultaneously hedged by offsetting interest rate swaps TCF executes with a third party, minimizing TCF's net risk exposure resulting from such transactions. TCF has an interest rate swap agreement to convert its $150.0 million of fixed-rate subordinated notes to floating rate debt. These derivative instruments are recorded at fair value. The fair value of these swap agreements, categorized as Level 2, is determined using a cash flow model which considers the forward curve, the discount curve and credit valuation adjustments related to counterparty and/or borrower non-performance risk.

Interest Rate Lock Commitments and Forward Loan Sales Commitments TCF's interest rate lock commitments are derivative instruments which are carried at fair value. The related forward loan sales commitments to sell the resulting loans held for sale are also recorded at fair value under the elected fair value option. TCF relies on internal valuation models to estimate the fair value of these instruments. The valuation models utilize estimated rates of successful loan closings and quoted investor prices. While these models use both Level 2 and 3 inputs, TCF has determined that the majority of the inputs significant in the valuation of these commitments fall within Level 3 and therefore they are categorized as Level 3.

Other Real Estate Owned and Repossessed and Returned Assets The fair value of other real estate owned, categorized as Level 3, is based on independent appraisals, real estate brokers' price opinions or automated valuation methods, less estimated selling costs. Certain properties require assumptions that are not observable in an active market in the determination of fair value. The fair value of repossessed and returned assets is based on available pricing guides, auction results or price opinions, less estimated selling costs. Assets acquired through foreclosure, repossession or returned to TCF are initially recorded at the lower of the loan or lease carrying amount or fair value less estimated selling costs at the time of transfer to other real estate owned or repossessed and returned assets. Other real estate owned at September 30, 2016 and December 31, 2015 was $33.7 million and $50.0 million, respectively. Repossessed and returned assets at September 30, 2016 and December 31, 2015 was $8.8 million and $8.0 million, respectively. Other real estate owned and repossessed and returned assets were written down $2.0 million and $7.0 million, which was included in foreclosed real estate and repossessed assets, net expense for the three and nine months ended September 30, 2016, respectively, compared with $2.9 million and $10.4 million for the same periods in 2015.

Securitization Receivable TCF executed a consumer auto loan securitization during the second quarter of 2016 with a related receivable representing a cash reserve account posted at the inception of the securitization. The fair value of the securitization receivable, categorized as Level 3, is estimated based on discounted cash flows using interest rates for borrowings of similar remaining maturities plus a spread based on management's judgment.

Assets and Liabilities Held in Trust for Deferred Compensation Plans Assets held in trust for deferred compensation plans include investments in publicly traded securities, excluding TCF common stock reported in treasury and other equity, and U.S. Treasury notes. The fair value of these assets, categorized as Level 1, is based upon prices obtained from independent asset pricing services based on active markets. The fair value of the liabilities equals the fair value of the assets.

Other Contracts TCF has a swap agreement related to the sale of TCF's Visa Class B stock, categorized as Level 3. The fair value of the Visa agreement is based upon TCF's estimated exposure related to the Visa covered litigation through a probability analysis of the funding and estimated settlement amounts.

Deposits The fair value of checking, savings and money market deposits, categorized as Level 1, is deemed equal to the amount payable on demand. The fair value of certificates of deposit, categorized as Level 2, is estimated based on discounted cash flows using currently offered market rates. The intangible value of long-term relationships with depositors is not taken into account in the fair values disclosed.

Long-term Borrowings The fair value of TCF's long-term borrowings, categorized as Level 2, is estimated based on observable market prices and discounted cash flows using interest rates for borrowings of similar remaining maturities and characteristics. The fair value of other long-term borrowings, categorized as Level 3, is based on unobservable inputs determined at the time of origination.

Financial Instruments with Off-Balance Sheet Risk The fair value of TCF's commitments to extend credit and standby letters of credit, categorized as Level 2, is estimated using fees currently charged to enter into similar agreements. Substantially all commitments to extend credit and standby letters of credit have floating interest rates and do not expose TCF to interest rate risk; therefore fair value is approximately equal to carrying value.

The following tables present the balances of assets and liabilities measured at fair value on a recurring and non-recurring basis:

	Fair Value Measurements at September 30, 2016
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	805,275	$	—	$	805,275
Other	—		—		22		22
Obligations of states and political subdivisions	—		614,524		—		614,524
Loans and leases held for sale	—		—		6,331		6,331
Interest-only strips	—		—		43,145		43,145
Forward foreign exchange contracts(1)	—		2,643		—		2,643
Interest rate contracts(1)	—		12,817		—		12,817
Interest rate lock commitments(1)	—		—		866		866
Forward loan sales commitments	—		—		3		3
Assets held in trust for deferred compensation plans	22,156		—		—		22,156
Total assets	$	22,156	$	1,435,259	$	50,367	$	1,507,782
Forward foreign exchange contracts(1)	$	—	$	835	$	—	$	835
Interest rate contracts(1)	—		4,002		—		4,002
Interest rate lock commitments(1)	—		—		4		4
Forward loan sales commitments	—		—		199		199
Liabilities held in trust for deferred compensation plans	22,156		—		—		22,156
Other contracts(1)	—		—		387		387
Total liabilities	$	22,156	$	4,837	$	590	$	27,583
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	3,272	$	3,272
Loans	—		—		122,457		122,457
Other real estate owned:
Consumer	—		—		19,906		19,906
Commercial	—		—		3,874		3,874
Repossessed and returned assets	—		2,641		2,218		4,859
Total non-recurring fair value measurements	$	—	$	2,641	$	151,727	$	154,368

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

	Fair Value Measurements at December 31, 2015
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	621,930	$	—	$	621,930
Other	—		—		34		34
Obligations of states and political subdivisions	—		266,921		—		266,921
Loans and leases held for sale	—		—		10,568		10,568
Interest-only strips	—		—		44,332		44,332
Forward foreign exchange contracts(1)	—		5,915		—		5,915
Interest rate contracts(1)	—		2,093		—		2,093
Interest rate lock commitments(1)	—		—		729		729
Forward loan sales commitments	—		—		284		284
Assets held in trust for deferred compensation plans	19,731		—		—		19,731
Total assets	$	19,731	$	896,859	$	55,947	$	972,537
Forward foreign exchange contracts(1)	$	—	$	1,192	$	—	$	1,192
Interest rate contracts(1)	—		2,317		—		2,317
Interest rate lock commitments(1)	—		—		13		13
Forward loan sales commitments	—		—		19		19
Liabilities held in trust for deferred compensation plans	19,731		—		—		19,731
Other contracts(1)	—		—		305		305
Total liabilities	$	19,731	$	3,509	$	337	$	23,577
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	1,110	$	1,110
Loans	—		—		130,797		130,797
Other real estate owned:
Consumer	—		—		37,619		37,619
Commercial	—		—		5,249		5,249
Repossessed and returned assets	—		2,673		2,197		4,870
Total non-recurring fair value measurements	$	—	$	2,673	$	176,972	$	179,645

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

Management assesses the appropriate classification of financial assets and liabilities within the fair value hierarchy by monitoring the level of availability of observable market information. Changes in markets or economic conditions, as well as changes to Company valuation models may require the transfer of financial instruments from one fair value level to another. Such transfers, if any, are recorded at the fair values as of the beginning of the quarter in which the transfer occurred. TCF had no transfers in the nine months ended September 30, 2016 and 2015.

The following table presents changes in Level 3 assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Three Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	25		$	7,565		$	48,411		$	953		$	(317	)	$	(466	)
Total net gains (losses) included in:
Net income	—			(72		)	(819		)	(91		)	121			—
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(95,901		)	—			—			—			—
Originations	—			94,739			2,513			—			—			—
Principal paydowns / settlements	(3		)	—			(7,744		)	—			—			79
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Three Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	45		$	4,962		$	55,944		$	455		$	(5	)	$	(465	)
Total net gains (losses) included in:
Net income	—			18			1,520			188			(13		)	—
Sales	—			(76,677		)	—			—			—			—
Originations	—			77,502			2,711			—			—			—
Principal paydowns / settlements	(7		)	—			(9,476		)	—			—			79
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)
(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Nine Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	34		$	10,568		$	44,332		$	716		$	265		$	(305	)
Total net gains (losses) included in:
Net income	—			126			1,697			146			(461		)	(318		)
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(257,641		)	—			—			—			—
Originations	—			253,278			19,121			—			—			—
Principal paydowns / settlements	(12		)	—			(22,789		)	—			—			236
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Nine Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	55		$	3,308		$	69,789		$	285		$	(23	)	$	(621	)
Total net gains (losses) included in:
Net income	—			50			5,309			358			5			—
Sales	—			(212,940		)	—			—			—			—
Originations	—			215,387			6,948			—			—			—
Principal paydowns / settlements	(17		)	—			(31,347		)	—			—			235
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)

Fair Value Option

TCF Bank originates first mortgage lien loans in its primary banking markets and sells the loans through a correspondent relationship. TCF elected the fair value option for these loans. This election facilitates the offsetting of changes in fair values of the loans held for sale and the derivative financial instruments used to economically hedge them. The following table presents the difference between the aggregate fair value and aggregate unpaid principal balance of these loans held for sale:

(In thousands)	At September 30, 2016		At December 31, 2015
Fair value carrying amount	$	6,331	$	10,568
Aggregate unpaid principal amount	6,202		10,547
Fair value carrying amount less aggregate unpaid principal	$	129	$	21

Differences between the fair value carrying amount and the aggregate unpaid principal balance include changes in fair value recorded at and subsequent to funding and gains and losses on the related loan commitment prior to funding. No loans recorded under the fair value option were delinquent or on non-accrual status at September 30, 2016 or December 31, 2015. The net gain from initial measurement of the correspondent lending loans held for sale, any subsequent changes in fair value while the loans are outstanding and any actual adjustment to the gains realized upon sales of the loans totaled $2.1 million and $5.9 million for the third quarter and first nine months of 2016, respectively, compared with $1.7 million and $4.7 million for the same periods in 2015, and is included in gains on sales of consumer real estate loans, net. This amount excludes the impact from the interest rate lock commitments and forward loan sales commitments which are also included in gains on sales of consumer real estate loans, net.

Disclosures About Fair Value of Financial Instruments

Management discloses the estimated fair value of financial instruments, both assets and liabilities on and off the balance sheet, for which it is practicable to estimate fair value. These fair value estimates were made at September 30, 2016 and December 31, 2015, based on relevant market information and information about the financial instruments. Fair value estimates are intended to represent the price at which an asset could be sold or a liability could be settled. However, given there is no active market or observable market transactions for many of the Company's financial instruments, the estimates of fair values are subjective in nature, involve uncertainties and include matters of significant judgment. Changes in assumptions could significantly affect the estimated values.

The following tables present the carrying amounts and estimated fair values of the Company's financial instruments, excluding short-term financial assets and liabilities as their carrying amounts approximate fair value and excluding financial instruments recorded at fair value on a recurring basis. This information represents only a portion of TCF's balance sheet and not the estimated value of the Company as a whole. Non-financial instruments such as the intangible value of TCF's branches and core deposits, leasing operations, goodwill, premises and equipment and the future revenues from TCF's customers are not reflected in this disclosure. Therefore, this information is of limited use in assessing the value of TCF.

	Carrying Amount			Estimated Fair Value at September 30, 2016
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	59,707		$	—	$	59,707		$	—	$	59,707
Securities held to maturity	185,230			—		193,684			3,672		197,356
Loans and leases held for sale	386,673			—		—			400,494		400,494
Loans:
Consumer real estate	4,987,324			—		—			5,120,863		5,120,863
Commercial real estate	2,516,048			—		—			2,477,768		2,477,768
Commercial business	634,151			—		—			611,307		611,307
Equipment finance	1,997,295			—		—			1,987,842		1,987,842
Inventory finance	2,261,086			—		—			2,246,040		2,246,040
Auto finance	2,731,900			—		—			2,741,674		2,741,674
Other	17,886			—		—			13,642		13,642
Allowance for loan losses(1)	(155,841		)	—		—			—		—
Securitization receivable(2)	18,743			—		—			18,743		18,743
Total financial instrument assets	$	15,640,202		$	—	$	253,391		$	15,622,045	$	15,875,436
Financial instrument liabilities:
Deposits	$	17,234,206		$	12,950,914	$	4,308,873		$	—	$	17,259,787
Long-term borrowings	713,996			—		714,964			2,755		717,719
Total financial instrument liabilities	$	17,948,202		$	12,950,914	$	5,023,837		$	2,755	$	17,977,506
Financial instruments with off-balance sheet risk:(3)
Commitments to extend credit	$	21,469		$	—	$	21,469		$	—	$	21,469
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	21,434		$	—	$	21,434		$	—	$	21,434

(1) Expected credit losses are included in the estimated fair values.

(2) Carrying amounts are included in other assets.

(3) Positive amounts represent assets, negative amounts represent liabilities.

	Carrying Amount			Estimated Fair Value at December 31, 2015
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	70,537		$	—	$	70,537		$	—	$	70,537
Securities held to maturity	201,920			—		202,443			4,510		206,953
Loans and leases held for sale	157,625			—		—			165,387		165,387
Loans:
Consumer real estate	5,464,272			—		—			5,543,273		5,543,273
Commercial real estate	2,593,429			—		—			2,556,018		2,556,018
Commercial business	552,403			—		—			531,274		531,274
Equipment finance	1,909,672			—		—			1,888,664		1,888,664
Inventory finance	2,146,754			—		—			2,132,435		2,132,435
Auto finance	2,647,596			—		—			2,650,429		2,650,429
Other	19,297			—		—			14,699		14,699
Allowance for loan losses(1)	(156,054		)	—		—			—		—
Total financial instrument assets	$	15,607,451		$	—	$	272,980		$	15,486,689	$	15,759,669
Financial instrument liabilities:
Deposits	$	16,719,989		$	12,816,196	$	3,927,434		$	—	$	16,743,630
Long-term borrowings	1,034,557			—		1,035,846			5,427		1,041,273
Total financial instrument liabilities	$	17,754,546		$	12,816,196	$	4,963,280		$	5,427	$	17,784,903
Financial instruments with off-balance sheet risk:(2)
Commitments to extend credit	$	23,937		$	—	$	23,937		$	—	$	23,937
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	23,902		$	—	$	23,902		$	—	$	23,902

(1) Expected credit losses are included in the estimated fair values.

(2) Positive amounts represent assets, negative amounts represent liabilities.

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Earnings Per Common Share

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Common Share

Earnings Per Common Share

TCF's restricted stock awards that pay non-forfeitable common stock dividends meet the criteria of a participating security. Accordingly, earnings per share is calculated using the two-class method under which earnings are allocated to both common shares and participating securities.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per-share data)	2016		2015		2016		2015
Basic Earnings Per Common Share:
Net income available to common stockholders	$	51,445	$	47,728	$	147,491	$	130,090
Earnings allocated to participating securities	13		12		38		34
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding for basic earnings per common share	167,366,069		165,990,432		167,155,393		165,479,029
Basic earnings per common share	$	0.31	$	0.29	$	0.88	$	0.79
Diluted Earnings Per Common Share:
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding used in basic earnings per common share calculation	167,366,069		165,990,432		167,155,393		165,479,029
Net dilutive effect of:
Non-participating restricted stock	516,083		355,408		478,641		312,402
Stock options	85,467		210,280		73,866		221,908
Weighted-average common shares outstanding for diluted earnings per common share	167,967,619		166,556,120		167,707,900		166,013,339
Diluted earnings per common share	$	0.31	$	0.29	$	0.88	$	0.78

All shares of restricted stock are deducted from weighted-average shares outstanding for the computation of basic earnings per common share. Shares of performance-based restricted stock and restricted stock units are included in the calculation of diluted earnings per common share, using the treasury stock method, at the beginning of the quarter in which the performance goals have been achieved. All other shares of restricted stock, which vest over specified time periods, stock options and warrants are included in the calculation of diluted earnings per common share using the treasury stock method.

For the three and nine months ended September 30, 2016, there were 5.1 million of outstanding shares related to non-participating restricted stock, stock options and warrants that were not included in the computation of diluted earnings per share because they were anti-dilutive. For the three and nine months ended September 30, 2015, there were 4.4 million and 4.6 million, respectively, of outstanding shares related to non-participating restricted stock, stock options and warrants that were not included in the computation of diluted earnings per share because they were anti-dilutive.

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Other Expense

9 Months Ended

Sep. 30, 2016

Other Income and Expenses [Abstract]

Other Expense

Other Expense

Other expense consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2016		2015		2016		2015
Loan and lease processing	$	7,035	$	6,626	$	19,526	$	17,950
Professional fees	3,993		5,034		13,170		15,793
Card processing and issuance cost	3,952		3,914		11,634		12,855
Outside processing	3,728		3,383		10,941		10,413
Travel	2,888		2,704		9,185		8,372
Telecommunications	2,696		2,720		8,477		8,918
Other	25,559		21,369		70,253		65,469
Total other expense	$	49,851	$	45,750	$	143,186	$	139,770

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Business Segments

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Business Segments

Business Segments

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented in these financial statements. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Consumer Banking is comprised of all of the Company's consumer-facing businesses and includes retail banking, consumer real estate and auto finance. Wholesale Banking is comprised of commercial real estate and business lending, leasing and equipment finance and inventory finance. Enterprise Services is comprised of (i) corporate treasury, which includes TCF's investment and borrowing portfolios and management of capital, debt and market risks; (ii) corporate functions, such as information technology, risk and credit management, bank operations, finance and human resources, that provide services to the operating segments; (iii) the Holding Company; (iv) and eliminations.

TCF evaluates performance and allocates resources based on each reportable segment's net income or loss. The reportable segments follow GAAP as described in Note 1, Summary of Significant Accounting Policies, in Item 8 of TCF's 2015 Annual Report on Form 10-K, except for the accounting for intercompany interest income and interest expense, which are eliminated in consolidation, and presenting net interest income on a fully tax-equivalent basis. TCF generally accounts for inter-segment sales and transfers at cost.

