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 March 31, 2016

Commission File No. 001-36408

PACWEST BANCORP

(Exact name of registrant as specified in its charter)

Delaware	33-0885320
(State of Incorporation)	(I.R.S. Employer Identification No.)

9701 Wilshire Blvd., Suite 700

Beverly Hills, CA 90212

(Address of Principal Executive Offices, Including Zip Code)

(310) 887-8500

(Registrant's Telephone Number, Including Area Code)

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

YesþNoo

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

YesþNoo

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

þ Large accelerated filer		o Accelerated filer
o Non-accelerated filer	(Do not check if a smaller reporting company)	o Smaller reporting company

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

As of April 27, 2016, there were 120,208,695 shares of the registrant's common stock outstanding, excluding 1,560,386 shares of unvested restricted stock.

1

PACWEST BANCORP

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Condensed Consolidated Financial Statements (Unaudited)
	Condensed Consolidated Balance Sheets (Unaudited)	3
	Condensed Consolidated Statements of Earnings (Unaudited)	4
	Condensed Consolidated Statements of Comprehensive Income (Unaudited)	5
	Condensed Consolidated Statement Changes in Stockholders' Equity (Unaudited)	6
	Condensed Consolidated Statements of Cash Flows (Unaudited)	7
	Notes to Condensed Consolidated Financial Statements (Unaudited)	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	35
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	62
Item 4.	Controls and Procedures	64
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	65
Item 1A.	Risk Factors	65
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	65
Item 6.	Index to Exhibits	66
Signatures		67

2

PACWEST BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

	March 31,			December 31,
	2016			2015
	(Unaudited)
	(Dollars in thousands)
ASSETS:
Cash and due from banks	$	161,977		$	161,020
Interest-earning deposits in financial institutions	357,541			235,466
Total cash and cash equivalents	519,518			396,486
Securities available-for-sale, at fair value	3,240,586			3,559,437
Federal Home Loan Bank stock, at cost	17,250			19,710
Total investment securities	3,257,836			3,579,147
Gross loans and leases	14,542,522			14,528,165
Deferred fees and costs	(59,005		)	(49,911		)
Allowance for loan and lease losses	(130,361		)	(115,111		)
Total loans and leases, net	14,353,156			14,363,143
Equipment leased to others under operating leases	205,163			197,452
Premises and equipment, net	39,713			39,197
Foreclosed assets, net	18,310			22,120
Goodwill	2,175,791			2,176,291
Core deposit and customer relationship intangibles, net	48,137			53,220
Deferred tax asset, net	91,126			126,389
Other assets	322,259			335,045
Total assets	$	21,031,009		$	21,288,490
LIABILITIES:
Noninterest-bearing deposits	$	6,139,963		$	6,171,455
Interest-bearing deposits	9,301,412			9,494,727
Total deposits	15,441,375			15,666,182
Borrowings	551,401			621,914
Subordinated debentures	438,723			436,000
Accrued interest payable and other liabilities	142,918			166,703
Total liabilities	16,574,417			16,890,799
Commitments and contingencies (Note 8)	—			—
STOCKHOLDERS' EQUITY:
Preferred stock ($0.01 par value; 5,000,000 shares authorized; none issued and outstanding)	—			—
Common stock ($0.01 par value, 200,000,000 shares authorized at March 31, 2016 and December 31, 2015;
123,153,983 and 122,791,729 shares issued, respectively, including 1,562,557 and 1,211,951 shares of
unvested restricted stock, respectively)	1,232			1,228
Additional paid-in capital	4,353,706			4,405,775
Retained earnings	104,363			13,907
Treasury stock, at cost (1,382,731 and 1,378,002 shares at March 31, 2016 and December 31, 2015)	(51,188		)	(51,047		)
Accumulated other comprehensive income, net	48,479			27,828
Total stockholders' equity	4,456,592			4,397,691
Total liabilities and stockholders' equity	$	21,031,009		$	21,288,490

See Notes to Condensed Consolidated Financial Statements.

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PACWEST BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Unaudited)
	(Dollars in thousands, except per share data)
Interest income:
Loans and leases	$	236,375		$	219,677		$	202,097
Investment securities	22,547			23,648			12,195
Deposits in financial institutions	308			172			22
Total interest income	259,230			243,497			214,314
Interest expense:
Deposits	9,073			9,391			10,479
Borrowings	581			159			235
Subordinated debentures	4,982			4,748			4,525
Total interest expense	14,636			14,298			15,239
Net interest income	244,594			229,199			199,075
Provision for credit losses	20,140			13,772			16,434
Net interest income after provision for credit losses	224,454			215,427			182,641
Noninterest income:
Service charges on deposit accounts	3,856			3,901			2,574
Other commissions and fees	11,489			12,691			5,396
Leased equipment income	8,244			7,791			5,382
Gain on sale of loans and leases	245			183			—
Gain on sale of securities	8,110			—			3,275
FDIC loss sharing expense, net	(2,415		)	(4,291		)	(4,399		)
Other income	5,010			7,783			8,643
Total noninterest income	34,539			28,058			20,871
Noninterest expense:
Compensation	61,065			58,992			47,737
Occupancy	12,632			12,194			10,600
Data processing	5,904			5,585			4,308
Other professional services	3,572			3,811			3,221
Insurance and assessments	4,965			5,450			3,025
Intangible asset amortization	4,746			4,910			1,501
Leased equipment depreciation	5,024			4,235			3,103
Foreclosed assets (income) expense, net	(561		)	(3,185		)	336
Acquisition, integration and reorganization costs	200			17,600			2,000
Other expense	13,141			12,672			8,529
Total noninterest expense	110,688			122,264			84,360
Earnings before income taxes	148,305			121,221			119,152
Income tax expense	(57,849		)	(49,380		)	(46,073		)
Net earnings	$	90,456		$	71,841		$	73,079
Earnings per share:
Basic	$	0.74		$	0.60		$	0.71
Diluted	$	0.74		$	0.60		$	0.71
Dividends declared per share	$	0.50		$	0.50		$	0.50

See Notes to Condensed Consolidated Financial Statements.

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PACWEST BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Unaudited)
	(In thousands)
Net earnings	$	90,456		$	71,841		$	73,079
Other comprehensive income, net of tax:
Unrealized net holding gains on securities
available-for-sale arising during the period	43,093			5,874			7,363
Income tax expense related to net unrealized
holding gains arising during the period	(17,655		)	(2,505		)	(3,105		)
Unrealized net holding gains on securities
available-for-sale, net of tax	25,438			3,369			4,258
Reclassification adjustment for net gains included
in net earnings (1)	(8,110		)	—			(3,275		)
Income tax expense related to reclassification
adjustment	3,323			—			1,381
Reclassification adjustment for net gains
included in net earnings, net of tax	(4,787		)	—			(1,894		)
Other comprehensive income, net of tax	20,651			3,369			2,364
Comprehensive income	$	111,107		$	75,210		$	75,443

^{___________________________________} 

(1) Entire amounts are recognized in "Gain on sale of securities" on the Condensed Consolidated Statements of Earnings.

See Notes to Condensed Consolidated Financial Statements.

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PACWEST BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY

	Three Months Ended March 31, 2016
	Common Stock												Accumulated
					Additional								Other
			Par		Paid-in			Retained		Treasury			Comprehensive
	Shares		Value		Capital			Earnings		Stock			Income		Total
	(Unaudited)
	(Dollars in thousands, except share data)
Balance, December 31, 2015	121,413,727		$	1,228	$	4,405,775		$	13,907	$	(51,047	)	$	27,828	$	4,397,691
Net earnings	—		—		—			90,456		—			—		90,456
Other comprehensive income - net
unrealized gain on securities
available-for-sale, net of tax	—		—		—			—		—			20,651		20,651
Restricted stock awarded and earned stock
compensation, net of shares forfeited	362,254		4		5,042			—		—			—		5,046
Restricted stock surrendered	(4,729	)	—		—			—		(141		)	—		(141		)
Tax effect from vesting of restricted stock	—		—		3,795			—		—			—		3,795
Cash dividends paid	—		—		(60,906		)	—		—			—		(60,906		)
Balance, March 31, 2016	121,771,252		$	1,232	$	4,353,706		$	104,363	$	(51,188	)	$	48,479	$	4,456,592

See Notes to Condensed Consolidated Financial Statements.

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PACWEST BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

	Three Months Ended
	March 31,
	2016			2015
	(Unaudited)
	(Dollars in thousands)
Cash flows from operating activities:
Net earnings	$	90,456		$	73,079
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	22,488			10,648
Provision for credit losses	20,140			16,434
(Gain) loss on sale of foreclosed assets	(504		)	106
Provision for losses on foreclosed assets	—			124
Gain on sale of loans and leases	(245		)	—
Gain on sale of premises and equipment	(6		)	(3		)
Gain on sale of securities	(8,110		)	(3,275		)
Unrealized gain on derivatives and foreign currencies, net	(250		)	(2,715		)
Earned stock compensation	5,046			3,112
Loss on sale of leasing unit	720			—
Tax effect included in stockholders' equity of restricted stock vesting	(3,795		)	—
Decrease in accrued and deferred income taxes, net	24,726			38,722
Decrease in other assets	5,214			19,356
Decrease in accrued interest payable and other liabilities	(23,722		)	(29,102		)
Net cash provided by operating activities	132,158			126,486
Cash flows from investing activities:
Net increase in loan and leases	(170,465		)	(403,438		)
Proceeds from sales of loans and leases	26,903			—
Securities available-for-sale:
Proceeds from maturities and paydowns	61,626			27,547
Proceeds from sales	343,031			144,945
Purchases	(52,236		)	(196,568		)
Net redemptions of Federal Home Loan Bank stock	2,460			11,704
Proceeds from sales of foreclosed assets	4,443			7,945
Purchases of premises and equipment, net	(2,896		)	(1,490		)
Proceeds from sales of premises and equipment	6			29
Proceeds from sale of leasing unit	138,809			—
Proceeds from BOLI death benefit	1,853			—
Net increase of equipment leased to others under operating leases	(12,300		)	—
Net cash provided by (used in) investing activities	341,234			(409,326		)
Cash flows from financing activities:
Net (decrease) increase in deposits:
Noninterest-bearing	(31,310		)	97,224
Interest-bearing	(193,315		)	80,914
Net (decrease) increase in borrowings	(68,483		)	234,754
Restricted stock surrendered	(141		)	—
Tax effect included in stockholders' equity of restricted vesting stock	3,795			—
Cash dividends paid	(60,906		)	(51,424		)
Net cash (used in) provided by financing activities	(350,360		)	361,468
Net increase in cash and cash equivalents	123,032			78,628
Cash and cash equivalents at beginning of period	396,486			313,226
Cash and cash equivalents at end of period	$	519,518		$	391,854
Supplemental disclosures of cash flow information:
Cash paid for interest	$	15,080		$	12,334
Cash paid (received) for income taxes	15,773			(7,695		)
Loans transferred to foreclosed assets	129			394

See Notes to Condensed Consolidated Financial Statements.

7

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 1.  Organization    

PacWest Bancorp is a bank holding company registered under the Bank Holding Company Act of 1956, as amended. Our principal business is to serve as the holding company for our wholly-owned banking subsidiary, Pacific Western Bank, which we refer to as “Pacific Western” or the “Bank.” When we say “we,” “our,” or the “Company,” we mean PacWest Bancorp together with its subsidiaries on a consolidated basis. When we refer to “PacWest” or to the holding company, we are referring to PacWest Bancorp, the parent company, on a stand‑alone basis. As of March 31, 2016, the Company had total assets of $21.0 billion, gross loans and leases of $14.5 billion, total deposits of $15.4 billion and total stockholders' equity of $4.5 billion.

We are focused on relationship-based business banking to small, middle-market and venture-backed businesses nationwide. The Bank offers a broad range of loan and lease and deposit products and services through 79 full-service branches located throughout the State of California, one branch located in Durham, North Carolina, and several loan production offices located in cities across the country. We provide commercial banking services, including real estate, construction, and commercial loans and leases, and comprehensive deposit and treasury management services to small and middle market businesses. Pacific Western offers products and services through its CapitalSource and Square 1 Bank divisions. CapitalSource focuses on providing cash flow, asset-based, equipment and real estate loans and treasury management services to established middle-market businesses on a national basis. Square 1 Bank focuses on providing a comprehensive suite of financial products tailored to service entrepreneurial businesses and their venture capital and private equity investors, with offices located in key innovation hubs across the United States. In addition, we provide investment advisory and asset management services to select clients through Square 1 Asset Management, Inc., a wholly-owned subsidiary of the Bank and a SEC-registered investment adviser. When we refer to "CapitalSource Inc." we are referring to the company acquired on April 7, 2014 and when we refer to the "CapitalSource Division" we are referring to a division of Pacific Western Bank that specializes in middle-market lending on a nationwide basis.

We generate our revenue primarily from interest received on loans and leases and, to a lesser extent, from interest received on investment securities, and fees received in connection with deposit services, extending credit and other services offered, including foreign exchange services. Our major operating expenses are compensation, occupancy, general operating expenses, and the interest paid by the Bank on deposits and borrowings.

We have completed 28 acquisitions from May 1, 2000 through March 31, 2016, including the acquisition of Square 1 Financial, Inc. ("Square 1") on October 6, 2015. Our acquisitions have been accounted for using the acquisition method of accounting and, accordingly, the operating results of the acquired entities have been included in the consolidated financial statements from their respective acquisition dates. See Note 2. Acquisitions, for more information about the Square 1 acquisition.

On March 31, 2016, we sold our Pacific Western Equipment Finance ("PWEF") leasing unit in Midvale, Utah, including approximately $139 million of outstanding lease balances.

Significant Accounting Policies

Except as discussed below, our accounting policies are described in Note 1, Nature of Operations and Summary of Significant Accounting Policies, of our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 as filed with the Securities and Exchange Commission ("Form 10-K").

Basis of Presentation

Our interim consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K.

8

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Use of Estimates

We have made a number of estimates and assumptions related to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period to prepare these condensed consolidated financial statements in conformity with U.S. GAAP. Material estimates subject to change in the near term include, among other items, the allowance for credit losses, the carrying value and useful lives of intangible assets, the carrying value of the FDIC loss sharing asset, the realization of deferred tax assets, and the fair value estimates of assets acquired and liabilities assumed in acquisitions. These estimates may be adjusted as more current information becomes available, and any adjustment may be significant.

As described in Note 2, Acquisitions, the acquired assets and liabilities of Square 1 were measured at their estimated fair values. We made significant estimates and exercised significant judgment in estimating fair values and accounting for such acquired assets and assumed liabilities.

Reclassifications

Certain prior period amounts have been reclassified to conform to the current period's presentation format. The operating segments previously reported have been aggregated to one segment to conform to the current period's presentation format.

Note 2.  Acquisitions    

Square 1 Financial, Inc. Acquisition

We acquired Square 1 Financial, Inc. ("Square 1") on October 6, 2015. As part of the acquisition, Square 1 Bank, a wholly-owned subsidiary of Square 1, merged with and into Pacific Western. At closing, we formed the Square 1 Bank Division of the Bank which focuses on providing a comprehensive suite of financial services to entrepreneurial businesses and their venture capital and private equity investors nationwide.

We completed this acquisition to increase our core deposits, expand our nationwide lending platform, and increase our presence in the technology and life-sciences credit markets. The Square 1 acquisition has been accounted for under the acquisition method of accounting. We acquired $4.6 billion of assets and assumed $3.8 billion of liabilities upon closing of the acquisition. The assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the acquisition date. We made significant estimates and exercised significant judgment in estimating fair values and accounting for such acquired assets and liabilities. Such fair values are preliminary estimates and are subject to adjustment for up to one year after the acquisition date or when additional information relative to the closing date fair values becomes available and such information is considered final, whichever is earlier. The fair value of the acquired net tax assets, once the final tax returns have been filed, may change. The application of the acquisition method of accounting resulted in goodwill of $447.9 million. All of the recognized goodwill is expected to be non-deductible for tax purposes.

9

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Acquisition-Related Charges

The costs shown for the three months ended March 31, 2016 and December 31, 2015 relate to the Square 1 acquisition and ongoing systems integration. The following table presents the components of acquisition, integration and reorganization costs for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Acquisition, Integration and Reorganization Costs:
Severance and employee-related	$	—	$	10,500	$	—
System conversion and integration	200		3,802		—
Asset write-downs, lease terminations and
other facilities-related	—		125		—
Investment banking deal costs	—		—		1,050
Other (legal, accounting, insurance, consulting)	—		3,173		950
Total acquisition, integration and
reorganization costs	$	200	$	17,600	$	2,000

Note 3.  Goodwill and Other Intangible Assets

Goodwill arises from the acquisition method of accounting for business combinations and represents the excess of the purchase price over the fair value of the net assets and other identifiable intangible assets acquired. Our intangible assets with definite lives are core deposit intangibles ("CDI") and customer relationship intangibles ("CRI").

Goodwill and other intangible assets deemed to have indefinite lives generated from business combinations are not subject to amortization and are instead tested for impairment no less than annually. Impairment exists when the carrying value of goodwill exceeds its implied fair value. An impairment loss would be recognized in an amount equal to that excess and would be included in “Noninterest expense” in the condensed consolidated statements of earnings.

CDI and CRI are amortized over their respective estimated useful lives and reviewed for impairment at least quarterly. The amortization expense represents the estimated decline in the value of the underlying deposits or loan and lease customers acquired. The weighted average amortization period remaining for all of our CDI and CRI as of March 31, 2016 is 6.0 years. The aggregate CDI and CRI amortization expense is expected to be $16.1 million for 2016. The estimated aggregate amortization expense related to these intangible assets for each of the next five years is $11.5 million for 2017, $8.8 million for 2018, $6.7 million for 2019, $4.7 million for 2020, and $3.0 million for 2021.

The following table presents the changes in the carrying amount of goodwill for the period indicated:    

	Goodwill
	(In thousands)
Balance, December 31, 2015	$	2,176,291
Reduction due to sale of PWEF leasing unit	(500		)
Balance, March 31, 2016	$	2,175,791

Through the sale of the PWEF leasing unit, $500,000 of goodwill was allocated to this business group; such goodwill reduction is included in the loss on sale of the PWEF leasing unit and included in "Other income" in the condensed consolidated statement of earnings.

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PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following table presents the changes in CDI and CRI and the related accumulated amortization for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Gross Amount of CDI and CRI:
Balance, beginning of period	$	95,524		$	53,090		$	53,090
Additions	—			45,426			—
Fully amortized portion	—			(2,992		)	—
Reduction due to sale of PWEF leasing unit	(1,700		)	—			—
Balance, end of period	93,824			95,524			53,090
Accumulated Amortization:
Balance, beginning of period	(42,304		)	(40,386		)	(35,886		)
Amortization	(4,746		)	(4,910		)	(1,501		)
Fully amortized portion	—			2,992			—
Reduction due to sale of PWEF leasing unit	1,363			—			—
Balance, end of period	(45,687		)	(42,304		)	(37,387		)
Net CDI and CRI, end of period	$	48,137		$	53,220		$	15,703

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PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 4. Investment Securities     

Securities Available-for-Sale

The following table presents amortized cost, gross unrealized gains and losses, and carrying values of securities available-for-sale as of the dates indicated:

	March 31, 2016									December 31, 2015
			Gross		Gross							Gross		Gross
	Amortized		Unrealized		Unrealized			Fair		Amortized		Unrealized		Unrealized			Fair
Security Type:	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
	(In thousands)
Residential mortgage-backed securities:
Government agency and
government-sponsored enterprise
pass-through securities	$	642,233	$	12,865	$	(1,233	)	$	653,865	$	759,881	$	12,075	$	(4,159	)	$	767,797
Government agency and
government-sponsored enterprise
collateralized mortgage obligations	431,456		12,515		(239		)	443,732		486,065		3,584		(3,410		)	486,239
Covered private label collateralized
mortgage obligations	23,026		5,064		(227		)	27,863		24,113		5,794		(125		)	29,782
Other private label collateralized
mortgage obligations	108,019		246		(883		)	107,382		115,952		43		(981		)	115,014
Municipal securities	1,457,795		59,886		(89		)	1,517,592		1,508,968		39,435		(1,072		)	1,547,331
US Treasury securities	—		—		—			—		70,196		—		(816		)	69,380
Corporate debt securities	47,269		303		(2,089		)	45,483		49,047		327		(950		)	48,424
Collateralized loan obligations	142,637		42		(3,107		)	139,572		133,192		128		(1,131		)	132,189
SBA securities	201,934		947		(207		)	202,674		211,946		41		(830		)	211,157
Government-sponsored enterprise debt
securities	—		—		—			—		36,302		611		—			36,913
Asset-backed and other securities	104,182		135		(1,894		)	102,423		116,723		119		(1,631		)	115,211
Total	$	3,158,551	$	92,003	$	(9,968	)	$	3,240,586	$	3,512,385	$	62,157	$	(15,105	)	$	3,559,437

As of March 31, 2016, securities available‑for‑sale with a carrying value of $414.6 million were pledged as collateral for borrowings, public deposits and other purposes as required by various statutes and agreements.

During the three months endedMarch 31, 2016 and 2015, we purchased $52.2 million and $196.6 million in securities available-for-sale.

During the three months endedMarch 31, 2016, we sold $334.9 million of various securities, primarily government agency and government-sponsored enterprise ("GSE") pass-through securities and collateralized mortgage obligations, U.S. Treasury securities and GSE debt securities, for a gross realized gain of $8.9 million and a gross realized loss of $0.8 million. During the three months endedMarch 31, 2015, we sold $141.7 million of various securities, primarily corporate debt securities and GSE pass-through securities, for a gross realized gain of $3.7 million and a gross realized loss of $0.4 million.

12

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Unrealized Losses on Securities Available-for-Sale

The following tables present the gross unrealized losses and fair values of securities available-for-sale that were in unrealized loss positions, for which other-than-temporary impairments have not been recognized in earnings, as of the dates indicated:

	March 31, 2016
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	196,388	$	(1,135	)	$	9,422	$	(98	)	$	205,810	$	(1,233	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	33,702		(239		)	—		—			33,702		(239		)
Covered private label collateralized
mortgage obligations	1,239		(98		)	849		(129		)	2,088		(227		)
Other private label collateralized
mortgage obligations	59,407		(838		)	1,029		(45		)	60,436		(883		)
Municipal securities	18,108		(55		)	5,496		(34		)	23,604		(89		)
Corporate debt securities	28,180		(2,089		)	—		—			28,180		(2,089		)
Collateralized loan obligations	106,773		(2,121		)	23,355		(986		)	130,128		(3,107		)
SBA securities	87,150		(207		)	—		—			87,150		(207		)
Asset-backed and other securities	64,013		(1,285		)	15,923		(609		)	79,936		(1,894		)
Total	$	594,960	$	(8,067	)	$	56,074	$	(1,901	)	$	651,034	$	(9,968	)

13

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

	December 31, 2015
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	391,642	$	(3,893	)	$	9,342	$	(266	)	$	400,984	$	(4,159	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	314,284		(2,769		)	14,230		(641		)	328,514		(3,410		)
Covered private label collateralized
mortgage obligations	1,354		(57		)	568		(68		)	1,922		(125		)
Other private label collateralized
mortgage obligations	92,179		(943		)	1,070		(38		)	93,249		(981		)
Municipal securities	126,892		(1,061		)	531		(11		)	127,423		(1,072		)
US Treasury securities	69,380		(816		)	—		—			69,380		(816		)
Corporate debt securities	29,379		(950		)	—		—			29,379		(950		)
Collateralized loan obligations	100,993		(1,131		)	—		—			100,993		(1,131		)
SBA securities	179,942		(830		)	—		—			179,942		(830		)
Asset-backed and other securities	71,619		(1,182		)	16,091		(449		)	87,710		(1,631		)
Total	$	1,377,664	$	(13,632	)	$	41,832	$	(1,473	)	$	1,419,496	$	(15,105	)

We reviewed the securities that were in a loss position at March 31, 2016, and concluded their unrealized losses were not a result of downgraded credit ratings or other indicators of deterioration of the underlying issuers' ability to repay. Such unrealized losses were a result of the level of market interest rates and pricing changes caused by shifting supply and demand dynamics relative to the types of securities. Accordingly, we determined the securities were temporarily impaired and we did not recognize such impairment in the condensed consolidated statements of earnings. Although we occasionally sell securities for portfolio management purposes, we do not foresee having to sell any temporarily impaired securities strictly for liquidity needs and believe that it is more likely than not we would not be required to sell any temporarily impaired securities before recovery of their amortized cost.

Contractual Maturities of Securities Available-for-Sale

The following table presents the contractual maturities of our available-for-sale securities portfolio based on amortized cost and carrying value as of the date indicated:

	March 31, 2016
	Amortized		Fair
Maturity:	Cost		Value
	(In thousands)
Due in one year or less	$	12,821	$	12,628
Due after one year through five years	216,420		219,110
Due after five years through ten years	603,523		619,214
Due after ten years	2,325,787		2,389,634
Total securities available-for-sale	$	3,158,551	$	3,240,586

Mortgage-backed securities have contractual terms to maturity, but require periodic payments to reduce principal. In addition, expected maturities may differ from contractual maturities because obligors and/or issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

14

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Interest Income on Investment Securities

The following table presents the composition of our interest income on investment securities for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Taxable interest	$	11,396	$	12,730	$	7,473
Non-taxable interest	10,726		10,459		3,894
Dividend income	425		459		828
Total interest income on investment securities	$	22,547	$	23,648	$	12,195

Note 5.  Loans and Leases

The Company’s loan and lease portfolio includes originated and purchased loans and leases. Originated and purchased loans and leases for which there was no evidence of credit deterioration at their acquisition date and for which it was probable that all contractually required payments would be collected, are referred to collectively as non-purchased credit impaired loans, or "Non-PCI loans." Purchased loans for which there was, at the acquisition date, evidence of credit deterioration since their origination and for which it was deemed probable that we would be unable to collect all contractually required payments, are referred to as purchased credit impaired loans, or "PCI loans".

Non-PCI loans are carried at the principal amount outstanding, net of deferred fees and costs, and in the case of acquired loans, net of purchase discounts and premiums. Deferred fees and costs and purchase discounts and premiums are recognized as an adjustment to interest income over the contractual life of the loans using the effective interest method or taken into income on an accelerated basis when the related loans are paid off or sold.

PCI loans are accounted for in accordance with ASC Subtopic 310‑30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality". For PCI loans, at the time of acquisition we (i) calculate the contractual amount and timing of undiscounted principal and interest payments (the "undiscounted contractual cash flows") and (ii) estimate the amount and timing of undiscounted expected principal and interest payments (the "undiscounted expected cash flows"). The difference between the undiscounted contractual cash flows and the undiscounted expected cash flows is the nonaccretable difference. The difference between the undiscounted cash flows expected to be collected and the estimated fair value of the acquired loans is the accretable yield. The nonaccretable difference represents an estimate of the loss exposure of principal and interest related to the PCI loan portfolio; such amount is subject to change over time based on the performance of such loans. The carrying value of PCI loans is reduced by payments received, both principal and interest, and increased by the portion of the accretable yield recognized as interest income.

The following table summarizes the composition of our loan and lease portfolio as of the dates indicated:

	March 31, 2016									December 31, 2015
	Non-PCI									Non-PCI
	Loans			PCI						Loans			PCI
	and Leases			Loans			Total			and Leases			Loans			Total
	(In thousands)
Real estate mortgage	$	5,649,282		$	160,122		$	5,809,404		$	5,706,903		$	168,725		$	5,875,628
Real estate construction and land	584,968			2,689			587,657			534,307			2,656			536,963
Commercial	8,021,092			13,513			8,034,605			7,977,067			17,415			7,994,482
Consumer	110,573			283			110,856			120,793			299			121,092
Total gross loans and leases	14,365,915			176,607			14,542,522			14,339,070			189,095			14,528,165
Deferred fees and costs	(58,954		)	(51		)	(59,005		)	(49,861		)	(50		)	(49,911		)
Total loans and leases, net of deferred fees	14,306,961			176,556			14,483,517			14,289,209			189,045			14,478,254
Allowance for loan and lease losses	(120,807		)	(9,554		)	(130,361		)	(105,534		)	(9,577		)	(115,111		)
Total net loans and leases	$	14,186,154		$	167,002		$	14,353,156		$	14,183,675		$	179,468		$	14,363,143

15

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Non‑Purchased Credit Impaired (Non‑PCI) Loans and Leases

The following tables present an aging analysis of our Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	16,655	$	10,638	$	27,293	$	4,525,668	$	4,552,961
Residential	2,187		559		2,746		1,074,590		1,077,336
Total real estate mortgage	18,842		11,197		30,039		5,600,258		5,630,297
Real estate construction and land:
Commercial	—		—		—		305,529		305,529
Residential	—		—		—		269,944		269,944
Total real estate construction and land	—		—		—		575,473		575,473
Commercial:
Cash flow	766		2,013		2,779		3,163,035		3,165,814
Asset-based	4		—		4		2,588,912		2,588,916
Venture capital	9,554		—		9,554		1,493,057		1,502,611
Equipment finance	2,244		2,140		4,384		728,844		733,228
Total commercial	12,568		4,153		16,721		7,973,848		7,990,569
Consumer	30		708		738		109,884		110,622
Total Non-PCI loans and leases	$	31,440	$	16,058	$	47,498	$	14,259,463	$	14,306,961

	December 31, 2015
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	3,947	$	13,075	$	17,022	$	4,534,936	$	4,551,958
Residential	3,391		905		4,296		1,131,809		1,136,105
Total real estate mortgage	7,338		13,980		21,318		5,666,745		5,688,063
Real estate construction and land:
Commercial	—		—		—		343,360		343,360
Residential	—		—		—		184,360		184,360
Total real estate construction and land	—		—		—		527,720		527,720
Commercial:
Cash flow	2,048		1,427		3,475		3,058,793		3,062,268
Asset-based	1		—		1		2,547,532		2,547,533
Venture capital	250		700		950		1,451,477		1,452,427
Equipment finance	359		94		453		889,896		890,349
Total commercial	2,658		2,221		4,879		7,947,698		7,952,577
Consumer	626		1,307		1,933		118,916		120,849
Total Non-PCI loans and leases	$	10,622	$	17,508	$	28,130	$	14,261,079	$	14,289,209

16

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

It is the Company's policy to discontinue accruing interest when, in the opinion of management, there is a reasonable doubt as to the collectability of a loan or lease in the normal course of business or when principal or interest payments are past due 90 days or more unless the loan is both well secured and in the process of collection. Interest income on nonaccrual loans is recognized only to the extent cash is received and the principal balance of the loan is deemed collectable.

The following table presents our nonaccrual and performing Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016						December 31, 2015
	Nonaccrual		Performing		Total		Nonaccrual		Performing		Total
	(In thousands)
Real estate mortgage:
Commercial	$	30,357	$	4,522,604	$	4,552,961	$	52,363	$	4,499,595	$	4,551,958
Residential	5,807		1,071,529		1,077,336		4,914		1,131,191		1,136,105
Total real estate mortgage	36,164		5,594,133		5,630,297		57,277		5,630,786		5,688,063
Real estate construction and land:
Commercial	—		305,529		305,529		—		343,360		343,360
Residential	370		269,574		269,944		372		183,988		184,360
Total real estate construction and land	370		575,103		575,473		372		527,348		527,720
Commercial:
Cash flow	39,665		3,126,149		3,165,814		15,800		3,046,468		3,062,268
Asset-based	2,046		2,586,870		2,588,916		2,505		2,545,028		2,547,533
Venture capital	—		1,502,611		1,502,611		124		1,452,303		1,452,427
Equipment finance	51,247		681,981		733,228		51,410		838,939		890,349
Total commercial	92,958		7,897,611		7,990,569		69,839		7,882,738		7,952,577
Consumer	926		109,696		110,622		1,531		119,318		120,849
Total Non-PCI loans and leases	$	130,418	$	14,176,543	$	14,306,961	$	129,019	$	14,160,190	$	14,289,209

At March 31, 2016, nonaccrual loans and leases totaled $130.4 million and included $13.5 million of loans and leases 90 or more days past due, $13.7 million of loans and leases 30 to 89 days past due, and $103.2 million of current loans and leases that were placed on nonaccrual status based on management’s judgment regarding their collectability. Nonaccrual loans and leases totaled $129.0 million at December 31, 2015, including $16.8 million of the loans and leases 90 or more days past due, $3.6 million of loans and leases 30 to 89 days past due, and $108.6 million of current loans and leases that were placed on nonaccrual status based on management’s judgment regarding their collectability.

17

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following table presents the credit risk rating categories for Non‑PCI loans and leases by portfolio segment and class as of the dates indicated. Nonclassified loans and leases are those with a credit risk rating of either pass or special mention, while classified loans and leases are those with a credit risk rating of either substandard or doubtful.

	March 31, 2016						December 31, 2015
	Classified		Nonclassified		Total		Classified		Nonclassified		Total
	(In thousands)
Real estate mortgage:
Commercial	$	65,532	$	4,487,429	$	4,552,961	$	98,436	$	4,453,522	$	4,551,958
Residential	18,361		1,058,975		1,077,336		12,627		1,123,478		1,136,105
Total real estate mortgage	83,893		5,546,404		5,630,297		111,063		5,577,000		5,688,063
Real estate construction and land:
Commercial	558		304,971		305,529		571		342,789		343,360
Residential	1,382		268,562		269,944		1,395		182,965		184,360
Total real estate construction and land	1,940		573,533		575,473		1,966		525,754		527,720
Commercial:
Cash flow	209,108		2,956,706		3,165,814		183,726		2,878,542		3,062,268
Asset-based	22,236		2,566,680		2,588,916		19,340		2,528,193		2,547,533
Venture capital	14,889		1,487,722		1,502,611		19,105		1,433,322		1,452,427
Equipment finance	51,247		681,981		733,228		54,054		836,295		890,349
Total commercial	297,480		7,693,089		7,990,569		276,225		7,676,352		7,952,577
Consumer	1,385		109,237		110,622		2,500		118,349		120,849
Total Non-PCI loans and leases	$	384,698	$	13,922,263	$	14,306,961	$	391,754	$	13,897,455	$	14,289,209

In addition to our internal risk rating process, our federal and state banking regulators, as an integral part of their examination process, periodically review the Company’s loan and lease risk rating classifications. Our regulators may require the Company to recognize rating downgrades based on their judgments related to information available to them at the time of their examinations. Risk rating downgrades generally result in higher allowances for credit losses.

Non‑PCI nonaccrual loans and leases and performing troubled debt restructured loans are considered impaired for reporting purposes. The following table presents the composition of our impaired loans and leases as of the dates indicated:

	March 31, 2016						December 31, 2015
			Performing		Total				Performing		Total
	Nonaccrual		Restructured		Impaired		Nonaccrual		Restructured		Impaired
	Loans/Leases		Loans		Loans/Leases		Loans/Leases		Loans		Loans/Leases
	(In thousands)
Real estate mortgage	$	36,164	$	55,124	$	91,288	$	57,277	$	27,133	$	84,410
Real estate construction and land	370		7,575		7,945		372		7,631		8,003
Commercial	92,958		3,901		96,859		69,839		5,221		75,060
Consumer	926		229		1,155		1,531		197		1,728
Total	$	130,418	$	66,829	$	197,247	$	129,019	$	40,182	$	169,201

18

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following tables present information regarding our Non‑PCI impaired loans and leases by portfolio segment and class as of and for the dates indicated:

	March 31, 2016						December 31, 2015
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	25,440	$	26,632	$	1,206	$	17,967	$	19,219	$	777
Residential	4,198		4,352		748		2,278		2,435		681
Real estate construction and land:
Residential	743		743		21		747		747		26
Commercial:
Cash flow	37,894		44,786		9,965		14,072		20,312		7,079
Asset-based	3,696		4,250		1,973		3,901		4,423		2,511
Equipment finance	51,247		58,862		15,964		11,193		11,894		8,032
Consumer	359		365		163		365		372		157
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	55,460	$	65,094			$	58,678	$	68,333
Residential	6,190		12,347				5,487		11,406
Real estate construction and land:
Commercial	7,202		7,197				7,256		7,256
Commercial:
Cash flow	2,841		5,188				2,825		5,121
Asset-based	1,181		1,176				2,729		2,726
Venture capital	—		—				124		125
Equipment finance	—		—				40,216		44,194
Consumer	796		1,904				1,363		1,945
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	91,288	$	108,425	$	1,954	$	84,410	$	101,393	$	1,458
Real estate construction and land	7,945		7,940		21		8,003		8,003		26
Commercial	96,859		114,262		27,902		75,060		88,795		17,622
Consumer	1,155		2,269		163		1,728		2,317		157
Total	$	197,247	$	232,896	$	30,040	$	169,201	$	200,508	$	19,263

19

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

	Three Months Ended March 31,
	2016				2015
	Weighted		Interest		Weighted		Interest
	Average		Income		Average		Income
	Balance(1)		Recognized		Balance(1)		Recognized
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	19,471	$	243	$	11,917	$	148
Residential	4,198		24		2,796		7
Real estate construction and land:
Commercial	—		—		403		5
Residential	743		4		759		4
Commercial:
Cash flow	20,823		12		16,028		11
Asset-based	3,696		27		4,693		33
Equipment finance	49,322		—		4,581		—
Consumer	341		3		383		4
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	54,132	$	217	$	36,704	$	74
Residential	5,405		14		5,187		6
Real estate construction and land:
Commercial	7,202		62		7,457		271
Residential	—		—		20		—
Commercial:
Cash flow	2,683		1		3,845		46
Asset-based	1,181		15		7,435		48
Equipment finance	—		—		7,537		—
Consumer	797		—		3,345		—
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	83,206	$	498	$	56,604	$	235
Real estate construction and land	7,945		66		8,639		280
Commercial	77,705		55		44,119		138
Consumer	1,138		3		3,728		4
Total	$	169,994	$	622	$	113,090	$	657

_________________________

(1) For Non-PCI loans and leases reported as impaired at March 31, 2016 and 2015, amounts were calculated based on the period of time such loans and leases were impaired during the reported period.

20

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Troubled debt restructurings are a result of rate reductions, term extensions, fee concessions, and debt forgiveness or a combination thereof. The following tables present new troubled debt restructurings of Non-PCI loans for the periods indicated:

	Three Months Ended March 31,
	2016					2015
		Pre-		Post-			Pre-		Post-
		Modification		Modification			Modification		Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number	Recorded		Recorded		Number	Recorded		Recorded
Troubled Debt Restructurings:	of Loans	Investment		Investment		of Loans	Investment		Investment
	(Dollars in thousands)
Real estate mortgage:
Commercial	4	$	3,140	$	3,140	9	$	5,161	$	5,113
Residential	1	165		165		5	913		773
Real estate construction and land:
Commercial	—	—		—		1	2,610		2,610
Commercial:
Cash flow	4	257		257		4	761		582
Asset-based	2	629		629		6	1,399		1,399
Equipment finance	2	2,660		2,660		4	4,133		4,133
Consumer	1	60		60		1	91		91
Total	14	$	6,911	$	6,911	30	$	15,068	$	14,701

The following tables present troubled debt restructurings that subsequently defaulted for the periods indicated:

	Three Months Ended March 31,
	2016				2015
Troubled Debt Restructurings	Number	Recorded			Number	Recorded
That Subsequently Defaulted:	of Loans	Investment(1)			of Loans	Investment(1)
	(Dollars in thousands)
Real estate mortgage:
Commercial	1	$	230		1	$	1,511
Residential	—	—			1	8
Commercial - Asset-based	—	—			1	385
Total	1	$	230	(2)	3	$	1,904	(3)

_________________________

(1) The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.

