10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 FORM 10-Q

☒    Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended June 30, 2021

 OR

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

For the transition period from                   to                   

Commission File Number 001-34582

NORTHWEST BANCSHARES, INC.

(Exact name of registrant as specified in its charter)

Maryland			27-0950358
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
100 Liberty Street	Warren,	Pennsylvania	16365
(Address of Principal Executive Offices)			(Zip Code)

(814) 726-2140

(Registrant’s telephone number, including area code)

Not applicable

  (Former name, former address and former fiscal year, if changed since last report)

    Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes ☐ No ☒

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading symbol(s)	Name of each exchange on which registered
Common Stock, 0.01 Par Value	NWBI	NASDAQ Stock Market, LLC

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 ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).  Yes ☒ No ☐

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

    ☒    Large accelerated filer     ☐    Accelerated filer

    ☐    Non-accelerated filer     ☐    Smaller reporting company

            ☐    Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

Common Stock ($0.01 par value), 126,887,881 shares outstanding as of July 31, 2021.

NORTHWEST BANCSHARES, INC.

Table of Contents

PART I	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Statements of Financial Condition as of June 30, 2021 and December 31, 2020 (Unaudited)	1
	Consolidated Statements of Income for the quarter ended June 30, 2021 and 2020 (Unaudited)	2
	Consolidated Statements of Comprehensive Income for the quarter ended June 30, 2021 and 2020 (Unaudited)	3
	Consolidated Statements of Changes in Shareholders’ Equity for the quarter ended June 30, 2021 and 2020 (Unaudited)	4
	Consolidated Statements of Cash Flows for the quarter ended June 30, 2021 and 2020 (Unaudited)	6
	Notes to Consolidated Financial Statements (Unaudited)	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	46
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	60
Item 4.	Controls and Procedures	61
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings	61
Item 1A.	Risk Factors	61
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	62
Item 3.	Defaults Upon Senior Securities	62
Item 4.	Mine Safety Disclosures	62
Item 5.	Other information	62
Item 6.	Exhibits	63
	Signature	64

Item 1.        FINANCIAL STATEMENTS

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited)

(in thousands, except share data)

	June 30, 2021		December 31, 2020
Assets
Cash and cash equivalents	$	857,152	736,277
Marketable securities available-for-sale (amortized cost of $1,593,813 and $1,375,685, respectively)	1,599,024		1,398,941
Marketable securities held-to-maturity (fair value of $632,620 and $179,666, respectively)	639,424		178,887
Total cash and cash equivalents and marketable securities	3,095,600		2,314,105
Loans held-for-sale	29,055		58,786
Loans held for investment	10,280,925		10,522,063
Allowance for credit losses	(117,330)		(134,427)
Loans receivable, net	10,192,650		10,446,422
FHLB stock, at cost	23,287		21,748
Accrued interest receivable	27,585		35,554
Real estate owned, net	1,353		2,232
Premises and equipment, net	156,076		161,538
Bank-owned life insurance	253,539		253,951
Goodwill	380,997		382,279
Other intangible assets, net	15,362		19,936
Other assets	151,607		168,503
Total assets	$	14,298,056	13,806,268
Liabilities and shareholders’ equity
Liabilities:
Noninterest-bearing demand deposits	$	3,002,632	2,716,224
Interest-bearing demand deposits	2,824,219		2,755,950
Money market deposit accounts	2,538,607		2,437,539
Savings deposits	2,262,152		2,047,424
Time deposits	1,463,098		1,642,096
Total deposits	12,090,708		11,599,233
Borrowed funds	257,377		283,044
Junior subordinated debentures	128,924		128,794
Advances by borrowers for taxes and insurance	53,608		45,230
Accrued interest payable	1,820		2,054
Other liabilities	190,258		209,210
Total liabilities	12,722,695		12,267,565
Shareholders’ equity:
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	—		—
Common stock, $0.01 par value: 500,000,000 shares authorized, 127,907,885 and 127,019,452 shares issued and outstanding, respectively	1,279		1,270
Additional paid-in capital	1,025,174		1,015,502
Retained earnings	595,100		555,480
Accumulated other comprehensive loss	(46,192)		(33,549)
Total shareholders’ equity	1,575,361		1,538,703
Total liabilities and shareholders’ equity	$	14,298,056	13,806,268

See accompanying notes to unaudited Consolidated Financial Statements.

1

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

(in thousands, except share data) 

	Quarter ended June 30,			Six months ended June 30,
	2021		2020	2021	2020
Interest income:
Loans receivable	$	95,255	103,012	197,573	197,985
Mortgage-backed securities	5,680		4,038	9,880	8,213
Taxable investment securities	693		439	1,327	1,087
Tax-free investment securities	594		564	1,169	749
FHLB stock dividends	138		309	254	571
Interest-earning deposits	192		185	375	320
Total interest income	102,552		108,547	210,578	208,925
Interest expense:
Deposits	4,773		9,336	10,287	20,739
Borrowed funds	2,050		1,133	4,104	2,880
Total interest expense	6,823		10,469	14,391	23,619
Net interest income	95,729		98,078	196,187	185,306
Provision for credit losses	—		51,750	(5,620)	79,387
Net interest income after provision for credit losses	95,729		46,328	201,807	105,919
Noninterest income:
Gain/(loss) on sale of investments	(105)		(8)	(126)	173
Gain on sale of loans	—		—	—	1,302
Service charges and fees	12,744		13,069	25,138	28,185
Trust and other financial services income	7,435		4,823	13,919	9,824
Insurance commission income	1,043		2,395	3,589	4,767
Gain/(loss) on real estate owned, net	166		(97)	124	(188)
Income from bank-owned life insurance	1,639		1,248	3,375	2,284
Mortgage banking income	3,811		12,022	9,831	13,216
Gain on sale of insurance business	25,327		—	25,327	—
Other operating income	2,648		2,044	5,484	3,909
Total noninterest income	54,708		35,496	86,661	63,472
Noninterest expense:
Compensation and employee benefits	48,894		40,049	96,133	82,795
Premises and occupancy costs	7,410		7,195	16,224	14,666
Office operations	3,317		3,711	6,482	7,093
Collections expense	303		644	919	1,118
Processing expenses	15,151		11,680	28,607	22,822
Marketing expenses	2,101		2,047	4,081	3,554
Federal deposit insurance premiums	1,353		1,618	2,660	1,618
Professional services	4,231		2,825	8,813	5,637
Amortization of intangible assets	1,433		1,760	3,027	3,411
Real estate owned expense	85		89	160	184
Merger, asset disposition and restructuring expense	632		9,679	641	12,137
Other expenses	1,422		7,866	4,776	12,739
Total noninterest expense	86,332		89,163	172,523	167,774
Income/(loss) before income taxes	64,105		(7,339)	115,945	1,617
Federal and state income taxes expense/(benefit)	15,138		(1,139)	26,741	(122)
Net income/(loss)	$	48,967	(6,200)	89,204	1,739
Basic earnings/(loss) per share	$	0.38	(0.05)	0.70	0.02
Diluted earnings/(loss) per share	$	0.38	(0.05)	0.70	0.02

See accompanying notes to unaudited Consolidated Financial Statements.

2

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

(in thousands)

	Quarter ended June 30,			Six months ended June 30,
	2021		2020	2021	2020
Net income	$	48,967	(6,200)	89,204	1,739
Other comprehensive income net of tax:
Net unrealized holding gains/(losses) on marketable securities:
Unrealized holding gains/(losses), net of tax of ($1,245), ($1,902), $4,736, and ($5,179) respectively	4,322		4,790	(13,099)	12,947
Reclassification adjustment for (gains)/losses included in net income, net of tax of $43, $13, $65, and ($1) respectively	(136)		(35)	(211)	2
Net unrealized holding gains/(losses) on marketable securities	4,186		4,755	(13,310)	12,949
Change in fair value of interest rate swaps, net of tax of $0, $47, $0, and $209 respectively	—		(537)	—	(946)
Defined benefit plan:
Actuarial reclassification adjustments for prior period service costs and actuarial losses included in net income, net of tax of ($128), ($99), ($258), and ($198) respectively	334		249	667	498
Other comprehensive income/(loss)	4,520		4,467	(12,643)	12,501
Total comprehensive income	$	53,487	(1,733)	76,561	14,240

See accompanying notes to unaudited Consolidated Financial Statements.

3

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited)

(in thousands, expect share data) 

				Additional paid-in capital	Retained earnings	Accumulated other comprehensive income/(loss)	Total shareholders’ equity
	Common stock
Quarter ended June 30, 2021	Shares	Amount
Beginning balance at March 31, 2021	127,222,648	$	1,272	1,018,822	571,612	(50,712)	1,540,994
Comprehensive income:
Net income	—	—		—	48,967	—	48,967
Other comprehensive loss, net of tax of ($1,331)	—	—		—	—	4,520	4,520
Total comprehensive income	—	—		—	48,967	4,520	53,487
Exercise of stock options	418,916	4		5,102	—	—	5,106
Stock-based compensation expense	320,755	3		1,715	—	—	1,718
Share repurchases	(34,460)	—		(465)	—	—	(465)
Stock-based compensation forfeited	(19,974)	—		—	—	—	—
Dividends paid ($0.20 per share)	—	—		—	(25,479)	—	(25,479)
Ending balance at June 30, 2021	127,907,885	$	1,279	1,025,174	595,100	(46,192)	1,575,361

				Additional paid-in capital	Retained earnings	Accumulated other comprehensive income/(loss)	Total shareholders’ equity
	Common stock
Quarter ended June 30, 2020	Shares	Amount
Beginning balance at March 31, 2020	106,933,483	$	1,069	808,250	561,380	(28,907)	1,341,792
Comprehensive income:
Net loss	—	—		—	(6,200)	—	(6,200)
Other comprehensive income, net of tax of ($1,992)	—	—		—	—	4,467	4,467
Total comprehensive income/(loss)	—	—		—	(6,200)	4,467	(1,733)
Acquisition of MutualBank	20,658,957	206		213,200	—	—	213,406
Stock-based compensation expense	282,691	3		1,528	—	—	1,531
Stock-based compensation forfeited	(36,731)	—		—	—	—	—
Other	—	—		105	—	—	105
Dividends paid ($0.19 per share)	—	—		—	(24,252)	—	(24,252)
Ending balance at June 30, 2020	127,838,400	$	1,278	1,023,083	530,928	(24,440)	1,530,849

See accompanying notes to unaudited Consolidated Financial Statements.

4

NORTHWEST BANCSHARES, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY (Unaudited)

(in thousands, expect share data)

				Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Total shareholders’ equity
	Common stock
Six months ended June 30, 2021	Shares	Amount
Beginning balance at December 31, 2020	127,019,452	$	1,270	1,015,502	555,480	(33,549)	1,538,703
Comprehensive income:
Net income	—	—		—	89,204	—	89,204
Other comprehensive loss, net of tax of $4,543	—	—		—	—	(12,643)	(12,643)
Total comprehensive income/(loss)	—	—		—	89,204	(12,643)	76,561
Exercise of stock options	986,345	10		12,023	—	—	12,033
Stock-based compensation expense	322,685	3		2,676	—	—	2,679
Stock-based compensation forfeited	(32,585)	—		—	—	—	—
Share repurchases	(388,012)	(4)		(5,027)	—	—	(5,031)
Dividends paid ($0.39 per share)	—	—		—	(49,584)	—	(49,584)
Ending balance at June 30, 2021	127,907,885	$	1,279	1,025,174	595,100	(46,192)	1,575,361

				Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Total shareholders’ equity
	Common stock
Six months ended June 30, 2020	Shares	Amount
Beginning balance at December 31, 2019	106,859,088	$	1,069	805,750	583,407	(36,941)	1,353,285
Comprehensive income:
Net income	—	—		—	1,739	—	1,739
Other comprehensive income, net of tax of ($5,209)	—	—		—	—	12,501	12,501
Total comprehensive income	—	—		—	1,739	12,501	14,240
Acquisition of MutualFirst Financial, Inc.	20,658,957	206		213,200	—	—	213,406
Reclassification due to adoption of ASU No. 2016-13	—	—		—	(9,649)	—	(9,649)
Exercise of stock options	87,305	1		1,005	—	—	1,006
Stock-based compensation expense	282,691	3		3,023	—	—	3,026
Stock-based compensation forfeited	(49,641)	(1)		—	—	—	(1)
Other	—	—		105	—	—	105
Dividends paid ($0.38 per share)	—	—		—	(44,569)	—	(44,569)
Ending balance at June 30, 2020	127,838,400	$	1,278	1,023,083	530,928	(24,440)	1,530,849

See accompanying notes to unaudited Consolidated Financial Statements.

5

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(in thousands)

	Six months ended June 30,
	2021		2020
Operating activities:
Net income	$	89,204	1,739
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(5,620)		79,387
Net gain on sale of assets	(570)		(164)
Mortgage banking activity	(13,818)		(6,076)
Gain on sale of insurance business	(25,327)		—
Net depreciation, amortization and accretion	3,058		4,046
(Increase)/decrease in other assets	26,603		(46,883)
Increase/(decrease) in other liabilities	(18,261)		73,401
Net amortization on marketable securities	4,040		977
Noncash compensation expense related to stock benefit plans	2,679		3,026
Noncash write-down of real estate owned	128		220
Deferred income tax (benefit)/expense	900		(3,470)
Origination of loans held-for-sale	(420,530)		(183,040)
Proceeds from sale of loans held-for-sale	462,522		164,202
Net cash provided by operating activities	105,008		87,365
Investing activities:
Purchase of marketable securities held-to-maturity	(479,165)		—
Purchase of marketable securities available-for-sale	(509,499)		(404,310)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	18,261		1,615
Proceeds from maturities and principal reductions of marketable securities available-for-sale	225,823		169,602
Proceeds from sale of marketable securities available-for-sale	61,748		—
Proceeds from bank-owned life insurance	3,984		—
Loan originations	(2,056,750)		(2,466,315)
Proceeds from loan maturities and principal reductions	2,292,701		1,896,118
Proceeds from sale of loans held for investment	—		50,791
Net proceeds/(redemptions) of FHLB stock	(1,539)		2,313
Proceeds from sale of real estate owned	1,431		594
Proceeds from sale of real estate owned for investment, net	153		303
Purchase of premises and equipment	(1,005)		(7,815)
Proceeds from the sale of insurance business	28,238		—
Acquisitions, net of cash received	—		261,712
Net cash used in investing activities	(415,619)		(495,392)

6

NORTHWEST BANCSHARES, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (continued)

(in thousands) 

	Six months ended June 30,
	2021		2020
Financing activities:
Net increase in deposits	$	491,475	1,253,895
Repayments of long-term borrowings	(22,000)		(31,200)
Net decrease in short-term borrowings	(3,785)		(6,738)
Increase in advances by borrowers for taxes and insurance	8,378		12,014
Cash dividends paid on common stock	(49,584)		(44,569)
Purchase of common stock for retirement	(5,031)		—
Proceeds from stock options exercised	12,033		1,006
Net cash provided by financing activities	431,486		1,184,408
Net increase in cash and cash equivalents	$	120,875	776,381
Cash and cash equivalents at beginning of period	$	736,277	60,846
Net increase in cash and cash equivalents	120,875		776,381
Cash and cash equivalents at end of period	$	857,152	837,227
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $10,295 and $19,039, respectively)	$	14,625	23,373
Income taxes	20,601		2,306
Business acquisitions:
Fair value of assets acquired	$	—	2,085,970
Northwest Bancshares, Inc. common stock issued	—		(213,406)
Net cash paid	—		—
Liabilities assumed	$	—	1,872,564
Non-cash activities:
Loan foreclosures and repossessions	$	2,831	2,240
Sale of real estate owned financed by the Company	54		—

See accompanying notes to unaudited Consolidated Financial Statements.

7

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

(1)    Basis of Presentation and Informational Disclosures

Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a bank holding company regulated by the Board of Governors of the Federal Reserve System ("FRB"). The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”).  Northwest is regulated by the Federal Deposit Insurance Corporation ("FDIC") and the Pennsylvania Department of Banking. Northwest operates 170 community-banking offices throughout Pennsylvania, Western New York, Eastern Ohio, and Indiana.

The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, The Bert Company (doing business as Northwest Insurance Services, which was sold April 30, 2021) and MutualFirst Investment Company, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information or footnotes required for complete annual financial statements.  In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included.  The Consolidated Financial Statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 updated, as required, for any new pronouncements or changes.

    Certain items previously reported have been reclassified to conform to the current year's reporting format.

    The results of operations for the quarter ended June 30, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021, or any other period.

Stock-Based Compensation

On May 25, 2021, the Company awarded employees 621,972 stock options and directors 72,000 stock options with an exercise price of $13.68 and grant date fair value of $0.64 per stock option, and the Company awarded employees 293,755 restricted common shares and directors 27,000 restricted common shares with a grant date fair value of $13.68. Awarded stock options and common shares vest over a five-year period with the first vesting occurring on the grant date. Stock-based compensation expense of $1.7 million and $1.5 million for the quarters ended June 30, 2021 and 2020, respectively, was recognized in compensation expense relating to our stock benefit plans. At June 30, 2021, there was compensation expense of $11.5 million to be recognized for awarded but unvested stock options and $2.1 million for unvested restricted common shares.

 Income Taxes-Uncertain Tax Positions

Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return.  A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits.  The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At June 30, 2021, we had $336,000 of liability for unrecognized tax benefits.

We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income.  We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2020, 2019, 2018, and 2017.

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board ("FASB") issued the accounting standard update ("ASU") 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20) - Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.” This guidance removes and adds disclosure requirements for defined benefit pension or other post-retirement plans. On January 1, 2021, the Company adopted ASU 2018-14 on a retrospective basis for disclosures impacted. The adoption of this standard did not have a material effect on our results of operations or financial position. Refer to Note 8, "Pension and Other Post-Retirement Benefits".

8

    In December 2019, the FASB issued ASU 2019-12, "Income Taxes - Simplifying the Accounting for Income Taxes." This guidance simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. On January 1, 2021, the Company adopted ASU 2019-12 on a prospective basis. The adoption of this standard did not have a material effect on our results of operations or financial position.

(2)    Marketable Securities

The following table shows the portfolio of marketable securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S government and agencies:
Due after ten years	$	59,435	125	(306)	59,254
Debt issued by government-sponsored enterprises:
Due in less than one year	25,208		13	—	25,221
Due in five years through ten years	47,663		94	(1,120)	46,637
Municipal securities:
Due in less than one year	1,130		3	(1)	1,132
Due in one year through five years	2,234		60	—	2,294
Due in five years through ten years	20,017		556	(89)	20,484
Due after ten years	87,956		3,265	(102)	91,119
Residential mortgage-backed securities:
Fixed rate pass-through	303,717		3,587	(1,134)	306,170
Variable rate pass-through	12,968		387	(15)	13,340
Fixed rate agency CMOs	988,012		6,582	(6,981)	987,613
Variable rate agency CMOs	45,473		310	(23)	45,760
Total residential mortgage-backed securities	1,350,170		10,866	(8,153)	1,352,883
Total marketable securities available-for-sale	$	1,593,813	14,982	(9,771)	1,599,024

9

The following table shows the portfolio of marketable securities available-for-sale at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S. government and agencies:
Due after ten years	$	40,761	211	(55)	40,917
Debt issued by government-sponsored enterprises:
Due in less than one year	24,976		159	—	25,135
Due in one year through five years	238		3	—	241
Due in five years through ten years	68,973		238	(80)	69,131
Municipal securities:
Due in less than one year	4,008		14	—	4,022
Due in one year through five years	2,803		63	(2)	2,864
Due in five years through ten years	16,045		429	(5)	16,469
Due after ten years	89,778		3,752	(72)	93,458
Residential mortgage-backed securities:
Fixed rate pass-through	339,406		7,125	(86)	346,445
Variable rate pass-through	14,778		431	(20)	15,189
Fixed rate agency CMOs	723,586		11,758	(1,093)	734,251
Variable rate agency CMOs	50,333		519	(33)	50,819
Total residential mortgage-backed securities	1,128,103		19,833	(1,232)	1,146,704
Total marketable securities available-for-sale	$	1,375,685	24,702	(1,446)	1,398,941

The following table shows the portfolio of marketable securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in one year through five years	$	16,478	—	(18)	16,460
Due in five years through ten years	107,972		—	(3,578)	104,394
Residential mortgage-backed securities:
Fixed rate pass-through	202,269		591	(658)	202,202
Variable rate pass-through	761		26	—	787
Fixed rate agency CMOs	311,341		576	(3,762)	308,155
Variable rate agency CMOs	603		19	—	622
Total residential mortgage-backed securities	514,974		1,212	(4,420)	511,766
Total marketable securities held-to-maturity	$	639,424	1,212	(8,016)	632,620

10

The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in five years through ten years	$	67,990	12	(123)	67,879
Residential mortgage-backed securities:
Fixed rate pass-through	1,723		131	—	1,854
Variable rate pass-through	919		30	—	949
Fixed rate agency CMOs	107,651		716	(2)	108,365
Variable rate agency CMOs	604		15	—	619
Total residential mortgage-backed securities	110,897		892	(2)	111,787
Total marketable securities held-to-maturity	$	178,887	904	(125)	179,666

The following table shows the contractual maturity of our residential mortgage-backed securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in less than one year	$	1,441	1,444
Due in one year through five years	38,662		39,130
Due after five years through ten years	253,062		255,356
Due after ten years	1,057,005		1,056,953
Total residential mortgage-backed securities	$	1,350,170	1,352,883

The following table shows the contractual maturity of our residential mortgage-backed securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in one year through five years	$	985	1,051
Due after five years through ten years	221,656		221,054
Due after ten years	292,333		289,661
Total residential mortgage-backed securities	$	514,974	511,766

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at June 30, 2021 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	194,872	(4,955)	1,619	(67)	196,491	(5,022)
Municipal securities	11,013		(191)	121	(1)	11,134	(192)
Residential mortgage-backed securities - agency	1,099,202		(12,528)	8,791	(45)	1,107,993	(12,573)
Total	$	1,305,087	(17,674)	10,531	(113)	1,315,618	(17,787)

11

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2020 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	67,809	(179)	1,923	(80)	69,732	(259)
Municipal securities	4,257		(79)	—	—	4,257	(79)
Residential mortgage-backed securities - agency	300,767		(1,202)	5,533	(31)	306,300	(1,233)
Total	$	372,833	(1,460)	7,456	(111)	380,289	(1,571)

The Company does not believe that the available-for-sale debt securities that were in an unrealized loss position as of June 30, 2021, which were comprised of 158 individual securities, represents a credit loss impairment. All of these securities were issued by U.S. government agencies or U.S. government-sponsored enterprises. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The unrealized losses were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities. The Company does not have the intent to sell these investment securities and it is likely that we will not be required to sell these securities before their anticipated recovery, which may be at maturity.

All of the Company's held-to-maturity debt securities are issued by U.S. government agencies or U.S. government-sponsored enterprises. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Therefore, the Company did not record an allowance for credit losses for these securities as of June 30, 2021.

The following table presents the credit quality of our held-to-maturity securities, based on the latest information available as of June 30, 2021. The credit ratings are sourced from nationally recognized rating agencies, which include Moody's and S&P, or when credit ratings cannot be sourced from the agencies, they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of June 30, 2021.

	AA+		Total
Held-to-maturity securities:
Debt issued by government-sponsored enterprises	$	124,450	124,450
Residential mortgage-backed securities	514,974		514,974
Total marketable securities held-to-maturity	$	639,424	639,424

12

(3)    Loans Receivable

    The following table shows a summary of our loans receivable at amortized cost basis at June 30, 2021 and December 31, 2020 (in thousands): 

	June 30, 2021				December 31, 2020
	Originated		Acquired	Total	Originated	Acquired	Total
Personal Banking:
Residential mortgage loans (1)	$	2,701,046	253,505	2,954,551	2,753,593	314,528	3,068,121
Home equity loans	1,127,884		248,344	1,376,228	1,175,703	292,033	1,467,736
Vehicle loans	1,266,181		125,339	1,391,520	995,040	157,633	1,152,673
Consumer loans	299,163		54,548	353,711	288,066	67,254	355,320
Total Personal Banking	5,394,274		681,736	6,076,010	5,212,402	831,448	6,043,850
Commercial Banking:
Commercial real estate loans	2,258,220		524,831	2,783,051	2,223,108	624,873	2,847,981
Commercial real estate loans - owner occupied	327,039		105,099	432,138	344,016	153,892	497,908
Commercial loans	899,035		119,746	1,018,781	1,019,482	171,628	1,191,110
Total Commercial Banking	3,484,294		749,676	4,233,970	3,586,606	950,393	4,536,999
Total loans receivable, gross	8,878,568		1,431,412	10,309,980	8,799,008	1,781,841	10,580,849
Allowance for credit losses	(90,375)		(26,955)	(117,330)	(102,874)	(31,553)	(134,427)
Total loans receivable, net (2)	$	8,788,193	1,404,457	10,192,650	8,696,134	1,750,288	10,446,422

(1)     Includes fair value of $29.1 million and $58.8 million of loans held-for-sale at June 30, 2021 and December 31, 2020, respectively.

(2)    Includes $48.7 million and $40.9 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at June 30, 2021 and December 31, 2020, respectively.

13

    The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of March 31, 2021
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,922	(770)	234	5,861
Home equity loans	7,239		2,253	(379)	124	5,241
Vehicle loans	12,888		(1,196)	(1,598)	794	14,888
Consumer loans	2,801		691	(803)	350	2,563
Total Personal Banking	30,175		3,670	(3,550)	1,502	28,553
Commercial Banking:
Commercial real estate loans	64,580		(2,925)	(3,074)	373	70,206
Commercial real estate loans - owner occupied	4,729		(1,138)	(890)	4	6,753
Commercial loans	17,846		393	(1,161)	129	18,485
Total Commercial Banking	87,155		(3,670)	(5,125)	506	95,444
Total	$	117,330	—	(8,675)	2,008	123,997
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		8	—	—	34
Total Personal Banking	44		8	—	—	36
Commercial Banking:
Commercial real estate loans	1,932		(183)	—	—	2,115
Commercial real estate loans - owner occupied	181		(207)	—	—	388
Commercial loans	1,232		(848)	—	—	2,080
Total Commercial Banking	3,345		(1,238)	—	—	4,583
Total off-balance sheet exposure	$	3,389	(1,230)	—	—	4,619

14

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2020, and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Balance as of March 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	(30)	(38)	8	1,095	10,673
Home equity loans	9,363		(542)	(173)	76	216	9,786
Vehicle loans	13,835		2,949	(1,763)	420	235	11,994
Consumer loans	2,506		(1,789)	(1,428)	400	157	5,166
Total Personal Banking	37,412		588	(3,402)	904	1,703	37,619
Commercial Banking:
Commercial real estate loans	72,833		37,969	(690)	454	5,720	29,380
Commercial real estate loans - owner occupied	14,827		5,482	—	8	963	8,374
Commercial loans	15,514		7,711	(10,349)	169	459	17,524
Total Commercial Banking	103,174		51,162	(11,039)	631	7,142	55,278
Total	$	140,586	51,750	(14,441)	1,535	8,845	92,897
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	4	—	—	—	34
Total Personal Banking	38		4	—	—	—	34
Commercial Banking:
Commercial real estate loans	5,135		1,841	—	—	—	3,294
Commercial real estate loans - owner occupied	626		531	—	—	—	95
Commercial loans	4,384		3,103	—	—	—	1,281
Total Commercial Banking	10,145		5,475	—	—	—	4,670
Total off-balance sheet exposure	$	10,183	5,479	—	—	—	4,704

15

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of December 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,330	(1,625)	276	7,266
Home equity loans	7,239		1,601	(607)	253	5,992
Vehicle loans	12,888		(423)	(2,905)	1,391	14,825
Consumer loans	2,801		1,342	(2,099)	687	2,871
Total Personal Banking	30,175		3,850	(7,236)	2,607	30,954
Commercial Banking:
Commercial real estate loans	64,580		(7,756)	(7,700)	655	79,381
Commercial real estate loans - owner occupied	4,729		(4,904)	(890)	5	10,518
Commercial loans	17,846		3,190	(1,215)	2,297	13,574
Total Commercial Banking	87,155		(9,470)	(9,805)	2,957	103,473
Total	$	117,330	(5,620)	(17,041)	5,564	134,427
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		7	—	—	35
Total Personal Banking	44		7	—	—	37
Commercial Banking:
Commercial real estate loans	1,932		(1,517)	—	—	3,449
Commercial real estate loans - owner occupied	181		(145)	—	—	326
Commercial loans	1,232		(1,319)	—	—	2,551
Total Commercial Banking	3,345		(2,981)	—	—	6,326
Total off-balance sheet exposure	$	3,389	(2,974)	—	—	6,363

16

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Cumulative effect of ASU 2016-13*	Balance as of December 31, 2019
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	864	(381)	115	1,095	7,441	2,574
Home equity loans	9,363		353	(462)	281	216	5,786	3,189
Vehicle loans	13,835		8,308	(3,606)	764	235	842	7,292
Consumer loans	2,506		1,729	(3,073)	816	157	(2,424)	5,301
Total Personal Banking	37,412		11,254	(7,522)	1,976	1,703	11,645	18,356
Commercial Banking:
Commercial real estate loans	72,833		49,238	(1,000)	744	5,720	2,288	15,843
Commercial real estate loans - owner occupied	14,827		6,847	(21)	15	963	1,278	5,745
Commercial loans	15,514		12,048	(11,164)	593	459	(4,419)	17,997
Total Commercial Banking	103,174		68,133	(12,185)	1,352	7,142	(853)	39,585
Total	$140,586		79,387	(19,707)	3,328	8,845	10,792	57,941
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	8	—	—	—	(293)	323
Consumer loans	—		—	—	—	—	(402)	402
Total Personal Banking	38		8	—	—	—	(695)	725
Commercial Banking:
Commercial real estate loans	5,135		3,124	—	—	—	1,934	77
Commercial real estate loans - owner occupied	626		535	—	—	—	88	3
Commercial loans	4,384		3,292	—	—	—	923	169
Total Commercial Banking	10,145		6,951	—	—	—	2,945	249
Total off-balance sheet exposure	$	10,183	6,959	—	—	—	2,250	974

* Includes the impact of the initial allowance on PCD loans of $517,000.    

During the six months ended June 30, 2021, there were no loans sold that were classified as held for investment. During the six months ended June 30, 2020, we sold $50 million of loans that were classified as held for investment, for a gain of $1.3 million, which is reported in gain on sale of loans on the Consolidated Statements of Income. No loans were sold during the three months ended June 30, 2021 or June 30, 2020.

17

    The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at June 30, 2021 (in thousands):

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	2,954,551	7,247	10,471	—	7,347	944	—
Home equity loans	1,376,228		7,239	6,965	—	1,968	652	—
Vehicle loans	1,391,520		12,888	2,579	—	—	—	—
Consumer loans	353,711		2,801	477	302	—	—	—
Total Personal Banking	6,076,010		30,175	20,492	302	9,315	1,596	—
Commercial Banking:
Commercial real estate loans	2,783,051		64,580	162,301	—	14,588	890	500
Commercial real estate loans - owner occupied	432,138		4,729	1,870	—	452	162	—
Commercial loans	1,018,781		17,846	22,098	—	3,076	315	765
Total Commercial Banking	4,233,970		87,155	186,269	—	18,116	1,367	1,265
Total	$	10,309,980	117,330	206,761	302	27,431	2,963	1,265

(1)Includes $9.0 million of nonaccrual TDRs.

    The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2020 (in thousands): 

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	3,068,121	7,266	15,924	—	8,431	560	—
Home equity loans	1,467,736		5,992	9,123	—	2,058	381	26
Vehicle loans	1,152,673		14,825	5,533	1	—	—	—
Consumer loans	355,320		2,871	1,031	584	1	—	—
Total Personal Banking	6,043,850		30,954	31,611	585	10,490	941	26
Commercial Banking:
Commercial real estate loans	2,847,981		79,381	44,092	—	18,430	787	471
Commercial real estate loans - owner occupied	497,908		10,518	3,642	—	761	123	—
Commercial loans	1,191,110		13,574	23,487	—	2,454	165	362
Total Commercial Banking	4,536,999		103,473	71,221	—	21,645	1,075	833
Total	$	10,580,849	134,427	102,832	585	32,135	2,016	859

(1)Includes $10.7 million of nonaccrual TDRs.

18

We present the amortized cost of our loans on nonaccrual status including such loans with no allowance. The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the quarter ended June 30, 2021 (in thousands): 

	Nonaccrual loans at January 1, 2021		Nonaccrual loans at June 30, 2021 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	15,924	10,471	—	—
Home equity loans	9,123		6,773	192	—
Vehicle loans	5,533		2,576	3	—
Consumer loans	1,031		477	—	302
Total Personal Banking	31,611		20,297	195	302
Commercial Banking:
Commercial real estate loans	44,092		101,472	60,829	—
Commercial real estate loans - owner occupied	3,642		1,870	—	—
Commercial loans	23,487		17,323	4,775	—
Total Commercial Banking	71,221		120,665	65,604	—
Total	$	102,832	140,962	65,799	302

During the three and six months ended June 30, 2021, we recognized $247,000 and $526,000 of interest income on nonaccrual and troubled debt restructuring loans.

The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the year ended December 31, 2020 (in thousands): 

	Nonaccrual loans at January 1, 2020		Nonaccrual loans at December 31, 2020 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	14,476	15,923	—	—
Home equity loans	6,745		8,872	252	—
Vehicle loans	3,147		5,377	156	1
Consumer loans	1,079		1,030	1	584
Total Personal Banking	25,447		31,202	409	585
Commercial Banking:
Commercial real estate loans	18,832		27,079	17,013	—
Commercial real estate loans - owner occupied	16,032		3,642	—	—
Commercial loans	8,559		18,069	5,418	—
Total Commercial Banking	43,423		48,790	22,431	—
Total	$	68,870	79,992	22,840	585

During the year ended December 31, 2020, we recognized $842,000 of interest income on nonaccrual and troubled debt restructuring loans.

19

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of June 30, 2021 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	586	—	—	586
Home equity loans	99		—	—	99
Total Personal Banking	685		—	—	685
Commercial Banking:
Commercial real estate loans	150,426		1,852	3,432	155,710
Commercial loans	2,851		10,069	4,403	17,323
Total Commercial Banking	153,277		11,921	7,835	173,033
Total	$	153,962	11,921	7,835	173,718

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2020 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	1,269	—	—	1,269
Home equity loans	99		—	—	99
Total Personal Banking	1,368		—	—	1,368
Commercial Banking:
Commercial real estate loans	79,392		1,997	1,703	83,092
Commercial loans	3,313		197	11,069	14,579
Total Commercial Banking	82,705		2,194	12,772	97,671
Total	$	84,073	2,194	12,772	99,039

20

    Our loan portfolios include loans that have been modified in a TDR, where concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include: extending the note’s maturity date, permitting interest only payments, reducing the interest rate to a rate lower than current market rates for new debt with similar risk, reducing the principal payment, principal forbearance or other actions.  These concessions are applicable to all loan segments and classes. Certain TDRs are classified as nonperforming at the time of restructuring and may be returned to performing status after considering the borrower’s sustained repayment performance for a period of at least six months.

When we modify loans in a TDR, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, the loan’s observable market price or the current fair value of the collateral, less selling costs, for collateral dependent loans.  If we determine that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premiums or discounts), impairment is recognized through an allowance estimate or a charge-off to the allowance.  In periods subsequent to modification, we evaluate all TDRs, including those that have payment defaults, for possible impairment in accordance with ASC 310-10. As a result, loans modified in a TDR may have the financial effect of increasing the specific allowance associated with the loan.

Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default.  If loans modified in a TDR subsequently default, we evaluate the loan for possible further impairment. The allowance may be increased, adjustments may be made in the allocation of the allowance, partial charge-offs may be taken to further write-down the carrying value of the loan, or the loan may be charged-off completely.

In March 2020 and August 2020, joint statements were issued by federal and state regulatory agencies, after consultation with the FASB, to clarify that short-term loan modifications are not TDRs if made on a good-faith basis in response to COVID-19 to borrowers who were current prior to any relief. Under this guidance, six months is provided as an example of short-term, and current is defined as less than 30 days past due at the time the modification program is implemented. The guidance also provides that these modified loans generally will not be classified as nonaccrual during the term of the modification. For borrowers who are 30 days or more past due when enrolling in a loan modification program related to the COVID-19 pandemic, we evaluate the loan modifications under our existing TDR framework, and where such a loan modification would result in a concession to a borrower experiencing financial difficulty, the loan will be accounted for as a TDR and will generally not accrue interest. This TDR relief under the CARES Act was extended by the Consolidated Appropriations Act, 2021 ("CAA"), signed into law on December 27, 2020. Under the CAA, such relief will continue until the earlier of 60 days after the date the COVID-19 national emergency comes to an end or January 1, 2022. Certain loan modifications made during the year were done in accordance with Section 4013 of the CARES Act and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus. Accordingly, these loans and leases were not categorized as TDRs.

21

The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands):

	For the quarter ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	164	$	27,510	171	$	33,352
New TDRs	2	2,295		1	67
Re-modified TDRs	1	344		2	3,436
Net paydowns	—	(1,610)		—	(1,194)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		—	—
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	2	(302)		—	—
Commercial real estate loans - owner occupied	—	—		1	(25)
Commercial loans	1	(69)		2	(183)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

	For the six months ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	170	$	32,135	176	$	31,999
New TDRs	2	2,295		3	84
Re-modified TDRs	5	1,241		3	5,487
Net paydowns	—	(4,073)		—	(1,509)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		1	(10)
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		2	(330)
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	5	(2,686)		1	(26)
Commercial real estate loans - owner occupied	1	(47)		1	(25)
Commercial loans	3	(697)		5	(217)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

22

    The following table provides information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands):

	For the quarter ended June 30, 2021					For the six months ended June 30, 2021
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	1	$	121	116	10
Home equity loans	—	—		—	—	1	3		—	—
Total Personal Banking	—	—		—	—	2	124		116	10
Commercial Banking:
Commercial real estate loans	1	725		343	34	3	1,537		1,125	148
Commercial loans	2	2,396		2,295	—	2	2,396		2,295	—
Total Commercial Banking	3	3,121		2,638	34	5	3,933		3,420	148
Total	3	$	3,121	2,638	34	7	$	4,057	3,536	158

	For the quarter ended June 30, 2020					For the six months ended June 30, 2020
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	$	—	—	—
Home equity loans	1	67		67	12	2	86		84	15
Vehicle loans	—	—		—	—	—	—		—	—
Consumer loans	—	—		—	—	—	—		—	—
Total Personal Banking	1	67		67	12	2	86		84	15
Commercial Banking:
Commercial real estate loans	1	454		454	58	1	454		454	58
Commercial real estate loans - owner occupied	—	—		—	—	2	2,077		2,051	131
Commercial loans	1	2,500		2,982	—	1	2,500		2,982	—
Total Commercial Banking	2	2,954		3,436	58	4	5,031		5,487	189
Total	3	$	3,021	3,503	70	6	$	5,117	5,571	204

23

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	—	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	—	—		—	—	—	—
Commercial Banking:
Commercial real estate loans	1	—		—	343	—	343
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	3	—		—	2,638	—	2,638
Total	3	$	—	—	2,638	—	2,638

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	1	67		—	—	—	67
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	1	67		—	—	—	67
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	2	—		454	—	2,982	3,436
Total	3	$	67	454	—	2,982	3,503

24

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	1	$	116	—	—	—	116
Home equity loans	1	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	116		—	—	—	116
Commercial Banking:
Commercial real estate loans	3	—		—	1,052	73	1,125
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	5	—		—	3,347	73	3,420
Total	7	$	116	—	3,347	73	3,536

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	2	67		—	17	—	84
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	67		—	17	—	84
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	2	—		—	2,051	—	2,051
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	4	—		454	2,051	2,982	5,487
Total	6	$	67	454	2,068	2,982	5,571

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The following table provides information related to troubled debt restructurings modified within the previous twelve months

of June 30, 2021 that subsequently defaulted:

	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Consumer loans	—	—		—	—
Total Personal Banking	—	—		—	—
Commercial Banking:
Commercial real estate loans	1	454		454	50
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Total Commercial Banking	1	$	454	454	50
Total	1	$	454	454	50

No TDRs modified within the previous twelve months of June 30, 2020 subsequently defaulted.

The following table provides information related to the amortized cost basis of loan payment delinquencies at June 30, 2021 (in thousands):

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 Days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	606	4,051	10,007	14,664	2,939,887	2,954,551	—
Home equity loans	3,677		1,502	6,256	11,435	1,364,793	1,376,228	—
Vehicle loans	4,475		1,392	1,917	7,784	1,383,736	1,391,520	—
Consumer loans	1,096		596	726	2,418	351,293	353,711	302
Total Personal Banking	9,854		7,541	18,906	36,301	6,039,709	6,076,010	302
Commercial Banking:
Commercial real estate loans	2,857		1,335	22,702	26,894	2,756,157	2,783,051	—
Commercial real estate loans - owner occupied	—		—	862	862	431,276	432,138	—
Commercial loans	686		27	4,126	4,839	1,013,942	1,018,781	—
Total Commercial Banking	3,543		1,362	27,690	32,595	4,201,375	4,233,970	—
Total loans	$	13,397	8,903	46,596	68,896	10,241,084	10,309,980	302

26

The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2020 (in thousands): 

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	28,797	5,083	14,489	48,369	3,019,752	3,068,121	—
Home equity loans	4,763		1,656	8,441	14,860	1,452,876	1,467,736	—
Vehicle loans	7,707		1,776	4,599	14,082	1,138,592	1,152,674	1
Consumer loans	2,867		966	1,459	5,292	350,027	355,319	584
Total Personal Banking	44,134		9,481	28,988	82,603	5,961,247	6,043,850	585
Commercial Banking:
Commercial real estate loans	6,692		1,615	23,307	31,614	2,816,366	2,847,980	—
Commercial real estate loans - owner occupied	4,231		—	1,980	6,211	491,698	497,909	—
Commercial loans	6,405		864	7,325	14,594	1,176,516	1,191,110	—
Total Commercial Banking	17,328		2,479	32,612	52,419	4,484,580	4,536,999	—
Total originated loans	$	61,462	11,960	61,600	135,022	10,445,827	10,580,849	585

Credit Quality Indicators: For Commercial Banking loans we categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze loans individually by classifying the loans by credit risk. Credit relationships greater than or equal to $1.0 million classified as special mention or substandard are reviewed quarterly for deterioration or improvement to determine if the loan is appropriately classified. We use the following definitions for risk ratings other than pass:

Special Mention — Loans designated as special mention have specific, well-defined risk issues, which create a high level of uncertainty regarding the long-term viability of the business. Loans in this class are considered to have high-risk characteristics.  A special mention loan exhibits material negative financial trends due to company-specific or systemic conditions. If these potential weaknesses are not mitigated, they threaten the borrower’s capacity to meet its debt obligations.  Special mention loans still demonstrate sufficient financial flexibility to react to and positively address the root cause of the adverse financial trends without significant deviations from their current business strategy. Their potential weaknesses deserve our close attention and warrant enhanced monitoring.