The following tables set forth certain information for each of TCF's reportable segments, including a reconciliation of TCF's consolidated totals:

(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Three Months Ended September 30, 2016:
Net interest income	$	140,887	$	85,721	$	(14,590	)	$	212,018
Provision for credit losses	10,720		3,174		—			13,894
Non-interest income	89,373		30,393		(92		)	119,674
Non-interest expense	165,668		61,382		1,828			228,878
Income tax expense (benefit)	19,367		17,355		(6,465		)	30,257
Income (loss) after income tax expense (benefit)	34,505		34,203		(10,045		)	58,663
Income attributable to non-controlling interest	—		2,371		—			2,371
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	34,505	$	31,832	$	(14,892	)	$	51,445
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	111,107	$	112,834	$	8,785		$	232,726
Non-interest income	89,373		30,393		(92		)	119,674
Total	$	200,480	$	143,227	$	8,693		$	352,400
At or For the Three Months Ended September 30, 2015:
Net interest income	$	136,160	$	83,717	$	(14,607	)	$	205,270
Provision for credit losses	8,284		1,734		—			10,018
Non-interest income	81,518		29,856		878			112,252
Non-interest expense	160,624		59,430		2,230			222,284
Income tax expense (benefit)	18,311		18,526		(6,309		)	30,528
Income (loss) after income tax expense (benefit)	30,459		33,883		(9,650		)	54,692
Income attributable to non-controlling interest	—		2,117		—			2,117
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	30,459	$	31,766	$	(14,497	)	$	47,728
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	110,420	$	106,629	$	6,555		$	223,604
Non-interest income	81,518		29,856		878			112,252
Total	$	191,938	$	136,485	$	7,433		$	335,856

(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Nine Months Ended September 30, 2016:
Net interest income	$	420,886	$	257,917	$	(42,143	)	$	636,660
Provision for credit losses	36,278		9,708		—			45,986
Non-interest income	254,130		94,794		1,308			350,232
Non-interest expense	491,632		184,217		8,679			684,528
Income tax expense (benefit)	52,824		52,866		(18,924		)	86,766
Income (loss) after income tax expense (benefit)	94,282		105,920		(30,590		)	169,612
Income attributable to non-controlling interest	—		7,580		—			7,580
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	94,282	$	98,340	$	(45,131	)	$	147,491
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	336,176	$	338,461	$	24,435		$	699,072
Non-interest income	254,130		94,794		1,308			350,232
Total	$	590,306	$	433,255	$	25,743		$	1,049,304
At or For the Nine Months Ended September 30, 2015:
Net interest income	$	402,127	$	254,247	$	(41,655	)	$	614,719
Provision for credit losses	30,184		5,153		—			35,337
Non-interest income	239,782		84,463		2,094			326,339
Non-interest expense	482,900		180,225		9,035			672,160
Income tax expense (benefit)	47,850		53,947		(19,539		)	82,258
Income (loss) after income tax expense (benefit)	80,975		99,385		(29,057		)	151,303
Income attributable to non-controlling interest	—		6,672		—			6,672
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	80,975	$	92,713	$	(43,598	)	$	130,090
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	325,826	$	322,347	$	18,306		$	666,479
Non-interest income	239,782		84,463		2,094			326,339
Total	$	565,608	$	406,810	$	20,400		$	992,818

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Litigation Contingencies

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Litigation Contingencies

Litigation Contingencies

From time to time TCF is a party to legal proceedings arising out of its lending, leasing and deposit operations, including foreclosure proceedings and other collection actions as part of its lending and leasing collections activities. TCF may also be subject to regulatory examinations and enforcement actions brought by federal regulators, including the Securities and Exchange Commission, the Federal Reserve, the OCC and the Consumer Financial Protection Bureau ("CFPB") and TCF's regulatory authorities may impose sanctions on TCF for failures related to regulatory compliance. From time to time borrowers and other customers, and employees and former employees have also brought actions against TCF, in some cases claiming substantial damages. TCF and other financial services companies are subject to the risk of class action litigation. Litigation is often unpredictable and the actual results of litigation cannot be determined and therefore the ultimate resolution of a matter and the possible range of loss associated with certain potential outcomes cannot be established. Except as discussed below, based on our current understanding of TCF's pending legal proceedings, management does not believe that judgments or settlements arising from pending or threatened legal matters, individually or in the aggregate, would have a material adverse effect on the consolidated financial position, operating results or cash flows of TCF.

On October 29, 2015, TCF received a Notice and Opportunity to Respond and Advise letter ("NORA Letter") from the CFPB notifying TCF that the CFPB's Office of Enforcement is considering recommending that the CFPB take legal action against TCF related to compliance with laws relating to unfair, deceptive and abusive acts and practices and Regulation E, §1005.17, in connection with TCF's practices in administering checking account overdraft program "opt-in" requirements. The purpose of a NORA Letter is to ensure that potential subjects of enforcement actions have the opportunity to present their positions to the CFPB before an enforcement action is recommended or commenced and TCF has provided the CFPB with a written statement setting forth the reasons of law and policy why it believes that the CFPB should not take action. TCF is in discussions with the CFPB and is seeking to reach an appropriate resolution of the matter. We are currently unable to predict the ultimate timing or outcome of this matter. There can be no assurance that the CFPB will not utilize its enforcement authority through settlement, administrative proceedings or litigation and seek remediation, disgorgement, penalties, other monetary relief, injunctive relief or changes to TCF's business practices or operations, which could have a material adverse effect on TCF.

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Accumulated Other Comprehensive Income

9 Months Ended

Sep. 30, 2016

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)

The components of other comprehensive income (loss) and the related tax effects are presented in the table below.

	Three Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	(7,624	)	$	2,896		$	(4,728	)	$	9,972		$	(3,766	)	$	6,206
Reclassification of net (gains) losses to net income	425			(161		)	264			281			(106		)	175
Net unrealized gains (losses)	(7,199		)	2,735			(4,464		)	10,253			(3,872		)	6,381
Net investment hedges:
Unrealized gains (losses) arising during the period	904			(343		)	561			2,858			(1,079		)	1,779
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	(957		)	—			(957		)	(3,049		)	—			(3,049		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(12		)	4			(8		)	(12		)	4			(8		)
Total other comprehensive income (loss)	$	(7,264	)	$	2,396		$	(4,868	)	$	10,050		$	(4,947	)	$	5,103
	Nine Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	32,639		$	(12,396	)	$	20,243		$	2,971		$	(1,122	)	$	1,849
Reclassification of net (gains) losses to net income	1,448			(550		)	898			871			(329		)	542
Net unrealized gains (losses)	34,087			(12,946		)	21,141			3,842			(1,451		)	2,391
Net investment hedges:
Unrealized gains (losses) arising during the period	(2,691		)	1,022			(1,669		)	5,772			(2,180		)	3,592
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	2,791			—			2,791			(6,318		)	—			(6,318		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(35		)	13			(22		)	(35		)	13			(22		)
Total other comprehensive income (loss)	$	34,152		$	(11,911	)	$	22,241		$	3,261		$	(3,618	)	$	(357	)

(1)  Foreign investments are deemed to be permanent in nature and therefore TCF does not provide for taxes on foreign currency translation adjustments.

Reclassifications of net (gains) losses to net income for securities available for sale and interest-only strips were recorded in the Consolidated Statements of Income in gains (losses) on securities, net for sales of securities, in interest income for those securities that were previously transferred to held to maturity and in other non-interest expense for interest-only strips. During 2014, TCF transferred $191.7 million of available for sale mortgage-backed securities to held to maturity. At September 30, 2016 and 2015, the unrealized holding loss on the transferred securities retained in accumulated other comprehensive income (loss) totaled $13.3 million and $15.1 million, respectively. These amounts are amortized over the remaining lives of the transferred securities. The tax effect of these reclassifications was recorded in income tax expense in the Consolidated Statements of Income. See Note 11, Employee Benefit Plans, for additional information regarding TCF's recognized postretirement prior service cost.

Accumulated other comprehensive income (loss) balances are presented in the table below.

(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	15,898		$	5,019		$	(9,316	)	$	162		$	11,763
Other comprehensive income (loss)	(4,728		)	561			(957		)	—			(5,124		)
Amounts reclassified from accumulated other comprehensive income (loss)	264			—			—			(8		)	256
Net other comprehensive income (loss)	(4,464		)	561			(957		)	(8		)	(4,868		)
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	(12,881	)	$	4,349		$	(8,029	)	$	191		$	(16,370	)
Other comprehensive income (loss)	6,206			1,779			(3,049		)	—			4,936
Amounts reclassified from accumulated other comprehensive income (loss)	175			—			—			(8		)	167
Net other comprehensive income (loss)	6,381			1,779			(3,049		)	(8		)	5,103
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)
(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	(9,707	)	$	7,249		$	(13,064	)	$	176		$	(15,346	)
Other comprehensive income (loss)	20,243			(1,669		)	2,791			—			21,365
Amounts reclassified from accumulated other comprehensive income (loss)	898			—			—			(22		)	876
Net other comprehensive income (loss)	21,141			(1,669		)	2,791			(22		)	22,241
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	(8,891	)	$	2,536		$	(4,760	)	$	205		$	(10,910	)
Other comprehensive income (loss)	1,849			3,592			(6,318		)	—			(877		)
Amounts reclassified from accumulated other comprehensive income (loss)	542			—			—			(22		)	520
Net other comprehensive income (loss)	2,391			3,592			(6,318		)	(22		)	(357		)
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

TCF Financial Corporation (together with its direct and indirect subsidiaries, "we," "us," "our," "TCF" or the "Company"), a Delaware corporation, is a national bank holding company based in Wayzata, Minnesota. References herein to "TCF Financial" or the "Holding Company" refer to TCF Financial Corporation on an unconsolidated basis. TCF's principal subsidiary, TCF National Bank ("TCF Bank"), is headquartered in Sioux Falls, South Dakota.

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, therefore do not include all of the information and notes necessary for complete financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"). The information in this Quarterly Report on Form 10-Q is written with the presumption that the users of the interim financial statements have read or have access to the Company's most recent Annual Report on Form 10-K, which contains the latest audited financial statements and notes thereto, together with Management's Discussion and Analysis of Financial Condition and Results of Operations at December 31, 2015, and for the year then ended. All significant intercompany accounts and transactions have been eliminated in consolidation. Accounting policies in effect at December 31, 2015 remain significantly unchanged and have been followed similarly as in previous periods.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited consolidated financial statements contain all the significant adjustments, consisting of normal recurring items, considered necessary for fair presentation. The results of operations for interim periods are not necessarily indicative of the results to be expected for the entire year.

New Accounting Pronouncement

Effective January 1, 2016, the Company retrospectively adopted Accounting Standards Update ("ASU") No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which required that debt issuance costs be presented as a direct deduction from debt. Accordingly, the Company reclassified unamortized debt issuance costs of $2.1 million from Other assets to a reduction in Long-term borrowings on the Consolidated Statement of Financial Condition as of December 31, 2015. The adoption of this ASU did not impact results of operations, retained earnings or cash flows.

Change in Segment Reporting

Effective January 1, 2016, the Company changed its reportable segments to align with the way the Company is now managed. The revised presentation of previously reported segment data has been applied retroactively to all periods presented in these financial statements. The new reportable segments are Consumer Banking, Wholesale Banking and Enterprise Services. Previously, the Company's reportable segments were Lending, Funding and Support Services. The reportable segments follow GAAP as described in Note 1, Summary of Significant Accounting Policies, in Item 8 of TCF's 2015 Annual Report on Form 10-K, except for the accounting for intercompany interest income and interest expense, which are eliminated in consolidation, and presenting net interest income on a fully tax-equivalent basis. See Note 16, Business Segments for a description of the new segments.

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Securities Available for Sale and Securities Held to Maturity (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of securities

Securities consisted of the following:

	At September 30, 2016								At December 31, 2015
(In thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	791,208	$	14,120	$	53	$	805,275	$	627,521	$	655	$	6,246	$	621,930
Other	22		—		—		22		34		—		—		34
Obligations of states and political subdivisions	597,594		17,573		643		614,524		262,189		4,732		—		266,921
Total securities available for sale	$	1,388,824	$	31,693	$	696	$	1,419,821	$	889,744	$	5,387	$	6,246	$	888,885
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	181,558	$	12,158	$	32	$	193,684	$	197,410	$	5,247	$	214	$	202,443
Other	872		—		—		872		1,110		—		—		1,110
Other securities	2,800		—		—		2,800		3,400		—		—		3,400
Total securities held to maturity	$	185,230	$	12,158	$	32	$	197,356	$	201,920	$	5,247	$	214	$	206,953

Schedule of gross unrealized losses and fair value of securities available for sale and securities held to maturity that are in a loss position

The following tables show the gross unrealized losses and fair value of securities available for sale and securities held to maturity at September 30, 2016 and December 31, 2015, aggregated by investment category and the length of time the securities were in a continuous loss position:

	At September 30, 2016
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	32,870	$	53	$	—	$	—	$	32,870	$	53
Obligations of states and political subdivisions	74,474		643		—		—		74,474		643
Total securities available for sale	$	107,344	$	696	$	—	$	—	$	107,344	$	696
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	1,964	$	32	$	—	$	—	$	1,964	$	32
Total securities held to maturity	$	1,964	$	32	$	—	$	—	$	1,964	$	32

	At December 31, 2015
	Less than 12 months				12 months or more				Total
(In thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Total securities available for sale	$	552,127	$	6,246	$	—	$	—	$	552,127	$	6,246
Securities held to maturity:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214
Total securities held to maturity	$	12,333	$	100	$	1,732	$	114	$	14,065	$	214

Schedule of amortized cost and fair value of securities available for sale and securities held to maturity by contractual maturity

The amortized cost and fair value of securities available for sale and securities held to maturity by final contractual maturity at September 30, 2016 and December 31, 2015 are shown below. The remaining contractual principal maturities do not consider possible prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay.

	At September 30, 2016				At December 31, 2015
(In thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Securities available for sale:
Due in one year or less	$	1	$	1	$	1	$	1
Due in 1-5 years	22		22		38		38
Due in 5-10 years	307,812		320,329		268,638		272,511
Due after 10 years	1,080,989		1,099,469		621,067		616,335
Total securities available for sale	$	1,388,824	$	1,419,821	$	889,744	$	888,885
Securities held to maturity:
Due in one year or less	$	—	$	—	$	100	$	100
Due in 1-5 years	1,200		1,200		1,900		1,900
Due in 5-10 years	1,600		1,600		1,400		1,400
Due after 10 years	182,430		194,556		198,520		203,553
Total securities held to maturity	$	185,230	$	197,356	$	201,920	$	206,953

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Loans and Leases (Tables)

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Information about loans and leases

Loans and leases consisted of the following:

(Dollars in thousands)	At September 30, 2016		At December 31, 2015		Percent Change
Consumer real estate:
First mortgage lien	$	2,313,044	$	2,624,956	(11.9	)%
Junior lien	2,674,280		2,839,316		(5.8	)
Total consumer real estate	4,987,324		5,464,272		(8.7	)
Commercial:
Commercial real estate:
Permanent	2,214,685		2,267,218		(2.3	)
Construction and development	301,363		326,211		(7.6	)
Total commercial real estate	2,516,048		2,593,429		(3.0	)
Commercial business	634,151		552,403		14.8
Total commercial	3,150,199		3,145,832		0.1
Leasing and equipment finance	4,236,224		4,012,248		5.6
Inventory finance	2,261,086		2,146,754		5.3
Auto finance	2,731,900		2,647,596		3.2
Other	17,886		19,297		(7.3	)
Total loans and leases(1)	$	17,384,619	$	17,435,999	(0.3	)

(1) Loans and leases are reported at historical cost including net direct fees and costs associated with originating and acquiring loans and leases, lease residuals, unearned income and unamortized purchase premiums and discounts. The aggregate amount of these loan and lease adjustments was $62.5 million and $73.7 million at September 30, 2016 and December 31, 2015, respectively.

Loan sales transaction table

The following table summarizes the carrying value of consumer real estate loans and consumer auto loans sold with servicing retained, cash received, securitization receivable recorded, interest-only strips received and recognized net gains for the three and nine months ended September 30, 2016 and 2015. No servicing assets or liabilities related to consumer real estate or consumer auto loans were recorded within TCF's Consolidated Statements of Financial Condition, as the contractual servicing fees are adequate to compensate TCF for its servicing responsibilities based on the amount demanded by the marketplace.

	Three Months Ended September 30,													Nine Months Ended September 30,
(In thousands)	2016						2015							2016						2015
	Consumer Real Estate Loans			Consumer Auto Loans				Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans			Consumer Real Estate Loans			Consumer Auto Loans
Sales proceeds, net(1)	$	450,666		$	631,511			$	250,994		$	452,249		$	1,129,251		$	1,614,213		$	898,387		$	1,113,036
Recorded investment in loans sold, including accrued interest	(438,900		)	(619,324		)		(246,793		)	(441,477		)	(1,107,327		)	(1,603,413		)	(878,468		)	(1,084,348		)
Securitization receivable	—			—				—			—			—			18,620			—			—
Interest-only strips, initial value	2,513			—				2,711			—			13,426			5,695			6,948			—
Net gains(2)	$	14,279		$	12,187			$	6,912		$	10,772		$	35,350		$	35,115		$	26,867		$	28,688

(1) Includes transaction fees and other sales related costs.

(2) Excludes subsequent adjustments and valuation adjustments while held for sale.

Interest only strips and contractual liabilites

Total interest-only strips and the contractual liabilities related to loan sales are shown below.

(In thousands)	At September 30, 2016		At December 31, 2015
Interest-only strips attributable to:
Consumer real estate loan sales	$	27,238	$	19,182
Consumer auto loan sales	15,907		25,150
Contractual liabilities attributable to:
Consumer real estate loan sales	$	772	$	702
Consumer auto loan sales	173		185

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Allowance for Loan and Lease Losses and Credit Quality Information (Tables)

9 Months Ended

Sep. 30, 2016

Allowance for Loan and Lease Losses and Credit Quality Information

Allowance for loan and lease losses and other information

The following tables provide the allowance for loan and lease losses and other related information. TCF's key credit quality indicator is the receivable's payment performance status, defined as accruing or non-accruing.

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	64,765		$	31,161		$	20,124		$	12,084		$	29,772		$	666		$	158,572
Charge-offs	(4,058		)	(4		)	(2,513		)	(697		)	(6,756		)	(2,216		)	(16,244		)
Recoveries	1,838			80			671			129			999			1,062			4,779
Net (charge-offs) recoveries	(2,220		)	76			(1,842		)	(568		)	(5,757		)	(1,154		)	(11,465		)
Provision for credit losses	1,402			411			2,367			335			8,361			1,018			13,894
Other	(1,855		)	—			—			(44		)	(3,261		)	—			(5,160		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	74,687		$	30,205		$	17,669		$	10,879		$	22,061		$	614		$	156,115
Charge-offs	(6,310		)	(487		)	(1,583		)	(463		)	(4,594		)	(1,901		)	(15,338		)
Recoveries	1,832			514			702			319			915			1,115			5,397
Net (charge-offs) recoveries	(4,478		)	27			(881		)	(144		)	(3,679		)	(786		)	(9,941		)
Provision for credit losses	780			(226		)	1,389			546			6,750			779			10,018
Other	(660		)	—			—			(160		)	(1,410		)	—			(2,230		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

(In thousands)	Consumer Real Estate			Commercial			Leasing and Equipment Finance			Inventory Finance			Auto Finance			Other			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	67,992		$	30,185		$	19,018		$	11,128		$	26,486		$	1,245		$	156,054
Charge-offs	(14,550		)	(668		)	(6,125		)	(2,084		)	(18,683		)	(5,524		)	(47,634		)
Recoveries	5,094			330			1,834			696			2,743			3,435			14,132
Net (charge-offs) recoveries	(9,456		)	(338		)	(4,291		)	(1,388		)	(15,940		)	(2,089		)	(33,502		)
Provision for credit losses	8,963			1,801			5,922			1,925			26,001			1,374			45,986
Other	(5,407		)	—			—			142			(7,432		)	—			(12,697		)
Balance, end of period	$	62,092		$	31,648		$	20,649		$	11,807		$	29,115		$	530		$	155,841
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	85,361		$	31,367		$	18,446		$	10,020		$	18,230		$	745		$	164,169
Charge-offs	(27,074		)	(3,944		)	(5,447		)	(1,812		)	(12,943		)	(5,226		)	(56,446		)
Recoveries	5,626			2,878			2,205			626			2,253			3,902			17,490
Net (charge-offs) recoveries	(21,448		)	(1,066		)	(3,242		)	(1,186		)	(10,690		)	(1,324		)	(38,956		)
Provision for credit losses	8,660			(295		)	2,973			2,627			20,186			1,186			35,337
Other	(2,244		)	—			—			(340		)	(4,004		)	—			(6,588		)
Balance, end of period	$	70,329		$	30,006		$	18,177		$	11,121		$	23,722		$	607		$	153,962

Allowance for loan and lease losses and balances by type of allowance methodology

The following tables provide information regarding the allowance for loan and lease losses and balances by type of allowance methodology:

	At September 30, 2016
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment Finance		Inventory Finance		Auto Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	37,035	$	31,516	$	18,447	$	11,582	$	27,723	$	528	$	126,831
Individually evaluated for impairment	25,057		132		2,202		225		1,392		2		29,010
Total	$	62,092	$	31,648	$	20,649	$	11,807	$	29,115	$	530	$	155,841
Loans and leases outstanding:
Collectively evaluated for impairment	$	4,779,921	$	3,101,536	$	4,219,280	$	2,259,513	$	2,722,343	$	17,878	$	17,100,471
Individually evaluated for impairment	207,403		48,663		16,924		1,573		9,556		8		284,127
Loans acquired with deteriorated credit quality	—		—		20		—		1		—		21
Total	$	4,987,324	$	3,150,199	$	4,236,224	$	2,261,086	$	2,731,900	$	17,886	$	17,384,619

	At December 31, 2015
(In thousands)	Consumer Real Estate		Commercial		Leasing and Equipment  Finance		Inventory  Finance		Auto  Finance		Other		Total
Allowance for loan and lease losses:
Collectively evaluated for impairment	$	38,819	$	30,170	$	16,994	$	10,929	$	23,471	$	1,243	$	121,626
Individually evaluated for impairment	29,173		15		2,024		199		3,015		2		34,428
Total	$	67,992	$	30,185	$	19,018	$	11,128	$	26,486	$	1,245	$	156,054
Loans and leases outstanding:
Collectively evaluated for impairment	$	5,248,829	$	3,092,398	$	3,997,544	$	2,145,605	$	2,637,269	$	19,286	$	17,140,931
Individually evaluated for impairment	215,443		53,434		14,669		1,149		10,308		11		295,014
Loans acquired with deteriorated credit quality	—		—		35		—		19		—		54
Total	$	5,464,272	$	3,145,832	$	4,012,248	$	2,146,754	$	2,647,596	$	19,297	$	17,435,999

Information regarding accruing and non-accruing loans and leases

The following tables set forth information regarding TCF's accruing and non-accrual loans and leases. Non-accrual loans and leases are those which management believes have a higher risk of loss. Delinquent balances are determined based on the contractual terms of the loan or lease.