(2) Represents the balance at March 31, 2016, and there were no charge-offs.

(3) Represents the balance at March 31, 2015, and is net of charge-offs of $772,000.

21

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Allowance for Loan and Lease Losses

The following tables present a summary of the activity in the allowance for loan and lease losses on Non‑PCI loans and leases by portfolio segment and PCI loans for the periods indicated:

	Three Months Ended March 31, 2016
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	36,654		$	7,137		$	61,082		$	661		$	105,534		$	9,577		$	115,111
Charge-offs	(737		)	—			(4,045		)	(591		)	(5,373		)	(163		)	(5,536		)
Recoveries	999			152			314			16			1,481			—			1,481
Provision (negative provision)	(7,817		)	(413		)	26,606			789			19,165			140			19,305
Balance, end of period	$	29,099		$	6,876		$	83,957		$	875		$	120,807		$	9,554		$	130,361
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,954		$	21		$	27,902		$	163		$	30,040
Collectively evaluated for impairment	$	27,145		$	6,855		$	56,055		$	712		$	90,767
Acquired loans with deteriorated credit quality																$	9,554
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	90,830		$	7,945		$	96,614		$	1,102		$	196,491
Collectively evaluated for impairment	$	5,539,467		$	567,528		$	7,893,955		$	109,520		$	14,110,470
Acquired loans with deteriorated credit quality																$	176,556
Ending balance of
loans and leases	$	5,630,297		$	575,473		$	7,990,569		$	110,622		$	14,306,961		$	176,556		$	14,483,517

22

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

	Three Months Ended March 31, 2015
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	25,097		$	4,248		$	39,858		$	1,253		$	70,456		$	13,999		$	84,455
Charge-offs	(1,453		)	—			(8,395		)	(63		)	(9,911		)	(579		)	(10,490		)
Recoveries	1,295			632			410			194			2,531			11			2,542
Provision (negative provision)	5,972			(2,707		)	13,921			(582		)	16,604			(733		)	15,871
Balance, end of period	$	30,911		$	2,173		$	45,794		$	802		$	79,680		$	12,698		$	92,378
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,500		$	55		$	10,493		$	178		$	12,226
Collectively evaluated for impairment	$	29,411		$	2,118		$	35,301		$	624		$	67,454
Acquired loans with deteriorated credit quality																$	12,698
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	59,733		$	8,639		$	103,208		$	3,729		$	175,309
Collectively evaluated for impairment	$	5,528,697		$	320,070		$	5,903,859		$	89,946		$	11,842,572
Acquired loans with deteriorated credit quality																$	254,285
Ending balance of
loans and leases	$	5,588,430		$	328,709		$	6,007,067		$	93,675		$	12,017,881		$	254,285		$	12,272,166

Note 6.  Foreclosed Assets

The following table summarizes foreclosed assets as of the dates indicated:

	March 31,		December 31,
Property Type:	2016		2015
	(In thousands)
Commercial real estate	$	—	$	487
Construction and land development	13,800		13,801
Single family residence	897		952
Total other real estate owned, net	14,697		15,240
Other foreclosed assets	3,613		6,880
Total foreclosed assets, net	$	18,310	$	22,120

23

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following table presents the changes in foreclosed assets, net of the valuation allowance, for the period indicated:

	Foreclosed
	Assets
	(In thousands)
Balance, December 31, 2015	$	22,120
Foreclosures	129
Provision for losses	—
Reductions related to sales	(3,939		)
Balance, March 31, 2016	$	18,310

Note 7. Borrowings and Subordinated Debentures

Borrowings

The following table summarizes our borrowings as of the dates indicated:

	March 31, 2016				December 31, 2015
	Amount		Rate		Amount		Rate
	(Dollars in thousands)
Non‑recourse debt	$	1,401	6.20	%	$	3,914	5.49	%
FHLB overnight advances	550,000		0.48	%	618,000		0.27	%
Total borrowings	$	551,401			$	621,914

The non‑recourse debt represents the payment stream of certain equipment leases sold to third parties. The debt is secured by the leased equipment and all interest rates are fixed. As of March 31, 2016, this debt had a weighted average remaining maturity of 2.3 years.

The Bank has established secured and unsecured lines of credit under which it may borrow funds from time to time on a term or overnight basis from the FHLB, the Federal Reserve Bank of San Francisco (“FRBSF”), and other financial institutions.

FHLB Secured Lines of Credit. The borrowing arrangement with the FHLB is based on an FHLB program collateralized by a blanket lien on certain qualifying loans that are not pledged to the FRBSF. As of March 31, 2016, the borrowing capacity under the FHLB secured borrowing lines was $2.3 billion. As of March 31, 2016 and December 31, 2015, the balances outstanding were $550.0 million and $618.0 million.

FRBSF Secured Line of Credit. The Bank has a secured line of credit with the FRBSF. As of March 31, 2016, the Bank had secured borrowing capacity of $2.1 billion collateralized by liens covering $3.0 billion of certain qualifying loans. As of March 31, 2016 and December 31, 2015, there were no balances outstanding.

Federal Funds Arrangements with Commercial Banks. As of March 31, 2016, the Bank had uncommitted unsecured lines of credit of $80.0 million with correspondent banks for the purchase of overnight funds, subject to availability of funds. These lines are renewable annually and have no unused commitment fees. As of March 31, 2016 and December 31, 2015, there were no balances outstanding. In March 2016, the Bank became a member of the American Financial Exchange, through which it may either borrow or lend funds on an overnight basis with a group of pre-approved commercial banks. The availability of funds changes daily. There were no balances outstanding as of March 31, 2016.

FHLB Unsecured Line of Credit. During the second quarter of 2015, the Bank obtained a $99.0 million unsecured line of credit with the FHLB for the purchase of overnight funds. As of March 31, 2016 and December 31, 2015, there were no balances outstanding.

24

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Subordinated Debentures

The following table summarizes the terms of each issuance of subordinated debentures outstanding as of the dates indicated:

	March 31, 2016					December 31, 2015					Date	Maturity	Rate Index
Series:	Amount			Rate		Amount			Rate		Issued	Date	(Quarterly Reset)
	(Dollars in thousands)
Trust V	$	10,310		3.74	%	$	10,310		3.63	%	8/15/2003	9/17/2033	3 month LIBOR + 3.10
Trust VI	10,310			3.68	%	10,310			3.39	%	9/3/2003	9/15/2033	3 month LIBOR + 3.05
Trust CII	5,155			3.59	%	5,155			3.35	%	9/17/2003	9/17/2033	3 month LIBOR + 2.95
Trust VII	61,856			3.37	%	61,856			3.07	%	2/5/2004	4/23/2034	3 month LIBOR + 2.75
Trust CIII	20,619			2.32	%	20,619			2.20	%	8/15/2005	9/15/2035	3 month LIBOR + 1.69
Trust FCCI	16,495			2.23	%	16,495			2.11	%	1/25/2007	3/15/2037	3 month LIBOR + 1.60
Trust FCBI	10,310			2.18	%	10,310			2.06	%	9/30/2005	12/15/2035	3 month LIBOR + 1.55
Trust CS 2005-1	82,475			2.58	%	82,475			2.46	%	11/21/2005	12/15/2035	3 month LIBOR + 1.95
Trust CS 2005-2	128,866			2.57	%	128,866			2.27	%	12/14/2005	1/30/2036	3 month LIBOR + 1.95
Trust CS 2006-1	51,545			2.57	%	51,545			2.27	%	2/22/2006	4/30/2036	3 month LIBOR + 1.95
Trust CS 2006-2	51,550			2.57	%	51,550			2.27	%	9/27/2006	10/30/2036	3 month LIBOR + 1.95
Trust CS 2006-3 (1)	29,335			1.88	%	28,007			1.98	%	9/29/2006	10/30/2036	3 month EURIBOR + 2.05
Trust CS 2006-4	16,470			2.57	%	16,470			2.27	%	12/5/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2006-5	6,650			2.57	%	6,650			2.27	%	12/19/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2007-2	39,177			2.57	%	39,177			2.27	%	6/13/2007	7/30/2037	3 month LIBOR + 1.95
Gross subordinated debentures	541,123					539,795
Unamortized discount (2)	(102,400		)			(103,795		)
Net subordinated debentures	$	438,723				$	436,000

___________________

(1) Denomination is in Euros with a value of €25.8 million.

(2) Amount represents the fair value adjustment on subordinated debentures assumed in acquisitions.

Interest payments made by the Company on subordinated debentures are considered dividend payments under the Board of Governors of the Federal Reserve System (“FRB”) regulations. Bank holding companies, such as PacWest, are required to notify the FRB prior to declaring and paying a dividend during any period in which quarterly and/or cumulative twelve‑month net earnings are insufficient to fund the dividend amount, among other requirements.

25

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 8. Commitments and Contingencies

Lending Commitments

The Company is a party to financial instruments with off‑balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and commitments to purchase equipment being acquired for lease to others. Those instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the condensed consolidated balance sheets. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.

The following table presents a summary of the financial instruments described above as of the dates indicated:

	March 31,		December 31,
	2016		2015
	(In thousands)
Loan commitments to extend credit	$	3,812,544	$	3,580,655
Standby letters of credit	217,610		210,292
Commitments to purchase equipment being acquired for lease to others	—		6,663
	$	4,030,154	$	3,797,610

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. We provide standby letters of credit in conjunction with several of our lending arrangements and property lease obligations. Most guarantees expire within one year from the date of issuance. If a borrower defaults on its commitments subject to any letter of credit issued under these arrangements, we would be required to meet the borrower's financial obligation but would seek repayment of that financial obligation from the borrower. In some cases, borrowers have pledged cash and investment securities as collateral with us under these arrangements.

In addition, we invest in low income housing project partnerships, which provide income tax credits, and in small business investment companies that call for capital contributions up to an amount specified in the partnership agreements. As of March 31, 2016 and December 31, 2015, we had commitments to contribute capital to these entities totaling $21.5 million and $19.2 million. We also had commitments to contribute up to an additional $2.9 million and $2.8 million to 19 and 11 private equity funds at March 31, 2016 and December 31, 2015.

Legal Matters

In the ordinary course of our business, the Company is party to various legal actions, which we believe are incidental to the operation of our business. The outcome of such legal actions and the timing of ultimate resolution are inherently difficult to predict. In the opinion of management, based upon currently available information, any resulting liability, in addition to amounts already accrued, and taking into consideration insurance which may be applicable, would not have a material adverse effect on the Company’s financial statements or operations.

Kinde Durkee Investigation

The United States Attorney's Office for the Eastern District of California is conducting an investigation relating to the handling by First California Bank ("FCB") of its banking relationship with Kinde Durkee. Ms. Durkee, who had maintained certain of her accounts with FCB, was convicted in 2012 of embezzling funds from certain California politicians, among others. FCB was acquired by PacWest Bancorp and merged into Pacific Western Bank in May 2013. We understand that the investigation is focused on whether any civil or criminal laws were violated by FCB or its employees. Pacific Western is cooperating with the investigation.

26

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 9.  Fair Value Measurements

ASC Topic 820, “Fair Value Measurement,” defines fair value, establishes a framework for measuring fair value including a three‑level valuation hierarchy, and expands disclosures about fair value measurements. Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date reflecting assumptions that a market participant would use when pricing an asset or liability. The hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:

• Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets.

• Level 2: Observable inputs other than Level 1, including quoted prices for similar assets and liabilities in active markets, quoted prices in less active markets, or other observable inputs that can be corroborated by observable market data, either directly or indirectly, for substantially the full term of the financial instrument. This category generally includes municipal securities, government agency and government‑sponsored enterprise securities, collateralized loan obligations, registered publicly rated private label collateralized mortgage obligations ("CMOs") and asset-backed securitizations.

• Level 3: Inputs to a valuation methodology that are unobservable, supported by little or no market activity, and significant to the fair value measurement. These valuation methodologies generally include pricing models, discounted cash flow models, or a determination of fair value that requires significant management judgment or estimation. This category also includes observable inputs from a pricing service not corroborated by observable market data, and includes our covered private label CMOs, non-rated private placement private label CMOs, non-rated private placement asset-backed securities, and equity warrants.

We use fair value to measure certain assets and liabilities on a recurring basis, primarily securities available‑for‑sale and derivatives. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period and such measurements are therefore considered “nonrecurring” for purposes of disclosing our fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for impaired loans and other real estate owned and also to record impairment on certain assets, such as goodwill, core deposit intangibles, and other long‑lived assets.

The following tables present information on the assets measured and recorded at fair value on a recurring basis as of the dates indicated:

	Fair Value Measurements as of
	March 31, 2016
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	653,865	$	—	$	653,865	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	443,732		—		443,732		—
Covered private label CMOs	27,863		—		—		27,863
Other private label CMOs	107,382		—		60,030		47,352
Municipal securities	1,517,592		—		1,517,592		—
Corporate debt securities	45,483		—		45,483		—
Collateralized loan obligations	139,572		—		139,572		—
SBA securities	202,674		—		202,674		—
Asset-backed and other securities	102,423		2,551		83,156		16,716
Total securities available-for-sale	3,240,586		2,551		3,146,104		91,931
Derivative assets	6,654		—		6,654		—
Equity warrants	5,033		—		—		5,033
Total recurring assets	$	3,252,273	$	2,551	$	3,152,758	$	96,964
Derivative liabilities	$	2,079	$	—	$	2,079	$	—

27

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

	Fair Value Measurements as of
	December 31, 2015
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	767,797	$	—	$	767,797	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	486,239		—		486,239		—
Covered private label CMOs	29,782		—		—		29,782
Other private label CMOs	115,014		—		63,555		51,459
Municipal securities	1,547,331		—		1,547,331		—
US Treasury securities	69,380		69,380		—		—
Corporate debt securities	48,424		—		48,424		—
Collateralized loan obligations	132,189		—		132,189		—
SBA securities	211,157		—		211,157		—
Government‑sponsored enterprise debt securities	36,913		—		36,913		—
Asset-backed and other securities	115,211		2,562		94,449		18,200
Total securities available-for-sale	3,559,437		71,942		3,388,054		99,441
Derivative assets	11,919		—		11,919		—
Equity warrants	4,914		—		—		4,914
Total recurring assets	$	3,576,270	$	71,942	$	3,399,973	$	104,355
Derivative liabilities	$	1,397	$	—	$	1,397	$	—

There were no transfers of assets either between Level 1 and Level 2 nor in or out of Level 3 of the fair value hierarchy for assets measured on a recurring basis during the three months endedMarch 31, 2016.

The following table presents information about quantitative inputs and assumptions used to determine the fair values provided by our third party pricing service for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis as of March 31, 2016:

	Private Label CMOs		Asset-Backed Securities
		Weighted		Weighted
	Range	Average	Range	Average
Unobservable Inputs:	of Inputs	Input	of Inputs	Input
Voluntary annual prepayment speeds	1.5% - 22.4%	10.5%	5% - 40%	14.2%
Annual default rates	0.3% - 13.7%	2.4%	1% - 8%	3.7%
Loss severity rates	0% - 96.9%	32.6%	10% - 91%	51.8%
Discount rates	0.8% - 57.3%	3.8%	1.8% - 5.2%	3.4%

The following table presents information about quantitative inputs and assumptions used in the modified Black-Scholes option pricing model to determine the fair value for our Level 3 equity warrants measured at fair value on a recurring basis as of March 31, 2016:

	Equity Warrants
	Weighted Average
Unobservable Inputs:	Range of Inputs
Volatility	18.7% - 161.5%
Risk-free interest rate	0.7% - 1.0%
Remaining life assumption (in years)	2.0 - 3.7

28

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following table summarizes activity for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis for the period indicated:

	Private			Asset-Backed
	Label CMOs			Securities
	(In thousands)
Balance, December 31, 2015	$	81,241		$	18,200
Total included in earnings	353			15
Total included in other comprehensive income	(1,251		)	(12		)
Net settlements	(5,128		)	(1,487		)
Balance, March 31, 2016	$	75,215		$	16,716

The following table summarizes activity for our Level 3 equity warrants measured at fair value on a recurring basis for the period indicated:

	Equity
	Warrants
	(In thousands)
Balance, December 31, 2015	$	4,914
Total included in earnings	(274		)
Sales	(42		)
Issuances	435
Balance, March 31, 2016	$	5,033

The following tables present assets measured at fair value on a non‑recurring basis as of the dates indicated:

	Fair Value Measurement as of
	March 31, 2016
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	95,310	$	—	$	2,121	$	93,189

	Fair Value Measurement as of
	December 31, 2015
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	40,817	$	—	$	9,367	$	31,450
Other real estate owned	14,101		—		14,101		—
Investments carried at cost	107		—		—		107
Total non-recurring	$	55,025	$	—	$	23,468	$	31,557

The following table presents losses recognized on assets measured on a nonrecurring basis for the periods indicated:

	Three Months Ended
	March 31,
Losses on Assets Measured on a Non‑Recurring Basis:	2016			2015
	(In thousands)
Impaired Non‑PCI loans	$	(12,909	)	$	(9,192	)
Other real estate owned	—			(124		)
Total loss	$	(12,909	)	$	(9,316	)

29

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a nonrecurring basis as of March 31, 2016:

			Valuation	Unobservable		Weighted
Asset:	Fair Value		Technique	Inputs	Range	Average
	(In thousands)
Impaired Non-PCI loans	$	52,516	Discounted cash flows	Discount rates	0% - 9.04%	6.33%
Impaired Non-PCI loans	38,910		Third party appraisals	Discounts	10.00% - 28.44%	25.25%
Impaired Non-PCI loans	1,763		Third party appraisals	No discounts
Total non-recurring Level 3	$	93,189

ASC Topic 825, “Financial Instruments,” requires disclosure of the estimated fair value of certain financial instruments and the methods and significant assumptions used to estimate such fair values. Additionally, certain financial instruments and all nonfinancial instruments are excluded from the applicable disclosure requirements.

The following tables present a summary of the carrying values and estimated fair values of certain financial instruments as of the dates indicated:

	March 31, 2016
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,977	$	161,977	$	161,977	$	—	$	—
Interest‑earning deposits in financial institutions	357,541		357,541		357,541		—		—
Securities available‑for‑sale	3,240,586		3,240,586		2,551		3,146,104		91,931
Investment in FHLB stock	17,250		17,250		—		17,250		—
Investments carried at cost	1,990		4,950		—		—		4,950
Loans and leases, net	14,353,156		14,337,455		—		2,121		14,335,334
Derivative assets	6,654		6,654		—		6,654		—
Equity warrants	5,033		5,033		—		—		5,033
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,956,102		11,956,102		—		11,956,102		—
Time deposits	3,485,273		3,484,782		—		3,484,782		—
Borrowings	551,401		551,401		550,000		1,401		—
Subordinated debentures	438,723		421,669		—		421,669		—
Derivative liabilities	2,079		2,079		—		2,079		—

30

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

	December 31, 2015
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,020	$	161,020	$	161,020	$	—	$	—
Interest‑earning deposits in financial institutions	235,466		235,466		235,466		—		—
Securities available‑for‑sale	3,559,437		3,559,437		71,942		3,388,054		99,441
Investment in FHLB stock	19,710		19,710		—		19,710		—
Investments carried at cost	2,267		6,789		—		—		6,789
Loans and leases, net	14,363,143		14,393,558		—		9,367		14,384,191
Derivative assets	11,919		11,919		—		11,919		—
Equity warrants	4,914		4,914		—		—		4,914
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,513,826		11,513,826		—		11,513,826		—
Time deposits	4,152,356		4,152,920		—		4,152,920		—
Borrowings	621,914		622,438		618,000		4,438		—
Subordinated debentures	436,000		419,762		—		419,762		—
Derivative liabilities	1,397		1,397		—		1,397		—

For information regarding the valuation methodologies used to measure our assets recorded at fair value (under ASC Topic 820), and for estimating fair value for financial instruments not recorded at fair value (under ASC Topic 825), see Note 1 - Nature of Operations and Summary of Significant Accounting Policies and Note 13 - Fair ValueMeasurements to the Consolidated Financial Statements of the Company's 2015 Annual Report on Form 10-K.

Limitations

Fair value estimates are made at a specific point in time and are based on relevant market information and information about the financial instrument. These estimates do not reflect income taxes or any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a portion of the Company’s financial instruments, fair value estimates are based on what management believes to be reasonable judgments regarding expected future cash flows, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimated fair values are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Since the fair values have been estimated as of March 31, 2016, the amounts that will actually be realized or paid at settlement or maturity of the instruments could be significantly different.

31

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 10. Earnings Per Share

The following table presents the computations of basic and diluted net earnings per share for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Dollars in thousands, except per share data)
Basic Earnings Per Share:
Net earnings	$	90,456		$	71,841		$	73,079
Less: Earnings allocated to unvested restricted stock (1)	(1,067		)	(690		)	(819		)
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares and unvested restricted
stock outstanding	121,598			120,385			103,035
Less: Weighted-average unvested restricted stock outstanding	(1,392		)	(1,133		)	(1,122		)
Weighted-average basic shares outstanding	120,206			119,252			101,913
Basic earnings per share	$	0.74		$	0.60		$	0.71
Diluted Earnings Per Share:
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares outstanding	120,206			119,252			101,913
Diluted earnings per share	$	0.74		$	0.60		$	0.71

________________________

(1) Represents cash dividends paid to holders of unvested restricted stock, net of estimated forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.

Note 11. Stock-Based Compensation

The Company’s 2003 Stock Incentive Plan, or the 2003 Plan, permits stock-based compensation awards to officers, directors, key employees and consultants. As of March 31, 2016, the 2003 Plan authorized grants of stock‑based compensation instruments to purchase or issue up to 19,686,565 shares of Company common stock, subject to adjustments provided by the 2003 Plan. As of March 31, 2016, there were 12,616,206 shares available for grant under the 2003 Plan.

Restricted stock amortization totaled $5.0 million, $3.8 million, and $3.1 million for the three months endedMarch 31, 2016, December 31, 2015 and March 31, 2015. Such amounts are included in "Compensation expense" on the condensed consolidated statements of earnings. The amount of unrecognized compensation expense related to unvested time-based restricted stock awards ("TRSAs") and performance-based restricted stock units ("PRSUs") as of March 31, 2016 totaled $51.8 million.

Time-Based Restricted Stock Awards

At March 31, 2016, there were 1,562,557 shares of unvested TRSAs outstanding. The TRSAs generally vest over a service period of three or four years from the date of the grant or immediately upon the death of an employee. Compensation expense related to TRSAs is based on the fair value of the underlying stock on the award date and is recognized over the vesting period using the straight‑line method.

32

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

Performance-Based Restricted Stock Units

At March 31, 2016, there were 153,715 shares of unvested PRSUs outstanding. The PRSUs will vest only if performance goals with respect to certain financial metrics are met over a three-year performance period. Compensation expense related to PRSUs is based on the fair value of the underlying stock on the award date and is amortized over the vesting period using the straight-line method unless it is determined that: (1) attainment of the financial metrics is less than probable, in which case a portion of the amortization is suspended, or (2) attainment of the financial metrics is improbable, in which case a portion of the previously recognized amortization is reversed and also suspended.

Note 12.  Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue Recognition (Topic 606): Revenue from Contracts with Customers." ASU 2014-09 requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting. In August 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which deferred the effective date of ASU 2014-09 to annual and interim periods beginning after December 15, 2017. Early application is not permitted.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which will significantly change the income statement impact of equity investments and the recognition of changes in fair value of financial liabilities when the fair value option is elected. For equity investments with readily determinable fair values, entities must measure these investments at fair value and recognized changes in fair value in net income. For equity investments without readily determinable fair values, entities have the option to either measure these investments at fair value or at cost adjusted for changes in observable prices minus impairment. Changes in measurement under either alternative must be recognized in net income. ASU 2016-01 will be effective for annual and interim periods beginning after December 15, 2017. The Company is evaluating the effect that ASU 2016-01 will have on its financial statements and related disclosures.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," which, among other things, requires lessees to recognize most leases on-balance sheet, which will result in an increase in their reported assets and liabilities. Lessor accounting remains substantially similar to current U.S. GAAP. ASU 2016-02 supersedes Topic 840, Leases. ASU 2016-02 is effective for annual and interim periods in fiscal years beginning after December 15, 2018. ASU 2016-02 mandates a modified retrospective transition method for all entities. The Company is evaluating the effect that ASU 2016-02 will have on its financial statements and related disclosures.

In March 2016, the FASB issued ASU 2016-07, Simplifying the Transition to the Equity Method of Accounting, which eliminates the requirement for an investor to retroactively apply the equity method when its increase in ownership interest (or degree of influence) in an investee triggers equity method accounting. ASU 2016-07 is effective for interim and annual periods in fiscal years beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. Earlier application is permitted. ASU 2016-07 does not require additional disclosures at transition. The Company does not expect the effect of ASU 2016-06 to have a material impact on its financial statements and related disclosures.

33

PACWEST BANCORP AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which is intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. ASU 2016-09 changes aspects of the accounting for share-based payment award transactions, including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures; (4) minimum statutory tax withholding requirements; and (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax-withholding purposes. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, and interim periods within those years. Early adoption is permitted in any interim or annual period provided that the entire ASU is adopted. If an entity early adopts the amendments after the first interim period, the adoption date is as of the beginning of the year for the issues adopted by the cumulative-effect and prospective methods and any adjustments to previously reported interim periods of that fiscal year should be included in the year-to-date results. If those previously reported interim results appear in any future filings, they are reported on the revised basis. The Company does not expect the effect of ASU 2016-09 to have a material impact on its financial statements and related disclosures in the period of adoption. In subsequent periods, we expect the requirements of ASU 2016-09 to result in fluctuations in our effective tax rate from period to period based upon the timing of share-based award vestings.

Note 13. Subsequent Events

Common Stock Dividends

On May 2, 2016, the Company announced that the Board of Directors had declared a quarterly cash dividend of $0.50 per common share. The cash dividend is payable on May 31, 2016 to stockholders of record at the close of business on May 16, 2016.

We have evaluated events that have occurred subsequent to March 31, 2016 and have concluded there are no other subsequent events that would require recognition in the accompanying consolidated financial statements.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-Looking Information

This Form 10-Q contains certain “forward-looking statements” about the Company and its subsidiaries within the meaning of the Private Securities Litigation Reform Act of 1995, including certain plans, strategies, goals, and projections and including statements about our expectations regarding our acquisition of Square 1, intentions to expand the Bank’s lending business; net interest income, net interest margin, allowance for loan and lease losses, deposit growth, loan and lease portfolio growth and production, liquidity, profitability, goodwill, interest rate risk management, realization of deferred tax assets, and effective tax rates. All statements contained in this Form 10-Q that are not clearly historical in nature are forward-looking, and the words “anticipate,” “assume,” “intend,” “believe,” “forecast,” “expect,” “estimate,” “plan,” “continue,” “will,” “should,” “look forward” and similar expressions are generally intended to identify forward-looking statements. All forward-looking statements (including statements regarding future financial and operating results and future transactions and their results) involve risks, uncertainties and contingencies, many of which are beyond our control, which may cause actual results, performance, or achievements to differ materially from anticipated results, performance or achievements. Actual results could differ materially from those contained or implied by such forward-looking statements for a variety of factors, including without limitation:

• the Company’s ability to complete future acquisitions and to successfully integrate such acquired entities or achieve expected benefits, synergies and/or operating efficiencies within expected time frames;

• business disruption following the Square 1 acquisition;

• changes in the Company’s stock price;

• the reaction to the Square 1 acquisition of the companies’ customers, employees and counterparties;

• change in interest rates and lending spreads;

• unfavorable changes in asset mix;

• compression of the net interest margin due to changes in our loan products or spreads on newly originated loans and leases;

• a change in the interest rate environment reduces net interest margins;

• credit quality deterioration or pronounced and sustained reduction in market values or other economic factors which adversely affect our borrowers’ ability to repay loans and leases;

• changes in economic or competitive market conditions could negatively impact investment or lending opportunities or product pricing and services;

• reduced demand for our services due to strategic or regulatory reasons;

• our inability to grow deposits and access wholesale funding sources;

• legislative or regulatory requirements or changes could negatively impact our business, including an increase to capital requirements;

• loan repayments higher than expected;

• higher than anticipated delinquencies, charge-offs, and loan and lease losses;

• the impact of asset/liability repricing risk and liquidity risk on net interest margin and the value of investments;

• increased costs to manage and sell foreclosed assets;

• higher than anticipated increases in operating expenses;

• lower than expected dividends paid from the Bank to the holding company;

• a deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a noncash charge to net income;

• the success and timing of other business strategies and asset sales;

• changes in the relationship between yields on investment securities and loans repaid and yields on assets reinvested;

• changes in the forward yield curve;

• changes in tax laws or regulations affecting our business;

• our inability to generate sufficient earnings;

• tax planning or disallowance of tax benefits by tax authorities; and

• other risk factors described in our audited consolidated financial statements, and other risk factors described in this Form 10-Q and documents filed by PacWest with the U.S. Securities and Exchange Commission (“SEC”).

35

All forward-looking statements included in this Form 10-Q are based on information available at the time the statement is made. We are under no obligation to (and expressly disclaim any such obligation to) update or alter our forward-looking statements, whether as a result of new information, future events or otherwise except as required by law.

Overview

PacWest Bancorp is a bank holding company registered under the Bank Holding Company Act of 1956, as amended. Our principal business is to serve as the holding company for our Los Angeles‑based wholly-owned banking subsidiary, Pacific Western Bank, which we refer to as “Pacific Western” or the “Bank.” References to “we,” “us,” or the “Company” refer to PacWest Bancorp together with its subsidiaries on a consolidated basis. When we refer to “PacWest” or to the “holding company,” we are referring to PacWest Bancorp, the parent company, on a stand-alone basis. References to “Pacific Western Bank” include the Bank’s wholly-owned subsidiaries.

We are focused on relationship-based business banking to small, middle-market and venture-backed businesses nationwide. The Bank offers a broad range of deposit products and services through 76 full-service branches located primarily in southern and central California, three branches in northern California, and one branch in Durham, North Carolina. The Bank provides commercial banking services, including real estate, construction, and commercial loans, and comprehensive deposit and treasury management services to small and middle-market businesses. Pacific Western offers additional products and services through its CapitalSource and Square 1 Bank divisions. CapitalSource provides cash flow, asset-based, equipment and real estate loans and treasury management services to established middle-market businesses on a national basis. Square 1 Bank offers a comprehensive suite of financial services focused on entrepreneurial businesses and their venture capital and private equity investors, with offices located in key innovation hubs across the United States. Square 1 Asset Management, Inc., a wholly-owned subsidiary of the Bank and a SEC-registered investment adviser, provides investment advisory and asset management services to select clients.

In managing the top line of our business, we focus on loan growth, loan yield, deposit cost, and net interest margin. Net interest income, on a year-to-date basis in 2016, accounted for 87.6% of our net revenues (net interest income plus noninterest income).

At March 31, 2016, we had total assets of $21.0 billion, including loans and leases, net of deferred fees, of $14.5 billion compared to $21.3 billion of total assets and $14.5 billion of loans and leases, net of deferred fees, at December 31, 2015. Total assets decreased $257.5 million during the three months endedMarch 31, 2016 due primarily to a decrease of $318.9 million in securities available-for-sale resulting from sales of $335 million due to ongoing portfolio management activities.

At March 31, 2016, we had total liabilities of $16.6 billion, including total deposits of $15.4 billion and borrowings of $551.4 million compared to $16.9 billion of total liabilities, including $15.7 billion of total deposits and $621.9 million of borrowings at December 31, 2015. Total liabilities decreased $316.4 million during the three months endedMarch 31, 2016 due mainly to the $224.8 million decrease in deposits and the $70.5 million decrease in borrowings. At March 31, 2016, core deposits totaled $11.0 billion or 71% of total deposits and time deposits totaled $3.5 billion or 23% of total deposits.

On March 31, 2016, we sold our Pacific Western Equipment Finance leasing unit in Midvale, Utah, including approximately $139 million of outstanding lease balances.

Square 1 Financial, Inc. Acquisition

PacWest acquired Square 1 Financial, Inc. (“Square 1”) on October 6, 2015. As part of the acquisition, Square 1 Bank, a wholly-owned subsidiary of Square 1, merged with and into Pacific Western. At closing, we formed the Square 1 Bank Division of the Bank which focuses on providing a comprehensive suite of financial services to entrepreneurial businesses and their venture capital and private equity investors nationwide. We completed this acquisition to increase our core deposits, expand our lending products across the nation, and increase our presence in the technology and life-sciences credit markets. We recorded the assets and liabilities, both tangible and intangible, at their estimated fair values as of the acquisition date and increased total assets by approximately $4.6 billion. The application of the acquisition method of accounting resulted in goodwill of $447.9 million. For further information, see Note 2. Acquisitions, in the Notes to Condensed Consolidated Financial Statements (Unaudited) contained in “Item 1. Condensed Consolidated Financial Statements (Unaudited).”

36

Key Performance Indicators

Among other factors, our operating results depend generally on the following key performance indicators:

The Level of Net Interest Income

Net interest income is the excess of interest earned on our interest‑earning assets over the interest paid on our interest‑bearing liabilities. Net interest margin is net interest income (annualized) expressed as a percentage of average interest‑earning assets. Tax equivalent ("TE") net interest income is net interest income increased by an adjustment for tax-exempt income on certain municipal securities for which we have utilized a 35% federal statutory tax rate. Tax equivalent net interest margin is calculated as tax equivalent net interest income divided by average interest-earning assets. A sustained low interest rate environment combined with low loan growth and high levels of marketplace liquidity may reduce both our net interest income and net interest margin going forward.

Our primary interest‑earning assets are loans and investment securities, and our primary interest‑bearing liabilities are deposits. Contributing to our high net interest margin is our high yield on loans and leases and competitive cost of deposits. While our deposit balances will fluctuate depending on deposit holders’ perceptions of alternative yields available in the market, we seek to minimize the impact of these variances by attracting a high percentage of noninterest‑bearing deposits. As a result of the CapitalSource Inc. merger, $5.3 billion of time deposits were assumed. Our goal is to continue replacing these higher-costing time deposits with core deposits. The acquisition of Square 1 accelerated this shift in deposit mix as nearly all of the $3.8 billion of acquired deposits were core deposits. The Square 1 acquisition increased our on-balance sheet liquidity and enables us to maintain adequate liquidity as we manage down the level of higher-cost time deposits.

Loan and Lease Growth

We actively seek new lending opportunities under an array of commercial real estate loans and commercial and industrial ("C&I") lending products. Our targeted collateral for our real estate loan offerings includes healthcare properties, office properties, industrial properties, multifamily properties, hospitality properties, and retail properties. Our C&I loan products include equipment-secured loans and leases, asset-secured loans, loans to finance companies, and cash flow loans (which are loans secured by borrower future cash flows and borrower enterprise value) and venture capital-backed loans to entrepreneurial companies to support early-stage operations. Our loan origination process emphasizes credit quality. We foster lender relationships with borrowers that have proven loan repayment performance. Our commitment sizes vary by loan product and can range up to $100 million for certain asset-based lending arrangements and multi-property real estate loans. We price loans to preserve our interest spread and maintain our net interest margin. Achieving net loan growth is subject to many factors, including maintaining strict credit standards, competition from other lenders, and successful borrowers that opt to prepay loans.

The Magnitude of Credit Losses

We emphasize credit quality in originating and monitoring our loans and leases, and we measure our success by the levels of our classified and nonperforming assets and net charge‑offs. We maintain an allowance for credit losses on loans and leases, which is the sum of our allowance for loan and lease losses and our reserve for unfunded loan commitments. Provisions for credit losses are charged to operations as and when needed for both on and off‑balance sheet credit exposure. Loans and leases which are deemed uncollectable are charged off and deducted from the allowance for loan and lease losses. Recoveries on loans and leases previously charged off are added to the allowance for loan and lease losses. The provision for credit losses on the loan and lease portfolio is based on our allowance methodology which considers various credit performance measures such as historical and current net charge‑offs, the levels and trends of nonaccrual and classified loans and leases, the migration of loans and leases into various risk classifications, and the overall level of outstanding loans and leases. For originated and acquired non‑impaired loans, a provision for credit losses may be recorded to reflect credit deterioration after the origination date or after the acquisition date, respectively. For purchased credit impaired ("PCI") loans, a provision for credit losses may be recorded to reflect decreases in expected cash flows on such loans compared to those previously estimated.

37

We regularly review our loans and leases to determine whether there has been any deterioration in credit quality stemming from borrower operations or changes in collateral value or other factors which may affect collectability of our loans and leases. Changes in economic conditions, such as the rate of economic growth, the rate of inflation, the unemployment rate, increases in the general level of interest rates, declines in real estate values, changes in commodity prices (such as crude oil), and adverse conditions in borrowers’ businesses, could negatively impact our borrowers and cause us to adversely classify loans and leases. An increase in classified loans and leases generally results in increased provisions for credit losses and an increased allowance for credit losses. Any deterioration in the commercial real estate market may lead to increased provisions for credit losses because of our concentration in commercial real estate loans.

The Level of Noninterest Expense

Our noninterest expense includes fixed and controllable overhead, the major components of which are compensation, occupancy, data processing, and other professional services. It also includes costs that tend to vary based on the volume of activity, such as loan and lease production and the number and complexity of foreclosed assets. We measure success in controlling both fixed and variable costs through monitoring of the efficiency ratio. We calculate the efficiency ratio by dividing noninterest expense (less intangible asset amortization, net foreclosed assets expense (income), and acquisition, integration and reorganization costs) by net revenues (the sum of tax equivalent net interest income plus noninterest income, less gain (loss) on sale of securities and gains on asset sales).

The following table presents the calculation of our efficiency ratio for the periods indicated:

		Three Months Ended
		March 31,			December 31,			March 31,
Efficiency Ratio:		2016			2015			2015
		(Dollars in thousands)
Noninterest expense		$	110,688		$	122,264		$	84,360
Less:	Intangible asset amortization	4,746			4,910			1,501
	Foreclosed assets expense (income), net	(561		)	(3,185		)	336
	Acquisition, integration, and reorganization costs	200			17,600			2,000
Noninterest expense used for efficiency ratio		$	106,303		$	102,939		$	80,523
Net interest income (tax equivalent)		$	249,610		$	233,959		$	200,860
Noninterest income		34,539			28,058			20,871
Net revenues		284,149			262,017			221,731
Less:	Gain on sale of securities	8,110			—			3,275
Net revenues used for efficiency ratio		$	276,039		$	262,017		$	218,456
Efficiency ratio		38.5		%	39.3		%	36.9		%

Critical Accounting Policies

The Company’s accounting policies are fundamental to understanding management’s discussion and analysis of results of operations and financial condition. The Company has identified several policies as being critical because they require management to make particularly difficult, subjective and/or complex judgments about matters that are inherently uncertain and because of the likelihood that materially different amounts would be reported under different conditions or using different assumptions. These policies relate to the allowance for credit losses, the fair value estimates of assets acquired and liabilities assumed in acquisitions, the carrying values of intangible assets, and the realization of deferred income tax assets. For further information, refer to our Annual Report on Form 10‑K for the year ended December 31, 2015.