Substandard — Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.

Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified as substandard. In addition, those weaknesses make collection or liquidation in full highly questionable and improbable. A loan classified as doubtful exhibits discernible loss potential, but a complete loss seems very unlikely. The possibility of a loss on a doubtful loan is high, but because of certain important and reasonably specific pending factors that may strengthen the loan, its classification as an estimated loss is deferred until a more exact status can be determined.

Loss — Loans classified as loss are considered uncollectible and of such value that the continuance as a loan is not warranted. A loss classification does not mean that the loan has no recovery or salvage value; instead, it means that it is not practical or desirable to defer writing off all or a portion of a basically worthless loan even though partial recovery may be possible in the future.

For Personal Banking loans a pass risk rating is maintained until they are greater than 90 days past due, and risk rating reclassification is based primarily on past due status of the loan. The risk rating categories can generally be described by the following groupings:

Pass — Loans classified as pass are homogeneous loans that are less than 90 days past due from the required payment date at month-end.

27

Substandard — Loans classified as substandard are homogeneous loans that are greater than 90 days past due from the required payment date at month-end, loans classified as TDRs, PCD loans, or homogenous retail loans that are greater than 180 days past due from the required payment date at month-end that has been written down to the value of underlying collateral, less costs to sell.

Doubtful — Loans classified as doubtful are homogeneous loans that are greater than 180 days past due from the required payment date at month-end and not written down to the value of underlying collateral. These loans are generally charged-off in the month in which the 180 day period elapses.

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The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of June 30, 2021 (in thousands): 

	YTD June 30, 2021		2020	2019	2018	2017	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	300,509	641,609	348,382	185,748	204,651	1,256,519	—	—	2,937,418
Substandard	—		495	—	1,343	1,059	14,236	—	—	17,133
Total residential mortgage loans	300,509		642,104	348,382	187,091	205,710	1,270,755	—	—	2,954,551
Home equity loans
Pass	76,844		242,949	162,871	77,955	72,820	251,135	440,990	42,201	1,367,765
Substandard	—		66	245	200	424	4,656	1,800	1,072	8,463
Total home equity loans	76,844		243,015	163,116	78,155	73,244	255,791	442,790	43,273	1,376,228
Vehicle loans
Pass	494,650		369,808	272,201	163,243	49,891	39,147	—	—	1,388,940
Substandard	12		208	790	677	459	434	—	—	2,580
Total vehicle loans	494,662		370,016	272,991	163,920	50,350	39,581	—	—	1,391,520
Consumer loans
Pass	68,379		103,618	62,378	26,667	12,898	15,131	62,071	1,790	352,932
Substandard	129		89	125	39	17	34	318	28	779
Total consumer loans	68,508		103,707	62,503	26,706	12,915	15,165	62,389	1,818	353,711
Total Personal Banking	940,523		1,358,842	846,992	455,872	342,219	1,581,292	505,179	45,091	6,076,010
Business Banking:
Commercial real estate loans
Pass	132,129		455,283	445,635	293,714	249,646	778,071	29,786	16,779	2,401,043
Special Mention	599		1,333	27,316	2,604	6,901	21,311	669	—	60,733
Substandard	—		33,432	21,064	64,704	59,893	134,247	593	7,342	321,275
Total commercial real estate loans	132,728		490,048	494,015	361,022	316,440	933,629	31,048	24,121	2,783,051
Commercial real estate loans - owner occupied
Pass	20,891		30,499	58,526	80,173	59,144	126,007	1,849	3,602	380,691
Special Mention	—		—	2,719	1,175	4,152	3,453	935	—	12,434
Substandard	—		—	2,832	1,456	11,743	22,443	368	171	39,013
Total commercial real estate loans - owner occupied	20,891		30,499	64,077	82,804	75,039	151,903	3,152	3,773	432,138
Commercial loans
Pass	267,471		163,309	87,765	38,255	41,393	101,885	229,252	14,335	943,665
Special Mention	587		5,279	837	1,018	190	708	2,647	—	11,266
Substandard	234		7,089	7,236	6,470	5,191	3,548	16,487	17,595	63,850
Total commercial loans	268,292		175,677	95,838	45,743	46,774	106,141	248,386	31,930	1,018,781
Total Business Banking	421,911		696,224	653,930	489,569	438,253	1,191,673	282,586	59,824	4,233,970
Total loans	$	1,362,434	2,055,066	1,500,922	945,441	780,472	2,772,965	787,765	104,915	10,309,980

    For the six months ended June 30, 2021, $17.8 million of revolving loans were converted to term loans.

29

The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of December 31, 2020 (in thousands): 

	YTD December 31, 2020		2019	2018	2017	2016	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	641,963	418,057	229,477	247,426	215,893	1,289,728	—	—	3,042,544
Substandard	—		68	1,293	1,674	1,091	21,451	—	—	25,577
Total residential mortgage loans	641,963		418,125	230,770	249,100	216,984	1,311,179	—	—	3,068,121
Home equity loans
Pass	273,076		193,439	94,757	87,717	81,212	219,061	465,453	40,759	1,455,474
Substandard	—		210	318	281	876	5,158	3,509	1,910	12,262
Total home equity loans	273,076		193,649	95,075	87,998	82,088	224,219	468,962	42,669	1,467,736
Vehicle loans
Pass	448,746		352,661	218,372	70,122	31,197	24,791	—	—	1,145,889
Substandard	343		1,958	2,087	1,210	667	519	—	—	6,784
Total vehicle loans	449,089		354,619	220,459	71,332	31,864	25,310	—	—	1,152,673
Consumer loans
Pass	128,809		83,419	35,183	17,439	7,848	11,757	66,965	1,695	353,115
Substandard	133		399	139	192	36	619	686	1	2,205
Total consumer loans	128,942		83,818	35,322	17,631	7,884	12,376	67,651	1,696	355,320
Total Personal Banking	1,493,070		1,050,211	581,626	426,061	338,820	1,573,084	536,613	44,365	6,043,850
Business Banking:
Commercial real estate loans
Pass	417,390		473,115	316,045	264,702	195,168	709,459	36,980	29,755	2,442,614
Special Mention	584		3,381	20,180	24,675	15,424	15,817	597	3,048	83,706
Substandard	7,426		4,007	57,694	56,991	24,056	140,147	2,240	29,100	321,661
Total commercial real estate loans	425,400		480,503	393,919	346,368	234,648	865,423	39,817	61,903	2,847,981
Commercial real estate loans - owner occupied
Pass	24,895		67,162	87,497	71,626	46,760	100,081	4,422	7,648	410,091
Special Mention	—		4,371	4,514	3,643	4,276	3,689	3,822	—	24,315
Substandard	—		21,627	1,903	12,898	4,013	21,777	874	410	63,502
Total commercial real estate loans - owner occupied	24,895		93,160	93,914	88,167	55,049	125,547	9,118	8,058	497,908
Commercial loans
Pass	479,436		99,877	50,915	51,858	58,597	49,178	286,467	16,170	1,092,498
Special Mention	5,828		2,751	5,579	4,588	162	190	16,512	5,668	41,278
Substandard	1,660		3,343	2,932	2,016	2,266	3,003	27,988	14,126	57,334
Total commercial loans	486,924		105,971	59,426	58,462	61,025	52,371	330,967	35,964	1,191,110
Total Business Banking	937,219		679,634	547,259	492,997	350,722	1,043,341	379,902	105,925	4,536,999
Total loans	$	2,430,289	1,729,845	1,128,885	919,058	689,542	2,616,425	916,515	150,290	10,580,849

    For the year ended December 31, 2020, $23.1 million of revolving loans were converted to term loans.

30

(4)    Goodwill and Other Intangible Assets

The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands):

	June 30, 2021		December 31, 2020
Amortizable intangible assets:
Core deposit intangibles - gross	$	74,899	71,182
Acquisitions	—		3,717
Less: accumulated amortization	(59,680)		(56,896)
Core deposit intangibles - net	$	15,219	18,003
Customer and Contract intangible assets - gross	$	12,775	12,775
Customer list intangible assets disposed of due to sale of insurance business	(1,591)		—
Less: accumulated amortization	(11,041)		(10,842)
Customer and Contract intangible assets - net	143		1,933
Total intangible assets - net	$	15,362	19,936

The following table shows the actual aggregate amortization expense for the quarters ended June 30, 2021 and 2020, as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands):

For the quarter ended June 30, 2021	$	1,433
For the quarter ended June 30, 2020	1,760
For the six months ended June 30, 2021	3,027
For the six months ended June 30, 2020	3,411
For the year ending December 31, 2021	5,509
For the year ending December 31, 2022	4,277
For the year ending December 31, 2023	3,270
For the year ending December 31, 2024	2,452
For the year ending December 31, 2025	1,662
For the year ending December 31, 2026	871

    The following table provides information for the changes in the carrying amount of goodwill (in thousands):

	Total
Balance at December 31, 2019	$	346,103
Goodwill acquired	36,176
Balance at December 31, 2020	382,279
Purchase accounting adjustment	77
Goodwill disposed of due to sale of insurance business	(1,359)
Balance at June 30, 2021	$	380,997

    We performed our annual goodwill impairment test as of June 30, 2021 in accordance with ASC 350, as updated by ASU 2017-04 ("Step 0"), and concluded that goodwill was not impaired.

(5)    Borrowed Funds

    (a)    Borrowings

	June 30, 2021
	Amount		Average rate
Collateralized borrowings, due within one year	$	133,876	0.19	%
Subordinated debentures, net of issuance costs	123,501		4.00	%
Total borrowed funds	$	257,377

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Borrowings from the Federal Home Loan Banks ("FHLB") of Pittsburgh and Indianapolis, if any, are secured by our residential first mortgage and other qualifying loans. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. During the quarter ended June 30, 2021, $2.0 million of term notes payable to the FHLB of Indianapolis matured.

    The revolving line of credit with the FHLB of Pittsburgh carries a commitment of $250.0 million. The rate is adjusted daily by the FHLB of Pittsburgh, and any borrowings on this line may be repaid at any time without penalty. The revolving line of credit had no balance as of June 30, 2021 and December 31, 2020.

    At June 30, 2021 and December 31, 2020, collateralized borrowings due within one year were $133.9 million and $137.7 million, respectively. These borrowings are collateralized by cash or various securities held in safekeeping by the FHLB.

On September 9, 2020, the Company issued $125.0 million of 4.00% fixed-to-floating rate subordinated notes with a maturity date of September 15, 2030. The subordinated notes, which qualify as Tier 2 capital, bear interest at an annual rate of 4.00%, payable semi-annually in arrears commencing on March 15, 2021, and a floating rate of interest equivalent to the 3-month Secured Overnight Financing Rate ("SOFR") plus 3.89% payable quarterly in arrears commencing on December 15, 2025. The subordinated debt issuance costs of approximately $1.8 million are being amortized over five years on a straight-line basis into interest expense.

(b)    Trust Preferred Securities

The Company has seven statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust, Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust, LNB Trust II, a Delaware statutory business trust, Union National Capital Trust I ("UNCT I"), a Delaware statutory business trust, Union National Capital Trust II ("UNCT II"), a Delaware statutory business trust, MFBC Statutory Trust I, a Delaware statutory trust, and Universal Preferred Trust, a Delaware statutory trust (the "Trusts"). The Trusts exist solely to issue preferred securities to third parties for cash, issue common securities to the Company in exchange for capitalization of the Trusts, invest the proceeds from the sale of trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. 

The Trusts have invested the proceeds of the offerings in junior subordinated deferrable interest debentures issued by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. These subordinated debentures are the sole assets of the Trusts. As the shareholders of the trust preferred securities are the primary beneficiaries of the Trusts, the Trusts are not consolidated in our financial statements.

The following table sets forth a summary of the cumulative trust preferred securities and the junior subordinated debt held by the Trust as of June 30, 2021.

	Maturity date	Interest rate	Capital debt securities	June 30, 2021
Northwest Bancorp Capital Trust III	December 30, 2035	3-month LIBOR plus 1.38%	$50,000	$	51,547
Northwest Bancorp Statutory Trust IV	December 15, 2035	3-month LIBOR plus 1.38%	50,000	51,547
LNB Trust II	June 15, 2037	3-month LIBOR plus 1.48%	7,875	8,119
UNCT I (1)	January 23, 2034	3-month LIBOR plus 2.85%	8,000	7,938
UNCT II (1)	November 23, 2034	3-month LIBOR plus 2.00%	3,000	2,727
MFBC Statutory Trust I (1)	September 15, 2035	3-month LIBOR plus 1.70%	5,000	3,528
Universal Preferred Trust (1)	October 7, 2035	3-month LIBOR plus 1.69%	5,000	3,518
				$	128,924

(1) Net of discounts due to the fair value adjustment made at the time of acquisition.

Cash distributions on the trust securities are made on a quarterly basis to the extent interest on the debentures is received by the Trusts.  We have the right to defer payment of interest on the subordinated debentures at any time, or from time-to-time, for periods not exceeding five years. If interest payments on the subordinated debentures are deferred, the distributions on the trust securities also are deferred. To date there have been no interest deferrals. Interest on the subordinated debentures and distributions on the trust securities is cumulative. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities.

The Trusts must redeem the preferred securities when the debentures are paid at maturity or upon an earlier redemption of the debentures to the extent the debentures are redeemed. All or part of the debentures may be redeemed at any time. Also, the debentures may be redeemed at any time if existing laws or regulations, or the interpretation or application of these laws or regulations, change causing:

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•the interest on the debentures to no longer be deductible by the Company for federal income tax purposes;

•the trusts to become subject to federal income tax or to certain other taxes or governmental charges;

•the trusts to register as an investment company; or

•the preferred securities to no longer qualify as Tier I capital. 

We may, at any time, dissolve any of the Trusts and distribute the debentures to the trust security holders, subject to receipt of any required regulatory approvals.

(6)    Guarantees

We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. We are required to perform under a standby letter of credit when drawn upon by the guaranteed third party in the case of nonperformance by our customer. The credit risk associated with standby letters of credit is essentially the same as that involved in extending loans to customers and is subject to normal loan underwriting procedures. Collateral may be obtained based on management’s credit assessment of the customer. At June 30, 2021, the maximum potential amount of future payments we could be required to make under these non-recourse standby letters of credit was $46.4 million, of which $38.0 million is fully collateralized. At June 30, 2021, we had a liability which represents deferred income of $530,000 related to the standby letters of credit. 

(7)    Earnings Per Share

     Basic earnings per common share ("EPS") is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, without considering any dilutive items. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the Company.

The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): 

	Quarter ended June 30,			Six months ended June 30,
	2021		2020	2021	2020
Net income	$	48,967	(6,200)	89,204	1,739
Less: Dividends and undistributed earnings allocated to participating securities	340		(47)	619	13
Net income available to common shareholders	$	48,627	(6,153)	88,585	1,726
Weighted average common shares outstanding	126,749,707		121,480,563	126,456,814	113,672,131
Add: Participating shares outstanding	887,958		982,754	887,958	982,754
Total weighted average common shares and dilutive potential shares	$	127,637,665	122,463,317	127,344,772	114,654,885
Basic earnings per share	$	0.38	(0.05)	0.70	0.02
Diluted earnings per share	$	0.38	(0.05)	0.70	0.02

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(8)    Pension and Other Post-Retirement Benefits

The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands):

	Quarter ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	2,860	2,098	—	—
Interest cost	1,518		1,714	5	6
Expected return on plan assets	(3,465)		(3,091)	—	—
Amortization of prior service cost	(581)		(581)	—	—
Amortization of the net loss	1,040		924	3	4
Net periodic cost	$	1,372	1,064	8	10

	Six months ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	5,720	4,196	—	—
Interest cost	3,035		3,427	9	13
Expected return on plan assets	(6,930)		(6,182)	—	—
Amortization of prior service cost	(1,161)		(1,161)	—	—
Amortization of the net loss	2,079		1,848	7	9
Net periodic cost	$	2,743	2,128	16	22

    We anticipate making a contribution to our defined benefit pension plan of $4.0 million to $8.0 million during the year ending December 31, 2021.

(9)    Disclosures About Fair Value of Financial Instruments

    We are required to disclose fair value information about financial instruments whether or not recognized in the Consolidated Statement of Financial Condition. Fair value information of certain financial instruments and all nonfinancial instruments is not required to be disclosed. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

    Financial assets and liabilities recognized or disclosed at fair value on a recurring basis and certain financial assets and liabilities on a non-recurring basis are accounted for using a three-level hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. This hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within different levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used.

    Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques:

•    Level 1 - Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities.

•    Level 2 - Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing.

•     Level 3 - Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include the following:

◦Quotes from brokers or other external sources that are not considered binding;

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◦Quotes from brokers or other external sources where it cannot be determined that market participants would in fact transact for the asset or liability at the quoted price;

◦Quotes and other information from brokers or other external sources where the inputs are not deemed observable.

    We are responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. We perform due diligence to understand the inputs used or how the data was calculated or derived. We also corroborate the reasonableness of external inputs in the valuation process.

    The carrying amounts reported in the Consolidated Statement of Financial Condition approximate fair value for the following financial instruments: cash and cash equivalents, marketable securities available-for-sale, accrued interest receivable, interest rate lock commitments, forward commitments, interest rate swaps, savings and checking deposits, risk participation agreements and accrued interest payable.

Marketable Securities

Where available, market values are based on quoted market prices, dealer quotes, and prices obtained from independent pricing services.

Debt Securities — available-for-sale - Generally, debt securities are valued using pricing for similar securities, recently executed transactions and other pricing models utilizing observable inputs. The valuation for most debt securities is classified as Level 2. Securities within Level 2 include corporate bonds, municipal bonds, mortgage-backed securities and U.S. government obligations. Certain debt securities which were AAA rated at purchase do not have an active market and as such we have used an alternative method to determine the fair value of these securities. The fair value has been determined using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, securities which otherwise would have been classified as Level 2 securities if an active market for those assets or similar assets existed are included herein as Level 3 assets.

Debt Securities — held-to-maturity - The fair value of debt securities held-to-maturity is determined in the same manner as debt securities available-for-sale.

Loans Receivable

    Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Each loan pool is separately valued utilizing a discounted cash flow analysis. Projected monthly cash flows are discounted to present value using a market rate for comparable loans, which is not considered an exit price. Characteristics of comparable loans include remaining term, coupon interest, and estimated prepayment speeds. Delinquent loans are separately evaluated given the impact delinquency has on the projected future cash flow of the loan including the approximate discount or market rate, which is not considered an exit price.

Loans Held-for-Sale

    The estimated fair value of loans held-for-sale is based on market bids obtained from potential buyers.

Loans Held for Investment

    The fair value of loans held for investment is estimated using a discounted cash flow analysis that utilizes interest rates currently being offered for similar loans adjusted for liquidity and credit risk.

FHLB Stock

Due to the restrictions placed on transferability of FHLB stock, it is not practical to determine the fair value.

Deposit Liabilities

    The estimated fair value of deposits with no stated maturity, which includes demand deposits, money market, and other savings accounts, is the amount payable on demand. Although market premiums paid for depository institutions reflect an additional value for these low-cost deposits, adjusting fair value for any value expected to be derived from retaining those deposits for a future period of time or from the benefit that results from the ability to fund interest-earning assets with these deposit liabilities is prohibited. The fair value estimates of deposit liabilities do not include the benefit that results from the low-cost funding provided by these

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deposits compared to the cost of borrowing funds in the market. Fair values for time deposits are estimated using a discounted cash flow calculation that applies contractual cost currently being offered in the existing portfolio to current market rates being offered locally for deposits of similar remaining maturities. The valuation adjustment for the portfolio consists of the present value of the difference of these two cash flows, discounted at the assumed market rate of the corresponding maturity.

 Borrowed Funds

Fixed rate advances are valued by comparing their contractual cost to the prevailing market cost.  The carrying amount of collateralized borrowings approximates the fair value. The fair value of our subordinated debentures is calculated using the discounted cash flows at rates observable for other similarly traded liabilities.

Junior Subordinated Debentures

The fair value of junior subordinated debentures is calculated using the discounted cash flows at the prevailing rate of interest.

Interest Rate Lock Commitments and Forward Commitments

The fair value of interest rate lock commitments is based on the value of underlying loans held-for-sale which is based on quoted prices for similar loans in the secondary market.  This value is then adjusted based on the probability of the loan closing (i.e., the “pull-through” amount, a significant unobservable input).  The fair value of forward sale commitments is based on quoted prices from the secondary market based on the settlement date of the contracts.  

Cash Flow Hedges, Interest Rate and Foreign Exchange Swap Agreements

    The fair value of interest rate swaps is based upon the present value of the expected future cash flows using the LIBOR swap curve, the basis for the underlying interest rate. To price interest rate swaps, cash flows are first projected for each payment date using the fixed rate for the fixed side of the swap and the forward rates for the floating side of the swap. These swap cash flows are then discounted to time zero using LIBOR zero-coupon interest rates. The sum of the present value of both legs is the fair market value of the interest rate swap. These valuations have been derived from our third party vendor’s proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions that we believe to be reasonable. The fair value of the foreign exchange swap is derived from proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions we believe to be reasonable. Risk participation agreements are entered into when Northwest purchases a portion of a commercial loan that has an interest rate swap. Northwest assumes credit risk on its portion of the interest rate swap should the borrower fail to pay as agreed. The value of risk participation agreements is determined based on the value of the swap after considering the credit quality, probability of default, and loss given default of the borrower.

Off-Balance Sheet Financial Instruments

These financial instruments generally are not sold or traded, and estimated fair values are not readily available. However, the fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements. Commitments to extend credit are generally short-term in nature and, if drawn upon, are issued under current market terms. At June 30, 2021 and December 31, 2020, there was no significant unrealized appreciation or depreciation on these financial instruments.

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The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at June 30, 2021 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	857,152	857,152	857,152	—	—
Securities available-for-sale	1,599,024		1,599,024	—	1,599,024	—
Securities held-to-maturity	639,424		632,620	—	632,620	—
Loans receivable, net	10,163,595		10,152,694	—	—	10,152,694
Residential mortgage loans held-for-sale	29,055		29,055	—	—	29,055
Accrued interest receivable	27,585		27,585	27,585	—	—
Interest rate lock commitments	3,608		3,608	—	—	3,608
Forward commitments	393		393	—	393	—
Foreign exchange swaps	94		94	—	94	—
Interest rate swaps not designated as hedging instruments	38,054		38,054	—	38,054	—
FHLB stock	23,287		23,287	—	—	—
Total financial assets	$	13,381,271	13,363,566	884,737	2,270,185	10,185,357
Financial liabilities:
Savings and checking deposits	$	10,627,610	10,627,610	10,627,610	—	—
Time deposits	1,463,098		1,480,940	—	—	1,480,940
Borrowed funds	257,377		262,405	133,876	128,529	—
Junior subordinated debentures	128,924		121,598	—	—	121,598
Foreign exchange swaps	4		4	—	4	—
Interest rate swaps not designated as hedging instruments	38,349		38,349	—	38,349	—
Risk participation agreements	84		84	—	84	—
Accrued interest payable	1,820		1,820	1,820	—	—
Total financial liabilities	$	12,517,266	12,532,810	10,763,306	166,966	1,602,538

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The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2020 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	736,277	736,277	736,277	—	—
Securities available-for-sale	1,398,941		1,398,941	—	1,398,941	—
Securities held-to-maturity	178,887		179,666	—	179,666	—
Loans receivable, net	10,387,636		10,334,521	—	—	10,334,521
Residential mortgage loans held-for-sale	58,786		58,786	—	—	58,786
Accrued interest receivable	35,554		35,554	35,554	—	—
Interest rate lock commitments	6,465		6,465	—	—	6,465
Forward commitments	1,105		1,105	—	1,105	—
Interest rate swaps not designated as hedging instruments	53,863		53,863	—	53,863	—
FHLB stock	21,748		21,748	—	—	—
Total financial assets	$	12,879,262	12,826,926	771,831	1,633,575	10,399,772
Financial liabilities:
Savings and checking accounts	$	9,957,137	9,957,137	9,957,137	—	—
Time deposits	1,642,096		1,669,546	—	—	1,669,546
Borrowed funds	283,044		283,074	159,745	123,329	—
Junior subordinated debentures	128,794		121,106	—	—	121,106
Interest rate swaps not designated as hedging instruments	54,579		54,579	—	54,579	—
Risk participation agreements	86		86	—	86	—
Accrued interest payable	2,054		2,054	2,054	—	—
Total financial liabilities	$	12,067,790	12,087,582	10,118,936	177,994	1,790,652

Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The methods and assumptions detailed above were used in estimating the fair value of financial instruments at both June 30, 2021 and December 31, 2020. 

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    The following table represents assets and liabilities measured at fair value on a recurring basis at June 30, 2021 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	59,254	—	59,254
Government-sponsored enterprises	—		71,858	—	71,858
States and political subdivisions	—		115,029	—	115,029
Total debt securities	—		246,141	—	246,141
Residential mortgage-backed securities:
GNMA	—		19,887	—	19,887
FNMA	—		184,700	—	184,700
FHLMC	—		114,475	—	114,475
Non-agency	—		448	—	448
Collateralized mortgage obligations:
GNMA	—		490,520	—	490,520
FNMA	—		306,516	—	306,516
FHLMC	—		236,337	—	236,337
Total mortgage-backed securities	—		1,352,883	—	1,352,883
Interest rate lock commitments	—		—	3,608	3,608
Forward commitments	—		393	—	393
Foreign exchange swaps	—		94	—	94
Interest rate swaps not designated as hedging instruments	—		38,054	—	38,054
Total assets	$	—	1,637,565	3,608	1,641,173
Foreign exchange swaps	$	—	4	—	4
Interest rate swaps not designated as hedging instruments	—		38,349	—	38,349
Risk participation agreements	—		84	—	84
Total liabilities	$	—	38,437	—	38,437

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    The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2020 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	40,917	—	40,917
Government-sponsored enterprises	—		94,507	—	94,507
States and political subdivisions	—		116,813	—	116,813
Total debt securities	—		252,237	—	252,237
Residential mortgage-backed securities:
GNMA	—		23,026	—	23,026
FNMA	—		203,571	—	203,571
FHLMC	—		134,572	—	134,572
Non-agency	—		465	—	465
Collateralized mortgage obligations:
GNMA	—		343,409	—	343,409
FNMA	—		262,109	—	262,109
FHLMC	—		179,552	—	179,552
Total mortgage-backed securities	—		1,146,704	—	1,146,704
Interest rate lock commitments	—		—	6,465	6,465
Forward commitments	—		1,105	—	1,105
Interest rate swaps not designated as hedging instruments	—		53,863	—	53,863
Total assets	$	—	1,453,909	6,465	1,460,374
Interest rate swaps not designated as hedging instruments	$	—	54,579	—	54,579
Risk participation agreements	—		86	—	86
Total liabilities	$	—	54,665	—	54,665

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

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Beginning balance	$	5,060	507	6,465	559
Total gains or losses:
Included in net income	—		—	—	—
Included in other comprehensive income	—		—	—	—
Interest rate lock commitments:
Net activity	(1,452)		6,909	(2,857)	6,857
Transfers from Level 3	—		—	—	—
Transfers into Level 3	—		—	—	—
Ending balance	$	3,608	7,416	3,608	7,416

Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans held-for-sale, loans individually assessed, real estate owned, and mortgage servicing rights. 

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    The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of June 30, 2021 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	91,288	91,288
Mortgage servicing rights	—		—	2,211	2,211
Real estate owned, net	—		—	1,353	1,353
Total assets	$	—	—	94,852	94,852

    The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2020 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	95,303	95,303
Real estate owned, net	—		—	2,232	2,232
Total assets	$	—	—	97,535	97,535

    Individually Assessed Loans - A loan is considered to be individually assessed as described in Note 1(f) of the Notes to the Consolidated Financial Statements in Item 8 of Part II of our 2020 Annual Report on Form 10-K. We classify loans individually assessed as nonrecurring Level 3.

    Real Estate Owned - Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the related loan balance or fair value, less estimated disposition costs, with the fair value being determined by appraisal. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or fair value, less estimated disposition costs. We classify real estate owned as nonrecurring Level 3. 

The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at June 30, 2021 (in thousands): 

	Fair value		Valuation techniques	Significant unobservable inputs	Range  (weighted average)
Loans individually assessed	$	91,288	Appraisal value (1)	Estimated cost to sell	10.0%
			Discounted cash flow	Discount rate	10.92% to 15.4% (12.27%)
Mortgage servicing rights	2,211		Discounted cash	Annual service cost	$84
			flow	Prepayment rates	11.9% to 28.1% (22.3%)
				Expected life (months)	41.4 to 70.7 (57.3)
				Option adjusted spread	750 basis points
				Forward yield curve	0.09% to 1.56%
Real estate owned, net	$	1,353	Appraisal value (1)	Estimated cost to sell	10.0%

(1)Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

(10)    Derivative Financial Instruments

    We are a party to derivative financial instruments in the normal course of business to manage our own exposure to fluctuations in interest rates and to meet the needs of our customers. The primary derivatives that we use are interest rate swaps and caps and foreign exchange contracts, which are entered into with counterparties that meet established credit standards. We believe that the credit risk inherent in all of our derivative contracts is minimal based on our credit standards and the netting and collateral provisions of the interest rate swap agreements.

Derivatives Designated as Hedging Instruments

    During March 2020, the Company entered into four separate pay-fixed interest rate swaps in order to synthetically convert short-term three month FHLB advances to fixed-rate term funding with an aggregate value of $100 million with maturities ranging from three to five years. Our risk management objective and strategy for these interest rate swaps at such time was to reduce our

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exposure to variability in interest-related cash outflows attributable to changes in the USD-LIBOR swap rate, the designated benchmark interest rate being hedged.  Based upon our contemporaneous quantitative analysis at the inception of each interest rate swap, we have determined these interest rate swaps to qualify for hedge accounting in accordance with ASC 815, Derivatives and Hedging.

    The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the quarter ended September 30, 2020, the Company discontinued these cash flow hedges and, as a result, reclassified a $1.3 million loss into earnings. As of June 30, 2021, the Company had no cash flow hedges.

Derivatives Not Designated as Hedging Instruments

    We act as an interest rate or foreign exchange swap counterparty for certain commercial borrowers in the normal course of servicing our customers, which are accounted for at fair value. We manage our exposure to such interest rate or foreign exchange swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the swaps we have with the commercial borrowers. These positions (referred to as “customer swaps”) directly offset each other and our exposure is the fair value of the derivatives due to changes in credit risk of our commercial borrowers and third parties. Customer swaps are recorded within other assets or other liabilities on the consolidated statement of financial condition at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the Consolidated Statement of Income.

    We enter into interest rate lock commitments for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate within a specified period of time.  Interest rate lock commitments that relate to the origination of mortgage loans that will be held-for-sale are considered derivative financial instruments under applicable accounting guidance. Interest rate lock commitments on loans held-for-sale are carried at fair value in other assets on the consolidated statement of financial condition. Northwest sells loans to the secondary market on a mandatory or best efforts basis.  The loans sold on a mandatory basis commit us to deliver a specific principal amount of mortgage loans to an investor at a specified price, by a specified date, or the commitment must be paired off. These forward commitments entered into on a mandatory delivery basis meet the definition of a derivative financial instrument. All closed loans to be sold on a mandatory delivery basis are classified as held-for-sale on the Consolidated Statement of Financial Condition. Changes to the fair value of the interest rate lock commitments and the forward commitments are recorded in mortgage banking income in the Consolidated Statements of Income.

    We enter into risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution.

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    The following table presents information regarding our derivative financial instruments for the periods indicated (in thousands):

	Asset derivatives			Liability derivatives
	Notional amount		Fair value	Notional amount	Fair value
At June 30, 2021
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	602,029	38,054	602,029	38,349
Foreign exchange swap agreements	6,265		94	3,088	4
Interest rate lock commitments	127,328		3,608	—	—
Forward commitments	12,166		393	—	—
Risk participation agreements	—		—	82,157	84
Total derivatives	$	747,788	42,149	687,274	38,437
At December 31, 2020
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	599,300	53,863	599,300	54,579
Interest rate lock commitments	171,357		6,465	—	—
Forward commitments	25,474		1,105	—	—
Risk participation agreements	—		—	77,532	86
Total derivatives	$	796,131	61,433	676,832	54,665

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The following table presents income or expense recognized on derivatives for the periods indicated (in thousands):

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Hedging derivatives:
Decrease in interest expense	$	—	(90)	—	(102)
Non-hedging swap derivatives:
Increase/(decrease) in other income	(26)		(345)	498	(522)
Increase in mortgage banking income	1,510		8,247	3,570	8,248

(11)    Legal Proceedings

We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. As of June 30, 2021, we do not anticipate that the aggregate ultimate liability arising out of any pending or threatened legal proceedings will be material to our Consolidated Financial Statements.  Any such accruals are adjusted thereafter as appropriate to reflect changes in circumstances. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate loss to us from legal proceedings.

    During the year-ended December 31, 2018, Northwest and our subsidiary, The Bert Company (doing business as Northwest Insurance Services) (“NWIS”), were involved in a lawsuit against, among others, First National Bank of Pennsylvania (“FNB”) and their insurance subsidiary, First National Insurance Agency, LLC (“FNIA”). All counterclaims against Northwest were discontinued and, in December 2018, a verdict was rendered in favor of NWIS on several of its claims. Post-trial proceedings have continued throughout the current year and, due to the inherent uncertainties with respect to these proceedings, we have not accrued any awards associated with this verdict within our Consolidated Financial Statements as of June 30, 2021.

(12)    Changes in Accumulated Other Comprehensive Income

The following tables show the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): 

	For the quarter ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2021	$	(653)	—	(50,059)	(50,712)
Other comprehensive income before reclassification adjustments (1)	4,322		—	—	4,322
Amounts reclassified from accumulated other comprehensive income (2) (3)	(136)		—	334	198
Net other comprehensive income	4,186		—	334	4,520
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

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	For the quarter ended June 30, 2020
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2020	$	11,341	(409)	(39,839)	(28,907)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	4,790		(537)	—	4,253
Amounts reclassified from accumulated other comprehensive income (6) (7)	(35)		—	249	214
Net other comprehensive income/(loss)	4,755		(537)	249	4,467
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding gains, net of tax of $1,245.

(2)Consists of realized losses, net of tax of ($43).

(3)Consists of realized gains, net of tax of $128.

(4)Consists of unrealized holding gains, net of tax $1,902.

(5)Consists of realized losses, net of tax ($47).

(6)Consists of realized losses, net of tax of ($13).

(7)Consists of realized gains, net of tax of $99. 

	For the six months ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2020	$	16,843	—	(50,392)	(33,549)
Other comprehensive loss before reclassification adjustments (1)	(13,099)		—	—	(13,099)
Amounts reclassified from accumulated other comprehensive income (2) (3)	(211)		—	667	456
Net other comprehensive income/loss	(13,310)		—	667	(12,643)
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

	For the six months ended June 30, 2020
	Unrealized  gains  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2019	$	3,147	—	(40,088)	(36,941)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	12,947		(946)	—	12,001
Amounts reclassified from accumulated other comprehensive income (6) (7)	2		—	498	500
Net other comprehensive income/(loss)	12,949		(946)	498	12,501
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding losses, net of tax of ($4,736).

(2)Consists of realized losses, net of tax of ($65).

(3)Consists of realized gains, net of tax of $258.

(4)Consists of unrealized holding gains, net of tax $5,179.

(5)Consists of realized holding losses, net of tax ($209) .

(6)Consists of realized gains, net of tax of $1.

(7)Consists of realized gains, net of tax of $198. 

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Item 2.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Statements

In addition to historical information, this document may contain certain forward-looking statements, as defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements contained herein are subject to certain risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements.  Readers are cautioned not to place undue reliance on these forward-looking statements, as they reflect management’s analysis only as of the date of this report. We have no obligation to revise or update these forward-looking statements to reflect events or circumstances that arise after the date of this report.

Important factors that might cause such a difference include, but are not limited to:

•     the disruption to local, regional, national and global economic activity caused by infectious disease outbreaks, including the outbreak of coronavirus, or COVID-19, and the significant impact that such outbreak has had and may continue to have on our growth, operations and earnings;

•changes in asset quality, including increases in default rates on loans and higher levels of nonperforming loans and loan charge-offs generally, and specifically resulting from the economic dislocation caused by the COVID-19 pandemic;

•changes in laws or government regulations or policies affecting financial institutions, including changes in regulatory fees and capital requirements;

•     general economic conditions, either nationally or in our market areas, that are different than expected;

•     inflation and changes in the interest rate environment that reduce our margins or reduce the fair value of financial instruments;

•     adverse changes in the securities and credit markets;

•    cyber-security concerns, including an interruption or breach in the security of our website or other information systems;

•     technological changes that may be more difficult or expensive than expected;

•     the ability of third-party providers to perform their obligations to us;

•     competition among depository and other financial institutions;

•     our ability to enter new markets successfully and capitalize on growth opportunities;

•     managing our internal growth and our ability to successfully integrate acquired entities, businesses or branch offices;

•     changes in consumer spending, borrowing and savings habits;

•     our ability to continue to increase and manage our commercial and personal loans;

•    possible impairments of securities held by us, including those issued by government entities and government sponsored enterprises;

•    the impact of the economy on our loan portfolio (including cash flow and collateral values), investment portfolio, customers and capital market activities;

•     our ability to receive regulatory approvals for proposed transactions or new lines of business;

•     changes in the financial performance and/or condition of our borrowers; and

•    the effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Securities and Exchange Commission, the Public Company Accounting Oversight Board, the FASB and other accounting standard setters.

Overview of Critical Accounting Policies Involving Estimates

Please refer to Note 1 of the Notes to Consolidated Financial Statements in Item 8 of Part II of our 2020 Annual Report on Form 10-K.

Recently Issued Accounting Standards

    The following accounting standard updates issued by the FASB have not yet been adopted.

    In March 2020, the FASB issued ASU No. 2020-04, “Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” This ASU provides temporary optional guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates. The

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guidance provides expedients and exceptions for applying GAAP to transactions affected by reference rate reform if certain criteria are met. The amendments primarily include contract modifications and hedge accounting, as well as providing a one-time election for the sale or transfer of debt securities classified as held-to-maturity. This guidance is effective as of March 12, 2020 through December 31, 2022. We are currently in the process of evaluating the amendments and determining the impact on our financial statements.

In January 2021, the FASB issued ASU No. 2021-01, "Reference Rate Reform." This ASU provides amendments, which are elective, and apply to all entities that have derivative instruments that use an interest rate for margining, discounting or contract price alignment of certain derivative instruments that are modified as a result of the reference rate reform. This guidance is effective as of the date of issuance through December 31, 2022. We are currently in the process of evaluating the amendments and determining the impact on our financial statements.

Comparison of Financial Condition

Total assets at June 30, 2021 were $14.298 billion, an increase of $491.8 million, or 3.6%, from $13.806 billion at December 31, 2020.  This increase in assets was largely due to an increase in marketable securities held-to-maturity and available-for-sale as well as an increase in total cash and cash equivalents, as described in further detail below.

Total cash and cash equivalents increased by $120.9 million, or 16.4%, to $857.2 million at June 30, 2021 from $736.3 million at December 31, 2020. This increase was primarily due to the increase in customer deposit balances associated with consumer stimulus checks and loan funds from the continuation of the Paycheck Protection Program ("PPP").

Total marketable securities increased by $660.6 million, or 41.9%, to $2.238 billion at June 30, 2021 from $1.578 billion at December 31, 2020. This increase was primarily due to the $460.5 million increase in held-to-maturity marketable securities as a result of investing excess cash generated by deposits within our held-to-maturity portfolio.

Total loans receivable decreased by $270.9 million, or 2.6%, to $10.310 billion at June 30, 2021, from $10.581 billion at December 31, 2020. This decrease was due to loan paydowns and payoffs outpacing new originations across all of our loan portfolios during the current quarter, including PPP forgiveness, with the exception of consumer loans, primarily indirect auto, which increased by $237.2 million, or 15.7%, to $1.745 billion at June 30, 2021 compared to $1.508 billion at December 31, 2020.

     Total deposits increased by $491.5 million, or 4.2%, to $12.091 billion at June 30, 2021 from $11.599 billion at December 31, 2020. This increase was primarily due to increases in checking deposits of $354.7 million, or 6.5%, as well as savings and money market deposits of $315.8 million, or 7.0%. These increases were primarily the result of consumer stimulus checks and PPP loan funds. Partially offsetting this increase was a decrease in time deposits of $179.0 million, or 10.9%, as customers move funds from term products to checking and savings accounts.

Total shareholders’ equity at June 30, 2021 was $1.575 billion, or $12.32 per share, an increase of $36.7 million, or 2.4%, from $1.539 billion, or $12.11 per share, at December 31, 2020.  This increase was primarily the result of quarterly earnings of $49.0 million. Partially offsetting this increase was the payment of cash dividends of $25.5 million for the quarter ended June 30, 2021.

Regulatory Capital

    Financial institutions and their holding companies are subject to various regulatory capital requirements. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by the regulators that, if undertaken, could have a direct, material effect on a company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, financial institutions must meet specific capital guidelines that involve quantitative measures of its assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting guidelines. Capital amounts and classifications are also subject to qualitative judgments made by the regulators about components, risk-weighting and other factors.