	At September 30, 2016
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,191,920	$	6,546	$	1,339	$	2,199,805	$	113,239	$	2,313,044
Junior lien	2,627,405		696		—		2,628,101		46,179		2,674,280
Total consumer real estate	4,819,325		7,242		1,339		4,827,906		159,418		4,987,324
Commercial:
Commercial real estate	2,510,197		258		—		2,510,455		5,593		2,516,048
Commercial business	630,562		—		—		630,562		3,589		634,151
Total commercial	3,140,759		258		—		3,141,017		9,182		3,150,199
Leasing and equipment finance	4,217,716		4,902		1,184		4,223,802		12,288		4,236,090
Inventory finance	2,259,303		175		35		2,259,513		1,573		2,261,086
Auto finance	2,718,904		3,471		1,944		2,724,319		7,581		2,731,900
Other	17,873		5		3		17,881		5		17,886
Subtotal	17,173,880		16,053		4,505		17,194,438		190,047		17,384,485
Portfolios acquired with deteriorated credit quality	130		4		—		134		—		134
Total	$	17,174,010	$	16,057	$	4,505	$	17,194,572	$	190,047	$	17,384,619

	At December 31, 2015
(In thousands)	Current-59 Days Delinquent and Accruing		60-89 Days  Delinquent  and Accruing		90 Days or More Delinquent and Accruing		Total  Accruing		Non-accrual		Total
Consumer real estate:
First mortgage lien	$	2,489,235	$	8,649	$	2,916	$	2,500,800	$	124,156	$	2,624,956
Junior lien	2,793,684		1,481		38		2,795,203		44,113		2,839,316
Total consumer real estate	5,282,919		10,130		2,954		5,296,003		168,269		5,464,272
Commercial:
Commercial real estate	2,586,692		—		—		2,586,692		6,737		2,593,429
Commercial business	548,814		1		—		548,815		3,588		552,403
Total commercial	3,135,506		1		—		3,135,507		10,325		3,145,832
Leasing and equipment finance	3,998,469		1,728		564		4,000,761		11,262		4,012,023
Inventory finance	2,145,538		87		31		2,145,656		1,098		2,146,754
Auto finance	2,634,496		2,343		1,230		2,638,069		9,509		2,647,578
Other	19,274		13		7		19,294		3		19,297
Subtotal	17,216,202		14,302		4,786		17,235,290		200,466		17,435,756
Portfolios acquired with deteriorated credit quality	242		1		—		243		—		243
Total	$	17,216,444	$	14,303	$	4,786	$	17,235,533	$	200,466	$	17,435,999

Interest income recognized on loans and leases in non-accrual status and contractual interest

The following table provides interest income recognized on loans and leases in non-accrual status and contractual interest that would have been recorded had the loans and leases performed in accordance with their original contractual terms:

	Three Months Ended   September 30,				Nine Months Ended   September 30,
(In thousands)	2016		2015		2016		2015
Contractual interest due on non-accrual loans and leases	$	5,127	$	5,428	$	15,604	$	15,992
Interest income recognized on non-accrual loans and leases	1,048		1,021		3,097		3,319
Unrecognized interest income	$	4,079	$	4,407	$	12,507	$	12,673

Summary of consumer real estate loans to customers in bankruptcy

The following table provides information regarding consumer real estate loans to customers currently involved in ongoing Chapter 7 or Chapter 13 bankruptcy proceedings which have not yet been discharged, dismissed or completed: 

(In thousands)	At September 30, 2016		At December 31, 2015
Consumer real estate loans to customers in bankruptcy:
0-59 days delinquent and accruing	$	15,273	$	26,020
Non-accrual	23,493		20,264
Total consumer real estate loans to customers in bankruptcy	$	38,766	$	46,284

Schedule of accruing loans that were restructured within 12 months and defaulted

The table below summarizes TDR loans that defaulted during the three and nine months ended September 30, 2016 and 2015, which were modified during the respective reporting period or within one year of the beginning of the respective reporting period. TCF considers a loan to have defaulted when under the modified terms it becomes 90 or more days delinquent, has been transferred to non-accrual status, has been charged down or has been transferred to other real estate owned or repossessed and returned assets.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2016		2015		2016		2015
Loan balance:(1)
Consumer real estate:
First mortgage lien	$	2,150	$	158	$	6,635	$	1,456
Junior lien	179		248		676		799
Total consumer real estate	2,329		406		7,311		2,255
Auto finance	334		282		1,233		676
Defaulted TDR loans modified during the applicable period	$	2,663	$	688	$	8,544	$	2,931

(1) The loan balances presented are not materially different than the pre-modification loan balances as TCF's loan modifications generally do not forgive principal amounts.

Impaired loans included in previous amounts disclosed within performing and non-accrual loans and leases and loan modifications for borrowers with financial difficulties

The following table summarizes impaired loans:

	At September 30, 2016						At December 31, 2015
(In thousands)	Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded		Unpaid Contractual Balance		Loan Balance		Related Allowance Recorded
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	128,615	$	108,903	$	17,899	$	145,749	$	123,728	$	20,880
Junior lien	64,977		53,281		6,232		70,122		58,366		6,837
Total consumer real estate	193,592		162,184		24,131		215,871		182,094		27,717
Commercial:
Commercial real estate	12,762		12,762		129		298		298		12
Commercial business	14		14		3		16		16		3
Total commercial	12,776		12,776		132		314		314		15
Leasing and equipment finance	10,670		10,670		1,356		7,259		7,259		822
Inventory finance	1,179		1,185		225		867		873		199
Auto finance	6,052		5,705		1,327		8,275		8,062		2,942
Other	7		8		2		21		11		2
Total impaired loans with an allowance recorded	224,276		192,528		27,173		232,607		198,613		31,697
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	18,853		13,331		—		7,100		3,228		—
Junior lien	27,369		2,217		—		26,031		520		—
Total consumer real estate	46,222		15,548		—		33,131		3,748		—
Commercial:
Commercial real estate	20,039		14,301		—		37,598		31,157		—
Commercial business	4,041		3,589		—		3,738		3,585		—
Total commercial	24,080		17,890		—		41,336		34,742		—
Inventory finance	385		388		—		274		276		—
Auto finance	3,708		2,336		—		2,003		1,177		—
Other	85		—		—		2		—		—
Total impaired loans without an allowance recorded	74,480		36,162		—		76,746		39,943		—
Total impaired loans	$	298,756	$	228,690	$	27,173	$	309,353	$	238,556	$	31,697

Average balance of impaired loans and interest income recognized on impaired loans

The average loan balance of impaired loans and interest income recognized on impaired loans during the three and nine months ended September 30, 2016 and 2015 are included within the table below.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2016				2015				2016				2015
(In thousands)	Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized		Average Loan Balance		Interest Income Recognized
Impaired loans with an allowance recorded:
Consumer real estate:
First mortgage lien	$	114,966	$	944	$	126,426	$	1,513	$	116,315	$	2,762	$	113,365	$	3,971
Junior lien	54,651		675		60,298		906		55,824		1,993		57,387		2,446
Total consumer real estate	169,617		1,619		186,724		2,419		172,139		4,755		170,752		6,417
Commercial:
Commercial real estate	12,926		100		19,183		174		6,530		230		36,143		777
Commercial business	15		—		18		—		15		—		17		—
Total commercial	12,941		100		19,201		174		6,545		230		36,160		777
Leasing and equipment finance	10,844		3		6,084		8		8,963		21		7,123		16
Inventory finance	777		10		1,869		17		1,030		41		1,529		66
Auto finance	5,871		33		5,309		8		6,883		72		4,557		8
Other	8		—		17		1		10		—		53		2
Total impaired loans with an allowance recorded	200,058		1,765		219,204		2,627		195,570		5,119		220,174		7,286
Impaired loans without an allowance recorded:
Consumer real estate:
First mortgage lien	8,023		120		5,633		138		8,280		228		20,422		919
Junior lien	1,348		170		286		408		1,368		485		3,975		1,403
Total consumer real estate	9,371		290		5,919		546		9,648		713		24,397		2,322
Commercial:
Commercial real estate	15,101		170		37,109		507		22,729		606		41,988		1,674
Commercial business	3,869		—		2,014		—		3,587		—		2,077		5
Total commercial	18,970		170		39,123		507		26,316		606		44,065		1,679
Inventory finance	333		35		497		22		332		69		693		77
Auto finance	2,241		—		1,134		—		1,757		—		909		—
Total impaired loans without an allowance recorded	30,915		495		46,673		1,075		38,053		1,388		70,064		4,078
Total impaired loans	$	230,973	$	2,260	$	265,877	$	3,702	$	233,623	$	6,507	$	290,238	$	11,364

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Deposits (Tables)

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Summary of deposits

Deposits consisted of the following:

	At September 30, 2016						At December 31, 2015
(Dollars in thousands)	Weighted-Average Rate		Amount		% of Total		Weighted-Average Rate		Amount		% of Total
Checking:
Non-interest bearing	—	%	$	3,350,978	19.4	%	—	%	$	3,187,581	19.1	%
Interest bearing	0.01		2,479,079		14.4		0.02		2,502,978		14.9
Total checking	0.01		5,830,057		33.8		0.01		5,690,559		34.0
Savings	0.03		4,670,281		27.1		0.06		4,717,457		28.2
Money market	0.62		2,450,576		14.2		0.63		2,408,180		14.5
Certificates of deposit	1.06		4,283,292		24.9		0.91		3,903,793		23.3
Total deposits	0.36		$	17,234,206	100.0	%	0.30		$	16,719,989	100.0	%

Schedule of certificates of deposit remaining maturities

Certificates of deposit had the following remaining maturities at September 30, 2016:

(In thousands)	Denominations  $100 Thousand or Greater		Denominations Less Than  $100 Thousand		Total
Maturity:
Three months or less	$	355,778	$	341,958	$	697,736
Over three through six months	382,681		383,483		766,164
Over six through 12 months	756,120		756,972		1,513,092
Over 12 months	660,307		645,993		1,306,300
Total	$	2,154,886	$	2,128,406	$	4,283,292

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Short-term Borrowings (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of selected information for short-term borrowings (borrowings with an original maturity of one year or less)

Selected information for short-term borrowings (borrowings with an original maturity of one year or less) consisted of the following:

	At September 30, 2016				At December 31, 2015
(Dollars in thousands)	Amount		Rate		Amount		Rate
Period end balance:
Securities sold under repurchase agreements	$	1,514	0.10	%	$	5,381	0.03	%
Total	$	1,514	0.10		$	5,381	0.03
Average daily balances for the period ended:
Federal funds purchased	$	113	0.75	%	$	225	0.45	%
Securities sold under repurchase agreements	5,771		0.39		16,431		0.06
Line of Credit - TCF Commercial Finance Canada, Inc.	1,834		1.75		2,166		1.96
Total	$	7,718	0.72		$	18,822	0.28
Maximum month-end balances for the period ended:
Securities sold under repurchase agreements	$	3,391	N.A.		$	62,995	N.A.
Line of Credit - TCF Commercial Finance Canada, Inc.	5,907		N.A.		5,519		N.A.
N.A. Not Applicable.

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Long-term Borrowings (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Information about long-term borrowings

Long-term borrowings consisted of the following:

		At September 30, 2016							At December 31, 2015
(Dollars in thousands)	Stated Maturity	Amount		Stated Rate					Amount			Stated Rate
Federal Home Loan Bank advances	2016	$	150,000	0.71	%	-	0.72	%	$	447,000		0.54	%	-	1.17	%
	2017	—					—		125,000			0.49		-	0.51
	2018	150,000					0.54		—						—
Subtotal		300,000							572,000
Subordinated bank notes	2016	—					—		74,992						5.50
	2022	108,603					6.25		108,454						6.25
	2025	148,003					4.60		147,861						4.60
Hedge-related basis adjustment(1)		7,659							(209		)
Subtotal		264,265							331,098
Discounted lease rentals	2016	15,154		2.46		-	6.88		48,120			2.39		-	7.95
	2017	56,434		2.45		-	7.88		41,969			2.45		-	7.88
	2018	40,221		2.55		-	7.95		24,496			2.55		-	7.95
	2019	21,566		2.53		-	6.00		9,329			2.53		-	6.00
	2020	10,093		2.64		-	6.90		2,035			2.95		-	5.15
	2021	3,508		2.88		-	4.57		83						4.57
Subtotal		146,976							126,032
Other long-term borrowings	2016	—					—		2,685						1.36
	2017	2,755					1.36		2,742						1.36
Subtotal		2,755							5,427
Total long-term borrowings		$	713,996						$	1,034,557

(1) Related to subordinated bank notes with a stated maturity of 2025.

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Regulatory Capital Requirements (Tables)

9 Months Ended

Sep. 30, 2016

Regulatory Capital Requirements [Abstract]

Schedule of regulatory capital information for TCF and TCF Bank

The following table presents regulatory capital information for TCF and TCF Bank:

	TCF						TCF Bank
	At September 30,			At December 31,			At September 30,			At December 31,			Well-capitalized Standard		Minimum Capital Requirement(1)
(Dollars in thousands)	2016			2015			2016			2015
Regulatory Capital:
Common equity Tier 1 capital	$	1,936,029		$	1,814,442		$	2,110,923		$	1,992,584
Tier 1 capital	2,215,312			2,092,195			2,129,849			2,008,585
Total capital	2,596,697			2,487,060			2,546,708			2,425,682
Regulatory Capital Ratios:
Common equity Tier 1 capital ratio	10.35		%	10.00		%	11.29		%	10.99		%	6.50	%	4.50	%
Tier 1 risk-based capital ratio	11.85			11.54			11.39			11.07			8.00		6.00
Total risk-based capital ratio	13.89			13.71			13.62			13.37			10.00		8.00
Tier 1 leverage ratio	10.66			10.46			10.25			10.04			5.00		4.00

(1) Excludes capital conservation buffer of 0.625% as of September 30, 2016.

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Stock Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Restricted Stock and Stock Option Transactions under the Company Financial Incentive Stock Program

The following table reflects TCF's restricted stock and stock option transactions under the TCF Financial 2015 Omnibus Incentive Plan ("Omnibus Incentive Plan") and the TCF Financial Incentive Stock Program ("Incentive Stock Program") during the nine months ended September 30, 2016:

	Restricted Stock									Stock Options
	Shares		Price Range					Weighted- Average Grant Date Fair Value		Shares		Price Range					Weighted- Average Remaining Contractual Life in Years	Weighted- Average Exercise Price
Outstanding at December 31, 2015	3,273,086		$	6.16	-	$	16.28	$	13.09	1,379,000		$	12.85	-	$	15.75	2.17	$	14.07
Granted	834,000		9.48		-	13.05		12.05		—		—		-	—		—	—
Exercised	—		—		-	—		—		(800,000	)	12.85		-	12.85		—	12.85
Forfeited/canceled	(205,483	)	6.16		-	15.96		13.54		(118,000	)	15.75		-	15.75		—	15.75
Vested	(401,225	)	9.65		-	15.96		13.10		—		—		-	—		—	—
Outstanding at September 30, 2016	3,500,378		7.73		-	16.28		12.81		461,000		15.75		-	15.75		1.31	15.75
Exercisable at September 30, 2016	N.A.							N.A.		461,000		15.75		-	15.75			15.75

N.A. Not Applicable.

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Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of net periodic benefit cost included in compensation and employee benefits expense for cash balance Pension Plan and Postretirement Plan

The following tables set forth the net periodic benefit plan (income) cost included in compensation and employee benefits expense for the TCF Cash Balance Pension Plan (the "Pension Plan") and health care benefits for eligible retired employees (the "Postretirement Plan") for the three and nine months ended September 30, 2016 and 2015:

	Pension Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	321		$	303		$	961		$	911
Return on plan assets	(147		)	(159		)	(440		)	(479		)
Net periodic benefit plan (income) cost	$	174		$	144		$	521		$	432

	Postretirement Plan
	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2016			2015			2016			2015
Interest cost	$	37		$	39		$	113		$	115
Amortization of prior service cost	(12		)	(12		)	(35		)	(35		)
Net periodic benefit plan (income) cost	$	25		$	27		$	78		$	80

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Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of derivative instruments

The following tables summarize TCF's outstanding derivative instruments as of September 30, 2016 and December 31, 2015. See Note 13, Fair Value Disclosures, for additional information.