Non-GAAP Measurements

The Company uses certain non‑GAAP financial measures to provide meaningful supplemental information regarding the Company’s operational performance and to enhance investors’ overall understanding of such financial performance. The non-GAAP measures used in this Form 10-Q include the following:

• Return on average tangible equity, tangible common equity amounts and ratios, and tangible book value per share: Given that the use of these measures is prevalent among banking regulators, investors and analysts, we disclose them in addition to return on average assets, return on average equity, equity-to-assets ratio, and book value per share, respectively.

• Adjusted allowance for credit losses to loans and leases: As the allowance for credit losses takes into consideration credit deterioration on acquired loans and leases only after the purchase date and an estimate of credit losses is included in their initial fair values, we disclose two adjusted allowance for credit losses to loans and leases ratios in addition to the allowance for credit losses to loans and leases. The first adjusted allowance for credit losses to loans and leases excludes the allowance related to acquired loans and leases from the numerator and the acquired loans and leases from the denominator. The second ratio excludes the remaining unamortized purchase discount from both the numerator and the denominator.

• Core NIM and core loan yield: The NIM and loan and lease yield are impacted by volatility in accelerated accretion of acquisition discounts due to the prepayment of acquired loans and leases. We disclose the core NIM and loan and lease yield to provide an indication of what these measures would be without the effects of accelerated accretion as this indicates a "normalized" measure and a more accurate indicator of future performance. See “- Results of Operations - Net Interest Income” for a reconciliation of these non-GAAP measurements to the GAAP measurements for the periods presented.

The methodology for determining return on average tangible equity, tangible common equity amounts and ratios, tangible book value per share and adjusted allowance for credit losses to loans and leases may differ among companies.

The following tables present performance amounts and ratios in accordance with GAAP and a reconciliation of the non‑GAAP financial measurements to the GAAP financial measurements as of and for the periods indicated:

		Three Months Ended
		March 31,			December 31,			March 31,
Return on Average Tangible Equity		2016			2015			2015
		(In thousands)
Net earnings		$	90,456		$	71,841		$	73,079
Average stockholders' equity		$	4,438,602		$	4,346,162		$	3,533,343
Less:	Average intangible assets	2,227,520			2,177,631			1,737,441
Average tangible common equity		$	2,211,082		$	2,168,531		$	1,795,902
Return on average equity (3)		8.20		%	6.56		%	8.39		%
Return on average tangible equity (4)		16.45		%	13.14		%	16.50		%

_____________________________________

(1) Annualized net earnings divided by average stockholders' equity.

(2) Annualized net earnings divided by average tangible common equity.

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	March 31,			December 31,
Tangible Common Equity:	2016			2015
	(Dollars in thousands)
PacWest Bancorp Consolidated:
Stockholders’ equity	$	4,456,592		$	4,397,691
Less: Intangible assets	2,223,928			2,229,511
Tangible common equity	$	2,232,664		$	2,168,180
Total assets	$	21,031,009		$	21,288,490
Less: Intangible assets	2,223,928			2,229,511
Tangible assets	$	18,807,081		$	19,058,979
Equity to assets ratio	21.19		%	20.66		%
Tangible common equity ratio(1)	11.87		%	11.38		%
Book value per share	$	36.60		$	36.22
Tangible book value per share	$	18.33		$	17.86
Shares outstanding	121,771,252			121,413,727
Pacific Western Bank:
Stockholder's equity	$	4,331,841		$	4,276,279
Less: Intangible assets	2,223,928			2,229,511
Tangible common equity	$	2,107,913		$	2,046,768
Total assets	$	20,928,105		$	21,180,689
Less: Intangible assets	2,223,928			2,229,511
Tangible assets	$	18,704,177		$	18,951,178
Equity to assets ratio	20.70		%	20.19		%
Tangible common equity ratio(1)	11.27		%	10.80		%

_______________________________________

(1) Tangible common equity divided by tangible assets.

	March 31,			December 31,
Adjusted Allowance for Credit Losses to Loans and Leases (Excludes PCI Loans):	2016			2015
	(Dollars in thousands)
Adjustment for allowance on acquired loans and leases:
Allowance for credit losses	$	138,376		$	122,268
Less: Allowance related to acquired Non-PCI loans and leases	(34,231		)	(19,127		)
Adjusted allowance for credit losses	$	104,145		$	103,141
Gross Non-PCI loans and leases	$	14,365,915		$	14,339,070
Less: Carrying value of acquired Non‑PCI loans and leases	(5,468,875		)	(6,030,921		)
Adjusted loans and leases	$	8,897,040		$	8,308,149
Allowance for credit losses to loans and leases	0.96		%	0.85		%
Adjusted allowance for credit losses to adjusted loans and leases	1.17		%	1.24		%
Adjustment for unamortized purchase discount on acquired loans and leases:
Allowance for credit losses	$	138,376		$	122,268
Add: Unamortized purchase discount related to acquired Non-PCI loans and leases	78,761			92,192
Adjusted allowance for credit losses	$	217,137		$	214,460
Gross Non-PCI loans and leases	$	14,365,915		$	14,339,070
Add: Unamortized purchase discount related to acquired Non-PCI loans and leases	78,761			92,192
Adjusted loans and leases	$	14,444,676		$	14,431,262
Allowance for credit losses and unamortized purchase discount to adjusted loans and leases	1.50		%	1.49		%

39

Results of Operations

Acquisitions Impact Earnings Performance

The comparability of financial information is affected by our acquisitions. We completed the Square 1 Financial, Inc. acquisition on October 6, 2015, adding assets of $4.6 billion. This transaction has been accounted for using the acquisition method of accounting and, accordingly, the related operating results have been included in the consolidated financial statements from the acquisition date.

Earnings Performance

The following table presents profitability metrics for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
Profitability Measures:
Diluted earnings per share	$	0.74		$	0.60		$	0.71
Annualized return on:
Average assets	1.72		%	1.37		%	1.82		%
Average tangible equity (1)(2)	16.45		%	13.14		%	16.50		%
Net interest margin (tax equivalent)	5.53		%	5.22		%	5.95		%
Core net interest margin (tax equivalent) (2)(3)	5.10		%	5.10		%	5.44		%
Efficiency ratio	38.5		%	39.3		%	36.9		%

_____________________________

(1) Calculation reduces average equity by average intangible assets.

(2) See "Non-GAAP Measurements" for the calculation of this item.

(3) Excludes accelerated accretion of acquisition discounts resulting from early payoffs of acquired loans.

First Quarter of 2016 Compared to Fourth Quarter of 2015

Net earnings were $90.5 million, or $0.74 per diluted share for the first quarter of 2016, compared to $71.8 million, or $0.60 per diluted share, for the fourth quarter of 2015. The quarter‑over‑quarter increase of $18.6 million in net earnings was due to higher net interest income of $15.4 million, higher noninterest income of $6.5 million, and lower noninterest expense of $11.6 million, and a higher provision for credit losses of $6.4 million. The increase in net interest income was attributable to higher accretion on acquired loans and a higher average loan and lease balance, offset by a lower average investment securities balance. The increase in noninterest income was due mainly to a higher gain on sales of securities of $8.1 million and lower FDIC loss sharing expense of $1.9 million, offset by lower dividends and gains on equity investments of $4.6 million. The decrease in noninterest expense was due mainly to lower acquisition, integration and reorganization costs of $17.4 million offset by lower foreclosed assets income of $2.6 million and higher compensation expense of $2.1 million.

First Quarter of 2016 Compared to First Quarter of 2015

Net earnings for the first quarter of 2016 were $90.5 million, or $0.74 per diluted share, compared to net earnings for the first quarter of 2015 of $73.1 million, or $0.71 per diluted share. The $17.4 million increase in net earnings was due to higher net interest income of $45.5 million and higher noninterest income of $13.7 million, offset by higher noninterest expense of $26.3 million. The increase in net interest income was attributable to higher average interest-earning asset balances and lower interest expense. The increase in noninterest income was due mainly to higher other commissions and fees and a higher gain on sale of securities. The increase in noninterest expense was due primarily to including the operations of Square 1 subsequent to the October 6, 2015 acquisition date and higher loan expense, offset by lower acquisition, integration and reorganization costs of $1.8 million.

40

Net Interest Income

Net interest income, which is our principal source of revenue, represents the difference between interest earned on interest‑earning assets and interest paid on interest‑bearing liabilities. Net interest margin is net interest income (annualized) expressed as a percentage of average interest‑earning assets. Net interest income is affected by changes in both interest rates and the volume of average interest‑earning assets and interest‑bearing liabilities.

The following table presents, for the periods indicated, the distribution of average assets, liabilities and stockholders’ equity, as well as interest income and yields earned on average interest‑earning assets and interest expense and rates paid on average interest‑bearing liabilities presented on a tax equivalent basis:

	Three Months Ended
	March 31, 2016						December 31, 2015						March 31, 2015
			Interest		Yields				Interest		Yields				Interest		Yields
	Average		Income/		and		Average		Income/		and		Average		Income/		and
	Balance		Expense		Rates		Balance		Expense		Rates		Balance		Expense		Rates
	(Dollars in thousands)
ASSETS:
PCI loans	$	167,626	$	20,072	48.16	%	$	169,772	$	6,345	14.83	%	$	260,648	$	10,165	15.82	%
Non-PCI loans and leases	14,303,539		216,303		6.08	%	13,861,330		213,332		6.11	%	11,795,034		191,932		6.60	%
Total loans and leases (1)	14,471,165		236,375		6.57	%	14,031,102		219,677		6.21	%	12,055,682		202,097		6.80	%
Investment securities (2)	3,460,293		27,563		3.20	%	3,492,124		28,408		3.23	%	1,613,422		13,980		3.51	%
Deposits in financial institutions	230,293		308		0.54	%	254,308		172		0.27	%	32,761		22		0.27	%
Total interest‑earning assets (2)	18,161,751		264,246		5.85	%	17,777,534		248,257		5.54	%	13,701,865		216,099		6.40	%
Other assets	3,036,843						3,047,714						2,594,775
Total assets	$	21,198,594					$	20,825,248					$	16,296,640
LIABILITIES AND STOCKHOLDERS’ EQUITY:
Interest checking deposits	$	926,256	383		0.17	%	$	889,035	345		0.15	%	$	726,748	194		0.11	%
Money market deposits	3,848,753		2,415		0.25	%	3,557,364		1,543		0.17	%	1,836,094		945		0.21	%
Savings deposits	753,371		444		0.24	%	747,054		445		0.24	%	756,578		571		0.31	%
Time deposits	3,860,272		5,831		0.61	%	4,439,940		7,058		0.63	%	5,481,886		8,769		0.65	%
Total interest‑bearing deposits	9,388,652		9,073		0.39	%	9,633,393		9,391		0.39	%	8,801,306		10,479		0.48	%
Borrowings	494,725		581		0.47	%	206,236		159		0.31	%	424,061		235		0.22	%
Subordinated debentures	436,535		4,982		4.59	%	435,293		4,748		4.33	%	432,603		4,525		4.24	%
Total interest‑bearing liabilities	10,319,912		14,636		0.57	%	10,274,922		14,298		0.55	%	9,657,970		15,239		0.64	%
Noninterest‑bearing demand deposits	6,273,249						6,043,900						2,949,719
Other liabilities	166,831						160,264						155,608
Total liabilities	16,759,992						16,479,086						12,763,297
Stockholders’ equity	4,438,602						4,346,162						3,533,343
Total liabilities and stockholders’
equity	$	21,198,594					$	20,825,248					$	16,296,640
Net interest income (tax equivalent) (2)			$	249,610					$	233,959					$	200,860
Net interest rate spread					5.28	%					4.99	%					5.76	%
Net interest margin					5.53	%					5.22	%					5.95	%
Total deposits (3)	$	15,661,901	$	9,073	0.23	%	$	15,677,293	$	9,391	0.24	%	$	11,751,025	$	10,479	0.36	%
Funding sources (4)	$	16,593,161	$	14,636	0.35	%	$	16,318,822	$	14,298	0.35	%	$	12,607,689	$	15,239	0.49	%

_____________________

(1) Includes nonaccrual loans and leases and loan fees.

(2) Includes tax-equivalent adjustments of $5.0 million, $4.8 million, and $1.8 million for the three months ended March 31, 2016, December 31, 2015, and March 31, 2015, respectively, related to tax-exempt income on municipal securities. The federal statutory tax rate utilized was 35% for the periods.

(3) Total deposits is the sum of interest-bearing deposits and noninterest-bearing demand deposits. The cost of total deposits is calculated as annualized interest expense on deposits divided by average total deposits.

(4) Funding sources is the sum of interest-bearing liabilities and noninterest-bearing demand deposits. The cost of funding sources is calculated as annualized total interest expense divided by average funding sources.

41

The tax equivalent net interest margin (“NIM”) and loan and lease yields are impacted by accelerated accretion of acquisition discounts resulting from early payoffs of acquired loans, which causes volatility from period to period. The effects of this item on the NIM and loan and lease yield are shown in the following table for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2016		2015
NIM:
Reported	5.53	%	5.22	%	5.95	%
Less: Accelerated accretion of acquisition discounts
from early payoffs of acquired loans	(0.43	)%	(0.12	)%	(0.51	)%
Core	5.10	%	5.10	%	5.44	%
Loan and Lease Yield:
Reported	6.57	%	6.21	%	6.80	%
Less: Accelerated accretion of acquisition discounts
from early payoffs of acquired loans	(0.54	)%	(0.16	)%	(0.58	)%
Core	6.03	%	6.05	%	6.22	%

The following table presents the impact on tax equivalent net interest income and NIM from all purchase accounting items as indicated in the table below for the periods indicated:

	Three Months Ended
	March 31,			December 31,			September 30,			June 30,			March 31,
	2016			2015			2015			2015			2015
	(Dollars in thousands)
Impact on Net Interest Income:
Net interest income (tax equivalent)	$	249,610		$	233,959		$	195,274		$	204,721		$	200,860
Less:
Accelerated accretion of acquisition discounts
from early payoffs of acquired loans	(19,465		)	(5,511		)	(9,659		)	(19,447		)	(17,352		)
Remaining accretion of Non-PCI loan acquisition
discounts	(8,403		)	(10,553		)	(7,485		)	(8,575		)	(11,128		)
Total accretion of loan acquisition discounts	(27,868		)	(16,064		)	(17,144		)	(28,022		)	(28,480		)
Amortization of TruPS discount	1,395			1,397			1,399			1,400			1,401
Accretion of time deposits premium	(270		)	(384		)	(576		)	(799		)	(1,285		)
Total purchase accounting adjustments	(26,743		)	(15,051		)	(16,321		)	(27,421		)	(28,364		)
Net interest income - excluding purchase accounting	$	222,867		$	218,908		$	178,953		$	177,300		$	172,496
Impact on Net Interest Margin:
Net interest margin (tax equivalent)	5.53		%	5.22		%	5.46		%	5.89		%	5.95		%
Less:
Accelerated accretion of acquisition discounts
from early payoffs of acquired loans	(0.43		)%	(0.12		)%	(0.27		)%	(0.56		)%	(0.51		)%
Remaining accretion of Non-PCI loan acquisition
discounts	(0.19		)%	(0.24		)%	(0.21		)%	(0.25		)%	(0.33		)%
Total accretion of loan acquisition discounts	(0.62		)%	(0.36		)%	(0.48		)%	(0.81		)%	(0.84		)%
Amortization of TruPS discount	0.03		%	0.03		%	0.04		%	0.04		%	0.04		%
Accretion of time deposits premium	(0.01		)%	(0.01		)%	(0.02		)%	(0.02		)%	(0.04		)%
Total purchase accounting adjustments	(0.60		)%	(0.34		)%	(0.46		)%	(0.79		)%	(0.84		)%
Net interest margin - excluding purchase accounting	4.93		%	4.88		%	5.00		%	5.10		%	5.11		%

42

First Quarter of 2016 Compared to Fourth Quarter of 2015

Net interest income increased by $15.4 million to $244.6 million for the first quarter of 2016 compared to $229.2 million for the fourth quarter of 2015 due to higher accretion on acquired loans and a higher average loan and lease balance, offset by a lower average investment securities balance. The loan and lease yield for the first quarter of 2016 was 6.57% compared to 6.21% for the fourth quarter of 2015. The increase in the loan and lease yield was due to higher accretion on acquired loans offset by the lower yield on new originations compared to the current portfolio yield. Accretion on acquired loans was $27.9 million in the first quarter of 2016 (77 basis points on the loan and lease yield) compared to $16.1 million in the fourth quarter of 2015 (46 basis points on the loan and lease yield). The increase in accretion was due primarily to higher accelerated accretion from early payoffs of acquired loans and $12.1 million from the payoff of a nonaccrual PCI loan. Excluding accelerated accretion, the core loan and lease yield was 6.03% in the first quarter compared to 6.05% in the fourth quarter.

The tax equivalent NIM for the first quarter of 2016 was 5.53% compared to 5.22% for the fourth quarter of 2015. The increase in the tax equivalent NIM was due to higher accretion on acquired loans and higher-yielding assets were a higher percentage of average interest-earning assets. Accretion on acquired loans contributed 62 basis points to the NIM in the first quarter of 2016 and 36 basis points in the fourth quarter of 2015. Excluding accelerated accretion, the core NIM was 5.10% for both the first and fourth quarters. Tax-free interest income contributed 11 basis points to the tax equivalent NIM for both the first quarter of 2016 and fourth quarter of 2015.

The cost of total deposits decreased to 0.23% in the first quarter of 2016 from 0.24% in the fourth quarter of 2015 due primarily to the increased average balance of noninterest-bearing deposits and a lower level of higher-cost time deposits.

First Quarter of 2016 Compared to First Quarter of 2015

Net interest income increased by $45.5 million to $244.6 million for the first quarter of 2016 compared to $199.1 million for the first quarter of 2015 due mainly to higher average interest-earning asset balances attributable to the Square 1 acquisition, offset partially by lower yields on average loans and leases and investment securities. The loan and lease yield for the first quarter of 2016 was 6.57% compared to 6.80% for the same quarter of 2015. The decrease in the loan and lease yield was due mainly to yields on newly originated loans being lower than the average portfolio yield and the higher-yielding PCI loan portfolio being a smaller percentage of the entire loan portfolio, offset by the PCI loan yield being higher in the current period. Accretion on acquired loans was $27.9 million in the first quarter of 2016 (77 basis points on the loan and lease yield) compared to $28.5 million in the first quarter of 2015 (95 basis points on the loan and lease yield). Although the dollar amount of accretion was relatively the same for the two periods, the basis point impact to the loan and lease yield was significantly less in the current quarter due to the higher average loan and lease balance.

The tax equivalent NIM for the first quarter of 2016 was 5.53% compared to 5.95% for the same quarter last year. The decrease in the tax equivalent NIM was due mostly to lower yields on new originations compared to the average portfolio yield, the lower yield on average investment securities, and the higher-yielding PCI loan portfolio being a smaller percentage of the entire loan portfolio, offset by the PCI loan yield being higher in the current period. Accretion on acquired loans contributed 62 basis points to the NIM for the first quarter of 2016 compared to 84 basis points for the first quarter of 2015. Although the dollar amount of accretion was relatively the same for the two periods, the basis point impact to the NIM was significantly less in the current quarter due to the higher average interest-earning assets balance. Tax-free interest income contributed 11 basis points to the tax equivalent NIM for the first quarter of 2016 and five basis points for the first quarter of 2015.

The cost of total deposits decreased to 0.23% for the first quarter of 2016 from 0.36% for the first quarter of 2015 due mainly to the $3.8 billion of lower-cost core deposits added in the Square 1 acquisition, a lower level of higher-cost time deposits, and a lower average cost of interest-bearing deposits.

43

Provision for Credit Losses

The following table sets forth the details of the provision for credit losses and allowance for credit losses data for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Dollars in thousands)
Provision For Credit Losses:
Addition to allowance for Non‑PCI loans and leases	$	19,165		$	11,500		$	16,604
Addition to reserve for unfunded loan
commitments	835			3,614			563
Total provision for Non‑PCI loans and leases	20,000			15,114			17,167
Provision (negative provision) for PCI Loans	140			(1,342		)	(733		)
Total provision for credit losses	$	20,140		$	13,772		$	16,434
Non‑PCI Credit Quality Metrics:
Net charge‑offs (recoveries) on Non‑PCI loans and leases	$	3,892		$	(1,718	)	$	7,380
Annualized net charge‑offs (recoveries) to average
Non-PCI loans and leases	0.11		%	(0.05		)%	0.25		%
At period end:
Allowance for loan and lease losses	$	120,807		$	105,534		$	79,680
Allowance for credit losses	138,376			122,268			86,554
Non‑PCI nonaccrual loans and leases	130,418			129,019			139,334
Non‑PCI classified loans and leases	384,698			391,754			333,182
Allowance for credit losses to Non‑PCI loans and leases	0.96		%	0.85		%	0.72		%
Allowance for credit losses to Non‑PCI nonaccrual
loans and leases	106.1		%	94.8		%	62.1		%

Provisions for credit losses are charged to earnings for both on and off‑balance sheet credit exposures. We have a provision for credit losses on our Non‑PCI loans and leases and a provision for credit losses on our PCI loans. The provision for credit losses on our Non‑PCI loans and leases is based on our allowance methodology and is an expense, or contra‑expense, that, in our judgment, is required to maintain an adequate allowance for credit losses. Our allowance methodology uses our actual historical loan and lease charge-off experience on pools of similar loans and leases, considers the current credit risk ratings, giving greater weight to loans with more adverse credit risk ratings, and considers subjective criteria such as current economic trends and forecasts, current commercial real estate values and performance trends, and the loan portfolio credit performance trends. The provision for credit losses on our PCI loans results from decreases or increases in expected cash flows on such loans compared to those previously estimated.

We recorded a provision for credit losses of $20.1 million in the first quarter of 2016 and $13.8 million in the fourth quarter of 2015 in accordance with our allowance methodology. The first quarter provision related almost entirely to Non-PCI loans and leases and increased due in part to additions to our oil and gas portfolio reserves.

Certain circumstances may lead to increased provisions for credit losses in the future. Examples of such circumstances are net loan and lease and unfunded commitment growth, an increased amount of loan and lease charge-offs, changes in economic conditions, such as the rate of economic growth, the rate of inflation, the unemployment rate, increases in the general level of interest rates, declines in real estate values and adverse conditions in borrowers’ businesses. See further discussion in “Balance Sheet Analysis - Allowance for Credit Losses on Non‑PCI Loans” and “Balance Sheet Analysis - Allowance for Credit Losses on PCI Loans” contained herein.

44

Noninterest Income

The following table summarizes noninterest income by category for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Noninterest Income:
Service charges on deposit accounts	$	3,856		$	3,901		$	2,574
Other commissions and fees	11,489			12,691			5,396
Leased equipment income	8,244			7,791			5,382
Gain on sale of loans and leases	245			183			—
Gain (loss) on sale of securities	8,110			—			3,275
FDIC loss sharing expense, net	(2,415		)	(4,291		)	(4,399		)
Other income:
Dividends and realized gains on equity investments	246			4,886			3,477
Foreign currency translation net gains (losses)	606			(661		)	2,597
Income recognized on early repayment of leases	922			802			736
Other	3,236			2,756			1,833
Total noninterest income	$	34,539		$	28,058		$	20,871

First Quarter of 2016 Compared to Fourth Quarter of 2015

Noninterest income increased by $6.5 million to $34.5 million for the first quarter of 2016 compared to $28.1 million for the fourth quarter of 2015 due mostly to higher gains on sales of securities of $8.1 million and lower FDIC loss sharing expense of $1.9 million, offset by lower dividends and gains on equity investments of $4.6 million. The gain on sale of securities resulted from the sale of $335 million of securities in the first quarter as part of our ongoing portfolio management activities. The lower FDIC loss sharing expense is due to a fewer number and decreased balance of covered assets combined with fewer asset resolutions this quarter compared to the previous quarter. Dividends and gains from equity investments decreased as this item fluctuates from period to period based upon dividends received and number of sales of equity investments. Other income in the first quarter included a loan syndication fee ($0.9 million), a death benefit received on a BOLI policy ($0.6 million) and a loss on the sale of the PWEF leasing unit ($0.7 million); there are no similar items in the other periods presented.

First Quarter of 2016 Compared to First Quarter of 2015

Noninterest income increased by $13.7 million to $34.5 million for the first quarter of 2016 compared to $20.9 million for the first quarter of 2015. The increase was due mostly to higher other commissions and fees of $6.1 million, higher gains on sales of securities of $4.8 million, higher leased equipment income of $2.9 million, lower FDIC loss sharing expense of $2.0 million, higher other income of $1.4 million, and higher service charges on deposit accounts of $1.3 million, offset by lower dividends and gains on equity investments of $3.2 million and lower foreign currency translation net gains of $2.0 million. The increase in other commissions and fees was comprised mostly of $2.8 million from loan prepayment fees, $1.7 million from foreign exchange fees, and $0.7 million from credit card fee income. The increases in the last two items are due to the Square 1 acquisition. The increase in service charges on deposits was due primarily to higher analysis fees as a result of increased number of customer accounts. The decrease in foreign currency translation net gains was due mainly to the cross currency swap the Company entered into in June 2015 to reduce the foreign currency translation volatility related to its Euro-denominated subordinated debenture.

45

Noninterest Expense

The following table summarizes noninterest expense by category for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Noninterest Expense:
Compensation	$	61,065		$	58,992		$	47,737
Occupancy	12,632			12,194			10,600
Data processing	5,904			5,585			4,308
Other professional services	3,572			3,811			3,221
Insurance and assessments	4,965			5,450			3,025
Intangible asset amortization	4,746			4,910			1,501
Leased equipment depreciation	5,024			4,235			3,103
Foreclosed assets (income) expense, net	(561		)	(3,185		)	336
Acquisition, integration and reorganization costs	200			17,600			2,000
Other expense:
Loan expense	2,155			2,745			339
Other	10,986			9,927			8,190
Total noninterest expense	$	110,688		$	122,264		$	84,360

The following table presents the components of foreclosed assets (income) expense, net for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Foreclosed Assets (Income) Expense:
Provision for losses	$	—		$	65		$	124
Operating (income) expense	(57		)	(241		)	106
(Gain) loss on sale	(504		)	(3,009		)	106
Total foreclosed assets (income) expense, net	$	(561	)	$	(3,185	)	$	336

First Quarter of 2016 Compared to Fourth Quarter of 2015

Noninterest expense decreased by $11.6 million to $110.7 million for the first quarter of 2016 compared to $122.3 million for the fourth quarter of 2015. The decrease was due mostly to lower acquisition, integration and reorganization costs of $17.4 million offset by lower foreclosed assets income of $2.6 million and higher compensation expense of $2.1 million. Foreclosed assets income is lower due to lower gains on foreclosed asset sales compared to the prior quarter. Compensation expense increased due to higher payroll taxes from the timing of the annual employment tax cycle and higher stock-based compensation due to awards granted in the first quarter offset partially by lower commission and incentive expense.

First Quarter of 2016 Compared to First Quarter of 2015

Noninterest expense increased by $26.3 million to $110.7 million for the first quarter of 2016 compared to $84.4 million for the first quarter of 2015. The increase was due primarily to including the operations of Square 1 subsequent to its October 6, 2015 acquisition date and higher loan expenses, offset by lower acquisition, integration and reorganization costs of $1.8 million. Loan-related expense increased due to lower recoveries of legal costs; the first quarter of 2015 included a $1.7 million recovery of legal costs on a single matter.

46

Income Taxes

The effective tax rate for the first quarter of 2016 was 39.0% compared to 40.7% for the fourth quarter of 2015 and 38.7% for the first quarter of 2015. The Company's blended statutory tax rate for federal and state is 41%. The first quarter effective tax rate approximates the expected effective tax rate for calendar year 2016.

Balance Sheet Analysis

Investment Portfolio

The following table presents the components, yields, and durations of our securities available-for-sale as of the date indicated:

	March 31, 2016
	Amortized		Fair			Duration
Security Type:	Cost		Value		Yield(1)(2)	(in years)
	(Dollars in thousands)
Residential mortgage-backed securities:
Government agency and government-sponsored enterprise pass through securities	$	642,233	$	653,865	2.06%	3.2
Government agency and government-sponsored enterprise collateralized mortgage obligations	431,456		443,732		1.95%	4.2
Private label collateralized mortgage obligations	131,045		135,245		4.58%	2.4
Municipal securities	1,457,795		1,517,592		3.92%	6.4
Corporate debt securities	47,269		45,483		7.64%	5.2
Collateralized loan obligations	142,637		139,572		2.97%	0.1
SBA securities	201,934		202,674		0.17%	1.9
Asset-backed and other securities	104,182		102,423		2.34%	2.5
Total securities available-for-sale	$	3,158,551	$	3,240,586	3.03%	4.6

______________________________________

(1) Represents the yield for the month of March 31, 2016.

(2) Tax-equivalent basis.

The following table shows the geographic composition of the majority of our municipal securities portfolio as of the date indicated:

	March 31, 2016
	Carrying		% of
Municipal Securities by State:	Value		Total
	(Dollars in thousands)
California	$	204,433	13	%
New York	184,689		12	%
Washington	169,153		11	%
Texas	118,501		8	%
Ohio	97,019		6	%
Massachusetts	67,626		4	%
District of Columbia	67,074		4	%
Florida	53,499		4	%
Illinois	44,530		3	%
Oregon	40,100		3	%
Total of 10 largest states	1,046,624		68	%
All other states	470,968		32	%
Total municipal securities	$	1,517,592	100	%

47

Loans and Leases

The following table presents the composition of our total loans and leases as of the dates indicated:

	March 31, 2016				December 31, 2015
			% of				% of
	Amount		Total		Amount		Total
	(Dollars in thousands)
Real estate mortgage:
Healthcare real estate	$	1,184,380	8	%	$	1,230,787	9	%
Hospitality	690,097		5	%	656,750		5	%
SBA program	468,281		3	%	473,960		3	%
Other commercial real estate	2,297,618		16	%	2,284,036		16	%
Total commercial real estate	4,640,376		32	%	4,645,533		33	%
Income producing residential	982,116		7	%	1,035,164		7	%
Owner-occupied residential	167,882		1	%	176,045		1	%
Total residential real estate	1,149,998		8	%	1,211,209		8	%
Total real estate mortgage	5,790,374		40	%	5,856,742		41	%
Real estate construction:
Commercial	308,191		2	%	345,991		2	%
Residential	269,965		2	%	184,382		1	%
Total real estate construction	578,156		4	%	530,373		3	%
Total real estate loans	6,368,530		44	%	6,387,115		44	%
Commercial:
Technology cash flow	993,110		7	%	978,283		7	%
Security cash flow	467,563		3	%	450,544		3	%
Healthcare cash flow	931,701		7	%	865,355		6	%
Other cash flow	781,094		5	%	779,783		5	%
Total cash flow	3,173,468		22	%	3,073,965		21	%
Lender finance & timeshare	1,641,294		11	%	1,587,577		11	%
Healthcare asset based	207,231		1	%	228,445		2	%
Other asset based	741,073		5	%	731,643		5	%
Total asset based	2,589,598		17	%	2,547,665		18	%
Venture capital services	204,299		1	%	228,863		2	%
Early stage	362,421		3	%	347,298		2	%
Expansion stage	654,398		5	%	600,541		4	%
Later stage	286,670		2	%	281,311		2	%
Venture capital	1,507,788		11	%	1,458,013		10	%
Equipment finance	733,228		5	%	890,349		6	%
Total commercial	8,004,082		55	%	7,969,992		55	%
Consumer	110,905		1	%	121,147		1	%
Total loans and leases, net of deferred fees	$	14,483,517	100	%	$	14,478,254	100	%

Our real estate portfolio exposes us to risks associated with mortgage loans on commercial property. Commercial real estate mortgage loan repayments typically do not rely on the sale of the underlying collateral, but instead rely on the income producing potential of the collateral as the source of repayment. However, due to the loan amortization period generally being greater than the contractual loan term, the borrower may be required to refinance the loan, either with us or another lender, or pay off the loan, by selling the underlying collateral. Our commercial-related real estate loans do not expose us to risks generally associated with residential mortgage loans such as option adjustable-rate mortgage ("ARM"), interest-only, or subprime mortgage loans.

48

Credit Exposure Affected by Low Oil Prices

At March 31, 2016, we had 19 outstanding loan and lease relationships totaling $127.7 million to borrowers and lessees primarily involved in the oil and gas industry down from $137.3 million at December 31, 2015. The obligors under these loans and leases either conduct oil and gas extraction or provide industrial support services to such types of businesses. The collateral for these loans and leases includes primarily equipment, such as drilling and mining equipment and transportation vehicles, used directly and indirectly in these activities. At March 31, 2016, three relationships totaling $45.5 million were on nonaccrual status and were classified, down from $47.1 million at December 31, 2015. The largest of these relationships had an aggregate outstanding balance of $39.9 million at March 31, 2016. Reserves related to our total oil and gas services industry exposure were approximately 15% at March 31, 2016, which included reserves of 32% related to our impaired oil and gas services industry exposure. Unfunded commitments related to the oil and gas portfolio totaled $20.3 million at March 31, 2016 and relate to two relationships governed with a borrowing base for accounts receivable and inventory.

The following table presents loan and lease relationships having exposure to the oil and gas industries as of the date indicated:

	March 31, 2016
	Obligors	Amount		% of Total
	(Dollars in thousands)
Nonaccrual	3	$	45,495	36	%
Large, rated companies(1)	2	47,739		37	%
All others(2)	14	34,424		27	%
Total oil & gas support services	19	$	127,658	100	%

_______________________________________

(1) Borrowing entity or obligor contractual counterpart rated BB+ or higher.

(2) Average relationship balance of approximately $2.5 million.

The following table presents the geographic composition of the majority of our real estate loans as of the dates indicated:

	March 31, 2016				December 31, 2015
			% of				% of
Real Estate Loans by State:	Amount		Total		Amount		Total
	(Dollars in thousands)
California	$	3,171,670	49.9	%	$	3,121,801	48.9	%
Florida	513,951		8.1	%	488,793		7.6	%
New York	371,459		5.8	%	342,815		5.4	%
Texas	261,126		4.1	%	315,433		4.9	%
Pennsylvania	238,602		3.7	%	215,945		3.4	%
Virginia	182,182		2.9	%	182,040		2.8	%
Arizona	160,065		2.5	%	157,431		2.5	%
Illinois	140,061		2.2	%	144,177		2.3	%
New Jersey	122,029		1.9	%	120,793		1.9	%
Maryland	117,267		1.8	%	89,019		1.4	%
Total of 10 largest states	5,278,412		82.9	%	5,178,247		81.1	%
All other states	1,090,118		17.1	%	1,208,868		18.9	%
Total real estate loans	$	6,368,530	100.0	%	$	6,387,115	100.0	%

49

The following table presents a roll forward of the loan and lease portfolio for the period indicated:

	Three Months Ended
Loan and Lease Roll Forward (1):	March 31, 2016
	(Dollars in thousands)
Beginning balance	$	14,478,254
New production	842,064
Existing loans and leases:
Principal repayments, net(2)	(665,281		)
Loan and lease sales (3)	(26,657		)
Transfers to foreclosed assets	(129		)
Charge-offs	(5,536		)
Sale of Pacific Western Equipment Finance ("PWEF")	(139,198		)
Ending balance	$	14,483,517
Weighted average yield on new production	5.29		%

_______________________________________

(1) Includes direct financing leases but excludes equipment leased to others under operating leases.

(2) Includes principal repayments on existing loans, changes in revolving lines of credit (repayments and draws), loan participation sales and other changes within the loan portfolio.

(3) Includes $15.1 million of PWEF leases sold to third parties during the three months ended March 31, 2016.

Allowance for Credit Losses on Non-PCI Loans and Leases

The allowance for credit losses on non-purchased credit impaired ("Non-PCI") loans and leases is the combination of the allowance for loan and lease losses and the reserve for unfunded loan commitments. The allowance for loan and lease losses is reported as a reduction of outstanding loan and lease balances and the reserve for unfunded loan commitments is included within "Accrued interest payable and other liabilities" on the condensed consolidated balance sheets. The following discussion is for Non-PCI loans and leases and the allowance for credit losses thereon. Refer to "Balance Sheet Analysis - Allowance for Credit Losses on PCI Loans" for the policy on PCI loans. For loans and leases acquired and measured at fair value and deemed non-impaired on the acquisition date, our allowance methodology measures deterioration in credit quality or other inherent risks related to these acquired assets that may occur after the acquisition date.

The allowance for loan and lease losses is maintained at a level deemed appropriate by management to adequately provide for known and inherent risks in the loan and lease portfolio and other extensions of credit at the balance sheet date. The allowance is based upon our continual review of the credit quality of the loan and lease portfolio, which includes loan and lease payment trends, borrowers' compliance with loan agreements, borrowers' current and budgeted financial performance, collateral valuation trends, and current economic factors and external conditions that may affect our borrowers' ability to pay. Loans and leases that are deemed to be uncollectable are charged off and deducted from the allowance. The provision for loan and lease losses and recoveries on loans and leases previously charged off are added to the allowance.

The allowance for loan and lease losses contains a general reserve component for loans and leases with no credit impairment and a specific reserve component for loans and leases determined to be impaired.

A loan or lease is considered impaired when it is probable that we will be unable to collect all amounts due according to the original contractual terms of the agreement. We assess our loans for impairment on an ongoing basis using certain criteria such as payment performance, borrower reported financial results and budgets, and other external factors when appropriate. We measure impairment of a loan based upon the fair value of the loan’s collateral if the loan is collateral-dependent or the present value of cash flows, discounted at the loan’s effective interest rate, if the loan is not collateral-dependent. We measure impairment of a lease based upon the present value of the scheduled lease and residual cash flows, discounted at the lease's effective interest rate. To the extent a loan or lease balance exceeds the estimated collectable value, a specific reserve or charge-off is recorded depending upon the certainty of the estimate of loss. Smaller balance loans (under $250,000), with a few exceptions for certain loan types, are generally not individually assessed for impairment but are evaluated collectively.

50

The methodology we use to estimate the general reserve component of our allowance for credit losses considers both quantitative and qualitative criteria. The quantitative criteria uses our actual historical loan and lease charge-off experience on pools of similar loans and leases to establish loss factors that are applied to our current loan and lease balances to estimate inherent credit losses. When estimating the general reserve component for the various pools of similar loan types, the loss factors applied to the loan pools consider the current credit risk ratings, giving greater weight to loans with more adverse credit risk ratings. We recognize that the determination of the allowance for loan and lease losses is sensitive to the assigned credit risk ratings and inherent loss rates at any given point in time. To ensure the accuracy of our credit risk ratings, an independent credit review function assesses the ratings assigned to loans on an ongoing basis.

The qualitative criteria considered when establishing the loss factors include the following:

• current economic trends and forecasts;

• current commercial real estate values, performance trends, and overall outlook in the markets where we lend;

• legal and regulatory matters that could impact our borrowers’ ability to repay our loans and leases;

• our loan and lease portfolio composition and any loan concentrations;

• our current lending policies and the effects of any new policies or policy amendments;

• our new loan and lease origination volume and the nature of it;

• our loan and lease portfolio credit performance trends; and

• the results of our ongoing independent credit review.

The reserve for unfunded commitments is estimated using the same loss factors as used for the allowance for loan and lease losses and is computed based only on the expected usage of the unfunded commitments.

The credit risk ratings assigned to every loan and lease are either “pass,” “special mention,” “substandard” or “doubtful” and defined as follows:

• Pass: Loans and leases classified as "pass" are not adversely classified and collection and repayment in full are expected.