    Applicable rules limit an organization’s capital distributions and certain discretionary bonus payments if the organization does not hold a "capital conservation buffer" consisting of 2.5% of Total, Tier 1 and Common Equity Tier 1 ("CET1") capital to risk-weighted assets in addition to the amount necessary to meet its minimum risk-based capital requirements.

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    Quantitative measures, established by regulation to ensure capital adequacy, require financial institutions to maintain minimum amounts and ratios (set forth in the table below) of Total, CET1 and Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital to average assets (as defined). Capital requirements are presented in the tables below (in thousands).

	At June 30, 2021
					Minimum capital				Well capitalized
	Actual				requirements (1)				requirements
	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk weighted assets)
Northwest Bancshares, Inc.	$	1,718,814	17.087	%	$	1,056,219	10.500	%	$	1,005,923	10.000	%
Northwest Bank	1,491,293		14.839	%	1,055,241		10.500	%	1,004,991		10.000	%
Tier 1 capital (to risk weighted assets)
Northwest Bancshares, Inc.	1,474,489		14.658	%	855,035		8.500	%	804,739		8.000	%
Northwest Bank	1,395,558		13.886	%	854,243		8.500	%	803,993		8.000	%
CET1 capital (to risk weighted assets)
Northwest Bancshares, Inc.	1,349,554		13.416	%	704,146		7.000	%	653,850		6.500	%
Northwest Bank	1,395,558		13.886	%	703,494		7.000	%	653,244		6.500	%
Tier 1 capital (leverage) (to average assets)
Northwest Bancshares, Inc.	1,474,489		10.265	%	574,557		4.000	%	718,196		5.000	%
Northwest Bank	1,395,558		9.855	%	566,453		4.000	%	708,066		5.000	%

(1) Amounts and ratios include the capital conservation buffer of 2.5%, which does not apply to Tier 1 capital to average assets (leverage ratio).

	At December 31, 2020
					Minimum capital				Well capitalized
	Actual				requirements (1)				requirements
	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk weighted assets)
Northwest Bancshares, Inc.	$	1,654,198	16.642	%	$	1,043,693	10.500	%	$	993,993	10.000	%
Northwest Bank	1,478,310		14.887	%	1,042,655		10.500	%	993,004		10.000	%
Tier I capital (to risk weighted assets)
Northwest Bancshares, Inc.	1,406,321		14.148	%	844,894		8.500	%	795,195		8.000	%
Northwest Bank	1,354,028		13.636	%	844,054		8.500	%	794,403		8.000	%
CET1 capital (to risk weighted assets)
Northwest Bancshares, Inc.	1,281,516		12.893	%	695,795		7.000	%	646,096		6.500	%
Northwest Bank	1,354,028		13.636	%	695,103		7.000	%	645,453		6.500	%
Tier I capital (leverage) (to average assets)
Northwest Bancshares, Inc.	1,406,321		10.145	%	554,501		4.000	%	693,126		5.000	%
Northwest Bank	1,354,028		9.903	%	546,905		4.000	%	683,631		5.000	%

(1) Amounts and ratios include the capital conservation buffer of 2.5%, which does not apply to Tier 1 capital to average assets (leverage ratio).

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Liquidity

We are required to maintain a sufficient level of liquid assets, as determined by management and reviewed for adequacy by the FDIC and the Pennsylvania Department of Banking and Securities during their regular examinations. Northwest monitors its liquidity position primarily using the ratio of unencumbered available-for-sale liquid assets as a percentage of deposits and borrowings (“liquidity ratio”).  Northwest Bank’s liquidity ratio at June 30, 2021 was 18.8%. We adjust liquidity levels in order to meet funding needs for deposit outflows, payment of real estate taxes and insurance on mortgage loan escrow accounts, repayment of borrowings and loan commitments. At June 30, 2021, Northwest had $3.695 billion of additional borrowing capacity available with the FHLB, including $250.0 million on an overnight line of credit which had no balance at June 30, 2021, as well as $85.7 million of borrowing capacity available with the Federal Reserve Bank and $110.0 million with three correspondent banks.

Dividends

We paid $25.5 million and $24.3 million in cash dividends during the quarters ended June 30, 2021 and 2020, respectively.  The common stock dividend payout ratio (dividends declared per share divided by net income per diluted share) was 52.6% and (380.0%) for the quarters ended June 30, 2021 and June 30, 2020, respectively, on dividends of $0.20 per share for the quarter ended June 30, 2021 and $0.19 per share for the quarter ended June 30, 2020. On July 26, 2021, the Board of Directors declared a cash dividend of $0.20 per share payable on August 16, 2021 to shareholders of record as of August 5, 2021. This represents the 107th consecutive quarter we have paid a cash dividend.

Nonperforming Assets

The following table sets forth information with respect to nonperforming assets.  Nonaccrual loans are those loans on which the accrual of interest has ceased.  Generally, when a loan is 90 days past due, we fully reverse all accrued interest thereon and cease to accrue interest thereafter.  Exceptions are made for loans that have contractually matured, are in the process of being modified to extend the maturity date and are otherwise current as to principal and interest, and well-secured loans that are in the process of collection. Loans may also be placed on nonaccrual before they reach 90 days past due if conditions exist that call into question our ability to collect all contractual interest.  Other nonperforming assets represent property acquired through foreclosure or repossession. Foreclosed property is carried at the lower of its fair value less estimated costs to sell or the principal balance of the related loan.

	June 30, 2021			December 31, 2020
	(in thousands)
Nonaccrual loans 90 days or more past due:
Residential mortgage loans	$	10,007		14,489
Home equity loans	6,256			8,441
Consumer loans	2,341			5,473
Commercial real estate loans	23,564			25,287
Commercial loans	4,126			7,325
Total loans 90 days or more past due	$	46,294		61,015
Total REO, net	$	1,353		2,232
Total loans 90 days or more past due and REO	47,647			63,247
Total loans 90 days or more past due to net loans receivable	0.45		%	0.58	%
Total loans 90 days or more past due and REO to total assets	0.33		%	0.46	%
Nonperforming assets:
Nonaccrual loans - loans 90 days or more past due	46,294			61,015
Nonaccrual loans - loans less than 90 days past due	160,467			41,817
Loans 90 days or more past due and still accruing	302			585
Total nonperforming loans	207,063			103,417
Total nonperforming assets	$	208,416		105,649
Nonaccrual TDR loans (1)	$	8,951		10,704
Accruing TDR loans	18,480			21,431
Total TDR loans	$	27,431		32,135

(1)Included in nonaccrual loans above.

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Allowance for Credit Losses

We adopted CECL on January 1, 2020, as further described in Note 1(f) of the Notes to the Consolidated Financial Statements in Item 8 of Part II of our 2020 Annual Report on Form 10-K. Our Board of Directors has adopted an “Allowance for Credit Losses” policy designed to provide management with a systematic methodology for determining and documenting the allowance for credit losses each reporting period.  This methodology was developed to provide a consistent process and review procedure to ensure that the allowance for credit losses is in conformity with GAAP, our policies and procedures and other supervisory and regulatory guidelines.

On an ongoing basis, the Credit Administration department, as well as loan officers, branch managers and department heads, review and monitor the loan portfolio for problem loans. This portfolio monitoring includes a review of the monthly delinquency reports as well as historical comparisons and trend analysis. Personal and small business commercial loans are classified primarily by delinquency status. In addition, a meeting is held every quarter with each region to monitor the performance and status of commercial loans on an internal watch list.  On an on-going basis, the loan officer, in conjunction with a portfolio manager, grades or classifies problem commercial loans or potential problem commercial loans based upon their knowledge of the lending relationship and other information previously accumulated.  This rating is also reviewed independently by our Loan Review department on a periodic basis.  Our loan grading system for problem commercial loans is consistent with industry regulatory guidelines which classifies loans as “substandard”, “doubtful” or “loss.”  Loans that do not expose us to risk sufficient to warrant classification in one of the previous categories, but which possess some weaknesses, are designated as “special mention”.  A “substandard” loan is any loan that is 90 days or more contractually delinquent or is inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any.  Loans classified as “doubtful” have all the weaknesses inherent in those classified as “substandard” with the added characteristic that the weaknesses present make collection or liquidation in full, on the basis of currently existing facts, conditions or values, highly questionable and improbable.  Loans classified as “loss” have all the weakness inherent in those classified as "doubtful" and are considered uncollectible.

Credit relationships that have been classified as substandard or doubtful and are greater than or equal to $1.0 million are reviewed by the Credit Administration department to determine if they no longer continue to demonstrate similar risk characteristics to their loan pool. If a loan no longer demonstrates similar risk characteristics to their loan pool they are removed from the pool and an individual assessment will be performed.

If it is determined that a loan needs to be individually assessed, the Credit Administration department determines the proper measure of fair value for each loan based on one of three methods: (1) the present value of expected future cash flows discounted at the loan’s effective interest rate; (2) the loan’s observable market price; or (3) the fair value of the collateral if the loan is collateral dependent, less costs of sale or disposal.  If the measurement of the fair value of the loan is more or less than the amortized cost basis of the loan, the Credit Administration department adjusts the specific allowance associated with that individual loan accordingly.

If a substandard or doubtful loan is not individually assessed, it is grouped with other loans that possess common characteristics for credit losses and analysis.  For the purpose of calculating reserves, we have grouped our loans into seven segments: residential mortgage loans, home equity loans, vehicle loans, consumer loans, commercial real estate loans, commercial real estate loans - owner occupied and commercial loans. The allowance for credit losses is measured using a combination of statistical models. We use a twenty four month forecasting period and revert to historical average loss rates thereafter. Reversion to average loss rates takes place over twelve months. Historical average loss rates are calculated using historical data beginning in October 2009 through the current period.

The credit losses for individually assessed loans along with the estimated loss for each homogeneous pool are consolidated into one summary document. This summary schedule along with the support documentation used to establish this schedule is presented to management’s Allowance for Credit Loss Committee ("ACL Committee") monthly.  The ACL Committee reviews and approves the processes and ACL documentation presented.  Based on this review and discussion, the appropriate amount of ACL is estimated and any adjustments to reconcile the actual ACL with this estimate are determined.  The ACL Committee also considers if any changes to the methodology are needed. In addition to the ACL Committee's review and approval, a review is performed by the Risk Management Committee of the Board of Directors on a quarterly basis and annually by internal audit.

In addition to the reviews by management’s ACL Committee and the Board of Directors’ Risk Management Committee, regulators from either the FDIC and/or the Pennsylvania Department of Banking and Securities perform an extensive review on at least an annual basis for the adequacy of the ACL and its conformity with regulatory guidelines and pronouncements.  Any recommendations or enhancements from these independent parties are considered by management and the ACL Committee and implemented accordingly.

We acknowledge that this is a dynamic process and consists of factors, many of which are external and out of our control that can change frequently, rapidly and substantially. The adequacy of the ACL is based upon estimates using all the information

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previously discussed as well as current and known circumstances and events.  There is no assurance that actual portfolio losses will not be substantially different than those that were estimated.

     We utilize a structured methodology each period when analyzing the adequacy of the allowance for credit losses and the related provision for credit losses, which the ACL Committee assesses regularly for appropriateness.  As part of the analysis as of June 30, 2021, we considered the most recent economic conditions and forecasts available which incorporated the impact of COVID-19. In addition, we considered the overall trends in asset quality, reserves on individually assessed loans, historical loss rates and collateral valuations. The ACL decreased by $17.1 million, or 12.7%, to $117.3 million, or 1.14% of total loans at June 30, 2021 from $134.4 million, or 1.27% of total loans, at December 31, 2020.  Total classified loans decreased $36.2 million, or 7.4%, to $453.1 million at June 30, 2021 from $489.3 million at December 31, 2020. This decrease was primarily due to the upgrade and payoff of loans in our commercial real estate portfolios during the year.

We also consider how the levels of nonaccrual loans and historical charge-offs have influenced the required amount of allowance for credit losses. Nonaccrual loans of $206.8 million, or 2.01% of total loans receivable at June 30, 2021, increased by $103.9 million, or 46.4%, from $102.8 million, or 0.97% of total loans receivable at December 31, 2020. This increase was primarily related to loans within the hospitality industry as they were judgmentally placed on nonaccrual after the end of their deferral periods. As a percentage of average loans, annualized net charge-offs increased to 0.26% for the quarter ended June 30, 2021 compared to 0.13% for the year ended December 31, 2020.

Comparison of Operating Results for the Quarters Ended June 30, 2021 and 2020

Net income for the quarter ended June 30, 2021 was $49.0 million, or $0.38 per diluted share, an increase of $55.2 million, from a net loss of $6.2 million, or ($0.05) per diluted share, for the quarter ended June 30, 2020. The increase in net income primarily resulted from a decrease in provision for credit losses of $51.8 million to no provision for credit losses for the quarter ended June 30, 2021 compared to provision expense of $51.8 million for the quarter ended June 30, 2020. Also contributing to the increase in net income was an increase in noninterest income of $19.2 million, or 54.1% and a decrease in noninterest expense of $2.8 million, or 3.2%. Partially offsetting these changes was a decrease in net interest income of $2.3 million, or 2.4%. Net income for the quarter ended June 30, 2021 represents annualized returns on average equity and average assets of 12.58% and 1.37%, respectively, compared to (1.63%) and (0.18%) for the same quarter last year. A further discussion of notable changes follows.

Interest Income

    Total interest income decreased $6.0 million, or 5.5%, to $102.6 million for the quarter ended June 30, 2021 from $108.5 million for the quarter ended June 30, 2020. This decrease is due to a decrease in the average yield earned on interest-earning assets to 3.10% for the quarter ended June 30, 2021 from 3.72% for the quarter ended June 30, 2020 due to decreases in market interest rates over the past year. Offsetting this decrease in average yield earned was an increase in the average balance of interest-earning assets by $1.520 billion, or 13.0%, to $13.252 billion for the quarter ended June 30, 2021 from $11.732 billion for the quarter ended June 30, 2020. This increase is due to growth across all interest-earning asset categories.

    Interest income on loans receivable decreased by $7.8 million, or 7.5%, to $95.3 million for the quarter ended June 30, 2021 compared to $103.0 million for the quarter ended June 30, 2020. This decrease in interest income is primarily due to a decrease in the average yield on loans receivable to 3.71% for the quarter ended June 30, 2021 from 4.06% for the quarter ended June 30, 2020, again due to the decrease in market interest rates as well as $270.0 million of PPP loans as of June 30, 2021 with coupon rates of 1.00%. Partially offsetting this decrease in the average yield earned was an increase in the average balance of loans receivable of $96.8 million, or 0.9%, to $10.297 billion for the quarter ended June 30, 2021 from $10.201 billion for the quarter ended June 30, 2020. Included in loan interest income for the current quarter is $2.5 million of accretion related to PPP fees, net of origination costs.

    Interest income on mortgage-backed securities increased by $1.6 million, or 40.7%, to $5.7 million for the quarter ended June 30, 2021 compared to $4.0 million for the quarter ended June 30, 2020. This increase is driven by an increase in the average balance of mortgage-backed securities of $1.042 billion, or 145.7%, to $1.756 billion for the quarter ended June 30, 2021 from $714.7 million for the quarter ended June 30, 2020. This increase in average balance was primarily a result of additional purchases utilizing excess cash from deposit growth during the past year. Offsetting this increase was a decrease in the average yield on mortgage-backed securities to 1.29% for the quarter ended June 30, 2021 from 2.26% for the quarter ended June 30, 2020 due to new purchases at lower market yields than our existing portfolio.

    Interest income on investment securities increased by $284,000, or 28.3%, for the quarter ended June 30, 2021 to $1.3 million from $1.0 million for the quarter ended June 30, 2020. This increase was due to an increase in the average balance of investment securities by $194.1 million, or 114.0%, to $364.4 million for the quarter ended June 30, 2021 from $170.3 million for the quarter ended June 30, 2020. The average balance of investment securities increased due to the utilization of excess funds from deposit growth. Partially offsetting this increase was a decrease in the average yield on investment securities which decreased to 1.41% for the

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quarter ended June 30, 2021 from 2.36% for the quarter ended June 30, 2020 due to new investment purchases at yields lower than existing portfolios.

    Dividends on FHLB stock decreased by $171,000, or 55.3%, to $138,000 for the quarter ended June 30, 2021 from $309,000 for the quarter ended June 30, 2020. This decrease was primarily due to the decrease in average yield on FHLB stock. The average yield decreased to 2.40% for the quarter ended June 30, 2021 from 5.60% for the quarter ended June 30, 2020 as the FHLB of Pittsburgh recently decreased yields on required stock holdings in reaction to lower market interest rates. Slightly offsetting this decrease was an increase in the average balance of FHLB stock by $0.9 million, or 4.1%. Required FHLB stock holdings fluctuate with, among other things, the utilization of our borrowing capacity as well as capital requirements established by the FHLB.

    Interest income on interest-earning deposits increased by $7,000, or 3.8%, to $192,000 for the quarter ended June 30, 2021 from $185,000 for the quarter ended June 30, 2020. The average balance of interest-earning deposits increased by $186.9 million to $810.7 million for the quarter ended June 30, 2021 from $623.9 million for the quarter ended June 30, 2020 due to excess liquidity from recent deposit inflows. This increase in average balance was offset by the decrease in the average yield on interest-earning deposits to 0.09% for the quarter ended June 30, 2021 from 0.12% for the quarter ended June 30, 2020.

Interest Expense

Interest expense decreased by $3.6 million, or 34.8%, to $6.8 million for the quarter ended June 30, 2021 from $10.5 million for the quarter ended June 30, 2020.  This decrease in interest expense was primarily due to the decline in the average cost of interest-bearing liabilities, which decreased to 0.29% for the quarter ended June 30, 2021 from 0.48% for the quarter ended June 30, 2020. This decrease resulted from decreases in the interest rate paid on deposits and junior subordinated debentures in response to decreases in market interest rates. Partially offsetting this decrease was an increase in the average balance of interest-bearing liabilities by $734.2 million, or 8.4%, to $9.512 billion for the quarter ended June 30, 2021 from $8.778 billion for the quarter ended June 30, 2020. This increase in average balance resulted from internal growth in deposits. In addition, on September 9, 2020, the Company issued $125 million of fixed-to-floating subordinated debt with an initial five-year fixed interest rate of 4.00%.

Net Interest Income

Net interest income decreased by $2.3 million, or 2.4%, to $95.7 million for the quarter ended June 30, 2021 from $98.1 million for the quarter ended June 30, 2020.  This decrease is attributable to the factors discussed above. Our interest rate spread decreased to 2.82% for the quarter ended June 30, 2021 from 3.24% for the quarter ended June 30, 2020 and our net interest margin decreased to 2.89% for the quarter ended June 30, 2021 from 3.34% for the quarter ended June 30, 2020 primarily due to declining interest-earning asset yields.

Provision for Credit Losses

    The provision for credit losses decreased by $51.8 million, or 100.0%, as the Company recorded no provisions for credit losses during the quarter ended June 30, 2021 compared to a provision expense of $51.8 million for the quarter ended June 30, 2020. The prior year second quarter was significantly impacted by the onset of COVID-19 and the uncertainty surrounding the possible negative effect on economic forecasts. As such, the outsized provision in the prior year was driven by the estimated increase in possible future loan losses due to COVID-19. The current period decrease was driven by continued improvements in economic forecasts compared to the uncertainty that existed last year in industries impacted by COVID-19.

    In determining the amount of the current period provision, we considered current and forecasted economic conditions, including but not limited to improvements in unemployment levels, expected economic growth, bankruptcy filings, and changes in real estate values and the impact of these factors on the quality of our loan portfolio and historical loss experience. We analyze the allowance for credit losses as described in the section entitled "Allowance for Credit Losses." The provision that is recorded is sufficient, in our judgment, to bring this reserve to a level that reflects the current expected lifetime losses in our loan portfolio relative to loan mix, a reasonable and supportable economic forecast period and historical loss experience at June 30, 2021.

Noninterest Income

Noninterest income increased by $19.2 million, or 54.1%, to $54.7 million for the quarter ended June 30, 2021 from $35.5 million for the quarter ended June 30, 2020. This increase was primarily due to a $25.3 million pre-tax gain on the sale of our insurance business offered through Northwest Insurance Services, which closed April 30, 2021. In addition, trust and other financial services income increased $2.6 million, or 54.2%, as a result of increases in both trust and brokerage advisory services. Partially offsetting these increases was a decrease in mortgage banking income of $8.2 million to $3.8 million for the quarter ended June 30, 2021 from $12.0 million for the quarter ended June 30, 2020 due to the impact of less favorable pricing in the secondary market.

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Additionally, insurance commission income decreased by $1.4 million, or 56.5%, due to the sale of the insurance business during the current quarter.

Noninterest Expense

Noninterest expense decreased by $2.8 million, or 3.2%, to $86.3 million for the quarter ended June 30, 2021 from $89.2 million for the quarter ended June 30, 2020.  This decrease was primarily due to a decrease of $9.0 million, or 93.5%, in merger related expenses due to expenses incurred in the prior year as a result of the acquisition of MutualFirst Financial, Inc. Also contributing to this decrease was a decrease of $6.4 million, or 81.9%, in other expenses primarily due to an elevated reserve for unfunded commitments during the second quarter of 2020 resulting from the estimated economic impact of COVID-19. Partially offsetting these decreases was an increase of $8.8 million, or 22.1%, in compensation and employee benefits to $48.9 million for the quarter ended June 30, 2021 from $40.0 million for the quarter ended June 30, 2020 primarily due to increases in health insurance and other benefit costs, regular merit expense and the addition of MutualBank employees and other strategic personnel. In addition, processing expenses increased by $3.5 million, or 29.7%, to $15.2 million for the quarter ended June 30, 2021 from $11.7 million for the quarter ended June 30, 2020 as we continue to invest in technology and infrastructure and as activity-driven utilization fees for ATM, check card, and online and mobile banking has increased. Professional services expense increased $1.4 million, or 49.8%, due to the utilization of third-party experts to assist with our digital strategy rollout.

Income Taxes

The provision for income taxes increased by $16.3 million to $15.1 million for the quarter ended June 30, 2021 from a tax benefit of $1.1 million for the quarter ended June 30, 2020. This increase in income tax expense is primarily the result of the $71.4 million increase in pretax income to $64.1 million for the quarter ended June 30, 2021 from a pretax loss of $7.3 million for the quarter ended June 30, 2020. We anticipate our effective tax rate to be between 22.0% and 24.0% for the year ending December 31, 2021.

Comparison of Operating Results for the Six Months Ended June 30, 2021 and 2020

Net income for the six months ended June 30, 2021 was $89.2 million, or $0.70 per diluted share, an increase of $87.5 million, from $1.7 million, or $0.02 per diluted share, for the six months ended June 30, 2020. The increase in net income resulted primarily from a decrease in provision for credit losses of $85.0 million, or 107.1%, as well as an increase in noninterest income of $23.2 million, or 36.5%, and an increase in net interest income of $10.9 million, or 5.9%. Partially offsetting these factors were an increase of $4.7 million, or 2.8%, in noninterest expense and an increase in income tax expense of $26.9 million. Net income for the six months ended June 30, 2021 represents annualized returns on average equity and average assets of 11.61% and 1.27%, respectively, compared to 0.24% and 0.03% for the six months ended June 30, 2020.  A further discussion of notable changes follows.

Interest Income

    Total interest income increased by $1.7 million, or 0.8%, to $210.6 million for the six months ended June 30, 2021 from $208.9 million for the six months ended June 30, 2020. This increase is the result of an increase in the average balance of interest-earning assets of $2.385 billion, or 22.3%, to $13.070 billion for the six months ended June 30, 2021 from $10.685 billion for the six months ended June 30, 2020 due primarily to internal growth as well as the MutualBank acquisition. Offsetting this increase was a decrease in the average yield earned on interest-earning assets to 3.23% for the six months ended June 30, 2021 from 3.93% for the six months ended June 30, 2020. This decrease in average yield is attributed to a decline in overall market interest rates.

Interest income on loans receivable decreased by $412,000, or 0.2%, to $197.6 million for the six months ended June 30, 2021 from $198.0 million for the six months ended June 30, 2020.  This decrease is attributed to a decrease in the average yield on loans receivable to 3.83% for the six months ended June 30, 2021 from 4.20% for the six months ended June 30, 2020 primarily as a result of the decrease in market interest rates as well as $270.0 million of PPP loans as of June 30, 2021 with coupon rates of 1.00%. Partially offsetting this decrease was an increase in the average balance of loans receivable of $864.2 million, or 9.1%, to $10.352 billion for the six months ended June 30, 2021 from $9.487 billion for the six months ended June 30, 2020. This increase is due to organic loan growth as well as the MutualBank acquisition. Included in loan interest income for the current period is $7.3 million of accretion related to PPP fees, net of origination costs.

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    Interest income on mortgage-backed securities increased by $1.7 million, or 20.3%, to $9.9 million for the six months ended June 30, 2021 from $8.2 million for the six months ended June 30, 2020. This increase is attributed to an increase in the average balance of mortgage-backed securities of $850.0 million, or 122.9%, to $1.542 billion for the six months ended June 30, 2021 from $691.6 million for the six months ended June 30, 2020. This increase is due primarily to the addition of the MutualBank portfolio and additional purchases utilizing excess cash from deposit growth during the past year. Partially offsetting this increase was a decrease in the average yield on mortgage-backed securities to 1.28% for the quarter ended June 30, 2021 from 2.38% for the quarter ended June 30, 2020. This decrease in yield was primarily due to new purchases and the assumption of mortgage-backed securities from MutualBank at lower market yields than our existing portfolio.

Interest income on investment securities increased by $660,000, or 35.9%, to $2.5 million for the six months ended June 30, 2021 from $1.8 million for the six months ended June 30, 2020. This increase is primarily attributable to an increase in the average balance of investment securities of $190.7 million, or 121.3%, to $348.0 million for the six months ended June 30, 2021 from $157.2 million for the six months ended June 30, 2020. The average balance of investments increased due to the utilization of excess funds from deposit growth. Partially offsetting this increase was a decrease in the average yield on investment securities to 1.43% for the six months ended June 30, 2021 from 2.34% for the six months ended June 30, 2020. 

Dividends on FHLB stock decreased by $317,000, or 55.5%, to $254,000 for the six months ended June 30, 2021 from $571,000 for the six months ended June 30, 2020. This decrease was due to a decrease in the average yield on FHLB stock to 2.27% for the six months ended June 30, 2021 from 6.02% for the six months ended June 30, 2020 as the FHLB of Pittsburgh recently decreased yields on required stock holdings due to lower market interest rates. Partially offsetting this decrease was an increase of $3.4 million, or 17.8%, in the average balance of FHLB stock to $22.5 million for the six months ended June 30, 2021 from $19.1 million for the six months ended June 30, 2020. Required FHLB stock holdings fluctuate with, among other things, the utilization of our borrowing capacity as well as capital requirements established by the FHLB.

Interest income on interest-earning deposits increased by $55,000, or 17.2%, to $375,000 for the six months ended June 30, 2021 from $320,000 for the six months ended June 30, 2020.  This increase is attributable to an increase in the average balance of interest-earning deposits, which increased by $476.6 million, to $805.9 million for the six months ended June 30, 2021 from $329.3 million for the six months ended June 30, 2020 due to excess liquidity from steady deposit inflows. Partially offsetting this increase was a decrease in the average yield on interest-earning deposits to 0.09% for the six months ended June 30, 2021 from 0.19% for the six months ended June 30, 2020, as a result of decreases in the targeted federal funds rate by the Federal Reserve.

Interest Expense

Interest expense decreased by $9.2 million, or 39.1%, to $14.4 million for the six months ended June 30, 2021 from $23.6 million for the six months ended June 30, 2020. This decrease in interest expense was due to a decrease in the average cost of interest-bearing liabilities to 0.31% for the six months ended June 30, 2021 from 0.59% for the six months ended June 30, 2020. This decrease resulted from decreases in the interest rate paid on deposits and junior subordinated debentures in response to decreases in market interest rates. Partially offsetting this decrease was an increase in the average balance of interest-bearing liabilities which increased by $1.389 billion, or 17.2%, to $9.445 billion for the six months ended June 30, 2021 from $8.056 billion for the six months ended June 30, 2020. This increase resulted from both internal growth in deposits as well as the addition of $1.617 billion of deposits from the acquisition of MutualBank. In addition, on September 9, 2020, the Company issued $125 million of fixed-to-floating subordinated debt with an initial five year fixed interest rate of 4.00%.

Net Interest Income

Net interest income increased by $10.9 million, or 5.9%, to $196.2 million for the six months ended June 30, 2021 from $185.3 million for the six months ended June 30, 2020.  This increase is attributable to the factors discussed above. Despite the overall increase in net interest income due primarily to balance sheet growth and the accretion of net PPP fees, our interest rate spread and net interest margin both decreased. Our interest rate spread decreased to 2.92% for the six months ended June 30, 2021 from 3.34% for the six months ended June 30, 2020 and our net interest margin decreased to 3.00% for the six months ended June 30, 2021 from 3.47% for the six months ended June 30, 2020. These decreases were primarily due to declining interest-earning asset yields. Contributing to the decline in asset yields was an increase in average cash balances of $476.6 million, earning just 0.09%, due to deposit growth associated with the PPP loan funds and consumer stimulus checks.

Provision for Credit Losses

    The provision for credit losses decreased by $85.0 million to a credit or release of reserve for credit losses of $5.6 million for the six months ended June 30, 2021 from a provision expense of $79.4 million for the six months ended June 30, 2020. This decrease was primarily due to continued improvements in economic forecasts compared to the uncertainty that existed last year in industries impacted by COVID-19.

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Total nonaccrual loans increased by $91.3 million to $206.8 million, or 2.01% of total loans, at June 30, 2021 from $115.5 million, or 1.06% of total loans at June 30, 2020. Annualized net charge-offs to average loans decreased to 0.22% for the six months ended June 30, 2021 from 0.35% for the six months ended June 30, 2020.

In determining the amount of the current period provision, we considered current economic conditions, including but not limited to unemployment levels, bankruptcy filings, and changes in real estate values and the impact of these factors on the quality of our loan portfolio and historical loss experience.  We analyze the allowance for credit losses as described in the section entitled "Allowance for Credit Losses."  The provision that is recorded is sufficient, in our judgment, to bring this reserve to a level that reflects the current expected lifetime losses in our loan portfolio relative to loan mix, a reasonable and supportable economic forecast period and historical loss experience at June 30, 2021.

Noninterest Income

Noninterest income increased by $23.2 million, or 36.5%, to $86.7 million for the six months ended June 30, 2021 from $63.5 million for the six months ended June 30, 2020. This increase was primarily due to a $25.3 million pre-tax gain on the sale of our insurance business offered through Northwest Insurance Services, which closed April 30, 2021. In addition, trust and other financial services income increased by $4.1 million, or 41.7%, to $13.9 million for the six months ended June 30, 2021 from $9.8 million for the six months ended June 30, 2020 as a result of increases in both trust and brokerage advisory services. Partially offsetting this increase was a $3.4 million, or 25.6%, decrease in mortgage banking income due to the impact of a less favorable secondary market pricing. Additionally, service charges and fees decreased by $3.0 million, or 10.8%, due to the impact of the Durbin amendment on our interchange fees which came into effect in the second half of 2020.

Noninterest Expense

Noninterest expense increased by $4.7 million, or 2.8%, to $172.5 million for the six months ended June 30, 2021, from $167.8 million for the six months ended June 30, 2020.  This increase was primarily due to the increase in compensation and employee benefits expense of $13.3 million, or 16.1%, to $96.1 million for the six months ended June 30, 2021 from $82.8 million for the six months ended June 30, 2020 primarily due to increases in health insurance and other benefit costs, regular merit expense and the addition of MutualBank employees and other strategic personnel. Processing expenses increased by $5.8 million, or 25.3%, to $28.6 million for the six months ended June 30, 2021 from $22.8 million for the six months ended June 30, 2020 as we continue to invest in technology and infrastructure and as activity-driven utilization fees for ATM, check card and online and mobile banking has increased. Additionally, professional service expense increased by $3.2 million, or 56.3%, to $8.8 million for the six months ended June 30, 2021 from $5.6 million for the six months ended June 30, 2020 due primarily to utilization of third-party experts to assist with our digital strategy rollout. Partially offsetting this increase, merger, asset disposition and restructuring expense decreased $11.5 million, or 94.7%, due to expenses incurred in the prior period as part of the MutualBank acquisition. Additionally, other expenses decreased by $8.0 million, or 62.5%, primarily due to the decrease in the reserve for unfunded commitments. The prior year was significantly impacted by the onset of COVID-19 and the uncertainty surrounding the possible negative effect on economic forecasts.

Income Taxes

The provision for income taxes increased by $26.9 million, to $26.7 million for the six months ended June 30, 2021 from a tax benefit of $122,000 for the six months ended June 30, 2020. This increase was primarily due to the increase in income before tax of $114.3 million. Our effective tax rate for the quarter ended June 30, 2021 was 23.1% compared to (7.5%) for the quarter ended June 30, 2020. We anticipate our effective tax rate to be between 22.0% and 24.0% for the year ending December 31, 2021.

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Average Balance Sheet

(in thousands)

    The following table sets forth certain information relating to the Company’s average balance sheet and reflects the average yield on interest-earning assets and average cost of interest-bearing liabilities for the periods indicated.  Such yields and costs are derived by dividing income or expense by the average balance of assets or liabilities, respectively, for the periods presented.  Average balances are calculated using daily averages. 

	Quarter ended June 30,
	2021					2020
	Average balance		Interest	Avg. yield/ cost (h)		Average balance		Interest	Avg. yield/ cost (h)
Assets
Interest-earning assets:
Residential mortgage loans	$	2,935,034	25,609	3.49	%	$	3,092,392	29,019	3.75	%
Home equity loans	1,380,794		12,232	3.55	%	1,415,091		13,806	3.92	%
Consumer loans	1,589,739		14,555	3.67	%	1,375,130		14,993	4.39	%
Commercial real estate loans	3,257,810		33,349	4.05	%	3,156,749		34,595	4.34	%
Commercial loans	1,133,969		9,978	3.48	%	1,161,228		11,269	3.84	%
Loans receivable (a) (b) (d) (includes FTE adjustments of $468 and $669, respectively)	10,297,346		95,723	3.73	%	10,200,590		103,682	4.09	%
Mortgage-backed securities (c)	1,756,227		5,680	1.29	%	714,657		4,038	2.26	%
Investment securities (c) (d) (includes FTE adjustments of $179 and $241, respectively)	364,414		1,466	1.61	%	170,309		1,244	2.92	%
FHLB stock, at cost	23,107		138	2.40	%	22,192		309	5.60	%
Other interest-earning deposits	810,741		192	0.09	%	623,870		185	0.12	%
Total interest-earning assets (includes FTE adjustments of $647 and $910, respectively)	13,251,835		103,199	3.12	%	11,731,618		109,458	3.75	%
Noninterest-earning assets (e)	1,104,924					1,858,513
Total assets	$	14,356,759				$	13,590,131
Liabilities and shareholders’ equity
Interest-bearing liabilities:
Savings deposits	$	2,255,578	590	0.10	%	$	1,884,202	648	0.14	%
Interest-bearing demand deposits	2,840,949		407	0.06	%	2,428,060		812	0.13	%
Money market deposit accounts	2,537,629		621	0.10	%	2,204,810		1,600	0.29	%
Time deposits	1,493,947		3,155	0.85	%	1,761,260		6,276	1.43	%
Borrowed funds (f)	131,240		150	0.46	%	371,700		296	0.32	%
Subordinated debentures	123,443		1,264	4.11	%	—		—	—	%
Junior subordinated debentures	128,882		636	1.95	%	127,472		837	2.60	%
Total interest-bearing liabilities	9,511,668		6,823	0.29	%	8,777,504		10,469	0.48	%
Noninterest-bearing demand deposits (g)	3,036,202					2,401,368
Noninterest-bearing liabilities	247,930					882,391
Total liabilities	12,795,800					12,061,263
Shareholders’ equity	1,560,959					1,528,868
Total liabilities and shareholders’ equity	$	14,356,759				$	13,590,131
Net interest income/Interest rate spread			96,376	2.84	%			98,989	3.27	%
Net interest-earning assets/Net interest margin	$	3,740,167		2.91	%	$	2,954,114		3.38	%
Ratio of interest-earning assets to interest-bearing liabilities	1.39X					1.34X

(a)Average gross loans includes loans held as available-for-sale and loans placed on nonaccrual status.

(b)Interest income includes accretion/amortization of deferred loan fees/expenses, which were not material.

(c)Average balances do not include the effect of unrealized gains or losses on securities held as available-for-sale.

(d)Interest income on tax-free investment securities and tax-free loans are presented on a fully taxable equivalent ("FTE") basis.

(e)Average balances include the effect of unrealized gains or losses on securities held as available-for-sale.

(f)Average balances include FHLB borrowings and collateralized borrowings.

(g)Average cost of deposits were 0.16% and 0.35%, respectively.

(h)Annualized. Shown on a FTE basis. The FTE basis adjusts for the tax benefit of income on certain tax exempt loans and investments using the federal statutory rate applicable to each period presented. We believe this measure to be the preferred industry measurement of net interest income and provides relevant comparison between taxable and non-taxable amounts. GAAP basis yields were: loans — 3.71% and 4.06%, respectively; investment securities — 1.41% and 2.36%, respectively; interest-earning assets — 3.10% and 3.72%, respectively. GAAP basis net interest rate spreads were 2.82% and 3.24%, respectively; and GAAP basis net interest margins were 2.89% and 3.34%, respectively.

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Rate/Volume Analysis

(in thousands)

The following table represents the extent to which changes in interest rates and changes in the volume of interest-earning assets and interest-bearing liabilities have affected interest income and interest expense during the periods indicated.  Information is provided in each category with respect to (i) changes attributable to changes in volume (changes in volume multiplied by prior rate), (ii) changes attributable to changes in rate (changes in rate multiplied by prior volume), and (iii) net change.  Changes that cannot be attributed to either rate or volume have been allocated to both rate and volume.

	For the quarter ended June 30, 2021 vs. 2020
	Increase/(decrease) due to			Total  increase/(decrease)
	Rate		Volume
Interest-earning assets:
Loans receivable	$	(9,142)	1,183	(7,959)
Mortgage-backed securities	(1,727)		3,369	1,642
Investment securities	(559)		781	222
FHLB stock, at cost	(178)		7	(171)
Other interest-earning deposits	(37)		44	7
Total interest-earning assets	(11,643)		5,384	(6,259)
Interest-bearing liabilities:
Savings deposits	(157)		99	(58)
Interest-bearing demand deposits	(466)		61	(405)
Money market deposit accounts	(1,065)		86	(979)
Time deposits	(2,572)		(549)	(3,121)
Borrowed funds	128		(274)	(146)
Subordinated debt	—		1,264	1,264
Junior subordinated debentures	(208)		7	(201)
Total interest-bearing liabilities	(4,340)		694	(3,646)
Net change in net interest income	$	(7,303)	4,690	(2,613)

57

Average Balance Sheet

(in thousands)

    The following table sets forth certain information relating to the Company’s average balance sheet and reflects the average yield on interest-earning assets and average cost of interest-bearing liabilities for the periods indicated.  Such yields and costs are derived by dividing income or expense by the average balance of assets or liabilities, respectively, for the periods presented.  Average balances are calculated using daily averages.

	Six months ended June 30,
	2021					2020
	Average balance		Interest	Avg. yield/ cost (h)		Average balance		Interest	Avg. yield/ cost (h)
Assets
Interest-earning assets:
Residential mortgage loans	$	2,971,037	51,975	3.50	%	$	2,969,096	57,081	3.85	%
Home equity loans	1,406,260		25,046	3.57	%	1,380,076		28,607	4.17	%
Consumer loans	1,526,861		29,121	3.82	%	1,249,233		27,153	4.37	%
Commercial real estate loans	3,285,696		71,820	4.32	%	2,952,084		66,032	4.42	%
Commercial loans	1,161,736		20,543	3.50	%	936,924		20,124	4.25	%
Loans receivable (a) (b) (d) (includes FTE adjustments of $932 and $1,011, respectively)	10,351,590		198,505	3.85	%	9,487,413		198,997	4.22	%
Mortgage-backed securities (c)	1,541,585		9,880	1.28	%	691,564		8,213	2.38	%
Investment securities (c) (d) (includes FTE adjustments of $351 and $289, respectively)	347,977		2,847	1.64	%	157,231		2,125	2.70	%
FHLB stock, at cost	22,462		254	2.27	%	19,062		571	6.02	%
Other interest-earning deposits	805,930		375	0.09	%	329,284		320	0.19	%
Total interest-earning assets (includes FTE adjustments of $1,283 and $1,300, respectively)	13,069,544		211,861	3.25	%	10,684,554		210,226	3.96	%
Noninterest-earning assets (e)	1,103,734					1,409,247
Total assets	$	14,173,278				$	12,093,801
Liabilities and shareholders’ equity
Interest-bearing liabilities:
Savings deposits	$	2,187,184	1,215	0.11	%	$	1,747,656	1,375	0.16	%
Interest-bearing demand deposits	2,812,348		836	0.06	%	2,171,970		2,119	0.20	%
Money market deposit accounts	2,517,673		1,278	0.10	%	2,061,226		4,688	0.46	%
Time deposits	1,538,489		6,959	0.91	%	1,645,077		12,557	1.54	%
Borrowed funds (f)	137,488		303	0.44	%	305,910		1,005	0.66	%
Subordinated debentures	123,400		2,522	4.10	%	—		—	—	%
Junior subordinated debentures	128,850		1,278	1.96	%	124,638		1,875	2.98	%
Total interest-bearing liabilities	9,445,432		14,391	0.31	%	8,056,477		23,619	0.59	%
Noninterest-bearing demand deposits (g)	2,921,343					2,022,177
Noninterest-bearing liabilities	256,748					575,658
Total liabilities	12,623,523					10,654,312
Shareholders’ equity	1,549,755					1,439,489
Total liabilities and shareholders’ equity	$	14,173,278				$	12,093,801
Net interest income/Interest rate spread			197,470	2.94	%			186,607	3.37	%
Net interest-earning assets/Net interest margin	$	3,624,112		3.02	%	$	2,628,077		3.49	%
Ratio of interest-earning assets to interest-bearing liabilities	1.38X					1.33X

(a)Average gross loans includes loans held as available-for-sale and loans placed on nonaccrual status.