	At September 30, 2016
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	8,990	$	(3,703	)	$	5,287
Forward foreign exchange contracts	59,649		447		(182		)	265
Derivatives not designated as hedges:
Forward foreign exchange contracts	194,259		2,196		(1,504		)	692
Interest rate contracts	126,451		3,827		—			3,827
Interest rate lock commitments	52,088		866		—			866
Total derivative assets			$	16,326	$	(5,389	)	$	10,937
Derivative Liabilities:
Derivatives not designated as hedges:
Forward foreign exchange contracts	202,486		835		(791		)	44
Interest rate contracts	126,451		4,002		(4,002		)	—
Other contracts	13,804		387		(387		)	—
Interest rate lock commitments	374		4		—			4
Total derivative liabilities			$	5,228	$	(5,180	)	$	48
	At December 31, 2015
(In thousands)	Notional Amount		Gross Amounts Recognized		Gross Amounts Offset			Net Amount Presented
Derivative Assets:
Derivatives designated as hedges:
Forward foreign exchange contracts	$	47,409	$	858	$	—		$	858
Derivatives not designated as hedges:
Forward foreign exchange contracts	260,678		5,057		(2,081		)	2,976
Interest rate contracts	111,347		2,093		—			2,093
Interest rate lock commitments	50,667		729		—			729
Total derivative assets			$	8,737	$	(2,081	)	$	6,656
Derivative Liabilities:
Derivatives designated as hedges:
Interest rate contracts	$	150,000	$	142	$	(142	)	$	—
Derivatives not designated as hedges:
Forward foreign exchange contracts	187,902		1,192		(1,081		)	111
Interest rate contracts	111,347		2,175		(2,175		)	—
Other contracts	13,804		305		(305		)	—
Interest rate lock commitments	3,218		13		—			13
Total derivative liabilities			$	3,827	$	(3,703	)	$	124

Schedule of pre-tax impact of derivative activity

The following table summarizes the pre-tax impact of derivative activity within the Consolidated Statements of Income and the Consolidated Statements of Comprehensive Income:

		Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	Income Statement Location	2016			2015			2016			2015
Consolidated Statements of Income:
Fair value hedges:
Interest rate contracts	Other non-interest income	$	(1,407	)	$	6,296		$	9,132		$	2,029
Non-derivative hedged items	Other non-interest income	1,333			(5,425		)	(7,868		)	(1,862		)
Not designated as hedges:
Forward foreign exchange contracts	Other non-interest expense	5,979			26,574			(23,459		)	55,866
Interest rate lock commitments	Gains on sales of consumer real estate loans, net	(91		)	189			146			359
Interest rate contracts	Other non-interest income	27			(48		)	(92		)	(28		)
Other contracts	Other non-interest expense	—			—			(319		)	—
Net gain (loss) recognized		$	5,841		$	27,586		$	(22,460	)	$	56,364
Consolidated Statements of Comprehensive Income:
Net investment hedges:
Forward foreign exchange contracts	Other comprehensive income (loss)	$	904		$	2,858		$	(2,691	)	$	5,772
Net unrealized gain (loss)		$	904		$	2,858		$	(2,691	)	$	5,772

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Fair Values Disclosures (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Balances of assets and liabilities measured at fair value on a recurring and non-recurring basis

The following tables present the balances of assets and liabilities measured at fair value on a recurring and non-recurring basis:

	Fair Value Measurements at September 30, 2016
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	805,275	$	—	$	805,275
Other	—		—		22		22
Obligations of states and political subdivisions	—		614,524		—		614,524
Loans and leases held for sale	—		—		6,331		6,331
Interest-only strips	—		—		43,145		43,145
Forward foreign exchange contracts(1)	—		2,643		—		2,643
Interest rate contracts(1)	—		12,817		—		12,817
Interest rate lock commitments(1)	—		—		866		866
Forward loan sales commitments	—		—		3		3
Assets held in trust for deferred compensation plans	22,156		—		—		22,156
Total assets	$	22,156	$	1,435,259	$	50,367	$	1,507,782
Forward foreign exchange contracts(1)	$	—	$	835	$	—	$	835
Interest rate contracts(1)	—		4,002		—		4,002
Interest rate lock commitments(1)	—		—		4		4
Forward loan sales commitments	—		—		199		199
Liabilities held in trust for deferred compensation plans	22,156		—		—		22,156
Other contracts(1)	—		—		387		387
Total liabilities	$	22,156	$	4,837	$	590	$	27,583
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	3,272	$	3,272
Loans	—		—		122,457		122,457
Other real estate owned:
Consumer	—		—		19,906		19,906
Commercial	—		—		3,874		3,874
Repossessed and returned assets	—		2,641		2,218		4,859
Total non-recurring fair value measurements	$	—	$	2,641	$	151,727	$	154,368

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

	Fair Value Measurements at December 31, 2015
(In thousands)	Level 1		Level 2		Level 3		Total
Recurring Fair Value Measurements:
Securities available for sale:
Mortgage-backed securities:
U.S. Government sponsored enterprises and federal agencies	$	—	$	621,930	$	—	$	621,930
Other	—		—		34		34
Obligations of states and political subdivisions	—		266,921		—		266,921
Loans and leases held for sale	—		—		10,568		10,568
Interest-only strips	—		—		44,332		44,332
Forward foreign exchange contracts(1)	—		5,915		—		5,915
Interest rate contracts(1)	—		2,093		—		2,093
Interest rate lock commitments(1)	—		—		729		729
Forward loan sales commitments	—		—		284		284
Assets held in trust for deferred compensation plans	19,731		—		—		19,731
Total assets	$	19,731	$	896,859	$	55,947	$	972,537
Forward foreign exchange contracts(1)	$	—	$	1,192	$	—	$	1,192
Interest rate contracts(1)	—		2,317		—		2,317
Interest rate lock commitments(1)	—		—		13		13
Forward loan sales commitments	—		—		19		19
Liabilities held in trust for deferred compensation plans	19,731		—		—		19,731
Other contracts(1)	—		—		305		305
Total liabilities	$	19,731	$	3,509	$	337	$	23,577
Non-recurring Fair Value Measurements:
Securities held to maturity	$	—	$	—	$	1,110	$	1,110
Loans	—		—		130,797		130,797
Other real estate owned:
Consumer	—		—		37,619		37,619
Commercial	—		—		5,249		5,249
Repossessed and returned assets	—		2,673		2,197		4,870
Total non-recurring fair value measurements	$	—	$	2,673	$	176,972	$	179,645

(1) As permitted under GAAP, TCF has elected to net derivative receivables and derivative payables when a legally enforceable master netting agreement exists as well as the related cash collateral received and paid. For purposes of this table, the derivative receivable and derivative payable balances are presented gross of this netting adjustment.

Schedule of reconciliation of the net derivative assets and liabilities measured at fair value on a recurring basis

The following table presents changes in Level 3 assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Three Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	25		$	7,565		$	48,411		$	953		$	(317	)	$	(466	)
Total net gains (losses) included in:
Net income	—			(72		)	(819		)	(91		)	121			—
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(95,901		)	—			—			—			—
Originations	—			94,739			2,513			—			—			—
Principal paydowns / settlements	(3		)	—			(7,744		)	—			—			79
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Three Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	45		$	4,962		$	55,944		$	455		$	(5	)	$	(465	)
Total net gains (losses) included in:
Net income	—			18			1,520			188			(13		)	—
Sales	—			(76,677		)	—			—			—			—
Originations	—			77,502			2,711			—			—			—
Principal paydowns / settlements	(7		)	—			(9,476		)	—			—			79
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)
(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Nine Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	34		$	10,568		$	44,332		$	716		$	265		$	(305	)
Total net gains (losses) included in:
Net income	—			126			1,697			146			(461		)	(318		)
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(257,641		)	—			—			—			—
Originations	—			253,278			19,121			—			—			—
Principal paydowns / settlements	(12		)	—			(22,789		)	—			—			236
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Nine Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	55		$	3,308		$	69,789		$	285		$	(23	)	$	(621	)
Total net gains (losses) included in:
Net income	—			50			5,309			358			5			—
Sales	—			(212,940		)	—			—			—			—
Originations	—			215,387			6,948			—			—			—
Principal paydowns / settlements	(17		)	—			(31,347		)	—			—			235
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)

Schedule of reconciliation of the assets measured at fair value on a recurring basis

The following table presents changes in Level 3 assets and liabilities measured at fair value on a recurring basis:

(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Three Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	25		$	7,565		$	48,411		$	953		$	(317	)	$	(466	)
Total net gains (losses) included in:
Net income	—			(72		)	(819		)	(91		)	121			—
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(95,901		)	—			—			—			—
Originations	—			94,739			2,513			—			—			—
Principal paydowns / settlements	(3		)	—			(7,744		)	—			—			79
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Three Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	45		$	4,962		$	55,944		$	455		$	(5	)	$	(465	)
Total net gains (losses) included in:
Net income	—			18			1,520			188			(13		)	—
Sales	—			(76,677		)	—			—			—			—
Originations	—			77,502			2,711			—			—			—
Principal paydowns / settlements	(7		)	—			(9,476		)	—			—			79
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)
(In thousands)	Securities Available for Sale			Loans and Leases Held for Sale			Interest-only Strips			Interest Rate Lock Commitments			Forward Loan Sales Commitments			Other Contracts
At or For the Nine Months Ended September 30, 2016:
Asset (liability) balance, beginning of period	$	34		$	10,568		$	44,332		$	716		$	265		$	(305	)
Total net gains (losses) included in:
Net income	—			126			1,697			146			(461		)	(318		)
Other comprehensive income (loss)	—			—			784			—			—			—
Sales	—			(257,641		)	—			—			—			—
Originations	—			253,278			19,121			—			—			—
Principal paydowns / settlements	(12		)	—			(22,789		)	—			—			236
Asset (liability) balance, end of period	$	22		$	6,331		$	43,145		$	862		$	(196	)	$	(387	)
At or For the Nine Months Ended September 30, 2015:
Asset (liability) balance, beginning of period	$	55		$	3,308		$	69,789		$	285		$	(23	)	$	(621	)
Total net gains (losses) included in:
Net income	—			50			5,309			358			5			—
Sales	—			(212,940		)	—			—			—			—
Originations	—			215,387			6,948			—			—			—
Principal paydowns / settlements	(17		)	—			(31,347		)	—			—			235
Asset (liability) balance, end of period	$	38		$	5,805		$	50,699		$	643		$	(18	)	$	(386	)

Fair value, option, quantitative disclosures

The following table presents the difference between the aggregate fair value and aggregate unpaid principal balance of these loans held for sale:

(In thousands)	At September 30, 2016		At December 31, 2015
Fair value carrying amount	$	6,331	$	10,568
Aggregate unpaid principal amount	6,202		10,547
Fair value carrying amount less aggregate unpaid principal	$	129	$	21

Fair value of assets and liabilities, including hierarchy level

The following tables present the carrying amounts and estimated fair values of the Company's financial instruments, excluding short-term financial assets and liabilities as their carrying amounts approximate fair value and excluding financial instruments recorded at fair value on a recurring basis. This information represents only a portion of TCF's balance sheet and not the estimated value of the Company as a whole. Non-financial instruments such as the intangible value of TCF's branches and core deposits, leasing operations, goodwill, premises and equipment and the future revenues from TCF's customers are not reflected in this disclosure. Therefore, this information is of limited use in assessing the value of TCF.

	Carrying Amount			Estimated Fair Value at September 30, 2016
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	59,707		$	—	$	59,707		$	—	$	59,707
Securities held to maturity	185,230			—		193,684			3,672		197,356
Loans and leases held for sale	386,673			—		—			400,494		400,494
Loans:
Consumer real estate	4,987,324			—		—			5,120,863		5,120,863
Commercial real estate	2,516,048			—		—			2,477,768		2,477,768
Commercial business	634,151			—		—			611,307		611,307
Equipment finance	1,997,295			—		—			1,987,842		1,987,842
Inventory finance	2,261,086			—		—			2,246,040		2,246,040
Auto finance	2,731,900			—		—			2,741,674		2,741,674
Other	17,886			—		—			13,642		13,642
Allowance for loan losses(1)	(155,841		)	—		—			—		—
Securitization receivable(2)	18,743			—		—			18,743		18,743
Total financial instrument assets	$	15,640,202		$	—	$	253,391		$	15,622,045	$	15,875,436
Financial instrument liabilities:
Deposits	$	17,234,206		$	12,950,914	$	4,308,873		$	—	$	17,259,787
Long-term borrowings	713,996			—		714,964			2,755		717,719
Total financial instrument liabilities	$	17,948,202		$	12,950,914	$	5,023,837		$	2,755	$	17,977,506
Financial instruments with off-balance sheet risk:(3)
Commitments to extend credit	$	21,469		$	—	$	21,469		$	—	$	21,469
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	21,434		$	—	$	21,434		$	—	$	21,434

(1) Expected credit losses are included in the estimated fair values.

(2) Carrying amounts are included in other assets.

(3) Positive amounts represent assets, negative amounts represent liabilities.

	Carrying Amount			Estimated Fair Value at December 31, 2015
(In thousands)				Level 1		Level 2			Level 3		Total
Financial instrument assets:
Investments	$	70,537		$	—	$	70,537		$	—	$	70,537
Securities held to maturity	201,920			—		202,443			4,510		206,953
Loans and leases held for sale	157,625			—		—			165,387		165,387
Loans:
Consumer real estate	5,464,272			—		—			5,543,273		5,543,273
Commercial real estate	2,593,429			—		—			2,556,018		2,556,018
Commercial business	552,403			—		—			531,274		531,274
Equipment finance	1,909,672			—		—			1,888,664		1,888,664
Inventory finance	2,146,754			—		—			2,132,435		2,132,435
Auto finance	2,647,596			—		—			2,650,429		2,650,429
Other	19,297			—		—			14,699		14,699
Allowance for loan losses(1)	(156,054		)	—		—			—		—
Total financial instrument assets	$	15,607,451		$	—	$	272,980		$	15,486,689	$	15,759,669
Financial instrument liabilities:
Deposits	$	16,719,989		$	12,816,196	$	3,927,434		$	—	$	16,743,630
Long-term borrowings	1,034,557			—		1,035,846			5,427		1,041,273
Total financial instrument liabilities	$	17,754,546		$	12,816,196	$	4,963,280		$	5,427	$	17,784,903
Financial instruments with off-balance sheet risk:(2)
Commitments to extend credit	$	23,937		$	—	$	23,937		$	—	$	23,937
Standby letters of credit	(35		)	—		(35		)	—		(35		)
Total financial instruments with off-balance sheet risk	$	23,902		$	—	$	23,902		$	—	$	23,902

(1) Expected credit losses are included in the estimated fair values.

(2) Positive amounts represent assets, negative amounts represent liabilities.

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Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per common share

TCF's restricted stock awards that pay non-forfeitable common stock dividends meet the criteria of a participating security. Accordingly, earnings per share is calculated using the two-class method under which earnings are allocated to both common shares and participating securities.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands, except per-share data)	2016		2015		2016		2015
Basic Earnings Per Common Share:
Net income available to common stockholders	$	51,445	$	47,728	$	147,491	$	130,090
Earnings allocated to participating securities	13		12		38		34
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding for basic earnings per common share	167,366,069		165,990,432		167,155,393		165,479,029
Basic earnings per common share	$	0.31	$	0.29	$	0.88	$	0.79
Diluted Earnings Per Common Share:
Earnings allocated to common stock	$	51,432	$	47,716	$	147,453	$	130,056
Weighted-average common shares outstanding used in basic earnings per common share calculation	167,366,069		165,990,432		167,155,393		165,479,029
Net dilutive effect of:
Non-participating restricted stock	516,083		355,408		478,641		312,402
Stock options	85,467		210,280		73,866		221,908
Weighted-average common shares outstanding for diluted earnings per common share	167,967,619		166,556,120		167,707,900		166,013,339
Diluted earnings per common share	$	0.31	$	0.29	$	0.88	$	0.78

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Other Expense (Tables)

9 Months Ended

Sep. 30, 2016

Other Income and Expenses [Abstract]

Other Expense

Other expense consisted of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2016		2015		2016		2015
Loan and lease processing	$	7,035	$	6,626	$	19,526	$	17,950
Professional fees	3,993		5,034		13,170		15,793
Card processing and issuance cost	3,952		3,914		11,634		12,855
Outside processing	3,728		3,383		10,941		10,413
Travel	2,888		2,704		9,185		8,372
Telecommunications	2,696		2,720		8,477		8,918
Other	25,559		21,369		70,253		65,469
Total other expense	$	49,851	$	45,750	$	143,186	$	139,770

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Business Segments (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Reportable segments, including a reconciliation of consolidated totals

The following tables set forth certain information for each of TCF's reportable segments, including a reconciliation of TCF's consolidated totals:

(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Three Months Ended September 30, 2016:
Net interest income	$	140,887	$	85,721	$	(14,590	)	$	212,018
Provision for credit losses	10,720		3,174		—			13,894
Non-interest income	89,373		30,393		(92		)	119,674
Non-interest expense	165,668		61,382		1,828			228,878
Income tax expense (benefit)	19,367		17,355		(6,465		)	30,257
Income (loss) after income tax expense (benefit)	34,505		34,203		(10,045		)	58,663
Income attributable to non-controlling interest	—		2,371		—			2,371
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	34,505	$	31,832	$	(14,892	)	$	51,445
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	111,107	$	112,834	$	8,785		$	232,726
Non-interest income	89,373		30,393		(92		)	119,674
Total	$	200,480	$	143,227	$	8,693		$	352,400
At or For the Three Months Ended September 30, 2015:
Net interest income	$	136,160	$	83,717	$	(14,607	)	$	205,270
Provision for credit losses	8,284		1,734		—			10,018
Non-interest income	81,518		29,856		878			112,252
Non-interest expense	160,624		59,430		2,230			222,284
Income tax expense (benefit)	18,311		18,526		(6,309		)	30,528
Income (loss) after income tax expense (benefit)	30,459		33,883		(9,650		)	54,692
Income attributable to non-controlling interest	—		2,117		—			2,117
Preferred stock dividends	—		—		4,847			4,847
Net income (loss) available to common stockholders	$	30,459	$	31,766	$	(14,497	)	$	47,728
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	110,420	$	106,629	$	6,555		$	223,604
Non-interest income	81,518		29,856		878			112,252
Total	$	191,938	$	136,485	$	7,433		$	335,856

(In thousands)	Consumer Banking		Wholesale Banking		Enterprise Services			Consolidated
At or For the Nine Months Ended September 30, 2016:
Net interest income	$	420,886	$	257,917	$	(42,143	)	$	636,660
Provision for credit losses	36,278		9,708		—			45,986
Non-interest income	254,130		94,794		1,308			350,232
Non-interest expense	491,632		184,217		8,679			684,528
Income tax expense (benefit)	52,824		52,866		(18,924		)	86,766
Income (loss) after income tax expense (benefit)	94,282		105,920		(30,590		)	169,612
Income attributable to non-controlling interest	—		7,580		—			7,580
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	94,282	$	98,340	$	(45,131	)	$	147,491
Total assets	$	8,759,858	$	9,902,952	$	2,421,346		$	21,084,156
Revenues from external customers:
Interest income	$	336,176	$	338,461	$	24,435		$	699,072
Non-interest income	254,130		94,794		1,308			350,232
Total	$	590,306	$	433,255	$	25,743		$	1,049,304
At or For the Nine Months Ended September 30, 2015:
Net interest income	$	402,127	$	254,247	$	(41,655	)	$	614,719
Provision for credit losses	30,184		5,153		—			35,337
Non-interest income	239,782		84,463		2,094			326,339
Non-interest expense	482,900		180,225		9,035			672,160
Income tax expense (benefit)	47,850		53,947		(19,539		)	82,258
Income (loss) after income tax expense (benefit)	80,975		99,385		(29,057		)	151,303
Income attributable to non-controlling interest	—		6,672		—			6,672
Preferred stock dividends	—		—		14,541			14,541
Net income (loss) available to common stockholders	$	80,975	$	92,713	$	(43,598	)	$	130,090
Total assets	$	8,859,028	$	9,336,974	$	1,927,780		$	20,123,782
Revenues from external customers:
Interest income	$	325,826	$	322,347	$	18,306		$	666,479
Non-interest income	239,782		84,463		2,094			326,339
Total	$	565,608	$	406,810	$	20,400		$	992,818

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Accumulated Other Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2016

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Summary of components of other comprehensive income and the related tax effects

The components of other comprehensive income (loss) and the related tax effects are presented in the table below.

	Three Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	(7,624	)	$	2,896		$	(4,728	)	$	9,972		$	(3,766	)	$	6,206
Reclassification of net (gains) losses to net income	425			(161		)	264			281			(106		)	175
Net unrealized gains (losses)	(7,199		)	2,735			(4,464		)	10,253			(3,872		)	6,381
Net investment hedges:
Unrealized gains (losses) arising during the period	904			(343		)	561			2,858			(1,079		)	1,779
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	(957		)	—			(957		)	(3,049		)	—			(3,049		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(12		)	4			(8		)	(12		)	4			(8		)
Total other comprehensive income (loss)	$	(7,264	)	$	2,396		$	(4,868	)	$	10,050		$	(4,947	)	$	5,103
	Nine Months Ended September 30,
	2016									2015
(In thousands)	Before Tax			Tax Effect			Net of Tax			Before Tax			Tax Effect			Net of Tax
Securities available for sale and interest-only strips:
Unrealized gains (losses) arising during the period	$	32,639		$	(12,396	)	$	20,243		$	2,971		$	(1,122	)	$	1,849
Reclassification of net (gains) losses to net income	1,448			(550		)	898			871			(329		)	542
Net unrealized gains (losses)	34,087			(12,946		)	21,141			3,842			(1,451		)	2,391
Net investment hedges:
Unrealized gains (losses) arising during the period	(2,691		)	1,022			(1,669		)	5,772			(2,180		)	3,592
Foreign currency translation adjustment:(1)
Unrealized gains (losses) arising during the period	2,791			—			2,791			(6,318		)	—			(6,318		)
Recognized postretirement prior service cost:
Reclassification of net (gains) losses to net income	(35		)	13			(22		)	(35		)	13			(22		)
Total other comprehensive income (loss)	$	34,152		$	(11,911	)	$	22,241		$	3,261		$	(3,618	)	$	(357	)

(1)  Foreign investments are deemed to be permanent in nature and therefore TCF does not provide for taxes on foreign currency translation adjustments.

Schedule of accumulated other comprehensive income

Accumulated other comprehensive income (loss) balances are presented in the table below.