• Special Mention: Loans and leases classified as "special mention" have a potential weakness that requires management's attention. If not addressed, these potential weaknesses may result in further deterioration in the borrower's ability to repay the loan or lease.

• Substandard: Loans and leases classified as "substandard" have a well-defined weakness or weaknesses that jeopardize the collection of the debt. They are characterized by the possibility that we will sustain some loss if the weaknesses are not corrected.

• Doubtful: Loans and leases classified as "doubtful" have all the weaknesses of those classified as "substandard," with the additional trait that the weaknesses make collection or repayment in full highly questionable and improbable.

In addition, we may refer to the loans and leases with assigned credit risk ratings of "substandard" and "doubtful" together as "classified" loans and leases. For further information on classified loans and leases, see Note 5, Loans and Leases, of the Notes to Condensed Consolidated Financial Statements (Unaudited) contained in "Item 1. Condensed Consolidated Financial Statements (Unaudited)."

Management believes the allowance for credit losses is appropriate for the known and inherent risks in our Non-PCI loan and lease portfolio and the credit risk ratings and inherent loss rates currently assigned are appropriate. It is possible that others, given the same information, may at any point in time reach different conclusions that could result in a significant impact to the Company's financial statements. In addition, current credit risk ratings are subject to change as we continue to monitor our loans and leases. To the extent we experience, for example, increased levels of documentation deficiencies, adverse changes in collateral values, or negative changes in economic and business conditions that adversely affect our borrowers, our classified loans and leases may increase. Higher levels of classified loans and leases generally result in increased provisions for credit losses and an increased allowance for credit losses. Although we have established an allowance for credit losses that we consider appropriate, there can be no assurance that the established allowance will be sufficient to absorb related losses in the future.

51

The following table presents information regarding the allowance for credit losses on Non-PCI loans and leases as of the dates indicated:

	March 31,			December 31,			March 31,
Non-PCI Allowance for Credit Losses Data:	2016			2015			2015
	(Dollars in thousands)
Allowance for loan and lease losses	$	120,807		$	105,534		$	79,680
Reserve for unfunded loan commitments	17,569			16,734			6,874
Total allowance for credit losses	$	138,376		$	122,268		$	86,554
Allowance for credit losses to loans and leases	0.96		%	0.85		%	0.72		%
Allowance for credit losses to nonaccrual loans and leases	106.1		%	94.8		%	62.1		%

All acquired loans are recorded initially at their estimated fair value with such initial fair value including an estimate of credit losses. Two additional credit coverage ratios shown in the table below are presented to give an indication of overall credit risk coverage:

	March 31, 2016								December 31, 2015
	Non-PCI								Non-PCI
	Loans and			Allowance/			Coverage		Loans and			Allowance/			Coverage
Non-PCI Credit Risk Coverage Ratios:	Leases			Discount			Ratio		Leases			Discount			Ratio
	(Dollars in thousands)
Ending balance	$	14,365,915		$	138,376		0.96	%	$	14,339,070		$	122,268		0.85	%
Acquired loans	(5,468,875		)	(34,231		)			(6,030,921		)	(19,127		)
Adjusted balance	$	8,897,040		$	104,145		1.17	%	$	8,308,149		$	103,141		1.24	%
Ending balance	$	14,365,915		$	138,376		0.96	%	$	14,339,070		$	122,268		0.85	%
Unamortized purchase discount	78,761			78,761					92,192			92,192
Adjusted balance	$	14,444,676		$	217,137		1.50	%	$	14,431,262		$	214,460		1.49	%

The first additional credit coverage ratio calculation makes adjustments for acquired loans and leases and the related allowance. Our Non‑PCI loans and leases at March 31, 2016, included $5.5 billion in loans and leases acquired in acquisitions. These acquired loans and leases were initially recorded at their estimated fair values and such initial fair values included an estimate of credit losses. The allowance calculation for Non‑PCI loans and leases takes into consideration those acquired loans and leases whose credit quality has deteriorated since their acquisition dates. At March 31, 2016, our allowance for credit losses included $34.2 million related to these acquired loans and leases. When these acquired loans and leases are excluded from the total of Non‑PCI loans and leases and the related allowance is excluded from the allowance for credit losses, the result is an adjusted coverage ratio of our allowance for credit losses to Non‑PCI loans and leases of 1.17% at March 31, 2016; at December 31, 2015, this ratio was 1.24%.

The second additional credit coverage ratio calculation makes an adjustment for the unamortized purchase discount on acquired loans and leases. Our acquired Non-PCI loans and leases included an unamortized purchase discount of $78.8 million at March 31, 2016, which is assigned specifically to those loans and leases only. Such discount represents the acquisition date fair value adjustment based on market, liquidity, interest rate and credit risk. When the unamortized purchase discount is added back separately to both our Non-PCI loans and leases and allowance for credit losses, the result is an adjusted coverage ratio of our allowance for credit losses to Non-PCI loans and leases of 1.50% at March 31, 2016; at December 31, 2015, this ratio was 1.49%.

The unamortized purchase discount is being accreted to interest income over the remaining life of the respective loans and leases primarily using the interest method. Use of the interest method results in steadily declining amounts being taken into income in each reporting period. The remaining discount of $78.8 million at March 31, 2016 is expected to be substantially accreted to income by the end of 2018.

52

The following table presents the changes in our allowance for credit losses on Non-PCI loans and leases for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
Non-PCI Allowance for Credit Losses:	2016			2015			2015
	(Dollars in thousands)
Allowance for credit losses, beginning of period	$	122,268		$	100,690		$	76,767
Provision for credit losses:
Addition to allowance for loan and lease losses	19,165			11,500			16,604
Addition to reserve for unfunded
loan commitments	835			3,614			563
Provision for credit losses	20,000			15,114			17,167
Loans and leases charged off:
Real estate mortgage	(737		)	(723		)	(1,453		)
Commercial	(4,045		)	(389		)	(8,395		)
Consumer	(591		)	(41		)	(63		)
Total loans and leases charged off	(5,373		)	(1,153		)	(9,911		)
Recoveries on loans charged off:
Real estate mortgage	999			1,799			1,295
Real estate construction and land	152			48			632
Commercial	314			1,007			410
Consumer	16			17			194
Total recoveries on loans charged off	1,481			2,871			2,531
Net (charge-offs) recoveries	(3,892		)	1,718			(7,380		)
Fair value of acquired reserve for unfunded commitments	—			4,746			—
Allowance for credit losses, end of period	$	138,376		$	122,268		$	86,554
Annualized net charge-offs (recoveries) to
average loans and leases	0.11		%	(0.05		)%	0.25		%

Allowance for Credit Losses on PCI Loans

The PCI loans are subject to our internal and external credit review. For PCI loans, the allowance for loan losses is measured at the end of each financial reporting period based on expected cash flows. Decreases or (increases) in the amount and changes in the timing of expected cash flows on the PCI loans as of the financial reporting date compared to those previously estimated are usually recognized by recording a provision or a (negative provision) for credit losses on such loans. If deterioration in the expected cash flows results in a reserve requirement, a provision for credit losses is charged to earnings.

The following table presents the changes in our allowance for credit losses on PCI loans for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
PCI Allowance for Credit Losses:	2016			2015			2015
	(In thousands)
Allowance for credit losses on PCI loans,
beginning of period	$	9,577		$	10,955		$	13,999
Provision (negative provision)	140			(1,342		)	(733		)
Net (charge-offs) recoveries	(163		)	(36		)	(568		)
Allowance for credit losses on PCI loans, end of period	$	9,554		$	9,577		$	12,698

53

Nonperforming Assets and Performing Restructured Loans

The following table presents nonperforming assets and performing restructured loans information as of the dates indicated:

	March 31,			December 31,			March 31,
	2016			2015			2015
	(Dollars in thousands)
Nonaccrual Non-PCI loans and leases	$	130,418		$	129,019		$	139,334
Nonaccrual PCI loans(1)	3,241			4,596			23,331
Total nonaccrual loans	133,659			133,615			162,665
Non-PCI accruing loans contractually past due 90 days or more	2,538			700			—
Foreclosed assets, net	18,310			22,120			35,940
Total nonperforming assets	$	154,507		$	156,435		$	198,605
Performing restructured loans(2)	$	66,829		$	40,182		$	35,975
Nonaccrual loans and leases to loans and leases	0.92		%	0.92		%	1.32		%
Nonperforming assets to loans and leases and foreclosed assets, net	1.06		%	1.08		%	1.61		%

_______________________________________

(1) Represents legacy CapitalSource Inc. borrowing relationships placed on nonaccrual status as of the acquisition date.

(2) Excludes PCI loans.

Nonperforming assets include Non-PCI and PCI nonaccrual loans and leases and foreclosed assets and totaled $154.5 million at March 31, 2016 compared to $156.4 million at December 31, 2015. The $1.9 million decrease in nonperforming assets was due mostly to a $3.8 million decrease in foreclosed assets offset by a $1.8 million increase in Non-PCI accruing loans contractually past due 90 days or more. The ratio of nonperforming assets to loans and leases and foreclosed assets decreased to 1.06% at March 31, 2016 from 1.08% at December 31, 2015.

Nonaccrual Loans and Leases

During the first quarter of 2016, nonaccrual loan and leases remained relatively unchanged as additions totaled $41.8 million, offset by $29.6 million returned to accrual status and $12.1 million in principal payments and other reductions.

54

The following table presents our Non-PCI nonaccrual loans and leases and accruing loans and leases past due between 30 and 89 days by portfolio segment and class as of the dates indicated:

	Nonaccrual Loans and Leases								Accruing and
	March 31, 2016				December 31, 2015				30 - 89 Days Past Due
			% of				% of		March 31,		December 31,
			Loan				Loan		2016		2015
	Amount		Category		Amount		Category		Amount		Amount
	(Dollars in thousands)
Real estate mortgage:
Commercial	$	30,357	1	%	$	52,363	1	%	$	4,968	$	1,498
Residential	5,807		1	%	4,914		—	%	730		3,174
Total real estate mortgage	36,164		1	%	57,277		1	%	5,698		4,672
Real estate construction and land:
Commercial	—		—	%	—		—	%	—		—
Residential	370		—	%	372		—	%	—		—
Total real estate construction and land	370		—	%	372		—	%	—		—
Commercial:
Cash flow	39,665		1	%	15,800		1	%	639		1,118
Asset-based	2,046		—	%	2,505		—	%	—		1
Venture capital	—		—	%	124		—	%	9,554		250
Equipment finance	51,247		7	%	51,410		6	%	1,870		360
Total commercial	92,958		1	%	69,839		1	%	12,063		1,729
Consumer	926		1	%	1,531		1	%	30		628
Total Non-PCI loans and leases	$	130,418	1	%	$	129,019	1	%	$	17,791	$	7,029

_______________________________________

(1) Includes nonaccrual loans and leases to companies involved in the oil and gas industries of $45.5 million and $47.1 million at March 31, 2016 and December 31, 2015.

As of March 31, 2016, the Company's ten largest Non-PCI loan relationships on nonaccrual status had an aggregate carrying value of $102.9 million and represented 78.9% of total Non-PCI nonaccrual loans and leases. The largest of these relationships had an aggregate carrying value of $39.9 million. The borrower's business has been adversely affected by low oil prices.

Foreclosed Assets

The following table presents the components of foreclosed assets (primarily other real estate owned, or OREO) as of the dates indicated:

	March 31,		December 31,		March 31,
Property Type:	2016		2015		2015
	(In thousands)
Commercial real estate	$	—	$	487	$	1,036
Construction and land development	13,800		13,801		18,942
Multi-family	—		—		4,964
Single family residence	897		952		3,253
Total OREO, net	14,697		15,240		28,195
Other foreclosed assets	3,613		6,880		7,745
Total foreclosed assets	$	18,310	$	22,120	$	35,940

Foreclosed assets decreased $3.8 million during the first quarter of 2016 mainly as a result of sales of $3.9 million, offset by additions of $0.1 million.

55

Performing Restructured Loans

Non-PCI performing troubled debt restructured loans increased by $26.6 million during the first quarter of 2016 to $66.8 million at March 31, 2016. The increase was attributable to $29.1 million of transfers from nonaccrual restructured loans to performing restructured loans, offset by $2.5 million in payoffs and other reductions. At March 31, 2016, we had $55.1 million in real estate mortgage loans, $7.6 million in real estate construction and land loans, $3.9 million in commercial loans, and $0.2 million in consumer loans that were accruing interest under the terms of troubled debt restructurings.

The majority of the number of performing troubled debt restructured loans was on accrual status prior to the loan modifications and have remained on accrual status after the loan modifications due to the borrowers making payments before and after the restructurings. In these circumstances, generally, a borrower may have had a fixed-rate loan that they continued to repay, but may be having cash flow difficulties. In an effort to work with certain borrowers, we have agreed to interest rate reductions and/or interest-only payments for a period of time. In these cases, we do not forgive principal but may consider the extension of maturity date as part of the loan modification in order to assist the borrower. As a result of the current economic environment, we anticipate loan restructurings to continue.

Deposits

The following table presents the balance of each major category of deposits at the dates indicated:

	March 31, 2016				December 31, 2015
			% of				% of
Deposit Category:	Amount		Total		Amount		Total
	(Dollars in thousands)
Noninterest-bearing deposits	$	6,139,963	40	%	$	6,171,455	39	%
Interest checking deposits	921,189		6		874,349		5
Money market deposits	3,144,843		20		2,782,974		18
Savings deposits	764,323		5		742,795		5
Total core deposits	10,970,318		71		10,571,573		67
Brokered non-maturity deposits	985,784		6		942,253		6
Total non-maturity deposits	11,956,102		77		11,513,826		73
Time deposits under $100,000	1,357,598		9		1,656,227		11
Time deposits $100,000 and over	2,127,675		14		2,496,129		16
Total time deposits	3,485,273		23		4,152,356		27
Total deposits	$	15,441,375	100	%	$	15,666,182	100	%

Total deposits decreased $224.8 million during the first quarter to $15.4 billion at March 31, 2016, due mainly to a decrease in time deposits of $667.1 million offset partially by an increase in core deposits of $398.7 million. At March 31, 2016, core deposits totaled $11.0 billion, or 71% of total deposits, including $6.1 billion of noninterest-bearing demand deposits, or 40% of total deposits.

56

The following table summarizes the maturities of time deposits, together with their weighted average contractual rate, as of the date indicated:

	March 31, 2016
	Time		Time
	Deposits		Deposits		Total
	Under		$100,000		Time		Contractual
Maturity:	$100,000		or More		Deposits		Rate
	(Dollars in thousands)
Due in three months or less	$	480,954	$	886,887	$	1,367,841	0.69%
Due in over three months through six months	482,832		727,320		1,210,152		0.57%
Due in over six months through twelve months	282,781		390,141		672,922		0.51%
Due in over 12 months through 24 months	89,172		91,221		180,393		0.59%
Due in over 24 months	21,859		32,106		53,965		0.93%
Total	$	1,357,598	$	2,127,675	$	3,485,273	0.61%
At December 31, 2015	$	1,656,227	$	2,496,129	$	4,152,356	0.66%

Brokered time deposits totaled $165.5 million and $272.5 million at March 31, 2016 and December 31, 2015.

At March 31, 2016 and December 31, 2015, we had $733 million and $858 million, respectively, of time deposits that exceeded the FDIC insurance limit of $250,000, while the remaining $2.8 billion and $3.3 billion of time deposits met or fell below the FDIC insurance limit.

Regulatory Matters

Capital

Bank regulatory agencies measure capital adequacy through standardized risk-based capital guidelines that compare different levels of capital (as defined by such guidelines) to risk-weighted assets and off-balance sheet obligations. At March 31, 2016, Banks and bank holding companies considered to be “well capitalized” must maintain a minimum Tier 1 leverage ratio of 5.00%, a minimum common equity Tier 1 risk-based capital ratio of 6.50%, a minimum Tier 1 risk-based capital ratio of 8.00%, and a minimum total risk-based capital ratio of 10.00%. Regulatory capital requirements limit the amount of deferred tax assets that may be included when determining the amount of regulatory capital. Deferred tax asset amounts in excess of the calculated limit are disallowed from regulatory capital. At March 31, 2016, such disallowed amounts were $40.0 million for the Company and $0.2 million for the Bank. No assurance can be given that the regulatory capital deferred tax asset limitation will not increase in the future or that the Company or Bank will not have increased deferred tax assets that are disallowed.

Basel III, the new comprehensive regulatory capital rules for U.S. banking organizations became effective for the Company and the Bank on January 1, 2015, subject to phase-in periods for certain components and other provisions. The most significant provisions of Basel III which applied to the Company and the Bank were as follows: the phase-out of trust preferred securities from Tier 1 capital, the higher risk-weighting of high volatility and past due real estate loans, and the capital treatment of deferred tax assets and liabilities above certain thresholds.

The following table presents our regulatory capital ratios and the regulatory capital requirements under Basel III:

	March 31, 2016
	PacWest		Pacific		Well
	Bancorp		Western		Capitalized
	Consolidated		Bank		Requirement
Tier 1 Leverage	11.51	%	11.10	%	5.00	%
Common Equity Tier-1 Capital	12.63		12.18		6.50
Tier 1 Capital	12.63		12.18		8.00
Total Capital	15.96		13.05		10.00

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Beginning January 1, 2016, Basel III implemented a requirement for all banking organizations to maintain a capital conservation buffer above the minimum risk-based capital requirements in order to avoid certain limitations on capital distributions, stock repurchases and discretionary bonus payments to executive officers. The capital conservation buffer is exclusively comprised of common equity tier 1 capital, and it applies to each of the three risk-based capital ratios but not to the leverage ratio. At March 31, 2016, the Company and Bank are in compliance with the capital conservation buffer requirement. The capital conservation buffer will increase by 0.625% each year through 2019, at which point, the common equity tier 1, tier 1 and total capital ratio minimums inclusive of the capital conservation buffer will be 7.0%, 8.5% and 10.5%, respectively.

Subordinated Debentures

We issued subordinated debentures to trusts that were established by us or entities we previously acquired, which, in turn, issued trust preferred securities. The carrying value of subordinated debentures totaled $438.7 million at March 31, 2016. At March 31, 2016, none of the trust preferred securities was included in the Company's Tier I capital under the phase-out limitations of Basel III, and $426.6 million was included in Tier II capital.

Dividends on Common Stock and Interest on Subordinated Debentures

As a bank holding company, we are required to notify the Board of Governors of the Federal Reserve System (“FRB”) prior to declaring and paying a dividend to stockholders during any period in which quarterly and/or cumulative twelve-month net earnings are insufficient to fund the dividend amount, among other requirements. Interest payments made by us on subordinated debentures are considered dividend payments under FRB regulations.

Liquidity

Liquidity Management

The goals of our liquidity management are to ensure the ability of the Company to meet its financial commitments when contractually due and to respond to other demands for funds such as the ability to meet the cash flow requirements of customers who may be either depositors wanting to withdraw funds or borrowers who have unfunded commitments. We have an Executive Management ALM Committee, or "Executive ALM Committee," which is comprised of members of senior management and is responsible for managing balance sheet and off-balance sheet commitments to meet the needs of customers while achieving our financial objectives. Our Executive ALM Committee meets regularly to review funding capacities, current and forecasted loan demand, and investment opportunities.

We manage our liquidity by maintaining pools of liquid assets on-balance sheet, consisting of cash and due from banks, interest-earning deposits in other financial institutions and unpledged investment securities available-for-sale, which we refer to as our primary liquidity. In addition, we also maintain available borrowing capacity under secured borrowing lines with the FHLB and the Federal Reserve Bank of San Francisco (“FRBSF”), which we refer to as our secondary liquidity. In addition to its secured lines of credit, the Bank also maintains unsecured lines of credit, subject to availability, of $80.0 million with correspondent banks and $99.0 million with the FHLB, both for the purchase of overnight funds. In March 2016, the Bank became a member of the American Financial Exchange, through which it may either borrow or lend funds on an overnight basis with a group of pre-approved commercial banks. The availability of funds changes daily. There were no balances outstanding as of March 31, 2016.

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The following tables provide a summary of the Bank’s primary and secondary liquidity levels at the dates indicated:

	March 31,			December 31,
	2016			2015
	(In thousands)
Primary Liquidity - On-Balance Sheet:
Cash and due from banks	$	161,977		$	161,020
Interest-earning deposits at financial institutions	357,541			235,466
Investment securities available-for-sale	3,240,586			3,559,437
Less: pledged securities	(414,575		)	(421,574		)
Total primary liquidity	$	3,345,529		$	3,534,349
Ratio of primary liquidity to total deposits	21.7		%	22.6		%

	March 31,			December 31,
	2016			2015
	(In thousands)
Secondary Liquidity - Off-Balance Sheet
Available Secured Borrowing Capacity:
Total secured borrowing capacity with the FHLB	$	2,253,307		$	2,500,000
Less: secured advances outstanding	(550,000		)	(618,000		)
Net secured borrowing capacity with the FHLB	1,703,307			1,882,000
Secured borrowing capacity with the FRBSF	2,121,451			2,078,292
Total secondary liquidity	$	3,824,758		$	3,960,292

During the three months ended March 31, 2016, the Bank’s primary liquidity decreased by $188.8 million due primarily to a $318.9 million decrease in investment securities available-for-sale, offset by a $122.1 million increase in interest-earning deposits in financial institutions, a $7.0 million decrease in pledged investment securities available-for-sale, and a $1.0 million increase in cash and due from banks. The Bank’s secondary liquidity decreased by $135.5 million during the first quarter due mainly to a $246.7 million decrease in the borrowing capacity on the secured credit line with the FHLB, offset by a $68.0 million decrease in FHLB secured advances outstanding, and a $43.2 million increase in the borrowing capacity on the secured credit line with the FRBSF.

At March 31, 2016, certain qualifying loans totaling $3.0 billion were specifically pledged as collateral for the secured borrowing line maintained with the FRBSF. The FHLB borrowing lines are secured by a blanket lien on certain qualifying loans that are not pledged to the FRBSF.

In addition to our primary liquidity, the Bank generates liquidity from cash flows from our loan and securities portfolios and from our large base of core customer deposits, defined as noninterest-bearing demand, interest checking, savings and money market accounts. At March 31, 2016, such deposits totaled $11.0 billion and represented 71% of the Bank's total deposits. These core deposits are normally less volatile, often with customer relationships tied to other products offered by the Company promoting long-standing relationships and stable funding sources.

Customer deposit balances may decrease if interest rates increase significantly or if corporate customers move funds from the Bank generally. In order to address the Bank’s liquidity risk as deposit balances may fluctuate, the Bank maintains adequate levels of available liquidity.

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The following table provides a summary of the Bank’s core deposits at the dates indicated:

	March 31,		December 31,
	2016		2015
	(In thousands)
Core Deposits:
Noninterest-bearing demand	$	6,139,963	$	6,171,455
Interest checking	921,189		874,349
Money market deposits	3,144,843		2,782,974
Savings deposits	764,323		742,795
Total core deposits	$	10,970,318	$	10,571,573

Our liquidity policy establishes various liquidity guidelines for the Bank. The policy includes guidelines for On-Balance Sheet Liquidity (a measurement of primary liquidity to total deposits plus borrowings), Coverage and Crisis Coverage Ratios (measurements of liquid assets to expected short-term liquidity required for the loan and deposit portfolios under normal and stressed conditions), Loan to Funding Ratio (measurement of gross loans net of fees divided by deposits plus FHLB borrowings), Wholesale Funding Ratio (measurement of wholesale funding divided by interest-earning assets), and other guidelines developed for measuring and maintaining liquidity. As of March 31, 2016, we were in compliance with all liquidity guidelines established in the liquidity policy.

We use brokered deposits, the availability of which is uncertain and subject to competitive market forces, for liquidity management purposes. At March 31, 2016, brokered deposits totaled $1.2 billion, consisting of $165.5 million of brokered time deposits, $985.8 million of non-maturity brokered sweep accounts, and $15.2 million of other miscellaneous brokered deposits. At December 31, 2015, brokered deposits totaled $1.2 billion, consisting of $272.5 million of brokered time deposits, $942.3 million of non-maturity brokered sweep accounts, and $15.3 million of other miscellaneous brokered deposits. The amount of our brokered deposits fluctuates based on market conditions and liquidity and funding needs. Brokered deposits are an effective source of funding due to the large amount of deposits that can be obtained in a short period of time.

Holding Company Liquidity

The primary sources of liquidity for the holding company include dividends from the Bank, intercompany tax payments from the Bank, and our ability to raise capital, issue subordinated debt and secure outside borrowings. Our ability to obtain funds for the payment of dividends to our stockholders and for other cash requirements is largely dependent upon the Bank’s earnings. The Bank is subject to restrictions under certain federal and state laws and regulations that limit its ability to transfer funds to the holding company through intercompany loans, advances or cash dividends.

Dividends paid by California state-chartered banks are regulated by the California Department of Business Oversight (“DBO”) under its general supervisory authority as it relates to a bank’s capital requirements and the FDIC. A state bank may declare a dividend without the approval of the DBO and the FDIC as long as the total dividends declared in a calendar year do not exceed either the retained earnings or the total of net profits for three previous fiscal years less any dividends paid during such period. During the three months endedMarch 31, 2016, PacWest received $64.0 million in dividends from the Bank. Since the Bank had an accumulated deficit of $582.4 million at March 31, 2016, for the foreseeable future, any dividends from the Bank to the holding company will continue to require DBO and FDIC approval.

At March 31, 2016, PacWest had $413.1 million in cash, of which substantially all is on deposit at the Bank. We believe this amount of cash, along with anticipated dividends from the Bank, will be sufficient to fund the holding company’s cash flow needs over the next 12 months. PacWest acts a source of financial strength for the Bank which can also include being a source of liquidity.

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Contractual Obligations

The following table summarizes the known contractual obligations of the Company as of the date indicated:

	March 31, 2016
	Due		Due in		Due in		Due
	Within		One to		Three to		After
	One Year		Three Years		Five Years		Five Years		Total
	(In thousands)
Time deposits(1)	$	3,251,098	$	218,515	$	15,746	$	97	$	3,485,456
Overnight FHLB advance	550,000		—		—		—		550,000
Long-term debt obligations(1)	791		522		87		541,123		542,523
Contractual interest(2)	5,887		2,507		605		5		9,004
Operating lease obligations	29,450		50,008		37,750		44,552		161,760
Other contractual obligations	19,572		19,290		12,563		23,748		75,173
Total	$	3,856,798	$	290,842	$	66,751	$	609,525	$	4,823,916

_______________________________________

(1) Excludes purchase accounting fair value adjustments.

(2) Excludes interest on subordinated debentures as these instruments are variable rate.

Long-term debt obligations include subordinated debentures. Debt obligations are also discussed in Note 7, Borrowings and Subordinated Debentures, in the Notes to Condensed Consolidated Financial Statements (Unaudited) contained in “Item 1. Condensed Consolidated Financial Statements (Unaudited).” Operating lease obligations are discussed in the Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2015. The other contractual obligations relate to our minimum liability associated with our data and item processing contract with a third-party provider, commitments to contribute capital to investments in low income housing project partnerships and private equity funds, and commitments under deferred compensation arrangements.

We believe that we will be able to meet our contractual obligations as they come due through the maintenance of adequate cash levels. We expect to maintain adequate cash levels through profitability, loan and securities repayment and maturity activity, and continued deposit gathering activities. We believe we have in place various borrowing mechanisms for both short-term and long-term liquidity needs.

Off-Balance Sheet Arrangements

Our obligations also include off-balance sheet arrangements consisting of loan and lease-related commitments, of which only a portion is expected to be funded. At March 31, 2016, our loan and lease-related commitments, including standby letters of credit, totaled $4.0 billion. The commitments, which may result in funded loans and leases, increase our profitability through net interest income when drawn. We manage our overall liquidity taking into consideration funded and unfunded commitments as a percentage of our liquidity sources. Our liquidity sources have been and are expected to be sufficient to meet the cash requirements of our lending activities.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

This analysis should be read in conjunction with text under the caption "Quantitative and Qualitative Disclosures About Market Risk" in our Annual Report on Form 10-K for the year ended December 31, 2015, which text is incorporated herein by reference. Our analysis of market risk and market-sensitive financial information contains forward-looking statements and is subject to the disclosure at the beginning of Item 2 regarding such forward-looking information.

Market Risk - Foreign Currency Exchange

We enter into foreign exchange contracts with our clients and counterparty banks primarily for the purpose of offsetting or hedging clients' transaction and economic exposures arising out of commercial transactions. We have experienced and will continue to experience fluctuations in our net income as a result of transaction gains or losses related to revaluing certain asset and liability balances that are denominated in currencies other than the U.S. Dollar. We recognized foreign currency gains of $0.6 million and $2.6 million for the three months ended March 31, 2016 and 2015. In June 2015, we hedged our Euro-denominated subordinated debentures with a cross currency swap to reduce the related foreign currency translation volatility.

Asset/Liability Management and Interest Rate Sensitivity

Interest Rate Risk

We measure our interest rate risk position, or "IRR", on at least a quarterly basis using two methods: (i) net interest income simulation analysis; and (ii) market value of equity modeling. The Executive ALM Committee and the Board Asset Liability Management Committee review the results of these analyses quarterly. If hypothetical changes to interest rates cause changes to our simulated net present value of equity and/or net interest income outside our pre‑established limits, we may adjust our asset and liability mix in an effort to bring our interest rate risk exposure within our established limits.

We evaluated the results of our net interest income simulation ("NII simulation model") and market value of equity models ("MVE model") prepared as of March 31, 2016, the results of which are presented below. Our net interest income simulation indicates that our balance sheet is asset sensitive. An asset sensitive profile would suggest that a sudden sustained increase in rates would result in an increase in our estimated net interest income and market value of equity, while a liability sensitive profile would suggest that these amounts would decrease. In general, we view the net interest income model results as more relevant to our current operating profile and manage our balance sheet giving priority to this information.

Net Interest Income Simulation

We used a NII simulation model to measure the estimated changes in net interest income that would result over the next 12 months from immediate and sustained changes in interest rates as of March 31, 2016. This model is an interest rate risk management tool and the results are not necessarily an indication of our future net interest income. This model has inherent limitations and these results are based on a given set of rate changes and assumptions at one point in time. We have assumed no growth in either our total interest‑sensitive assets or liabilities over the next 12 months, therefore the results reflect an interest rate shock to a static balance sheet.

This analysis calculates the difference between net interest income forecasted using both increasing and decreasing interest rate scenarios using the forward yield curve at March 31, 2016. In order to arrive at the base case, we extend our balance sheet at March 31, 2016 one year and reprice any assets and liabilities that would contractually reprice or mature during that period using the products’ pricing as of March 31, 2016. Based on such repricing, we calculate an estimated net interest income and net interest margin.

The repricing relationship for each of our assets and liabilities includes many assumptions. For example, the substantial majority of our loans are variable‑rate, which are assumed to reprice in accordance with their contractual terms. Some loans and investment vehicles include the opportunity of prepayment (imbedded options) and the simulation model uses prepayment assumptions to estimate these prepayments and reinvest these proceeds at current simulated yields. Our deposit products reprice at our discretion and are assumed to reprice more slowly in a rising or declining interest rate environment and usually reprice at a rate less than the change in market rates. The effects of certain balance sheet attributes, such as fixed‑rate loans, variable‑rate loans that have reached their floors, and the volume of noninterest‑bearing deposits as a percentage of earning assets, impact our assumptions and consequently the results of our NII simulation model. Changes that could vary significantly from our assumptions include loan and deposit growth or contraction, changes in the mix of our earning assets or funding sources, and future asset/liability management decisions, all of which may have significant effects on our net interest income.

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The following table presents as of March 31, 2016, forecasted net interest income and net interest margin for the next 12 months using a base market interest rate and the estimated change to the base scenario given immediate and sustained parallel upward and downward movements in interest rates of 100, 200 and 300 basis points:

	Estimated				Estimated
March 31, 2016	Net Interest		Percentage	Estimated	Net Interest
Interest Rate Scenario:	Income		Change	Net Interest	Margin Change
	(Tax Equivalent)		From Base	Margin	From Base
	(Dollars in millions)
Up 300 basis points	$	1,096.6	17.6%	6.02%	0.89%
Up 200 basis points	$	1,051.3	12.7%	5.77%	0.64%
Up 100 basis points	$	964.5	3.4%	5.30%	0.17%
BASE CASE	$	932.5	—	5.13%	—
Down 100 basis points	$	921.3	(1.2)%	5.07%	(0.06)%
Down 200 basis points	$	919.3	(1.4)%	5.06%	(0.07)%
Down 300 basis points	$	918.4	(1.5)%	5.05%	(0.08)%

Total base case year 1 tax equivalent net interest income decreased to $932.5 million at March 31, 2016 from $962.4 million at December 31, 2015 due to: (1) the decrease in loan portfolio volume at March 31, 2016, which resulted primarily from the sale of $160 million of equipment finance leases during the period; and (2) the decrease in the forward yield curve, which results in lower projected interest income for our variable-rate loans.

In addition to parallel interest rate shock scenarios, we also model various alternative rate vectors that are viewed as more likely to occur in a typical monetary policy tightening cycle. One such scenario provides for market rates to increase during the next three months in accordance with the forward yield curve and thereafter to increase by 25 basis points every three months. The expected first year NII under this alternative rising rate scenario would be approximately 1.4% higher than the base case.

Although $10.8 billion of the $14.5 billion of total loans in the portfolio have variable interest rate terms, only $5.2 billion of those variable-rate loans would immediately reprice at March 31, 2016. Of the remaining variable-rate loans, $5.6 billion would not immediately reprice because the loans' fully-indexed rates are below their floor rates.

Of the $5.6 billion of loans at their floors, the fully-indexed rates would rise off of the floors and reprice as follows:

March 31, 2016
		Rate
Cumulative		Increase
Amount of		Needed to
Loans		Reprice
(Dollars in millions)
$	4,356.5	100 bps
$	4,730.2	200 bps
$	4,855.4	300 bps

Additionally, certain variable-rate hybrid ARM loans do not immediately reprice because the loans contain an initial fixed-rate period before they become adjustable. The cumulative amounts of hybrid ARM loans that would switch from being fixed-rate to variable-rate because the initial fixed-rate term would expire was approximately $169.1 million, $388.1 million, and $684.7 million in the next one, two, and three years.

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Market Value of Equity

We measure the impact of market interest rate changes on the net present value of estimated cash flows from our assets, liabilities and off‑balance sheet items, defined as the market value of equity, using our MVE model. This simulation model assesses the changes in the market value of our interest‑sensitive financial instruments that would occur in response to an instantaneous and sustained increase or decrease in market interest rates of 100, 200, and 300 basis points. This analysis assigns significant value to our noninterest-bearing deposit balances. The projections include various assumptions regarding cash flows and interest rates and are by their nature forward‑looking and inherently uncertain.

The MVE model is an interest rate risk management tool and the results are not necessarily an indication of our actual future results. Actual results may vary significantly from the results suggested by the market value of equity table. Loan prepayments and deposit attrition, changes in the mix of our earning assets or funding sources, and future asset/liability management decisions, among others, may vary significantly from our assumptions. The base case is determined by applying various current market discount rates to the estimated cash flows from the different types of assets, liabilities and off‑balance sheet items existing at March 31, 2016.

The following table shows the projected change in the market value of equity for the set of rate scenarios presented as of March 31, 2016:

										Ratio of
	Estimated		Dollar			Percentage		Percentage		Estimated
March 31, 2016	Market		Change			Change		of Total		Market Value
Interest Rate Scenario:	Value		From Base			From Base		Assets		to Book Value
	(Dollars in millions)
Up 300 basis points	$	5,139.3	$	(0.9	)	—	%	24.4	%	115.3	%
Up 200 basis points	$	5,143.9	$	3.7		0.1	%	24.5	%	115.4	%
Up 100 basis points	$	5,143.3	$	3.1		0.1	%	24.5	%	115.4	%
BASE CASE	$	5,140.2	$	—		—	%	24.4	%	115.3	%
Down 100 basis points	$	5,154.0	$	13.8		0.3	%	24.5	%	115.6	%
Down 200 basis points	$	5,122.5	$	(17.7	)	(0.3	)%	24.4	%	114.9	%
Down 300 basis points	$	5,066.7	$	(73.5	)	(1.4	)%	24.1	%	113.7	%

In comparing the March 31, 2016 simulation results to December 31, 2015, our base case market value of equity has decreased $81.6 million while our overall profile has remained relatively unchanged. The decrease in base case market value of equity was due primarily to an $84.3 million decrease in the net present value of loans and a $72.4 million increase in the fair value of deposits, offset partially by the increase in the fair value of investment securities and the increase in retained earnings during the quarter. The net present value of loans declined because of an increase in the discount rate used to value loans, which is derived from the prevailing spread of high yield bonds. The fair value of deposits increased because of the decrease in the forward yield curve, which resulted in a higher fair value for the Company's non-maturity deposits The rate sensitivity profile of the balance sheet remained mostly unchanged during the quarter.

ITEM 4. CONTROLS AND PROCEDURES

As of the end of the period covered by this report, an evaluation was carried out by the Company's management, with the participation of the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the Company's disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, these disclosure controls and procedures were effective.

There have been no changes in the Company's internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934) during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The information set forth in Note 8. Commitments and Contingencies in the Notes to Condensed Consolidated Financial Statements (Unaudited) is incorporated herein by reference.

In addition, in the ordinary course of our business, we are party to various legal actions, which we believe are incidental to the operation of our business. The outcome of such legal actions and the timing of ultimate resolution are inherently difficult to predict. In the opinion of management, based upon information currently available to us, any resulting liability, in addition to amounts already accrued, and taking into consideration insurance which may be applicable, would not have a material adverse effect on the Company’s financial statements or operations.

ITEM 1A. RISK FACTORS

For information regarding factors that could affect the Company's results of operations, financial condition and liquidity, see the risk factors disclosed in the "Risk Factors" section of our Annual Report on Form 10-K for the year ended December 31, 2015. See also "Forward-Looking Information" disclosed in Part I, Item 2 of this quarterly report on Form 10-Q.

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

The following table presents stock purchases made during the first quarter of 2016:

	Total
	Number of	Average
	Shares	Price Paid
Purchase Dates	Purchased(1)	Per Share
January 1, 2016 - January 31, 2016	—	$	—
February 1, 2016 - February 29, 2016	4,729	29.88
March 1, 2016 - March 31, 2016	—	—
Total	4,729	$	29.88

__________________________

(1) Shares repurchased pursuant to net settlement by employees and directors, in satisfaction of income tax withholding obligations incurred through the vesting of Company stock awards.

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ITEM 6. INDEX TO EXHIBITS

Exhibit Number	Description
2.3	Agreement and Plan of Merger dated March 1, 2015 between PacWest Bancorp and Square 1 Financial, Inc. (Exhibit 2.1 to Form 8-K filed on March 5, 2015 and incorporated herein by this reference).
3.1	Certificate of Incorporation, as amended, of PacWest Bancorp, a Delaware corporation, dated April 22, 2008 (Exhibit 3.1 to Form 8-K filed on May 14, 2008 and incorporated herein by this reference).
3.2	Certificate of Amendment of Certificate of Incorporation of PacWest Bancorp, a Delaware Corporation, dated May 14, 2010 (Exhibit 3.1 to Form 8-K filed on May 14, 2010 and incorporated herein by this reference).
3.5	Amended and Restated Bylaws of PacWest Bancorp, a Delaware corporation, dated November 5, 2014 (Exhibit 3.5 to Form 10-Q filed on November 7, 2014 and incorporated herein by this reference).
31.1	Section 302 Certification of Chief Executive Officer. *
31.2	Section 302 Certification of Chief Financial Officer. *
32.1	Section 906 Certification of Chief Executive Officer. *
32.2	Section 906 Certification of Chief Financial Officer. *
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Condensed Consolidated Balance Sheets as of March 31, 2016 and December 31, 2015, (ii) the Condensed Consolidated Statements of Earnings for the three months ended March 31, 2016, December 31, 2015 and March 31, 2015, (iii) the Condensed Consolidated Statements of Comprehensive Income for the three months ended March 31, 2016, December 31, 2015 and March 31, 2015, (iv) the Condensed Consolidated Statement of Changes in Stockholders' Equity for the three months ended March 31, 2016, (v) the Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2016 and 2015, and (vi) the Notes to Condensed Consolidated Financial Statements. *

_____________________

* Filed herewith.