(b)Interest income includes accretion/amortization of deferred loan fees/expenses, which were not material.

(c)Average balances do not include the effect of unrealized gains or losses on securities held as available-for-sale.

(d)Interest income on tax-free investment securities and tax-free loans are presented on a fully taxable equivalent ("FTE") basis.

(e)Average balances include the effect of unrealized gains or losses on securities held as available-for-sale.

(f)Average balances include FHLB borrowings and collateralized borrowings.

(g)Average cost of deposits were 0.17% and 0.43%, respectively.

(h)Annualized. Shown on a FTE basis. The FTE basis adjusts for the tax benefit of income on certain tax exempt loans and investments using the federal statutory rate applicable to each period presented. We believe this measure to be the preferred industry measurement of net interest income and provides relevant comparison between taxable and non-taxable amounts. GAAP basis yields were: loans — 3.83% and 4.20%, respectively; investment securities — 1.43% and 2.34%, respectively; interest-earning assets — 3.23% and 3.93%, respectively. GAAP basis net interest rate spreads were 2.92% and 3.34%, respectively; and GAAP basis net interest margins were 3.00% and 3.47%, respectively.

58

Rate/Volume Analysis

(in thousands)

The following table represents the extent to which changes in interest rates and changes in the volume of interest-earning assets and interest-bearing liabilities have affected interest income and interest expense during the periods indicated.  Information is provided in each category with respect to (i) changes attributable to changes in volume (changes in volume multiplied by prior rate), (ii) changes attributable to changes in rate (changes in rate multiplied by prior volume), and (iii) net change.  Changes that cannot be attributed to either rate or volume have been allocated to both rate and volume.  

	For the six months ended June 30, 2021 vs. 2020
	Increase/(decrease) due to			Total increase/(decrease)
	Rate		Volume
Interest-earning assets:
Loans receivable	$	(17,561)	17,069	(492)
Mortgage-backed securities	(3,781)		5,448	1,667
Investment securities	(839)		1,561	722
FHLB stock, at cost	(358)		41	(317)
Other interest-earning deposits	(167)		222	55
Total interest-earning assets	(22,706)		24,341	1,635
Interest-bearing liabilities:
Savings deposits	(408)		248	(160)
Interest-bearing demand deposits	(1,479)		196	(1,283)
Money market deposit accounts	(3,653)		243	(3,410)
Time deposits	(5,151)		(447)	(5,598)
Borrowed funds	(333)		(369)	(702)
Subordinated debt	—		2,522	2,522
Junior subordinated debentures	(639)		42	(597)
Total interest-bearing liabilities	(11,663)		2,435	(9,228)
Net change in net interest income	$	(11,043)	21,906	10,863

59

Item 3.        QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

As the holding company for a savings bank, one of our primary market risks is interest rate risk.  Interest rate risk is the sensitivity of net interest income to variations in interest rates over a specified time period.  The sensitivity results from differences in the time periods in which interest rate sensitive assets and liabilities mature or re-price.  We attempt to control interest rate risk by matching, within acceptable limits, the re-pricing periods of assets and liabilities.  We have attempted to limit our exposure to interest sensitivity by increasing core deposits, enticing customers to extend certificates of deposit maturities, borrowing funds with fixed-rates and longer maturities and by shortening the maturities of our assets by emphasizing the origination of more short-term fixed rate loans and adjustable rate loans. We also have the ability to sell a portion of the long-term, fixed-rate mortgage loans that we originate.  In addition, we purchase shorter term or adjustable-rate investment securities and mortgage-backed securities.

We have an Asset/Liability Committee consisting of members of management which meets monthly to review market interest rates, economic conditions, the pricing of interest-earning assets and interest-bearing liabilities and the balance sheet structure.  On a quarterly basis, this Committee also reviews the interest rate risk position and cash flow projections.

The Board of Directors has a Risk Management Committee which meets quarterly and reviews interest rate risk and trends, our interest sensitivity position, the liquidity position and the market risk inherent in the investment portfolio.

In an effort to assess interest rate risk and market risk, we utilize a simulation model to determine the effect of immediate incremental increases and decreases in interest rates on net income and the market value of equity.  Certain assumptions are made regarding loan prepayments and decay rates of savings and interest-bearing demand accounts.  Because it is difficult to accurately project the market reaction of depositors and borrowers, the effect of actual changes in interest rates on these assumptions may differ from simulated results.  We have established the following guidelines for assessing interest rate risk:

Net interest income simulation.  Given a parallel shift of 100 basis points (“bps”), 200 bps and 300 bps in interest rates, the estimated net income may not decrease by more than 5%, 10% and 15%, respectively, within a one-year period.

     Net income simulation.  Given a parallel shift of 100 bps, 200 bps and 300 bps in interest rates, the estimated net income may not decrease by more than 10%, 20% and 30%, respectively, within a one-year period.

Market value of equity simulation.  The market value of equity is the present value of assets and liabilities.  Given a parallel shift of 100 bps, 200 bps and 300 bps in interest rates, the market value of equity may not decrease by more than 15%, 30% and 35%, respectively, from the computed economic value at current interest rate levels.

The following table illustrates the simulated impact of a 100 bps, 200 bps or 300 bps upward or a 100 bps downward movement in interest rates on net income, return on average equity, earnings per share and market value of equity. This analysis was prepared assuming that interest-earning asset and interest-bearing liability levels at June 30, 2021 remain constant. The impact of the rate movements was computed by simulating the effect of an immediate and sustained shift in interest rates over a twelve-month period from June 30, 2021 levels.

	Increase									Decrease
Parallel shift in interest rates over the next 12 months	100 bps			200 bps			300 bps			100 bps
Projected percentage increase/(decrease) in net interest income	1.2		%	1.3		%	1.1		%	(3.2		%)
Projected percentage increase/(decrease) in net income	3.5		%	4.0		%	3.6		%	(9.0		%)
Projected increase/(decrease) in return on average equity	3.3		%	3.8		%	3.5		%	(8.8		%)
Projected increase/(decrease) in earnings per share	$	0.03		$	0.03		$	0.03		$	(0.08)
Projected percentage decrease in market value of equity	(0.8		%)	(6.5		%)	(13.3		%)	(10.5		%)

    The figures included in the table above represent projections that were computed based upon certain assumptions including prepayment rates and decay rates. These assumptions are inherently uncertain and, as a result, cannot precisely predict the impact of changes in interest rates. Actual results may differ significantly due to timing, magnitude and frequency of interest rate changes and changes in market conditions, and actions that may be taken by management in response to interest rate changes.

60

Item 4.        CONTROLS AND PROCEDURES

Under the supervision of and with the participation of management, including the Principal Executive Officer and Principal Financial Officer, we evaluated the effectiveness of the design and operation of the Company's disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) as of the end of the period covered by this quarterly report (the “Evaluation Date”).  Based upon that evaluation, the Principal Executive Officer and Principal Financial Officer concluded that, as of the Evaluation Date, these disclosure controls and procedures were effective.

There were no changes in the internal controls over financial reporting during the period covered by this report or in other factors that have materially affected, or are reasonably likely to materially affect the internal controls over financial reporting.

PART II.             OTHER INFORMATION

Item 1.        LEGAL PROCEEDINGS

We are subject to a number of asserted and unasserted claims encountered in the normal course of business.  We believe that any additional liability, other than that which has already been accrued, that may result from such potential litigation will not have a material adverse effect on the financial statements.  However, we cannot presently determine whether or not any claims against us will have a material adverse effect on our results of operations in any future reporting period. Refer to Note 11.

Item 1A.    RISK FACTORS

    Except as previously disclosed, there have been no material updates or additions to the risk factors previously disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 as filed with the Securities and Exchange Commission. Additional risks not presently known to us, or that we currently deem immaterial, may also adversely affect our business, financial condition or results of operations.

61

Item 2.        UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

a)       Not applicable.

b)       Not applicable.

c)    On December 13, 2012, the Board of Directors approved a program that authorizes the repurchase of approximately 5,000,000 shares of common stock. This program does not have an expiration date. During the quarter ended June 30, 2021, we repurchased 34,460 shares and there are a maximum of 3,686,250 remaining shares that can be purchased under the current repurchase program.

Month	Number of shares purchased	Average price paid per share		Total number of shares purchased as part of a publicly announced repurchase plan	Maximum number of shares yet to be purchased under the plan
April	—	$	—	—	3,720,710
May	—	—		—	3,720,710
June	34,460	13.51		34,460	3,686,250
	34,460

Item 3.        DEFAULTS UPON SENIOR SECURITIES

Not applicable.

Item 4.        MINE SAFETY DISCLOSURES

Not applicable.

Item 5.        OTHER INFORMATION

Not applicable.

62

Item 6.        EXHIBITS

31.1	Certification of the Chief Executive Officer pursuant to Rule 13a-15 or 15d-15 of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of the Chief Financial Officer pursuant to Rule 13a-15 or 15d-15 of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
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101.LAB	XBRL Taxonomy Extension Label Linkbase.
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104	The cover page of this Quarterly Report on Form 10-Q, formatted in inline XBRL.

63

Signature

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

NORTHWEST BANCSHARES, INC.
(Registrant)
Date:	August 5, 2021	By:	/s/ Ronald J. Seiffert
			Ronald J. Seiffert
			Chairman, President and Chief Executive Officer
			(Duly Authorized Officer)
Date:	August 5, 2021	By:	/s/ Jeffrey R. White
			Jeffrey R. White
			Senior Vice President and Controller
			(Principal Accounting Officer)

64

EX-31.1

Exhibit 31.1

Certification

I, Ronald J. Seiffert, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Northwest Bancshares, Inc.;

2. Based on my knowledge, this report does not contain any untrue statements 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.

August 5, 2021	/s/ Ronald J. Seiffert
Date	Ronald J. Seiffert
	Chairmen, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification

I, William W. Harvey, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Northwest Bancshares, Inc.;

2. Based on my knowledge, this report does not contain any untrue statements 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.

August 5, 2021	/s/ William W. Harvey, Jr.
Date	William W. Harvey, Jr.
	Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification by the Chief Executive Officer and Chief Financial Officer

The undersigned officers of Northwest Bancshares, Inc. (the “Company”) hereby certify that, to the best of their knowledge:

1. The Company’s quarterly report on Form 10-Q for the period ended June 30, 2021 (the “Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

August 5, 2021	/s/ Ronald J. Seiffert
Date	Ronald J. Seiffert
	Chairman, President and Chief Executive Officer
August 5, 2021	/s/ William W. Harvey, Jr.
Date	William W. Harvey, Jr.
	Chief Financial Officer

The purpose of this statement is solely to comply with Title 18, Chapter 63, Section 1350 of the United States Code, as amended by Section 906 of the Sarbanes-Oxley Act of 2002.

A signed original of this written statement required by Section 906 has been provided to Northwest Bancshares, Inc. and will be retained by Northwest Bancshares, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover - shares	6 Months Ended
	Jun. 30, 2021	Jul. 31, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-34582
Entity Registrant Name	NORTHWEST BANCSHARES, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	27-0950358
Entity Address, Address Line One	100 Liberty Street
Entity Address, City or Town	Warren,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	16365
City Area Code	814
Local Phone Number	726-2140
Entity Shell Company	false
Title of 12(b) Security	Common Stock, 0.01 Par Value
Trading Symbol	NWBI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		126,887,881
Entity Central Index Key	0001471265
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2

XML

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 857,152	$ 736,277
Marketable securities available-for-sale (amortized cost of $1,593,813 and $1,375,685, respectively)	1,599,024	1,398,941
Marketable securities held-to-maturity (fair value of $632,620 and $179,666, respectively)	639,424	178,887
Total cash and cash equivalents and marketable securities	3,095,600	2,314,105
Loans held-for-sale	29,055	58,786
Loans held for investment	10,280,925	10,522,063
Allowance for credit losses	(117,330)	(134,427)
Loans receivable, net	10,192,650	10,446,422
FHLB stock, at cost	23,287	21,748
Accrued interest receivable	27,585	35,554
Real estate owned, net	1,353	2,232
Premises and equipment, net	156,076	161,538
Bank-owned life insurance	253,539	253,951
Goodwill	380,997	382,279
Other intangible assets, net	15,362	19,936
Other assets	151,607	168,503
Total assets	14,298,056	13,806,268
Liabilities:
Noninterest-bearing demand deposits	3,002,632	2,716,224
Interest-bearing demand deposits	2,824,219	2,755,950
Money market deposit accounts	2,538,607	2,437,539
Savings deposits	2,262,152	2,047,424
Time deposits	1,463,098	1,642,096
Total deposits	12,090,708	11,599,233
Borrowed funds	257,377	283,044
Junior subordinated debentures	128,924	128,794
Advances by borrowers for taxes and insurance	53,608	45,230
Accrued interest payable	1,820	2,054
Other liabilities	190,258	209,210
Total liabilities	12,722,695	12,267,565
Shareholders’ equity:
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	0	0
Common stock, $0.01 par value: 500,000,000 shares authorized, 127,907,885 and 127,019,452 shares issued and outstanding, respectively	1,279	1,270
Additional paid-in capital	1,025,174	1,015,502
Retained earnings	595,100	555,480
Accumulated other comprehensive loss	(46,192)	(33,549)
Total shareholders’ equity	1,575,361	1,538,703
Total liabilities and shareholders’ equity	$ 14,298,056	$ 13,806,268

XML

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Marketable securities available-for-sale, amortized cost	$ 1,593,813	$ 1,375,685
Fair value	$ 632,620	$ 179,666
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	127,907,885	127,019,452
Common stock, shares outstanding (in shares)	127,907,885	127,019,452

XML

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income:
Loans receivable	$ 95,255	$ 103,012	$ 197,573	$ 197,985
Mortgage-backed securities	5,680	4,038	9,880	8,213
Taxable investment securities	693	439	1,327	1,087
Tax-free investment securities	594	564	1,169	749
FHLB stock dividends	138	309	254	571
Interest-earning deposits	192	185	375	320
Total interest income	102,552	108,547	210,578	208,925
Interest expense:
Deposits	4,773	9,336	10,287	20,739
Borrowed funds	2,050	1,133	4,104	2,880
Total interest expense	6,823	10,469	14,391	23,619
Net interest income	95,729	98,078	196,187	185,306
Provision for credit losses	0	51,750	(5,620)	79,387
Net interest income after provision for credit losses	95,729	46,328	201,807	105,919
Noninterest income:
Gain/(loss) on sale of investments	(105)	(8)	(126)	173
Gain on sale of loans	0	0	0	1,302
Service charges and fees	12,744	13,069	25,138	28,185
Trust and other financial services income	7,435	4,823	13,919	9,824
Insurance commission income	1,043	2,395	3,589	4,767
Gain/(loss) on real estate owned, net	166	(97)	124	(188)
Income from bank-owned life insurance	1,639	1,248	3,375	2,284
Mortgage banking income	3,811	12,022	9,831	13,216
Gain on sale of insurance business	25,327	0	25,327	0
Other operating income	2,648	2,044	5,484	3,909
Total noninterest income	54,708	35,496	86,661	63,472
Noninterest expense:
Compensation and employee benefits	48,894	40,049	96,133	82,795
Premises and occupancy costs	7,410	7,195	16,224	14,666
Office operations	3,317	3,711	6,482	7,093
Collections expense	303	644	919	1,118
Processing expenses	15,151	11,680	28,607	22,822
Marketing expenses	2,101	2,047	4,081	3,554
Federal deposit insurance premiums	1,353	1,618	2,660	1,618
Professional services	4,231	2,825	8,813	5,637
Amortization of intangible assets	1,433	1,760	3,027	3,411
Real estate owned expense	85	89	160	184
Merger, asset disposition and restructuring expense	632	9,679	641	12,137
Other expenses	1,422	7,866	4,776	12,739
Total noninterest expense	86,332	89,163	172,523	167,774
Income/(loss) before income taxes	64,105	(7,339)	115,945	1,617
Federal and state income taxes expense/(benefit)	15,138	(1,139)	26,741	(122)
Net income/(loss)	$ 48,967	$ (6,200)	$ 89,204	$ 1,739
Basic earnings per share (in dollars per share)	$ 0.38	$ (0.05)	$ 0.70	$ 0.02
Diluted earnings per share (in dollars per share)	$ 0.38	$ (0.05)	$ 0.70	$ 0.02

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 48,967	$ (6,200)	$ 89,204	$ 1,739
Net unrealized holding gains/(losses) on marketable securities:
Unrealized holding gains/(losses), net of tax of $(1,245), $(1,902), $4,736, and $(5,179) respectively	4,322	4,790	(13,099)	12,947
Reclassification adjustment for (gains)/losses included in net income, net of tax of $43, $13, $65, and $(1) respectively	(136)	(35)	(211)	2
Net unrealized holding gains/(losses) on marketable securities	4,186	4,755	(13,310)	12,949
Change in fair value of interest rate swaps, net of tax of $0, $47, $0, and $209 respectively	0	(537)	0	(946)
Defined benefit plan:
Actuarial reclassification adjustments for prior period service costs and actuarial losses included in net income, net of tax of $(128), $(99), $(258), and $(198) respectively	334	249	667	498
Other comprehensive income/(loss)	4,520	4,467	(12,643)	12,501
Total comprehensive income	$ 53,487	$ (1,733)	$ 76,561	$ 14,240

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Unrealized holding gains (losses), tax	$ (1,245)	$ (1,902)	$ 4,736	$ (5,179)
Reclassification adjustment for gains included in net income, tax	43	13	65	(1)
Unrealized holding losses on interest rate swaps, tax	0	47	0	209
Reclassification adjustments for prior period service costs and net losses included in net income, tax	$ (128)	$ (99)	$ (258)	$ (198)

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common stock	Additional paid-in capital	Retained earnings	Retained earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated other comprehensive income/(loss)
Balance beginning of the period (in shares) at Dec. 31, 2019			106,859,088
Balance beginning of the period at Dec. 31, 2019	$ 1,353,285	$ (9,649)	$ 1,069	$ 805,750	$ 583,407	$ (9,649)	$ (36,941)
Comprehensive income:
Net income	1,739				1,739
Other comprehensive income (loss) , net	12,501						12,501
Total comprehensive income	14,240				1,739		12,501
Acquisition of MutualFirst Financial, Inc. (in shares)			20,658,957
Acquisition of MutualFirst Financial, Inc.	213,406		$ 206	213,200
Exercise of stock options (in shares)			87,305
Exercise of stock options	1,006		$ 1	1,005
Stock-based compensation expense (in shares)			282,691
Stock-based compensation expense	3,026		$ 3	3,023
Stock-based compensation forfeited (in shares)			(49,641)
Stock-based compensation forfeited	1		$ (1)
Other	105			105
Dividends paid	(44,569)				(44,569)
Balance end of period (in shares) at Jun. 30, 2020			127,838,400
Balance end of the period at Jun. 30, 2020	1,530,849		$ 1,278	1,023,083	530,928		(24,440)
Balance beginning of the period (in shares) at Mar. 31, 2020			106,933,483
Balance beginning of the period at Mar. 31, 2020	1,341,792		$ 1,069	808,250	561,380		(28,907)
Comprehensive income:
Net income	(6,200)				(6,200)
Other comprehensive income (loss) , net	4,467						4,467
Total comprehensive income	(1,733)				(6,200)		4,467
Acquisition of MutualFirst Financial, Inc. (in shares)			20,658,957
Acquisition of MutualFirst Financial, Inc.	213,406		$ 206	213,200
Stock-based compensation expense (in shares)			282,691
Stock-based compensation expense	1,531		$ 3	1,528
Stock-based compensation forfeited (in shares)			(36,731)
Other	105			105
Dividends paid	(24,252)				(24,252)
Balance end of period (in shares) at Jun. 30, 2020			127,838,400
Balance end of the period at Jun. 30, 2020	1,530,849		$ 1,278	1,023,083	530,928		(24,440)
Balance beginning of the period (in shares) at Dec. 31, 2020			127,019,452
Balance beginning of the period at Dec. 31, 2020	1,538,703		$ 1,270	1,015,502	555,480		(33,549)
Comprehensive income:
Net income	89,204				89,204
Other comprehensive income (loss) , net	(12,643)						(12,643)
Total comprehensive income	76,561				89,204		(12,643)
Exercise of stock options (in shares)			986,345
Exercise of stock options	12,033		$ 10	12,023
Stock-based compensation expense (in shares)			322,685
Stock-based compensation expense	2,679		$ 3	2,676
Share repurchases (in shares)			(388,012)
Share repurchases	(5,031)		$ (4)	(5,027)
Stock-based compensation forfeited (in shares)			(32,585)
Dividends paid	(49,584)				(49,584)
Balance end of period (in shares) at Jun. 30, 2021			127,907,885
Balance end of the period at Jun. 30, 2021	1,575,361		$ 1,279	1,025,174	595,100		(46,192)
Balance beginning of the period (in shares) at Mar. 31, 2021			127,222,648
Balance beginning of the period at Mar. 31, 2021	1,540,994		$ 1,272	1,018,822	571,612		(50,712)
Comprehensive income:
Net income	48,967				48,967
Other comprehensive income (loss) , net	4,520						4,520
Total comprehensive income	53,487				48,967		4,520
Exercise of stock options (in shares)			418,916
Exercise of stock options	5,106		$ 4	5,102
Stock-based compensation expense (in shares)			320,755
Stock-based compensation expense	1,718		$ 3	1,715
Share repurchases (in shares)			(34,460)
Share repurchases	(465)			(465)
Stock-based compensation forfeited (in shares)			(19,974)
Dividends paid	(25,479)				(25,479)
Balance end of period (in shares) at Jun. 30, 2021			127,907,885
Balance end of the period at Jun. 30, 2021	$ 1,575,361		$ 1,279	$ 1,025,174	$ 595,100		$ (46,192)

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Other comprehensive income (loss), tax	$ (1,331)	$ (1,992)	$ 4,543	$ (5,209)
Dividends paid, per share (in dollars per share)	$ 0.20	$ 0.19	$ 0.39	$ 0.38

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities:
Net income	$ 89,204	$ 1,739
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(5,620)	79,387
Net gain on sale of assets	(570)	(164)
Mortgage banking activity	(13,818)	(6,076)
Gain on sale of insurance business	(25,327)	0
Net depreciation, amortization and accretion	3,058	4,046
(Increase)/decrease in other assets	26,603	(46,883)
Increase/(decrease) in other liabilities	(18,261)	73,401
Net amortization on marketable securities	4,040	977
Noncash compensation expense related to stock benefit plans	2,679	3,026
Noncash write-down of real estate owned	128	220
Deferred income tax (benefit)/expense	900	(3,470)
Origination of loans held-for-sale	(420,530)	(183,040)
Proceeds from sale of loans held-for-sale	462,522	164,202
Net cash provided by operating activities	105,008	87,365
Investing activities:
Purchase of marketable securities held-to-maturity	(479,165)	0
Purchase of marketable securities available-for-sale	(509,499)	(404,310)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	18,261	1,615
Proceeds from maturities and principal reductions of marketable securities available-for-sale	225,823	169,602
Proceeds from sale of marketable securities available-for-sale	61,748	0
Proceeds from bank-owned life insurance	3,984	0
Loan originations	(2,056,750)	(2,466,315)
Proceeds from loan maturities and principal reductions	2,292,701	1,896,118
Proceeds from sale of loans held for investment	0	50,791
Net proceeds/(redemptions) of FHLB stock	(1,539)	2,313
Proceeds from sale of real estate owned	1,431	594
Proceeds from sale of real estate owned for investment, net	153	303
Purchase of premises and equipment	(1,005)	(7,815)
Proceeds from the sale of insurance business	28,238	0
Acquisitions, net of cash received	0	261,712
Net cash used in investing activities	(415,619)	(495,392)
Financing activities:
Net increase in deposits	491,475	1,253,895
Repayments of long-term borrowings	(22,000)	(31,200)
Net decrease in short-term borrowings	(3,785)	(6,738)
Increase in advances by borrowers for taxes and insurance	8,378	12,014
Cash dividends paid on common stock	(49,584)	(44,569)
Purchase of common stock for retirement	(5,031)	0
Proceeds from stock options exercised	12,033	1,006
Net cash provided by financing activities	431,486	1,184,408
Net increase in cash and cash equivalents	120,875	776,381
Cash and cash equivalents at beginning of period	736,277	60,846
Cash and cash equivalents at end of period	857,152	837,227
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $10,295 and $19,039, respectively)	14,625	23,373
Income taxes	20,601	2,306
Business acquisitions:
Fair value of assets acquired	0	2,085,970
Northwest Bancshares, Inc. common stock issued	0	(213,406)
Net cash paid	0	0
Liabilities assumed	0	1,872,564
Non-cash activities:
Loan foreclosures and repossessions	2,831	2,240
Sale of real estate owned financed by the Company	$ 54	$ 0

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Statement of Cash Flows [Abstract]
Interest on deposits and borrowings, interest credited to deposit accounts	$ 10,295	$ 19,039

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Basis of Presentation and Informational Disclosures

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Informational Disclosures

Basis of Presentation and Informational Disclosures

Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a bank holding company regulated by the Board of Governors of the Federal Reserve System ("FRB"). The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”).  Northwest is regulated by the Federal Deposit Insurance Corporation ("FDIC") and the Pennsylvania Department of Banking. Northwest operates 170 community-banking offices throughout Pennsylvania, Western New York, Eastern Ohio, and Indiana.

The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, The Bert Company (doing business as Northwest Insurance Services, which was sold April 30, 2021) and MutualFirst Investment Company, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information or footnotes required for complete annual financial statements.  In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included.  The Consolidated Financial Statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 updated, as required, for any new pronouncements or changes.

    Certain items previously reported have been reclassified to conform to the current year's reporting format.

    The results of operations for the quarter ended June 30, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021, or any other period.

Stock-Based Compensation

On May 25, 2021, the Company awarded employees 621,972 stock options and directors 72,000 stock options with an exercise price of $13.68 and grant date fair value of $0.64 per stock option, and the Company awarded employees 293,755 restricted common shares and directors 27,000 restricted common shares with a grant date fair value of $13.68. Awarded stock options and common shares vest over a five-year period with the first vesting occurring on the grant date. Stock-based compensation expense of $1.7 million and $1.5 million for the quarters ended June 30, 2021 and 2020, respectively, was recognized in compensation expense relating to our stock benefit plans. At June 30, 2021, there was compensation expense of $11.5 million to be recognized for awarded but unvested stock options and $2.1 million for unvested restricted common shares.

 Income Taxes-Uncertain Tax Positions

Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return.  A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits.  The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At June 30, 2021, we had $336,000 of liability for unrecognized tax benefits.

We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income.  We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2020, 2019, 2018, and 2017.

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board ("FASB") issued the accounting standard update ("ASU") 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20) - Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.” This guidance removes and adds disclosure requirements for defined benefit pension or other post-retirement plans. On January 1, 2021, the Company adopted ASU 2018-14 on a retrospective basis for disclosures impacted. The adoption of this standard did not have a material effect on our results of operations or financial position. Refer to Note 8, "Pension and Other Post-Retirement Benefits".

    In December 2019, the FASB issued ASU 2019-12, "Income Taxes - Simplifying the Accounting for Income Taxes." This guidance simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. On January 1, 2021, the Company adopted ASU 2019-12 on a prospective basis. The adoption of this standard did not have a material effect on our results of operations or financial position.

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Marketable Securities

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable Securities

The following table shows the portfolio of marketable securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S government and agencies:
Due after ten years	$	59,435	125	(306)	59,254
Debt issued by government-sponsored enterprises:
Due in less than one year	25,208		13	—	25,221
Due in five years through ten years	47,663		94	(1,120)	46,637
Municipal securities:
Due in less than one year	1,130		3	(1)	1,132
Due in one year through five years	2,234		60	—	2,294
Due in five years through ten years	20,017		556	(89)	20,484
Due after ten years	87,956		3,265	(102)	91,119
Residential mortgage-backed securities:
Fixed rate pass-through	303,717		3,587	(1,134)	306,170
Variable rate pass-through	12,968		387	(15)	13,340
Fixed rate agency CMOs	988,012		6,582	(6,981)	987,613
Variable rate agency CMOs	45,473		310	(23)	45,760
Total residential mortgage-backed securities	1,350,170		10,866	(8,153)	1,352,883
Total marketable securities available-for-sale	$	1,593,813	14,982	(9,771)	1,599,024

The following table shows the portfolio of marketable securities available-for-sale at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S. government and agencies:
Due after ten years	$	40,761	211	(55)	40,917
Debt issued by government-sponsored enterprises:
Due in less than one year	24,976		159	—	25,135
Due in one year through five years	238		3	—	241
Due in five years through ten years	68,973		238	(80)	69,131
Municipal securities:
Due in less than one year	4,008		14	—	4,022
Due in one year through five years	2,803		63	(2)	2,864
Due in five years through ten years	16,045		429	(5)	16,469
Due after ten years	89,778		3,752	(72)	93,458
Residential mortgage-backed securities:
Fixed rate pass-through	339,406		7,125	(86)	346,445
Variable rate pass-through	14,778		431	(20)	15,189
Fixed rate agency CMOs	723,586		11,758	(1,093)	734,251
Variable rate agency CMOs	50,333		519	(33)	50,819
Total residential mortgage-backed securities	1,128,103		19,833	(1,232)	1,146,704
Total marketable securities available-for-sale	$	1,375,685	24,702	(1,446)	1,398,941

The following table shows the portfolio of marketable securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in one year through five years	$	16,478	—	(18)	16,460
Due in five years through ten years	107,972		—	(3,578)	104,394
Residential mortgage-backed securities:
Fixed rate pass-through	202,269		591	(658)	202,202
Variable rate pass-through	761		26	—	787
Fixed rate agency CMOs	311,341		576	(3,762)	308,155
Variable rate agency CMOs	603		19	—	622
Total residential mortgage-backed securities	514,974		1,212	(4,420)	511,766
Total marketable securities held-to-maturity	$	639,424	1,212	(8,016)	632,620

The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in five years through ten years	$	67,990	12	(123)	67,879
Residential mortgage-backed securities:
Fixed rate pass-through	1,723		131	—	1,854
Variable rate pass-through	919		30	—	949
Fixed rate agency CMOs	107,651		716	(2)	108,365
Variable rate agency CMOs	604		15	—	619
Total residential mortgage-backed securities	110,897		892	(2)	111,787
Total marketable securities held-to-maturity	$	178,887	904	(125)	179,666

The following table shows the contractual maturity of our residential mortgage-backed securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in less than one year	$	1,441	1,444
Due in one year through five years	38,662		39,130
Due after five years through ten years	253,062		255,356
Due after ten years	1,057,005		1,056,953
Total residential mortgage-backed securities	$	1,350,170	1,352,883

The following table shows the contractual maturity of our residential mortgage-backed securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in one year through five years	$	985	1,051
Due after five years through ten years	221,656		221,054
Due after ten years	292,333		289,661
Total residential mortgage-backed securities	$	514,974	511,766

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at June 30, 2021 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	194,872	(4,955)	1,619	(67)	196,491	(5,022)
Municipal securities	11,013		(191)	121	(1)	11,134	(192)
Residential mortgage-backed securities - agency	1,099,202		(12,528)	8,791	(45)	1,107,993	(12,573)
Total	$	1,305,087	(17,674)	10,531	(113)	1,315,618	(17,787)

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2020 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	67,809	(179)	1,923	(80)	69,732	(259)
Municipal securities	4,257		(79)	—	—	4,257	(79)
Residential mortgage-backed securities - agency	300,767		(1,202)	5,533	(31)	306,300	(1,233)
Total	$	372,833	(1,460)	7,456	(111)	380,289	(1,571)

The Company does not believe that the available-for-sale debt securities that were in an unrealized loss position as of June 30, 2021, which were comprised of 158 individual securities, represents a credit loss impairment. All of these securities were issued by U.S. government agencies or U.S. government-sponsored enterprises. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The unrealized losses were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities. The Company does not have the intent to sell these investment securities and it is likely that we will not be required to sell these securities before their anticipated recovery, which may be at maturity.

All of the Company's held-to-maturity debt securities are issued by U.S. government agencies or U.S. government-sponsored enterprises. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Therefore, the Company did not record an allowance for credit losses for these securities as of June 30, 2021.

The following table presents the credit quality of our held-to-maturity securities, based on the latest information available as of June 30, 2021. The credit ratings are sourced from nationally recognized rating agencies, which include Moody's and S&P, or when credit ratings cannot be sourced from the agencies, they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of June 30, 2021.

	AA+		Total
Held-to-maturity securities:
Debt issued by government-sponsored enterprises	$	124,450	124,450
Residential mortgage-backed securities	514,974		514,974
Total marketable securities held-to-maturity	$	639,424	639,424

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Loans Receivable

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Loans Receivable

Loans Receivable

    The following table shows a summary of our loans receivable at amortized cost basis at June 30, 2021 and December 31, 2020 (in thousands): 

	June 30, 2021				December 31, 2020
	Originated		Acquired	Total	Originated	Acquired	Total
Personal Banking:
Residential mortgage loans (1)	$	2,701,046	253,505	2,954,551	2,753,593	314,528	3,068,121
Home equity loans	1,127,884		248,344	1,376,228	1,175,703	292,033	1,467,736
Vehicle loans	1,266,181		125,339	1,391,520	995,040	157,633	1,152,673
Consumer loans	299,163		54,548	353,711	288,066	67,254	355,320
Total Personal Banking	5,394,274		681,736	6,076,010	5,212,402	831,448	6,043,850
Commercial Banking:
Commercial real estate loans	2,258,220		524,831	2,783,051	2,223,108	624,873	2,847,981
Commercial real estate loans - owner occupied	327,039		105,099	432,138	344,016	153,892	497,908
Commercial loans	899,035		119,746	1,018,781	1,019,482	171,628	1,191,110
Total Commercial Banking	3,484,294		749,676	4,233,970	3,586,606	950,393	4,536,999
Total loans receivable, gross	8,878,568		1,431,412	10,309,980	8,799,008	1,781,841	10,580,849
Allowance for credit losses	(90,375)		(26,955)	(117,330)	(102,874)	(31,553)	(134,427)
Total loans receivable, net (2)	$	8,788,193	1,404,457	10,192,650	8,696,134	1,750,288	10,446,422

(1)     Includes fair value of $29.1 million and $58.8 million of loans held-for-sale at June 30, 2021 and December 31, 2020, respectively.

(2)    Includes $48.7 million and $40.9 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at June 30, 2021 and December 31, 2020, respectively.

    The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of March 31, 2021
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,922	(770)	234	5,861
Home equity loans	7,239		2,253	(379)	124	5,241
Vehicle loans	12,888		(1,196)	(1,598)	794	14,888
Consumer loans	2,801		691	(803)	350	2,563
Total Personal Banking	30,175		3,670	(3,550)	1,502	28,553
Commercial Banking:
Commercial real estate loans	64,580		(2,925)	(3,074)	373	70,206
Commercial real estate loans - owner occupied	4,729		(1,138)	(890)	4	6,753
Commercial loans	17,846		393	(1,161)	129	18,485
Total Commercial Banking	87,155		(3,670)	(5,125)	506	95,444
Total	$	117,330	—	(8,675)	2,008	123,997
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		8	—	—	34
Total Personal Banking	44		8	—	—	36
Commercial Banking:
Commercial real estate loans	1,932		(183)	—	—	2,115
Commercial real estate loans - owner occupied	181		(207)	—	—	388
Commercial loans	1,232		(848)	—	—	2,080
Total Commercial Banking	3,345		(1,238)	—	—	4,583
Total off-balance sheet exposure	$	3,389	(1,230)	—	—	4,619

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2020, and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Balance as of March 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	(30)	(38)	8	1,095	10,673
Home equity loans	9,363		(542)	(173)	76	216	9,786
Vehicle loans	13,835		2,949	(1,763)	420	235	11,994
Consumer loans	2,506		(1,789)	(1,428)	400	157	5,166
Total Personal Banking	37,412		588	(3,402)	904	1,703	37,619
Commercial Banking:
Commercial real estate loans	72,833		37,969	(690)	454	5,720	29,380
Commercial real estate loans - owner occupied	14,827		5,482	—	8	963	8,374
Commercial loans	15,514		7,711	(10,349)	169	459	17,524
Total Commercial Banking	103,174		51,162	(11,039)	631	7,142	55,278
Total	$	140,586	51,750	(14,441)	1,535	8,845	92,897
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	4	—	—	—	34
Total Personal Banking	38		4	—	—	—	34
Commercial Banking:
Commercial real estate loans	5,135		1,841	—	—	—	3,294
Commercial real estate loans - owner occupied	626		531	—	—	—	95
Commercial loans	4,384		3,103	—	—	—	1,281
Total Commercial Banking	10,145		5,475	—	—	—	4,670
Total off-balance sheet exposure	$	10,183	5,479	—	—	—	4,704

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of December 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,330	(1,625)	276	7,266
Home equity loans	7,239		1,601	(607)	253	5,992
Vehicle loans	12,888		(423)	(2,905)	1,391	14,825
Consumer loans	2,801		1,342	(2,099)	687	2,871
Total Personal Banking	30,175		3,850	(7,236)	2,607	30,954
Commercial Banking:
Commercial real estate loans	64,580		(7,756)	(7,700)	655	79,381
Commercial real estate loans - owner occupied	4,729		(4,904)	(890)	5	10,518
Commercial loans	17,846		3,190	(1,215)	2,297	13,574
Total Commercial Banking	87,155		(9,470)	(9,805)	2,957	103,473
Total	$	117,330	(5,620)	(17,041)	5,564	134,427
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		7	—	—	35
Total Personal Banking	44		7	—	—	37
Commercial Banking:
Commercial real estate loans	1,932		(1,517)	—	—	3,449
Commercial real estate loans - owner occupied	181		(145)	—	—	326
Commercial loans	1,232		(1,319)	—	—	2,551
Total Commercial Banking	3,345		(2,981)	—	—	6,326
Total off-balance sheet exposure	$	3,389	(2,974)	—	—	6,363

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Cumulative effect of ASU 2016-13*	Balance as of December 31, 2019
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	864	(381)	115	1,095	7,441	2,574
Home equity loans	9,363		353	(462)	281	216	5,786	3,189
Vehicle loans	13,835		8,308	(3,606)	764	235	842	7,292
Consumer loans	2,506		1,729	(3,073)	816	157	(2,424)	5,301
Total Personal Banking	37,412		11,254	(7,522)	1,976	1,703	11,645	18,356
Commercial Banking:
Commercial real estate loans	72,833		49,238	(1,000)	744	5,720	2,288	15,843
Commercial real estate loans - owner occupied	14,827		6,847	(21)	15	963	1,278	5,745
Commercial loans	15,514		12,048	(11,164)	593	459	(4,419)	17,997
Total Commercial Banking	103,174		68,133	(12,185)	1,352	7,142	(853)	39,585
Total	$140,586		79,387	(19,707)	3,328	8,845	10,792	57,941
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	8	—	—	—	(293)	323
Consumer loans	—		—	—	—	—	(402)	402
Total Personal Banking	38		8	—	—	—	(695)	725
Commercial Banking:
Commercial real estate loans	5,135		3,124	—	—	—	1,934	77
Commercial real estate loans - owner occupied	626		535	—	—	—	88	3
Commercial loans	4,384		3,292	—	—	—	923	169
Total Commercial Banking	10,145		6,951	—	—	—	2,945	249
Total off-balance sheet exposure	$	10,183	6,959	—	—	—	2,250	974

* Includes the impact of the initial allowance on PCD loans of $517,000.    

During the six months ended June 30, 2021, there were no loans sold that were classified as held for investment. During the six months ended June 30, 2020, we sold $50 million of loans that were classified as held for investment, for a gain of $1.3 million, which is reported in gain on sale of loans on the Consolidated Statements of Income. No loans were sold during the three months ended June 30, 2021 or June 30, 2020.

    The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at June 30, 2021 (in thousands):

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	2,954,551	7,247	10,471	—	7,347	944	—
Home equity loans	1,376,228		7,239	6,965	—	1,968	652	—
Vehicle loans	1,391,520		12,888	2,579	—	—	—	—
Consumer loans	353,711		2,801	477	302	—	—	—
Total Personal Banking	6,076,010		30,175	20,492	302	9,315	1,596	—
Commercial Banking:
Commercial real estate loans	2,783,051		64,580	162,301	—	14,588	890	500
Commercial real estate loans - owner occupied	432,138		4,729	1,870	—	452	162	—
Commercial loans	1,018,781		17,846	22,098	—	3,076	315	765
Total Commercial Banking	4,233,970		87,155	186,269	—	18,116	1,367	1,265
Total	$	10,309,980	117,330	206,761	302	27,431	2,963	1,265

(1)Includes $9.0 million of nonaccrual TDRs.

    The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2020 (in thousands): 

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	3,068,121	7,266	15,924	—	8,431	560	—
Home equity loans	1,467,736		5,992	9,123	—	2,058	381	26
Vehicle loans	1,152,673		14,825	5,533	1	—	—	—
Consumer loans	355,320		2,871	1,031	584	1	—	—
Total Personal Banking	6,043,850		30,954	31,611	585	10,490	941	26
Commercial Banking:
Commercial real estate loans	2,847,981		79,381	44,092	—	18,430	787	471
Commercial real estate loans - owner occupied	497,908		10,518	3,642	—	761	123	—
Commercial loans	1,191,110		13,574	23,487	—	2,454	165	362
Total Commercial Banking	4,536,999		103,473	71,221	—	21,645	1,075	833
Total	$	10,580,849	134,427	102,832	585	32,135	2,016	859

(1)Includes $10.7 million of nonaccrual TDRs.