(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Three Months Ended September 30, 2016:
Balance, beginning of period	$	15,898		$	5,019		$	(9,316	)	$	162		$	11,763
Other comprehensive income (loss)	(4,728		)	561			(957		)	—			(5,124		)
Amounts reclassified from accumulated other comprehensive income (loss)	264			—			—			(8		)	256
Net other comprehensive income (loss)	(4,464		)	561			(957		)	(8		)	(4,868		)
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Three Months Ended September 30, 2015:
Balance, beginning of period	$	(12,881	)	$	4,349		$	(8,029	)	$	191		$	(16,370	)
Other comprehensive income (loss)	6,206			1,779			(3,049		)	—			4,936
Amounts reclassified from accumulated other comprehensive income (loss)	175			—			—			(8		)	167
Net other comprehensive income (loss)	6,381			1,779			(3,049		)	(8		)	5,103
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)
(In thousands)	Securities Available for Sale and Interest-only Strips			Net Investment Hedges			Foreign Currency Translation Adjustment			Recognized Postretirement Prior Service Cost			Total
At or For the Nine Months Ended September 30, 2016:
Balance, beginning of period	$	(9,707	)	$	7,249		$	(13,064	)	$	176		$	(15,346	)
Other comprehensive income (loss)	20,243			(1,669		)	2,791			—			21,365
Amounts reclassified from accumulated other comprehensive income (loss)	898			—			—			(22		)	876
Net other comprehensive income (loss)	21,141			(1,669		)	2,791			(22		)	22,241
Balance, end of period	$	11,434		$	5,580		$	(10,273	)	$	154		$	6,895
At or For the Nine Months Ended September 30, 2015:
Balance, beginning of period	$	(8,891	)	$	2,536		$	(4,760	)	$	205		$	(10,910	)
Other comprehensive income (loss)	1,849			3,592			(6,318		)	—			(877		)
Amounts reclassified from accumulated other comprehensive income (loss)	542			—			—			(22		)	520
Net other comprehensive income (loss)	2,391			3,592			(6,318		)	(22		)	(357		)
Balance, end of period	$	(6,500	)	$	6,128		$	(11,078	)	$	183		$	(11,267	)

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Cash and Due from Banks (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
Reserve in cash on hand or at the Federal Reserve as required by Federal Reserve regulations	$ 103.8	$ 101.6
Total restricted cash balance	51.2	58.3
Cash held in interest-bearing accounts	$ 398.0	$ 609.5

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Basis of Presentation (Details) - Accounting Standards Update 2015-03 $ in Millions	Dec. 31, 2015 USD ($)
Long-term borrowings
New Accounting Pronouncements or Change in Accounting Principle
Reclassification of unamortized debt issuance costs	$ (2.1)
Other assets
New Accounting Pronouncements or Change in Accounting Principle
Reclassification of unamortized debt issuance costs	$ 2.1

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Securities Available for Sale and Securities Held to Maturity (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Securities available for sale:
Amortized Cost	$ 1,388,824,000		$ 1,388,824,000		$ 889,744,000
Gross Unrealized Gains	31,693,000		31,693,000		5,387,000
Gross Unrealized Losses	696,000		696,000		6,246,000
Fair Value	1,419,821,000		1,419,821,000		888,885,000
Gross realized gains recognized on sales of securities available for sale	0		0
Securities available for sale sold during period		$ 200,000		$ 200,000
Proceeds from sales of securities available for sale		200,000	0	177,000
Impairment charges	0	0	0	0
Securities held to maturity:
Amortized Cost	185,230,000		185,230,000		201,920,000
Gross Unrealized Gains	12,158,000		12,158,000		5,247,000
Gross Unrealized Losses	32,000		32,000		214,000
Fair Value	197,356,000		197,356,000		206,953,000
Impairment charge on held to maturity securities	600,000	$ 200,000	700,000	$ 300,000
Available-for-sale Securities Transferred to Held-to-maturity Securities Value						$ 191,700,000
Mortgage-backed securities:
Securities available for sale:
Securities available for sale pledged as collateral	8,500,000		8,500,000		17,100,000
U.S. Government sponsored enterprises and federal agencies
Securities available for sale:
Amortized Cost	791,208,000		791,208,000		627,521,000
Gross Unrealized Gains	14,120,000		14,120,000		655,000
Gross Unrealized Losses	53,000		53,000		6,246,000
Fair Value	805,275,000		805,275,000		621,930,000
Securities held to maturity:
Amortized Cost	181,558,000		181,558,000		197,410,000
Gross Unrealized Gains	12,158,000		12,158,000		5,247,000
Gross Unrealized Losses	32,000		32,000		214,000
Fair Value	193,684,000		193,684,000		202,443,000
Mortgage-backed securities, Other
Securities available for sale:
Amortized Cost	22,000		22,000		34,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	0		0		0
Fair Value	22,000		22,000		34,000
Securities held to maturity:
Amortized Cost	872,000		872,000		1,110,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	0		0		0
Fair Value	872,000		872,000		1,110,000
Obligations of states and political subdivisions
Securities available for sale:
Amortized Cost	597,594,000		597,594,000		262,189,000
Gross Unrealized Gains	17,573,000		17,573,000		4,732,000
Gross Unrealized Losses	643,000		643,000		0
Fair Value	614,524,000		614,524,000		266,921,000
Other securities
Securities held to maturity:
Amortized Cost	2,800,000		2,800,000		3,400,000
Gross Unrealized Gains	0		0		0
Gross Unrealized Losses	0		0		0
Fair Value	$ 2,800,000		$ 2,800,000		$ 3,400,000

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Securities Available for Sale and Securities Held to Maturity (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Gross unrealized losses and fair value of securities available for sale that is in a loss position
Less than 12 months, Fair Value	$ 107,344	$ 552,127
Less than 12 months, Unrealized Losses	696	6,246
12 months or more, Fair Value	0	0
12 months or more, Unrealized Losses	0	0
Total, fair value	107,344	552,127
Total, Unrealized Losses	696	6,246
Gross unrealized losses and fair value of securities held to maturity that is in a loss position
Less than 12 months, Fair Value	1,964	12,333
Less than 12 months, Unrealized Losses	32	100
12 months or more, Fair Value	0	1,732
12 months or more, Unrealized Losses	0	114
Total, fair value	1,964	14,065
Total, Unrealized Losses	32	214
U.S. Government sponsored enterprises and federal agencies
Gross unrealized losses and fair value of securities available for sale that is in a loss position
Less than 12 months, Fair Value	32,870	552,127
Less than 12 months, Unrealized Losses	53	6,246
12 months or more, Fair Value	0	0
12 months or more, Unrealized Losses	0	0
Total, fair value	32,870	552,127
Total, Unrealized Losses	53	6,246
Gross unrealized losses and fair value of securities held to maturity that is in a loss position
Less than 12 months, Fair Value	1,964	12,333
Less than 12 months, Unrealized Losses	32	100
12 months or more, Fair Value	0	1,732
12 months or more, Unrealized Losses	0	114
Total, fair value	1,964	14,065
Total, Unrealized Losses	32	$ 214
Obligations of states and political subdivisions
Gross unrealized losses and fair value of securities available for sale that is in a loss position
Less than 12 months, Fair Value	74,474
Less than 12 months, Unrealized Losses	643
12 months or more, Fair Value	0
12 months or more, Unrealized Losses	0
Total, fair value	74,474
Total, Unrealized Losses	$ 643

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Securities Available for Sale and Securities Held to Maturity (Details 3) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Amortized cost, securities available for sale
Due in one year or less	$ 1	$ 1
Due in 1-5 years	22	38
Due in 5-10 years	307,812	268,638
Due after 10 years	1,080,989	621,067
Amortized Cost	1,388,824	889,744
Fair value, securities available for sale
Due in one year or less	1	1
Due in 1-5 years	22	38
Due in 5-10 years	320,329	272,511
Due after 10 years	1,099,469	616,335
Fair Value	1,419,821	888,885
Amortized cost, securities held to maturity
Due in one year or less	0	100
Due in 1-5 years	1,200	1,900
Due in 5-10 years	1,600	1,400
Due after 10 years	182,430	198,520
Amortized Cost	185,230	201,920
Fair value, securities held to maturity
Due in one year or less	0	100
Due in 1-5 years	1,200	1,900
Due in 5-10 years	1,600	1,400
Due after 10	194,556	203,553
Fair Value	$ 197,356	$ 206,953

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Loans and Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 17,384,619	$ 17,435,999
Loans and leases, Percent Change	(0.30%)
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 62,500	73,700
Consumer real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 4,987,324	5,464,272
Loans and leases, Percent Change	(8.70%)
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 3,150,199	3,145,832
Loans and leases, Percent Change	0.10%
Commercial | Commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,516,048	2,593,429
Loans and leases, Percent Change	(3.00%)
Commercial | Permanent
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,214,685	2,267,218
Loans and leases, Percent Change	(2.30%)
Commercial | Construction and development
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 301,363	326,211
Loans and leases, Percent Change	(7.60%)
Commercial | Commercial business
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 634,151	552,403
Loans and leases, Percent Change	14.80%
Leasing and equipment finance
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 4,236,224	4,012,248
Loans and leases, Percent Change	5.60%
Inventory finance
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,261,086	2,146,754
Loans and leases, Percent Change	5.30%
Auto finance
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,731,900	2,647,596
Loans and leases, Percent Change	3.20%
Other
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 17,886	19,297
Loans and leases, Percent Change	(7.30%)
First mortgage lien | Consumer real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,313,044	2,624,956
Loans and leases, Percent Change	(11.90%)
Junior lien | Consumer real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and leases	$ 2,674,280	$ 2,839,316
Loans and leases, Percent Change	(5.80%)

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Loans and Leases (Details 2) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
HELOCs
HELOCs included in consumer real estate junior lien portfolio	$ 2,400.0	$ 2,500.0
Amortizing junior lien mortgage loans included in consumer real estate junior lien portfolio	292.2	345.3
Portion of HELOCs in initial interest-only draw period	$ 1,800.0	1,800.0
Initial Interest-only Draw Period	10 years
Loans and Leases Receivable Consumer Home Equity Amortization Repayment Period	20 years
HELOCs with interest-only revolving draw programs	$ 561.4	$ 664.5
Loans and Leases Receivable Percentage of Consumer Home Equity Line of Credit with Interest only Revolving Draw Programs Maturing Prior to Specified Period	18.20%
Minimum
HELOCs
Draw period for the HELOCs	5 years
Maximum
HELOCs
Draw period for the HELOCs	40 years

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Loans and Leases (Details 3) - Consumer Borrower - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Consumer Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sales proceeds, net	$ 450,666	$ 250,994	$ 1,129,251	$ 898,387
Recorded investment in loans sold, including accrued interest	(438,900)	(246,793)	(1,107,327)	(878,468)
Securitization receivable	0	0	0	0
Interest-only strips, initial value	2,513	2,711	13,426	6,948
Net gains excluding subsequent adjustments and valuation adjustments while held for sale	14,279	6,912	35,350	26,867
Auto Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sales proceeds, net	631,511	452,249	1,614,213	1,113,036
Recorded investment in loans sold, including accrued interest	(619,324)	(441,477)	(1,603,413)	(1,084,348)
Securitization receivable	0	0	18,620	0
Interest-only strips, initial value	0	0	5,695	0
Net gains excluding subsequent adjustments and valuation adjustments while held for sale	12,187	10,772	35,115	28,688
Transfer of Consumer Auto Loans	519,300	441,500	933,600	880,800
Proceeds from transfer of consumer auto loans to trusts in securitization transactions	525,700	452,200	926,000	902,800
Net gain recognized on transfer of consumer auto loans to trusts in securitization transactions	6,400	10,800	11,000	22,000
Correspondent Lending | Consumer Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in loans sold, including accrued interest	(95,900)	(76,700)	(257,500)	(212,900)
Net gains excluding subsequent adjustments and valuation adjustments while held for sale	$ 2,100	$ 1,700	$ 5,700	$ 4,700

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Loans and Leases (Details 4) - Consumer Borrower - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Consumer Real Estate Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest-only strips	$ 27,238		$ 27,238		$ 19,182
Contractual liabilities related to sale of loans	772		772		702
Impairment related to consumer real estate interest-only strips	200	$ 0	800	$ 0
Auto Finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest-only strips	15,907		15,907		25,150
Contractual liabilities related to sale of loans	173		173		$ 185
Impairment related to auto finance interest-only strips	$ 2,300	$ 400	$ 2,300	$ 900

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Allowance for Loan and Lease Losses and Credit Quality Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Allowance for loan and lease losses
Balance, beginning of period	$ 158,572	$ 156,115	$ 156,054	$ 164,169
Charge-offs	(16,244)	(15,338)	(47,634)	(56,446)
Recoveries	4,779	5,397	14,132	17,490
Net (charge-offs) recoveries	(11,465)	(9,941)	(33,502)	(38,956)
Provision for credit losses	13,894	10,018	45,986	35,337
Other	(5,160)	(2,230)	(12,697)	(6,588)
Balance, end of period	155,841	153,962	155,841	153,962
Consumer Real Estate
Allowance for loan and lease losses
Balance, beginning of period	64,765	74,687	67,992	85,361
Charge-offs	(4,058)	(6,310)	(14,550)	(27,074)
Recoveries	1,838	1,832	5,094	5,626
Net (charge-offs) recoveries	(2,220)	(4,478)	(9,456)	(21,448)
Provision for credit losses	1,402	780	8,963	8,660
Other	(1,855)	(660)	(5,407)	(2,244)
Balance, end of period	62,092	70,329	62,092	70,329
Commercial
Allowance for loan and lease losses
Balance, beginning of period	31,161	30,205	30,185	31,367
Charge-offs	(4)	(487)	(668)	(3,944)
Recoveries	80	514	330	2,878
Net (charge-offs) recoveries	76	27	(338)	(1,066)
Provision for credit losses	411	(226)	1,801	(295)
Other	0	0	0	0
Balance, end of period	31,648	30,006	31,648	30,006
Leasing and Equipment Finance
Allowance for loan and lease losses
Balance, beginning of period	20,124	17,669	19,018	18,446
Charge-offs	(2,513)	(1,583)	(6,125)	(5,447)
Recoveries	671	702	1,834	2,205
Net (charge-offs) recoveries	(1,842)	(881)	(4,291)	(3,242)
Provision for credit losses	2,367	1,389	5,922	2,973
Other	0	0	0	0
Balance, end of period	20,649	18,177	20,649	18,177
Inventory Finance
Allowance for loan and lease losses
Balance, beginning of period	12,084	10,879	11,128	10,020
Charge-offs	(697)	(463)	(2,084)	(1,812)
Recoveries	129	319	696	626
Net (charge-offs) recoveries	(568)	(144)	(1,388)	(1,186)
Provision for credit losses	335	546	1,925	2,627
Other	(44)	(160)	142	(340)
Balance, end of period	11,807	11,121	11,807	11,121
Auto Finance
Allowance for loan and lease losses
Balance, beginning of period	29,772	22,061	26,486	18,230
Charge-offs	(6,756)	(4,594)	(18,683)	(12,943)
Recoveries	999	915	2,743	2,253
Net (charge-offs) recoveries	(5,757)	(3,679)	(15,940)	(10,690)
Provision for credit losses	8,361	6,750	26,001	20,186
Other	(3,261)	(1,410)	(7,432)	(4,004)
Balance, end of period	29,115	23,722	29,115	23,722
Other
Allowance for loan and lease losses
Balance, beginning of period	666	614	1,245	745
Charge-offs	(2,216)	(1,901)	(5,524)	(5,226)
Recoveries	1,062	1,115	3,435	3,902
Net (charge-offs) recoveries	(1,154)	(786)	(2,089)	(1,324)
Provision for credit losses	1,018	779	1,374	1,186
Other	0	0	0	0
Balance, end of period	$ 530	$ 607	$ 530	$ 607

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Allowance for Loan and Lease Losses and Credit Quality Information (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Allowance for loan and lease losses:
Collectively evaluated for impairment	$ 126,831		$ 121,626
Individually evaluated for impairment	29,010		34,428
Total	155,841	$ 158,572	156,054	$ 153,962	$ 156,115	$ 164,169
Loans and leases outstanding:
Collectively evaluated for impairment	17,100,471		17,140,931
Individually evaluated for impairment	284,127		295,014
Total loans and leases	17,384,619		17,435,999
Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	21		54
Consumer Real Estate
Allowance for loan and lease losses:
Collectively evaluated for impairment	37,035		38,819
Individually evaluated for impairment	25,057		29,173
Total	62,092	64,765	67,992	70,329	74,687	85,361
Loans and leases outstanding:
Collectively evaluated for impairment	4,779,921		5,248,829
Individually evaluated for impairment	207,403		215,443
Total loans and leases	4,987,324		5,464,272
Consumer Real Estate | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	0		0
Commercial
Allowance for loan and lease losses:
Collectively evaluated for impairment	31,516		30,170
Individually evaluated for impairment	132		15
Total	31,648	31,161	30,185	30,006	30,205	31,367
Loans and leases outstanding:
Collectively evaluated for impairment	3,101,536		3,092,398
Individually evaluated for impairment	48,663		53,434
Total loans and leases	3,150,199		3,145,832
Commercial | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	0		0
Leasing and Equipment Finance
Allowance for loan and lease losses:
Collectively evaluated for impairment	18,447		16,994
Individually evaluated for impairment	2,202		2,024
Total	20,649	20,124	19,018	18,177	17,669	18,446
Loans and leases outstanding:
Collectively evaluated for impairment	4,219,280		3,997,544
Individually evaluated for impairment	16,924		14,669
Total loans and leases	4,236,224		4,012,248
Leasing and Equipment Finance | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	20		35
Inventory Finance
Allowance for loan and lease losses:
Collectively evaluated for impairment	11,582		10,929
Individually evaluated for impairment	225		199
Total	11,807	12,084	11,128	11,121	10,879	10,020
Loans and leases outstanding:
Collectively evaluated for impairment	2,259,513		2,145,605
Individually evaluated for impairment	1,573		1,149
Total loans and leases	2,261,086		2,146,754
Inventory Finance | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	0		0
Auto Finance
Allowance for loan and lease losses:
Collectively evaluated for impairment	27,723		23,471
Individually evaluated for impairment	1,392		3,015
Total	29,115	29,772	26,486	23,722	22,061	18,230
Loans and leases outstanding:
Collectively evaluated for impairment	2,722,343		2,637,269
Individually evaluated for impairment	9,556		10,308
Total loans and leases	2,731,900		2,647,596
Auto Finance | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	1		19
Other
Allowance for loan and lease losses:
Collectively evaluated for impairment	528		1,243
Individually evaluated for impairment	2		2
Total	530	$ 666	1,245	$ 607	$ 614	$ 745
Loans and leases outstanding:
Collectively evaluated for impairment	17,878		19,286
Individually evaluated for impairment	8		11
Total loans and leases	17,886		19,297
Other | Receivables Acquired with Deteriorated Credit Quality
Loans and leases outstanding:
Loans acquired with deteriorated credit quality	$ 0		$ 0