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Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	PACWEST BANCORP
May 9, 2016	/s/ Patrick J. Rusnak
	Patrick J. Rusnak
	Executive Vice President and Chief Financial Officer

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EX-31.1

Exhibit 31.1

Certification

Pursuant to Section 302 of the

Sarbanes-Oxley Act of 2002

I, Matthew P. Wagner, certify that:

1. I have reviewed this report on Form 10-Q for the quarterly period ended March 31, 2016 of PacWest Bancorp;

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

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

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

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

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

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

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

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

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

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

Date:	May 9, 2016	/s/ Matthew P. Wagner
		Matthew P. Wagner Chief Executive Officer

EX-31.2

Exhibit 31.2

Certification

Pursuant to Section 302 of the

Sarbanes-Oxley Act of 2002

I, Patrick J. Rusnak, certify that:

1. I have reviewed this report on Form 10-Q for the quarterly period ended March 31, 2016 of PacWest Bancorp;

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

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

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

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

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

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

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

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

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

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

Date:	May 9, 2016	/s/ Patrick J. Rusnak
		Patrick J. Rusnak Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted

Pursuant to Section 906 of the

Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350), the undersigned officer of PacWest Bancorp (the “Company”) hereby certifies that the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2016 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 9, 2016	/s/ Matthew P. Wagner
		Matthew P. Wagner Chief Executive Officer

The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) and is not being filed as part of the Report or as a separate disclosure document.

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted

Pursuant to Section 906 of the

Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350), the undersigned officer of PacWest Bancorp (the “Company”) hereby certifies that the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2016 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	May 9, 2016	/s/ Patrick J. Rusnak
		Patrick J. Rusnak Executive Vice President and Chief Financial Officer

The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) and is not being filed as part of the Report or as a separate disclosure document.

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 27, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	PACWEST BANCORP
Entity Central Index Key	0001102112
Document Period End Date	Mar. 31, 2016
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		120,208,695

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets [Abstract]
Cash and due from banks	$ 161,977	$ 161,020
Interest-earning deposits in financial institutions	357,541	235,466
Total cash and cash equivalents	519,518	396,486
Securities available-for-sale, at fair value	3,240,586	3,559,437
Federal Home Loan Bank stock, at cost	17,250	19,710
Total investment securities	3,257,836	3,579,147
Gross loans and leases	14,542,522	14,528,165
Deferred fees and costs		(49,911)
Allowance for loan and lease losses	130,361	115,111
Total loans and leases, net	14,353,156	14,363,143
Equipment leased to others under operating leases	205,163	197,452
Premises and equipment, net	39,713	39,197
Foreclosed assets, net	18,310	22,120
Goodwill	2,175,791	2,176,291
Core deposit and customer relationship intangibles, net	48,137	53,220
Deferred tax asset, net	91,126	126,389
Other assets	322,259	335,045
Total assets	21,031,009	21,288,490
Liabilities and Equity [Abstract]
Noninterest-bearing deposits	6,139,963	6,171,455
Interest-bearing deposits	9,301,412	9,494,727
Total deposits	15,441,375	15,666,182
Borrowings	551,401	621,914
Subordinated debentures	438,723	436,000
Accrued interest payable and other liabilities	142,918	166,703
Total liabilities	16,574,417	16,890,799
Commitments and contingencies (Note 8)	0	0
Preferred stock ($0.01 par value; 5,000,000 shares authorized; none issued and outstanding)	0	0
Additional paid-in capital	4,353,706	4,405,775
Retained earnings	104,363	13,907
Common stock ($0.01 par value, 200,000,000 shares authorized at March 31, 2016 and December 31, 2015; 123,153,983 and 122,791,729 shares issued, respectively, including 1,562,557 and 1,211,951 shares of unvested restricted stock, respectively)	1,232	1,228
Treasury stock, at cost (1,382,731 and 1,378,002 shares at March 31, 2016 and December 31, 2015)	(51,188)	(51,047)
Accumulated other comprehensive income, net	48,479	27,828
Total stockholders' equity	4,456,592	4,397,691
Total liabilities and stockholders' equity	$ 21,031,009	$ 21,288,490

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Preferred stock par value (usd per share)	$ 0.01	$ 0.01
Preferred stock outstanding (shares)	5,000,000	5,000,000
Common Stock par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	200,000,000	200,000,000
Common stock issued (shares)	123,153,983	122,791,729
Unvested restricted shares (shares)	1,562,557	1,211,951
Treasury Stock (shares)	1,382,731	1,378,002

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Interest income:
Loans and leases	$ 236,375	$ 219,677	$ 202,097
Investment securities	22,547	23,648	12,195
Deposits in financial institutions	308	172	22
Total interest income	259,230	243,497	214,314
Interest expense:
Deposits	9,073	9,391	10,479
Borrowings	581	159	235
Subordinated debentures	4,982	4,748	4,525
Total interest expense	14,636	14,298	15,239
Net interest income	244,594	229,199	199,075
Provision for credit losses	20,140	13,772	16,434
Net interest income after provision for credit losses	224,454	215,427	182,641
Non-interest income:
Service charges on deposit accounts	3,856	3,901	2,574
Other commissions and fees	11,489	12,691	5,396
Leased equipment income	8,244	7,791	5,382
Gain on sale of loans and leases	245	183	0
Gain on sale of securities	8,110	0	3,275
FDIC loss sharing expense, net	(2,415)	(4,291)	(4,399)
Other income	5,010	7,783	8,643
Total noninterest income	34,539	28,058	20,871
Non-interest expense:
Compensation	61,065	58,992	47,737
Occupancy	12,632	12,194	10,600
Data processing	5,904	5,585	4,308
Other professional services	3,572	3,811	3,221
Insurance and assessments	4,965	5,450	3,025
Intangible asset amortization	4,746	4,910	1,501
Leased equipment depreciation	5,024	4,235	3,103
Foreclosed Real Estate (Income) Expense	(561)	(3,185)	336
Acquisition, integration and reorganization costs	200	17,600	2,000
Other expense	13,141	12,672	8,529
Total noninterest expense	110,688	122,264	84,360
Earnings before income taxes	148,305	121,221	119,152
Income tax expense	(57,849)	(49,380)	(46,073)
Net earnings	$ 90,456	$ 71,841	$ 73,079
Earnings Per Share, Basic [Abstract]
Net earnings (usd per share)	$ 0.74	$ 0.60	$ 0.71
Earnings Per Share, Diluted [Abstract]
Net earnings (usd per share)	0.74	0.60	0.71
Dividends [Abstract]
Dividends declared per share (usd per share)	$ 0.50	$ 0.50	$ 0.5

XML

Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings		$ 90,456	$ 71,841	$ 73,079
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized holding (losses) gains on securities available-for-sale		43,093	5,874	7,363
Income tax benefit (expense) related to unrealized holding (losses) gains arising during the period		(17,655)	(2,505)	(3,105)
Unrealized holding losses (gains) on securities available-for-sale, net of tax		25,438	3,369	4,258
Reclassification adjustment for losses (gains) included in net earnings	[1]	(8,110)	0	(3,275)
Income tax (benefit) expense related to reclassification adjustment		3,323	0	1,381
Reclassification adjustment for losses (gains) included in net earnings, net of tax		(4,787)	0	(1,894)
Other comprehensive (loss) income, net of tax		20,651	3,369	2,364
Comprehensive income		$ 111,107	$ 75,210	$ 75,443

[1] Entire amounts are recognized in "Gain on sale of securities" on the Condensed Consolidated Statements of Earnings.

XML

Consolidated Statement of Shareholders' Equity - 3 months ended Mar. 31, 2016 - USD ($)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2015	$ 4,397,691,000	$ 1,228,000	$ 4,405,775,000	$ 13,907,000	$ (51,047,000)	$ 27,828,000
Shares outstanding, beginning balance (shares) at Dec. 31, 2015		121,413,727
Stockholders' Equity Disclosure [Rollforward]
Net earnings	90,456,000			90,456,000
Other comprehensive loss-net unrealized loss on securities available-for-sale, net of tax	20,651,000	$ 0	0	0	0	20,651,000
Restricted stock awarded and earned stock compensation, net of shares forfeited	5,046,000	$ 4,000	5,042,000	0	0	0
Restricted stock awarded and earned compensation, net of shares forfeited (shares)		362,254
Restricted stock surrendered	(141,000)	$ 0	0	0	(141,000)	0
Restricted stock surrendered (shares)		(4,729)
Tax effect from vesting of restricted stock	3,795,000	$ 0	3,795,000	0	0	0
Cash dividends paid	(60,906,000)	0	(60,906,000)	0	0	0
Ending Balance at Mar. 31, 2016	$ 4,456,592,000	$ 1,232,000	$ 4,353,706,000	$ 104,363,000	$ (51,188,000)	$ 48,479,000
Shares outstanding, ending balance (shares) at Mar. 31, 2016		121,771,252

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net earnings	$ 90,456		$ 73,079
Depreciation and amortization	22,488		10,648
Provision for credit losses	20,140	$ 13,772	16,434
(Gain) loss on sale of foreclosed assets	(504)		106
Provision for losses on foreclosed assets	0		124
Gain on sale of loans and leases	(245)	(183)	0
Gain on sale of premises and equipment	(6)		(3)
Gain on sale of securities	(8,110)		(3,275)
Unrealized gain on derivatives and foreign currencies, net	(250)		(2,715)
Earned stock compensation	5,046		3,112
Gain (Loss) on Sale of Capital Leases, Net	720		0
Tax effect included in stockholders' equity of restricted stock vesting	(3,795)		0
Decrease in accrued and deferred income taxes, net	24,726		38,722
Decrease in other assets	5,214		19,356
Decrease in accrued interest payable and other liabilities	(23,722)		(29,102)
Net cash provided by operating activities	132,158		126,486
Net Cash Provided by (Used in) Investing Activities [Abstract]
Net increase in loan and leases	(170,465)		(403,438)
Proceeds from sales of loans and leases	26,903		0
Proceeds from maturities and paydowns	61,626		27,547
Proceeds from sales	343,031		144,945
Purchases	(52,236)		(196,568)
Net redemptions of Federal Home Loan Bank stock	2,460		11,704
Proceeds from sales of foreclosed assets	4,443		7,945
Purchases of premises and equipment, net	(2,896)		(1,490)
Proceeds from sales of premises and equipment	6		29
Proceeds from Sale and Collection of Lease Receivables	138,809		0
Proceeds from Life Insurance Policies	1,853		0
Net increase of equipment leased to others under operating leases	(12,300)		0
Net cash provided by (used in) investing activities	341,234		(409,326)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Noninterest-bearing	(31,310)		97,224
Interest-bearing	(193,315)		80,914
Net (decrease) increase in borrowings	(68,483)		234,754
Restricted stock surrendered	(141)		0
Tax effect included in stockholders' equity of restricted vesting stock	3,795		0
Cash dividends paid	(60,906)		(51,424)
Net cash (used in) provided by financing activities	(350,360)		361,468
Net increase in cash and cash equivalents	123,032		78,628
Cash and cash equivalents at beginning of period	396,486		313,226
Cash and cash equivalents at end of period	519,518	$ 396,486	391,854
Noncash transactions from investing activities:
Cash paid for interest	15,080		12,334
Income Taxes Paid, Net	15,773		(7,695)
Loans transferred to foreclosed assets	$ 129		$ 394

XML

Organization

3 Months Ended

Mar. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

Organization    

PacWest Bancorp is a bank holding company registered under the Bank Holding Company Act of 1956, as amended. Our principal business is to serve as the holding company for our wholly-owned banking subsidiary, Pacific Western Bank, which we refer to as “Pacific Western” or the “Bank.” When we say “we,” “our,” or the “Company,” we mean PacWest Bancorp together with its subsidiaries on a consolidated basis. When we refer to “PacWest” or to the holding company, we are referring to PacWest Bancorp, the parent company, on a stand‑alone basis. As of March 31, 2016, the Company had total assets of $21.0 billion, gross loans and leases of $14.5 billion, total deposits of $15.4 billion and total stockholders' equity of $4.5 billion.

We are focused on relationship-based business banking to small, middle-market and venture-backed businesses nationwide. The Bank offers a broad range of loan and lease and deposit products and services through 79 full-service branches located throughout the State of California, one branch located in Durham, North Carolina, and several loan production offices located in cities across the country. We provide commercial banking services, including real estate, construction, and commercial loans and leases, and comprehensive deposit and treasury management services to small and middle market businesses. Pacific Western offers products and services through its CapitalSource and Square 1 Bank divisions. CapitalSource focuses on providing cash flow, asset-based, equipment and real estate loans and treasury management services to established middle-market businesses on a national basis. Square 1 Bank focuses on providing a comprehensive suite of financial products tailored to service entrepreneurial businesses and their venture capital and private equity investors, with offices located in key innovation hubs across the United States. In addition, we provide investment advisory and asset management services to select clients through Square 1 Asset Management, Inc., a wholly-owned subsidiary of the Bank and a SEC-registered investment adviser. When we refer to "CapitalSource Inc." we are referring to the company acquired on April 7, 2014 and when we refer to the "CapitalSource Division" we are referring to a division of Pacific Western Bank that specializes in middle-market lending on a nationwide basis.

We generate our revenue primarily from interest received on loans and leases and, to a lesser extent, from interest received on investment securities, and fees received in connection with deposit services, extending credit and other services offered, including foreign exchange services. Our major operating expenses are compensation, occupancy, general operating expenses, and the interest paid by the Bank on deposits and borrowings.

We have completed 28 acquisitions from May 1, 2000 through March 31, 2016, including the acquisition of Square 1 Financial, Inc. ("Square 1") on October 6, 2015. Our acquisitions have been accounted for using the acquisition method of accounting and, accordingly, the operating results of the acquired entities have been included in the consolidated financial statements from their respective acquisition dates. See Note 2. Acquisitions, for more information about the Square 1 acquisition.

On March 31, 2016, we sold our Pacific Western Equipment Finance ("PWEF") leasing unit in Midvale, Utah, including approximately $139 million of outstanding lease balances.

Significant Accounting Policies

Except as discussed below, our accounting policies are described in Note 1, Nature of Operations and Summary of Significant Accounting Policies, of our audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 as filed with the Securities and Exchange Commission ("Form 10-K").

Basis of Presentation

Our interim consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K.

Use of Estimates

We have made a number of estimates and assumptions related to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting period to prepare these condensed consolidated financial statements in conformity with U.S. GAAP. Material estimates subject to change in the near term include, among other items, the allowance for credit losses, the carrying value and useful lives of intangible assets, the carrying value of the FDIC loss sharing asset, the realization of deferred tax assets, and the fair value estimates of assets acquired and liabilities assumed in acquisitions. These estimates may be adjusted as more current information becomes available, and any adjustment may be significant.

As described in Note 2, Acquisitions, the acquired assets and liabilities of Square 1 were measured at their estimated fair values. We made significant estimates and exercised significant judgment in estimating fair values and accounting for such acquired assets and assumed liabilities.

Reclassifications

Certain prior period amounts have been reclassified to conform to the current period's presentation format. The operating segments previously reported have been aggregated to one segment to conform to the current period's presentation format.

XML

Acquisitions

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Acquisitions

Acquisitions    

Square 1 Financial, Inc. Acquisition

We acquired Square 1 Financial, Inc. ("Square 1") on October 6, 2015. As part of the acquisition, Square 1 Bank, a wholly-owned subsidiary of Square 1, merged with and into Pacific Western. At closing, we formed the Square 1 Bank Division of the Bank which focuses on providing a comprehensive suite of financial services to entrepreneurial businesses and their venture capital and private equity investors nationwide.

We completed this acquisition to increase our core deposits, expand our nationwide lending platform, and increase our presence in the technology and life-sciences credit markets. The Square 1 acquisition has been accounted for under the acquisition method of accounting. We acquired $4.6 billion of assets and assumed $3.8 billion of liabilities upon closing of the acquisition. The assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the acquisition date. We made significant estimates and exercised significant judgment in estimating fair values and accounting for such acquired assets and liabilities. Such fair values are preliminary estimates and are subject to adjustment for up to one year after the acquisition date or when additional information relative to the closing date fair values becomes available and such information is considered final, whichever is earlier. The fair value of the acquired net tax assets, once the final tax returns have been filed, may change. The application of the acquisition method of accounting resulted in goodwill of $447.9 million. All of the recognized goodwill is expected to be non-deductible for tax purposes.

Acquisition-Related Charges

The costs shown for the three months ended March 31, 2016 and December 31, 2015 relate to the Square 1 acquisition and ongoing systems integration. The following table presents the components of acquisition, integration and reorganization costs for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Acquisition, Integration and Reorganization Costs:
Severance and employee-related	$	—	$	10,500	$	—
System conversion and integration	200		3,802		—
Asset write-downs, lease terminations and
other facilities-related	—		125		—
Investment banking deal costs	—		—		1,050
Other (legal, accounting, insurance, consulting)	—		3,173		950
Total acquisition, integration and
reorganization costs	$	200	$	17,600	$	2,000

XML

Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure

Goodwill and Other Intangible Assets

Goodwill arises from the acquisition method of accounting for business combinations and represents the excess of the purchase price over the fair value of the net assets and other identifiable intangible assets acquired. Our intangible assets with definite lives are core deposit intangibles ("CDI") and customer relationship intangibles ("CRI").

Goodwill and other intangible assets deemed to have indefinite lives generated from business combinations are not subject to amortization and are instead tested for impairment no less than annually. Impairment exists when the carrying value of goodwill exceeds its implied fair value. An impairment loss would be recognized in an amount equal to that excess and would be included in “Noninterest expense” in the condensed consolidated statements of earnings.

CDI and CRI are amortized over their respective estimated useful lives and reviewed for impairment at least quarterly. The amortization expense represents the estimated decline in the value of the underlying deposits or loan and lease customers acquired. The weighted average amortization period remaining for all of our CDI and CRI as of March 31, 2016 is 6.0 years. The aggregate CDI and CRI amortization expense is expected to be $16.1 million for 2016. The estimated aggregate amortization expense related to these intangible assets for each of the next five years is $11.5 million for 2017, $8.8 million for 2018, $6.7 million for 2019, $4.7 million for 2020, and $3.0 million for 2021.

The following table presents the changes in the carrying amount of goodwill for the period indicated:    

	Goodwill
	(In thousands)
Balance, December 31, 2015	$	2,176,291
Reduction due to sale of PWEF leasing unit	(500		)
Balance, March 31, 2016	$	2,175,791

Through the sale of the PWEF leasing unit, $500,000 of goodwill was allocated to this business group; such goodwill reduction is included in the loss on sale of the PWEF leasing unit and included in "Other income" in the condensed consolidated statement of earnings.

The following table presents the changes in CDI and CRI and the related accumulated amortization for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Gross Amount of CDI and CRI:
Balance, beginning of period	$	95,524		$	53,090		$	53,090
Additions	—			45,426			—
Fully amortized portion	—			(2,992		)	—
Reduction due to sale of PWEF leasing unit	(1,700		)	—			—
Balance, end of period	93,824			95,524			53,090
Accumulated Amortization:
Balance, beginning of period	(42,304		)	(40,386		)	(35,886		)
Amortization	(4,746		)	(4,910		)	(1,501		)
Fully amortized portion	—			2,992			—
Reduction due to sale of PWEF leasing unit	1,363			—			—
Balance, end of period	(45,687		)	(42,304		)	(37,387		)
Net CDI and CRI, end of period	$	48,137		$	53,220		$	15,703

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Investment Securities

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities     

Securities Available-for-Sale

The following table presents amortized cost, gross unrealized gains and losses, and carrying values of securities available-for-sale as of the dates indicated:

	March 31, 2016									December 31, 2015
			Gross		Gross							Gross		Gross
	Amortized		Unrealized		Unrealized			Fair		Amortized		Unrealized		Unrealized			Fair
Security Type:	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
	(In thousands)
Residential mortgage-backed securities:
Government agency and
government-sponsored enterprise
pass-through securities	$	642,233	$	12,865	$	(1,233	)	$	653,865	$	759,881	$	12,075	$	(4,159	)	$	767,797
Government agency and
government-sponsored enterprise
collateralized mortgage obligations	431,456		12,515		(239		)	443,732		486,065		3,584		(3,410		)	486,239
Covered private label collateralized
mortgage obligations	23,026		5,064		(227		)	27,863		24,113		5,794		(125		)	29,782
Other private label collateralized
mortgage obligations	108,019		246		(883		)	107,382		115,952		43		(981		)	115,014
Municipal securities	1,457,795		59,886		(89		)	1,517,592		1,508,968		39,435		(1,072		)	1,547,331
US Treasury securities	—		—		—			—		70,196		—		(816		)	69,380
Corporate debt securities	47,269		303		(2,089		)	45,483		49,047		327		(950		)	48,424
Collateralized loan obligations	142,637		42		(3,107		)	139,572		133,192		128		(1,131		)	132,189
SBA securities	201,934		947		(207		)	202,674		211,946		41		(830		)	211,157
Government-sponsored enterprise debt
securities	—		—		—			—		36,302		611		—			36,913
Asset-backed and other securities	104,182		135		(1,894		)	102,423		116,723		119		(1,631		)	115,211
Total	$	3,158,551	$	92,003	$	(9,968	)	$	3,240,586	$	3,512,385	$	62,157	$	(15,105	)	$	3,559,437

As of March 31, 2016, securities available‑for‑sale with a carrying value of $414.6 million were pledged as collateral for borrowings, public deposits and other purposes as required by various statutes and agreements.

During the three months endedMarch 31, 2016 and 2015, we purchased $52.2 million and $196.6 million in securities available-for-sale.

During the three months endedMarch 31, 2016, we sold $334.9 million of various securities, primarily government agency and government-sponsored enterprise ("GSE") pass-through securities and collateralized mortgage obligations, U.S. Treasury securities and GSE debt securities, for a gross realized gain of $8.9 million and a gross realized loss of $0.8 million. During the three months endedMarch 31, 2015, we sold $141.7 million of various securities, primarily corporate debt securities and GSE pass-through securities, for a gross realized gain of $3.7 million and a gross realized loss of $0.4 million.

Unrealized Losses on Securities Available-for-Sale

The following tables present the gross unrealized losses and fair values of securities available-for-sale that were in unrealized loss positions, for which other-than-temporary impairments have not been recognized in earnings, as of the dates indicated:

	March 31, 2016
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	196,388	$	(1,135	)	$	9,422	$	(98	)	$	205,810	$	(1,233	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	33,702		(239		)	—		—			33,702		(239		)
Covered private label collateralized
mortgage obligations	1,239		(98		)	849		(129		)	2,088		(227		)
Other private label collateralized
mortgage obligations	59,407		(838		)	1,029		(45		)	60,436		(883		)
Municipal securities	18,108		(55		)	5,496		(34		)	23,604		(89		)
Corporate debt securities	28,180		(2,089		)	—		—			28,180		(2,089		)
Collateralized loan obligations	106,773		(2,121		)	23,355		(986		)	130,128		(3,107		)
SBA securities	87,150		(207		)	—		—			87,150		(207		)
Asset-backed and other securities	64,013		(1,285		)	15,923		(609		)	79,936		(1,894		)
Total	$	594,960	$	(8,067	)	$	56,074	$	(1,901	)	$	651,034	$	(9,968	)

	December 31, 2015
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	391,642	$	(3,893	)	$	9,342	$	(266	)	$	400,984	$	(4,159	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	314,284		(2,769		)	14,230		(641		)	328,514		(3,410		)
Covered private label collateralized
mortgage obligations	1,354		(57		)	568		(68		)	1,922		(125		)
Other private label collateralized
mortgage obligations	92,179		(943		)	1,070		(38		)	93,249		(981		)
Municipal securities	126,892		(1,061		)	531		(11		)	127,423		(1,072		)
US Treasury securities	69,380		(816		)	—		—			69,380		(816		)
Corporate debt securities	29,379		(950		)	—		—			29,379		(950		)
Collateralized loan obligations	100,993		(1,131		)	—		—			100,993		(1,131		)
SBA securities	179,942		(830		)	—		—			179,942		(830		)
Asset-backed and other securities	71,619		(1,182		)	16,091		(449		)	87,710		(1,631		)
Total	$	1,377,664	$	(13,632	)	$	41,832	$	(1,473	)	$	1,419,496	$	(15,105	)

We reviewed the securities that were in a loss position at March 31, 2016, and concluded their unrealized losses were not a result of downgraded credit ratings or other indicators of deterioration of the underlying issuers' ability to repay. Such unrealized losses were a result of the level of market interest rates and pricing changes caused by shifting supply and demand dynamics relative to the types of securities. Accordingly, we determined the securities were temporarily impaired and we did not recognize such impairment in the condensed consolidated statements of earnings. Although we occasionally sell securities for portfolio management purposes, we do not foresee having to sell any temporarily impaired securities strictly for liquidity needs and believe that it is more likely than not we would not be required to sell any temporarily impaired securities before recovery of their amortized cost.

Contractual Maturities of Securities Available-for-Sale

The following table presents the contractual maturities of our available-for-sale securities portfolio based on amortized cost and carrying value as of the date indicated:

	March 31, 2016
	Amortized		Fair
Maturity:	Cost		Value
	(In thousands)
Due in one year or less	$	12,821	$	12,628
Due after one year through five years	216,420		219,110
Due after five years through ten years	603,523		619,214
Due after ten years	2,325,787		2,389,634
Total securities available-for-sale	$	3,158,551	$	3,240,586

Mortgage-backed securities have contractual terms to maturity, but require periodic payments to reduce principal. In addition, expected maturities may differ from contractual maturities because obligors and/or issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

Interest Income on Investment Securities

The following table presents the composition of our interest income on investment securities for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Taxable interest	$	11,396	$	12,730	$	7,473
Non-taxable interest	10,726		10,459		3,894
Dividend income	425		459		828
Total interest income on investment securities	$	22,547	$	23,648	$	12,195

XML

Loans and Leases

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Loans and Leases

Loans and Leases

The Company’s loan and lease portfolio includes originated and purchased loans and leases. Originated and purchased loans and leases for which there was no evidence of credit deterioration at their acquisition date and for which it was probable that all contractually required payments would be collected, are referred to collectively as non-purchased credit impaired loans, or "Non-PCI loans." Purchased loans for which there was, at the acquisition date, evidence of credit deterioration since their origination and for which it was deemed probable that we would be unable to collect all contractually required payments, are referred to as purchased credit impaired loans, or "PCI loans".

Non-PCI loans are carried at the principal amount outstanding, net of deferred fees and costs, and in the case of acquired loans, net of purchase discounts and premiums. Deferred fees and costs and purchase discounts and premiums are recognized as an adjustment to interest income over the contractual life of the loans using the effective interest method or taken into income on an accelerated basis when the related loans are paid off or sold.

PCI loans are accounted for in accordance with ASC Subtopic 310‑30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality". For PCI loans, at the time of acquisition we (i) calculate the contractual amount and timing of undiscounted principal and interest payments (the "undiscounted contractual cash flows") and (ii) estimate the amount and timing of undiscounted expected principal and interest payments (the "undiscounted expected cash flows"). The difference between the undiscounted contractual cash flows and the undiscounted expected cash flows is the nonaccretable difference. The difference between the undiscounted cash flows expected to be collected and the estimated fair value of the acquired loans is the accretable yield. The nonaccretable difference represents an estimate of the loss exposure of principal and interest related to the PCI loan portfolio; such amount is subject to change over time based on the performance of such loans. The carrying value of PCI loans is reduced by payments received, both principal and interest, and increased by the portion of the accretable yield recognized as interest income.

The following table summarizes the composition of our loan and lease portfolio as of the dates indicated:

	March 31, 2016									December 31, 2015
	Non-PCI									Non-PCI
	Loans			PCI						Loans			PCI
	and Leases			Loans			Total			and Leases			Loans			Total
	(In thousands)
Real estate mortgage	$	5,649,282		$	160,122		$	5,809,404		$	5,706,903		$	168,725		$	5,875,628
Real estate construction and land	584,968			2,689			587,657			534,307			2,656			536,963
Commercial	8,021,092			13,513			8,034,605			7,977,067			17,415			7,994,482
Consumer	110,573			283			110,856			120,793			299			121,092
Total gross loans and leases	14,365,915			176,607			14,542,522			14,339,070			189,095			14,528,165
Deferred fees and costs	(58,954		)	(51		)	(59,005		)	(49,861		)	(50		)	(49,911		)
Total loans and leases, net of deferred fees	14,306,961			176,556			14,483,517			14,289,209			189,045			14,478,254
Allowance for loan and lease losses	(120,807		)	(9,554		)	(130,361		)	(105,534		)	(9,577		)	(115,111		)
Total net loans and leases	$	14,186,154		$	167,002		$	14,353,156		$	14,183,675		$	179,468		$	14,363,143

Non‑Purchased Credit Impaired (Non‑PCI) Loans and Leases

The following tables present an aging analysis of our Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	16,655	$	10,638	$	27,293	$	4,525,668	$	4,552,961
Residential	2,187		559		2,746		1,074,590		1,077,336
Total real estate mortgage	18,842		11,197		30,039		5,600,258		5,630,297
Real estate construction and land:
Commercial	—		—		—		305,529		305,529
Residential	—		—		—		269,944		269,944
Total real estate construction and land	—		—		—		575,473		575,473
Commercial:
Cash flow	766		2,013		2,779		3,163,035		3,165,814
Asset-based	4		—		4		2,588,912		2,588,916
Venture capital	9,554		—		9,554		1,493,057		1,502,611
Equipment finance	2,244		2,140		4,384		728,844		733,228
Total commercial	12,568		4,153		16,721		7,973,848		7,990,569
Consumer	30		708		738		109,884		110,622
Total Non-PCI loans and leases	$	31,440	$	16,058	$	47,498	$	14,259,463	$	14,306,961

	December 31, 2015
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	3,947	$	13,075	$	17,022	$	4,534,936	$	4,551,958
Residential	3,391		905		4,296		1,131,809		1,136,105
Total real estate mortgage	7,338		13,980		21,318		5,666,745		5,688,063
Real estate construction and land:
Commercial	—		—		—		343,360		343,360
Residential	—		—		—		184,360		184,360
Total real estate construction and land	—		—		—		527,720		527,720
Commercial:
Cash flow	2,048		1,427		3,475		3,058,793		3,062,268
Asset-based	1		—		1		2,547,532		2,547,533
Venture capital	250		700		950		1,451,477		1,452,427
Equipment finance	359		94		453		889,896		890,349
Total commercial	2,658		2,221		4,879		7,947,698		7,952,577
Consumer	626		1,307		1,933		118,916		120,849
Total Non-PCI loans and leases	$	10,622	$	17,508	$	28,130	$	14,261,079	$	14,289,209

It is the Company's policy to discontinue accruing interest when, in the opinion of management, there is a reasonable doubt as to the collectability of a loan or lease in the normal course of business or when principal or interest payments are past due 90 days or more unless the loan is both well secured and in the process of collection. Interest income on nonaccrual loans is recognized only to the extent cash is received and the principal balance of the loan is deemed collectable.

The following table presents our nonaccrual and performing Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016						December 31, 2015
	Nonaccrual		Performing		Total		Nonaccrual		Performing		Total
	(In thousands)
Real estate mortgage:
Commercial	$	30,357	$	4,522,604	$	4,552,961	$	52,363	$	4,499,595	$	4,551,958
Residential	5,807		1,071,529		1,077,336		4,914		1,131,191		1,136,105
Total real estate mortgage	36,164		5,594,133		5,630,297		57,277		5,630,786		5,688,063
Real estate construction and land:
Commercial	—		305,529		305,529		—		343,360		343,360
Residential	370		269,574		269,944		372		183,988		184,360
Total real estate construction and land	370		575,103		575,473		372		527,348		527,720
Commercial:
Cash flow	39,665		3,126,149		3,165,814		15,800		3,046,468		3,062,268
Asset-based	2,046		2,586,870		2,588,916		2,505		2,545,028		2,547,533
Venture capital	—		1,502,611		1,502,611		124		1,452,303		1,452,427
Equipment finance	51,247		681,981		733,228		51,410		838,939		890,349
Total commercial	92,958		7,897,611		7,990,569		69,839		7,882,738		7,952,577
Consumer	926		109,696		110,622		1,531		119,318		120,849
Total Non-PCI loans and leases	$	130,418	$	14,176,543	$	14,306,961	$	129,019	$	14,160,190	$	14,289,209

At March 31, 2016, nonaccrual loans and leases totaled $130.4 million and included $13.5 million of loans and leases 90 or more days past due, $13.7 million of loans and leases 30 to 89 days past due, and $103.2 million of current loans and leases that were placed on nonaccrual status based on management’s judgment regarding their collectability. Nonaccrual loans and leases totaled $129.0 million at December 31, 2015, including $16.8 million of the loans and leases 90 or more days past due, $3.6 million of loans and leases 30 to 89 days past due, and $108.6 million of current loans and leases that were placed on nonaccrual status based on management’s judgment regarding their collectability.

The following table presents the credit risk rating categories for Non‑PCI loans and leases by portfolio segment and class as of the dates indicated. Nonclassified loans and leases are those with a credit risk rating of either pass or special mention, while classified loans and leases are those with a credit risk rating of either substandard or doubtful.

	March 31, 2016						December 31, 2015
	Classified		Nonclassified		Total		Classified		Nonclassified		Total
	(In thousands)
Real estate mortgage:
Commercial	$	65,532	$	4,487,429	$	4,552,961	$	98,436	$	4,453,522	$	4,551,958
Residential	18,361		1,058,975		1,077,336		12,627		1,123,478		1,136,105
Total real estate mortgage	83,893		5,546,404		5,630,297		111,063		5,577,000		5,688,063
Real estate construction and land:
Commercial	558		304,971		305,529		571		342,789		343,360
Residential	1,382		268,562		269,944		1,395		182,965		184,360
Total real estate construction and land	1,940		573,533		575,473		1,966		525,754		527,720
Commercial:
Cash flow	209,108		2,956,706		3,165,814		183,726		2,878,542		3,062,268
Asset-based	22,236		2,566,680		2,588,916		19,340		2,528,193		2,547,533
Venture capital	14,889		1,487,722		1,502,611		19,105		1,433,322		1,452,427
Equipment finance	51,247		681,981		733,228		54,054		836,295		890,349
Total commercial	297,480		7,693,089		7,990,569		276,225		7,676,352		7,952,577
Consumer	1,385		109,237		110,622		2,500		118,349		120,849
Total Non-PCI loans and leases	$	384,698	$	13,922,263	$	14,306,961	$	391,754	$	13,897,455	$	14,289,209

In addition to our internal risk rating process, our federal and state banking regulators, as an integral part of their examination process, periodically review the Company’s loan and lease risk rating classifications. Our regulators may require the Company to recognize rating downgrades based on their judgments related to information available to them at the time of their examinations. Risk rating downgrades generally result in higher allowances for credit losses.

Non‑PCI nonaccrual loans and leases and performing troubled debt restructured loans are considered impaired for reporting purposes. The following table presents the composition of our impaired loans and leases as of the dates indicated:

	March 31, 2016						December 31, 2015
			Performing		Total				Performing		Total
	Nonaccrual		Restructured		Impaired		Nonaccrual		Restructured		Impaired
	Loans/Leases		Loans		Loans/Leases		Loans/Leases		Loans		Loans/Leases
	(In thousands)
Real estate mortgage	$	36,164	$	55,124	$	91,288	$	57,277	$	27,133	$	84,410
Real estate construction and land	370		7,575		7,945		372		7,631		8,003
Commercial	92,958		3,901		96,859		69,839		5,221		75,060
Consumer	926		229		1,155		1,531		197		1,728
Total	$	130,418	$	66,829	$	197,247	$	129,019	$	40,182	$	169,201

The following tables present information regarding our Non‑PCI impaired loans and leases by portfolio segment and class as of and for the dates indicated:

	March 31, 2016						December 31, 2015
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	25,440	$	26,632	$	1,206	$	17,967	$	19,219	$	777
Residential	4,198		4,352		748		2,278		2,435		681
Real estate construction and land:
Residential	743		743		21		747		747		26
Commercial:
Cash flow	37,894		44,786		9,965		14,072		20,312		7,079
Asset-based	3,696		4,250		1,973		3,901		4,423		2,511
Equipment finance	51,247		58,862		15,964		11,193		11,894		8,032
Consumer	359		365		163		365		372		157
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	55,460	$	65,094			$	58,678	$	68,333
Residential	6,190		12,347				5,487		11,406
Real estate construction and land:
Commercial	7,202		7,197				7,256		7,256
Commercial:
Cash flow	2,841		5,188				2,825		5,121
Asset-based	1,181		1,176				2,729		2,726
Venture capital	—		—				124		125
Equipment finance	—		—				40,216		44,194
Consumer	796		1,904				1,363		1,945
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	91,288	$	108,425	$	1,954	$	84,410	$	101,393	$	1,458
Real estate construction and land	7,945		7,940		21		8,003		8,003		26
Commercial	96,859		114,262		27,902		75,060		88,795		17,622
Consumer	1,155		2,269		163		1,728		2,317		157
Total	$	197,247	$	232,896	$	30,040	$	169,201	$	200,508	$	19,263

	Three Months Ended March 31,
	2016				2015
	Weighted		Interest		Weighted		Interest
	Average		Income		Average		Income
	Balance(1)		Recognized		Balance(1)		Recognized
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	19,471	$	243	$	11,917	$	148
Residential	4,198		24		2,796		7
Real estate construction and land:
Commercial	—		—		403		5
Residential	743		4		759		4
Commercial:
Cash flow	20,823		12		16,028		11
Asset-based	3,696		27		4,693		33
Equipment finance	49,322		—		4,581		—
Consumer	341		3		383		4
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	54,132	$	217	$	36,704	$	74
Residential	5,405		14		5,187		6
Real estate construction and land:
Commercial	7,202		62		7,457		271
Residential	—		—		20		—
Commercial:
Cash flow	2,683		1		3,845		46
Asset-based	1,181		15		7,435		48
Equipment finance	—		—		7,537		—
Consumer	797		—		3,345		—
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	83,206	$	498	$	56,604	$	235
Real estate construction and land	7,945		66		8,639		280
Commercial	77,705		55		44,119		138
Consumer	1,138		3		3,728		4
Total	$	169,994	$	622	$	113,090	$	657

_________________________

(1) For Non-PCI loans and leases reported as impaired at March 31, 2016 and 2015, amounts were calculated based on the period of time such loans and leases were impaired during the reported period.