We present the amortized cost of our loans on nonaccrual status including such loans with no allowance. The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the quarter ended June 30, 2021 (in thousands): 

	Nonaccrual loans at January 1, 2021		Nonaccrual loans at June 30, 2021 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	15,924	10,471	—	—
Home equity loans	9,123		6,773	192	—
Vehicle loans	5,533		2,576	3	—
Consumer loans	1,031		477	—	302
Total Personal Banking	31,611		20,297	195	302
Commercial Banking:
Commercial real estate loans	44,092		101,472	60,829	—
Commercial real estate loans - owner occupied	3,642		1,870	—	—
Commercial loans	23,487		17,323	4,775	—
Total Commercial Banking	71,221		120,665	65,604	—
Total	$	102,832	140,962	65,799	302

During the three and six months ended June 30, 2021, we recognized $247,000 and $526,000 of interest income on nonaccrual and troubled debt restructuring loans.

The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the year ended December 31, 2020 (in thousands): 

	Nonaccrual loans at January 1, 2020		Nonaccrual loans at December 31, 2020 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	14,476	15,923	—	—
Home equity loans	6,745		8,872	252	—
Vehicle loans	3,147		5,377	156	1
Consumer loans	1,079		1,030	1	584
Total Personal Banking	25,447		31,202	409	585
Commercial Banking:
Commercial real estate loans	18,832		27,079	17,013	—
Commercial real estate loans - owner occupied	16,032		3,642	—	—
Commercial loans	8,559		18,069	5,418	—
Total Commercial Banking	43,423		48,790	22,431	—
Total	$	68,870	79,992	22,840	585

During the year ended December 31, 2020, we recognized $842,000 of interest income on nonaccrual and troubled debt restructuring loans.

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of June 30, 2021 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	586	—	—	586
Home equity loans	99		—	—	99
Total Personal Banking	685		—	—	685
Commercial Banking:
Commercial real estate loans	150,426		1,852	3,432	155,710
Commercial loans	2,851		10,069	4,403	17,323
Total Commercial Banking	153,277		11,921	7,835	173,033
Total	$	153,962	11,921	7,835	173,718

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2020 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	1,269	—	—	1,269
Home equity loans	99		—	—	99
Total Personal Banking	1,368		—	—	1,368
Commercial Banking:
Commercial real estate loans	79,392		1,997	1,703	83,092
Commercial loans	3,313		197	11,069	14,579
Total Commercial Banking	82,705		2,194	12,772	97,671
Total	$	84,073	2,194	12,772	99,039

    Our loan portfolios include loans that have been modified in a TDR, where concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include: extending the note’s maturity date, permitting interest only payments, reducing the interest rate to a rate lower than current market rates for new debt with similar risk, reducing the principal payment, principal forbearance or other actions.  These concessions are applicable to all loan segments and classes. Certain TDRs are classified as nonperforming at the time of restructuring and may be returned to performing status after considering the borrower’s sustained repayment performance for a period of at least six months.

When we modify loans in a TDR, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, the loan’s observable market price or the current fair value of the collateral, less selling costs, for collateral dependent loans.  If we determine that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premiums or discounts), impairment is recognized through an allowance estimate or a charge-off to the allowance.  In periods subsequent to modification, we evaluate all TDRs, including those that have payment defaults, for possible impairment in accordance with ASC 310-10. As a result, loans modified in a TDR may have the financial effect of increasing the specific allowance associated with the loan.

Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default.  If loans modified in a TDR subsequently default, we evaluate the loan for possible further impairment. The allowance may be increased, adjustments may be made in the allocation of the allowance, partial charge-offs may be taken to further write-down the carrying value of the loan, or the loan may be charged-off completely.

In March 2020 and August 2020, joint statements were issued by federal and state regulatory agencies, after consultation with the FASB, to clarify that short-term loan modifications are not TDRs if made on a good-faith basis in response to COVID-19 to borrowers who were current prior to any relief. Under this guidance, six months is provided as an example of short-term, and current is defined as less than 30 days past due at the time the modification program is implemented. The guidance also provides that these modified loans generally will not be classified as nonaccrual during the term of the modification. For borrowers who are 30 days or more past due when enrolling in a loan modification program related to the COVID-19 pandemic, we evaluate the loan modifications under our existing TDR framework, and where such a loan modification would result in a concession to a borrower experiencing financial difficulty, the loan will be accounted for as a TDR and will generally not accrue interest. This TDR relief under the CARES Act was extended by the Consolidated Appropriations Act, 2021 ("CAA"), signed into law on December 27, 2020. Under the CAA, such relief will continue until the earlier of 60 days after the date the COVID-19 national emergency comes to an end or January 1, 2022. Certain loan modifications made during the year were done in accordance with Section 4013 of the CARES Act and the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus. Accordingly, these loans and leases were not categorized as TDRs.

The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands):

	For the quarter ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	164	$	27,510	171	$	33,352
New TDRs	2	2,295		1	67
Re-modified TDRs	1	344		2	3,436
Net paydowns	—	(1,610)		—	(1,194)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		—	—
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	2	(302)		—	—
Commercial real estate loans - owner occupied	—	—		1	(25)
Commercial loans	1	(69)		2	(183)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

	For the six months ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	170	$	32,135	176	$	31,999
New TDRs	2	2,295		3	84
Re-modified TDRs	5	1,241		3	5,487
Net paydowns	—	(4,073)		—	(1,509)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		1	(10)
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		2	(330)
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	5	(2,686)		1	(26)
Commercial real estate loans - owner occupied	1	(47)		1	(25)
Commercial loans	3	(697)		5	(217)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

    The following table provides information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands):

	For the quarter ended June 30, 2021					For the six months ended June 30, 2021
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	1	$	121	116	10
Home equity loans	—	—		—	—	1	3		—	—
Total Personal Banking	—	—		—	—	2	124		116	10
Commercial Banking:
Commercial real estate loans	1	725		343	34	3	1,537		1,125	148
Commercial loans	2	2,396		2,295	—	2	2,396		2,295	—
Total Commercial Banking	3	3,121		2,638	34	5	3,933		3,420	148
Total	3	$	3,121	2,638	34	7	$	4,057	3,536	158

	For the quarter ended June 30, 2020					For the six months ended June 30, 2020
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	$	—	—	—
Home equity loans	1	67		67	12	2	86		84	15
Vehicle loans	—	—		—	—	—	—		—	—
Consumer loans	—	—		—	—	—	—		—	—
Total Personal Banking	1	67		67	12	2	86		84	15
Commercial Banking:
Commercial real estate loans	1	454		454	58	1	454		454	58
Commercial real estate loans - owner occupied	—	—		—	—	2	2,077		2,051	131
Commercial loans	1	2,500		2,982	—	1	2,500		2,982	—
Total Commercial Banking	2	2,954		3,436	58	4	5,031		5,487	189
Total	3	$	3,021	3,503	70	6	$	5,117	5,571	204

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	—	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	—	—		—	—	—	—
Commercial Banking:
Commercial real estate loans	1	—		—	343	—	343
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	3	—		—	2,638	—	2,638
Total	3	$	—	—	2,638	—	2,638

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	1	67		—	—	—	67
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	1	67		—	—	—	67
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	2	—		454	—	2,982	3,436
Total	3	$	67	454	—	2,982	3,503

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	1	$	116	—	—	—	116
Home equity loans	1	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	116		—	—	—	116
Commercial Banking:
Commercial real estate loans	3	—		—	1,052	73	1,125
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	5	—		—	3,347	73	3,420
Total	7	$	116	—	3,347	73	3,536

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	2	67		—	17	—	84
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	67		—	17	—	84
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	2	—		—	2,051	—	2,051
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	4	—		454	2,051	2,982	5,487
Total	6	$	67	454	2,068	2,982	5,571

The following table provides information related to troubled debt restructurings modified within the previous twelve months

of June 30, 2021 that subsequently defaulted:

	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Consumer loans	—	—		—	—
Total Personal Banking	—	—		—	—
Commercial Banking:
Commercial real estate loans	1	454		454	50
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Total Commercial Banking	1	$	454	454	50
Total	1	$	454	454	50

No TDRs modified within the previous twelve months of June 30, 2020 subsequently defaulted.

The following table provides information related to the amortized cost basis of loan payment delinquencies at June 30, 2021 (in thousands):

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 Days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	606	4,051	10,007	14,664	2,939,887	2,954,551	—
Home equity loans	3,677		1,502	6,256	11,435	1,364,793	1,376,228	—
Vehicle loans	4,475		1,392	1,917	7,784	1,383,736	1,391,520	—
Consumer loans	1,096		596	726	2,418	351,293	353,711	302
Total Personal Banking	9,854		7,541	18,906	36,301	6,039,709	6,076,010	302
Commercial Banking:
Commercial real estate loans	2,857		1,335	22,702	26,894	2,756,157	2,783,051	—
Commercial real estate loans - owner occupied	—		—	862	862	431,276	432,138	—
Commercial loans	686		27	4,126	4,839	1,013,942	1,018,781	—
Total Commercial Banking	3,543		1,362	27,690	32,595	4,201,375	4,233,970	—
Total loans	$	13,397	8,903	46,596	68,896	10,241,084	10,309,980	302

The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2020 (in thousands): 

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	28,797	5,083	14,489	48,369	3,019,752	3,068,121	—
Home equity loans	4,763		1,656	8,441	14,860	1,452,876	1,467,736	—
Vehicle loans	7,707		1,776	4,599	14,082	1,138,592	1,152,674	1
Consumer loans	2,867		966	1,459	5,292	350,027	355,319	584
Total Personal Banking	44,134		9,481	28,988	82,603	5,961,247	6,043,850	585
Commercial Banking:
Commercial real estate loans	6,692		1,615	23,307	31,614	2,816,366	2,847,980	—
Commercial real estate loans - owner occupied	4,231		—	1,980	6,211	491,698	497,909	—
Commercial loans	6,405		864	7,325	14,594	1,176,516	1,191,110	—
Total Commercial Banking	17,328		2,479	32,612	52,419	4,484,580	4,536,999	—
Total originated loans	$	61,462	11,960	61,600	135,022	10,445,827	10,580,849	585

Credit Quality Indicators: For Commercial Banking loans we categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze loans individually by classifying the loans by credit risk. Credit relationships greater than or equal to $1.0 million classified as special mention or substandard are reviewed quarterly for deterioration or improvement to determine if the loan is appropriately classified. We use the following definitions for risk ratings other than pass:

Special Mention — Loans designated as special mention have specific, well-defined risk issues, which create a high level of uncertainty regarding the long-term viability of the business. Loans in this class are considered to have high-risk characteristics.  A special mention loan exhibits material negative financial trends due to company-specific or systemic conditions. If these potential weaknesses are not mitigated, they threaten the borrower’s capacity to meet its debt obligations.  Special mention loans still demonstrate sufficient financial flexibility to react to and positively address the root cause of the adverse financial trends without significant deviations from their current business strategy. Their potential weaknesses deserve our close attention and warrant enhanced monitoring.

Substandard — Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.

Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified as substandard. In addition, those weaknesses make collection or liquidation in full highly questionable and improbable. A loan classified as doubtful exhibits discernible loss potential, but a complete loss seems very unlikely. The possibility of a loss on a doubtful loan is high, but because of certain important and reasonably specific pending factors that may strengthen the loan, its classification as an estimated loss is deferred until a more exact status can be determined.

Loss — Loans classified as loss are considered uncollectible and of such value that the continuance as a loan is not warranted. A loss classification does not mean that the loan has no recovery or salvage value; instead, it means that it is not practical or desirable to defer writing off all or a portion of a basically worthless loan even though partial recovery may be possible in the future.

For Personal Banking loans a pass risk rating is maintained until they are greater than 90 days past due, and risk rating reclassification is based primarily on past due status of the loan. The risk rating categories can generally be described by the following groupings:

Pass — Loans classified as pass are homogeneous loans that are less than 90 days past due from the required payment date at month-end.

Substandard — Loans classified as substandard are homogeneous loans that are greater than 90 days past due from the required payment date at month-end, loans classified as TDRs, PCD loans, or homogenous retail loans that are greater than 180 days past due from the required payment date at month-end that has been written down to the value of underlying collateral, less costs to sell.

Doubtful — Loans classified as doubtful are homogeneous loans that are greater than 180 days past due from the required payment date at month-end and not written down to the value of underlying collateral. These loans are generally charged-off in the month in which the 180 day period elapses.

The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of June 30, 2021 (in thousands): 

	YTD June 30, 2021		2020	2019	2018	2017	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	300,509	641,609	348,382	185,748	204,651	1,256,519	—	—	2,937,418
Substandard	—		495	—	1,343	1,059	14,236	—	—	17,133
Total residential mortgage loans	300,509		642,104	348,382	187,091	205,710	1,270,755	—	—	2,954,551
Home equity loans
Pass	76,844		242,949	162,871	77,955	72,820	251,135	440,990	42,201	1,367,765
Substandard	—		66	245	200	424	4,656	1,800	1,072	8,463
Total home equity loans	76,844		243,015	163,116	78,155	73,244	255,791	442,790	43,273	1,376,228
Vehicle loans
Pass	494,650		369,808	272,201	163,243	49,891	39,147	—	—	1,388,940
Substandard	12		208	790	677	459	434	—	—	2,580
Total vehicle loans	494,662		370,016	272,991	163,920	50,350	39,581	—	—	1,391,520
Consumer loans
Pass	68,379		103,618	62,378	26,667	12,898	15,131	62,071	1,790	352,932
Substandard	129		89	125	39	17	34	318	28	779
Total consumer loans	68,508		103,707	62,503	26,706	12,915	15,165	62,389	1,818	353,711
Total Personal Banking	940,523		1,358,842	846,992	455,872	342,219	1,581,292	505,179	45,091	6,076,010
Business Banking:
Commercial real estate loans
Pass	132,129		455,283	445,635	293,714	249,646	778,071	29,786	16,779	2,401,043
Special Mention	599		1,333	27,316	2,604	6,901	21,311	669	—	60,733
Substandard	—		33,432	21,064	64,704	59,893	134,247	593	7,342	321,275
Total commercial real estate loans	132,728		490,048	494,015	361,022	316,440	933,629	31,048	24,121	2,783,051
Commercial real estate loans - owner occupied
Pass	20,891		30,499	58,526	80,173	59,144	126,007	1,849	3,602	380,691
Special Mention	—		—	2,719	1,175	4,152	3,453	935	—	12,434
Substandard	—		—	2,832	1,456	11,743	22,443	368	171	39,013
Total commercial real estate loans - owner occupied	20,891		30,499	64,077	82,804	75,039	151,903	3,152	3,773	432,138
Commercial loans
Pass	267,471		163,309	87,765	38,255	41,393	101,885	229,252	14,335	943,665
Special Mention	587		5,279	837	1,018	190	708	2,647	—	11,266
Substandard	234		7,089	7,236	6,470	5,191	3,548	16,487	17,595	63,850
Total commercial loans	268,292		175,677	95,838	45,743	46,774	106,141	248,386	31,930	1,018,781
Total Business Banking	421,911		696,224	653,930	489,569	438,253	1,191,673	282,586	59,824	4,233,970
Total loans	$	1,362,434	2,055,066	1,500,922	945,441	780,472	2,772,965	787,765	104,915	10,309,980

    For the six months ended June 30, 2021, $17.8 million of revolving loans were converted to term loans.

The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of December 31, 2020 (in thousands): 

	YTD December 31, 2020		2019	2018	2017	2016	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	641,963	418,057	229,477	247,426	215,893	1,289,728	—	—	3,042,544
Substandard	—		68	1,293	1,674	1,091	21,451	—	—	25,577
Total residential mortgage loans	641,963		418,125	230,770	249,100	216,984	1,311,179	—	—	3,068,121
Home equity loans
Pass	273,076		193,439	94,757	87,717	81,212	219,061	465,453	40,759	1,455,474
Substandard	—		210	318	281	876	5,158	3,509	1,910	12,262
Total home equity loans	273,076		193,649	95,075	87,998	82,088	224,219	468,962	42,669	1,467,736
Vehicle loans
Pass	448,746		352,661	218,372	70,122	31,197	24,791	—	—	1,145,889
Substandard	343		1,958	2,087	1,210	667	519	—	—	6,784
Total vehicle loans	449,089		354,619	220,459	71,332	31,864	25,310	—	—	1,152,673
Consumer loans
Pass	128,809		83,419	35,183	17,439	7,848	11,757	66,965	1,695	353,115
Substandard	133		399	139	192	36	619	686	1	2,205
Total consumer loans	128,942		83,818	35,322	17,631	7,884	12,376	67,651	1,696	355,320
Total Personal Banking	1,493,070		1,050,211	581,626	426,061	338,820	1,573,084	536,613	44,365	6,043,850
Business Banking:
Commercial real estate loans
Pass	417,390		473,115	316,045	264,702	195,168	709,459	36,980	29,755	2,442,614
Special Mention	584		3,381	20,180	24,675	15,424	15,817	597	3,048	83,706
Substandard	7,426		4,007	57,694	56,991	24,056	140,147	2,240	29,100	321,661
Total commercial real estate loans	425,400		480,503	393,919	346,368	234,648	865,423	39,817	61,903	2,847,981
Commercial real estate loans - owner occupied
Pass	24,895		67,162	87,497	71,626	46,760	100,081	4,422	7,648	410,091
Special Mention	—		4,371	4,514	3,643	4,276	3,689	3,822	—	24,315
Substandard	—		21,627	1,903	12,898	4,013	21,777	874	410	63,502
Total commercial real estate loans - owner occupied	24,895		93,160	93,914	88,167	55,049	125,547	9,118	8,058	497,908
Commercial loans
Pass	479,436		99,877	50,915	51,858	58,597	49,178	286,467	16,170	1,092,498
Special Mention	5,828		2,751	5,579	4,588	162	190	16,512	5,668	41,278
Substandard	1,660		3,343	2,932	2,016	2,266	3,003	27,988	14,126	57,334
Total commercial loans	486,924		105,971	59,426	58,462	61,025	52,371	330,967	35,964	1,191,110
Total Business Banking	937,219		679,634	547,259	492,997	350,722	1,043,341	379,902	105,925	4,536,999
Total loans	$	2,430,289	1,729,845	1,128,885	919,058	689,542	2,616,425	916,515	150,290	10,580,849

    For the year ended December 31, 2020, $23.1 million of revolving loans were converted to term loans.

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands):

	June 30, 2021		December 31, 2020
Amortizable intangible assets:
Core deposit intangibles - gross	$	74,899	71,182
Acquisitions	—		3,717
Less: accumulated amortization	(59,680)		(56,896)
Core deposit intangibles - net	$	15,219	18,003
Customer and Contract intangible assets - gross	$	12,775	12,775
Customer list intangible assets disposed of due to sale of insurance business	(1,591)		—
Less: accumulated amortization	(11,041)		(10,842)
Customer and Contract intangible assets - net	143		1,933
Total intangible assets - net	$	15,362	19,936

The following table shows the actual aggregate amortization expense for the quarters ended June 30, 2021 and 2020, as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands):

For the quarter ended June 30, 2021	$	1,433
For the quarter ended June 30, 2020	1,760
For the six months ended June 30, 2021	3,027
For the six months ended June 30, 2020	3,411
For the year ending December 31, 2021	5,509
For the year ending December 31, 2022	4,277
For the year ending December 31, 2023	3,270
For the year ending December 31, 2024	2,452
For the year ending December 31, 2025	1,662
For the year ending December 31, 2026	871

    The following table provides information for the changes in the carrying amount of goodwill (in thousands):

	Total
Balance at December 31, 2019	$	346,103
Goodwill acquired	36,176
Balance at December 31, 2020	382,279
Purchase accounting adjustment	77
Goodwill disposed of due to sale of insurance business	(1,359)
Balance at June 30, 2021	$	380,997

    We performed our annual goodwill impairment test as of June 30, 2021 in accordance with ASC 350, as updated by ASU 2017-04 ("Step 0"), and concluded that goodwill was not impaired.

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Borrowed Funds

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Borrowed Funds

Borrowed Funds

    (a)    Borrowings

	June 30, 2021
	Amount		Average rate
Collateralized borrowings, due within one year	$	133,876	0.19	%
Subordinated debentures, net of issuance costs	123,501		4.00	%
Total borrowed funds	$	257,377

Borrowings from the Federal Home Loan Banks ("FHLB") of Pittsburgh and Indianapolis, if any, are secured by our residential first mortgage and other qualifying loans. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. During the quarter ended June 30, 2021, $2.0 million of term notes payable to the FHLB of Indianapolis matured.

    The revolving line of credit with the FHLB of Pittsburgh carries a commitment of $250.0 million. The rate is adjusted daily by the FHLB of Pittsburgh, and any borrowings on this line may be repaid at any time without penalty. The revolving line of credit had no balance as of June 30, 2021 and December 31, 2020.

    At June 30, 2021 and December 31, 2020, collateralized borrowings due within one year were $133.9 million and $137.7 million, respectively. These borrowings are collateralized by cash or various securities held in safekeeping by the FHLB.

On September 9, 2020, the Company issued $125.0 million of 4.00% fixed-to-floating rate subordinated notes with a maturity date of September 15, 2030. The subordinated notes, which qualify as Tier 2 capital, bear interest at an annual rate of 4.00%, payable semi-annually in arrears commencing on March 15, 2021, and a floating rate of interest equivalent to the 3-month Secured Overnight Financing Rate ("SOFR") plus 3.89% payable quarterly in arrears commencing on December 15, 2025. The subordinated debt issuance costs of approximately $1.8 million are being amortized over five years on a straight-line basis into interest expense.

(b)    Trust Preferred Securities

The Company has seven statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust, Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust, LNB Trust II, a Delaware statutory business trust, Union National Capital Trust I ("UNCT I"), a Delaware statutory business trust, Union National Capital Trust II ("UNCT II"), a Delaware statutory business trust, MFBC Statutory Trust I, a Delaware statutory trust, and Universal Preferred Trust, a Delaware statutory trust (the "Trusts"). The Trusts exist solely to issue preferred securities to third parties for cash, issue common securities to the Company in exchange for capitalization of the Trusts, invest the proceeds from the sale of trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. 

The Trusts have invested the proceeds of the offerings in junior subordinated deferrable interest debentures issued by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. These subordinated debentures are the sole assets of the Trusts. As the shareholders of the trust preferred securities are the primary beneficiaries of the Trusts, the Trusts are not consolidated in our financial statements.

The following table sets forth a summary of the cumulative trust preferred securities and the junior subordinated debt held by the Trust as of June 30, 2021.

	Maturity date	Interest rate	Capital debt securities	June 30, 2021
Northwest Bancorp Capital Trust III	December 30, 2035	3-month LIBOR plus 1.38%	$50,000	$	51,547
Northwest Bancorp Statutory Trust IV	December 15, 2035	3-month LIBOR plus 1.38%	50,000	51,547
LNB Trust II	June 15, 2037	3-month LIBOR plus 1.48%	7,875	8,119
UNCT I (1)	January 23, 2034	3-month LIBOR plus 2.85%	8,000	7,938
UNCT II (1)	November 23, 2034	3-month LIBOR plus 2.00%	3,000	2,727
MFBC Statutory Trust I (1)	September 15, 2035	3-month LIBOR plus 1.70%	5,000	3,528
Universal Preferred Trust (1)	October 7, 2035	3-month LIBOR plus 1.69%	5,000	3,518
				$	128,924

(1) Net of discounts due to the fair value adjustment made at the time of acquisition.

Cash distributions on the trust securities are made on a quarterly basis to the extent interest on the debentures is received by the Trusts.  We have the right to defer payment of interest on the subordinated debentures at any time, or from time-to-time, for periods not exceeding five years. If interest payments on the subordinated debentures are deferred, the distributions on the trust securities also are deferred. To date there have been no interest deferrals. Interest on the subordinated debentures and distributions on the trust securities is cumulative. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities.

The Trusts must redeem the preferred securities when the debentures are paid at maturity or upon an earlier redemption of the debentures to the extent the debentures are redeemed. All or part of the debentures may be redeemed at any time. Also, the debentures may be redeemed at any time if existing laws or regulations, or the interpretation or application of these laws or regulations, change causing:

•the interest on the debentures to no longer be deductible by the Company for federal income tax purposes;

•the trusts to become subject to federal income tax or to certain other taxes or governmental charges;

•the trusts to register as an investment company; or

•the preferred securities to no longer qualify as Tier I capital. 

We may, at any time, dissolve any of the Trusts and distribute the debentures to the trust security holders, subject to receipt of any required regulatory approvals.

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Guarantees	6 Months Ended
	Jun. 30, 2021
Guarantees [Abstract]
Guarantees	Guarantees We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. We are required to perform under a standby letter of credit when drawn upon by the guaranteed third party in the case of nonperformance by our customer. The credit risk associated with standby letters of credit is essentially the same as that involved in extending loans to customers and is subject to normal loan underwriting procedures. Collateral may be obtained based on management’s credit assessment of the customer. At June 30, 2021, the maximum potential amount of future payments we could be required to make under these non-recourse standby letters of credit was $46.4 million, of which $38.0 million is fully collateralized. At June 30, 2021, we had a liability which represents deferred income of $530,000 related to the standby letters of credit.

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Earnings Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

     Basic earnings per common share ("EPS") is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, without considering any dilutive items. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the Company.

The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): 

	Quarter ended June 30,			Six months ended June 30,
	2021		2020	2021	2020
Net income	$	48,967	(6,200)	89,204	1,739
Less: Dividends and undistributed earnings allocated to participating securities	340		(47)	619	13
Net income available to common shareholders	$	48,627	(6,153)	88,585	1,726
Weighted average common shares outstanding	126,749,707		121,480,563	126,456,814	113,672,131
Add: Participating shares outstanding	887,958		982,754	887,958	982,754
Total weighted average common shares and dilutive potential shares	$	127,637,665	122,463,317	127,344,772	114,654,885
Basic earnings per share	$	0.38	(0.05)	0.70	0.02
Diluted earnings per share	$	0.38	(0.05)	0.70	0.02

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Pension and Other Post-Retirement Benefits

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Pension and Other Post-Retirement Benefits

Pension and Other Post-Retirement Benefits

The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands):

	Quarter ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	2,860	2,098	—	—
Interest cost	1,518		1,714	5	6
Expected return on plan assets	(3,465)		(3,091)	—	—
Amortization of prior service cost	(581)		(581)	—	—
Amortization of the net loss	1,040		924	3	4
Net periodic cost	$	1,372	1,064	8	10

	Six months ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	5,720	4,196	—	—
Interest cost	3,035		3,427	9	13
Expected return on plan assets	(6,930)		(6,182)	—	—
Amortization of prior service cost	(1,161)		(1,161)	—	—
Amortization of the net loss	2,079		1,848	7	9
Net periodic cost	$	2,743	2,128	16	22

    We anticipate making a contribution to our defined benefit pension plan of $4.0 million to $8.0 million during the year ending December 31, 2021.

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Disclosures About Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Disclosures About Fair Value of Financial Instruments

Disclosures About Fair Value of Financial Instruments

    We are required to disclose fair value information about financial instruments whether or not recognized in the Consolidated Statement of Financial Condition. Fair value information of certain financial instruments and all nonfinancial instruments is not required to be disclosed. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

    Financial assets and liabilities recognized or disclosed at fair value on a recurring basis and certain financial assets and liabilities on a non-recurring basis are accounted for using a three-level hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. This hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within different levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used.

    Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques:

•    Level 1 - Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities.

•    Level 2 - Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing.

•     Level 3 - Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include the following:

◦Quotes from brokers or other external sources that are not considered binding;

◦Quotes from brokers or other external sources where it cannot be determined that market participants would in fact transact for the asset or liability at the quoted price;

◦Quotes and other information from brokers or other external sources where the inputs are not deemed observable.

    We are responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. We perform due diligence to understand the inputs used or how the data was calculated or derived. We also corroborate the reasonableness of external inputs in the valuation process.

    The carrying amounts reported in the Consolidated Statement of Financial Condition approximate fair value for the following financial instruments: cash and cash equivalents, marketable securities available-for-sale, accrued interest receivable, interest rate lock commitments, forward commitments, interest rate swaps, savings and checking deposits, risk participation agreements and accrued interest payable.

Marketable Securities

Where available, market values are based on quoted market prices, dealer quotes, and prices obtained from independent pricing services.

Debt Securities — available-for-sale - Generally, debt securities are valued using pricing for similar securities, recently executed transactions and other pricing models utilizing observable inputs. The valuation for most debt securities is classified as Level 2. Securities within Level 2 include corporate bonds, municipal bonds, mortgage-backed securities and U.S. government obligations. Certain debt securities which were AAA rated at purchase do not have an active market and as such we have used an alternative method to determine the fair value of these securities. The fair value has been determined using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, securities which otherwise would have been classified as Level 2 securities if an active market for those assets or similar assets existed are included herein as Level 3 assets.

Debt Securities — held-to-maturity - The fair value of debt securities held-to-maturity is determined in the same manner as debt securities available-for-sale.

Loans Receivable

    Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Each loan pool is separately valued utilizing a discounted cash flow analysis. Projected monthly cash flows are discounted to present value using a market rate for comparable loans, which is not considered an exit price. Characteristics of comparable loans include remaining term, coupon interest, and estimated prepayment speeds. Delinquent loans are separately evaluated given the impact delinquency has on the projected future cash flow of the loan including the approximate discount or market rate, which is not considered an exit price.

Loans Held-for-Sale

    The estimated fair value of loans held-for-sale is based on market bids obtained from potential buyers.

Loans Held for Investment

    The fair value of loans held for investment is estimated using a discounted cash flow analysis that utilizes interest rates currently being offered for similar loans adjusted for liquidity and credit risk.

FHLB Stock

Due to the restrictions placed on transferability of FHLB stock, it is not practical to determine the fair value.

Deposit Liabilities

    The estimated fair value of deposits with no stated maturity, which includes demand deposits, money market, and other savings accounts, is the amount payable on demand. Although market premiums paid for depository institutions reflect an additional value for these low-cost deposits, adjusting fair value for any value expected to be derived from retaining those deposits for a future period of time or from the benefit that results from the ability to fund interest-earning assets with these deposit liabilities is prohibited. The fair value estimates of deposit liabilities do not include the benefit that results from the low-cost funding provided by these

deposits compared to the cost of borrowing funds in the market. Fair values for time deposits are estimated using a discounted cash flow calculation that applies contractual cost currently being offered in the existing portfolio to current market rates being offered locally for deposits of similar remaining maturities. The valuation adjustment for the portfolio consists of the present value of the difference of these two cash flows, discounted at the assumed market rate of the corresponding maturity.

 Borrowed Funds

Fixed rate advances are valued by comparing their contractual cost to the prevailing market cost.  The carrying amount of collateralized borrowings approximates the fair value. The fair value of our subordinated debentures is calculated using the discounted cash flows at rates observable for other similarly traded liabilities.

Junior Subordinated Debentures

The fair value of junior subordinated debentures is calculated using the discounted cash flows at the prevailing rate of interest.

Interest Rate Lock Commitments and Forward Commitments

The fair value of interest rate lock commitments is based on the value of underlying loans held-for-sale which is based on quoted prices for similar loans in the secondary market.  This value is then adjusted based on the probability of the loan closing (i.e., the “pull-through” amount, a significant unobservable input).  The fair value of forward sale commitments is based on quoted prices from the secondary market based on the settlement date of the contracts.  

Cash Flow Hedges, Interest Rate and Foreign Exchange Swap Agreements

    The fair value of interest rate swaps is based upon the present value of the expected future cash flows using the LIBOR swap curve, the basis for the underlying interest rate. To price interest rate swaps, cash flows are first projected for each payment date using the fixed rate for the fixed side of the swap and the forward rates for the floating side of the swap. These swap cash flows are then discounted to time zero using LIBOR zero-coupon interest rates. The sum of the present value of both legs is the fair market value of the interest rate swap. These valuations have been derived from our third party vendor’s proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions that we believe to be reasonable. The fair value of the foreign exchange swap is derived from proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions we believe to be reasonable. Risk participation agreements are entered into when Northwest purchases a portion of a commercial loan that has an interest rate swap. Northwest assumes credit risk on its portion of the interest rate swap should the borrower fail to pay as agreed. The value of risk participation agreements is determined based on the value of the swap after considering the credit quality, probability of default, and loss given default of the borrower.

Off-Balance Sheet Financial Instruments

These financial instruments generally are not sold or traded, and estimated fair values are not readily available. However, the fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements. Commitments to extend credit are generally short-term in nature and, if drawn upon, are issued under current market terms. At June 30, 2021 and December 31, 2020, there was no significant unrealized appreciation or depreciation on these financial instruments.

The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at June 30, 2021 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	857,152	857,152	857,152	—	—
Securities available-for-sale	1,599,024		1,599,024	—	1,599,024	—
Securities held-to-maturity	639,424		632,620	—	632,620	—
Loans receivable, net	10,163,595		10,152,694	—	—	10,152,694
Residential mortgage loans held-for-sale	29,055		29,055	—	—	29,055
Accrued interest receivable	27,585		27,585	27,585	—	—
Interest rate lock commitments	3,608		3,608	—	—	3,608
Forward commitments	393		393	—	393	—
Foreign exchange swaps	94		94	—	94	—
Interest rate swaps not designated as hedging instruments	38,054		38,054	—	38,054	—
FHLB stock	23,287		23,287	—	—	—
Total financial assets	$	13,381,271	13,363,566	884,737	2,270,185	10,185,357
Financial liabilities:
Savings and checking deposits	$	10,627,610	10,627,610	10,627,610	—	—
Time deposits	1,463,098		1,480,940	—	—	1,480,940
Borrowed funds	257,377		262,405	133,876	128,529	—
Junior subordinated debentures	128,924		121,598	—	—	121,598
Foreign exchange swaps	4		4	—	4	—
Interest rate swaps not designated as hedging instruments	38,349		38,349	—	38,349	—
Risk participation agreements	84		84	—	84	—
Accrued interest payable	1,820		1,820	1,820	—	—
Total financial liabilities	$	12,517,266	12,532,810	10,763,306	166,966	1,602,538

The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2020 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	736,277	736,277	736,277	—	—
Securities available-for-sale	1,398,941		1,398,941	—	1,398,941	—
Securities held-to-maturity	178,887		179,666	—	179,666	—
Loans receivable, net	10,387,636		10,334,521	—	—	10,334,521
Residential mortgage loans held-for-sale	58,786		58,786	—	—	58,786
Accrued interest receivable	35,554		35,554	35,554	—	—
Interest rate lock commitments	6,465		6,465	—	—	6,465
Forward commitments	1,105		1,105	—	1,105	—
Interest rate swaps not designated as hedging instruments	53,863		53,863	—	53,863	—
FHLB stock	21,748		21,748	—	—	—
Total financial assets	$	12,879,262	12,826,926	771,831	1,633,575	10,399,772
Financial liabilities:
Savings and checking accounts	$	9,957,137	9,957,137	9,957,137	—	—
Time deposits	1,642,096		1,669,546	—	—	1,669,546
Borrowed funds	283,044		283,074	159,745	123,329	—
Junior subordinated debentures	128,794		121,106	—	—	121,106
Interest rate swaps not designated as hedging instruments	54,579		54,579	—	54,579	—
Risk participation agreements	86		86	—	86	—
Accrued interest payable	2,054		2,054	2,054	—	—
Total financial liabilities	$	12,067,790	12,087,582	10,118,936	177,994	1,790,652

Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The methods and assumptions detailed above were used in estimating the fair value of financial instruments at both June 30, 2021 and December 31, 2020. 

    The following table represents assets and liabilities measured at fair value on a recurring basis at June 30, 2021 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	59,254	—	59,254
Government-sponsored enterprises	—		71,858	—	71,858
States and political subdivisions	—		115,029	—	115,029
Total debt securities	—		246,141	—	246,141
Residential mortgage-backed securities:
GNMA	—		19,887	—	19,887
FNMA	—		184,700	—	184,700
FHLMC	—		114,475	—	114,475
Non-agency	—		448	—	448
Collateralized mortgage obligations:
GNMA	—		490,520	—	490,520
FNMA	—		306,516	—	306,516
FHLMC	—		236,337	—	236,337
Total mortgage-backed securities	—		1,352,883	—	1,352,883
Interest rate lock commitments	—		—	3,608	3,608
Forward commitments	—		393	—	393
Foreign exchange swaps	—		94	—	94
Interest rate swaps not designated as hedging instruments	—		38,054	—	38,054
Total assets	$	—	1,637,565	3,608	1,641,173
Foreign exchange swaps	$	—	4	—	4
Interest rate swaps not designated as hedging instruments	—		38,349	—	38,349
Risk participation agreements	—		84	—	84
Total liabilities	$	—	38,437	—	38,437

    The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2020 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	40,917	—	40,917
Government-sponsored enterprises	—		94,507	—	94,507
States and political subdivisions	—		116,813	—	116,813
Total debt securities	—		252,237	—	252,237
Residential mortgage-backed securities:
GNMA	—		23,026	—	23,026
FNMA	—		203,571	—	203,571
FHLMC	—		134,572	—	134,572
Non-agency	—		465	—	465
Collateralized mortgage obligations:
GNMA	—		343,409	—	343,409
FNMA	—		262,109	—	262,109
FHLMC	—		179,552	—	179,552
Total mortgage-backed securities	—		1,146,704	—	1,146,704
Interest rate lock commitments	—		—	6,465	6,465
Forward commitments	—		1,105	—	1,105
Interest rate swaps not designated as hedging instruments	—		53,863	—	53,863
Total assets	$	—	1,453,909	6,465	1,460,374
Interest rate swaps not designated as hedging instruments	$	—	54,579	—	54,579
Risk participation agreements	—		86	—	86
Total liabilities	$	—	54,665	—	54,665

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

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Beginning balance	$	5,060	507	6,465	559
Total gains or losses:
Included in net income	—		—	—	—
Included in other comprehensive income	—		—	—	—
Interest rate lock commitments:
Net activity	(1,452)		6,909	(2,857)	6,857
Transfers from Level 3	—		—	—	—
Transfers into Level 3	—		—	—	—
Ending balance	$	3,608	7,416	3,608	7,416

Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans held-for-sale, loans individually assessed, real estate owned, and mortgage servicing rights. 

    The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of June 30, 2021 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	91,288	91,288
Mortgage servicing rights	—		—	2,211	2,211
Real estate owned, net	—		—	1,353	1,353
Total assets	$	—	—	94,852	94,852

    The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2020 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	95,303	95,303
Real estate owned, net	—		—	2,232	2,232
Total assets	$	—	—	97,535	97,535

    Individually Assessed Loans - A loan is considered to be individually assessed as described in Note 1(f) of the Notes to the Consolidated Financial Statements in Item 8 of Part II of our 2020 Annual Report on Form 10-K. We classify loans individually assessed as nonrecurring Level 3.

    Real Estate Owned - Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the related loan balance or fair value, less estimated disposition costs, with the fair value being determined by appraisal. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or fair value, less estimated disposition costs. We classify real estate owned as nonrecurring Level 3. 

The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at June 30, 2021 (in thousands): 

	Fair value		Valuation techniques	Significant unobservable inputs	Range  (weighted average)
Loans individually assessed	$	91,288	Appraisal value (1)	Estimated cost to sell	10.0%
			Discounted cash flow	Discount rate	10.92% to 15.4% (12.27%)
Mortgage servicing rights	2,211		Discounted cash	Annual service cost	$84
			flow	Prepayment rates	11.9% to 28.1% (22.3%)
				Expected life (months)	41.4 to 70.7 (57.3)
				Option adjusted spread	750 basis points
				Forward yield curve	0.09% to 1.56%
Real estate owned, net	$	1,353	Appraisal value (1)	Estimated cost to sell	10.0%

(1)Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

    We are a party to derivative financial instruments in the normal course of business to manage our own exposure to fluctuations in interest rates and to meet the needs of our customers. The primary derivatives that we use are interest rate swaps and caps and foreign exchange contracts, which are entered into with counterparties that meet established credit standards. We believe that the credit risk inherent in all of our derivative contracts is minimal based on our credit standards and the netting and collateral provisions of the interest rate swap agreements.

Derivatives Designated as Hedging Instruments

    During March 2020, the Company entered into four separate pay-fixed interest rate swaps in order to synthetically convert short-term three month FHLB advances to fixed-rate term funding with an aggregate value of $100 million with maturities ranging from three to five years. Our risk management objective and strategy for these interest rate swaps at such time was to reduce our

exposure to variability in interest-related cash outflows attributable to changes in the USD-LIBOR swap rate, the designated benchmark interest rate being hedged.  Based upon our contemporaneous quantitative analysis at the inception of each interest rate swap, we have determined these interest rate swaps to qualify for hedge accounting in accordance with ASC 815, Derivatives and Hedging.

    The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. During the quarter ended September 30, 2020, the Company discontinued these cash flow hedges and, as a result, reclassified a $1.3 million loss into earnings. As of June 30, 2021, the Company had no cash flow hedges.

Derivatives Not Designated as Hedging Instruments

    We act as an interest rate or foreign exchange swap counterparty for certain commercial borrowers in the normal course of servicing our customers, which are accounted for at fair value. We manage our exposure to such interest rate or foreign exchange swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the swaps we have with the commercial borrowers. These positions (referred to as “customer swaps”) directly offset each other and our exposure is the fair value of the derivatives due to changes in credit risk of our commercial borrowers and third parties. Customer swaps are recorded within other assets or other liabilities on the consolidated statement of financial condition at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the Consolidated Statement of Income.

    We enter into interest rate lock commitments for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate within a specified period of time.  Interest rate lock commitments that relate to the origination of mortgage loans that will be held-for-sale are considered derivative financial instruments under applicable accounting guidance. Interest rate lock commitments on loans held-for-sale are carried at fair value in other assets on the consolidated statement of financial condition. Northwest sells loans to the secondary market on a mandatory or best efforts basis.  The loans sold on a mandatory basis commit us to deliver a specific principal amount of mortgage loans to an investor at a specified price, by a specified date, or the commitment must be paired off. These forward commitments entered into on a mandatory delivery basis meet the definition of a derivative financial instrument. All closed loans to be sold on a mandatory delivery basis are classified as held-for-sale on the Consolidated Statement of Financial Condition. Changes to the fair value of the interest rate lock commitments and the forward commitments are recorded in mortgage banking income in the Consolidated Statements of Income.

    We enter into risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution.