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Allowance for Loan and Lease Losses and Credit Quality Information (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	$ 17,194,572		$ 17,194,572		$ 17,235,533
Non-accrual	190,047		190,047		200,466
Total loans and leases	17,384,619		17,384,619		17,435,999
Interest income recognized on loans and leases in non-accrual status and contractual interest that would have been recorded had the loans and leases performed in accordance with their original contractual terms
Contractual interest due on non-accrual loans and leases	5,127	$ 5,428	15,604	$ 15,992
Interest income recognized on non-accrual loans and leases	1,048	1,021	3,097	3,319
Unrecognized interest income	4,079	$ 4,407	12,507	$ 12,673
Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	17,174,010		17,174,010		17,216,444
60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	16,057		16,057		14,303
90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	4,505		4,505		4,786
Financing receivables
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	17,194,438		17,194,438		17,235,290
Non-accrual	190,047		190,047		200,466
Total loans and leases	17,384,485		17,384,485		17,435,756
Financing receivables | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	17,173,880		17,173,880		17,216,202
Financing receivables | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	16,053		16,053		14,302
Financing receivables | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	4,505		4,505		4,786
Consumer Real Estate
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	4,827,906		4,827,906		5,296,003
Non-accrual	159,418		159,418		168,269
Total loans and leases	4,987,324		4,987,324		5,464,272
Consumer Real Estate | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	4,819,325		4,819,325		5,282,919
Consumer Real Estate | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	7,242		7,242		10,130
Consumer Real Estate | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	1,339		1,339		2,954
First mortgage lien
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,199,805		2,199,805		2,500,800
Non-accrual	113,239		113,239		124,156
Total loans and leases	2,313,044		2,313,044		2,624,956
First mortgage lien | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,191,920		2,191,920		2,489,235
First mortgage lien | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	6,546		6,546		8,649
First mortgage lien | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	1,339		1,339		2,916
Junior lien
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,628,101		2,628,101		2,795,203
Non-accrual	46,179		46,179		44,113
Total loans and leases	2,674,280		2,674,280		2,839,316
Junior lien | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,627,405		2,627,405		2,793,684
Junior lien | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	696		696		1,481
Junior lien | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	0		0		38
Consumer real estate loans to customers in bankruptcy
Accruing and Non-accrual Loans and Leases
Non-accrual	23,493		23,493		20,264
Total loans and leases	38,766		38,766		46,284
Consumer real estate loans to customers in bankruptcy | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	15,273		15,273		26,020
Total commercial
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	3,141,017		3,141,017		3,135,507
Non-accrual	9,182		9,182		10,325
Total loans and leases	3,150,199		3,150,199		3,145,832
Total commercial | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	3,140,759		3,140,759		3,135,506
Total commercial | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	258		258		1
Total commercial | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	0		0		0
Commercial real estate
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,510,455		2,510,455		2,586,692
Non-accrual	5,593		5,593		6,737
Total loans and leases	2,516,048		2,516,048		2,593,429
Commercial real estate | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,510,197		2,510,197		2,586,692
Commercial real estate | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	258		258		0
Commercial real estate | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	0		0		0
Commercial business
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	630,562		630,562		548,815
Non-accrual	3,589		3,589		3,588
Total loans and leases	634,151		634,151		552,403
Commercial business | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	630,562		630,562		548,814
Commercial business | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	0		0		1
Commercial business | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	0		0		0
Leasing and equipment finance
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	4,223,802		4,223,802		4,000,761
Non-accrual	12,288		12,288		11,262
Total loans and leases	4,236,090		4,236,090		4,012,023
Leasing and equipment finance | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	4,217,716		4,217,716		3,998,469
Leasing and equipment finance | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	4,902		4,902		1,728
Leasing and equipment finance | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	1,184		1,184		564
Inventory Finance
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,259,513		2,259,513		2,145,656
Non-accrual	1,573		1,573		1,098
Total loans and leases	2,261,086		2,261,086		2,146,754
Inventory Finance | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,259,303		2,259,303		2,145,538
Inventory Finance | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	175		175		87
Inventory Finance | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	35		35		31
Auto finance
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,724,319		2,724,319		2,638,069
Non-accrual	7,581		7,581		9,509
Total loans and leases	2,731,900		2,731,900		2,647,578
Auto finance | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	2,718,904		2,718,904		2,634,496
Auto finance | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	3,471		3,471		2,343
Auto finance | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	1,944		1,944		1,230
Other
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	17,881		17,881		19,294
Non-accrual	5		5		3
Total loans and leases	17,886		17,886		19,297
Other | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	17,873		17,873		19,274
Other | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	5		5		13
Other | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	3		3		7
Portfolios acquired with deteriorated credit quality
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	134		134		243
Non-accrual	0		0		0
Total loans and leases	134		134		243
Portfolios acquired with deteriorated credit quality | Current-59 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Current and Delinquent and Accruing	130		130		242
Portfolios acquired with deteriorated credit quality | 60-89 Days Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	4		4		1
Portfolios acquired with deteriorated credit quality | 90 Days or More Delinquent and Accruing
Accruing and Non-accrual Loans and Leases
Delinquent and Accruing	$ 0		$ 0		$ 0

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Allowance for Loan and Lease Losses and Credit Quality Information (Details 4) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Loan Modifications for Borrowers with Financial Difficulties
TDR loans	$ 218.0		$ 218.0		$ 230.6
Accruing TDR Loans	129.7		129.7		135.3
Unfunded commitments to consumer real estate and commercial loans classified as TDRs	0.4		0.4		0.4
Commercial Borrower
Loan Modifications for Borrowers with Financial Difficulties
TDR loans	26.9		26.9		31.7
Accruing TDR Loans	21.5		21.5		24.7
Loans Removed from Troubled Debt Restructurings Status			0.1	$ 9.0
Allowance on accruing TDR loans (less than $0.1 million for commercial at both September 30, 2016 and December 31, 2015)	$ 0.1		$ 0.1		$ 0.1
Allowance on accruing TDR loans (as a percent)	0.10%		0.10%		0.10%
Delinquency period of performing loans and leases			60 days		60 days
Consumer Real Estate Loan | Consumer Borrower
Loan Modifications for Borrowers with Financial Difficulties
TDR loans	$ 177.7		$ 177.7		$ 185.8
Accruing TDR Loans	$ 101.9		$ 101.9		106.8
Average yield on TDR loans (as a percent)	4.30%	4.10%	4.20%	4.00%
Contractual average rate of TDR loans (as a percent)	6.70%	6.80%	6.70%	6.70%
Allowance on accruing TDR loans (less than $0.1 million for commercial at both September 30, 2016 and December 31, 2015)	$ 20.2		$ 20.2		$ 22.4
Allowance on accruing TDR loans (as a percent)	19.80%		19.80%		21.00%
Assumed remaining re-default rate used in determining impairment, low end of range (as a percent)	9.00%		9.00%		10.00%
Assumed remaining re-default rate used in determining impairment, high end of range (as a percent)	33.00%		33.00%		33.00%
Percent of accruing TDR loans more than 60 days delinquent	1.10%		1.10%		2.00%
Delinquency period of performing loans and leases			60 days		60 days
Minimum period to be considered for related third-party first mortgage liens to be past due before Junior lien loans are placed on non-accrual status			90 days		90 days
Portion of non-accrual TDR balance, loans discharged in Chapter 7 bankruptcy that are not reaffirmed	$ 51.2		$ 51.2		$ 51.5
Portion of non-accrual TDR balance, loans discharged in Chapter 7 bankruptcy that are not reaffirmed (as a percent)	67.60%		67.60%		65.10%
Portion of non-accrual TDR balance, loans discharged in Chapter 7 bankruptcy that are not reaffirmed, current (as a percent)	76.30%		76.30%		77.20%
Consumer Real Estate Loan | Consumer Borrower | First mortgage lien
Loan Modifications for Borrowers with Financial Difficulties
Unrecognized Interest Income	$ 0.5	$ 0.5	$ 1.5	$ 1.6
Consumer Real Estate Loan | Consumer Borrower | Junior lien
Loan Modifications for Borrowers with Financial Difficulties
Unrecognized Interest Income	$ 0.2	$ 0.2	$ 0.5	$ 0.6

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Allowance for Loan and Lease Losses and Credit Quality Information (Details 5) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Loan Modifications for Borrowers with Financial Difficulties
Minimum period for loans to be delinquent to be considered in default			90 days	90 days
Loan Balance	$ 2,663	$ 688	$ 8,544	$ 2,931
Consumer Real Estate Loan | Consumer Borrower
Loan Modifications for Borrowers with Financial Difficulties
Loan Balance	2,329	406	7,311	2,255
Consumer Real Estate Loan | Consumer Borrower | First mortgage lien
Loan Modifications for Borrowers with Financial Difficulties
Loan Balance	2,150	158	6,635	1,456
Consumer Real Estate Loan | Consumer Borrower | Junior lien
Loan Modifications for Borrowers with Financial Difficulties
Loan Balance	179	248	676	799
Auto Finance
Loan Modifications for Borrowers with Financial Difficulties
Loan Balance	$ 334	$ 282	$ 1,233	$ 676

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Allowance for Loan and Lease Losses and Credit Quality Information (Details 6) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Impaired Loans
Unpaid Contractual Balance	$ 298,756		$ 298,756		$ 309,353
Loan Balance	228,690		228,690		238,556
Related Allowance Recorded	27,173		27,173		31,697
Average Loan Balance	230,973	$ 265,877	233,623	$ 290,238
Interest Income Recognized	2,260	3,702	6,507	11,364
Impaired loans with an allowance recorded
Impaired Loans
Unpaid Contractual Balance	224,276		224,276		232,607
Loan Balance	192,528		192,528		198,613
Related Allowance Recorded	27,173		27,173		31,697
Average Loan Balance	200,058	219,204	195,570	220,174
Interest Income Recognized	1,765	2,627	5,119	7,286
Impaired loans with an allowance recorded | Consumer real estate
Impaired Loans
Unpaid Contractual Balance	193,592		193,592		215,871
Loan Balance	162,184		162,184		182,094
Related Allowance Recorded	24,131		24,131		27,717
Average Loan Balance	169,617	186,724	172,139	170,752
Interest Income Recognized	1,619	2,419	4,755	6,417
Impaired loans with an allowance recorded | First mortgage lien
Impaired Loans
Unpaid Contractual Balance	128,615		128,615		145,749
Loan Balance	108,903		108,903		123,728
Related Allowance Recorded	17,899		17,899		20,880
Average Loan Balance	114,966	126,426	116,315	113,365
Interest Income Recognized	944	1,513	2,762	3,971
Impaired loans with an allowance recorded | Junior lien
Impaired Loans
Unpaid Contractual Balance	64,977		64,977		70,122
Loan Balance	53,281		53,281		58,366
Related Allowance Recorded	6,232		6,232		6,837
Average Loan Balance	54,651	60,298	55,824	57,387
Interest Income Recognized	675	906	1,993	2,446
Impaired loans with an allowance recorded | Total commercial
Impaired Loans
Unpaid Contractual Balance	12,776		12,776		314
Loan Balance	12,776		12,776		314
Related Allowance Recorded	132		132		15
Average Loan Balance	12,941	19,201	6,545	36,160
Interest Income Recognized	100	174	230	777
Impaired loans with an allowance recorded | Commercial real estate
Impaired Loans
Unpaid Contractual Balance	12,762		12,762		298
Loan Balance	12,762		12,762		298
Related Allowance Recorded	129		129		12
Average Loan Balance	12,926	19,183	6,530	36,143
Interest Income Recognized	100	174	230	777
Impaired loans with an allowance recorded | Commercial business
Impaired Loans
Unpaid Contractual Balance	14		14		16
Loan Balance	14		14		16
Related Allowance Recorded	3		3		3
Average Loan Balance	15	18	15	17
Interest Income Recognized	0	0	0	0
Impaired loans with an allowance recorded | Leasing and Equipment Finance
Impaired Loans
Unpaid Contractual Balance	10,670		10,670		7,259
Loan Balance	10,670		10,670		7,259
Related Allowance Recorded	1,356		1,356		822
Average Loan Balance	10,844	6,084	8,963	7,123
Interest Income Recognized	3	8	21	16
Impaired loans with an allowance recorded | Inventory Finance
Impaired Loans
Unpaid Contractual Balance	1,179		1,179		867
Loan Balance	1,185		1,185		873
Related Allowance Recorded	225		225		199
Average Loan Balance	777	1,869	1,030	1,529
Interest Income Recognized	10	17	41	66
Impaired loans with an allowance recorded | Auto Finance
Impaired Loans
Unpaid Contractual Balance	6,052		6,052		8,275
Loan Balance	5,705		5,705		8,062
Related Allowance Recorded	1,327		1,327		2,942
Average Loan Balance	5,871	5,309	6,883	4,557
Interest Income Recognized	33	8	72	8
Impaired loans with an allowance recorded | Other
Impaired Loans
Unpaid Contractual Balance	7		7		21
Loan Balance	8		8		11
Related Allowance Recorded	2		2		2
Average Loan Balance	8	17	10	53
Interest Income Recognized	0	1	0	2
Impaired loans without an allowance recorded
Impaired Loans
Unpaid Contractual Balance	74,480		74,480		76,746
Loan Balance	36,162		36,162		39,943
Average Loan Balance	30,915	46,673	38,053	70,064
Interest Income Recognized	495	1,075	1,388	4,078
Impaired loans without an allowance recorded | Consumer real estate
Impaired Loans
Unpaid Contractual Balance	46,222		46,222		33,131
Loan Balance	15,548		15,548		3,748
Average Loan Balance	9,371	5,919	9,648	24,397
Interest Income Recognized	290	546	713	2,322
Impaired loans without an allowance recorded | First mortgage lien
Impaired Loans
Unpaid Contractual Balance	18,853		18,853		7,100
Loan Balance	13,331		13,331		3,228
Average Loan Balance	8,023	5,633	8,280	20,422
Interest Income Recognized	120	138	228	919
Impaired loans without an allowance recorded | Junior lien
Impaired Loans
Unpaid Contractual Balance	27,369		27,369		26,031
Loan Balance	2,217		2,217		520
Average Loan Balance	1,348	286	1,368	3,975
Interest Income Recognized	170	408	485	1,403
Impaired loans without an allowance recorded | Total commercial
Impaired Loans
Unpaid Contractual Balance	24,080		24,080		41,336
Loan Balance	17,890		17,890		34,742
Average Loan Balance	18,970	39,123	26,316	44,065
Interest Income Recognized	170	507	606	1,679
Impaired loans without an allowance recorded | Commercial real estate
Impaired Loans
Unpaid Contractual Balance	20,039		20,039		37,598
Loan Balance	14,301		14,301		31,157
Average Loan Balance	15,101	37,109	22,729	41,988
Interest Income Recognized	170	507	606	1,674
Impaired loans without an allowance recorded | Commercial business
Impaired Loans
Unpaid Contractual Balance	4,041		4,041		3,738
Loan Balance	3,589		3,589		3,585
Average Loan Balance	3,869	2,014	3,587	2,077
Interest Income Recognized	0	0	0	5
Impaired loans without an allowance recorded | Inventory Finance
Impaired Loans
Unpaid Contractual Balance	385		385		274
Loan Balance	388		388		276
Average Loan Balance	333	497	332	693
Interest Income Recognized	35	22	69	77
Impaired loans without an allowance recorded | Auto Finance
Impaired Loans
Unpaid Contractual Balance	3,708		3,708		2,003
Loan Balance	2,336		2,336		1,177
Average Loan Balance	2,241	1,134	1,757	909
Interest Income Recognized	0	$ 0	0	$ 0
Impaired loans without an allowance recorded | Other
Impaired Loans
Unpaid Contractual Balance	85		85		2
Loan Balance	$ 0		$ 0		$ 0

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Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Weighted-Average Rate
Interest bearing	0.01%	0.02%
Total checking	0.01%	0.01%
Savings	0.03%	0.06%
Money market	0.62%	0.63%
Certificates of deposit	1.06%	0.91%
Total deposits	0.36%	0.30%
Deposits
Non-interest bearing	$ 3,350,978	$ 3,187,581
Interest bearing	2,479,079	2,502,978
Total checking	5,830,057	5,690,559
Savings	4,670,281	4,717,457
Money market	2,450,576	2,408,180
Certificates of deposit	4,283,292	3,903,793
Total deposits	$ 17,234,206	$ 16,719,989
% of Total
Non-interest bearing	19.40%	19.10%
Interest bearing	14.40%	14.90%
Total checking	33.80%	34.00%
Savings	27.10%	28.20%
Money market	14.20%	14.50%
Certificates of deposit	24.90%	23.30%
Total deposits	100.00%	100.00%
Denominations $100 Thousand or Greater
Three months or less	$ 355,778
Over three through six months	382,681
Over six through 12 months	756,120
Over 12 months	660,307
Total	2,154,886
Denominations Less Than $100 Thousand
Three months or less	341,958
Over three through six months	383,483
Over six through 12 months	756,972
Over 12 months	645,993
Total	2,128,406
Total
Three months or less	697,736
Over three through six months	766,164
Over six through 12 months	1,513,092
Over 12 months	1,306,300
Total	4,283,292	$ 3,903,793
Time Deposits, at or Above FDIC Insurance Limit	$ 599,300	$ 484,200

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Short-term Borrowings (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Short-term Borrowings
Period end balance for short-term borrowings	$ 1,514	$ 5,381
Interest rate at period end (as a percent)	0.10%	0.03%
Average daily balances of short-term borrowings	$ 7,718	$ 18,822
Average daily interest rate (as a percent)	0.72%	0.28%
Federal funds purchased
Short-term Borrowings
Average daily balances of short-term borrowings	$ 113	$ 225
Average daily interest rate (as a percent)	0.75%	0.45%
Securities sold under repurchase agreements
Short-term Borrowings
Period end balance for short-term borrowings	$ 1,514	$ 5,381
Interest rate at period end (as a percent)	0.10%	0.03%
Average daily balances of short-term borrowings	$ 5,771	$ 16,431
Average daily interest rate (as a percent)	0.39%	0.06%
Maximum month-end balances of short-term borrowings	$ 3,391	$ 62,995
Securities sold under repurchase agreements | Mortgage-backed securities
Short-term Borrowings
Fair value of short-term debt	7,400
Line of Credit - TCF Commercial Finance Canada, Inc.
Short-term Borrowings
Average daily balances of short-term borrowings	$ 1,834	$ 2,166
Average daily interest rate (as a percent)	1.75%	1.96%
Maximum month-end balances of short-term borrowings	$ 5,907	$ 5,519

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Long-term Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt instrument
Long-term borrowings	$ 713,996	$ 1,034,557
Federal Home Loan Bank advances
Debt instrument
Long-term borrowings	300,000	572,000
Variable-rate FHLB advances prepayable monthly	150,000
Federal Home Loan Bank advances | Maturity year 2016
Debt instrument
Long-term borrowings	150,000	$ 447,000
Federal Home Loan Bank advances | Maturity year 2016 | TCF Bank
Debt instrument
Loans pledged as collateral	$ 4,100,000
Federal Home Loan Bank advances | Maturity year 2016 | Minimum
Debt instrument
Stated Rate	0.71%	0.54%
Federal Home Loan Bank advances | Maturity year 2016 | Maximum
Debt instrument
Stated Rate	0.72%	1.17%
Federal Home Loan Bank advances | Maturity Year 2017
Debt instrument
Long-term borrowings	$ 0	$ 125,000
Stated Rate	0.00%
Federal Home Loan Bank advances | Maturity Year 2017 | Minimum
Debt instrument
Stated Rate		0.49%
Federal Home Loan Bank advances | Maturity Year 2017 | Maximum
Debt instrument
Stated Rate		0.51%
Federal Home Loan Bank advances | Maturity Year 2018
Debt instrument
Long-term borrowings	$ 150,000	$ 0
Stated Rate	0.54%	0.00%
Subordinated bank notes
Debt instrument
Long-term borrowings	$ 264,265	$ 331,098
Subordinated bank notes | Maturity year 2016
Debt instrument
Long-term borrowings	$ 0	$ 74,992
Stated Rate	0.00%	5.50%
Subordinated bank notes | Maturity Year 2022
Debt instrument
Long-term borrowings	$ 108,603	$ 108,454
Stated Rate	6.25%	6.25%
Subordinated bank notes | Maturity Year 2025
Debt instrument
Long-term borrowings	$ 148,003	$ 147,861
Stated Rate	4.60%	4.60%
Subordinated bank notes | Maturity Year 2025, Interest Rate Swap
Debt instrument
Long-term borrowings	$ 7,659	$ (209)
Discounted lease rentals
Debt instrument
Long-term borrowings	146,976	126,032
Discounted lease rentals | Maturity year 2016
Debt instrument
Long-term borrowings	$ 15,154	$ 48,120
Discounted lease rentals | Maturity year 2016 | Minimum
Debt instrument
Stated Rate	2.46%	2.39%
Discounted lease rentals | Maturity year 2016 | Maximum
Debt instrument
Stated Rate	6.88%	7.95%
Discounted lease rentals | Maturity Year 2017
Debt instrument
Long-term borrowings	$ 56,434	$ 41,969
Discounted lease rentals | Maturity Year 2017 | Minimum
Debt instrument
Stated Rate	2.45%	2.45%
Discounted lease rentals | Maturity Year 2017 | Maximum
Debt instrument
Stated Rate	7.88%	7.88%
Discounted lease rentals | Maturity Year 2018
Debt instrument
Long-term borrowings	$ 40,221	$ 24,496
Discounted lease rentals | Maturity Year 2018 | Minimum
Debt instrument
Stated Rate	2.55%	2.55%
Discounted lease rentals | Maturity Year 2018 | Maximum
Debt instrument
Stated Rate	7.95%	7.95%
Discounted lease rentals | Maturity Year 2019
Debt instrument
Long-term borrowings	$ 21,566	$ 9,329
Discounted lease rentals | Maturity Year 2019 | Minimum
Debt instrument
Stated Rate	2.53%	2.53%
Discounted lease rentals | Maturity Year 2019 | Maximum
Debt instrument
Stated Rate	6.00%	6.00%
Discounted lease rentals | Maturity Year 2020
Debt instrument
Long-term borrowings	$ 10,093	$ 2,035
Discounted lease rentals | Maturity Year 2020 | Minimum
Debt instrument
Stated Rate	2.64%	2.95%
Discounted lease rentals | Maturity Year 2020 | Maximum
Debt instrument
Stated Rate	6.90%	5.15%
Discounted lease rentals | Maturity Year 2021
Debt instrument
Long-term borrowings	$ 3,508	$ 83
Stated Rate		4.57%
Discounted lease rentals | Maturity Year 2021 | Minimum
Debt instrument
Stated Rate	2.88%
Discounted lease rentals | Maturity Year 2021 | Maximum
Debt instrument
Stated Rate	4.57%
Other long-term borrowings
Debt instrument
Long-term borrowings	$ 2,755	$ 5,427
Other long-term borrowings | Maturity year 2016
Debt instrument
Long-term borrowings	$ 0	$ 2,685
Stated Rate	0.00%	1.36%
Other long-term borrowings | Maturity Year 2017
Debt instrument
Long-term borrowings	$ 2,755	$ 2,742
Stated Rate	1.36%	1.36%