Troubled debt restructurings are a result of rate reductions, term extensions, fee concessions, and debt forgiveness or a combination thereof. The following tables present new troubled debt restructurings of Non-PCI loans for the periods indicated:

	Three Months Ended March 31,
	2016					2015
		Pre-		Post-			Pre-		Post-
		Modification		Modification			Modification		Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number	Recorded		Recorded		Number	Recorded		Recorded
Troubled Debt Restructurings:	of Loans	Investment		Investment		of Loans	Investment		Investment
	(Dollars in thousands)
Real estate mortgage:
Commercial	4	$	3,140	$	3,140	9	$	5,161	$	5,113
Residential	1	165		165		5	913		773
Real estate construction and land:
Commercial	—	—		—		1	2,610		2,610
Commercial:
Cash flow	4	257		257		4	761		582
Asset-based	2	629		629		6	1,399		1,399
Equipment finance	2	2,660		2,660		4	4,133		4,133
Consumer	1	60		60		1	91		91
Total	14	$	6,911	$	6,911	30	$	15,068	$	14,701

The following tables present troubled debt restructurings that subsequently defaulted for the periods indicated:

	Three Months Ended March 31,
	2016				2015
Troubled Debt Restructurings	Number	Recorded			Number	Recorded
That Subsequently Defaulted:	of Loans	Investment(1)			of Loans	Investment(1)
	(Dollars in thousands)
Real estate mortgage:
Commercial	1	$	230		1	$	1,511
Residential	—	—			1	8
Commercial - Asset-based	—	—			1	385
Total	1	$	230	(2)	3	$	1,904	(3)

_________________________

(1) The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.

(2) Represents the balance at March 31, 2016, and there were no charge-offs.

(3) Represents the balance at March 31, 2015, and is net of charge-offs of $772,000.

Allowance for Loan and Lease Losses

The following tables present a summary of the activity in the allowance for loan and lease losses on Non‑PCI loans and leases by portfolio segment and PCI loans for the periods indicated:

	Three Months Ended March 31, 2016
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	36,654		$	7,137		$	61,082		$	661		$	105,534		$	9,577		$	115,111
Charge-offs	(737		)	—			(4,045		)	(591		)	(5,373		)	(163		)	(5,536		)
Recoveries	999			152			314			16			1,481			—			1,481
Provision (negative provision)	(7,817		)	(413		)	26,606			789			19,165			140			19,305
Balance, end of period	$	29,099		$	6,876		$	83,957		$	875		$	120,807		$	9,554		$	130,361
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,954		$	21		$	27,902		$	163		$	30,040
Collectively evaluated for impairment	$	27,145		$	6,855		$	56,055		$	712		$	90,767
Acquired loans with deteriorated credit quality																$	9,554
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	90,830		$	7,945		$	96,614		$	1,102		$	196,491
Collectively evaluated for impairment	$	5,539,467		$	567,528		$	7,893,955		$	109,520		$	14,110,470
Acquired loans with deteriorated credit quality																$	176,556
Ending balance of
loans and leases	$	5,630,297		$	575,473		$	7,990,569		$	110,622		$	14,306,961		$	176,556		$	14,483,517

	Three Months Ended March 31, 2015
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	25,097		$	4,248		$	39,858		$	1,253		$	70,456		$	13,999		$	84,455
Charge-offs	(1,453		)	—			(8,395		)	(63		)	(9,911		)	(579		)	(10,490		)
Recoveries	1,295			632			410			194			2,531			11			2,542
Provision (negative provision)	5,972			(2,707		)	13,921			(582		)	16,604			(733		)	15,871
Balance, end of period	$	30,911		$	2,173		$	45,794		$	802		$	79,680		$	12,698		$	92,378
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,500		$	55		$	10,493		$	178		$	12,226
Collectively evaluated for impairment	$	29,411		$	2,118		$	35,301		$	624		$	67,454
Acquired loans with deteriorated credit quality																$	12,698
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	59,733		$	8,639		$	103,208		$	3,729		$	175,309
Collectively evaluated for impairment	$	5,528,697		$	320,070		$	5,903,859		$	89,946		$	11,842,572
Acquired loans with deteriorated credit quality																$	254,285
Ending balance of
loans and leases	$	5,588,430		$	328,709		$	6,007,067		$	93,675		$	12,017,881		$	254,285		$	12,272,166

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Foreclosed Assets

3 Months Ended

Mar. 31, 2016

Other Real Estate Owned Net Covered and NonCovered Including Foreclosed Assets [Abstract]

Foreclosed Assets

Foreclosed Assets

The following table summarizes foreclosed assets as of the dates indicated:

	March 31,		December 31,
Property Type:	2016		2015
	(In thousands)
Commercial real estate	$	—	$	487
Construction and land development	13,800		13,801
Single family residence	897		952
Total other real estate owned, net	14,697		15,240
Other foreclosed assets	3,613		6,880
Total foreclosed assets, net	$	18,310	$	22,120

The following table presents the changes in foreclosed assets, net of the valuation allowance, for the period indicated:

	Foreclosed
	Assets
	(In thousands)
Balance, December 31, 2015	$	22,120
Foreclosures	129
Provision for losses	—
Reductions related to sales	(3,939		)
Balance, March 31, 2016	$	18,310

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Borrowings and Subordinated Debentures

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Borrowings, Subordinated Debentures and Brokered Deposit

Borrowings and Subordinated Debentures

Borrowings

The following table summarizes our borrowings as of the dates indicated:

	March 31, 2016				December 31, 2015
	Amount		Rate		Amount		Rate
	(Dollars in thousands)
Non‑recourse debt	$	1,401	6.20	%	$	3,914	5.49	%
FHLB overnight advances	550,000		0.48	%	618,000		0.27	%
Total borrowings	$	551,401			$	621,914

The non‑recourse debt represents the payment stream of certain equipment leases sold to third parties. The debt is secured by the leased equipment and all interest rates are fixed. As of March 31, 2016, this debt had a weighted average remaining maturity of 2.3 years.

The Bank has established secured and unsecured lines of credit under which it may borrow funds from time to time on a term or overnight basis from the FHLB, the Federal Reserve Bank of San Francisco (“FRBSF”), and other financial institutions.

FHLB Secured Lines of Credit. The borrowing arrangement with the FHLB is based on an FHLB program collateralized by a blanket lien on certain qualifying loans that are not pledged to the FRBSF. As of March 31, 2016, the borrowing capacity under the FHLB secured borrowing lines was $2.3 billion. As of March 31, 2016 and December 31, 2015, the balances outstanding were $550.0 million and $618.0 million.

FRBSF Secured Line of Credit. The Bank has a secured line of credit with the FRBSF. As of March 31, 2016, the Bank had secured borrowing capacity of $2.1 billion collateralized by liens covering $3.0 billion of certain qualifying loans. As of March 31, 2016 and December 31, 2015, there were no balances outstanding.

Federal Funds Arrangements with Commercial Banks. As of March 31, 2016, the Bank had uncommitted unsecured lines of credit of $80.0 million with correspondent banks for the purchase of overnight funds, subject to availability of funds. These lines are renewable annually and have no unused commitment fees. As of March 31, 2016 and December 31, 2015, there were no balances outstanding. In March 2016, the Bank became a member of the American Financial Exchange, through which it may either borrow or lend funds on an overnight basis with a group of pre-approved commercial banks. The availability of funds changes daily. There were no balances outstanding as of March 31, 2016.

FHLB Unsecured Line of Credit. During the second quarter of 2015, the Bank obtained a $99.0 million unsecured line of credit with the FHLB for the purchase of overnight funds. As of March 31, 2016 and December 31, 2015, there were no balances outstanding.

Subordinated Debentures

The following table summarizes the terms of each issuance of subordinated debentures outstanding as of the dates indicated:

	March 31, 2016					December 31, 2015					Date	Maturity	Rate Index
Series:	Amount			Rate		Amount			Rate		Issued	Date	(Quarterly Reset)
	(Dollars in thousands)
Trust V	$	10,310		3.74	%	$	10,310		3.63	%	8/15/2003	9/17/2033	3 month LIBOR + 3.10
Trust VI	10,310			3.68	%	10,310			3.39	%	9/3/2003	9/15/2033	3 month LIBOR + 3.05
Trust CII	5,155			3.59	%	5,155			3.35	%	9/17/2003	9/17/2033	3 month LIBOR + 2.95
Trust VII	61,856			3.37	%	61,856			3.07	%	2/5/2004	4/23/2034	3 month LIBOR + 2.75
Trust CIII	20,619			2.32	%	20,619			2.20	%	8/15/2005	9/15/2035	3 month LIBOR + 1.69
Trust FCCI	16,495			2.23	%	16,495			2.11	%	1/25/2007	3/15/2037	3 month LIBOR + 1.60
Trust FCBI	10,310			2.18	%	10,310			2.06	%	9/30/2005	12/15/2035	3 month LIBOR + 1.55
Trust CS 2005-1	82,475			2.58	%	82,475			2.46	%	11/21/2005	12/15/2035	3 month LIBOR + 1.95
Trust CS 2005-2	128,866			2.57	%	128,866			2.27	%	12/14/2005	1/30/2036	3 month LIBOR + 1.95
Trust CS 2006-1	51,545			2.57	%	51,545			2.27	%	2/22/2006	4/30/2036	3 month LIBOR + 1.95
Trust CS 2006-2	51,550			2.57	%	51,550			2.27	%	9/27/2006	10/30/2036	3 month LIBOR + 1.95
Trust CS 2006-3 (1)	29,335			1.88	%	28,007			1.98	%	9/29/2006	10/30/2036	3 month EURIBOR + 2.05
Trust CS 2006-4	16,470			2.57	%	16,470			2.27	%	12/5/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2006-5	6,650			2.57	%	6,650			2.27	%	12/19/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2007-2	39,177			2.57	%	39,177			2.27	%	6/13/2007	7/30/2037	3 month LIBOR + 1.95
Gross subordinated debentures	541,123					539,795
Unamortized discount (2)	(102,400		)			(103,795		)
Net subordinated debentures	$	438,723				$	436,000

___________________

(1) Denomination is in Euros with a value of €25.8 million.

(2) Amount represents the fair value adjustment on subordinated debentures assumed in acquisitions.

Interest payments made by the Company on subordinated debentures are considered dividend payments under the Board of Governors of the Federal Reserve System (“FRB”) regulations. Bank holding companies, such as PacWest, are required to notify the FRB prior to declaring and paying a dividend during any period in which quarterly and/or cumulative twelve‑month net earnings are insufficient to fund the dividend amount, among other requirements.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Lending Commitments

The Company is a party to financial instruments with off‑balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit, and commitments to purchase equipment being acquired for lease to others. Those instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the condensed consolidated balance sheets. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.

The following table presents a summary of the financial instruments described above as of the dates indicated:

	March 31,		December 31,
	2016		2015
	(In thousands)
Loan commitments to extend credit	$	3,812,544	$	3,580,655
Standby letters of credit	217,610		210,292
Commitments to purchase equipment being acquired for lease to others	—		6,663
	$	4,030,154	$	3,797,610

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. We provide standby letters of credit in conjunction with several of our lending arrangements and property lease obligations. Most guarantees expire within one year from the date of issuance. If a borrower defaults on its commitments subject to any letter of credit issued under these arrangements, we would be required to meet the borrower's financial obligation but would seek repayment of that financial obligation from the borrower. In some cases, borrowers have pledged cash and investment securities as collateral with us under these arrangements.

In addition, we invest in low income housing project partnerships, which provide income tax credits, and in small business investment companies that call for capital contributions up to an amount specified in the partnership agreements. As of March 31, 2016 and December 31, 2015, we had commitments to contribute capital to these entities totaling $21.5 million and $19.2 million. We also had commitments to contribute up to an additional $2.9 million and $2.8 million to 19 and 11 private equity funds at March 31, 2016 and December 31, 2015.

Legal Matters

In the ordinary course of our business, the Company is party to various legal actions, which we believe are incidental to the operation of our business. The outcome of such legal actions and the timing of ultimate resolution are inherently difficult to predict. In the opinion of management, based upon currently available information, any resulting liability, in addition to amounts already accrued, and taking into consideration insurance which may be applicable, would not have a material adverse effect on the Company’s financial statements or operations.

Kinde Durkee Investigation

The United States Attorney's Office for the Eastern District of California is conducting an investigation relating to the handling by First California Bank ("FCB") of its banking relationship with Kinde Durkee. Ms. Durkee, who had maintained certain of her accounts with FCB, was convicted in 2012 of embezzling funds from certain California politicians, among others. FCB was acquired by PacWest Bancorp and merged into Pacific Western Bank in May 2013. We understand that the investigation is focused on whether any civil or criminal laws were violated by FCB or its employees. Pacific Western is cooperating with the investigation.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

ASC Topic 820, “Fair Value Measurement,” defines fair value, establishes a framework for measuring fair value including a three‑level valuation hierarchy, and expands disclosures about fair value measurements. Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date reflecting assumptions that a market participant would use when pricing an asset or liability. The hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:

• Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets.

• Level 2: Observable inputs other than Level 1, including quoted prices for similar assets and liabilities in active markets, quoted prices in less active markets, or other observable inputs that can be corroborated by observable market data, either directly or indirectly, for substantially the full term of the financial instrument. This category generally includes municipal securities, government agency and government‑sponsored enterprise securities, collateralized loan obligations, registered publicly rated private label collateralized mortgage obligations ("CMOs") and asset-backed securitizations.

• Level 3: Inputs to a valuation methodology that are unobservable, supported by little or no market activity, and significant to the fair value measurement. These valuation methodologies generally include pricing models, discounted cash flow models, or a determination of fair value that requires significant management judgment or estimation. This category also includes observable inputs from a pricing service not corroborated by observable market data, and includes our covered private label CMOs, non-rated private placement private label CMOs, non-rated private placement asset-backed securities, and equity warrants.

We use fair value to measure certain assets and liabilities on a recurring basis, primarily securities available‑for‑sale and derivatives. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period and such measurements are therefore considered “nonrecurring” for purposes of disclosing our fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for impaired loans and other real estate owned and also to record impairment on certain assets, such as goodwill, core deposit intangibles, and other long‑lived assets.

The following tables present information on the assets measured and recorded at fair value on a recurring basis as of the dates indicated:

	Fair Value Measurements as of
	March 31, 2016
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	653,865	$	—	$	653,865	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	443,732		—		443,732		—
Covered private label CMOs	27,863		—		—		27,863
Other private label CMOs	107,382		—		60,030		47,352
Municipal securities	1,517,592		—		1,517,592		—
Corporate debt securities	45,483		—		45,483		—
Collateralized loan obligations	139,572		—		139,572		—
SBA securities	202,674		—		202,674		—
Asset-backed and other securities	102,423		2,551		83,156		16,716
Total securities available-for-sale	3,240,586		2,551		3,146,104		91,931
Derivative assets	6,654		—		6,654		—
Equity warrants	5,033		—		—		5,033
Total recurring assets	$	3,252,273	$	2,551	$	3,152,758	$	96,964
Derivative liabilities	$	2,079	$	—	$	2,079	$	—

	Fair Value Measurements as of
	December 31, 2015
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	767,797	$	—	$	767,797	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	486,239		—		486,239		—
Covered private label CMOs	29,782		—		—		29,782
Other private label CMOs	115,014		—		63,555		51,459
Municipal securities	1,547,331		—		1,547,331		—
US Treasury securities	69,380		69,380		—		—
Corporate debt securities	48,424		—		48,424		—
Collateralized loan obligations	132,189		—		132,189		—
SBA securities	211,157		—		211,157		—
Government‑sponsored enterprise debt securities	36,913		—		36,913		—
Asset-backed and other securities	115,211		2,562		94,449		18,200
Total securities available-for-sale	3,559,437		71,942		3,388,054		99,441
Derivative assets	11,919		—		11,919		—
Equity warrants	4,914		—		—		4,914
Total recurring assets	$	3,576,270	$	71,942	$	3,399,973	$	104,355
Derivative liabilities	$	1,397	$	—	$	1,397	$	—

There were no transfers of assets either between Level 1 and Level 2 nor in or out of Level 3 of the fair value hierarchy for assets measured on a recurring basis during the three months endedMarch 31, 2016.

The following table presents information about quantitative inputs and assumptions used to determine the fair values provided by our third party pricing service for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis as of March 31, 2016:

	Private Label CMOs		Asset-Backed Securities
		Weighted		Weighted
	Range	Average	Range	Average
Unobservable Inputs:	of Inputs	Input	of Inputs	Input
Voluntary annual prepayment speeds	1.5% - 22.4%	10.5%	5% - 40%	14.2%
Annual default rates	0.3% - 13.7%	2.4%	1% - 8%	3.7%
Loss severity rates	0% - 96.9%	32.6%	10% - 91%	51.8%
Discount rates	0.8% - 57.3%	3.8%	1.8% - 5.2%	3.4%

The following table presents information about quantitative inputs and assumptions used in the modified Black-Scholes option pricing model to determine the fair value for our Level 3 equity warrants measured at fair value on a recurring basis as of March 31, 2016:

	Equity Warrants
	Weighted Average
Unobservable Inputs:	Range of Inputs
Volatility	18.7% - 161.5%
Risk-free interest rate	0.7% - 1.0%
Remaining life assumption (in years)	2.0 - 3.7

The following table summarizes activity for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis for the period indicated:

	Private			Asset-Backed
	Label CMOs			Securities
	(In thousands)
Balance, December 31, 2015	$	81,241		$	18,200
Total included in earnings	353			15
Total included in other comprehensive income	(1,251		)	(12		)
Net settlements	(5,128		)	(1,487		)
Balance, March 31, 2016	$	75,215		$	16,716

The following table summarizes activity for our Level 3 equity warrants measured at fair value on a recurring basis for the period indicated:

	Equity
	Warrants
	(In thousands)
Balance, December 31, 2015	$	4,914
Total included in earnings	(274		)
Sales	(42		)
Issuances	435
Balance, March 31, 2016	$	5,033

The following tables present assets measured at fair value on a non‑recurring basis as of the dates indicated:

	Fair Value Measurement as of
	March 31, 2016
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	95,310	$	—	$	2,121	$	93,189

	Fair Value Measurement as of
	December 31, 2015
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	40,817	$	—	$	9,367	$	31,450
Other real estate owned	14,101		—		14,101		—
Investments carried at cost	107		—		—		107
Total non-recurring	$	55,025	$	—	$	23,468	$	31,557

The following table presents losses recognized on assets measured on a nonrecurring basis for the periods indicated:

	Three Months Ended
	March 31,
Losses on Assets Measured on a Non‑Recurring Basis:	2016			2015
	(In thousands)
Impaired Non‑PCI loans	$	(12,909	)	$	(9,192	)
Other real estate owned	—			(124		)
Total loss	$	(12,909	)	$	(9,316	)

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a nonrecurring basis as of March 31, 2016:

			Valuation	Unobservable		Weighted
Asset:	Fair Value		Technique	Inputs	Range	Average
	(In thousands)
Impaired Non-PCI loans	$	52,516	Discounted cash flows	Discount rates	0% - 9.04%	6.33%
Impaired Non-PCI loans	38,910		Third party appraisals	Discounts	10.00% - 28.44%	25.25%
Impaired Non-PCI loans	1,763		Third party appraisals	No discounts
Total non-recurring Level 3	$	93,189

ASC Topic 825, “Financial Instruments,” requires disclosure of the estimated fair value of certain financial instruments and the methods and significant assumptions used to estimate such fair values. Additionally, certain financial instruments and all nonfinancial instruments are excluded from the applicable disclosure requirements.

The following tables present a summary of the carrying values and estimated fair values of certain financial instruments as of the dates indicated:

	March 31, 2016
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,977	$	161,977	$	161,977	$	—	$	—
Interest‑earning deposits in financial institutions	357,541		357,541		357,541		—		—
Securities available‑for‑sale	3,240,586		3,240,586		2,551		3,146,104		91,931
Investment in FHLB stock	17,250		17,250		—		17,250		—
Investments carried at cost	1,990		4,950		—		—		4,950
Loans and leases, net	14,353,156		14,337,455		—		2,121		14,335,334
Derivative assets	6,654		6,654		—		6,654		—
Equity warrants	5,033		5,033		—		—		5,033
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,956,102		11,956,102		—		11,956,102		—
Time deposits	3,485,273		3,484,782		—		3,484,782		—
Borrowings	551,401		551,401		550,000		1,401		—
Subordinated debentures	438,723		421,669		—		421,669		—
Derivative liabilities	2,079		2,079		—		2,079		—

	December 31, 2015
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,020	$	161,020	$	161,020	$	—	$	—
Interest‑earning deposits in financial institutions	235,466		235,466		235,466		—		—
Securities available‑for‑sale	3,559,437		3,559,437		71,942		3,388,054		99,441
Investment in FHLB stock	19,710		19,710		—		19,710		—
Investments carried at cost	2,267		6,789		—		—		6,789
Loans and leases, net	14,363,143		14,393,558		—		9,367		14,384,191
Derivative assets	11,919		11,919		—		11,919		—
Equity warrants	4,914		4,914		—		—		4,914
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,513,826		11,513,826		—		11,513,826		—
Time deposits	4,152,356		4,152,920		—		4,152,920		—
Borrowings	621,914		622,438		618,000		4,438		—
Subordinated debentures	436,000		419,762		—		419,762		—
Derivative liabilities	1,397		1,397		—		1,397		—

For information regarding the valuation methodologies used to measure our assets recorded at fair value (under ASC Topic 820), and for estimating fair value for financial instruments not recorded at fair value (under ASC Topic 825), see Note 1 - Nature of Operations and Summary of Significant Accounting Policies and Note 13 - Fair ValueMeasurements to the Consolidated Financial Statements of the Company's 2015 Annual Report on Form 10-K.

Limitations

Fair value estimates are made at a specific point in time and are based on relevant market information and information about the financial instrument. These estimates do not reflect income taxes or any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a portion of the Company’s financial instruments, fair value estimates are based on what management believes to be reasonable judgments regarding expected future cash flows, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimated fair values are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Since the fair values have been estimated as of March 31, 2016, the amounts that will actually be realized or paid at settlement or maturity of the instruments could be significantly different.

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Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The following table presents the computations of basic and diluted net earnings per share for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Dollars in thousands, except per share data)
Basic Earnings Per Share:
Net earnings	$	90,456		$	71,841		$	73,079
Less: Earnings allocated to unvested restricted stock (1)	(1,067		)	(690		)	(819		)
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares and unvested restricted
stock outstanding	121,598			120,385			103,035
Less: Weighted-average unvested restricted stock outstanding	(1,392		)	(1,133		)	(1,122		)
Weighted-average basic shares outstanding	120,206			119,252			101,913
Basic earnings per share	$	0.74		$	0.60		$	0.71
Diluted Earnings Per Share:
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares outstanding	120,206			119,252			101,913
Diluted earnings per share	$	0.74		$	0.60		$	0.71

________________________

(1) Represents cash dividends paid to holders of unvested restricted stock, net of estimated forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.

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Stock Based Compensation

3 Months Ended

Mar. 31, 2016

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

Stock Based Compensation

Stock-Based Compensation

The Company’s 2003 Stock Incentive Plan, or the 2003 Plan, permits stock-based compensation awards to officers, directors, key employees and consultants. As of March 31, 2016, the 2003 Plan authorized grants of stock‑based compensation instruments to purchase or issue up to 19,686,565 shares of Company common stock, subject to adjustments provided by the 2003 Plan. As of March 31, 2016, there were 12,616,206 shares available for grant under the 2003 Plan.

Restricted stock amortization totaled $5.0 million, $3.8 million, and $3.1 million for the three months endedMarch 31, 2016, December 31, 2015 and March 31, 2015. Such amounts are included in "Compensation expense" on the condensed consolidated statements of earnings. The amount of unrecognized compensation expense related to unvested time-based restricted stock awards ("TRSAs") and performance-based restricted stock units ("PRSUs") as of March 31, 2016 totaled $51.8 million.

Time-Based Restricted Stock Awards

At March 31, 2016, there were 1,562,557 shares of unvested TRSAs outstanding. The TRSAs generally vest over a service period of three or four years from the date of the grant or immediately upon the death of an employee. Compensation expense related to TRSAs is based on the fair value of the underlying stock on the award date and is recognized over the vesting period using the straight‑line method.

Performance-Based Restricted Stock Units

At March 31, 2016, there were 153,715 shares of unvested PRSUs outstanding. The PRSUs will vest only if performance goals with respect to certain financial metrics are met over a three-year performance period. Compensation expense related to PRSUs is based on the fair value of the underlying stock on the award date and is amortized over the vesting period using the straight-line method unless it is determined that: (1) attainment of the financial metrics is less than probable, in which case a portion of the amortization is suspended, or (2) attainment of the financial metrics is improbable, in which case a portion of the previously recognized amortization is reversed and also suspended.

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Recently Issued Accounting Standards

3 Months Ended

Mar. 31, 2016

Recently Issued Accounting Standards [Abstract]

Recently Issued Accounting Standards

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-09, "Revenue Recognition (Topic 606): Revenue from Contracts with Customers." ASU 2014-09 requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. ASU 2014-09 will replace most existing revenue recognition guidance in GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting. In August 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which deferred the effective date of ASU 2014-09 to annual and interim periods beginning after December 15, 2017. Early application is not permitted.

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which will significantly change the income statement impact of equity investments and the recognition of changes in fair value of financial liabilities when the fair value option is elected. For equity investments with readily determinable fair values, entities must measure these investments at fair value and recognized changes in fair value in net income. For equity investments without readily determinable fair values, entities have the option to either measure these investments at fair value or at cost adjusted for changes in observable prices minus impairment. Changes in measurement under either alternative must be recognized in net income. ASU 2016-01 will be effective for annual and interim periods beginning after December 15, 2017. The Company is evaluating the effect that ASU 2016-01 will have on its financial statements and related disclosures.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," which, among other things, requires lessees to recognize most leases on-balance sheet, which will result in an increase in their reported assets and liabilities. Lessor accounting remains substantially similar to current U.S. GAAP. ASU 2016-02 supersedes Topic 840, Leases. ASU 2016-02 is effective for annual and interim periods in fiscal years beginning after December 15, 2018. ASU 2016-02 mandates a modified retrospective transition method for all entities. The Company is evaluating the effect that ASU 2016-02 will have on its financial statements and related disclosures.

In March 2016, the FASB issued ASU 2016-07, Simplifying the Transition to the Equity Method of Accounting, which eliminates the requirement for an investor to retroactively apply the equity method when its increase in ownership interest (or degree of influence) in an investee triggers equity method accounting. ASU 2016-07 is effective for interim and annual periods in fiscal years beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. Earlier application is permitted. ASU 2016-07 does not require additional disclosures at transition. The Company does not expect the effect of ASU 2016-06 to have a material impact on its financial statements and related disclosures.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting, which is intended to improve the accounting for share-based payment transactions as part of the FASB’s simplification initiative. ASU 2016-09 changes aspects of the accounting for share-based payment award transactions, including: (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flows; (3) forfeitures; (4) minimum statutory tax withholding requirements; and (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax-withholding purposes. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016, and interim periods within those years. Early adoption is permitted in any interim or annual period provided that the entire ASU is adopted. If an entity early adopts the amendments after the first interim period, the adoption date is as of the beginning of the year for the issues adopted by the cumulative-effect and prospective methods and any adjustments to previously reported interim periods of that fiscal year should be included in the year-to-date results. If those previously reported interim results appear in any future filings, they are reported on the revised basis. The Company does not expect the effect of ASU 2016-09 to have a material impact on its financial statements and related disclosures in the period of adoption. In subsequent periods, we expect the requirements of ASU 2016-09 to result in fluctuations in our effective tax rate from period to period based upon the timing of share-based award vestings.

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Subsequent Events

3 Months Ended

Mar. 31, 2016

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

Common Stock Dividends

On May 2, 2016, the Company announced that the Board of Directors had declared a quarterly cash dividend of $0.50 per common share. The cash dividend is payable on May 31, 2016 to stockholders of record at the close of business on May 16, 2016.

We have evaluated events that have occurred subsequent to March 31, 2016 and have concluded there are no other subsequent events that would require recognition in the accompanying consolidated financial statements.

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Acquisitions (Tables)

3 Months Ended

Mar. 31, 2016

Business Combinations [Abstract]

Business Acquisition, Integration, Restructuring and Other Related Costs

The costs shown for the three months ended March 31, 2016 and December 31, 2015 relate to the Square 1 acquisition and ongoing systems integration. The following table presents the components of acquisition, integration and reorganization costs for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Acquisition, Integration and Reorganization Costs:
Severance and employee-related	$	—	$	10,500	$	—
System conversion and integration	200		3,802		—
Asset write-downs, lease terminations and
other facilities-related	—		125		—
Investment banking deal costs	—		—		1,050
Other (legal, accounting, insurance, consulting)	—		3,173		950
Total acquisition, integration and
reorganization costs	$	200	$	17,600	$	2,000

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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Disclosure

The following table presents the changes in the carrying amount of goodwill for the period indicated:    

	Goodwill
	(In thousands)
Balance, December 31, 2015	$	2,176,291
Reduction due to sale of PWEF leasing unit	(500		)
Balance, March 31, 2016	$	2,175,791

Intangible Assets Disclosure

The following table presents the changes in CDI and CRI and the related accumulated amortization for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(In thousands)
Gross Amount of CDI and CRI:
Balance, beginning of period	$	95,524		$	53,090		$	53,090
Additions	—			45,426			—
Fully amortized portion	—			(2,992		)	—
Reduction due to sale of PWEF leasing unit	(1,700		)	—			—
Balance, end of period	93,824			95,524			53,090
Accumulated Amortization:
Balance, beginning of period	(42,304		)	(40,386		)	(35,886		)
Amortization	(4,746		)	(4,910		)	(1,501		)
Fully amortized portion	—			2,992			—
Reduction due to sale of PWEF leasing unit	1,363			—			—
Balance, end of period	(45,687		)	(42,304		)	(37,387		)
Net CDI and CRI, end of period	$	48,137		$	53,220		$	15,703

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The following table presents amortized cost, gross unrealized gains and losses, and carrying values of securities available-for-sale as of the dates indicated:

	March 31, 2016									December 31, 2015
			Gross		Gross							Gross		Gross
	Amortized		Unrealized		Unrealized			Fair		Amortized		Unrealized		Unrealized			Fair
Security Type:	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
	(In thousands)
Residential mortgage-backed securities:
Government agency and
government-sponsored enterprise
pass-through securities	$	642,233	$	12,865	$	(1,233	)	$	653,865	$	759,881	$	12,075	$	(4,159	)	$	767,797
Government agency and
government-sponsored enterprise
collateralized mortgage obligations	431,456		12,515		(239		)	443,732		486,065		3,584		(3,410		)	486,239
Covered private label collateralized
mortgage obligations	23,026		5,064		(227		)	27,863		24,113		5,794		(125		)	29,782
Other private label collateralized
mortgage obligations	108,019		246		(883		)	107,382		115,952		43		(981		)	115,014
Municipal securities	1,457,795		59,886		(89		)	1,517,592		1,508,968		39,435		(1,072		)	1,547,331
US Treasury securities	—		—		—			—		70,196		—		(816		)	69,380
Corporate debt securities	47,269		303		(2,089		)	45,483		49,047		327		(950		)	48,424
Collateralized loan obligations	142,637		42		(3,107		)	139,572		133,192		128		(1,131		)	132,189
SBA securities	201,934		947		(207		)	202,674		211,946		41		(830		)	211,157
Government-sponsored enterprise debt
securities	—		—		—			—		36,302		611		—			36,913
Asset-backed and other securities	104,182		135		(1,894		)	102,423		116,723		119		(1,631		)	115,211
Total	$	3,158,551	$	92,003	$	(9,968	)	$	3,240,586	$	3,512,385	$	62,157	$	(15,105	)	$	3,559,437

Unrealized losses on investment securities

The following tables present the gross unrealized losses and fair values of securities available-for-sale that were in unrealized loss positions, for which other-than-temporary impairments have not been recognized in earnings, as of the dates indicated:

	March 31, 2016
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	196,388	$	(1,135	)	$	9,422	$	(98	)	$	205,810	$	(1,233	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	33,702		(239		)	—		—			33,702		(239		)
Covered private label collateralized
mortgage obligations	1,239		(98		)	849		(129		)	2,088		(227		)
Other private label collateralized
mortgage obligations	59,407		(838		)	1,029		(45		)	60,436		(883		)
Municipal securities	18,108		(55		)	5,496		(34		)	23,604		(89		)
Corporate debt securities	28,180		(2,089		)	—		—			28,180		(2,089		)
Collateralized loan obligations	106,773		(2,121		)	23,355		(986		)	130,128		(3,107		)
SBA securities	87,150		(207		)	—		—			87,150		(207		)
Asset-backed and other securities	64,013		(1,285		)	15,923		(609		)	79,936		(1,894		)
Total	$	594,960	$	(8,067	)	$	56,074	$	(1,901	)	$	651,034	$	(9,968	)

	December 31, 2015
	Less Than 12 Months					12 Months or More					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
Security Type:	Value		Losses			Value		Losses			Value		Losses
	(In thousands)
Residential mortgage-backed securities:
Government agency and government-
sponsored enterprise pass-through
securities	$	391,642	$	(3,893	)	$	9,342	$	(266	)	$	400,984	$	(4,159	)
Government agency and government-
sponsored enterprise collateralized
mortgage obligations	314,284		(2,769		)	14,230		(641		)	328,514		(3,410		)
Covered private label collateralized
mortgage obligations	1,354		(57		)	568		(68		)	1,922		(125		)
Other private label collateralized
mortgage obligations	92,179		(943		)	1,070		(38		)	93,249		(981		)
Municipal securities	126,892		(1,061		)	531		(11		)	127,423		(1,072		)
US Treasury securities	69,380		(816		)	—		—			69,380		(816		)
Corporate debt securities	29,379		(950		)	—		—			29,379		(950		)
Collateralized loan obligations	100,993		(1,131		)	—		—			100,993		(1,131		)
SBA securities	179,942		(830		)	—		—			179,942		(830		)
Asset-backed and other securities	71,619		(1,182		)	16,091		(449		)	87,710		(1,631		)
Total	$	1,377,664	$	(13,632	)	$	41,832	$	(1,473	)	$	1,419,496	$	(15,105	)

Investments Classified by Contractual Maturity Date

The following table presents the contractual maturities of our available-for-sale securities portfolio based on amortized cost and carrying value as of the date indicated:

	March 31, 2016
	Amortized		Fair
Maturity:	Cost		Value
	(In thousands)
Due in one year or less	$	12,821	$	12,628
Due after one year through five years	216,420		219,110
Due after five years through ten years	603,523		619,214
Due after ten years	2,325,787		2,389,634
Total securities available-for-sale	$	3,158,551	$	3,240,586

Investment Income

The following table presents the composition of our interest income on investment securities for the periods indicated:

	Three Months Ended
	March 31,		December 31,		March 31,
	2016		2015		2015
	(In thousands)
Taxable interest	$	11,396	$	12,730	$	7,473
Non-taxable interest	10,726		10,459		3,894
Dividend income	425		459		828
Total interest income on investment securities	$	22,547	$	23,648	$	12,195

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Loans and Leases (Tables)

3 Months Ended

Mar. 31, 2016

Accounts, Notes, Loans and Financing Receivable [Line Items]

Schedule Of Composition of Loans Portfolio

The following table summarizes the composition of our loan and lease portfolio as of the dates indicated:

	March 31, 2016									December 31, 2015
	Non-PCI									Non-PCI
	Loans			PCI						Loans			PCI
	and Leases			Loans			Total			and Leases			Loans			Total
	(In thousands)
Real estate mortgage	$	5,649,282		$	160,122		$	5,809,404		$	5,706,903		$	168,725		$	5,875,628
Real estate construction and land	584,968			2,689			587,657			534,307			2,656			536,963
Commercial	8,021,092			13,513			8,034,605			7,977,067			17,415			7,994,482
Consumer	110,573			283			110,856			120,793			299			121,092
Total gross loans and leases	14,365,915			176,607			14,542,522			14,339,070			189,095			14,528,165
Deferred fees and costs	(58,954		)	(51		)	(59,005		)	(49,861		)	(50		)	(49,911		)
Total loans and leases, net of deferred fees	14,306,961			176,556			14,483,517			14,289,209			189,045			14,478,254
Allowance for loan and lease losses	(120,807		)	(9,554		)	(130,361		)	(105,534		)	(9,577		)	(115,111		)
Total net loans and leases	$	14,186,154		$	167,002		$	14,353,156		$	14,183,675		$	179,468		$	14,363,143

Delinquent loans in loan portfolio

The following tables present an aging analysis of our Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	16,655	$	10,638	$	27,293	$	4,525,668	$	4,552,961
Residential	2,187		559		2,746		1,074,590		1,077,336
Total real estate mortgage	18,842		11,197		30,039		5,600,258		5,630,297
Real estate construction and land:
Commercial	—		—		—		305,529		305,529
Residential	—		—		—		269,944		269,944
Total real estate construction and land	—		—		—		575,473		575,473
Commercial:
Cash flow	766		2,013		2,779		3,163,035		3,165,814
Asset-based	4		—		4		2,588,912		2,588,916
Venture capital	9,554		—		9,554		1,493,057		1,502,611
Equipment finance	2,244		2,140		4,384		728,844		733,228
Total commercial	12,568		4,153		16,721		7,973,848		7,990,569
Consumer	30		708		738		109,884		110,622
Total Non-PCI loans and leases	$	31,440	$	16,058	$	47,498	$	14,259,463	$	14,306,961

	December 31, 2015
	30 - 89		90 or More
	Days		Days		Total
	Past Due		Past Due		Past Due		Current		Total
	(In thousands)
Real estate mortgage:
Commercial	$	3,947	$	13,075	$	17,022	$	4,534,936	$	4,551,958
Residential	3,391		905		4,296		1,131,809		1,136,105
Total real estate mortgage	7,338		13,980		21,318		5,666,745		5,688,063
Real estate construction and land:
Commercial	—		—		—		343,360		343,360
Residential	—		—		—		184,360		184,360
Total real estate construction and land	—		—		—		527,720		527,720
Commercial:
Cash flow	2,048		1,427		3,475		3,058,793		3,062,268
Asset-based	1		—		1		2,547,532		2,547,533
Venture capital	250		700		950		1,451,477		1,452,427
Equipment finance	359		94		453		889,896		890,349
Total commercial	2,658		2,221		4,879		7,947,698		7,952,577
Consumer	626		1,307		1,933		118,916		120,849
Total Non-PCI loans and leases	$	10,622	$	17,508	$	28,130	$	14,261,079	$	14,289,209

Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables

The following table presents the composition of our impaired loans and leases as of the dates indicated:

	March 31, 2016						December 31, 2015
			Performing		Total				Performing		Total
	Nonaccrual		Restructured		Impaired		Nonaccrual		Restructured		Impaired
	Loans/Leases		Loans		Loans/Leases		Loans/Leases		Loans		Loans/Leases
	(In thousands)
Real estate mortgage	$	36,164	$	55,124	$	91,288	$	57,277	$	27,133	$	84,410
Real estate construction and land	370		7,575		7,945		372		7,631		8,003
Commercial	92,958		3,901		96,859		69,839		5,221		75,060
Consumer	926		229		1,155		1,531		197		1,728
Total	$	130,418	$	66,829	$	197,247	$	129,019	$	40,182	$	169,201

The following table presents our nonaccrual and performing Non‑PCI loans and leases by portfolio segment and class as of the dates indicated:

	March 31, 2016						December 31, 2015
	Nonaccrual		Performing		Total		Nonaccrual		Performing		Total
	(In thousands)
Real estate mortgage:
Commercial	$	30,357	$	4,522,604	$	4,552,961	$	52,363	$	4,499,595	$	4,551,958
Residential	5,807		1,071,529		1,077,336		4,914		1,131,191		1,136,105
Total real estate mortgage	36,164		5,594,133		5,630,297		57,277		5,630,786		5,688,063
Real estate construction and land:
Commercial	—		305,529		305,529		—		343,360		343,360
Residential	370		269,574		269,944		372		183,988		184,360
Total real estate construction and land	370		575,103		575,473		372		527,348		527,720
Commercial:
Cash flow	39,665		3,126,149		3,165,814		15,800		3,046,468		3,062,268
Asset-based	2,046		2,586,870		2,588,916		2,505		2,545,028		2,547,533
Venture capital	—		1,502,611		1,502,611		124		1,452,303		1,452,427
Equipment finance	51,247		681,981		733,228		51,410		838,939		890,349
Total commercial	92,958		7,897,611		7,990,569		69,839		7,882,738		7,952,577
Consumer	926		109,696		110,622		1,531		119,318		120,849
Total Non-PCI loans and leases	$	130,418	$	14,176,543	$	14,306,961	$	129,019	$	14,160,190	$	14,289,209

CV of Loans Held for Investment by class by performing and nonperforming

The following table presents the credit risk rating categories for Non‑PCI loans and leases by portfolio segment and class as of the dates indicated. Nonclassified loans and leases are those with a credit risk rating of either pass or special mention, while classified loans and leases are those with a credit risk rating of either substandard or doubtful.