    The following table presents information regarding our derivative financial instruments for the periods indicated (in thousands):

	Asset derivatives			Liability derivatives
	Notional amount		Fair value	Notional amount	Fair value
At June 30, 2021
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	602,029	38,054	602,029	38,349
Foreign exchange swap agreements	6,265		94	3,088	4
Interest rate lock commitments	127,328		3,608	—	—
Forward commitments	12,166		393	—	—
Risk participation agreements	—		—	82,157	84
Total derivatives	$	747,788	42,149	687,274	38,437
At December 31, 2020
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	599,300	53,863	599,300	54,579
Interest rate lock commitments	171,357		6,465	—	—
Forward commitments	25,474		1,105	—	—
Risk participation agreements	—		—	77,532	86
Total derivatives	$	796,131	61,433	676,832	54,665

The following table presents income or expense recognized on derivatives for the periods indicated (in thousands):

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Hedging derivatives:
Decrease in interest expense	$	—	(90)	—	(102)
Non-hedging swap derivatives:
Increase/(decrease) in other income	(26)		(345)	498	(522)
Increase in mortgage banking income	1,510		8,247	3,570	8,248

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Legal Proceedings

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Legal Proceedings

Legal Proceedings

We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. As of June 30, 2021, we do not anticipate that the aggregate ultimate liability arising out of any pending or threatened legal proceedings will be material to our Consolidated Financial Statements.  Any such accruals are adjusted thereafter as appropriate to reflect changes in circumstances. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate loss to us from legal proceedings.

    During the year-ended December 31, 2018, Northwest and our subsidiary, The Bert Company (doing business as Northwest Insurance Services) (“NWIS”), were involved in a lawsuit against, among others, First National Bank of Pennsylvania (“FNB”) and their insurance subsidiary, First National Insurance Agency, LLC (“FNIA”). All counterclaims against Northwest were discontinued and, in December 2018, a verdict was rendered in favor of NWIS on several of its claims. Post-trial proceedings have continued throughout the current year and, due to the inherent uncertainties with respect to these proceedings, we have not accrued any awards associated with this verdict within our Consolidated Financial Statements as of June 30, 2021.

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Changes in Accumulated Other Comprehensive Income

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Changes in Accumulated Other Comprehensive Income

Changes in Accumulated Other Comprehensive Income

The following tables show the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): 

	For the quarter ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2021	$	(653)	—	(50,059)	(50,712)
Other comprehensive income before reclassification adjustments (1)	4,322		—	—	4,322
Amounts reclassified from accumulated other comprehensive income (2) (3)	(136)		—	334	198
Net other comprehensive income	4,186		—	334	4,520
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

	For the quarter ended June 30, 2020
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2020	$	11,341	(409)	(39,839)	(28,907)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	4,790		(537)	—	4,253
Amounts reclassified from accumulated other comprehensive income (6) (7)	(35)		—	249	214
Net other comprehensive income/(loss)	4,755		(537)	249	4,467
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding gains, net of tax of $1,245.

(2)Consists of realized losses, net of tax of ($43).

(3)Consists of realized gains, net of tax of $128.

(4)Consists of unrealized holding gains, net of tax $1,902.

(5)Consists of realized losses, net of tax ($47).

(6)Consists of realized losses, net of tax of ($13).

(7)Consists of realized gains, net of tax of $99. 

	For the six months ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2020	$	16,843	—	(50,392)	(33,549)
Other comprehensive loss before reclassification adjustments (1)	(13,099)		—	—	(13,099)
Amounts reclassified from accumulated other comprehensive income (2) (3)	(211)		—	667	456
Net other comprehensive income/loss	(13,310)		—	667	(12,643)
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

	For the six months ended June 30, 2020
	Unrealized  gains  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2019	$	3,147	—	(40,088)	(36,941)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	12,947		(946)	—	12,001
Amounts reclassified from accumulated other comprehensive income (6) (7)	2		—	498	500
Net other comprehensive income/(loss)	12,949		(946)	498	12,501
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding losses, net of tax of ($4,736).

(2)Consists of realized losses, net of tax of ($65).

(3)Consists of realized gains, net of tax of $258.

(4)Consists of unrealized holding gains, net of tax $5,179.

(5)Consists of realized holding losses, net of tax ($209) .

(6)Consists of realized gains, net of tax of $1.

(7)Consists of realized gains, net of tax of $198.

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Basis of Presentation and Informational Disclosures (Policies)

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a bank holding company regulated by the Board of Governors of the Federal Reserve System ("FRB"). The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”).  Northwest is regulated by the Federal Deposit Insurance Corporation ("FDIC") and the Pennsylvania Department of Banking. Northwest operates 170 community-banking offices throughout Pennsylvania, Western New York, Eastern Ohio, and Indiana.

The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, The Bert Company (doing business as Northwest Insurance Services, which was sold April 30, 2021) and MutualFirst Investment Company, Inc. The unaudited Consolidated Financial Statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information or footnotes required for complete annual financial statements.  In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included.  The Consolidated Financial Statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 updated, as required, for any new pronouncements or changes.

    Certain items previously reported have been reclassified to conform to the current year's reporting format.

Income Taxes - Uncertain Tax Positions

Income Taxes-Uncertain Tax Positions

Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return.  A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits.  The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At June 30, 2021, we had $336,000 of liability for unrecognized tax benefits.

We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income.  We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2020, 2019, 2018, and 2017.

Recently Adopted Accounting Standards

Recently Adopted Accounting Standards

In August 2018, the Financial Accounting Standards Board ("FASB") issued the accounting standard update ("ASU") 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20) - Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans.” This guidance removes and adds disclosure requirements for defined benefit pension or other post-retirement plans. On January 1, 2021, the Company adopted ASU 2018-14 on a retrospective basis for disclosures impacted. The adoption of this standard did not have a material effect on our results of operations or financial position. Refer to Note 8, "Pension and Other Post-Retirement Benefits".

    In December 2019, the FASB issued ASU 2019-12, "Income Taxes - Simplifying the Accounting for Income Taxes." This guidance simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition for deferred tax liabilities for outside basis differences. ASU 2019-12 also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. On January 1, 2021, the Company adopted ASU 2019-12 on a prospective basis. The adoption of this standard did not have a material effect on our results of operations or financial position.

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Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of the portfolio of investment securities available-for-sale

The following table shows the portfolio of marketable securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S government and agencies:
Due after ten years	$	59,435	125	(306)	59,254
Debt issued by government-sponsored enterprises:
Due in less than one year	25,208		13	—	25,221
Due in five years through ten years	47,663		94	(1,120)	46,637
Municipal securities:
Due in less than one year	1,130		3	(1)	1,132
Due in one year through five years	2,234		60	—	2,294
Due in five years through ten years	20,017		556	(89)	20,484
Due after ten years	87,956		3,265	(102)	91,119
Residential mortgage-backed securities:
Fixed rate pass-through	303,717		3,587	(1,134)	306,170
Variable rate pass-through	12,968		387	(15)	13,340
Fixed rate agency CMOs	988,012		6,582	(6,981)	987,613
Variable rate agency CMOs	45,473		310	(23)	45,760
Total residential mortgage-backed securities	1,350,170		10,866	(8,153)	1,352,883
Total marketable securities available-for-sale	$	1,593,813	14,982	(9,771)	1,599,024

The following table shows the portfolio of marketable securities available-for-sale at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by the U.S. government and agencies:
Due after ten years	$	40,761	211	(55)	40,917
Debt issued by government-sponsored enterprises:
Due in less than one year	24,976		159	—	25,135
Due in one year through five years	238		3	—	241
Due in five years through ten years	68,973		238	(80)	69,131
Municipal securities:
Due in less than one year	4,008		14	—	4,022
Due in one year through five years	2,803		63	(2)	2,864
Due in five years through ten years	16,045		429	(5)	16,469
Due after ten years	89,778		3,752	(72)	93,458
Residential mortgage-backed securities:
Fixed rate pass-through	339,406		7,125	(86)	346,445
Variable rate pass-through	14,778		431	(20)	15,189
Fixed rate agency CMOs	723,586		11,758	(1,093)	734,251
Variable rate agency CMOs	50,333		519	(33)	50,819
Total residential mortgage-backed securities	1,128,103		19,833	(1,232)	1,146,704
Total marketable securities available-for-sale	$	1,375,685	24,702	(1,446)	1,398,941

Schedule of the portfolio of investment securities held-to-maturity

The following table shows the portfolio of marketable securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in one year through five years	$	16,478	—	(18)	16,460
Due in five years through ten years	107,972		—	(3,578)	104,394
Residential mortgage-backed securities:
Fixed rate pass-through	202,269		591	(658)	202,202
Variable rate pass-through	761		26	—	787
Fixed rate agency CMOs	311,341		576	(3,762)	308,155
Variable rate agency CMOs	603		19	—	622
Total residential mortgage-backed securities	514,974		1,212	(4,420)	511,766
Total marketable securities held-to-maturity	$	639,424	1,212	(8,016)	632,620

The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2020 (in thousands): 

	Amortized cost		Gross unrealized holding gains	Gross unrealized holding losses	Fair value
Debt issued by government-sponsored enterprises:
Due in five years through ten years	$	67,990	12	(123)	67,879
Residential mortgage-backed securities:
Fixed rate pass-through	1,723		131	—	1,854
Variable rate pass-through	919		30	—	949
Fixed rate agency CMOs	107,651		716	(2)	108,365
Variable rate agency CMOs	604		15	—	619
Total residential mortgage-backed securities	110,897		892	(2)	111,787
Total marketable securities held-to-maturity	$	178,887	904	(125)	179,666

The following table shows the contractual maturity of our residential mortgage-backed securities available-for-sale at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in less than one year	$	1,441	1,444
Due in one year through five years	38,662		39,130
Due after five years through ten years	253,062		255,356
Due after ten years	1,057,005		1,056,953
Total residential mortgage-backed securities	$	1,350,170	1,352,883

The following table shows the contractual maturity of our residential mortgage-backed securities held-to-maturity at June 30, 2021 (in thousands):

	Amortized cost		Fair value
Residential mortgage-backed securities:
Due in one year through five years	$	985	1,051
Due after five years through ten years	221,656		221,054
Due after ten years	292,333		289,661
Total residential mortgage-backed securities	$	514,974	511,766

Schedule of the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at June 30, 2021 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	194,872	(4,955)	1,619	(67)	196,491	(5,022)
Municipal securities	11,013		(191)	121	(1)	11,134	(192)
Residential mortgage-backed securities - agency	1,099,202		(12,528)	8,791	(45)	1,107,993	(12,573)
Total	$	1,305,087	(17,674)	10,531	(113)	1,315,618	(17,787)

The following table shows the fair value of and gross unrealized losses on marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2020 (in thousands):

	Less than 12 months			12 months or more		Total
	Fair  value		Unrealized loss	Fair  value	Unrealized loss	Fair  value	Unrealized loss
U.S. government-sponsored enterprises	$	67,809	(179)	1,923	(80)	69,732	(259)
Municipal securities	4,257		(79)	—	—	4,257	(79)
Residential mortgage-backed securities - agency	300,767		(1,202)	5,533	(31)	306,300	(1,233)
Total	$	372,833	(1,460)	7,456	(111)	380,289	(1,571)

Schedule of credit quality of held-to-maturity securities

The following table presents the credit quality of our held-to-maturity securities, based on the latest information available as of June 30, 2021. The credit ratings are sourced from nationally recognized rating agencies, which include Moody's and S&P, or when credit ratings cannot be sourced from the agencies, they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of June 30, 2021.

	AA+		Total
Held-to-maturity securities:
Debt issued by government-sponsored enterprises	$	124,450	124,450
Residential mortgage-backed securities	514,974		514,974
Total marketable securities held-to-maturity	$	639,424	639,424

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Loans Receivable (Tables)

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Summary of loans receivable

The following table shows a summary of our loans receivable at amortized cost basis at June 30, 2021 and December 31, 2020 (in thousands): 

	June 30, 2021				December 31, 2020
	Originated		Acquired	Total	Originated	Acquired	Total
Personal Banking:
Residential mortgage loans (1)	$	2,701,046	253,505	2,954,551	2,753,593	314,528	3,068,121
Home equity loans	1,127,884		248,344	1,376,228	1,175,703	292,033	1,467,736
Vehicle loans	1,266,181		125,339	1,391,520	995,040	157,633	1,152,673
Consumer loans	299,163		54,548	353,711	288,066	67,254	355,320
Total Personal Banking	5,394,274		681,736	6,076,010	5,212,402	831,448	6,043,850
Commercial Banking:
Commercial real estate loans	2,258,220		524,831	2,783,051	2,223,108	624,873	2,847,981
Commercial real estate loans - owner occupied	327,039		105,099	432,138	344,016	153,892	497,908
Commercial loans	899,035		119,746	1,018,781	1,019,482	171,628	1,191,110
Total Commercial Banking	3,484,294		749,676	4,233,970	3,586,606	950,393	4,536,999
Total loans receivable, gross	8,878,568		1,431,412	10,309,980	8,799,008	1,781,841	10,580,849
Allowance for credit losses	(90,375)		(26,955)	(117,330)	(102,874)	(31,553)	(134,427)
Total loans receivable, net (2)	$	8,788,193	1,404,457	10,192,650	8,696,134	1,750,288	10,446,422

(1)     Includes fair value of $29.1 million and $58.8 million of loans held-for-sale at June 30, 2021 and December 31, 2020, respectively.

(2)    Includes $48.7 million and $40.9 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at June 30, 2021 and December 31, 2020, respectively.

Schedule of the changes in the allowance for losses on loans receivable

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of March 31, 2021
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,922	(770)	234	5,861
Home equity loans	7,239		2,253	(379)	124	5,241
Vehicle loans	12,888		(1,196)	(1,598)	794	14,888
Consumer loans	2,801		691	(803)	350	2,563
Total Personal Banking	30,175		3,670	(3,550)	1,502	28,553
Commercial Banking:
Commercial real estate loans	64,580		(2,925)	(3,074)	373	70,206
Commercial real estate loans - owner occupied	4,729		(1,138)	(890)	4	6,753
Commercial loans	17,846		393	(1,161)	129	18,485
Total Commercial Banking	87,155		(3,670)	(5,125)	506	95,444
Total	$	117,330	—	(8,675)	2,008	123,997
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		8	—	—	34
Total Personal Banking	44		8	—	—	36
Commercial Banking:
Commercial real estate loans	1,932		(183)	—	—	2,115
Commercial real estate loans - owner occupied	181		(207)	—	—	388
Commercial loans	1,232		(848)	—	—	2,080
Total Commercial Banking	3,345		(1,238)	—	—	4,583
Total off-balance sheet exposure	$	3,389	(1,230)	—	—	4,619

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended June 30, 2020, and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Balance as of March 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	(30)	(38)	8	1,095	10,673
Home equity loans	9,363		(542)	(173)	76	216	9,786
Vehicle loans	13,835		2,949	(1,763)	420	235	11,994
Consumer loans	2,506		(1,789)	(1,428)	400	157	5,166
Total Personal Banking	37,412		588	(3,402)	904	1,703	37,619
Commercial Banking:
Commercial real estate loans	72,833		37,969	(690)	454	5,720	29,380
Commercial real estate loans - owner occupied	14,827		5,482	—	8	963	8,374
Commercial loans	15,514		7,711	(10,349)	169	459	17,524
Total Commercial Banking	103,174		51,162	(11,039)	631	7,142	55,278
Total	$	140,586	51,750	(14,441)	1,535	8,845	92,897
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	4	—	—	—	34
Total Personal Banking	38		4	—	—	—	34
Commercial Banking:
Commercial real estate loans	5,135		1,841	—	—	—	3,294
Commercial real estate loans - owner occupied	626		531	—	—	—	95
Commercial loans	4,384		3,103	—	—	—	1,281
Total Commercial Banking	10,145		5,475	—	—	—	4,670
Total off-balance sheet exposure	$	10,183	5,479	—	—	—	4,704

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2021 (in thousands):

	Balance as of June 30, 2021		Current period provision	Charge-offs	Recoveries	Balance as of December 31, 2020
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	7,247	1,330	(1,625)	276	7,266
Home equity loans	7,239		1,601	(607)	253	5,992
Vehicle loans	12,888		(423)	(2,905)	1,391	14,825
Consumer loans	2,801		1,342	(2,099)	687	2,871
Total Personal Banking	30,175		3,850	(7,236)	2,607	30,954
Commercial Banking:
Commercial real estate loans	64,580		(7,756)	(7,700)	655	79,381
Commercial real estate loans - owner occupied	4,729		(4,904)	(890)	5	10,518
Commercial loans	17,846		3,190	(1,215)	2,297	13,574
Total Commercial Banking	87,155		(9,470)	(9,805)	2,957	103,473
Total	$	117,330	(5,620)	(17,041)	5,564	134,427
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Residential mortgage loans	$	2	—	—	—	2
Home equity loans	42		7	—	—	35
Total Personal Banking	44		7	—	—	37
Commercial Banking:
Commercial real estate loans	1,932		(1,517)	—	—	3,449
Commercial real estate loans - owner occupied	181		(145)	—	—	326
Commercial loans	1,232		(1,319)	—	—	2,551
Total Commercial Banking	3,345		(2,981)	—	—	6,326
Total off-balance sheet exposure	$	3,389	(2,974)	—	—	6,363

The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the six months ended June 30, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands):

	Balance as of June 30, 2020		Current period provision	Charge-offs	Recoveries	Initial ACL on loans purchased with credit deterioration	Cumulative effect of ASU 2016-13*	Balance as of December 31, 2019
Allowance for Credit Losses
Personal Banking:
Residential mortgage loans	$	11,708	864	(381)	115	1,095	7,441	2,574
Home equity loans	9,363		353	(462)	281	216	5,786	3,189
Vehicle loans	13,835		8,308	(3,606)	764	235	842	7,292
Consumer loans	2,506		1,729	(3,073)	816	157	(2,424)	5,301
Total Personal Banking	37,412		11,254	(7,522)	1,976	1,703	11,645	18,356
Commercial Banking:
Commercial real estate loans	72,833		49,238	(1,000)	744	5,720	2,288	15,843
Commercial real estate loans - owner occupied	14,827		6,847	(21)	15	963	1,278	5,745
Commercial loans	15,514		12,048	(11,164)	593	459	(4,419)	17,997
Total Commercial Banking	103,174		68,133	(12,185)	1,352	7,142	(853)	39,585
Total	$140,586		79,387	(19,707)	3,328	8,845	10,792	57,941
Allowance for Credit Losses - off-balance sheet exposure
Personal Banking:
Home equity loans	$	38	8	—	—	—	(293)	323
Consumer loans	—		—	—	—	—	(402)	402
Total Personal Banking	38		8	—	—	—	(695)	725
Commercial Banking:
Commercial real estate loans	5,135		3,124	—	—	—	1,934	77
Commercial real estate loans - owner occupied	626		535	—	—	—	88	3
Commercial loans	4,384		3,292	—	—	—	923	169
Total Commercial Banking	10,145		6,951	—	—	—	2,945	249
Total off-balance sheet exposure	$	10,183	6,959	—	—	—	2,250	974

* Includes the impact of the initial allowance on PCD loans of $517,000.

Schedule of loan portfolio by portfolio segment and by class of financing receivable

The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at June 30, 2021 (in thousands):

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	2,954,551	7,247	10,471	—	7,347	944	—
Home equity loans	1,376,228		7,239	6,965	—	1,968	652	—
Vehicle loans	1,391,520		12,888	2,579	—	—	—	—
Consumer loans	353,711		2,801	477	302	—	—	—
Total Personal Banking	6,076,010		30,175	20,492	302	9,315	1,596	—
Commercial Banking:
Commercial real estate loans	2,783,051		64,580	162,301	—	14,588	890	500
Commercial real estate loans - owner occupied	432,138		4,729	1,870	—	452	162	—
Commercial loans	1,018,781		17,846	22,098	—	3,076	315	765
Total Commercial Banking	4,233,970		87,155	186,269	—	18,116	1,367	1,265
Total	$	10,309,980	117,330	206,761	302	27,431	2,963	1,265

(1)Includes $9.0 million of nonaccrual TDRs.

    The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2020 (in thousands): 

	Total loans receivable		Allowance for credit losses	Nonaccrual loans (1)	Loans 90 days past due and accruing	TDRs	Allowance related to TDRs	Additional commitments to customers with loans classified as TDRs
Personal Banking:
Residential mortgage loans	$	3,068,121	7,266	15,924	—	8,431	560	—
Home equity loans	1,467,736		5,992	9,123	—	2,058	381	26
Vehicle loans	1,152,673		14,825	5,533	1	—	—	—
Consumer loans	355,320		2,871	1,031	584	1	—	—
Total Personal Banking	6,043,850		30,954	31,611	585	10,490	941	26
Commercial Banking:
Commercial real estate loans	2,847,981		79,381	44,092	—	18,430	787	471
Commercial real estate loans - owner occupied	497,908		10,518	3,642	—	761	123	—
Commercial loans	1,191,110		13,574	23,487	—	2,454	165	362
Total Commercial Banking	4,536,999		103,473	71,221	—	21,645	1,075	833
Total	$	10,580,849	134,427	102,832	585	32,135	2,016	859

(1)Includes $10.7 million of nonaccrual TDRs.

Schedule of the composition of impaired loans by portfolio segment and by class of financing receivable

The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the quarter ended June 30, 2021 (in thousands): 

	Nonaccrual loans at January 1, 2021		Nonaccrual loans at June 30, 2021 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	15,924	10,471	—	—
Home equity loans	9,123		6,773	192	—
Vehicle loans	5,533		2,576	3	—
Consumer loans	1,031		477	—	302
Total Personal Banking	31,611		20,297	195	302
Commercial Banking:
Commercial real estate loans	44,092		101,472	60,829	—
Commercial real estate loans - owner occupied	3,642		1,870	—	—
Commercial loans	23,487		17,323	4,775	—
Total Commercial Banking	71,221		120,665	65,604	—
Total	$	102,832	140,962	65,799	302

The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the year ended December 31, 2020 (in thousands): 

	Nonaccrual loans at January 1, 2020		Nonaccrual loans at December 31, 2020 with an allowance	Nonaccrual loans with no allowance	Loans 90 days past due and accruing
Personal Banking:
Residential mortgage loans	$	14,476	15,923	—	—
Home equity loans	6,745		8,872	252	—
Vehicle loans	3,147		5,377	156	1
Consumer loans	1,079		1,030	1	584
Total Personal Banking	25,447		31,202	409	585
Commercial Banking:
Commercial real estate loans	18,832		27,079	17,013	—
Commercial real estate loans - owner occupied	16,032		3,642	—	—
Commercial loans	8,559		18,069	5,418	—
Total Commercial Banking	43,423		48,790	22,431	—
Total	$	68,870	79,992	22,840	585

During the year ended December 31, 2020, we recognized $842,000 of interest income on nonaccrual and troubled debt restructuring loans.

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of June 30, 2021 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	586	—	—	586
Home equity loans	99		—	—	99
Total Personal Banking	685		—	—	685
Commercial Banking:
Commercial real estate loans	150,426		1,852	3,432	155,710
Commercial loans	2,851		10,069	4,403	17,323
Total Commercial Banking	153,277		11,921	7,835	173,033
Total	$	153,962	11,921	7,835	173,718

The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of December 31, 2020 (in thousands):

	Real estate		Equipment	Other	Total
Personal Banking:
Residential mortgage loans	$	1,269	—	—	1,269
Home equity loans	99		—	—	99
Total Personal Banking	1,368		—	—	1,368
Commercial Banking:
Commercial real estate loans	79,392		1,997	1,703	83,092
Commercial loans	3,313		197	11,069	14,579
Total Commercial Banking	82,705		2,194	12,772	97,671
Total	$	84,073	2,194	12,772	99,039

Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable

The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands):

	For the quarter ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	164	$	27,510	171	$	33,352
New TDRs	2	2,295		1	67
Re-modified TDRs	1	344		2	3,436
Net paydowns	—	(1,610)		—	(1,194)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		—	—
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	2	(302)		—	—
Commercial real estate loans - owner occupied	—	—		1	(25)
Commercial loans	1	(69)		2	(183)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

	For the six months ended June 30,
	2021			2020
	Number of contracts	Amount		Number of contracts	Amount
Beginning TDR balance:	170	$	32,135	176	$	31,999
New TDRs	2	2,295		3	84
Re-modified TDRs	5	1,241		3	5,487
Net paydowns	—	(4,073)		—	(1,509)
Charge-offs:
Residential mortgage loans	—	—		—	—
Home equity loans	—	—		1	(10)
Vehicle loans	—	—		—	—
Commercial real estate loans	—	—		—	—
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Paid-off loans:
Residential mortgage loans	4	(726)		2	(330)
Home equity loans	1	(11)		2	(3)
Vehicle loans	—	—		—	—
Commercial real estate loans	5	(2,686)		1	(26)
Commercial real estate loans - owner occupied	1	(47)		1	(25)
Commercial loans	3	(697)		5	(217)
Ending TDR balance:	158	$	27,431	167	$	35,450
Accruing TDRs		$	18,480		$	17,888
Nonaccrual TDRs		8,951			17,562

    The following table provides information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands):

	For the quarter ended June 30, 2021					For the six months ended June 30, 2021
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	1	$	121	116	10
Home equity loans	—	—		—	—	1	3		—	—
Total Personal Banking	—	—		—	—	2	124		116	10
Commercial Banking:
Commercial real estate loans	1	725		343	34	3	1,537		1,125	148
Commercial loans	2	2,396		2,295	—	2	2,396		2,295	—
Total Commercial Banking	3	3,121		2,638	34	5	3,933		3,420	148
Total	3	$	3,121	2,638	34	7	$	4,057	3,536	158

	For the quarter ended June 30, 2020					For the six months ended June 30, 2020
	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	$	—	—	—
Home equity loans	1	67		67	12	2	86		84	15
Vehicle loans	—	—		—	—	—	—		—	—
Consumer loans	—	—		—	—	—	—		—	—
Total Personal Banking	1	67		67	12	2	86		84	15
Commercial Banking:
Commercial real estate loans	1	454		454	58	1	454		454	58
Commercial real estate loans - owner occupied	—	—		—	—	2	2,077		2,051	131
Commercial loans	1	2,500		2,982	—	1	2,500		2,982	—
Total Commercial Banking	2	2,954		3,436	58	4	5,031		5,487	189
Total	3	$	3,021	3,503	70	6	$	5,117	5,571	204

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	—	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	—	—		—	—	—	—
Commercial Banking:
Commercial real estate loans	1	—		—	343	—	343
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	3	—		—	2,638	—	2,638
Total	3	$	—	—	2,638	—	2,638

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	1	67		—	—	—	67
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	1	67		—	—	—	67
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	2	—		454	—	2,982	3,436
Total	3	$	67	454	—	2,982	3,503

The following table provides information as of June 30, 2021 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2021 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	1	$	116	—	—	—	116
Home equity loans	1	—		—	—	—	—
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	116		—	—	—	116
Commercial Banking:
Commercial real estate loans	3	—		—	1,052	73	1,125
Commercial real estate loans - owner occupied	—	—		—	—	—	—
Commercial loans	2	—		—	2,295	—	2,295
Total Commercial Banking	5	—		—	3,347	73	3,420
Total	7	$	116	—	3,347	73	3,536

The following table provides information as of June 30, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the six months ended June 30, 2020 (in thousands):

		Type of modification
	Number of contracts	Rate		Payment	Maturity date	Other	Total
Personal Banking:
Residential mortgage loans	—	$	—	—	—	—	—
Home equity loans	2	67		—	17	—	84
Vehicle loans	—	—		—	—	—	—
Consumer loans	—	—		—	—	—	—
Total Personal Banking	2	67		—	17	—	84
Commercial Banking:
Commercial real estate loans	1	—		454	—	—	454
Commercial real estate loans - owner occupied	2	—		—	2,051	—	2,051
Commercial loans	1	—		—	—	2,982	2,982
Total Commercial Banking	4	—		454	2,051	2,982	5,487
Total	6	$	67	454	2,068	2,982	5,571

The following table provides information related to troubled debt restructurings modified within the previous twelve months

of June 30, 2021 that subsequently defaulted:

	Number of contracts	Recorded investment at the time of modification		Current recorded investment	Current allowance
Personal Banking:
Residential mortgage loans	—	$	—	—	—
Home equity loans	—	—		—	—
Vehicle loans	—	—		—	—
Consumer loans	—	—		—	—
Total Personal Banking	—	—		—	—
Commercial Banking:
Commercial real estate loans	1	454		454	50
Commercial real estate loans - owner occupied	—	—		—	—
Commercial loans	—	—		—	—
Total Commercial Banking	1	$	454	454	50
Total	1	$	454	454	50

Schedule of loan delinquencies

The following table provides information related to the amortized cost basis of loan payment delinquencies at June 30, 2021 (in thousands):

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 Days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	606	4,051	10,007	14,664	2,939,887	2,954,551	—
Home equity loans	3,677		1,502	6,256	11,435	1,364,793	1,376,228	—
Vehicle loans	4,475		1,392	1,917	7,784	1,383,736	1,391,520	—
Consumer loans	1,096		596	726	2,418	351,293	353,711	302
Total Personal Banking	9,854		7,541	18,906	36,301	6,039,709	6,076,010	302
Commercial Banking:
Commercial real estate loans	2,857		1,335	22,702	26,894	2,756,157	2,783,051	—
Commercial real estate loans - owner occupied	—		—	862	862	431,276	432,138	—
Commercial loans	686		27	4,126	4,839	1,013,942	1,018,781	—
Total Commercial Banking	3,543		1,362	27,690	32,595	4,201,375	4,233,970	—
Total loans	$	13,397	8,903	46,596	68,896	10,241,084	10,309,980	302

The following table provides information related to the amortized cost basis of loan payment delinquencies at December 31, 2020 (in thousands): 

	30-59 days delinquent		60-89 days delinquent	90 days or greater delinquent	Total delinquency	Current	Total loans receivable	90 days or greater delinquent and accruing
Personal Banking:
Residential mortgage loans	$	28,797	5,083	14,489	48,369	3,019,752	3,068,121	—
Home equity loans	4,763		1,656	8,441	14,860	1,452,876	1,467,736	—
Vehicle loans	7,707		1,776	4,599	14,082	1,138,592	1,152,674	1
Consumer loans	2,867		966	1,459	5,292	350,027	355,319	584
Total Personal Banking	44,134		9,481	28,988	82,603	5,961,247	6,043,850	585
Commercial Banking:
Commercial real estate loans	6,692		1,615	23,307	31,614	2,816,366	2,847,980	—
Commercial real estate loans - owner occupied	4,231		—	1,980	6,211	491,698	497,909	—
Commercial loans	6,405		864	7,325	14,594	1,176,516	1,191,110	—
Total Commercial Banking	17,328		2,479	32,612	52,419	4,484,580	4,536,999	—
Total originated loans	$	61,462	11,960	61,600	135,022	10,445,827	10,580,849	585

Schedule of credit quality indicators

The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of June 30, 2021 (in thousands): 

	YTD June 30, 2021		2020	2019	2018	2017	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	300,509	641,609	348,382	185,748	204,651	1,256,519	—	—	2,937,418
Substandard	—		495	—	1,343	1,059	14,236	—	—	17,133
Total residential mortgage loans	300,509		642,104	348,382	187,091	205,710	1,270,755	—	—	2,954,551
Home equity loans
Pass	76,844		242,949	162,871	77,955	72,820	251,135	440,990	42,201	1,367,765
Substandard	—		66	245	200	424	4,656	1,800	1,072	8,463
Total home equity loans	76,844		243,015	163,116	78,155	73,244	255,791	442,790	43,273	1,376,228
Vehicle loans
Pass	494,650		369,808	272,201	163,243	49,891	39,147	—	—	1,388,940
Substandard	12		208	790	677	459	434	—	—	2,580
Total vehicle loans	494,662		370,016	272,991	163,920	50,350	39,581	—	—	1,391,520
Consumer loans
Pass	68,379		103,618	62,378	26,667	12,898	15,131	62,071	1,790	352,932
Substandard	129		89	125	39	17	34	318	28	779
Total consumer loans	68,508		103,707	62,503	26,706	12,915	15,165	62,389	1,818	353,711
Total Personal Banking	940,523		1,358,842	846,992	455,872	342,219	1,581,292	505,179	45,091	6,076,010
Business Banking:
Commercial real estate loans
Pass	132,129		455,283	445,635	293,714	249,646	778,071	29,786	16,779	2,401,043
Special Mention	599		1,333	27,316	2,604	6,901	21,311	669	—	60,733
Substandard	—		33,432	21,064	64,704	59,893	134,247	593	7,342	321,275
Total commercial real estate loans	132,728		490,048	494,015	361,022	316,440	933,629	31,048	24,121	2,783,051
Commercial real estate loans - owner occupied
Pass	20,891		30,499	58,526	80,173	59,144	126,007	1,849	3,602	380,691
Special Mention	—		—	2,719	1,175	4,152	3,453	935	—	12,434
Substandard	—		—	2,832	1,456	11,743	22,443	368	171	39,013
Total commercial real estate loans - owner occupied	20,891		30,499	64,077	82,804	75,039	151,903	3,152	3,773	432,138
Commercial loans
Pass	267,471		163,309	87,765	38,255	41,393	101,885	229,252	14,335	943,665
Special Mention	587		5,279	837	1,018	190	708	2,647	—	11,266
Substandard	234		7,089	7,236	6,470	5,191	3,548	16,487	17,595	63,850
Total commercial loans	268,292		175,677	95,838	45,743	46,774	106,141	248,386	31,930	1,018,781
Total Business Banking	421,911		696,224	653,930	489,569	438,253	1,191,673	282,586	59,824	4,233,970
Total loans	$	1,362,434	2,055,066	1,500,922	945,441	780,472	2,772,965	787,765	104,915	10,309,980

The following table presents the amortized cost basis of our loan portfolio by year of origination and credit quality indicator for each portfolio segment as of December 31, 2020 (in thousands): 

	YTD December 31, 2020		2019	2018	2017	2016	Prior	Revolving loans	Revolving loans converted to term loans	Total loans receivable
Personal Banking:
Residential mortgage loans
Pass	$	641,963	418,057	229,477	247,426	215,893	1,289,728	—	—	3,042,544
Substandard	—		68	1,293	1,674	1,091	21,451	—	—	25,577
Total residential mortgage loans	641,963		418,125	230,770	249,100	216,984	1,311,179	—	—	3,068,121
Home equity loans
Pass	273,076		193,439	94,757	87,717	81,212	219,061	465,453	40,759	1,455,474
Substandard	—		210	318	281	876	5,158	3,509	1,910	12,262
Total home equity loans	273,076		193,649	95,075	87,998	82,088	224,219	468,962	42,669	1,467,736
Vehicle loans
Pass	448,746		352,661	218,372	70,122	31,197	24,791	—	—	1,145,889
Substandard	343		1,958	2,087	1,210	667	519	—	—	6,784
Total vehicle loans	449,089		354,619	220,459	71,332	31,864	25,310	—	—	1,152,673
Consumer loans
Pass	128,809		83,419	35,183	17,439	7,848	11,757	66,965	1,695	353,115
Substandard	133		399	139	192	36	619	686	1	2,205
Total consumer loans	128,942		83,818	35,322	17,631	7,884	12,376	67,651	1,696	355,320
Total Personal Banking	1,493,070		1,050,211	581,626	426,061	338,820	1,573,084	536,613	44,365	6,043,850
Business Banking:
Commercial real estate loans
Pass	417,390		473,115	316,045	264,702	195,168	709,459	36,980	29,755	2,442,614
Special Mention	584		3,381	20,180	24,675	15,424	15,817	597	3,048	83,706
Substandard	7,426		4,007	57,694	56,991	24,056	140,147	2,240	29,100	321,661
Total commercial real estate loans	425,400		480,503	393,919	346,368	234,648	865,423	39,817	61,903	2,847,981
Commercial real estate loans - owner occupied
Pass	24,895		67,162	87,497	71,626	46,760	100,081	4,422	7,648	410,091
Special Mention	—		4,371	4,514	3,643	4,276	3,689	3,822	—	24,315
Substandard	—		21,627	1,903	12,898	4,013	21,777	874	410	63,502
Total commercial real estate loans - owner occupied	24,895		93,160	93,914	88,167	55,049	125,547	9,118	8,058	497,908
Commercial loans
Pass	479,436		99,877	50,915	51,858	58,597	49,178	286,467	16,170	1,092,498
Special Mention	5,828		2,751	5,579	4,588	162	190	16,512	5,668	41,278
Substandard	1,660		3,343	2,932	2,016	2,266	3,003	27,988	14,126	57,334
Total commercial loans	486,924		105,971	59,426	58,462	61,025	52,371	330,967	35,964	1,191,110
Total Business Banking	937,219		679,634	547,259	492,997	350,722	1,043,341	379,902	105,925	4,536,999
Total loans	$	2,430,289	1,729,845	1,128,885	919,058	689,542	2,616,425	916,515	150,290	10,580,849

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets subject to amortization

The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands):

	June 30, 2021		December 31, 2020
Amortizable intangible assets:
Core deposit intangibles - gross	$	74,899	71,182
Acquisitions	—		3,717
Less: accumulated amortization	(59,680)		(56,896)
Core deposit intangibles - net	$	15,219	18,003
Customer and Contract intangible assets - gross	$	12,775	12,775
Customer list intangible assets disposed of due to sale of insurance business	(1,591)		—
Less: accumulated amortization	(11,041)		(10,842)
Customer and Contract intangible assets - net	143		1,933
Total intangible assets - net	$	15,362	19,936

Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets

The following table shows the actual aggregate amortization expense for the quarters ended June 30, 2021 and 2020, as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands):

For the quarter ended June 30, 2021	$	1,433
For the quarter ended June 30, 2020	1,760
For the six months ended June 30, 2021	3,027
For the six months ended June 30, 2020	3,411
For the year ending December 31, 2021	5,509
For the year ending December 31, 2022	4,277
For the year ending December 31, 2023	3,270
For the year ending December 31, 2024	2,452
For the year ending December 31, 2025	1,662
For the year ending December 31, 2026	871

Schedule of the changes in carrying amount of goodwill

The following table provides information for the changes in the carrying amount of goodwill (in thousands):

	Total
Balance at December 31, 2019	$	346,103
Goodwill acquired	36,176
Balance at December 31, 2020	382,279
Purchase accounting adjustment	77
Goodwill disposed of due to sale of insurance business	(1,359)
Balance at June 30, 2021	$	380,997

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Borrowed Funds (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of borrowed funds

Borrowings

	June 30, 2021
	Amount		Average rate
Collateralized borrowings, due within one year	$	133,876	0.19	%
Subordinated debentures, net of issuance costs	123,501		4.00	%
Total borrowed funds	$	257,377

Debt securities held-to-maturity on preferred securities and junior subordinated debt held by the trust

The following table sets forth a summary of the cumulative trust preferred securities and the junior subordinated debt held by the Trust as of June 30, 2021.

	Maturity date	Interest rate	Capital debt securities	June 30, 2021
Northwest Bancorp Capital Trust III	December 30, 2035	3-month LIBOR plus 1.38%	$50,000	$	51,547
Northwest Bancorp Statutory Trust IV	December 15, 2035	3-month LIBOR plus 1.38%	50,000	51,547
LNB Trust II	June 15, 2037	3-month LIBOR plus 1.48%	7,875	8,119
UNCT I (1)	January 23, 2034	3-month LIBOR plus 2.85%	8,000	7,938
UNCT II (1)	November 23, 2034	3-month LIBOR plus 2.00%	3,000	2,727
MFBC Statutory Trust I (1)	September 15, 2035	3-month LIBOR plus 1.70%	5,000	3,528
Universal Preferred Trust (1)	October 7, 2035	3-month LIBOR plus 1.69%	5,000	3,518
				$	128,924

(1) Net of discounts due to the fair value adjustment made at the time of acquisition.