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Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations
Number of prior calendar years considered for payment of dividends in excess of net retained profit	2 years
Net profits for the current year combined with retained net profits for preceding two calendar years	$ 445,400
Maximum
Compliance with Regulatory Capital Requirements under Banking Regulations
Percentage of net retained profits for the current year combined with retained net profits for the preceding two calendar years that can be declared as dividend	100.00%
TCF
Regulatory Capital:
Common equity Tier 1 capital	$ 1,936,029	$ 1,814,442
Tier 1 capital	2,215,312	2,092,195
Total capital	$ 2,596,697	$ 2,487,060
Common equity Tier 1 capital ratio
Actual, Ratio	10.35%	10.00%
Tier 1 risk-based capital ratio
Actual, Ratio	11.85%	11.54%
Total risk-based capital ratio
Actual, Ratio	13.89%	13.71%
Tier 1 leverage ratio
Actual, Ratio	10.66%	10.46%
TCF Bank
Compliance with Regulatory Capital Requirements under Banking Regulations
Capital conservation buffer excluded from minimum capital requirement	0.625%
Regulatory Capital:
Common equity Tier 1 capital	$ 2,110,923	$ 1,992,584
Tier 1 capital	2,129,849	2,008,585
Total capital	$ 2,546,708	$ 2,425,682
Common equity Tier 1 capital ratio
Actual, Ratio	11.29%	10.99%
Well-Capitalized Capital Requirement, Ratio	6.50%
Minimum Capital Requirement, Ratio	4.50%
Tier 1 risk-based capital ratio
Actual, Ratio	11.39%	11.07%
Well-Capitalized Capital Requirement, Ratio	8.00%
Minimum Capital Requirement, Ratio	6.00%
Total risk-based capital ratio
Actual, Ratio	13.62%	13.37%
Well-Capitalized Capital Requirement, Ratio	10.00%
Minimum Capital Requirement, Ratio	8.00%
Tier 1 leverage ratio
Actual, Ratio	10.25%	10.04%
Well-Capitalized Capital Requirement, Ratio	5.00%
Minimum Capital Requirement, Ratio	4.00%

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Stock Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Restricted Stock
Restricted stock, shares activity
Outstanding at the beginning of the period (in shares)	3,273,086
Granted (in shares)	834,000
Forfeited/cancelled (in shares)	(205,483)
Vested (in shares)	(401,225)
Outstanding at the end of the period (in shares)	3,500,378	3,273,086
Restricted Stock, Weighted-Average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Outstanding at the beginning (in dollars per share)	$ 13.09
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	12.05
Weighted-Average Grant Date Fair Value, Forfeited/cancelled (in dollars per share)	13.54
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	13.10
Weighted-Average Grant Date Fair Value, Outstanding at the end (in dollars per share)	$ 12.81	$ 13.09
Stock options outstanding and exercisable
Unrecognized stock compensation expense for restricted stock awards and options	$ 27.0
Weighted-average amortization period	2 years
Restricted Stock | Minimum
Restricted Stock, Grant Date Fair Value Range
Grant Date Fair Value, Outstanding at the beginning (in dollars per share)	$ 7.73	6.16
Grant Date Fair Value, Granted (in dollars per share)	9.48
Grant Date Fair Value, Forfeited/canceled (in dollars per share)	6.16
Grant Date Fair Value, Vested (in dollars per share)	9.65
Grant Date Fair Value, Outstanding at the end (in dollars per share)	7.73	6.16
Restricted Stock | Maximum
Restricted Stock, Grant Date Fair Value Range
Grant Date Fair Value, Outstanding at the beginning (in dollars per share)	16.28	16.28
Grant Date Fair Value, Granted (in dollars per share)	13.05
Grant Date Fair Value, Forfeited/canceled (in dollars per share)	15.96
Grant Date Fair Value, Vested (in dollars per share)	15.96
Grant Date Fair Value, Outstanding at the end (in dollars per share)	$ 16.28	$ 16.28
Employee Stock Option
Stock options, shares activity
Outstanding at the beginning of the period (in shares)	1,379,000
Granted (in shares)	0
Exercised (in shares)	(800,000)
Forfeited/canceled (in shares)	(118,000)
Vested (in shares)	0
Outstanding at the end of the period (in shares)	461,000	1,379,000
Stock Options, Exercise Price Range
Weighted- Average Remaining Contractual Life in Years	1 year 3 months 22 days	2 years 2 months 1 day
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Outstanding at the beginning (in dollars per share)	$ 14.07
Weighted-Average Exercise Price, Granted (in dollars per share)	0.00
Weighted-Average Exercise Price, Exercised (in dollars per share)	12.85
Weighted-Average Exercise Price, Forfeited/canceled (in dollars per share)	15.75
Weighted-Average Exercise Price, Vested (in dollars per share)	0.00
Weighted-Average Exercise Price, Outstanding at the end (in dollars per share)	$ 15.75	$ 14.07
Stock options outstanding and exercisable
Stock Options Exercisable (in shares)	461,000
Stock Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 15.75
Employee Stock Option | Minimum
Stock Options, Exercise Price Range
Exercise price, Outstanding at the beginning (in dollars per share)	15.75	12.85
Exercise price, Granted (in dollars per share)	0.00
Exercise price, Exercised (in dollars per share)	12.85
Exercise price, Forfeited/canceled (in dollars per share)	15.75
Exercise price, Vested (in dollars per share)	0.00
Exercise price, Outstanding at the end (in dollars per share)	15.75	12.85
Stock options outstanding and exercisable
Exercise price, Stock options exercisable (in dollars per share)	15.75
Employee Stock Option | Maximum
Stock Options, Exercise Price Range
Exercise price, Outstanding at the beginning (in dollars per share)	15.75	15.75
Exercise price, Granted (in dollars per share)	0.00
Exercise price, Exercised (in dollars per share)	12.85
Exercise price, Forfeited/canceled (in dollars per share)	15.75
Exercise price, Vested (in dollars per share)	0.00
Exercise price, Outstanding at the end (in dollars per share)	15.75	$ 15.75
Stock options outstanding and exercisable
Exercise price, Stock options exercisable (in dollars per share)	$ 15.75
Omnibus Incentive Plan | Performance Based Restricted Stock
Stock options outstanding and exercisable
Outstanding number of shares to vest only if certain performance goals and service conditions are achieved	50,000
Omnibus Incentive Plan | Restricted Stock Units (RSUs)
Restricted stock, shares activity
Granted (in shares)	228,867
Stock options outstanding and exercisable
Restricted stock, maximum multiplier	150.00%
Weighted-average amortization period	1 year 10 months 24 days
Omnibus Incentive Plan | Employee Stock Option
Stock options, shares activity
Outstanding at the end of the period (in shares)	0
Incentive Stock Program | Performance Based Restricted Stock
Stock options outstanding and exercisable
Outstanding number of shares to vest only if certain performance goals and service conditions are achieved	1,050,000
Incentive Stock Program | Employee Stock Option
Stock options, shares activity
Outstanding at the end of the period (in shares)	0

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Employee Benefit Plans (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Pension Plan
Net periodic benefit plan (income) cost included in compensation and employee benefits expense
Interest cost	$ 321,000	$ 303,000	$ 961,000	$ 911,000
Return on plan assets	(147,000)	(159,000)	(440,000)	(479,000)
Net periodic benefit plan (income) cost	174,000	144,000	521,000	432,000
TCF contributions			0	0
Postretirement Plan
Net periodic benefit plan (income) cost included in compensation and employee benefits expense
Interest cost	37,000	39,000	113,000	115,000
Amortization of prior service cost	(12,000)	(12,000)	(35,000)	(35,000)
Net periodic benefit plan (income) cost	25,000	27,000	78,000	80,000
TCF contributions	$ 100,000	$ 100,000	$ 300,000	$ 300,000

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Derivative Instruments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Net Investment Hedges
Fair value of derivatives
Period for settling forward foreign exchange contracts	34 days
Interest rate contracts | Not Designated as Hedges
Fair value of derivatives
Derivative asset, notional amount	$ 126,451	$ 111,347
Interest rate contracts | Designated as Hedges
Fair value of derivatives
Derivative asset, notional amount	$ 150,000
Derivative, fixed interest rate	4.60%
Forward foreign exchange contracts | Not Designated as Hedges
Fair value of derivatives
Period for settling forward foreign exchange contracts	34 days
Interest Rate Swap | Not Designated as Hedges | Minimum
Fair value of derivatives
Period of contracts having fixed maturity dates	3 years
Interest Rate Swap | Not Designated as Hedges | Maximum
Fair value of derivatives
Period of contracts having fixed maturity dates	7 years
Interest rate lock commitments | Maximum
Fair value of derivatives
Derivative, higher remaining maturity range	60 days
Interest rate lock commitments | Not Designated as Hedges
Fair value of derivatives
Derivative asset, notional amount	$ 52,088	$ 50,667

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Derivative Instruments (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivative assets
Gross Amounts Recognized	$ 16,326	$ 8,737
Gross Amounts Offset	(5,389)	(2,081)
Net Amount Presented	10,937	6,656
Derivative liabilities
Gross Amounts Recognized	5,228	3,827
Gross Amounts Offset	(5,180)	(3,703)
Net Amount Presented	48	124
Interest rate contracts | Designated as Hedges
Derivative assets
Notional Amount	150,000
Gross Amounts Recognized	8,990
Gross Amounts Offset	(3,703)
Net Amount Presented	5,287
Derivative liabilities
Notional Amount		150,000
Gross Amounts Recognized		142
Gross Amounts Offset		(142)
Net Amount Presented		0
Interest rate contracts | Not Designated as Hedges
Derivative assets
Notional Amount	126,451	111,347
Gross Amounts Recognized	3,827	2,093
Gross Amounts Offset	0	0
Net Amount Presented	3,827	2,093
Derivative liabilities
Notional Amount	126,451	111,347
Gross Amounts Recognized	4,002	2,175
Gross Amounts Offset	(4,002)	(2,175)
Net Amount Presented	0	0
Forward foreign exchange contracts | Designated as Hedges
Derivative assets
Notional Amount	59,649	47,409
Gross Amounts Recognized	447	858
Gross Amounts Offset	(182)	0
Net Amount Presented	265	858
Forward foreign exchange contracts | Not Designated as Hedges
Derivative assets
Notional Amount	194,259	260,678
Gross Amounts Recognized	2,196	5,057
Gross Amounts Offset	(1,504)	(2,081)
Net Amount Presented	692	2,976
Derivative liabilities
Notional Amount	202,486	187,902
Gross Amounts Recognized	835	1,192
Gross Amounts Offset	(791)	(1,081)
Net Amount Presented	44	111
Other contracts | Not Designated as Hedges
Derivative liabilities
Notional Amount	13,804	13,804
Gross Amounts Recognized	387	305
Gross Amounts Offset	(387)	(305)
Net Amount Presented	0	0
Interest rate lock commitments | Not Designated as Hedges
Derivative assets
Notional Amount	52,088	50,667
Gross Amounts Recognized	866	729
Gross Amounts Offset	0	0
Net Amount Presented	866	729
Derivative liabilities
Notional Amount	374	3,218
Gross Amounts Recognized	4	13
Gross Amounts Offset	0	0
Net Amount Presented	$ 4	$ 13

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Derivative Instruments (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative instruments, gain (loss)
Net gain (loss) recognized	$ 5,841	$ 27,586	$ (22,460)	$ 56,364
Net investment hedges:
Net unrealized gain (loss)	904	2,858	(2,691)	5,772
Other Comprehensive Income (Loss) | Designated as Hedges | Net Investment Hedges
Net investment hedges:
Net unrealized gain (loss)	904	2,858	(2,691)	5,772
Non-interest income | Designated as Hedges | Fair Value Hedging
Derivative instruments, gain (loss)
Net gain (loss) recognized	1,333	(5,425)	(7,868)	(1,862)
Interest rate contracts
Derivative, Collateral
Cash Collateral Posted	2,800		2,800
Interest rate contracts | Non-interest income | Designated as Hedges | Fair Value Hedging
Derivative instruments, gain (loss)
Net gain (loss) recognized	(1,407)	6,296	9,132	2,029
Interest rate contracts | Non-interest income | Not Designated as Hedges
Derivative instruments, gain (loss)
Net gain (loss) recognized	27	(48)	(92)	(28)
Forward foreign exchange contracts
Credit risk-related contingent features
Forward foreign exchange contracts with credit risk-related contingent features, notional value	121,900		121,900
Additional collateral required, if TCF was rated less than BB- by Standard and Poor's	2,400		2,400
Forward foreign exchange contracts with credit risk-related contingent features, net liability amount	0		0
Derivative, Collateral
Cash Collateral Posted	400		400
Cash Collateral Received	(1,200)		(1,200)
Forward foreign exchange contracts | Non-interest expense | Not Designated as Hedges
Derivative instruments, gain (loss)
Net gain (loss) recognized	5,979	26,574	(23,459)	55,866
Interest rate lock commitments | Non-interest income | Not Designated as Hedges
Derivative instruments, gain (loss)
Net gain (loss) recognized	(91)	189	146	359
Other contracts
Derivative, Collateral
Cash Collateral Posted	1,400		1,400
Other contracts | Non-interest expense | Not Designated as Hedges
Derivative instruments, gain (loss)
Net gain (loss) recognized	$ 0	$ 0	$ (319)	$ 0

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Fair Values Disclosures (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Measurement of fair value on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO and repossessed assets, written down	$ 2.0	$ 2.9	$ 7.0	$ 10.4
Subordinated bank notes | Maturity Year 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Face Amount	$ 150.0		$ 150.0

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Fair Values Disclosures (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Securities held to maturity	$ 185,230	$ 201,920
Other Real Estate Owned	33,700	50,000
Repossessed and Returned Equipment at Carrying Value	8,800	8,000
U.S. Government sponsored enterprises and federal agencies
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Securities held to maturity	181,558	197,410
Mortgage-backed securities, Other
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Securities held to maturity	872	1,110
Measurement of fair value on a recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	1,507,782	972,537
Liabilities, Fair value carrying amount	27,583	23,577
Measurement of fair value on a recurring basis | Loans and leases held for sale
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	6,331	10,568
Measurement of fair value on a recurring basis | Interest-only strip
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	43,145	44,332
Measurement of fair value on a recurring basis | Forward foreign exchange contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	2,643	5,915
Liabilities, Fair value carrying amount	835	1,192
Measurement of fair value on a recurring basis | Interest rate contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	12,817	2,093
Liabilities, Fair value carrying amount	4,002	2,317
Measurement of fair value on a recurring basis | Interest rate lock commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	866	729
Liabilities, Fair value carrying amount	4	13
Measurement of fair value on a recurring basis | Forward loan sales commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	3	284
Liabilities, Fair value carrying amount	199	19
Measurement of fair value on a recurring basis | Assets held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	22,156	19,731
Measurement of fair value on a recurring basis | Liabilities held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	22,156	19,731
Measurement of fair value on a recurring basis | Other contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	387	305
Measurement of fair value on a recurring basis | U.S. Government sponsored enterprises and federal agencies
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	805,275	621,930
Measurement of fair value on a recurring basis | Mortgage-backed securities, Other
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	22	34
Measurement of fair value on a recurring basis | Obligations of states and political subdivisions
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	614,524	266,921
Measurement of fair value on a non-recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	154,368	179,645
Securities held to maturity	3,272	1,110
Loans	122,457	130,797
Repossessed and returned assets	4,859	4,870
Measurement of fair value on a non-recurring basis | Consumer real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	19,906	37,619
Measurement of fair value on a non-recurring basis | Commercial real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	3,874	5,249
Level 1 | Measurement of fair value on a recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	22,156	19,731
Liabilities, Fair value carrying amount	22,156	19,731
Level 1 | Measurement of fair value on a recurring basis | Loans and leases held for sale
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Interest-only strip
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Forward foreign exchange contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Interest rate contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Interest rate lock commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Forward loan sales commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Assets held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	22,156	19,731
Level 1 | Measurement of fair value on a recurring basis | Liabilities held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	22,156	19,731
Level 1 | Measurement of fair value on a recurring basis | Other contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | U.S. Government sponsored enterprises and federal agencies
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Mortgage-backed securities, Other
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a recurring basis | Obligations of states and political subdivisions
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 1 | Measurement of fair value on a non-recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Securities held to maturity	0	0
Loans	0	0
Repossessed and returned assets	0	0
Level 1 | Measurement of fair value on a non-recurring basis | Consumer real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	0	0
Level 1 | Measurement of fair value on a non-recurring basis | Commercial real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	0	0
Level 2 | Measurement of fair value on a recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	1,435,259	896,859
Liabilities, Fair value carrying amount	4,837	3,509
Level 2 | Measurement of fair value on a recurring basis | Loans and leases held for sale
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Interest-only strip
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Forward foreign exchange contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	2,643	5,915
Liabilities, Fair value carrying amount	835	1,192
Level 2 | Measurement of fair value on a recurring basis | Interest rate contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	12,817	2,093
Liabilities, Fair value carrying amount	4,002	2,317
Level 2 | Measurement of fair value on a recurring basis | Interest rate lock commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Forward loan sales commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Assets held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Liabilities held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Other contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | U.S. Government sponsored enterprises and federal agencies
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	805,275	621,930
Level 2 | Measurement of fair value on a recurring basis | Mortgage-backed securities, Other
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 2 | Measurement of fair value on a recurring basis | Obligations of states and political subdivisions
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	614,524	266,921
Level 2 | Measurement of fair value on a non-recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	2,641	2,673
Securities held to maturity	0	0
Loans	0	0
Repossessed and returned assets	2,641	2,673
Level 2 | Measurement of fair value on a non-recurring basis | Consumer real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	0	0
Level 2 | Measurement of fair value on a non-recurring basis | Commercial real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	0	0
Level 3 | Measurement of fair value on a recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	50,367	55,947
Liabilities, Fair value carrying amount	590	337
Level 3 | Measurement of fair value on a recurring basis | Loans and leases held for sale
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	6,331	10,568
Level 3 | Measurement of fair value on a recurring basis | Interest-only strip
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	43,145	44,332
Level 3 | Measurement of fair value on a recurring basis | Forward foreign exchange contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a recurring basis | Interest rate contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Liabilities, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a recurring basis | Interest rate lock commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	866	729
Liabilities, Fair value carrying amount	4	13
Level 3 | Measurement of fair value on a recurring basis | Forward loan sales commitments
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	3	284
Liabilities, Fair value carrying amount	199	19
Level 3 | Measurement of fair value on a recurring basis | Assets held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a recurring basis | Liabilities held in trust for deferred compensation plans
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a recurring basis | Other contracts
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Liabilities, Fair value carrying amount	387	305
Level 3 | Measurement of fair value on a recurring basis | U.S. Government sponsored enterprises and federal agencies
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a recurring basis | Mortgage-backed securities, Other
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	22	34
Level 3 | Measurement of fair value on a recurring basis | Obligations of states and political subdivisions
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	0	0
Level 3 | Measurement of fair value on a non-recurring basis
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Assets, Fair value carrying amount	151,727	176,972
Securities held to maturity	3,272	1,110
Loans	122,457	130,797
Repossessed and returned assets	2,218	2,197
Level 3 | Measurement of fair value on a non-recurring basis | Consumer real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	19,906	37,619
Level 3 | Measurement of fair value on a non-recurring basis | Commercial real estate
Fair Value, Assets and liabilities measured at fair value on Recurring and Nonrecurring basis
Other Real Estate Owned	$ 3,874	$ 5,249