	March 31, 2016						December 31, 2015
	Classified		Nonclassified		Total		Classified		Nonclassified		Total
	(In thousands)
Real estate mortgage:
Commercial	$	65,532	$	4,487,429	$	4,552,961	$	98,436	$	4,453,522	$	4,551,958
Residential	18,361		1,058,975		1,077,336		12,627		1,123,478		1,136,105
Total real estate mortgage	83,893		5,546,404		5,630,297		111,063		5,577,000		5,688,063
Real estate construction and land:
Commercial	558		304,971		305,529		571		342,789		343,360
Residential	1,382		268,562		269,944		1,395		182,965		184,360
Total real estate construction and land	1,940		573,533		575,473		1,966		525,754		527,720
Commercial:
Cash flow	209,108		2,956,706		3,165,814		183,726		2,878,542		3,062,268
Asset-based	22,236		2,566,680		2,588,916		19,340		2,528,193		2,547,533
Venture capital	14,889		1,487,722		1,502,611		19,105		1,433,322		1,452,427
Equipment finance	51,247		681,981		733,228		54,054		836,295		890,349
Total commercial	297,480		7,693,089		7,990,569		276,225		7,676,352		7,952,577
Consumer	1,385		109,237		110,622		2,500		118,349		120,849
Total Non-PCI loans and leases	$	384,698	$	13,922,263	$	14,306,961	$	391,754	$	13,897,455	$	14,289,209

Troubled Debt Restructurings on Financing Receivables

The following tables present new troubled debt restructurings of Non-PCI loans for the periods indicated:

	Three Months Ended March 31,
	2016					2015
		Pre-		Post-			Pre-		Post-
		Modification		Modification			Modification		Modification
		Outstanding		Outstanding			Outstanding		Outstanding
	Number	Recorded		Recorded		Number	Recorded		Recorded
Troubled Debt Restructurings:	of Loans	Investment		Investment		of Loans	Investment		Investment
	(Dollars in thousands)
Real estate mortgage:
Commercial	4	$	3,140	$	3,140	9	$	5,161	$	5,113
Residential	1	165		165		5	913		773
Real estate construction and land:
Commercial	—	—		—		1	2,610		2,610
Commercial:
Cash flow	4	257		257		4	761		582
Asset-based	2	629		629		6	1,399		1,399
Equipment finance	2	2,660		2,660		4	4,133		4,133
Consumer	1	60		60		1	91		91
Total	14	$	6,911	$	6,911	30	$	15,068	$	14,701

Subsequently Defaulted Trouble Debt Restructurings

The following tables present troubled debt restructurings that subsequently defaulted for the periods indicated:

	Three Months Ended March 31,
	2016				2015
Troubled Debt Restructurings	Number	Recorded			Number	Recorded
That Subsequently Defaulted:	of Loans	Investment(1)			of Loans	Investment(1)
	(Dollars in thousands)
Real estate mortgage:
Commercial	1	$	230		1	$	1,511
Residential	—	—			1	8
Commercial - Asset-based	—	—			1	385
Total	1	$	230	(2)	3	$	1,904	(3)

_________________________

(1) The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.

(2) Represents the balance at March 31, 2016, and there were no charge-offs.

(3) Represents the balance at March 31, 2015, and is net of charge-offs of $772,000.

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period

The following tables present a summary of the activity in the allowance for loan and lease losses on Non‑PCI loans and leases by portfolio segment and PCI loans for the periods indicated:

	Three Months Ended March 31, 2016
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	36,654		$	7,137		$	61,082		$	661		$	105,534		$	9,577		$	115,111
Charge-offs	(737		)	—			(4,045		)	(591		)	(5,373		)	(163		)	(5,536		)
Recoveries	999			152			314			16			1,481			—			1,481
Provision (negative provision)	(7,817		)	(413		)	26,606			789			19,165			140			19,305
Balance, end of period	$	29,099		$	6,876		$	83,957		$	875		$	120,807		$	9,554		$	130,361
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,954		$	21		$	27,902		$	163		$	30,040
Collectively evaluated for impairment	$	27,145		$	6,855		$	56,055		$	712		$	90,767
Acquired loans with deteriorated credit quality																$	9,554
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	90,830		$	7,945		$	96,614		$	1,102		$	196,491
Collectively evaluated for impairment	$	5,539,467		$	567,528		$	7,893,955		$	109,520		$	14,110,470
Acquired loans with deteriorated credit quality																$	176,556
Ending balance of
loans and leases	$	5,630,297		$	575,473		$	7,990,569		$	110,622		$	14,306,961		$	176,556		$	14,483,517

	Three Months Ended March 31, 2015
				Real Estate
	Real Estate			Construction									Total			Total
	Mortgage			and Land			Commercial			Consumer			Non-PCI			PCI			Total
	(In thousands)
Allowance for Loan and
Lease Losses:
Balance, beginning of period	$	25,097		$	4,248		$	39,858		$	1,253		$	70,456		$	13,999		$	84,455
Charge-offs	(1,453		)	—			(8,395		)	(63		)	(9,911		)	(579		)	(10,490		)
Recoveries	1,295			632			410			194			2,531			11			2,542
Provision (negative provision)	5,972			(2,707		)	13,921			(582		)	16,604			(733		)	15,871
Balance, end of period	$	30,911		$	2,173		$	45,794		$	802		$	79,680		$	12,698		$	92,378
Amount of the allowance
applicable to loans and leases:
Individually evaluated for impairment	$	1,500		$	55		$	10,493		$	178		$	12,226
Collectively evaluated for impairment	$	29,411		$	2,118		$	35,301		$	624		$	67,454
Acquired loans with deteriorated credit quality																$	12,698
The ending balance of the
loan and lease portfolio is
composed of loans and leases:
Individually evaluated for impairment	$	59,733		$	8,639		$	103,208		$	3,729		$	175,309
Collectively evaluated for impairment	$	5,528,697		$	320,070		$	5,903,859		$	89,946		$	11,842,572
Acquired loans with deteriorated credit quality																$	254,285
Ending balance of
loans and leases	$	5,588,430		$	328,709		$	6,007,067		$	93,675		$	12,017,881		$	254,285		$	12,272,166

Non Purchased Credit Impaired Loans and Leases

Accounts, Notes, Loans and Financing Receivable [Line Items]

Impaired Financing Receivables, Average Balances And Interest Income Recognized

The following tables present information regarding our Non‑PCI impaired loans and leases by portfolio segment and class as of and for the dates indicated:

	March 31, 2016						December 31, 2015
			Unpaid						Unpaid
	Recorded		Principal		Related		Recorded		Principal		Related
	Investment		Balance		Allowance		Investment		Balance		Allowance
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	25,440	$	26,632	$	1,206	$	17,967	$	19,219	$	777
Residential	4,198		4,352		748		2,278		2,435		681
Real estate construction and land:
Residential	743		743		21		747		747		26
Commercial:
Cash flow	37,894		44,786		9,965		14,072		20,312		7,079
Asset-based	3,696		4,250		1,973		3,901		4,423		2,511
Equipment finance	51,247		58,862		15,964		11,193		11,894		8,032
Consumer	359		365		163		365		372		157
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	55,460	$	65,094			$	58,678	$	68,333
Residential	6,190		12,347				5,487		11,406
Real estate construction and land:
Commercial	7,202		7,197				7,256		7,256
Commercial:
Cash flow	2,841		5,188				2,825		5,121
Asset-based	1,181		1,176				2,729		2,726
Venture capital	—		—				124		125
Equipment finance	—		—				40,216		44,194
Consumer	796		1,904				1,363		1,945
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	91,288	$	108,425	$	1,954	$	84,410	$	101,393	$	1,458
Real estate construction and land	7,945		7,940		21		8,003		8,003		26
Commercial	96,859		114,262		27,902		75,060		88,795		17,622
Consumer	1,155		2,269		163		1,728		2,317		157
Total	$	197,247	$	232,896	$	30,040	$	169,201	$	200,508	$	19,263

	Three Months Ended March 31,
	2016				2015
	Weighted		Interest		Weighted		Interest
	Average		Income		Average		Income
	Balance(1)		Recognized		Balance(1)		Recognized
	(In thousands)
With An Allowance Recorded:
Real estate mortgage:
Commercial	$	19,471	$	243	$	11,917	$	148
Residential	4,198		24		2,796		7
Real estate construction and land:
Commercial	—		—		403		5
Residential	743		4		759		4
Commercial:
Cash flow	20,823		12		16,028		11
Asset-based	3,696		27		4,693		33
Equipment finance	49,322		—		4,581		—
Consumer	341		3		383		4
With No Related Allowance Recorded:
Real estate mortgage:
Commercial	$	54,132	$	217	$	36,704	$	74
Residential	5,405		14		5,187		6
Real estate construction and land:
Commercial	7,202		62		7,457		271
Residential	—		—		20		—
Commercial:
Cash flow	2,683		1		3,845		46
Asset-based	1,181		15		7,435		48
Equipment finance	—		—		7,537		—
Consumer	797		—		3,345		—
Total Non-PCI Loans and Leases With and Without an Allowance Recorded:
Real estate mortgage	$	83,206	$	498	$	56,604	$	235
Real estate construction and land	7,945		66		8,639		280
Commercial	77,705		55		44,119		138
Consumer	1,138		3		3,728		4
Total	$	169,994	$	622	$	113,090	$	657

_________________________

(1) For Non-PCI loans and leases reported as impaired at March 31, 2016 and 2015, amounts were calculated based on the period of time such loans and leases were impaired during the reported period.

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Foreclosed Assets (Tables)

3 Months Ended

Mar. 31, 2016

Other Real Estate Owned Net Covered and NonCovered Including Foreclosed Assets [Abstract]

Other Real Estate and Foreclosed Assets

The following table summarizes foreclosed assets as of the dates indicated:

	March 31,		December 31,
Property Type:	2016		2015
	(In thousands)
Commercial real estate	$	—	$	487
Construction and land development	13,800		13,801
Single family residence	897		952
Total other real estate owned, net	14,697		15,240
Other foreclosed assets	3,613		6,880
Total foreclosed assets, net	$	18,310	$	22,120

Other Foreclosed Assets Rollforward

The following table presents the changes in foreclosed assets, net of the valuation allowance, for the period indicated:

	Foreclosed
	Assets
	(In thousands)
Balance, December 31, 2015	$	22,120
Foreclosures	129
Provision for losses	—
Reductions related to sales	(3,939		)
Balance, March 31, 2016	$	18,310

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Borrowings and Subordinated Debentures (Tables)

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Schedule of Debt

The following table summarizes our borrowings as of the dates indicated:

	March 31, 2016				December 31, 2015
	Amount		Rate		Amount		Rate
	(Dollars in thousands)
Non‑recourse debt	$	1,401	6.20	%	$	3,914	5.49	%
FHLB overnight advances	550,000		0.48	%	618,000		0.27	%
Total borrowings	$	551,401			$	621,914

Borrowings Subordinated Debentures And Brokered Deposits Disclosure

The following table summarizes the terms of each issuance of subordinated debentures outstanding as of the dates indicated:

	March 31, 2016					December 31, 2015					Date	Maturity	Rate Index
Series:	Amount			Rate		Amount			Rate		Issued	Date	(Quarterly Reset)
	(Dollars in thousands)
Trust V	$	10,310		3.74	%	$	10,310		3.63	%	8/15/2003	9/17/2033	3 month LIBOR + 3.10
Trust VI	10,310			3.68	%	10,310			3.39	%	9/3/2003	9/15/2033	3 month LIBOR + 3.05
Trust CII	5,155			3.59	%	5,155			3.35	%	9/17/2003	9/17/2033	3 month LIBOR + 2.95
Trust VII	61,856			3.37	%	61,856			3.07	%	2/5/2004	4/23/2034	3 month LIBOR + 2.75
Trust CIII	20,619			2.32	%	20,619			2.20	%	8/15/2005	9/15/2035	3 month LIBOR + 1.69
Trust FCCI	16,495			2.23	%	16,495			2.11	%	1/25/2007	3/15/2037	3 month LIBOR + 1.60
Trust FCBI	10,310			2.18	%	10,310			2.06	%	9/30/2005	12/15/2035	3 month LIBOR + 1.55
Trust CS 2005-1	82,475			2.58	%	82,475			2.46	%	11/21/2005	12/15/2035	3 month LIBOR + 1.95
Trust CS 2005-2	128,866			2.57	%	128,866			2.27	%	12/14/2005	1/30/2036	3 month LIBOR + 1.95
Trust CS 2006-1	51,545			2.57	%	51,545			2.27	%	2/22/2006	4/30/2036	3 month LIBOR + 1.95
Trust CS 2006-2	51,550			2.57	%	51,550			2.27	%	9/27/2006	10/30/2036	3 month LIBOR + 1.95
Trust CS 2006-3 (1)	29,335			1.88	%	28,007			1.98	%	9/29/2006	10/30/2036	3 month EURIBOR + 2.05
Trust CS 2006-4	16,470			2.57	%	16,470			2.27	%	12/5/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2006-5	6,650			2.57	%	6,650			2.27	%	12/19/2006	1/30/2037	3 month LIBOR + 1.95
Trust CS 2007-2	39,177			2.57	%	39,177			2.27	%	6/13/2007	7/30/2037	3 month LIBOR + 1.95
Gross subordinated debentures	541,123					539,795
Unamortized discount (2)	(102,400		)			(103,795		)
Net subordinated debentures	$	438,723				$	436,000

___________________

(1) Denomination is in Euros with a value of €25.8 million.

(2) Amount represents the fair value adjustment on subordinated debentures assumed in acquisitions.

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments Disclosure

The following table presents a summary of the financial instruments described above as of the dates indicated:

	March 31,		December 31,
	2016		2015
	(In thousands)
Loan commitments to extend credit	$	3,812,544	$	3,580,655
Standby letters of credit	217,610		210,292
Commitments to purchase equipment being acquired for lease to others	—		6,663
	$	4,030,154	$	3,797,610

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

The following tables present information on the assets measured and recorded at fair value on a recurring basis as of the dates indicated:

	Fair Value Measurements as of
	March 31, 2016
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	653,865	$	—	$	653,865	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	443,732		—		443,732		—
Covered private label CMOs	27,863		—		—		27,863
Other private label CMOs	107,382		—		60,030		47,352
Municipal securities	1,517,592		—		1,517,592		—
Corporate debt securities	45,483		—		45,483		—
Collateralized loan obligations	139,572		—		139,572		—
SBA securities	202,674		—		202,674		—
Asset-backed and other securities	102,423		2,551		83,156		16,716
Total securities available-for-sale	3,240,586		2,551		3,146,104		91,931
Derivative assets	6,654		—		6,654		—
Equity warrants	5,033		—		—		5,033
Total recurring assets	$	3,252,273	$	2,551	$	3,152,758	$	96,964
Derivative liabilities	$	2,079	$	—	$	2,079	$	—

	Fair Value Measurements as of
	December 31, 2015
Measured on a Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Securities available‑for‑sale:
Government agency and government‑sponsored enterprise
pass-through securities	$	767,797	$	—	$	767,797	$	—
Government agency and government‑sponsored enterprise
collateralized mortgage obligations	486,239		—		486,239		—
Covered private label CMOs	29,782		—		—		29,782
Other private label CMOs	115,014		—		63,555		51,459
Municipal securities	1,547,331		—		1,547,331		—
US Treasury securities	69,380		69,380		—		—
Corporate debt securities	48,424		—		48,424		—
Collateralized loan obligations	132,189		—		132,189		—
SBA securities	211,157		—		211,157		—
Government‑sponsored enterprise debt securities	36,913		—		36,913		—
Asset-backed and other securities	115,211		2,562		94,449		18,200
Total securities available-for-sale	3,559,437		71,942		3,388,054		99,441
Derivative assets	11,919		—		11,919		—
Equity warrants	4,914		—		—		4,914
Total recurring assets	$	3,576,270	$	71,942	$	3,399,973	$	104,355
Derivative liabilities	$	1,397	$	—	$	1,397	$	—

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques

The following table presents information about quantitative inputs and assumptions used to determine the fair values provided by our third party pricing service for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis as of March 31, 2016:

	Private Label CMOs		Asset-Backed Securities
		Weighted		Weighted
	Range	Average	Range	Average
Unobservable Inputs:	of Inputs	Input	of Inputs	Input
Voluntary annual prepayment speeds	1.5% - 22.4%	10.5%	5% - 40%	14.2%
Annual default rates	0.3% - 13.7%	2.4%	1% - 8%	3.7%
Loss severity rates	0% - 96.9%	32.6%	10% - 91%	51.8%
Discount rates	0.8% - 57.3%	3.8%	1.8% - 5.2%	3.4%

Fair Value, Assets Measured on Recurring Basis, Significant Unobservable Inputs (Level 3) Reconciliation

The following table summarizes activity for our Level 3 private label CMOs and asset-backed securities available-for-sale measured at fair value on a recurring basis for the period indicated:

	Private			Asset-Backed
	Label CMOs			Securities
	(In thousands)
Balance, December 31, 2015	$	81,241		$	18,200
Total included in earnings	353			15
Total included in other comprehensive income	(1,251		)	(12		)
Net settlements	(5,128		)	(1,487		)
Balance, March 31, 2016	$	75,215		$	16,716

Assets carried at fair value on a nonrecurring basis

The following tables present assets measured at fair value on a non‑recurring basis as of the dates indicated:

	Fair Value Measurement as of
	March 31, 2016
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	95,310	$	—	$	2,121	$	93,189

	Fair Value Measurement as of
	December 31, 2015
Measured on a Non‑Recurring Basis:	Total		Level 1		Level 2		Level 3
	(In thousands)
Impaired Non‑PCI loans	$	40,817	$	—	$	9,367	$	31,450
Other real estate owned	14,101		—		14,101		—
Investments carried at cost	107		—		—		107
Total non-recurring	$	55,025	$	—	$	23,468	$	31,557

Net Losses (Gains) on Nonrecurring Assets

The following table presents losses recognized on assets measured on a nonrecurring basis for the periods indicated:

	Three Months Ended
	March 31,
Losses on Assets Measured on a Non‑Recurring Basis:	2016			2015
	(In thousands)
Impaired Non‑PCI loans	$	(12,909	)	$	(9,192	)
Other real estate owned	—			(124		)
Total loss	$	(12,909	)	$	(9,316	)

Fair Value Inputs, Assets, Quantitative Information

The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a nonrecurring basis as of March 31, 2016:

			Valuation	Unobservable		Weighted
Asset:	Fair Value		Technique	Inputs	Range	Average
	(In thousands)
Impaired Non-PCI loans	$	52,516	Discounted cash flows	Discount rates	0% - 9.04%	6.33%
Impaired Non-PCI loans	38,910		Third party appraisals	Discounts	10.00% - 28.44%	25.25%
Impaired Non-PCI loans	1,763		Third party appraisals	No discounts
Total non-recurring Level 3	$	93,189

Fair Value, by Balance Sheet Grouping

The following tables present a summary of the carrying values and estimated fair values of certain financial instruments as of the dates indicated:

	March 31, 2016
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,977	$	161,977	$	161,977	$	—	$	—
Interest‑earning deposits in financial institutions	357,541		357,541		357,541		—		—
Securities available‑for‑sale	3,240,586		3,240,586		2,551		3,146,104		91,931
Investment in FHLB stock	17,250		17,250		—		17,250		—
Investments carried at cost	1,990		4,950		—		—		4,950
Loans and leases, net	14,353,156		14,337,455		—		2,121		14,335,334
Derivative assets	6,654		6,654		—		6,654		—
Equity warrants	5,033		5,033		—		—		5,033
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,956,102		11,956,102		—		11,956,102		—
Time deposits	3,485,273		3,484,782		—		3,484,782		—
Borrowings	551,401		551,401		550,000		1,401		—
Subordinated debentures	438,723		421,669		—		421,669		—
Derivative liabilities	2,079		2,079		—		2,079		—

	December 31, 2015
	Carrying or Contract		Estimated Fair Value
	Amount		Total		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets:
Cash and due from banks	$	161,020	$	161,020	$	161,020	$	—	$	—
Interest‑earning deposits in financial institutions	235,466		235,466		235,466		—		—
Securities available‑for‑sale	3,559,437		3,559,437		71,942		3,388,054		99,441
Investment in FHLB stock	19,710		19,710		—		19,710		—
Investments carried at cost	2,267		6,789		—		—		6,789
Loans and leases, net	14,363,143		14,393,558		—		9,367		14,384,191
Derivative assets	11,919		11,919		—		11,919		—
Equity warrants	4,914		4,914		—		—		4,914
Financial Liabilities:
Deposits:
Demand, money market, interest checking, and savings deposits	11,513,826		11,513,826		—		11,513,826		—
Time deposits	4,152,356		4,152,920		—		4,152,920		—
Borrowings	621,914		622,438		618,000		4,438		—
Subordinated debentures	436,000		419,762		—		419,762		—
Derivative liabilities	1,397		1,397		—		1,397		—

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Net Income Per Share

The following table presents the computations of basic and diluted net earnings per share for the periods indicated:

	Three Months Ended
	March 31,			December 31,			March 31,
	2016			2015			2015
	(Dollars in thousands, except per share data)
Basic Earnings Per Share:
Net earnings	$	90,456		$	71,841		$	73,079
Less: Earnings allocated to unvested restricted stock (1)	(1,067		)	(690		)	(819		)
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares and unvested restricted
stock outstanding	121,598			120,385			103,035
Less: Weighted-average unvested restricted stock outstanding	(1,392		)	(1,133		)	(1,122		)
Weighted-average basic shares outstanding	120,206			119,252			101,913
Basic earnings per share	$	0.74		$	0.60		$	0.71
Diluted Earnings Per Share:
Net earnings allocated to common shares	$	89,389		$	71,151		$	72,260
Weighted-average basic shares outstanding	120,206			119,252			101,913
Diluted earnings per share	$	0.74		$	0.60		$	0.71

________________________

(1) Represents cash dividends paid to holders of unvested restricted stock, net of estimated forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.

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Organization (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) acquisition bank_branch	Dec. 31, 2015 USD ($)
General Introduction [Abstract]
Assets	$ 21,031,009	$ 21,288,490
Gross loans and leases	14,500,000
Total deposits	15,441,375	15,666,182
Total stockholders' equity	$ 4,456,592	4,397,691
Number of businesses acquired | acquisition	28
Outstanding lease balance disposed	$ (139,000)
Accumulated Deficit
General Introduction [Abstract]
Total stockholders' equity	$ 104,363	$ 13,907
CapitalSource Inc.
General Introduction [Abstract]
Business Acquisition, Effective Date of Acquisition		Apr. 07, 2014
NORTH CAROLINA
General Introduction [Abstract]
Retail Branch Locations | bank_branch	1
CALIFORNIA
General Introduction [Abstract]
Retail Branch Locations | bank_branch	79

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Acquisitions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Business Combinations [Abstract]
Severance and employee-related	$ 0	$ 10,500	$ 0
System conversion and integration	200	3,802	0
Asset write-downs, lease terminations and other facilities-related	0	125	0
Investment banking deal costs	0	0	1,050
Other (legal, accounting, insurance, consulting)	0	3,173	950
Total acquisition, integration and reorganization costs	$ 200	$ 17,600	$ 2,000

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Acquisitions Textual (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Oct. 06, 2015
Business Acquisition [Line Items]
Goodwill	$ 2,175,791	$ 2,176,291
Square 1 Financial, Inc.
Business Acquisition [Line Items]
Assets acquired			$ 4,600,000
Liabilities assumed			3,800,000
Goodwill			$ 447,900

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Goodwill and Other Intangible Assets (Details)	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
Balance, December 31, 2015	$ 2,176,291,000
Reduction due to sale of PWEF leasing unit	(500,000)
Balance, March 31, 2016	$ 2,175,791,000

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Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
CDI and CRI Balance, beginning of period	$ 95,524	$ 53,090	$ 53,090
Additions	0	45,426	0
Fully amortized portion	0	(2,992)	0
Reduction due to sale of PWEF leasing unit	(1,363)	0	0
CDI and CRI Balance, end of period	93,824	95,524	53,090
Accumulated Amortization, beginning of period	(42,304)	(40,386)	(35,886)
Amortization	(4,746)	(4,910)	(1,501)
Accumulated Amortization, end of period	(45,687)	(42,304)	(37,387)
Net CDI and CRI, end of period	48,137	53,220	15,703
CDI and CRI
Finite-Lived Intangible Assets [Line Items]
Fully amortized portion	0	(2,992)	0
Reduction due to sale of PWEF leasing unit	$ (1,700)	$ 0	$ 0

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Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Intangible asset amortization	$ 4,746	$ 4,910	$ 1,501
Aggregate Amortization Expense 2016	11,500
Aggregate Amortization Expense 2017	8,800
Aggregate Amortization Expense 2018	6,700
Aggregate Amortization Expense 2019	4,700
Aggregate Amortization Expense 2020	$ 3,000
Scenario, Forecast
Finite-Lived Intangible Assets [Line Items]
Intangible asset amortization				$ 16,100

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Investment Securities (Details 1) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	$ 3,158,551	$ 3,512,385
Available-for-sale Securities, Gross Unrealized Gain	92,003	62,157
Available-for-sale Securities, Gross Unrealized Loss	(9,968)	(15,105)
Securities available‑for‑sale	3,240,586	3,559,437
Government agency and government-sponsored enterprise pass through securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	642,233	759,881
Available-for-sale Securities, Gross Unrealized Gain	12,865	12,075
Available-for-sale Securities, Gross Unrealized Loss	(1,233)	(4,159)
Securities available‑for‑sale	653,865	767,797
Government agency and government-sponsored enterprise collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	431,456	486,065
Available-for-sale Securities, Gross Unrealized Gain	12,515	3,584
Available-for-sale Securities, Gross Unrealized Loss	(239)	(3,410)
Securities available‑for‑sale	443,732	486,239
Covered private label collateralized mortgage obligation
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	23,026	24,113
Available-for-sale Securities, Gross Unrealized Gain	5,064	5,794
Available-for-sale Securities, Gross Unrealized Loss	(227)	(125)
Securities available‑for‑sale	27,863	29,782
Other Private Label Collateralized Mortgage Obligations
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	108,019	115,952
Available-for-sale Securities, Gross Unrealized Gain	246	43
Available-for-sale Securities, Gross Unrealized Loss	(883)	(981)
Securities available‑for‑sale	107,382	115,014
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	1,457,795	1,508,968
Available-for-sale Securities, Gross Unrealized Gain	59,886	39,435
Available-for-sale Securities, Gross Unrealized Loss	(89)	(1,072)
Securities available‑for‑sale	1,517,592	1,547,331
US Treasury Securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	0	70,196
Available-for-sale Securities, Gross Unrealized Gain	0	0
Available-for-sale Securities, Gross Unrealized Loss	0	(816)
Securities available‑for‑sale	0	69,380
Corporate Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	47,269	49,047
Available-for-sale Securities, Gross Unrealized Gain	303	327
Available-for-sale Securities, Gross Unrealized Loss	(2,089)	(950)
Securities available‑for‑sale	45,483	48,424
Collateralized Loan Obligations
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	142,637	133,192
Available-for-sale Securities, Gross Unrealized Gain	42	128
Available-for-sale Securities, Gross Unrealized Loss	(3,107)	(1,131)
Securities available‑for‑sale	139,572	132,189
Asset-backed Securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	201,934	211,946
Available-for-sale Securities, Gross Unrealized Gain	947	41
Available-for-sale Securities, Gross Unrealized Loss	(207)	(830)
Securities available‑for‑sale	202,674	211,157
US Government-sponsored Enterprises Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	0	36,302
Available-for-sale Securities, Gross Unrealized Gain	0	611
Available-for-sale Securities, Gross Unrealized Loss	0	0
Securities available‑for‑sale	0	36,913
Asset-backed and other securities
Schedule of Available-for-sale Securities [Line Items]
Total securities available-for-sale	104,182	116,723
Available-for-sale Securities, Gross Unrealized Gain	135	119
Available-for-sale Securities, Gross Unrealized Loss	(1,894)	(1,631)
Securities available‑for‑sale	$ 102,423	$ 115,211

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Investment Securities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 594,960	$ 1,377,664
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(8,067)	(13,632)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	56,074	41,832
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(1,901)	(1,473)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	651,034	1,419,496
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(9,968)	(15,105)
Government agency and government-sponsored enterprise pass through securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	196,388	391,642
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(1,135)	(3,893)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,422	9,342
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(98)	(266)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	205,810	400,984
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(1,233)	(4,159)
Government agency and government-sponsored enterprise collateralized mortgage obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	33,702	314,284
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(239)	(2,769)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	14,230
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	(641)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	33,702	328,514
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(239)	(3,410)
Covered private label collateralized mortgage obligation
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,239	1,354
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(98)	(57)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	849	568
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(129)	(68)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,088	1,922
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(227)	(125)
Other Private Label Collateralized Mortgage Obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	59,407	92,179
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(838)	(943)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,029	1,070
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(45)	(38)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	60,436	93,249
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(883)	(981)
Municipal securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	18,108	126,892
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(55)	(1,061)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	5,496	531
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(34)	(11)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	23,604	127,423
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(89)	(1,072)
US Treasury Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		69,380
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss		(816)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		69,380
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss		(816)
Corporate Debt Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	28,180	29,379
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(2,089)	(950)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	28,180	29,379
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(2,089)	(950)
Collateralized Loan Obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	106,773	100,993
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(2,121)	(1,131)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	23,355	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(986)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	130,128	100,993
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(3,107)	(1,131)
Asset-backed Securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	87,150	179,942
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(207)	(830)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	87,150	179,942
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	(207)	(830)
Asset-backed and other securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	64,013	71,619
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss	(1,285)	(1,182)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	15,923	16,091
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss	(609)	(449)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	79,936	87,710
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss	$ (1,894)	$ (1,631)

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Investment Securities (Details 3) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Due in one year or less	$ 12,821
Due after one year through five years	216,420
Due after five years through ten years	603,523
Due after ten years	2,325,787
Total securities available-for-sale	3,158,551	$ 3,512,385
Fair Value Disclosures [Abstract]
Due in one year or less	12,628
Due after one year through five years	219,110
Due after five years through ten years	619,214
Due after ten years	2,389,634
Total securities available-for-sale	$ 3,240,586	$ 3,559,437

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Investment Securities (Details 4) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Taxable interest	$ 11,396	$ 12,730	$ 7,473
Non-taxable interest	10,726	10,459	3,894
Dividend income	425	459	828
Total interest income on investment securities	$ 22,547	$ 23,648	$ 12,195

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Investment Securities (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available For Sale Securities Pledged As Collateral Amortized Cost	$ 414,600,000
Payments to Acquire Investments	52,200,000	$ 196,600,000
Proceeds from Sale of Available-for-sale Securities	343,031,000	144,945,000
Available-for-sale Securities, Gross Realized Gains	8,900,000.0	3,700,000
Available-for-sale Securities, Gross Realized Losses	800,000	400,000
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds from Sale of Available-for-sale Securities	$ 334,900,000	$ 141,700,000

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Loans and Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	$ 14,542,522	$ 14,528,165
Loans and Leases Receivable, Deferred Income		(49,911)
Loans and Leases Receivable, Allowance	(130,361)	(115,111)
Total loans and leases, net	14,353,156	14,363,143
Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	14,365,915	14,339,070
Loans and Leases Receivable, Deferred Income	(58,954)	(49,861)
Loans held for investment, net	14,306,961	14,289,209	$ 12,017,881
Loans and Leases Receivable, Allowance	(120,807)	(105,534)	(79,680)	$ (70,456)
Total loans and leases, net	14,186,154	14,183,675
Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	176,607	189,095
Loans and Leases Receivable, Deferred Income	(51)	(50)
Loans held for investment, net	176,556	189,045	254,285
Loans and Leases Receivable, Allowance	(9,554)	(9,577)
Total loans and leases, net	167,002	179,468
NonPCI and PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	14,542,522	14,528,165
Loans and Leases Receivable, Deferred Income	(59,005)	(49,911)
Loans held for investment, net	14,483,517	14,478,254
Loans and Leases Receivable, Allowance	(130,361)	(115,111)
Total loans and leases, net	14,353,156	14,363,143
Mortgage Loans on Real Estate | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	5,649,282	5,706,903
Loans held for investment, net	5,630,297	5,688,063	5,588,430
Loans and Leases Receivable, Allowance	(29,099)	(36,654)	(30,911)	(25,097)
Mortgage Loans on Real Estate | Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	160,122	168,725
Mortgage Loans on Real Estate | NonPCI and PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	5,809,404	5,875,628
Real Estate Construction | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	584,968	534,307
Loans held for investment, net	575,473	527,720	328,709
Loans and Leases Receivable, Allowance	(6,876)	(7,137)	(2,173)	(4,248)
Real Estate Construction | Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	2,689	2,656
Real Estate Construction | NonPCI and PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	587,657	536,963
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	8,021,092	7,977,067
Loans held for investment, net	7,990,569	7,952,577	6,007,067
Loans and Leases Receivable, Allowance	(83,957)	(61,082)	(45,794)	(39,858)
Commercial Portfolio Segment | Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	13,513	17,415
Commercial Portfolio Segment | NonPCI and PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	8,034,605	7,994,482
Consumer Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	110,573	120,793
Loans held for investment, net	110,622	120,849	93,675
Loans and Leases Receivable, Allowance	(875)	(661)	$ (802)	$ (1,253)
Consumer Portfolio Segment | Purchased Credit Impaired Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	283	299
Consumer Portfolio Segment | NonPCI and PCI Loans
Financing Receivable, Recorded Investment [Line Items]
Gross loans and leases	$ 110,856	$ 121,092

XML

Loans and Leases (Details 1) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Delinquent loans in loan portfolio
30-89 Days Past Due	$ 13,700	$ 3,600
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	13,500	16,800
Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	31,440	10,622
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	16,058	17,508
Financing Receivable, Recorded Investment, Past Due	47,498	28,130
Current	14,259,463	14,261,079
Loans held for investment, net	14,306,961	14,289,209	$ 12,017,881
Mortgage Loans on Real Estate | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	18,842	7,338
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	11,197	13,980
Financing Receivable, Recorded Investment, Past Due	30,039	21,318
Current	5,600,258	5,666,745
Loans held for investment, net	5,630,297	5,688,063	5,588,430
Mortgage Loans on Real Estate | Commercial Real Estate | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	16,655	3,947
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	10,638	13,075
Financing Receivable, Recorded Investment, Past Due	27,293	17,022
Current	4,525,668	4,534,936
Loans held for investment, net	4,552,961	4,551,958
Mortgage Loans on Real Estate | Residential Real Estate | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	2,187	3,391
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	559	905
Financing Receivable, Recorded Investment, Past Due	2,746	4,296
Current	1,074,590	1,131,809
Loans held for investment, net	1,077,336	1,136,105
Real Estate Construction | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Past Due	0	0
Current	575,473	527,720
Loans held for investment, net	575,473	527,720	328,709
Real Estate Construction | Commercial Real Estate Construction Loan Receivable | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Past Due	0	0
Current	305,529	343,360
Loans held for investment, net	305,529	343,360
Real Estate Construction | Residential Real Estate Construction Financing Receivable | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Past Due	0	0
Current	269,944	184,360
Loans held for investment, net	269,944	184,360
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	12,568	2,658
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	4,153	2,221
Financing Receivable, Recorded Investment, Past Due	16,721	4,879
Current	7,973,848	7,947,698
Loans held for investment, net	7,990,569	7,952,577	6,007,067
Commercial Portfolio Segment | Cash Flow | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	766	2,048
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	2,013	1,427
Financing Receivable, Recorded Investment, Past Due	2,779	3,475
Current	3,163,035	3,058,793
Loans held for investment, net	3,165,814	3,062,268
Commercial Portfolio Segment | Asset Based | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	4	1
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Past Due	4	1
Current	2,588,912	2,547,532
Loans held for investment, net	2,588,916	2,547,533
Commercial Portfolio Segment | Venture Capital Loans | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	9,554	250
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	700
Financing Receivable, Recorded Investment, Past Due	9,554	950
Current	1,493,057	1,451,477
Loans held for investment, net	1,502,611	1,452,427
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	2,244	359
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	2,140	94
Financing Receivable, Recorded Investment, Past Due	4,384	453
Current	728,844	889,896
Loans held for investment, net	733,228	890,349
Consumer Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Delinquent loans in loan portfolio
30-89 Days Past Due	30	626
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	708	1,307
Financing Receivable, Recorded Investment, Past Due	738	1,933
Current	109,884	118,916
Loans held for investment, net	$ 110,622	$ 120,849	$ 93,675