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of earnings per share

The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): 

	Quarter ended June 30,			Six months ended June 30,
	2021		2020	2021	2020
Net income	$	48,967	(6,200)	89,204	1,739
Less: Dividends and undistributed earnings allocated to participating securities	340		(47)	619	13
Net income available to common shareholders	$	48,627	(6,153)	88,585	1,726
Weighted average common shares outstanding	126,749,707		121,480,563	126,456,814	113,672,131
Add: Participating shares outstanding	887,958		982,754	887,958	982,754
Total weighted average common shares and dilutive potential shares	$	127,637,665	122,463,317	127,344,772	114,654,885
Basic earnings per share	$	0.38	(0.05)	0.70	0.02
Diluted earnings per share	$	0.38	(0.05)	0.70	0.02

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Pension and Other Post-Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans

The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands):

	Quarter ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	2,860	2,098	—	—
Interest cost	1,518		1,714	5	6
Expected return on plan assets	(3,465)		(3,091)	—	—
Amortization of prior service cost	(581)		(581)	—	—
Amortization of the net loss	1,040		924	3	4
Net periodic cost	$	1,372	1,064	8	10

	Six months ended June 30,
	Pension benefits			Other post-retirement benefits
	2021		2020	2021	2020
Service cost	$	5,720	4,196	—	—
Interest cost	3,035		3,427	9	13
Expected return on plan assets	(6,930)		(6,182)	—	—
Amortization of prior service cost	(1,161)		(1,161)	—	—
Amortization of the net loss	2,079		1,848	7	9
Net periodic cost	$	2,743	2,128	16	22

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Disclosures About Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition

The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at June 30, 2021 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	857,152	857,152	857,152	—	—
Securities available-for-sale	1,599,024		1,599,024	—	1,599,024	—
Securities held-to-maturity	639,424		632,620	—	632,620	—
Loans receivable, net	10,163,595		10,152,694	—	—	10,152,694
Residential mortgage loans held-for-sale	29,055		29,055	—	—	29,055
Accrued interest receivable	27,585		27,585	27,585	—	—
Interest rate lock commitments	3,608		3,608	—	—	3,608
Forward commitments	393		393	—	393	—
Foreign exchange swaps	94		94	—	94	—
Interest rate swaps not designated as hedging instruments	38,054		38,054	—	38,054	—
FHLB stock	23,287		23,287	—	—	—
Total financial assets	$	13,381,271	13,363,566	884,737	2,270,185	10,185,357
Financial liabilities:
Savings and checking deposits	$	10,627,610	10,627,610	10,627,610	—	—
Time deposits	1,463,098		1,480,940	—	—	1,480,940
Borrowed funds	257,377		262,405	133,876	128,529	—
Junior subordinated debentures	128,924		121,598	—	—	121,598
Foreign exchange swaps	4		4	—	4	—
Interest rate swaps not designated as hedging instruments	38,349		38,349	—	38,349	—
Risk participation agreements	84		84	—	84	—
Accrued interest payable	1,820		1,820	1,820	—	—
Total financial liabilities	$	12,517,266	12,532,810	10,763,306	166,966	1,602,538

The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2020 (in thousands): 

	Carrying amount		Estimated fair value	Level 1	Level 2	Level 3
Financial assets:
Cash and cash equivalents	$	736,277	736,277	736,277	—	—
Securities available-for-sale	1,398,941		1,398,941	—	1,398,941	—
Securities held-to-maturity	178,887		179,666	—	179,666	—
Loans receivable, net	10,387,636		10,334,521	—	—	10,334,521
Residential mortgage loans held-for-sale	58,786		58,786	—	—	58,786
Accrued interest receivable	35,554		35,554	35,554	—	—
Interest rate lock commitments	6,465		6,465	—	—	6,465
Forward commitments	1,105		1,105	—	1,105	—
Interest rate swaps not designated as hedging instruments	53,863		53,863	—	53,863	—
FHLB stock	21,748		21,748	—	—	—
Total financial assets	$	12,879,262	12,826,926	771,831	1,633,575	10,399,772
Financial liabilities:
Savings and checking accounts	$	9,957,137	9,957,137	9,957,137	—	—
Time deposits	1,642,096		1,669,546	—	—	1,669,546
Borrowed funds	283,044		283,074	159,745	123,329	—
Junior subordinated debentures	128,794		121,106	—	—	121,106
Interest rate swaps not designated as hedging instruments	54,579		54,579	—	54,579	—
Risk participation agreements	86		86	—	86	—
Accrued interest payable	2,054		2,054	2,054	—	—
Total financial liabilities	$	12,067,790	12,087,582	10,118,936	177,994	1,790,652

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table represents assets and liabilities measured at fair value on a recurring basis at June 30, 2021 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	59,254	—	59,254
Government-sponsored enterprises	—		71,858	—	71,858
States and political subdivisions	—		115,029	—	115,029
Total debt securities	—		246,141	—	246,141
Residential mortgage-backed securities:
GNMA	—		19,887	—	19,887
FNMA	—		184,700	—	184,700
FHLMC	—		114,475	—	114,475
Non-agency	—		448	—	448
Collateralized mortgage obligations:
GNMA	—		490,520	—	490,520
FNMA	—		306,516	—	306,516
FHLMC	—		236,337	—	236,337
Total mortgage-backed securities	—		1,352,883	—	1,352,883
Interest rate lock commitments	—		—	3,608	3,608
Forward commitments	—		393	—	393
Foreign exchange swaps	—		94	—	94
Interest rate swaps not designated as hedging instruments	—		38,054	—	38,054
Total assets	$	—	1,637,565	3,608	1,641,173
Foreign exchange swaps	$	—	4	—	4
Interest rate swaps not designated as hedging instruments	—		38,349	—	38,349
Risk participation agreements	—		84	—	84
Total liabilities	$	—	38,437	—	38,437

    The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2020 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Debt securities:
U.S. government and agencies	$	—	40,917	—	40,917
Government-sponsored enterprises	—		94,507	—	94,507
States and political subdivisions	—		116,813	—	116,813
Total debt securities	—		252,237	—	252,237
Residential mortgage-backed securities:
GNMA	—		23,026	—	23,026
FNMA	—		203,571	—	203,571
FHLMC	—		134,572	—	134,572
Non-agency	—		465	—	465
Collateralized mortgage obligations:
GNMA	—		343,409	—	343,409
FNMA	—		262,109	—	262,109
FHLMC	—		179,552	—	179,552
Total mortgage-backed securities	—		1,146,704	—	1,146,704
Interest rate lock commitments	—		—	6,465	6,465
Forward commitments	—		1,105	—	1,105
Interest rate swaps not designated as hedging instruments	—		53,863	—	53,863
Total assets	$	—	1,453,909	6,465	1,460,374
Interest rate swaps not designated as hedging instruments	$	—	54,579	—	54,579
Risk participation agreements	—		86	—	86
Total liabilities	$	—	54,665	—	54,665

Schedule of changes in Level 3 assets and liabilities measured at fair value on a recurring basis

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

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Beginning balance	$	5,060	507	6,465	559
Total gains or losses:
Included in net income	—		—	—	—
Included in other comprehensive income	—		—	—	—
Interest rate lock commitments:
Net activity	(1,452)		6,909	(2,857)	6,857
Transfers from Level 3	—		—	—	—
Transfers into Level 3	—		—	—	—
Ending balance	$	3,608	7,416	3,608	7,416

Schedule of fair value measurement for nonrecurring assets

The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of June 30, 2021 (in thousands):

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	91,288	91,288
Mortgage servicing rights	—		—	2,211	2,211
Real estate owned, net	—		—	1,353	1,353
Total assets	$	—	—	94,852	94,852

    The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2020 (in thousands): 

	Level 1		Level 2	Level 3	Total assets  at fair value
Loans individually assessed	$	—	—	95,303	95,303
Real estate owned, net	—		—	2,232	2,232
Total assets	$	—	—	97,535	97,535

Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 fair value measurements

The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at June 30, 2021 (in thousands): 

	Fair value		Valuation techniques	Significant unobservable inputs	Range  (weighted average)
Loans individually assessed	$	91,288	Appraisal value (1)	Estimated cost to sell	10.0%
			Discounted cash flow	Discount rate	10.92% to 15.4% (12.27%)
Mortgage servicing rights	2,211		Discounted cash	Annual service cost	$84
			flow	Prepayment rates	11.9% to 28.1% (22.3%)
				Expected life (months)	41.4 to 70.7 (57.3)
				Option adjusted spread	750 basis points
				Forward yield curve	0.09% to 1.56%
Real estate owned, net	$	1,353	Appraisal value (1)	Estimated cost to sell	10.0%

(1)Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivatives not designated as hedging instruments

The following table presents information regarding our derivative financial instruments for the periods indicated (in thousands):

	Asset derivatives			Liability derivatives
	Notional amount		Fair value	Notional amount	Fair value
At June 30, 2021
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	602,029	38,054	602,029	38,349
Foreign exchange swap agreements	6,265		94	3,088	4
Interest rate lock commitments	127,328		3,608	—	—
Forward commitments	12,166		393	—	—
Risk participation agreements	—		—	82,157	84
Total derivatives	$	747,788	42,149	687,274	38,437
At December 31, 2020
Derivatives not designated as hedging instruments:
Interest rate swap agreements	$	599,300	53,863	599,300	54,579
Interest rate lock commitments	171,357		6,465	—	—
Forward commitments	25,474		1,105	—	—
Risk participation agreements	—		—	77,532	86
Total derivatives	$	796,131	61,433	676,832	54,665

Schedule of derivative instruments gain (loss)

The following table presents income or expense recognized on derivatives for the periods indicated (in thousands):

	For the quarter ended June 30,			For the six months ended June 30,
	2021		2020	2021	2020
Hedging derivatives:
Decrease in interest expense	$	—	(90)	—	(102)
Non-hedging swap derivatives:
Increase/(decrease) in other income	(26)		(345)	498	(522)
Increase in mortgage banking income	1,510		8,247	3,570	8,248

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Changes in Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of changes in accumulated other comprehensive income by component

The following tables show the changes in accumulated other comprehensive income by component for the periods indicated (in thousands): 

	For the quarter ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2021	$	(653)	—	(50,059)	(50,712)
Other comprehensive income before reclassification adjustments (1)	4,322		—	—	4,322
Amounts reclassified from accumulated other comprehensive income (2) (3)	(136)		—	334	198
Net other comprehensive income	4,186		—	334	4,520
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

	For the quarter ended June 30, 2020
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of March 31, 2020	$	11,341	(409)	(39,839)	(28,907)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	4,790		(537)	—	4,253
Amounts reclassified from accumulated other comprehensive income (6) (7)	(35)		—	249	214
Net other comprehensive income/(loss)	4,755		(537)	249	4,467
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding gains, net of tax of $1,245.

(2)Consists of realized losses, net of tax of ($43).

(3)Consists of realized gains, net of tax of $128.

(4)Consists of unrealized holding gains, net of tax $1,902.

(5)Consists of realized losses, net of tax ($47).

(6)Consists of realized losses, net of tax of ($13).

(7)Consists of realized gains, net of tax of $99. 

	For the six months ended June 30, 2021
	Unrealized  gains/(losses)  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2020	$	16,843	—	(50,392)	(33,549)
Other comprehensive loss before reclassification adjustments (1)	(13,099)		—	—	(13,099)
Amounts reclassified from accumulated other comprehensive income (2) (3)	(211)		—	667	456
Net other comprehensive income/loss	(13,310)		—	667	(12,643)
Balance as of June 30, 2021	$	3,533	—	(49,725)	(46,192)

	For the six months ended June 30, 2020
	Unrealized  gains  on securities  available-for-sale		Change in  fair value  of interest  rate swaps	Change in  defined benefit  pension plans	Total
Balance as of December 31, 2019	$	3,147	—	(40,088)	(36,941)
Other comprehensive income/(loss) before reclassification adjustments (4) (5)	12,947		(946)	—	12,001
Amounts reclassified from accumulated other comprehensive income (6) (7)	2		—	498	500
Net other comprehensive income/(loss)	12,949		(946)	498	12,501
Balance as of June 30, 2020	$	16,096	(946)	(39,590)	(24,440)

(1)Consists of unrealized holding losses, net of tax of ($4,736).

(2)Consists of realized losses, net of tax of ($65).

(3)Consists of realized gains, net of tax of $258.

(4)Consists of unrealized holding gains, net of tax $5,179.

(5)Consists of realized holding losses, net of tax ($209) .

(6)Consists of realized gains, net of tax of $1.

(7)Consists of realized gains, net of tax of $198.

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Basis of Presentation and Informational Disclosures (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	May 25, 2021 $ / shares shares	Jun. 30, 2021 USD ($) bank_location	Jun. 30, 2020 USD ($)
Stock Related Compensation
Number of banking locations | bank_location		170
Options exercise price (in dollars per share) | $ / shares	$ 13.68
Options weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.64
Stock-based compensation expense | $		$ 1,700	$ 1,500
Unrecognized tax benefits liability | $		336
Employees
Stock Related Compensation
Options granted (in shares) | shares	621,972
Director
Stock Related Compensation
Options granted (in shares) | shares	72,000
Employee Stock Option
Stock Related Compensation
Award vesting period	5 years
Compensation expense yet to be recognized | $		11,500
Restricted Stock
Stock Related Compensation
Restricted common shares weighted average grant date fair value (in dollars per share) | $ / shares	$ 13.68
Award vesting period	5 years
Compensation expense yet to be recognized | $		$ 2,100
Restricted Stock | Employees
Stock Related Compensation
Restricted common shares granted (in shares) | shares	293,755
Restricted Stock | Director
Stock Related Compensation
Restricted common shares granted (in shares) | shares	27,000

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Marketable Securities - Available For Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized cost
Residential mortgage-backed securities	$ 1,593,813	$ 1,375,685
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	14,982	24,702
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(9,771)	(1,446)
Fair value
Securities available-for-sale	1,599,024	1,398,941
Debt issued by the U.S government and agencies
Amortized cost
Due after ten years	59,435	40,761
Gross unrealized holding gains
Due after ten years	125	211
Gross unrealized holding losses
Due after ten years	(306)	(55)
Fair value
Due after ten years	59,254	40,917
Debt issued by government sponsored enterprises
Amortized cost
Due in less than one year	25,208	24,976
Due in one year through five years		238
Due in five years through ten years	47,663	68,973
Gross unrealized holding gains
Due in less than one year	13	159
Due in one year through five years		3
Due in five years through ten years	94	238
Gross unrealized holding losses
Due in less than one year	0	0
Due in one year through five years		0
Due in five years through ten years	(1,120)	(80)
Fair value
Due in less than one year	25,221	25,135
Due in one year through five years		241
Due in five years through ten years	46,637	69,131
Municipal securities
Amortized cost
Due in less than one year	1,130	4,008
Due in one year through five years	2,234	2,803
Due in five years through ten years	20,017	16,045
Due after ten years	87,956	89,778
Gross unrealized holding gains
Due in less than one year	3	14
Due in one year through five years	60	63
Due in five years through ten years	556	429
Due after ten years	3,265	3,752
Gross unrealized holding losses
Due in less than one year	(1)	0
Due in one year through five years	0	(2)
Due in five years through ten years	(89)	(5)
Due after ten years	(102)	(72)
Fair value
Due in less than one year	1,132	4,022
Due in one year through five years	2,294	2,864
Due in five years through ten years	20,484	16,469
Due after ten years	91,119	93,458
Residential mortgage-backed securities - agency
Amortized cost
Due in less than one year	1,441
Due in one year through five years	38,662
Due in five years through ten years	253,062
Due after ten years	1,057,005
Residential mortgage-backed securities	1,350,170	1,128,103
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	10,866	19,833
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(8,153)	(1,232)
Fair value
Due in less than one year	1,444
Due in one year through five years	39,130
Due in five years through ten years	255,356
Due after ten years	1,056,953
Securities available-for-sale	1,352,883	1,146,704
Fixed rate | Pass-through
Amortized cost
Residential mortgage-backed securities	303,717	339,406
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	3,587	7,125
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(1,134)	(86)
Fair value
Securities available-for-sale	306,170	346,445
Fixed rate | Agency CMOs
Amortized cost
Residential mortgage-backed securities	988,012	723,586
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	6,582	11,758
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(6,981)	(1,093)
Fair value
Securities available-for-sale	987,613	734,251
Variable rate | Pass-through
Amortized cost
Residential mortgage-backed securities	12,968	14,778
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	387	431
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(15)	(20)
Fair value
Securities available-for-sale	13,340	15,189
Variable rate | Agency CMOs
Amortized cost
Residential mortgage-backed securities	45,473	50,333
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	310	519
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(23)	(33)
Fair value
Securities available-for-sale	$ 45,760	$ 50,819

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Marketable Securities - Held To Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized cost
Amortized cost	$ 639,424	$ 178,887
Gross unrealized holding gains
Gross unrealized holding gains	1,212	904
Gross unrealized holding losses
Gross unrealized holding losses	(8,016)	(125)
Fair value
Fair value	632,620	179,666
Debt issued by the U.S government and agencies
Amortized cost
Due after five years through ten years	107,972
Gross unrealized holding gains
Due in five years through ten years	0
Gross unrealized holding losses
Due in five years through ten years	(3,578)
Fair value
Due after five years through ten years	104,394
Debt issued by the U.S government and agencies | Pass-through
Amortized cost
Due in one year through five years	16,478
Amortized cost		67,990
Gross unrealized holding gains
Due in one year through five years	0
Gross unrealized holding gains		12
Gross unrealized holding losses
Due in one year through five years	(18)
Gross unrealized holding losses		(123)
Fair value
Due in one year through five years	16,460
Fair value		67,879
Fixed rate | Pass-through
Amortized cost
Amortized cost	202,269	1,723
Gross unrealized holding gains
Gross unrealized holding gains	591	131
Gross unrealized holding losses
Gross unrealized holding losses	(658)	0
Fair value
Fair value	202,202	1,854
Fixed rate | Agency CMOs
Amortized cost
Amortized cost	311,341	107,651
Gross unrealized holding gains
Gross unrealized holding gains	576	716
Gross unrealized holding losses
Gross unrealized holding losses	(3,762)	(2)
Fair value
Fair value	308,155	108,365
Variable rate | Pass-through
Amortized cost
Amortized cost	761	919
Gross unrealized holding gains
Gross unrealized holding gains	26	30
Gross unrealized holding losses
Gross unrealized holding losses	0	0
Fair value
Fair value	787	949
Variable rate | Agency CMOs
Amortized cost
Amortized cost	603	604
Gross unrealized holding gains
Gross unrealized holding gains	19	15
Gross unrealized holding losses
Gross unrealized holding losses	0	0
Fair value
Fair value	622	619
Residential mortgage-backed securities - agency
Amortized cost
Due in one year through five years	985
Due after five years through ten years	221,656
Amortized cost	514,974	110,897
Gross unrealized holding gains
Gross unrealized holding gains	1,212	892
Gross unrealized holding losses
Gross unrealized holding losses	(4,420)	(2)
Fair value
Due in one year through five years	1,051
Due after five years through ten years	221,054
Fair value	$ 511,766	$ 111,787

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Marketable Securities - Available-for-sale, by Contractual Maturity (Details) - Residential mortgage-backed securities - agency $ in Thousands	Jun. 30, 2021 USD ($)
Amortized cost
Due in less than one year	$ 1,441
Due in one year through five years	38,662
Due after five years through ten years	253,062
Due after ten years	1,057,005
Total marketable securities available-for-sale	1,350,170
Fair value
Due in less than one year	1,444
Due in one year through five years	39,130
Due in five years through ten years	255,356
Due after ten years	1,056,953
Total marketable securities available-for-sale	$ 1,352,883

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Marketable Securities - Held To Maturity, by Contractual Maturity (Details) - Residential mortgage-backed securities - agency $ in Thousands	Jun. 30, 2021 USD ($)
Amortized cost
Due in one year through five years	$ 985
Due after five years through ten years	221,656
Due after ten years	292,333
Total marketable securities held-to-maturity	514,974
Fair value
Due in one year through five years	1,051
Due after five years through ten years	221,054
Due after ten years	289,661
Total marketable securities held-to-maturity	$ 511,766

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Marketable Securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($) position	Dec. 31, 2020 USD ($)
Marketable securities
Less than 12 months - Fair value	$ 1,305,087	$ 372,833
Less than 12 months - Unrealized loss	(17,674)	(1,460)
12 months or more - Fair value	10,531	7,456
12 months or more - Unrealized loss	(113)	(111)
Total - Fair value	1,315,618	380,289
Total - Unrealized loss	$ (17,787)	(1,571)
Number of investment positions with unrealized losses | position	158
U.S. government and agencies
Marketable securities
Less than 12 months - Fair value	$ 194,872	67,809
Less than 12 months - Unrealized loss	(4,955)	(179)
12 months or more - Fair value	1,619	1,923
12 months or more - Unrealized loss	(67)	(80)
Total - Fair value	196,491	69,732
Total - Unrealized loss	(5,022)	(259)
Municipal securities
Marketable securities
Less than 12 months - Fair value	11,013	4,257
Less than 12 months - Unrealized loss	(191)	(79)
12 months or more - Fair value	121	0
12 months or more - Unrealized loss	(1)	0
Total - Fair value	11,134	4,257
Total - Unrealized loss	(192)	(79)
Residential mortgage-backed securities - agency | Agency CMOs
Marketable securities
Less than 12 months - Fair value	1,099,202	300,767
Less than 12 months - Unrealized loss	(12,528)	(1,202)
12 months or more - Fair value	8,791	5,533
12 months or more - Unrealized loss	(45)	(31)
Total - Fair value	1,107,993	306,300
Total - Unrealized loss	$ (12,573)	$ (1,233)

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Marketable Securities - Credit Quality of Held To Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	$ 639,424	$ 178,887
Residential mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	514,974
U.S. government and agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	124,450
AA+
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	639,424
AA+ | Residential mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	514,974
AA+ | U.S. government and agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities	$ 124,450

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Loans Receivable - Summary of Originated and Acquired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 10,309,980		$ 10,580,849
Allowance for credit losses	(117,330)	$ (123,997)	(134,427)	$ (140,586)	$ (92,897)	$ (57,941)
Total loans receivable, net	10,192,650		10,446,422
Loans held-for-sale	29,055		58,786
Unearned income, unamortized premiums and discounts and deferred fees and costs	48,700		40,900
Personal banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	6,076,010		6,043,850
Allowance for credit losses	(30,175)	(28,553)	(30,954)	(37,412)	(37,619)	(18,356)
Personal banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,954,551		3,068,121
Allowance for credit losses	(7,247)	(5,861)	(7,266)	(11,708)	(10,673)	(2,574)
Loans held-for-sale			58,800
Personal banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,376,228		1,467,736
Allowance for credit losses	(7,239)	(5,241)	(5,992)	(9,363)	(9,786)	(3,189)
Personal banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,391,520		1,152,673
Allowance for credit losses	(12,888)	(14,888)	(14,825)	(13,835)	(11,994)	(7,292)
Personal banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	353,711		355,320
Allowance for credit losses	(2,801)	(2,563)	(2,871)	(2,506)	(5,166)	(5,301)
Commercial banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	4,233,970		4,536,999
Allowance for credit losses	(87,155)	(95,444)	(103,473)	(103,174)	(55,278)	(39,585)
Commercial banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,783,051		2,847,981
Allowance for credit losses	(64,580)	(70,206)	(79,381)	(72,833)	(29,380)	(15,843)
Commercial banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	432,138		497,908
Allowance for credit losses	(4,729)	(6,753)	(10,518)	(14,827)	(8,374)	(5,745)
Commercial banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,018,781		1,191,110
Allowance for credit losses	(17,846)	$ (18,485)	(13,574)	$ (15,514)	$ (17,524)	$ (17,997)
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	8,878,568		8,799,008
Allowance for credit losses	(90,375)		(102,874)
Total loans receivable, net	8,788,193		8,696,134
Originated | Personal banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	5,394,274		5,212,402
Originated | Personal banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,701,046		2,753,593
Originated | Personal banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,127,884		1,175,703
Originated | Personal banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,266,181		995,040
Originated | Personal banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	299,163		288,066
Originated | Commercial banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	3,484,294		3,586,606
Originated | Commercial banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,258,220		2,223,108
Originated | Commercial banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	327,039		344,016
Originated | Commercial banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	899,035		1,019,482
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,431,412		1,781,841
Allowance for credit losses	(26,955)		(31,553)
Total loans receivable, net	1,404,457		1,750,288
Acquired | Personal banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	681,736		831,448
Acquired | Personal banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	253,505		314,528
Acquired | Personal banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	248,344		292,033
Acquired | Personal banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	125,339		157,633
Acquired | Personal banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	54,548		67,254
Acquired | Commercial banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	749,676		950,393
Acquired | Commercial banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	524,831		624,873
Acquired | Commercial banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	105,099		153,892
Acquired | Commercial banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 119,746		$ 171,628

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Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Changes in allowance for losses on allocated loans receivable
Beginning balance	$ 123,997	$ 92,897	$ 134,427	$ 57,941
Current period provision	0	51,750	(5,620)	79,387
Charge-offs	(8,675)	(14,441)	(17,041)	(19,707)
Recoveries	2,008	1,535	5,564	3,328
Initial ACL on loans purchased with credit deterioration		8,845		8,845
Ending balance	117,330	140,586	117,330	140,586
Loans classified as held-for-investment sold	0	0	0	50,000
Gain on sale of loans	0	0	0	1,302
Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Initial ACL on loans purchased with credit deterioration			517
Ending balance		10,792		10,792
Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	4,619	4,704	6,363	974
Current period provision	(1,230)	5,479	(2,974)	6,959
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	3,389	10,183	3,389	10,183
Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		2,250		2,250
Personal banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	28,553	37,619	30,954	18,356
Current period provision	3,670	588	3,850	11,254
Charge-offs	(3,550)	(3,402)	(7,236)	(7,522)
Recoveries	1,502	904	2,607	1,976
Initial ACL on loans purchased with credit deterioration		1,703		1,703
Ending balance	30,175	37,412	30,175	37,412
Personal banking | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		11,645		11,645
Personal banking | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	36	34	37	725
Current period provision	8	4	7	8
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	44	38	44	38
Personal banking | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(695)		(695)
Personal banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,861	10,673	7,266	2,574
Current period provision	1,922	(30)	1,330	864
Charge-offs	(770)	(38)	(1,625)	(381)
Recoveries	234	8	276	115
Initial ACL on loans purchased with credit deterioration		1,095		1,095
Ending balance	7,247	11,708	7,247	11,708
Personal banking | Residential mortgage loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		7,441		7,441
Personal banking | Residential mortgage loans | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	2		2
Current period provision	0		0
Charge-offs	0		0
Recoveries	0		0
Ending balance	2		2
Personal banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,241	9,786	5,992	3,189
Current period provision	2,253	(542)	1,601	353
Charge-offs	(379)	(173)	(607)	(462)
Recoveries	124	76	253	281
Initial ACL on loans purchased with credit deterioration		216		216
Ending balance	7,239	9,363	7,239	9,363
Personal banking | Home equity loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		5,786		5,786
Personal banking | Home equity loans | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	34	34	35	323
Current period provision	8	4	7	8
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	42	38	42	38
Personal banking | Home equity loans | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(293)		(293)
Personal banking | Vehicle loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	14,888	11,994	14,825	7,292
Current period provision	(1,196)	2,949	(423)	8,308
Charge-offs	(1,598)	(1,763)	(2,905)	(3,606)
Recoveries	794	420	1,391	764
Initial ACL on loans purchased with credit deterioration		235		235
Ending balance	12,888	13,835	12,888	13,835
Personal banking | Vehicle loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		842		842
Personal banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,563	5,166	2,871	5,301
Current period provision	691	(1,789)	1,342	1,729
Charge-offs	(803)	(1,428)	(2,099)	(3,073)
Recoveries	350	400	687	816
Initial ACL on loans purchased with credit deterioration		157		157
Ending balance	2,801	2,506	2,801	2,506
Personal banking | Consumer loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(2,424)		(2,424)
Personal banking | Consumer loans | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance				402
Current period provision				0
Charge-offs				0
Recoveries				0
Initial ACL on loans purchased with credit deterioration				0
Ending balance		0		0
Personal banking | Consumer loans | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(402)		(402)
Commercial banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	95,444	55,278	103,473	39,585
Current period provision	(3,670)	51,162	(9,470)	68,133
Charge-offs	(5,125)	(11,039)	(9,805)	(12,185)
Recoveries	506	631	2,957	1,352
Initial ACL on loans purchased with credit deterioration		7,142		7,142
Ending balance	87,155	103,174	87,155	103,174
Commercial banking | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(853)		(853)
Commercial banking | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	4,583	4,670	6,326	249
Current period provision	(1,238)	5,475	(2,981)	6,951
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	3,345	10,145	3,345	10,145
Commercial banking | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		2,945		2,945
Commercial banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	70,206	29,380	79,381	15,843
Current period provision	(2,925)	37,969	(7,756)	49,238
Charge-offs	(3,074)	(690)	(7,700)	(1,000)
Recoveries	373	454	655	744
Initial ACL on loans purchased with credit deterioration		5,720		5,720
Ending balance	64,580	72,833	64,580	72,833
Commercial banking | Commercial real estate loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		2,288		2,288
Commercial banking | Commercial real estate loans | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,115	3,294	3,449	77
Current period provision	(183)	1,841	(1,517)	3,124
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	1,932	5,135	1,932	5,135
Commercial banking | Commercial real estate loans | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		1,934		1,934
Commercial banking | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	6,753	8,374	10,518	5,745
Current period provision	(1,138)	5,482	(4,904)	6,847
Charge-offs	(890)	0	(890)	(21)
Recoveries	4	8	5	15
Initial ACL on loans purchased with credit deterioration		963		963
Ending balance	4,729	14,827	4,729	14,827
Commercial banking | Commercial real estate loans - owner occupied | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		1,278		1,278
Commercial banking | Commercial real estate loans - owner occupied | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	388	95	326	3
Current period provision	(207)	531	(145)	535
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	181	626	181	626
Commercial banking | Commercial real estate loans - owner occupied | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		88		88
Commercial banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	18,485	17,524	13,574	17,997
Current period provision	393	7,711	3,190	12,048
Charge-offs	(1,161)	(10,349)	(1,215)	(11,164)
Recoveries	129	169	2,297	593
Initial ACL on loans purchased with credit deterioration		459		459
Ending balance	17,846	15,514	17,846	15,514
Commercial banking | Commercial loans | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		(4,419)		(4,419)
Commercial banking | Commercial loans | Off-Balance sheet exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,080	1,281	2,551	169
Current period provision	(848)	3,103	(1,319)	3,292
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Initial ACL on loans purchased with credit deterioration		0		0
Ending balance	$ 1,232	4,384	$ 1,232	4,384
Commercial banking | Commercial loans | Off-Balance sheet exposure | Cumulative effect of ASU 2016-13
Changes in allowance for losses on allocated loans receivable
Ending balance		$ 923		$ 923

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Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 10,309,980		$ 10,580,849
Allowance for credit losses	117,330	$ 123,997	134,427	$ 140,586	$ 92,897	$ 57,941
Nonaccrual loans	206,761		102,832
Loans 90 days past due and accruing	302		585
TDRs	27,431		32,135
Allowance related to TDRs	2,963		2,016
Additional commitments to customers with loans classified as TDRs	1,265		859
Non-accrual TDRs	8,951		10,700	17,562
Personal banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	6,076,010		6,043,850
Allowance for credit losses	30,175	28,553	30,954	37,412	37,619	18,356
Nonaccrual loans	20,492		31,611
Loans 90 days past due and accruing	302		585
TDRs	9,315		10,490
Allowance related to TDRs	1,596		941
Additional commitments to customers with loans classified as TDRs	0		26
Personal banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,954,551		3,068,121
Allowance for credit losses	7,247	5,861	7,266	11,708	10,673	2,574
Nonaccrual loans	10,471		15,924
Loans 90 days past due and accruing	0		0
TDRs	7,347		8,431
Allowance related to TDRs	944		560
Additional commitments to customers with loans classified as TDRs	0		0
Personal banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,376,228		1,467,736
Allowance for credit losses	7,239	5,241	5,992	9,363	9,786	3,189
Nonaccrual loans	6,965		9,123
Loans 90 days past due and accruing	0		0
TDRs	1,968		2,058
Allowance related to TDRs	652		381
Additional commitments to customers with loans classified as TDRs	0		26
Personal banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,391,520		1,152,673
Allowance for credit losses	12,888	14,888	14,825	13,835	11,994	7,292
Nonaccrual loans	2,579		5,533
Loans 90 days past due and accruing	0		1
TDRs	0		0
Allowance related to TDRs	0		0
Additional commitments to customers with loans classified as TDRs	0		0
Personal banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	353,711		355,320
Allowance for credit losses	2,801	2,563	2,871	2,506	5,166	5,301
Nonaccrual loans	477
Loans 90 days past due and accruing	302
TDRs	0
Allowance related to TDRs	0
Additional commitments to customers with loans classified as TDRs	0
Personal banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross			355,320
Allowance for credit losses			2,871
Nonaccrual loans			1,031
Loans 90 days past due and accruing			584
TDRs			1
Allowance related to TDRs			0
Additional commitments to customers with loans classified as TDRs			0
Commercial banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	4,233,970		4,536,999
Allowance for credit losses	87,155	95,444	103,473	103,174	55,278	39,585
Nonaccrual loans	186,269		71,221
Loans 90 days past due and accruing	0		0
TDRs	18,116		21,645
Allowance related to TDRs	1,367		1,075
Additional commitments to customers with loans classified as TDRs	1,265		833
Commercial banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,783,051		2,847,981
Allowance for credit losses	64,580	70,206	79,381	72,833	29,380	15,843
Nonaccrual loans	162,301		44,092
Loans 90 days past due and accruing	0		0
TDRs	14,588		18,430
Allowance related to TDRs	890		787
Additional commitments to customers with loans classified as TDRs	500		471
Commercial banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	432,138		497,908
Allowance for credit losses	4,729	6,753	10,518	14,827	8,374	5,745
Nonaccrual loans	1,870		3,642
Loans 90 days past due and accruing	0		0
TDRs	452		761
Allowance related to TDRs	162		123
Additional commitments to customers with loans classified as TDRs	0		0
Commercial banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,018,781		1,191,110
Allowance for credit losses	17,846	$ 18,485	13,574	$ 15,514	$ 17,524	$ 17,997
Nonaccrual loans	22,098		23,487
Loans 90 days past due and accruing	0		0
TDRs	3,076		2,454
Allowance related to TDRs	315		165
Additional commitments to customers with loans classified as TDRs	$ 765		$ 362

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Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Jan. 01, 2021	Jan. 01, 2020
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	$ 140,962,000	$ 140,962,000	$ 79,992,000	$ 102,832,000	$ 68,870,000
Nonaccrual loans with no allowance	65,799,000	65,799,000	22,840,000
Loans 90 days past due and accruing	302,000	302,000	585,000
Interest income, accrual method	247,000	526,000	842,000
Amortized cost basis of collateral-dependent loans	173,718,000	173,718,000	99,039,000
Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	153,962,000	153,962,000	84,073,000
Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	11,921,000	11,921,000	2,194,000
Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	7,835,000	7,835,000	12,772,000
Personal banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	20,297,000	20,297,000	31,202,000	31,611,000	25,447,000
Nonaccrual loans with no allowance	195,000	195,000	409,000
Loans 90 days past due and accruing	302,000	302,000	585,000
Amortized cost basis of collateral-dependent loans	685,000	685,000	1,368,000
Personal banking | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	685,000	685,000	1,368,000
Personal banking | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	10,471,000	10,471,000	15,923,000	15,924,000	14,476,000
Nonaccrual loans with no allowance	0	0	0
Loans 90 days past due and accruing	0	0	0
Amortized cost basis of collateral-dependent loans	586,000	586,000	1,269,000
Personal banking | Residential mortgage loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	586,000	586,000	1,269,000
Personal banking | Residential mortgage loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Residential mortgage loans | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	6,773,000	6,773,000	8,872,000	9,123,000	6,745,000
Nonaccrual loans with no allowance	192,000	192,000	252,000
Loans 90 days past due and accruing	0	0	0
Amortized cost basis of collateral-dependent loans	99,000	99,000	99,000
Personal banking | Home equity loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	99,000	99,000	99,000
Personal banking | Home equity loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Home equity loans | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0	0	0
Personal banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	2,576,000	2,576,000	5,377,000	5,533,000	3,147,000
Nonaccrual loans with no allowance	3,000	3,000	156,000
Loans 90 days past due and accruing	0	0	1,000
Personal banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	477,000	477,000	1,030,000	1,031,000	1,079,000
Nonaccrual loans with no allowance	0	0	1,000
Loans 90 days past due and accruing	302,000	302,000	584,000
Commercial banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	120,665,000	120,665,000	48,790,000	71,221,000	43,423,000
Nonaccrual loans with no allowance	65,604,000	65,604,000	22,431,000
Loans 90 days past due and accruing	0	0	0
Amortized cost basis of collateral-dependent loans	173,033,000	173,033,000	97,671,000
Commercial banking | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	153,277,000	153,277,000	82,705,000
Commercial banking | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	11,921,000	11,921,000	2,194,000
Commercial banking | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	7,835,000	7,835,000	12,772,000
Commercial banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	101,472,000	101,472,000	27,079,000	44,092,000	18,832,000
Nonaccrual loans with no allowance	60,829,000	60,829,000	17,013,000
Loans 90 days past due and accruing	0	0	0
Amortized cost basis of collateral-dependent loans	155,710,000	155,710,000	83,092,000
Commercial banking | Commercial real estate loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	150,426,000	150,426,000	79,392,000
Commercial banking | Commercial real estate loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,852,000	1,852,000	1,997,000
Commercial banking | Commercial real estate loans | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,432,000	3,432,000	1,703,000
Commercial banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	1,870,000	1,870,000	3,642,000	3,642,000	16,032,000
Nonaccrual loans with no allowance	0	0	0
Loans 90 days past due and accruing	0	0	0
Commercial banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	17,323,000	17,323,000	18,069,000	$ 23,487,000	$ 8,559,000
Nonaccrual loans with no allowance	4,775,000	4,775,000	5,418,000
Loans 90 days past due and accruing	0	0	0
Amortized cost basis of collateral-dependent loans	17,323,000	17,323,000	14,579,000
Commercial banking | Commercial loans | Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	2,851,000	2,851,000	3,313,000
Commercial banking | Commercial loans | Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	10,069,000	10,069,000	197,000
Commercial banking | Commercial loans | Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	$ 4,403,000	$ 4,403,000	$ 11,069,000

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Loans Receivable - Roll Forward of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Dec. 31, 2020 USD ($)
Number of contracts
Beginning balance | contract	164	171	170	176
New TDRs | contract	2	1	2	3
Re-modified TDRs | contract	1	2	5	3
Net paydowns | contract	0	0	0	0
Ending balance | contract	158	167	158	167
Amount
Beginning TDR balance	$ 27,510	$ 33,352	$ 32,135	$ 31,999
New TDRs	2,295	67	2,295	84
Re-modified TDRs	344	3,436	1,241	5,487
Net paydowns	(1,610)	(1,194)	(4,073)	(1,509)
Ending TDR balance	27,431	35,450	27,431	35,450
Accruing TDRs	18,480	17,888	18,480	17,888
Non-accrual TDRs	$ 8,951	$ 17,562	$ 8,951	$ 17,562	$ 10,700
Residential mortgage loans
Number of contracts
Charge-offs: | contract	0	0	0	0
Paid-off loans: | contract	4	0	4	2
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ 0
Paid-off loans:	$ (726)	$ 0	$ (726)	$ (330)
Home equity loans
Number of contracts
Charge-offs: | contract	0	0	0	1
Paid-off loans: | contract	1	2	1	2
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ (10)
Paid-off loans:	$ (11)	$ (3)	$ (11)	$ (3)
Vehicle loans
Number of contracts
Charge-offs: | contract	0	0	0	0
Paid-off loans: | contract	0	0	0	0
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ 0
Paid-off loans:	$ 0	$ 0	$ 0	$ 0
Commercial real estate loans
Number of contracts
Charge-offs: | contract	0	0	0	0
Paid-off loans: | contract	2	0	5	1
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ 0
Paid-off loans:	$ (302)	$ 0	$ (2,686)	$ (26)
Commercial real estate loans - owner occupied
Number of contracts
Charge-offs: | contract	0	0	0	0
Paid-off loans: | contract	0	1	1	1
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ 0
Paid-off loans:	$ 0	$ (25)	$ (47)	$ (25)
Commercial loans
Number of contracts
Charge-offs: | contract	0	0	0	0
Paid-off loans: | contract	1	2	3	5
Amount
Charge-offs:	$ 0	$ 0	$ 0	$ 0
Paid-off loans:	$ (69)	$ (183)	$ (697)	$ (217)

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Loans Receivable - Troubled Debt Restructuring (Including Re-Modified TDRs) by Portfolio Segment and by Class of Financing Receivable (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	3	3	7	6
Recorded investment at the time of modification	$ 3,121	$ 3,021	$ 4,057	$ 5,117
Current recorded investment	2,638	3,503	3,536	5,571
Current allowance	$ 34	$ 70	$ 158	$ 204
Personal banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	1	2	2
Recorded investment at the time of modification	$ 0	$ 67	$ 124	$ 86
Current recorded investment	0	67	116	84
Current allowance	$ 0	$ 12	$ 10	$ 15
Personal banking | Residential mortgage loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	0	1	0
Recorded investment at the time of modification	$ 0	$ 0	$ 121	$ 0
Current recorded investment	0	0	116	0
Current allowance	$ 0	$ 0	$ 10	$ 0
Personal banking | Home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	1	1	2
Recorded investment at the time of modification	$ 0	$ 67	$ 3	$ 86
Current recorded investment	0	67	0	84
Current allowance	$ 0	$ 12	$ 0	$ 15
Personal banking | Vehicle loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	0	0	0
Recorded investment at the time of modification		$ 0		$ 0
Current recorded investment	$ 0	0	$ 0	0
Current allowance		$ 0		$ 0
Personal banking | Consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	0	0	0
Recorded investment at the time of modification		$ 0		$ 0
Current recorded investment	$ 0	0	$ 0	0
Current allowance		$ 0		$ 0
Commercial banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	3	2	5	4
Recorded investment at the time of modification	$ 3,121	$ 2,954	$ 3,933	$ 5,031
Current recorded investment	2,638	3,436	3,420	5,487
Current allowance	$ 34	$ 58	$ 148	$ 189
Commercial banking | Commercial real estate loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	1	1	3	1
Recorded investment at the time of modification	$ 725	$ 454	$ 1,537	$ 454
Current recorded investment	343	454	1,125	454
Current allowance	$ 34	$ 58	$ 148	$ 58
Commercial banking | Commercial real estate loans - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0	0	0	2
Recorded investment at the time of modification		$ 0		$ 2,077
Current recorded investment	$ 0	0	$ 0	2,051
Current allowance		$ 0		$ 131
Commercial banking | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	2	1	2	1
Recorded investment at the time of modification	$ 2,396	$ 2,500	$ 2,396	$ 2,500
Current recorded investment	2,295	2,982	2,295	2,982
Current allowance	$ 0	$ 0	$ 0	$ 0