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Fair Values Disclosures (Details 3) - Level 3 - Measurement of fair value on a recurring basis - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest rate lock commitments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	$ 953	$ 455	$ 716	$ 285
Net income	(91)	188	146	358
Other comprehensive income (loss)	0		0
Sales	0	0	0	0
Originations	0	0	0	0
Principal paydowns / settlements	0	0	0	0
Ending balance	862	643	862	643
Forward loan sales commitments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	(317)	(5)	265	(23)
Net income	121	(13)	(461)	5
Other comprehensive income (loss)	0		0
Sales	0	0	0	0
Originations	0	0	0	0
Principal paydowns / settlements	0	0	0	0
Ending balance	(196)	(18)	(196)	(18)
Other Contract
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	(466)	(465)	(305)	(621)
Net income	0	0	(318)	0
Other comprehensive income (loss)	0		0
Sales	0	0	0	0
Originations	0	0	0	0
Principal paydowns / settlements	79	79	236	235
Ending balance	(387)	(386)	(387)	(386)
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	25	45	34	55
Net income	0	0	0	0
Other comprehensive income (loss)	0		0
Sales	0	0	0	0
Originations	0	0	0	0
Principal paydowns / settlements	(3)	(7)	(12)	(17)
Ending balance	22	38	22	38
Loans and leases held for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	7,565	4,962	10,568	3,308
Net income	(72)	18	126	50
Other comprehensive income (loss)	0		0
Sales	(95,901)	(76,677)	(257,641)	(212,940)
Originations	94,739	77,502	253,278	215,387
Principal paydowns / settlements	0	0	0	0
Ending balance	6,331	5,805	6,331	5,805
Interest-only Strips
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	48,411	55,944	44,332	69,789
Net income	(819)	1,520	1,697	5,309
Other comprehensive income (loss)	784		784
Sales	0	0	0	0
Originations	2,513	2,711	19,121	6,948
Principal paydowns / settlements	(7,744)	(9,476)	(22,789)	(31,347)
Ending balance	$ 43,145	$ 50,699	$ 43,145	$ 50,699

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Fair Values Disclosures (Details 4) - Loans and leases held for sale - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value carrying amount	$ 6,331		$ 6,331		$ 10,568
Aggregate unpaid principal amount	6,202		6,202		10,547
Fair value carrying amount less aggregate unpaid principal	129		129		$ 21
Gain (Loss) on Sales of Consumer Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Net gain from initial measurement of the above loans and subsequent changes in fair value for loans outstanding	$ 2,100	$ 1,700	$ 5,900	$ 4,700

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Fair Values Disclosures (Details 5) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Financial instrument assets:
Securities held to maturity	$ 185,230		$ 201,920
Loans:
Consumer real estate	4,987,324		5,464,272
Inventory finance	2,261,086		2,146,754
Auto finance	2,731,900		2,647,596
Other	17,886		19,297
Allowance for loan losses	(155,841)	$ (158,572)	(156,054)	$ (153,962)	$ (156,115)	$ (164,169)
Carrying Amount
Financial instrument assets:
Investments	59,707		70,537
Securities held to maturity	185,230		201,920
Loans and leases held for sale	386,673		157,625
Loans:
Consumer real estate	4,987,324		5,464,272
Commercial real estate	2,516,048		2,593,429
Commercial business	634,151		552,403
Equipment finance	1,997,295		1,909,672
Inventory finance	2,261,086		2,146,754
Auto finance	2,731,900		2,647,596
Other	17,886		19,297
Allowance for loan losses	(155,841)		(156,054)
Securitization receivable	18,743
Total financial instrument assets	15,640,202		15,607,451
Financial instrument liabilities:
Deposits	17,234,206		16,719,989
Long-term borrowings	713,996		1,034,557
Total financial instrument liabilities	17,948,202		17,754,546
Financial instruments with off-balance sheet risk:
Commitments to extend credit	21,469		23,937
Standby letters of credit	(35)		(35)
Total financial instruments with off-balance sheet risk	21,434		23,902
Estimated Fair Value
Financial instrument assets:
Investments	59,707		70,537
Securities held to maturity	197,356		206,953
Loans and leases held for sale	400,494		165,387
Loans:
Consumer real estate	5,120,863		5,543,273
Commercial real estate	2,477,768		2,556,018
Commercial business	611,307		531,274
Equipment finance	1,987,842		1,888,664
Inventory finance	2,246,040		2,132,435
Auto finance	2,741,674		2,650,429
Other	13,642		14,699
Allowance for loan losses	0		0
Securitization receivable	18,743
Total financial instrument assets	15,875,436		15,759,669
Financial instrument liabilities:
Deposits	17,259,787		16,743,630
Long-term borrowings	717,719		1,041,273
Total financial instrument liabilities	17,977,506		17,784,903
Financial instruments with off-balance sheet risk:
Commitments to extend credit	21,469		23,937
Standby letters of credit	(35)		(35)
Total financial instruments with off-balance sheet risk	21,434		23,902
Estimated Fair Value | Level 1
Financial instrument assets:
Investments	0		0
Securities held to maturity	0		0
Loans and leases held for sale	0		0
Loans:
Consumer real estate	0		0
Commercial real estate	0		0
Commercial business	0		0
Equipment finance	0		0
Inventory finance	0		0
Auto finance	0		0
Other	0		0
Allowance for loan losses	0		0
Securitization receivable	0
Total financial instrument assets	0		0
Financial instrument liabilities:
Deposits	12,950,914		12,816,196
Long-term borrowings	0		0
Total financial instrument liabilities	12,950,914		12,816,196
Financial instruments with off-balance sheet risk:
Commitments to extend credit	0		0
Standby letters of credit	0		0
Total financial instruments with off-balance sheet risk	0		0
Estimated Fair Value | Level 2
Financial instrument assets:
Investments	59,707		70,537
Securities held to maturity	193,684		202,443
Loans and leases held for sale	0		0
Loans:
Consumer real estate	0		0
Commercial real estate	0		0
Commercial business	0		0
Equipment finance	0		0
Inventory finance	0		0
Auto finance	0		0
Other	0		0
Allowance for loan losses	0		0
Securitization receivable	0
Total financial instrument assets	253,391		272,980
Financial instrument liabilities:
Deposits	4,308,873		3,927,434
Long-term borrowings	714,964		1,035,846
Total financial instrument liabilities	5,023,837		4,963,280
Financial instruments with off-balance sheet risk:
Commitments to extend credit	21,469		23,937
Standby letters of credit	(35)		(35)
Total financial instruments with off-balance sheet risk	21,434		23,902
Estimated Fair Value | Level 3
Financial instrument assets:
Investments	0		0
Securities held to maturity	3,672		4,510
Loans and leases held for sale	400,494		165,387
Loans:
Consumer real estate	5,120,863		5,543,273
Commercial real estate	2,477,768		2,556,018
Commercial business	611,307		531,274
Equipment finance	1,987,842		1,888,664
Inventory finance	2,246,040		2,132,435
Auto finance	2,741,674		2,650,429
Other	13,642		14,699
Allowance for loan losses	0		0
Securitization receivable	18,743
Total financial instrument assets	15,622,045		15,486,689
Financial instrument liabilities:
Deposits	0		0
Long-term borrowings	2,755		5,427
Total financial instrument liabilities	2,755		5,427
Financial instruments with off-balance sheet risk:
Commitments to extend credit	0		0
Standby letters of credit	0		0
Total financial instruments with off-balance sheet risk	$ 0		$ 0

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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Basic Earnings Per Common Share:
Net income available to common stockholders	$ 51,445	$ 47,728	$ 147,491	$ 130,090
Earnings allocated to participating securities	13	12	38	34
Earnings allocated to common stock	$ 51,432	$ 47,716	$ 147,453	$ 130,056
Weighted-average common shares outstanding for basic earnings per common share (in shares)	167,366,069	165,990,432	167,155,393	165,479,029
Basic earnings per common share (in dollars per share)	$ 0.31	$ 0.29	$ 0.88	$ 0.79
Diluted Earnings Per Common Share:
Earnings allocated to common stock	$ 51,432	$ 47,716	$ 147,453	$ 130,056
Weighted-average common shares outstanding used in basic earnings per common share calculation (in shares)	167,366,069	165,990,432	167,155,393	165,479,029
Net dilutive effect of:
Non-participating restricted stock (in shares)	516,083	355,408	478,641	312,402
Stock options (in shares)	85,467	210,280	73,866	221,908
Weighted-average common shares outstanding for diluted earnings per common share (in shares)	167,967,619.000	166,556,120.00	167,707,900.0	166,013,339.000
Diluted earnings per common share (in dollars per share)	$ 0.31	$ 0.29	$ 0.88	$ 0.78

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Earnings Per Common Share (Details 2) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Non-participating restricted stock, stock options and warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	5.1	4.4	5.1	4.6

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Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Income and Expenses [Abstract]
Loan and lease processing	$ 7,035	$ 6,626	$ 19,526	$ 17,950
Professional fees	3,993	5,034	13,170	15,793
Card processing and issuance cost	3,952	3,914	11,634	12,855
Outside processing	3,728	3,383	10,941	10,413
Travel	2,888	2,704	9,185	8,372
Telecommunications	2,696	2,720	8,477	8,918
Other	25,559	21,369	70,253	65,469
Total other expense	$ 49,851	$ 45,750	$ 143,186	$ 139,770

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Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Segment Reporting Information
Net interest income	$ 212,018	$ 205,270	$ 636,660	$ 614,719
Provision for credit losses	13,894	10,018	45,986	35,337
Non-interest income	119,674	112,252	350,232	326,339
Non-interest expense	228,878	222,284	684,528	672,160
Income tax expense (benefit)	30,257	30,528	86,766	82,258
Income after income tax expense	58,663	54,692	169,612	151,303
Income attributable to non-controlling interest	2,371	2,117	7,580	6,672
Preferred stock dividends	4,847	4,847	14,541	14,541
Net income available to common stockholders	51,445	47,728	147,491	130,090
Total assets	21,084,156	20,123,782	21,084,156	20,123,782	$ 20,689,609
Revenues from external customers:
Interest income	232,726	223,604	699,072	666,479
Non-interest income	119,674	112,252	350,232	326,339
Total	352,400	335,856	1,049,304	992,818
Operating | Consumer Banking
Segment Reporting Information
Net interest income	140,887	136,160	420,886	402,127
Provision for credit losses	10,720	8,284	36,278	30,184
Non-interest income	89,373	81,518	254,130	239,782
Non-interest expense	165,668	160,624	491,632	482,900
Income tax expense (benefit)	19,367	18,311	52,824	47,850
Income after income tax expense	34,505	30,459	94,282	80,975
Income attributable to non-controlling interest	0	0	0	0
Preferred stock dividends	0	0	0	0
Net income available to common stockholders	34,505	30,459	94,282	80,975
Total assets	8,759,858	8,859,028	8,759,858	8,859,028
Revenues from external customers:
Interest income	111,107	110,420	336,176	325,826
Non-interest income	89,373	81,518	254,130	239,782
Total	200,480	191,938	590,306	565,608
Operating | Wholesale Banking
Segment Reporting Information
Net interest income	85,721	83,717	257,917	254,247
Provision for credit losses	3,174	1,734	9,708	5,153
Non-interest income	30,393	29,856	94,794	84,463
Non-interest expense	61,382	59,430	184,217	180,225
Income tax expense (benefit)	17,355	18,526	52,866	53,947
Income after income tax expense	34,203	33,883	105,920	99,385
Income attributable to non-controlling interest	2,371	2,117	7,580	6,672
Preferred stock dividends	0	0	0	0
Net income available to common stockholders	31,832	31,766	98,340	92,713
Total assets	9,902,952	9,336,974	9,902,952	9,336,974
Revenues from external customers:
Interest income	112,834	106,629	338,461	322,347
Non-interest income	30,393	29,856	94,794	84,463
Total	143,227	136,485	433,255	406,810
Operating | Enterprise Services
Segment Reporting Information
Net interest income	(14,590)	(14,607)	(42,143)	(41,655)
Provision for credit losses	0	0	0	0
Non-interest income	(92)	878	1,308	2,094
Non-interest expense	1,828	2,230	8,679	9,035
Income tax expense (benefit)	(6,465)	(6,309)	(18,924)	(19,539)
Income after income tax expense	(10,045)	(9,650)	(30,590)	(29,057)
Income attributable to non-controlling interest	0	0	0	0
Preferred stock dividends	4,847	4,847	14,541	14,541
Net income available to common stockholders	(14,892)	(14,497)	(45,131)	(43,598)
Total assets	2,421,346	1,927,780	2,421,346	1,927,780
Revenues from external customers:
Interest income	8,785	6,555	24,435	18,306
Non-interest income	(92)	878	1,308	2,094
Total	$ 8,693	$ 7,433	$ 25,743	$ 20,400

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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2014
Securities available for sale and interest-only strips, Before Tax
Unrealized gains (losses) arising during the period, Before Tax	$ (7,624)	$ 9,972	$ 32,639	$ 2,971
Reclassification of net (gains) losses to net income, Before Tax	425	281	1,448	871
Net investment hedges, Net of Tax
Unrealized gains (losses) arising during the period, Before Tax	904	2,858	(2,691)	5,772
Foreign currency translation adjustment, Net of Tax
Unrealized gains (losses) arising during the period, Before Tax	(957)	(3,049)	2,791	(6,318)
Recognized postretirement prior service cost, Net of Tax
Reclassification of net (gains) losses to net income, Before Tax	(12)	(12)	(35)	(35)
Total other comprehensive loss, Net of Tax
Total other comprehensive income (loss), Before Tax	(7,264)	10,050	34,152	3,261
Total other comprehensive income (loss), Tax Effect	2,396	(4,947)	(11,911)	(3,618)
Total other comprehensive income (loss)	(4,868)	5,103	22,241	(357)
Available-for-sale Securities Transferred to Held-to-maturity Securities Value					$ 191,700
Unrealized Holding Gain (Loss) Transfers from Available for Sale to Held to Maturity Retained in Accumulated Other Comprehensive Income			13,300	15,100
Securities Available for Sale and Interest-only Strips
Securities available for sale and interest-only strips, Before Tax
Unrealized gains (losses) arising during the period, Before Tax	(7,624)	9,972	32,639	2,971
Reclassification of net (gains) losses to net income, Before Tax	425	281	1,448	871
Net unrealized gains (losses), Before Tax	(7,199)	10,253	34,087	3,842
Securities available for sale and interest-only strips, Tax Effect
Unrealized gains (losses) arising during the period, Tax Effect	2,896	(3,766)	(12,396)	(1,122)
Reclassification of net (gains) losses to net income, Tax Effect	(161)	(106)	(550)	(329)
Net unrealized gains (losses), Tax Effect	2,735	(3,872)	(12,946)	(1,451)
Securities available for sale and interest-only strips, Net of Tax
Unrealized gains (losses) arising during the period, Net of Tax	(4,728)	6,206	20,243	1,849
Reclassification of net (gains) losses to net income, Net of Tax	264	175	898	542
Net unrealized gains (losses), Net of Tax	(4,464)	6,381	21,141	2,391
Total other comprehensive loss, Net of Tax
Total other comprehensive income (loss)	(4,464)	6,381	21,141	2,391
Net Investment Hedges
Net investment hedges, Net of Tax
Unrealized gains (losses) arising during the period, Before Tax	904	2,858	(2,691)	5,772
Unrealized gains (losses) arising during the period, Tax Effect	(343)	(1,079)	1,022	(2,180)
Unrealized gains (losses) arising during the period, Net of Tax	561	1,779	(1,669)	3,592
Total other comprehensive loss, Net of Tax
Total other comprehensive income (loss)	561	1,779	(1,669)	3,592
Foreign Currency Translation Adjustment
Foreign currency translation adjustment, Net of Tax
Unrealized gains (losses) arising during the period, Before Tax	(957)	(3,049)	2,791	(6,318)
Unrealized gains (losses) arising during the period, Tax Effect	0	0	0	0
Unrealized gains (losses) arising during the period, Net of Tax	(957)	(3,049)	2,791	(6,318)
Total other comprehensive loss, Net of Tax
Total other comprehensive income (loss)	(957)	(3,049)	2,791	(6,318)
Recognized Postretirement Prior Service Cost
Recognized postretirement prior service cost, Net of Tax
Reclassification of net (gains) losses to net income, Before Tax	(12)	(12)	(35)	(35)
Reclassification of net (gains) losses to net income, Tax Effect	4	4	13	13
Reclassification of net (gains) losses to net income, Net of Tax	(8)	(8)	(22)	(22)
Total other comprehensive loss, Net of Tax
Total other comprehensive income (loss)	$ (8)	$ (8)	$ (22)	$ (22)

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Accumulated Other Comprehensive Income (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Changes in accumulated other comprehensive income by component
Comprehensive income at the beginning of the period	$ 11,763	$ (16,370)	$ (15,346)	$ (10,910)
Other comprehensive income (loss)	(5,124)	4,936	21,365	(877)
Amounts reclassified from accumulated other comprehensive income (loss)	256	167	876	520
Total other comprehensive income (loss)	(4,868)	5,103	22,241	(357)
Comprehensive income at the end of the period	6,895	(11,267)	6,895	(11,267)
Securities Available for Sale and Interest-only Strips
Changes in accumulated other comprehensive income by component
Comprehensive income at the beginning of the period	15,898	(12,881)	(9,707)	(8,891)
Other comprehensive income (loss)	(4,728)	6,206	20,243	1,849
Amounts reclassified from accumulated other comprehensive income (loss)	264	175	898	542
Total other comprehensive income (loss)	(4,464)	6,381	21,141	2,391
Comprehensive income at the end of the period	11,434	(6,500)	11,434	(6,500)
Net Investment Hedges
Changes in accumulated other comprehensive income by component
Comprehensive income at the beginning of the period	5,019	4,349	7,249	2,536
Other comprehensive income (loss)	561	1,779	(1,669)	3,592
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive income (loss)	561	1,779	(1,669)	3,592
Comprehensive income at the end of the period	5,580	6,128	5,580	6,128
Foreign Currency Translation Adjustment
Changes in accumulated other comprehensive income by component
Comprehensive income at the beginning of the period	(9,316)	(8,029)	(13,064)	(4,760)
Other comprehensive income (loss)	(957)	(3,049)	2,791	(6,318)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive income (loss)	(957)	(3,049)	2,791	(6,318)
Comprehensive income at the end of the period	(10,273)	(11,078)	(10,273)	(11,078)
Recognized Postretirement Prior Service Cost
Changes in accumulated other comprehensive income by component
Comprehensive income at the beginning of the period	162	191	176	205
Other comprehensive income (loss)	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	(8)	(8)	(22)	(22)
Total other comprehensive income (loss)	(8)	(8)	(22)	(22)
Comprehensive income at the end of the period	$ 154	$ 183	$ 154	$ 183