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Loans Receivable - Troubled Debt Restructurings by Type of Modification (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract
Troubled debt restructurings
Number of contracts | contract	3	3	7	6
Type of modification	$ 2,638	$ 3,503	$ 3,536	$ 5,571
Number of TDR contracts with subsequent default | contract				0
Rate
Troubled debt restructurings
Type of modification	0	67	116	$ 67
Payment
Troubled debt restructurings
Type of modification	0	454	0	454
Maturity date
Troubled debt restructurings
Type of modification	2,638	0	3,347	2,068
Other
Troubled debt restructurings
Type of modification	$ 0	$ 2,982	$ 73	$ 2,982
Personal banking
Troubled debt restructurings
Number of contracts | contract	0	1	2	2
Type of modification	$ 0	$ 67	$ 116	$ 84
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Personal banking | Rate
Troubled debt restructurings
Type of modification	0	67	116	67
Personal banking | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	17
Personal banking | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Personal banking | Residential mortgage loans
Troubled debt restructurings
Number of contracts | contract	0	0	1	0
Type of modification	$ 0	$ 0	$ 116	$ 0
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Personal banking | Residential mortgage loans | Rate
Troubled debt restructurings
Type of modification	0	0	116	0
Personal banking | Residential mortgage loans | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Residential mortgage loans | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Residential mortgage loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Personal banking | Home equity loans
Troubled debt restructurings
Number of contracts | contract	0	1	1	2
Type of modification	$ 0	$ 67	$ 0	$ 84
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Personal banking | Home equity loans | Rate
Troubled debt restructurings
Type of modification	0	67	0	67
Personal banking | Home equity loans | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Home equity loans | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	17
Personal banking | Home equity loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Personal banking | Vehicle loans
Troubled debt restructurings
Number of contracts | contract	0	0	0	0
Type of modification	$ 0	$ 0	$ 0	$ 0
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Personal banking | Vehicle loans | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Vehicle loans | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Vehicle loans | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Vehicle loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Personal banking | Consumer loans
Troubled debt restructurings
Number of contracts | contract	0	0	0	0
Type of modification	$ 0	$ 0	$ 0	$ 0
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Personal banking | Consumer loans | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Consumer loans | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Consumer loans | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	0
Personal banking | Consumer loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Commercial banking
Troubled debt restructurings
Number of contracts | contract	3	2	5	4
Type of modification	$ 2,638	$ 3,436	$ 3,420	$ 5,487
Number of TDR contracts with subsequent default | contract			1
Recorded investment at the time of modification			$ 454
Current recorded investment			454
Current allowance			50
Commercial banking | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Payment
Troubled debt restructurings
Type of modification	0	454	0	454
Commercial banking | Maturity date
Troubled debt restructurings
Type of modification	2,638	0	3,347	2,051
Commercial banking | Other
Troubled debt restructurings
Type of modification	$ 0	$ 2,982	$ 73	$ 2,982
Commercial banking | Commercial real estate loans
Troubled debt restructurings
Number of contracts | contract	1	1	3	1
Type of modification	$ 343	$ 454	$ 1,125	$ 454
Number of TDR contracts with subsequent default | contract			1
Recorded investment at the time of modification			$ 454
Current recorded investment			454
Current allowance			50
Commercial banking | Commercial real estate loans | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Commercial real estate loans | Payment
Troubled debt restructurings
Type of modification	0	454	0	454
Commercial banking | Commercial real estate loans | Maturity date
Troubled debt restructurings
Type of modification	343	0	1,052	0
Commercial banking | Commercial real estate loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 73	$ 0
Commercial banking | Commercial real estate loans - owner occupied
Troubled debt restructurings
Number of contracts | contract	0	0	0	2
Type of modification	$ 0	$ 0	$ 0	$ 2,051
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Commercial banking | Commercial real estate loans - owner occupied | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Commercial real estate loans - owner occupied | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Commercial real estate loans - owner occupied | Maturity date
Troubled debt restructurings
Type of modification	0	0	0	2,051
Commercial banking | Commercial real estate loans - owner occupied | Other
Troubled debt restructurings
Type of modification	$ 0	$ 0	$ 0	$ 0
Commercial banking | Commercial loans
Troubled debt restructurings
Number of contracts | contract	2	1	2	1
Type of modification	$ 2,295	$ 2,982	$ 2,295	$ 2,982
Number of TDR contracts with subsequent default | contract			0
Recorded investment at the time of modification			$ 0
Current recorded investment			0
Current allowance			0
Commercial banking | Commercial loans | Rate
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Commercial loans | Payment
Troubled debt restructurings
Type of modification	0	0	0	0
Commercial banking | Commercial loans | Maturity date
Troubled debt restructurings
Type of modification	2,295	0	2,295	0
Commercial banking | Commercial loans | Other
Troubled debt restructurings
Type of modification	$ 0	$ 2,982	$ 0	$ 2,982

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Loans Receivable - Loan Delinquencies (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loan payment delinquencies
Total loans receivable	$ 10,309,980	$ 10,580,849
90 days or greater delinquent and accruing	302	585
Total delinquency
Loan payment delinquencies
Total loans receivable	68,896	135,022
30-59 days delinquent
Loan payment delinquencies
Total loans receivable	13,397	61,462
60-89 days delinquent
Loan payment delinquencies
Total loans receivable	8,903	11,960
90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	46,596	61,600
Current
Loan payment delinquencies
Total loans receivable	10,241,084	10,445,827
Personal banking
Loan payment delinquencies
Total loans receivable	6,076,010	6,043,850
90 days or greater delinquent and accruing	302	585
Personal banking | Total delinquency
Loan payment delinquencies
Total loans receivable	36,301	82,603
Personal banking | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	9,854	44,134
Personal banking | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	7,541	9,481
Personal banking | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	18,906	28,988
Personal banking | Current
Loan payment delinquencies
Total loans receivable	6,039,709	5,961,247
Personal banking | Residential mortgage loans
Loan payment delinquencies
Total loans receivable	2,954,551	3,068,121
90 days or greater delinquent and accruing	0	0
Personal banking | Residential mortgage loans | Total delinquency
Loan payment delinquencies
Total loans receivable	14,664	48,369
Personal banking | Residential mortgage loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	606	28,797
Personal banking | Residential mortgage loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	4,051	5,083
Personal banking | Residential mortgage loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	10,007	14,489
Personal banking | Residential mortgage loans | Current
Loan payment delinquencies
Total loans receivable	2,939,887	3,019,752
Personal banking | Home equity loans
Loan payment delinquencies
Total loans receivable	1,376,228	1,467,736
90 days or greater delinquent and accruing	0	0
Personal banking | Home equity loans | Total delinquency
Loan payment delinquencies
Total loans receivable	11,435	14,860
Personal banking | Home equity loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	3,677	4,763
Personal banking | Home equity loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,502	1,656
Personal banking | Home equity loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	6,256	8,441
Personal banking | Home equity loans | Current
Loan payment delinquencies
Total loans receivable	1,364,793	1,452,876
Personal banking | Vehicle loans
Loan payment delinquencies
Total loans receivable	1,391,520	1,152,674
90 days or greater delinquent and accruing	0	1
Personal banking | Vehicle loans | Total delinquency
Loan payment delinquencies
Total loans receivable	7,784	14,082
Personal banking | Vehicle loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	4,475	7,707
Personal banking | Vehicle loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,392	1,776
Personal banking | Vehicle loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	1,917	4,599
Personal banking | Vehicle loans | Current
Loan payment delinquencies
Total loans receivable	1,383,736	1,138,592
Personal banking | Consumer loans
Loan payment delinquencies
Total loans receivable	353,711	355,319
90 days or greater delinquent and accruing	302	584
Personal banking | Consumer loans | Total delinquency
Loan payment delinquencies
Total loans receivable	2,418	5,292
Personal banking | Consumer loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	1,096	2,867
Personal banking | Consumer loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	596	966
Personal banking | Consumer loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	726	1,459
Personal banking | Consumer loans | Current
Loan payment delinquencies
Total loans receivable	351,293	350,027
Commercial banking
Loan payment delinquencies
Total loans receivable	4,233,970	4,536,999
90 days or greater delinquent and accruing	0	0
Commercial banking | Total delinquency
Loan payment delinquencies
Total loans receivable	32,595	52,419
Commercial banking | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	3,543	17,328
Commercial banking | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,362	2,479
Commercial banking | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	27,690	32,612
Commercial banking | Current
Loan payment delinquencies
Total loans receivable	4,201,375	4,484,580
Commercial banking | Commercial real estate loans
Loan payment delinquencies
Total loans receivable	2,783,051	2,847,980
90 days or greater delinquent and accruing	0	0
Commercial banking | Commercial real estate loans | Total delinquency
Loan payment delinquencies
Total loans receivable	26,894	31,614
Commercial banking | Commercial real estate loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	2,857	6,692
Commercial banking | Commercial real estate loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	1,335	1,615
Commercial banking | Commercial real estate loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	22,702	23,307
Commercial banking | Commercial real estate loans | Current
Loan payment delinquencies
Total loans receivable	2,756,157	2,816,366
Commercial banking | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total loans receivable	432,138	497,909
90 days or greater delinquent and accruing	0	0
Commercial banking | Commercial real estate loans - owner occupied | Total delinquency
Loan payment delinquencies
Total loans receivable	862	6,211
Commercial banking | Commercial real estate loans - owner occupied | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	0	4,231
Commercial banking | Commercial real estate loans - owner occupied | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	0	0
Commercial banking | Commercial real estate loans - owner occupied | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	862	1,980
Commercial banking | Commercial real estate loans - owner occupied | Current
Loan payment delinquencies
Total loans receivable	431,276	491,698
Commercial banking | Commercial loans
Loan payment delinquencies
Total loans receivable	1,018,781	1,191,110
90 days or greater delinquent and accruing	0	0
Commercial banking | Commercial loans | Total delinquency
Loan payment delinquencies
Total loans receivable	4,839	14,594
Commercial banking | Commercial loans | 30-59 days delinquent
Loan payment delinquencies
Total loans receivable	686	6,405
Commercial banking | Commercial loans | 60-89 days delinquent
Loan payment delinquencies
Total loans receivable	27	864
Commercial banking | Commercial loans | 90 days or greater delinquent
Loan payment delinquencies
Total loans receivable	4,126	7,325
Commercial banking | Commercial loans | Current
Loan payment delinquencies
Total loans receivable	$ 1,013,942	$ 1,176,516

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Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Credit quality indicators
Year one	$ 1,362,434	$ 2,430,289
Year two	2,055,066	1,729,845
Year three	1,500,922	1,128,885
Year four	945,441	919,058
Year five	780,472	689,542
Prior	2,772,965	2,616,425
Revolving loans	787,765	916,515
Revolving loans converted to term loans	104,915	150,290
Total loans receivable, gross	10,309,980	10,580,849
Revolving loans converted to term loans during the period	17,800	23,100
Special mention and substandard | Minimum
Credit quality indicators
Total loans receivable, gross	1,000
Personal banking
Credit quality indicators
Year one	940,523	1,493,070
Year two	1,358,842	1,050,211
Year three	846,992	581,626
Year four	455,872	426,061
Year five	342,219	338,820
Prior	1,581,292	1,573,084
Revolving loans	505,179	536,613
Revolving loans converted to term loans	45,091	44,365
Total loans receivable, gross	6,076,010	6,043,850
Personal banking | Residential mortgage loans
Credit quality indicators
Year one	300,509	641,963
Year two	642,104	418,125
Year three	348,382	230,770
Year four	187,091	249,100
Year five	205,710	216,984
Prior	1,270,755	1,311,179
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	2,954,551	3,068,121
Personal banking | Residential mortgage loans | Pass
Credit quality indicators
Year one	300,509	641,963
Year two	641,609	418,057
Year three	348,382	229,477
Year four	185,748	247,426
Year five	204,651	215,893
Prior	1,256,519	1,289,728
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	2,937,418	3,042,544
Personal banking | Residential mortgage loans | Substandard
Credit quality indicators
Year one	0	0
Year two	495	68
Year three	0	1,293
Year four	1,343	1,674
Year five	1,059	1,091
Prior	14,236	21,451
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	17,133	25,577
Personal banking | Home equity loans
Credit quality indicators
Year one	76,844	273,076
Year two	243,015	193,649
Year three	163,116	95,075
Year four	78,155	87,998
Year five	73,244	82,088
Prior	255,791	224,219
Revolving loans	442,790	468,962
Revolving loans converted to term loans	43,273	42,669
Total loans receivable, gross	1,376,228	1,467,736
Personal banking | Home equity loans | Pass
Credit quality indicators
Year one	76,844	273,076
Year two	242,949	193,439
Year three	162,871	94,757
Year four	77,955	87,717
Year five	72,820	81,212
Prior	251,135	219,061
Revolving loans	440,990	465,453
Revolving loans converted to term loans	42,201	40,759
Total loans receivable, gross	1,367,765	1,455,474
Personal banking | Home equity loans | Substandard
Credit quality indicators
Year one	0	0
Year two	66	210
Year three	245	318
Year four	200	281
Year five	424	876
Prior	4,656	5,158
Revolving loans	1,800	3,509
Revolving loans converted to term loans	1,072	1,910
Total loans receivable, gross	8,463	12,262
Personal banking | Vehicle loans
Credit quality indicators
Year one	494,662	449,089
Year two	370,016	354,619
Year three	272,991	220,459
Year four	163,920	71,332
Year five	50,350	31,864
Prior	39,581	25,310
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	1,391,520	1,152,673
Personal banking | Vehicle loans | Pass
Credit quality indicators
Year one	494,650	448,746
Year two	369,808	352,661
Year three	272,201	218,372
Year four	163,243	70,122
Year five	49,891	31,197
Prior	39,147	24,791
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	1,388,940	1,145,889
Personal banking | Vehicle loans | Substandard
Credit quality indicators
Year one	12	343
Year two	208	1,958
Year three	790	2,087
Year four	677	1,210
Year five	459	667
Prior	434	519
Revolving loans	0	0
Revolving loans converted to term loans	0	0
Total loans receivable, gross	2,580	6,784
Personal banking | Consumer loans
Credit quality indicators
Year one	68,508	128,942
Year two	103,707	83,818
Year three	62,503	35,322
Year four	26,706	17,631
Year five	12,915	7,884
Prior	15,165	12,376
Revolving loans	62,389	67,651
Revolving loans converted to term loans	1,818	1,696
Total loans receivable, gross	353,711	355,320
Personal banking | Consumer loans | Pass
Credit quality indicators
Year one	68,379	128,809
Year two	103,618	83,419
Year three	62,378	35,183
Year four	26,667	17,439
Year five	12,898	7,848
Prior	15,131	11,757
Revolving loans	62,071	66,965
Revolving loans converted to term loans	1,790	1,695
Total loans receivable, gross	352,932	353,115
Personal banking | Consumer loans | Substandard
Credit quality indicators
Year one	129	133
Year two	89	399
Year three	125	139
Year four	39	192
Year five	17	36
Prior	34	619
Revolving loans	318	686
Revolving loans converted to term loans	28	1
Total loans receivable, gross	779	2,205
Commercial banking
Credit quality indicators
Year one	421,911	937,219
Year two	696,224	679,634
Year three	653,930	547,259
Year four	489,569	492,997
Year five	438,253	350,722
Prior	1,191,673	1,043,341
Revolving loans	282,586	379,902
Revolving loans converted to term loans	59,824	105,925
Total loans receivable, gross	4,233,970	4,536,999
Commercial banking | Commercial real estate loans
Credit quality indicators
Year one	132,728	425,400
Year two	490,048	480,503
Year three	494,015	393,919
Year four	361,022	346,368
Year five	316,440	234,648
Prior	933,629	865,423
Revolving loans	31,048	39,817
Revolving loans converted to term loans	24,121	61,903
Total loans receivable, gross	2,783,051	2,847,981
Commercial banking | Commercial real estate loans | Pass
Credit quality indicators
Year one	132,129	417,390
Year two	455,283	473,115
Year three	445,635	316,045
Year four	293,714	264,702
Year five	249,646	195,168
Prior	778,071	709,459
Revolving loans	29,786	36,980
Revolving loans converted to term loans	16,779	29,755
Total loans receivable, gross	2,401,043	2,442,614
Commercial banking | Commercial real estate loans | Substandard
Credit quality indicators
Year one	0	7,426
Year two	33,432	4,007
Year three	21,064	57,694
Year four	64,704	56,991
Year five	59,893	24,056
Prior	134,247	140,147
Revolving loans	593	2,240
Revolving loans converted to term loans	7,342	29,100
Total loans receivable, gross	321,275	321,661
Commercial banking | Commercial real estate loans | Special Mention
Credit quality indicators
Year one	599	584
Year two	1,333	3,381
Year three	27,316	20,180
Year four	2,604	24,675
Year five	6,901	15,424
Prior	21,311	15,817
Revolving loans	669	597
Revolving loans converted to term loans	0	3,048
Total loans receivable, gross	60,733	83,706
Commercial banking | Commercial real estate loans - owner occupied
Credit quality indicators
Year one	20,891	24,895
Year two	30,499	93,160
Year three	64,077	93,914
Year four	82,804	88,167
Year five	75,039	55,049
Prior	151,903	125,547
Revolving loans	3,152	9,118
Revolving loans converted to term loans	3,773	8,058
Total loans receivable, gross	432,138	497,908
Commercial banking | Commercial real estate loans - owner occupied | Pass
Credit quality indicators
Year one	20,891	24,895
Year two	30,499	67,162
Year three	58,526	87,497
Year four	80,173	71,626
Year five	59,144	46,760
Prior	126,007	100,081
Revolving loans	1,849	4,422
Revolving loans converted to term loans	3,602	7,648
Total loans receivable, gross	380,691	410,091
Commercial banking | Commercial real estate loans - owner occupied | Substandard
Credit quality indicators
Year one	0	0
Year two	0	21,627
Year three	2,832	1,903
Year four	1,456	12,898
Year five	11,743	4,013
Prior	22,443	21,777
Revolving loans	368	874
Revolving loans converted to term loans	171	410
Total loans receivable, gross	39,013	63,502
Commercial banking | Commercial real estate loans - owner occupied | Special Mention
Credit quality indicators
Year one	0	0
Year two	0	4,371
Year three	2,719	4,514
Year four	1,175	3,643
Year five	4,152	4,276
Prior	3,453	3,689
Revolving loans	935	3,822
Revolving loans converted to term loans	0	0
Total loans receivable, gross	12,434	24,315
Commercial banking | Commercial loans
Credit quality indicators
Year one	268,292	486,924
Year two	175,677	105,971
Year three	95,838	59,426
Year four	45,743	58,462
Year five	46,774	61,025
Prior	106,141	52,371
Revolving loans	248,386	330,967
Revolving loans converted to term loans	31,930	35,964
Total loans receivable, gross	1,018,781	1,191,110
Commercial banking | Commercial loans | Pass
Credit quality indicators
Year one	267,471	479,436
Year two	163,309	99,877
Year three	87,765	50,915
Year four	38,255	51,858
Year five	41,393	58,597
Prior	101,885	49,178
Revolving loans	229,252	286,467
Revolving loans converted to term loans	14,335	16,170
Total loans receivable, gross	943,665	1,092,498
Commercial banking | Commercial loans | Substandard
Credit quality indicators
Year one	234	1,660
Year two	7,089	3,343
Year three	7,236	2,932
Year four	6,470	2,016
Year five	5,191	2,266
Prior	3,548	3,003
Revolving loans	16,487	27,988
Revolving loans converted to term loans	17,595	14,126
Total loans receivable, gross	63,850	57,334
Commercial banking | Commercial loans | Special Mention
Credit quality indicators
Year one	587	5,828
Year two	5,279	2,751
Year three	837	5,579
Year four	1,018	4,588
Year five	190	162
Prior	708	190
Revolving loans	2,647	16,512
Revolving loans converted to term loans	0	5,668
Total loans receivable, gross	$ 11,266	$ 41,278

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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Amortizable intangible assets:
Intangible asset - net	$ 15,362		$ 15,362		$ 19,936
Estimated amortization expense
Amortization expense	1,433	$ 1,760	3,027	$ 3,411
For the year ending December 31, 2021	5,509		5,509
For the year ending December 31, 2022	4,277		4,277
For the year ending December 31, 2023	3,270		3,270
For the year ending December 31, 2024	2,452		2,452
For the year ending December 31, 2025	1,662		1,662
For the year ending December 31, 2026	871		871
Core deposits
Amortizable intangible assets:
Intangible asset - gross	74,899		74,899		71,182
Acquisitions (disposals)	0		0		3,717
Less: accumulated amortization	(59,680)		(59,680)		(56,896)
Intangible asset - net	15,219		15,219		18,003
Customer and contract
Amortizable intangible assets:
Intangible asset - gross	12,775		12,775		12,775
Acquisitions (disposals)	(1,591)		(1,591)		0
Less: accumulated amortization	(11,041)		(11,041)		(10,842)
Intangible asset - net	$ 143		$ 143		$ 1,933

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Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 382,279	$ 346,103
Goodwill acquired		36,176
Purchase accounting adjustment	77
Goodwill disposed of due to sale of insurance business	(1,359)
Balance at the end of the period	$ 380,997	$ 382,279

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Borrowed Funds - Schedule of Borrowed Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Amount	$ 257,377	$ 283,044
Collateralized borrowings
Debt Instrument [Line Items]
Amount	$ 133,876	$ 137,700
Average rate	0.19%
Subordinated debentures
Debt Instrument [Line Items]
Amount	$ 123,501
Average rate	4.00%

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Borrowed Funds - Narrative (Details)		3 Months Ended	6 Months Ended
	Sep. 09, 2020 USD ($)	Jun. 30, 2021 USD ($) business_trust	Jun. 30, 2021 USD ($) business_trust	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Borrowed funds		$ 257,377,000	$ 257,377,000	$ 283,044,000
Number of statutory business trusts owned | business_trust		7	7
Trust preferred investments
Debt Instrument [Line Items]
Maximum period for which interest payment on the subordinated debentures can be deferred			5 years
Interest deferral		$ 0	$ 0
Term notes payable to the Federal Home Loan Bank (FHBLB) | Federal Home Loan Bank of Indianapolis
Debt Instrument [Line Items]
FHLB borrowings matured		2,000,000.0
Line of credit | Federal Home Loan Bank of Pittsburgh
Debt Instrument [Line Items]
Maximum borrowing capacity		250,000,000.0	250,000,000.0
Revolving line of credit		0	0	0
Collateralized borrowings
Debt Instrument [Line Items]
Borrowed funds		133,876,000	133,876,000	$ 137,700,000
Subordinated debentures
Debt Instrument [Line Items]
Borrowed funds		$ 123,501,000	$ 123,501,000
Debt issued	$ 125,000,000.0
Stated rate	4.00%
Debt issuance costs	$ 1,800,000
Debt issuance amortization period	5 years
Subordinated debentures | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	3.89%

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Borrowed Funds - Debt Securities Held-to-maturity on Preferred Securities and Junior Subordinated Debt Held by Trust (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Junior subordinated debentures	$ 128,924	$ 128,794
Trust Preferred Investments
Debt Instrument [Line Items]
Junior subordinated debentures	$ 128,924
Trust Preferred Investments | Northwest Bancorp Capital Trust III
Debt Instrument [Line Items]
Interest rate	1.38%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547
Trust Preferred Investments | Northwest Bancorp Statutory Trust IV
Debt Instrument [Line Items]
Interest rate	1.38%
Capital debt securities	$ 50,000
Junior subordinated debentures	$ 51,547
Trust Preferred Investments | LNB Trust II
Debt Instrument [Line Items]
Interest rate	1.48%
Capital debt securities	$ 7,875
Junior subordinated debentures	$ 8,119
Trust Preferred Investments | UNCT I
Debt Instrument [Line Items]
Interest rate	2.85%
Capital debt securities	$ 8,000
Junior subordinated debentures	$ 7,938
Trust Preferred Investments | UNCT II
Debt Instrument [Line Items]
Interest rate	2.00%
Capital debt securities	$ 3,000
Junior subordinated debentures	$ 2,727
Trust Preferred Investments | MFBC Statutory Trust I
Debt Instrument [Line Items]
Interest rate	1.70%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,528
Trust Preferred Investments | Universal Preferred Trust
Debt Instrument [Line Items]
Interest rate	1.69%
Capital debt securities	$ 5,000
Junior subordinated debentures	$ 3,518

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Guarantees (Details) - Letter of credit $ in Thousands	Jun. 30, 2021 USD ($)
Guarantor Obligations [Line Items]
Maximum exposure collateralized	$ 46,400
Maximum potential amount of future payments	38,000
Liability recognized for the obligations	$ 530,000

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Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 48,967	$ (6,200)	$ 89,204	$ 1,739
Less: Dividends and undistributed earnings allocated to participating securities	340	(47)	619	13
Net income available to common shareholders	48,627	(6,153)	88,585	1,726
Net income available to common shareholders	$ 48,627	$ (6,153)	$ 88,585	$ 1,726
Weighted average common shares outstanding (in shares)	126,749,707	121,480,563	126,456,814	113,672,131
Dilutive potential shares due to effect of stock options (in shares)	887,958	982,754	887,958	982,754
Total weighted average common shares and dilutive potential shares (in shares)	127,637,665	122,463,317	127,344,772	114,654,885
Basic earnings per share (in dollars per share)	$ 0.38	$ (0.05)	$ 0.70	$ 0.02
Diluted earnings per share (in dollars per share)	$ 0.38	$ (0.05)	$ 0.70	$ 0.02

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Pension and Other Post-Retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension benefits
Components of net periodic benefit cost
Service cost	$ 2,860	$ 2,098	$ 5,720	$ 4,196
Interest cost	1,518	1,714	3,035	3,427
Expected return on plan assets	(3,465)	(3,091)	(6,930)	(6,182)
Amortization of prior service cost	(581)	(581)	(1,161)	(1,161)
Amortization of the net loss	1,040	924	2,079	1,848
Net periodic cost	1,372	1,064	2,743	2,128
Pension benefits | Minimum
Components of net periodic benefit cost
Estimated contribution for the current year	4,000		4,000
Pension benefits | Maximum
Components of net periodic benefit cost
Estimated contribution for the current year	8,000		8,000
Other post-retirement benefits
Components of net periodic benefit cost
Service cost	0	0	0	0
Interest cost	5	6	9	13
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	0	0
Amortization of the net loss	3	4	7	9
Net periodic cost	$ 8	$ 10	$ 16	$ 22

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Disclosures About Fair Value of Financial Instruments - Narrative (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Significant unrealized appreciation or depreciation in financial instruments	$ 0	$ 0

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Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financial assets:
Securities available-for-sale	$ 1,599,024	$ 1,398,941
Securities held-to-maturity	632,620	179,666
Accrued interest receivable	27,585	35,554
Derivative assets	42,149	61,433
Financial liabilities:
Junior subordinated debentures	128,924	128,794
Derivative liabilities	38,437	54,665
Level 1
Financial assets:
Cash and cash equivalents	857,152	736,277
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	27,585	35,554
FHLB stock	0	0
Total financial assets	884,737	771,831
Financial liabilities:
Savings and checking deposits	10,627,610	9,957,137
Time deposits	0	0
Borrowed funds	133,876	159,745
Junior subordinated debentures	0	0
Accrued interest payable	1,820	2,054
Total financial liabilities	10,763,306	10,118,936
Level 1 | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Level 1 | Forward commitments
Financial assets:
Derivative assets	0	0
Level 1 | Foreign exchange swaps
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities	0
Level 1 | Interest rate swap agreements
Financial assets:
Derivative assets	0	0
Level 1 | Interest rate swap agreements | Interest rate swaps not designated as hedging instruments
Financial liabilities:
Derivative liabilities	0	0
Level 1 | Risk participation agreements
Financial liabilities:
Derivative liabilities	0	0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	1,599,024	1,398,941
Securities held-to-maturity	632,620	179,666
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	2,270,185	1,633,575
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	0	0
Borrowed funds	128,529	123,329
Junior subordinated debentures	0	0
Accrued interest payable	0	0
Total financial liabilities	166,966	177,994
Level 2 | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Level 2 | Forward commitments
Financial assets:
Derivative assets	393	1,105
Level 2 | Foreign exchange swaps
Financial assets:
Derivative assets	94
Financial liabilities:
Derivative liabilities	4
Level 2 | Interest rate swap agreements
Financial assets:
Derivative assets	38,054	53,863
Level 2 | Interest rate swap agreements | Interest rate swaps not designated as hedging instruments
Financial liabilities:
Derivative liabilities	38,349	54,579
Level 2 | Risk participation agreements
Financial liabilities:
Derivative liabilities	84	86
Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	10,152,694	10,334,521
Residential mortgage loans held-for-sale	29,055	58,786
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	10,185,357	10,399,772
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	1,480,940	1,669,546
Borrowed funds	0	0
Junior subordinated debentures	121,598	121,106
Accrued interest payable	0	0
Total financial liabilities	1,602,538	1,790,652
Level 3 | Interest rate lock commitments
Financial assets:
Derivative assets	3,608	6,465
Level 3 | Forward commitments
Financial assets:
Derivative assets	0	0
Level 3 | Foreign exchange swaps
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities	0
Level 3 | Interest rate swap agreements
Financial assets:
Derivative assets	0	0
Level 3 | Interest rate swap agreements | Interest rate swaps not designated as hedging instruments
Financial liabilities:
Derivative liabilities	0	0
Level 3 | Risk participation agreements
Financial liabilities:
Derivative liabilities	0	0
Carrying amount
Financial assets:
Cash and cash equivalents	857,152	736,277
Securities available-for-sale	1,599,024	1,398,941
Securities held-to-maturity	639,424	178,887
Loans receivable, net	10,163,595	10,387,636
Residential mortgage loans held-for-sale	29,055	58,786
Accrued interest receivable	27,585	35,554
FHLB stock	23,287	21,748
Total financial assets	13,381,271	12,879,262
Financial liabilities:
Savings and checking deposits	10,627,610	9,957,137
Time deposits	1,463,098	1,642,096
Borrowed funds	257,377	283,044
Junior subordinated debentures	128,924	128,794
Accrued interest payable	1,820	2,054
Total financial liabilities	12,517,266	12,067,790
Carrying amount | Interest rate lock commitments
Financial assets:
Derivative assets	3,608	6,465
Carrying amount | Forward commitments
Financial assets:
Derivative assets	393	1,105
Carrying amount | Foreign exchange swaps
Financial assets:
Derivative assets	94
Financial liabilities:
Derivative liabilities	4
Carrying amount | Interest rate swap agreements
Financial assets:
Derivative assets	38,054	53,863
Carrying amount | Interest rate swap agreements | Interest rate swaps not designated as hedging instruments
Financial liabilities:
Derivative liabilities	38,349	54,579
Carrying amount | Risk participation agreements
Financial liabilities:
Derivative liabilities	84	86
Estimated fair value
Financial assets:
Cash and cash equivalents	857,152	736,277
Securities available-for-sale	1,599,024	1,398,941
Securities held-to-maturity	632,620	179,666
Loans receivable, net	10,152,694	10,334,521
Residential mortgage loans held-for-sale	29,055	58,786
Accrued interest receivable	27,585	35,554
FHLB stock	23,287	21,748
Total financial assets	13,363,566	12,826,926
Financial liabilities:
Savings and checking deposits	10,627,610	9,957,137
Time deposits	1,480,940	1,669,546
Borrowed funds	262,405	283,074
Junior subordinated debentures	121,598	121,106
Accrued interest payable	1,820	2,054
Total financial liabilities	12,532,810	12,087,582
Estimated fair value | Interest rate lock commitments
Financial assets:
Derivative assets	3,608	6,465
Estimated fair value | Forward commitments
Financial assets:
Derivative assets	393	1,105
Estimated fair value | Foreign exchange swaps
Financial assets:
Derivative assets	94
Financial liabilities:
Derivative liabilities	4
Estimated fair value | Interest rate swap agreements
Financial assets:
Derivative assets	38,054	53,863
Estimated fair value | Interest rate swap agreements | Interest rate swaps not designated as hedging instruments
Financial liabilities:
Derivative liabilities	38,349	54,579
Estimated fair value | Risk participation agreements
Financial liabilities:
Derivative liabilities	$ 84	$ 86

XML

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	$ 1,599,024	$ 1,398,941
Derivative assets	42,149	61,433
Derivative liabilities	38,437	54,665
Level 1
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Total financial assets	884,737	771,831
Level 2
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	1,599,024	1,398,941
Total financial assets	2,270,185	1,633,575
Level 3
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Total financial assets	10,185,357	10,399,772
Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	246,141	252,237
Total mortgage-backed securities	1,352,883	1,146,704
Total financial assets	1,641,173	1,460,374
Total liabilities	38,437	54,665
Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Total mortgage-backed securities	0	0
Total financial assets	0	0
Total liabilities	0	0
Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	246,141	252,237
Total mortgage-backed securities	1,352,883	1,146,704
Total financial assets	1,637,565	1,453,909
Total liabilities	38,437	54,665
Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Total mortgage-backed securities	0	0
Total financial assets	3,608	6,465
Total liabilities	0	0
U.S. government and agencies | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	59,254	40,917
U.S. government and agencies | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
U.S. government and agencies | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	59,254	40,917
U.S. government and agencies | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Government-sponsored enterprises | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	71,858	94,507
Government-sponsored enterprises | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
Government-sponsored enterprises | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	71,858	94,507
Government-sponsored enterprises | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
States and political subdivisions | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	115,029	116,813
States and political subdivisions | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
States and political subdivisions | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	115,029	116,813
States and political subdivisions | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Debt securities:	0	0
GNMA | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	19,887	23,026
Collateralized mortgage obligations:	490,520	343,409
GNMA | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
GNMA | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	19,887	23,026
Collateralized mortgage obligations:	490,520	343,409
GNMA | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
FNMA | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	184,700	203,571
Collateralized mortgage obligations:	306,516	262,109
FNMA | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
FNMA | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	184,700	203,571
Collateralized mortgage obligations:	306,516	262,109
FNMA | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
FHLMC | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	114,475	134,572
Collateralized mortgage obligations:	236,337	179,552
FHLMC | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
FHLMC | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	114,475	134,572
Collateralized mortgage obligations:	236,337	179,552
FHLMC | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations:	0	0
Non-agency | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	448	465
Non-agency | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Non-agency | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	448	465
Non-agency | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Interest rate lock commitments | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	3,608	6,465
Interest rate lock commitments | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	3,608	6,465
Interest rate lock commitments | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	3,608	6,465
Forward commitments | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Forward commitments | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	393	1,105
Forward commitments | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Forward commitments | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	393	1,105
Forward commitments | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Forward commitments | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	393	1,105
Forward commitments | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Foreign exchange swaps | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Foreign exchange swaps | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	94
Derivative liabilities	4
Foreign exchange swaps | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Foreign exchange swaps | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	94
Derivative liabilities	4
Foreign exchange swaps | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Foreign exchange swaps | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	94
Derivative liabilities	4
Foreign exchange swaps | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Interest rate swaps not designated as hedging instruments | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate swaps not designated as hedging instruments | Level 1 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Interest rate swaps not designated as hedging instruments | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	38,054	53,863
Interest rate swaps not designated as hedging instruments | Level 2 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	38,349	54,579
Interest rate swaps not designated as hedging instruments | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate swaps not designated as hedging instruments | Level 3 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Interest rate swaps not designated as hedging instruments | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		53,863
Derivative liabilities		54,579
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	38,054
Derivative liabilities	38,349
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Derivative liabilities		0
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 1 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		53,863
Derivative liabilities		54,579
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 2 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	38,054
Derivative liabilities	38,349
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Derivative liabilities		0
Interest rate swaps not designated as hedging instruments | Measured on recurring basis | Level 3 | Interest rate swaps not designated as hedging instruments
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Derivative liabilities	0
Risk participation agreements | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Risk participation agreements | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	84	86
Risk participation agreements | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Risk participation agreements | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	84	86
Risk participation agreements | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Risk participation agreements | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	84	86
Risk participation agreements | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	$ 0	$ 0

XML

Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	$ 5,060	$ 507	$ 6,465	$ 559
Total gains or losses:
Included in net income	0	0	0	0
Included in other comprehensive income	0	0	0	0
Interest rate lock commitments:
Net activity	(1,452)	6,909	(2,857)	6,857
Transfers from Level 3	0	0	0	0
Transfers into Level 3	0	0	0	0
Ending balance	$ 3,608	$ 7,416	$ 3,608	$ 7,416

XML

Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 0	$ 0
Total financial assets	884,737	771,831
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Total financial assets	2,270,185	1,633,575
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	10,152,694	10,334,521
Total financial assets	10,185,357	10,399,772
Fair value measurements nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	2,211
Real estate owned, net	1,353	2,232
Total financial assets	94,852	97,535
Fair value measurements nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0
Real estate owned, net	0	0
Total financial assets	0	0
Fair value measurements nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0
Real estate owned, net	0	0
Total financial assets	0	0
Fair value measurements nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	2,211
Real estate owned, net	1,353	2,232
Total financial assets	94,852	97,535
Impaired loans | Fair value measurements nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	91,288	95,303
Impaired loans | Fair value measurements nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Impaired loans | Fair value measurements nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Impaired loans | Fair value measurements nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 91,288	$ 95,303

XML

Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details) - Fair value measurements nonrecurring	6 Months Ended
	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights	$ 2,211,000
Real estate owned, net	$ 1,353,000	$ 2,232,000
Estimated cost to sell | Impaired loans | Appraisal value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed, measurement input	0.100
Estimated cost to sell | Real estate owned | Appraisal value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Real estate owned, net, measurement input	0.100
Discount rate | Impaired loans | Discounted cash flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed, measurement input	0.1092
Discount rate | Impaired loans | Discounted cash flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed, measurement input	0.154
Discount rate | Impaired loans | Discounted cash flow | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed, measurement input	0.1227
Annual service cost | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	84
Prepayment rates | Discounted cash flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.119
Prepayment rates | Discounted cash flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.281
Prepayment rates | Discounted cash flow | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.223
Expected life (months) | Discounted cash flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, term	41 months 12 days
Expected life (months) | Discounted cash flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, term	70 months 21 days
Expected life (months) | Discounted cash flow | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, term	57 months 9 days
Option adjusted spread | Discounted cash flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0750
Forward yield curve | Discounted cash flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0009
Forward yield curve | Discounted cash flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, measurement input	0.0156
Impaired loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed	$ 91,288,000	$ 95,303,000

XML

Derivative Financial Instruments - Narrative (Details) - Derivatives designated as hedging instruments $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2020 USD ($) derivative	Sep. 30, 2020 USD ($)
Derivative [Line Items]
Cash flow hedges reclassification for discontinued		$ 1.3
Interest rate swaps not designated as hedging instruments
Derivative [Line Items]
Number of derivatives | derivative	4
Derivative, notional amount	$ 100.0
Interest rate swaps not designated as hedging instruments | Minimum
Derivative [Line Items]
Derivative contract maturities	3 years
Interest rate swaps not designated as hedging instruments | Maximum
Derivative [Line Items]
Derivative contract maturities	5 years

XML

Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Asset derivatives, notional amount	$ 747,788	$ 796,131
Asset derivatives, fair value	42,149	61,433
Liability derivatives, notional amount	687,274	676,832
Liability derivatives, fair value	38,437	54,665
Interest rate swaps not designated as hedging instruments | Interest rate swap agreements
Derivative [Line Items]
Asset derivatives, notional amount	602,029	599,300
Asset derivatives, fair value	38,054	53,863
Liability derivatives, notional amount	602,029	599,300
Liability derivatives, fair value	38,349	54,579
Interest rate swaps not designated as hedging instruments | Foreign exchange swaps
Derivative [Line Items]
Asset derivatives, notional amount	6,265
Asset derivatives, fair value	94
Liability derivatives, notional amount	3,088
Liability derivatives, fair value	4
Interest rate swaps not designated as hedging instruments | Interest rate lock commitments
Derivative [Line Items]
Asset derivatives, notional amount	127,328	171,357
Asset derivatives, fair value	3,608	6,465
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Interest rate swaps not designated as hedging instruments | Forward commitments
Derivative [Line Items]
Asset derivatives, notional amount	12,166	25,474
Asset derivatives, fair value	393	1,105
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Interest rate swaps not designated as hedging instruments | Risk participation agreements
Derivative [Line Items]
Asset derivatives, notional amount	0	0
Asset derivatives, fair value	0	0
Liability derivatives, notional amount	82,157	77,532
Liability derivatives, fair value	$ 84	$ 86

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Derivative Financial Instruments - Gain (Loss) on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Hedging derivatives:
Decrease in interest expense	$ 0	$ (90)	$ 0	$ (102)
Increase/(decrease) in other income
Non-hedging swap derivatives:
Increase/(decrease) in other income	(26)	(345)	498	(522)
Increase in mortgage banking income
Non-hedging swap derivatives:
Increase/(decrease) in other income	$ 1,510	$ 8,247	$ 3,570	$ 8,248

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Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Changes in accumulated other comprehensive income by component
Balance beginning of the period	$ 1,540,994	$ 1,341,792	$ 1,538,703	$ 1,353,285
Other comprehensive income/(loss) before reclassification adjustments	4,322	4,253	(13,099)	12,001
Amounts reclassified from accumulated other comprehensive income	198	214	456	500
Other comprehensive income/(loss)	4,520	4,467	(12,643)	12,501
Balance end of the period	1,575,361	1,530,849	1,575,361	1,530,849
Unrealized holding gains (losses), tax	1,245	1,902	(4,736)	5,179
Reclassification adjustment for gains included in net income, tax	(43)	(13)	(65)	1
Reclassification adjustment for prior period service costs included in net income, tax	128	99	258	198
Reclassification adjustment for losses included in net income, tax		(47)		(209)
Unrealized  gains/(losses)  on securities  available-for-sale
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(653)	11,341	16,843	3,147
Other comprehensive income/(loss) before reclassification adjustments	4,322	4,790	(13,099)	12,947
Amounts reclassified from accumulated other comprehensive income	(136)	(35)	(211)	2
Other comprehensive income/(loss)	4,186	4,755	(13,310)	12,949
Balance end of the period	3,533	16,096	3,533	16,096
Change in  fair value  of interest  rate swaps
Changes in accumulated other comprehensive income by component
Balance beginning of the period	0	(409)	0	0
Other comprehensive income/(loss) before reclassification adjustments	0	(537)	0	(946)
Amounts reclassified from accumulated other comprehensive income	0	0	0	0
Other comprehensive income/(loss)	0	(537)	0	(946)
Balance end of the period	0	(946)	0	(946)
Change in  defined benefit  pension plans
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(50,059)	(39,839)	(50,392)	(40,088)
Other comprehensive income/(loss) before reclassification adjustments	0	0	0	0
Amounts reclassified from accumulated other comprehensive income	334	249	667	498
Other comprehensive income/(loss)	334	249	667	498
Balance end of the period	(49,725)	(39,590)	(49,725)	(39,590)
Total
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(50,712)	(28,907)	(33,549)	(36,941)
Other comprehensive income/(loss)	4,520	4,467	(12,643)	12,501
Balance end of the period	$ (46,192)	$ (24,440)	$ (46,192)	$ (24,440)

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Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]