XML

Loans and Leases (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 130,418	$ 129,019
Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	130,418	129,019
Loans and Leases Receivable, Net of Deferred Income	14,306,961	14,289,209	$ 12,017,881
Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	14,176,543	14,160,190
Consumer Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	926	1,531
Loans and Leases Receivable, Net of Deferred Income	110,622	120,849	93,675
Consumer Portfolio Segment | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	109,696	119,318
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	92,958	69,839
Loans and Leases Receivable, Net of Deferred Income	7,990,569	7,952,577	6,007,067
Commercial Portfolio Segment | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	7,897,611	7,882,738
Commercial Portfolio Segment | Venture Capital Loans | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	124
Loans and Leases Receivable, Net of Deferred Income	1,502,611	1,452,427
Commercial Portfolio Segment | Venture Capital Loans | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,502,611	1,452,303
Commercial Portfolio Segment | Asset Based | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,046	2,505
Loans and Leases Receivable, Net of Deferred Income	2,588,916	2,547,533
Commercial Portfolio Segment | Asset Based | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,586,870	2,545,028
Commercial Portfolio Segment | Cash Flow | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	39,665	15,800
Loans and Leases Receivable, Net of Deferred Income	3,165,814	3,062,268
Commercial Portfolio Segment | Cash Flow | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	3,126,149	3,046,468
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	51,247	51,410
Loans and Leases Receivable, Net of Deferred Income	733,228	890,349
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	681,981	838,939
Real Estate Construction | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	370	372
Loans and Leases Receivable, Net of Deferred Income	575,473	527,720	328,709
Real Estate Construction | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	575,103	527,348
Real Estate Construction | Commercial Real Estate Construction Loan Receivable | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Net of Deferred Income	305,529	343,360
Real Estate Construction | Commercial Real Estate Construction Loan Receivable | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	305,529	343,360
Real Estate Construction | Residential Real Estate Construction Financing Receivable | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	370	372
Loans and Leases Receivable, Net of Deferred Income	269,944	184,360
Real Estate Construction | Residential Real Estate Construction Financing Receivable | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	269,574	183,988
Mortgage Loans on Real Estate | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	36,164	57,277
Loans and Leases Receivable, Net of Deferred Income	5,630,297	5,688,063	$ 5,588,430
Mortgage Loans on Real Estate | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	5,594,133	5,630,786
Mortgage Loans on Real Estate | Commercial Real Estate | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	30,357	52,363
Loans and Leases Receivable, Net of Deferred Income	4,552,961	4,551,958
Mortgage Loans on Real Estate | Commercial Real Estate | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	4,522,604	4,499,595
Mortgage Loans on Real Estate | Residential Real Estate | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	5,807	4,914
Loans and Leases Receivable, Net of Deferred Income	1,077,336	1,136,105
Mortgage Loans on Real Estate | Residential Real Estate | Performing Financing Receivable [Member] | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Impaired [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 1,071,529	$ 1,131,191

XML

Loans and Leases (Details 3) - Non Purchased Credit Impaired Loans and Leases - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 14,306,961	$ 14,289,209	$ 12,017,881
Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	384,698	391,754
Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	13,922,263	13,897,455
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	110,622	120,849	93,675
Consumer Portfolio Segment | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,385	2,500
Consumer Portfolio Segment | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	109,237	118,349
Commercial Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	7,990,569	7,952,577	6,007,067
Commercial Portfolio Segment | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	297,480	276,225
Commercial Portfolio Segment | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	7,693,089	7,676,352
Commercial Portfolio Segment | Cash Flow
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	3,165,814	3,062,268
Commercial Portfolio Segment | Cash Flow | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	209,108	183,726
Commercial Portfolio Segment | Cash Flow | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,956,706	2,878,542
Commercial Portfolio Segment | Asset Based
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,588,916	2,547,533
Commercial Portfolio Segment | Asset Based | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	22,236	19,340
Commercial Portfolio Segment | Asset Based | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,566,680	2,528,193
Commercial Portfolio Segment | Venture Capital Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,502,611	1,452,427
Commercial Portfolio Segment | Venture Capital Loans | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	14,889	19,105
Commercial Portfolio Segment | Venture Capital Loans | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,487,722	1,433,322
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	733,228	890,349
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	51,247	54,054
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	681,981	836,295
Real Estate Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	575,473	527,720	328,709
Real Estate Construction | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,940	1,966
Real Estate Construction | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	573,533	525,754
Real Estate Construction | Commercial Real Estate Construction Loan Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	305,529	343,360
Real Estate Construction | Commercial Real Estate Construction Loan Receivable | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	558	571
Real Estate Construction | Commercial Real Estate Construction Loan Receivable | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	304,971	342,789
Real Estate Construction | Residential Real Estate Construction Financing Receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	269,944	184,360
Real Estate Construction | Residential Real Estate Construction Financing Receivable | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,382	1,395
Real Estate Construction | Residential Real Estate Construction Financing Receivable | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	268,562	182,965
Mortgage Loans on Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	5,630,297	5,688,063	$ 5,588,430
Mortgage Loans on Real Estate | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	83,893	111,063
Mortgage Loans on Real Estate | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	5,546,404	5,577,000
Mortgage Loans on Real Estate | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	4,552,961	4,551,958
Mortgage Loans on Real Estate | Commercial Real Estate | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	65,532	98,436
Mortgage Loans on Real Estate | Commercial Real Estate | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	4,487,429	4,453,522
Mortgage Loans on Real Estate | Residential Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	1,077,336	1,136,105
Mortgage Loans on Real Estate | Residential Real Estate | Classified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	18,361	12,627
Mortgage Loans on Real Estate | Residential Real Estate | Nonclassified
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 1,058,975	$ 1,123,478

XML

Loans and Leases (Details 4) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 130,418	$ 129,019
Non Purchased Credit Impaired Loans and Leases
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	130,418	129,019
Impaired Financing Receivable Performing Restructured Loans	66,829	40,182
Impaired Financing Receivable, Recorded Investment	197,247	169,201
Consumer Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	926	1,531
Impaired Financing Receivable Performing Restructured Loans	229	197
Impaired Financing Receivable, Recorded Investment	1,155	1,728
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	92,958	69,839
Impaired Financing Receivable Performing Restructured Loans	3,901	5,221
Impaired Financing Receivable, Recorded Investment	96,859	75,060
Real Estate Construction | Non Purchased Credit Impaired Loans and Leases
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	370	372
Impaired Financing Receivable Performing Restructured Loans	7,575	7,631
Impaired Financing Receivable, Recorded Investment	7,945	8,003
Mortgage Loans on Real Estate | Non Purchased Credit Impaired Loans and Leases
Schedule Of Non Accrual and Performing Restructured Impaired Financing Receivables [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	36,164	57,277
Impaired Financing Receivable Performing Restructured Loans	55,124	27,133
Impaired Financing Receivable, Recorded Investment	$ 91,288	$ 84,410

XML

Loans and Leases (Details 5) - Non Purchased Credit Impaired Loans and Leases - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance		$ 30,040		$ 19,263
Impaired Financing Receivable, Recorded Investment		197,247		169,201
Impaired Financing Receivable, Unpaid Principal Balance		232,896		200,508
Impaired Financing Receivable, Average Recorded Investment	[1]	169,994	$ 113,090
Impaired Financing Receivable, Interest Income, Accrual Method		622	657
Consumer Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		359		365
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		365		372
Impaired Financing Receivable, Related Allowance		163		157
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		796		1,363
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		1,904		1,945
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	341	383
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		3	4
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	797	3,345
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		0	0
Impaired Financing Receivable, Recorded Investment		1,155		1,728
Impaired Financing Receivable, Unpaid Principal Balance		2,269		2,317
Impaired Financing Receivable, Average Recorded Investment	[1]	1,138	3,728
Impaired Financing Receivable, Interest Income, Accrual Method		3	4
Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance		27,902		17,622
Impaired Financing Receivable, Recorded Investment		96,859		75,060
Impaired Financing Receivable, Unpaid Principal Balance		114,262		88,795
Impaired Financing Receivable, Average Recorded Investment	[1]	77,705	44,119
Impaired Financing Receivable, Interest Income, Accrual Method		55	138
Real Estate Construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance		21		26
Impaired Financing Receivable, Recorded Investment		7,945		8,003
Impaired Financing Receivable, Unpaid Principal Balance		7,940		8,003
Impaired Financing Receivable, Average Recorded Investment	[1]	7,945	8,639
Impaired Financing Receivable, Interest Income, Accrual Method		66	280
Mortgage Loans on Real Estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance		1,954		1,458
Impaired Financing Receivable, Recorded Investment		91,288		84,410
Impaired Financing Receivable, Unpaid Principal Balance		108,425		101,393
Impaired Financing Receivable, Average Recorded Investment	[1]	83,206	56,604
Impaired Financing Receivable, Interest Income, Accrual Method		498	235
Commercial Real Estate | Mortgage Loans on Real Estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		25,440		17,967
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		26,632		19,219
Impaired Financing Receivable, Related Allowance		1,206		777
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		55,460		58,678
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		65,094		68,333
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	19,471	11,917
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		243	148
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	54,132	36,704
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		217	74
Residential Real Estate | Mortgage Loans on Real Estate
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		4,198		2,278
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,352		2,435
Impaired Financing Receivable, Related Allowance		748		681
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		6,190		5,487
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		12,347		11,406
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		4,198	2,796
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		24	7
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	5,405	5,187
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		14	6
Commercial Real Estate Construction Loan Receivable | Real Estate Construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		7,202		7,256
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		7,197		7,256
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	0	403
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		0	5
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	7,202	7,457
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		62	271
Residential Real Estate Construction Financing Receivable | Real Estate Construction
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		743		747
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		743		747
Impaired Financing Receivable, Related Allowance		21		26
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	743	759
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		4	4
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	0	20
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		0	0
Cash Flow | Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		37,894		14,072
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		44,786		20,312
Impaired Financing Receivable, Related Allowance		9,965		7,079
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		2,841		2,825
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		5,188		5,121
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	20,823	16,028
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		12	11
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	2,683	3,845
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		1	46
Asset Based | Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		3,696		3,901
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		4,250		4,423
Impaired Financing Receivable, Related Allowance		1,973		2,511
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		1,181		2,729
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		1,176		2,726
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	3,696	4,693
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		27	33
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	1,181	7,435
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		15	48
Venture Capital Loans | Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0		124
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0		125
Equipment Finance Commercial Financing Receivable | Commercial Portfolio Segment
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		51,247		11,193
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		58,862		11,894
Impaired Financing Receivable, Related Allowance		15,964		8,032
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		0		40,216
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0		$ 44,194
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	[1]	49,322	4,581
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method		0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	[1]	0	7,537
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method		$ 0	$ 0

[1] For Non-PCI loans and leases reported as impaired at March 31, 2016 and 2015, amounts were calculated based on the period of time such loans and leases were impaired during the reported period.

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Loans and Leases (Details 6) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Contract	Mar. 31, 2015 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	1	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 230	$ 1,904	[1],[2]
Financing Receivable, Modifications, Number of Contracts | Contract	14	30
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 6,911	$ 15,068
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 6,911	$ 14,701
Mortgage Loans on Real Estate | Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 230	$ 1,511
Financing Receivable, Modifications, Number of Contracts	4	9
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 3,140	$ 5,161
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 3,140	$ 5,113
Mortgage Loans on Real Estate | Residential Real Estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 8
Financing Receivable, Modifications, Number of Contracts	1	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 165	$ 913
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 165	$ 773
Real Estate Construction | Commercial Real Estate Construction Loan Receivable
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 2,610
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 2,610
Commercial Portfolio Segment | Cash Flow
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract	4	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 257	$ 761
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 257	$ 582
Commercial Portfolio Segment | Asset Based
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 385
Financing Receivable, Modifications, Number of Contracts | Contract	2	6
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 629	$ 1,399
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 629	$ 1,399
Commercial Portfolio Segment | Equipment Finance Commercial Financing Receivable
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract	2	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 2,660	$ 4,133
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,660	$ 4,133
Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Contract	1	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 60	$ 91
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 60	$ 91

[1] Represents the balance at March 31, 2015, and is net of charge-offs of $772,000.

[2] The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.

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Loans and Leases (Details 7	3 Months Ended
	Mar. 31, 2016 USD ($) Contract	Mar. 31, 2015 USD ($) Contract		Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	$ 130,361,000			$ 115,111,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 772,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	1	3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 230,000	$ 1,904,000	[1],[2]
Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	120,807,000	79,680,000		105,534,000	$ 70,456,000
Allowance for Loan and Lease Losses, Write-offs	(5,373,000)	(9,911,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	1,481,000	2,531,000
Provision for Loan and Lease Losses	19,165,000	16,604,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	30,040,000	12,226,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	90,767,000	67,454,000
Financing Receivable, Individually Evaluated for Impairment	196,491,000	175,309,000
Financing Receivable, Collectively Evaluated for Impairment	14,110,470,000	11,842,572,000
Loans and Leases Receivable, Net of Deferred Income	14,306,961,000	12,017,881,000		14,289,209,000
Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	9,554,000			9,577,000
Loans and Leases Receivable, Allowance, Covered	9,554,000	12,698,000		9,577,000	13,999,000
Allowance for Loan and Lease Losses, Write-offs	(163,000)	(579,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	0	11,000
Provision for Loan and Lease Losses	140,000	(733,000)
Receivables Acquired With Deteriorated Credit Quality, Allowance For Credit Losses	9,554,000	12,698,000
Receivables Acquired with Deteriorated Credit Quality	176,556,000	254,285,000
Loans and Leases Receivable, Net of Deferred Income	176,556,000	254,285,000		189,045,000
NonPCI and PCI Loans
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	130,361,000			115,111,000
Loans and Leases Receivable Allowance Covered And Noncovered	130,361,000	92,378,000		115,111,000	84,455,000
Allowance for Loan and Lease Losses, Write-offs	(5,536,000)	(10,490,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	1,481,000	2,542,000
Provision for Loan and Lease Losses	19,305,000	15,871,000
Loans and Leases Receivable, Net of Deferred Income	14,483,517,000			14,478,254,000
Loans and Leases Receivable Net Of Deferred Income Covered And Noncovered	14,483,517,000	12,272,166,000
Consumer Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	875,000	802,000		661,000	1,253,000
Allowance for Loan and Lease Losses, Write-offs	(591,000)	(63,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	16,000	194,000
Provision for Loan and Lease Losses	789,000	(582,000)
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	163,000	178,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	712,000	624,000
Financing Receivable, Individually Evaluated for Impairment	1,102,000	3,729,000
Financing Receivable, Collectively Evaluated for Impairment	109,520,000	89,946,000
Loans and Leases Receivable, Net of Deferred Income	$ 110,622,000	$ 93,675,000		120,849,000
Commercial Portfolio Segment | Asset Based
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Contract	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 0	$ 385,000
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	83,957,000	45,794,000		61,082,000	39,858,000
Allowance for Loan and Lease Losses, Write-offs	(4,045,000)	(8,395,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	314,000	410,000
Provision for Loan and Lease Losses	26,606,000	13,921,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	27,902,000	10,493,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	56,055,000	35,301,000
Financing Receivable, Individually Evaluated for Impairment	96,614,000	103,208,000
Financing Receivable, Collectively Evaluated for Impairment	7,893,955,000	5,903,859,000
Loans and Leases Receivable, Net of Deferred Income	7,990,569,000	6,007,067,000		7,952,577,000
Commercial Portfolio Segment | Non Purchased Credit Impaired Loans and Leases | Asset Based
Financing Receivable, Modifications [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,588,916,000			2,547,533,000
Real Estate Construction | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	6,876,000	2,173,000		7,137,000	4,248,000
Allowance for Loan and Lease Losses, Write-offs	0	0
Allowance for Loan and Lease Loss, Recovery of Bad Debts	152,000	632,000
Provision for Loan and Lease Losses	(413,000)	(2,707,000)
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	21,000	55,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	6,855,000	2,118,000
Financing Receivable, Individually Evaluated for Impairment	7,945,000	8,639,000
Financing Receivable, Collectively Evaluated for Impairment	567,528,000	320,070,000
Loans and Leases Receivable, Net of Deferred Income	575,473,000	328,709,000		527,720,000
Mortgage Loans on Real Estate | Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Modifications [Line Items]
Allowance for loan and lease losses	29,099,000	30,911,000		36,654,000	$ 25,097,000
Allowance for Loan and Lease Losses, Write-offs	(737,000)	(1,453,000)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	999,000	1,295,000
Provision for Loan and Lease Losses	(7,817,000)	5,972,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,954,000	1,500,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	27,145,000	29,411,000
Financing Receivable, Individually Evaluated for Impairment	90,830,000	59,733,000
Financing Receivable, Collectively Evaluated for Impairment	5,539,467,000	5,528,697,000
Loans and Leases Receivable, Net of Deferred Income	$ 5,630,297,000	$ 5,588,430,000		$ 5,688,063,000

[1] Represents the balance at March 31, 2015, and is net of charge-offs of $772,000.

[2] The population of defaulted restructured loans for the period indicated includes only those loans restructured during the preceding 12-month period. The table excludes defaulted troubled restructurings in those classes for which the recorded investment was zero at the end of the period.

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Loans and Leases (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Receivables [Abstract]
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 772,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing			$ 700,000
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	13,500,000		16,800,000
Financing Receivable Recorded Investment Thirty to Eighty Nine Days Past Due	13,700,000		3,600,000
Financing Receivable Recorded Investment Nonaccrual Status Current	103,200,000		108,600,000
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 130,418,000		$ 129,019,000

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Foreclosed Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Other Real Estate Owned Net	$ 14,697	$ 15,240
Other Foreclosed Assets NonCovered	3,613	6,880
Other Real Estate Owned Net Noncovered including Foreclosed Assets	18,310	22,120
Other Real Estate Owned Net Covered and Noncovered including Foreclosed Assets	18,310	22,120
Commercial Real Estate
Other Real Estate Owned Net	0
Construction and Land Development
Other Real Estate Owned Net	13,800
Residential Mortgage
Other Real Estate Owned Net	$ 897
NonCovered | Commercial Real Estate
Other Real Estate Owned Net		487
NonCovered | Construction and Land Development
Other Real Estate Owned Net		13,801
NonCovered | Residential Mortgage
Other Real Estate Owned Net		$ 952

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Foreclosed Assets (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Foreclosed Assets Rollforward [Abstract]
Balance, December 31, 2015	$ 22,120
Foreclosures	129	$ 394
Provision for losses	0
Reductions related to sales	(3,939)
Balance, March 31, 2016	$ 18,310

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Borrowings and Subordinated Debentures (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Borrowings	$ 551,401,000	$ 621,914,000
Notes Payable, Other Payables
Debt Instrument [Line Items]
Non-Recourse Debt	$ 1,401,000	$ 3,914,000
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	6.20%	5.49%
Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	0.48%	0.27%
Federal Home Loan Bank Advances | Secured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	$ 550,000,000	$ 618,000,000

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Borrowings and Subordinated Debentures (Details 1) $ in Thousands, € in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2016 EUR (€)
Subordinated Borrowing [Line Items]
Subordinated debentures		$ 438,723	$ 436,000
Subordinated Debt Trust V Due September 2033
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 10,310	$ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.74%	3.63%	3.74%
Debt Instrument Date Issued		Aug. 15, 2003
Debt Instrument, Maturity Date		Sep. 17, 2033
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 3.10
Subordinated Debt Trust VI Due September 2033
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 10,310	$ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.68%	3.39%	3.68%
Debt Instrument Date Issued		Sep. 03, 2003
Debt Instrument, Maturity Date		Sep. 15, 2033
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 3.05
Subordinated Debt Trust CII Due September 2033
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 5,155	$ 5,155
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.59%	3.35%	3.59%
Debt Instrument Date Issued		Sep. 17, 2003
Debt Instrument, Maturity Date		Sep. 17, 2033
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 2.95
Subordinated Debt Trust VII Due April 2034
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 61,856	$ 61,856
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		3.37%	3.07%	3.37%
Debt Instrument Date Issued		Feb. 05, 2004
Debt Instrument, Maturity Date		Apr. 23, 2034
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 2.75
Subordinated Debt Trust CIII Due September 2035
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 20,619	$ 20,619
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.32%	2.20%	2.32%
Debt Instrument Date Issued		Aug. 15, 2005
Debt Instrument, Maturity Date		Sep. 15, 2035
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.69
Subordinated Debt Trust FCCI Due March 2037
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 16,495	$ 16,495
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.23%	2.11%	2.23%
Debt Instrument Date Issued		Jan. 25, 2007
Debt Instrument, Maturity Date		Mar. 15, 2037
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.60
Subordinated Debt Trust FCBI Due December 2035
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 10,310	$ 10,310
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.18%	2.06%	2.18%
Debt Instrument Date Issued		Sep. 30, 2005
Debt Instrument, Maturity Date		Dec. 15, 2035
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.55
Trust Preferred Securities Two Thousand Five Series One
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 82,475	$ 82,475
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.58%	2.46%	2.58%
Debt Instrument Date Issued		Nov. 21, 2005
Debt Instrument, Maturity Date		Dec. 15, 2035
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Trust Preferred Securities Two Thousand Five Series Two
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 128,866	$ 128,866
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Dec. 14, 2005
Debt Instrument, Maturity Date		Jan. 30, 2036
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Two Thousand Six One Term Debt Securitization
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 51,545	$ 51,545
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Feb. 22, 2006
Debt Instrument, Maturity Date		Apr. 30, 2036
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Two Thousand Six Two Term Debt Securitization
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 51,550	$ 51,550
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Sep. 27, 2006
Debt Instrument, Maturity Date		Oct. 30, 2036
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Trust Preferred Securities Two Thousand Six Series Three
Subordinated Borrowing [Line Items]
Long-term Debt, Gross	[1]	$ 29,335	$ 28,007
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		1.88%	1.98%	1.88%
Debt Instrument Date Issued		Sep. 29, 2006
Debt Instrument, Maturity Date		Oct. 30, 2036
Debt Instrument, Basis Spread on Variable Rate		3 month EURIBOR + 2.05
Liability, Reporting Currency Denominated, Value | €				€ 25.8
Trust Preferred Securities Two Thousand Six Series Four
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 16,470	$ 16,470
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Dec. 05, 2006
Debt Instrument, Maturity Date		Jan. 30, 2037
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Trust Preferred Securities Two Thousand Six Series Five
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 6,650	$ 6,650
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Dec. 19, 2006
Debt Instrument, Maturity Date		Jan. 30, 2037
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Two Thousand Seven One Term Debt Securitization
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 39,177	$ 39,177
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate		2.57%	2.27%	2.57%
Debt Instrument Date Issued		Jun. 13, 2007
Debt Instrument, Maturity Date		Jul. 30, 2037
Debt Instrument, Basis Spread on Variable Rate		3 month LIBOR + 1.95
Subordinated Debt
Subordinated Borrowing [Line Items]
Long-term Debt, Gross		$ 541,123	$ 539,795
Debt Instrument, Unamortized Discount	[2]	(102,400)	(103,795)
Subordinated debentures		$ 438,723	$ 436,000
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust V Due September 2033
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.74%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust VI Due September 2033
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.68%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust CII Due September 2033
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.59%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust VII Due April 2034
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.37%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust CIII Due September 2035
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.32%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust FCCI Due March 2037
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.23%
London Interbank Offered Rate (LIBOR) | Subordinated Debt Trust FCBI Due December 2035
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.18%
London Interbank Offered Rate (LIBOR) | Trust Preferred Securities Two Thousand Five Series One
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.58%
London Interbank Offered Rate (LIBOR) | Trust Preferred Securities Two Thousand Five Series Two
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
London Interbank Offered Rate (LIBOR) | Two Thousand Six One Term Debt Securitization
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
London Interbank Offered Rate (LIBOR) | Two Thousand Six Two Term Debt Securitization
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
London Interbank Offered Rate (LIBOR) | Trust Preferred Securities Two Thousand Six Series Four
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
London Interbank Offered Rate (LIBOR) | Trust Preferred Securities Two Thousand Six Series Five
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
London Interbank Offered Rate (LIBOR) | Two Thousand Seven One Term Debt Securitization
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.57%
Euribor Future | Trust Preferred Securities Two Thousand Six Series Three
Subordinated Borrowing [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.88%

[1] Denomination is in Euros with a value of €25.8 million.

[2] Amount represents the fair value adjustment on subordinated debentures assumed in acquisitions.

XML

Borrowings and Subordinated Debentures (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt Instruments Weighted Average Remaining Maturity Period	2 years 3 months
Unsecured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 80,000,000
Unused lines of Credit
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	0	$ 0
American Financial Exchange
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	0
Federal Home Loan Bank of San Francisco | Unsecured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Borrowing Capacity, Description	99,000,000
Line of Credit Facility, Amount Outstanding	0
Federal Reserve Bank Advances
Debt Instrument [Line Items]
Line of Credit Facility, Borrowing Capacity, Description	2,100,000,000
Line of Credit Facility, Amount Outstanding	0	0
Loans Pledged as Collateral	3,000,000,000
Federal Home Loan Bank Advances | Secured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Borrowing Capacity, Description	2,300,000,000
Line of Credit Facility, Amount Outstanding	$ 550,000,000	$ 618,000,000

XML

Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2014	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Loan commitments to extend credit	$ 3,812,544	$ 3,580,655
Standby letters of credit	217,610		$ 210,292
Commitments to purchase equipment being acquired for lease to others	0	$ 6,663
Total	$ 4,030,154		$ 3,797,610

XML

Commitments and Contingencies (Details Textual) $ in Millions	Mar. 31, 2016 USD ($) fund	Dec. 31, 2015 USD ($) fund
Long-term Purchase Commitment [Line Items]
Commitment To Contribute Capital	$ 21.5	$ 19.2
Private Equity Funds
Long-term Purchase Commitment [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$ 2.9	$ 2.8
Number of funds | fund	19	11

XML

Fair Value Measurements (Details 1) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities available‑for‑sale	$ 3,240,586	$ 3,559,437
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Level 1
Securities available‑for‑sale		71,942
Level 2
Securities available‑for‑sale		3,388,054
Level 3
Securities available‑for‑sale		99,441
Government agency and government-sponsored enterprise pass through securities
Securities available‑for‑sale	653,865	767,797
Government agency and government-sponsored enterprise collateralized mortgage obligations
Securities available‑for‑sale	443,732	486,239
Covered private label collateralized mortgage obligation
Securities available‑for‑sale	27,863	29,782
Municipal securities
Securities available‑for‑sale	1,517,592	1,547,331
US Treasury Securities
Securities available‑for‑sale	0	69,380
Asset-backed Securities
Securities available‑for‑sale	202,674	211,157
Corporate Debt Securities
Securities available‑for‑sale	45,483	48,424
Collateralized Loan Obligations
Securities available‑for‑sale	139,572	132,189
US Government-sponsored Enterprises Debt Securities
Securities available‑for‑sale	0	36,913
Asset-backed and other securities
Securities available‑for‑sale	102,423	115,211
Fair Value, Measurements, Recurring
Securities available‑for‑sale	3,240,586	3,559,437
Derivative Asset, Fair Value of Collateral	6,654	11,919
Assets, Fair Value Disclosure, Recurring	3,252,273	3,576,270
Derivative Liability, Fair Value of Collateral	2,079	1,397
Fair Value, Measurements, Recurring | Level 1
Securities available‑for‑sale	2,551	71,942
Derivative Asset, Fair Value of Collateral	0	0
Warrants Not Settleable in Cash, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure, Recurring	2,551	71,942
Derivative Liability, Fair Value of Collateral	0	0
Fair Value, Measurements, Recurring | Level 2
Securities available‑for‑sale	3,146,104	3,388,054
Derivative Asset, Fair Value of Collateral	6,654	11,919
Warrants Not Settleable in Cash, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure, Recurring	3,152,758	3,399,973
Derivative Liability, Fair Value of Collateral	2,079	1,397
Fair Value, Measurements, Recurring | Level 3
Securities available‑for‑sale	91,931	99,441
Derivative Asset, Fair Value of Collateral	0	0
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Assets, Fair Value Disclosure, Recurring	96,964	104,355
Derivative Liability, Fair Value of Collateral	0	0
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise pass through securities
Securities available‑for‑sale		767,797
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise pass through securities | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise pass through securities | Level 2
Securities available‑for‑sale	653,865	767,797
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise pass through securities | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise collateralized mortgage obligations
Securities available‑for‑sale		486,239
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise collateralized mortgage obligations | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise collateralized mortgage obligations | Level 2
Securities available‑for‑sale	443,732	486,239
Fair Value, Measurements, Recurring | Government agency and government-sponsored enterprise collateralized mortgage obligations | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Covered private label collateralized mortgage obligation
Securities available‑for‑sale		29,782
Fair Value, Measurements, Recurring | Covered private label collateralized mortgage obligation | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Covered private label collateralized mortgage obligation | Level 2
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Covered private label collateralized mortgage obligation | Level 3
Securities available‑for‑sale	27,863	29,782
Fair Value, Measurements, Recurring | Other Private Label Collateralized Mortgage Obligations
Securities available‑for‑sale		115,014
Fair Value, Measurements, Recurring | Other Private Label Collateralized Mortgage Obligations | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Other Private Label Collateralized Mortgage Obligations | Level 2
Securities available‑for‑sale	60,030	63,555
Fair Value, Measurements, Recurring | Other Private Label Collateralized Mortgage Obligations | Level 3
Securities available‑for‑sale	47,352	51,459
Fair Value, Measurements, Recurring | Municipal securities
Securities available‑for‑sale		1,547,331
Fair Value, Measurements, Recurring | Municipal securities | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Municipal securities | Level 2
Securities available‑for‑sale	1,517,592	1,547,331
Fair Value, Measurements, Recurring | Municipal securities | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | US Treasury Securities | Level 1
Securities available‑for‑sale		69,380
Fair Value, Measurements, Recurring | US Treasury Securities | Level 2
Securities available‑for‑sale		0
Fair Value, Measurements, Recurring | US Treasury Securities | Level 3
Securities available‑for‑sale		0
Fair Value, Measurements, Recurring | Asset-backed Securities | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Asset-backed Securities | Level 2
Securities available‑for‑sale	202,674	211,157
Fair Value, Measurements, Recurring | Asset-backed Securities | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Corporate Debt Securities
Securities available‑for‑sale		48,424
Fair Value, Measurements, Recurring | Corporate Debt Securities | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Corporate Debt Securities | Level 2
Securities available‑for‑sale	45,483	48,424
Fair Value, Measurements, Recurring | Corporate Debt Securities | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Collateralized Loan Obligations | Level 1
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | Collateralized Loan Obligations | Level 2
Securities available‑for‑sale	139,572	132,189
Fair Value, Measurements, Recurring | Collateralized Loan Obligations | Level 3
Securities available‑for‑sale	0	0
Fair Value, Measurements, Recurring | US Government-sponsored Enterprises Debt Securities
Securities available‑for‑sale		36,913
Fair Value, Measurements, Recurring | US Government-sponsored Enterprises Debt Securities | Level 1
Securities available‑for‑sale		0
Fair Value, Measurements, Recurring | US Government-sponsored Enterprises Debt Securities | Level 2
Securities available‑for‑sale		36,913
Fair Value, Measurements, Recurring | US Government-sponsored Enterprises Debt Securities | Level 3
Securities available‑for‑sale		0
Fair Value, Measurements, Recurring | Asset-backed and other securities
Securities available‑for‑sale		115,211
Fair Value, Measurements, Recurring | Asset-backed and other securities | Level 1
Securities available‑for‑sale	2,551	2,562
Fair Value, Measurements, Recurring | Asset-backed and other securities | Level 2
Securities available‑for‑sale	83,156	94,449
Fair Value, Measurements, Recurring | Asset-backed and other securities | Level 3
Securities available‑for‑sale	$ 16,716	$ 18,200

XML

Fair Value Measurements (Details 2) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants, Acquired From Acquisition		$ 4,914
Level 3 CMO Roll Forward [Abstract]
Gain on Sale of Investments	$ (274)
Proceeds from Issuance of Warrants	42
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants	435
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Level 3 | Fair Value, Measurements, Recurring
Level 3 CMO Roll Forward [Abstract]
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Level 3 | Private Label CMOs | Fair Value, Measurements, Recurring
Level 3 CMO Roll Forward [Abstract]
Balance, December 31, 2015	81,241
Total included in earnings	353
Total included in other comprehensive income	(1,251)
Net settlements	(5,128)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	75,215	81,241
Level 3 | Asset-backed and other securities | Fair Value, Measurements, Recurring
Level 3 CMO Roll Forward [Abstract]
Balance, December 31, 2015	18,200
Total included in earnings	15
Total included in other comprehensive income	(12)
Net settlements	(1,487)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 16,716	$ 18,200
Level 3 | Minimum | Private Label CMOs | Fair Value, Measurements, Recurring
Unobservable Inputs Quantitative Information [Abstract]
Fair Value Inputs, Prepayment Rate	0.00%
Fair Value Inputs, Probability of Default	0.00%
Fair Value Inputs, Loss Severity	0.00%
Fair Value Inputs, Discount Rate	0.00%
Level 3 | Maximum | Private Label CMOs | Fair Value, Measurements, Recurring
Unobservable Inputs Quantitative Information [Abstract]
Fair Value Inputs, Prepayment Rate	22.44%
Fair Value Inputs, Probability of Default	13.73%
Fair Value Inputs, Loss Severity	96.94%
Fair Value Inputs, Discount Rate	57.25%
Level 3 | Weighted Average | Private Label CMOs | Fair Value, Measurements, Recurring
Unobservable Inputs Quantitative Information [Abstract]
Fair Value Inputs, Prepayment Rate	10.50%
Fair Value Inputs, Probability of Default	2.40%
Fair Value Inputs, Loss Severity	32.60%
Fair Value Inputs, Discount Rate	3.80%

XML

Fair Value Measurements (Details 3) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 55,025
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		23,468
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 93,189	31,557
Non Purchased Credit Impaired Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	95,310	40,817
Non Purchased Credit Impaired Loans and Leases | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Non Purchased Credit Impaired Loans and Leases | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		9,367
Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 93,189	31,450
Other real estate and foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		14,101
Other real estate and foreclosed assets | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Other real estate and foreclosed assets | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		14,101
Cost-method Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		107
Cost-method Investments | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Cost-method Investments | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Cost-method Investments | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		107
Third party appraisals | Other real estate and foreclosed assets | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 0

XML

Fair Value Measurements (Details 4) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ (12,909)	$ (9,316)
Non Purchased Credit Impaired Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ (12,909)	(9,192)
Other real estate and foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets		$ (124)

XML

Fair Value Measurements (Details 5) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 55,025
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 93,189	31,557
Non Purchased Credit Impaired Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	95,310	40,817
Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 93,189	31,450
Cost-method Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		107
Cost-method Investments | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		$ 107
Minimum | Discounted Cash Flow | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	0.00%
Minimum | Third party appraisals | Other Real Estate Owned | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	27.60%
Maximum | Discounted Cash Flow | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	9.04%
Maximum | Third party appraisals | Other Real Estate Owned | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	43.90%
Weighted Average | Discounted Cash Flow | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	5.98%
Weighted Average | Third party appraisals | Other Real Estate Owned | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	32.90%
Discount Rates | Discounted Cash Flow | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 52,516
Discounts | Third party appraisals | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	38,910
No Discounts | Third party appraisals | Non Purchased Credit Impaired Loans and Leases | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 1,763

XML

Fair Value Measurements (Details 6) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	$ 161,977	$ 161,020
Interest-earning deposits in financial institutions	357,541	235,466
Securities available-for-sale, at fair value	3,240,586	3,559,437
Available-for-sale Securities	3,240,586	3,559,437
Federal Home Loan Bank stock, at cost	17,250	19,710
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	17,250	19,710
Cost Method Investments	1,990	2,267
Cost Method Investments, Fair Value Disclosure	4,950	6,789
Loans and leases, net	14,353,156	14,363,143
Loans Receivable, Fair Value Disclosure	14,337,455
Derivative Asset	6,654	11,919
Deposits, Savings Deposits	11,956,102	11,513,826
Time Deposits	3,485,273	4,152,356
Deposits, Fair Value Disclosure	3,484,782	4,152,920
Borrowings	551,401	621,914
Borrowed Funds		621,914
Long-term Debt, Fair Value	551,401	622,438
Subordinated debentures	438,723	436,000
Subordinated Debt Obligations, Fair Value Disclosure	421,669	419,762
Derivative Liability		1,397
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	161,977	161,020
Interest-earning deposits in financial institutions	357,541	235,466
Available-for-sale Securities		71,942
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	0	0
Cost Method Investments, Fair Value Disclosure	0	0
Deposits, Savings Deposits	0	0
Deposits, Fair Value Disclosure	0	0
Long-term Debt, Fair Value	550,000	618,000
Subordinated Debt Obligations, Fair Value Disclosure	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0	0
Interest-earning deposits in financial institutions	0	0
Available-for-sale Securities		3,388,054
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	17,250	19,710
Cost Method Investments, Fair Value Disclosure	0	0
Deposits, Savings Deposits	11,956,102	11,513,826
Deposits, Fair Value Disclosure	3,484,782	4,152,920
Long-term Debt, Fair Value	1,401	4,438
Subordinated Debt Obligations, Fair Value Disclosure	421,669	419,762
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	0	0
Interest-earning deposits in financial institutions	0	0
Available-for-sale Securities		99,441
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	0	0
Cost Method Investments, Fair Value Disclosure	4,950	6,789
Loans Receivable, Fair Value Disclosure	14,335,334
Deposits, Savings Deposits	0	0
Deposits, Fair Value Disclosure	0	0
Long-term Debt, Fair Value	0	0
Subordinated Debt Obligations, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	3,240,586	3,559,437
Derivative Asset, Fair Value of Collateral	6,654	11,919
Derivative Liability, Fair Value of Collateral	2,079	1,397
Fair Value, Measurements, Recurring | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	2,551	71,942
Derivative Asset, Fair Value of Collateral	0	0
Derivative Liability, Fair Value of Collateral	0	0
Warrants Not Settleable in Cash, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	3,146,104	3,388,054
Derivative Asset, Fair Value of Collateral	6,654	11,919
Derivative Liability, Fair Value of Collateral	2,079	1,397
Warrants Not Settleable in Cash, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities	91,931	99,441
Derivative Asset, Fair Value of Collateral	0	0
Derivative Liability, Fair Value of Collateral	0	0
Warrants Not Settleable in Cash, Fair Value Disclosure	5,033	4,914
Fair Value, Measurements, Nonrecurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		55,025
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring		23,468
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	93,189	31,557
Non Purchased Credit Impaired Loans and Leases | Fair Value, Measurements, Nonrecurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	95,310	40,817
Non Purchased Credit Impaired Loans and Leases | Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	0
Assets, Fair Value Disclosure, Nonrecurring		0
Non Purchased Credit Impaired Loans and Leases | Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	2,121
Assets, Fair Value Disclosure, Nonrecurring		9,367
Non Purchased Credit Impaired Loans and Leases | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	93,189	31,450
NonPCI and PCI Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and leases, net	$ 14,353,156	14,363,143
Loans Receivable, Fair Value Disclosure		14,393,558
NonPCI and PCI Loans | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure		0
NonPCI and PCI Loans | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure		9,367
NonPCI and PCI Loans | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure		$ 14,384,191

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Fair Value Measurements (Details Textual)	Mar. 31, 2016 USD ($)
Fair Value Disclosures [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0

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Earnings Per Share (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Earnings Per Share [Abstract]
Net earnings from continuing operations		$ 90,456	$ 71,841	$ 73,079
Less: Earnings allocated to unvested restricted stock	[1]	(1,067)	(690)	(819)
Net earnings allocated to common shares		$ 89,389	$ 71,151	$ 72,260
Weighted-average basic shares and unvested restricted stock outstanding (shares)		121,598	120,385	103,035
Weighted-average unvested restricted stock outstanding (shares)		(1,392)	(1,133)	(1,122)
Weighted-average basic shares outstanding (shares)		120,206	119,252	101,913
Basic net income per share (usd per share)		$ 0.74	$ 0.60	$ 0.71
Net earnings from continuing operations allocated to common shares		$ 89,389	$ 71,151	$ 72,260
Diluted net income per share (usd per share)		$ 0.74	$ 0.60	$ 0.71

[1] Represents cash dividends paid to holders of unvested restricted stock, net of estimated forfeitures, plus undistributed earnings amounts available to holders of unvested restricted stock, if any.

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Stock Based Compensation (Details 1) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted shares (shares)	1,562,557	1,211,951
Vesting period of time-based restricted stock, lower limit	3 years
Vesting period of time-based restricted stock, higher limit	4 years
Restricted Stock | Vesting Based On Service
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense	$ 5.0	$ 3.8	$ 3.1
Restricted Stock Awards And Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized share based compensation expense	$ 51.8
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested restricted shares (shares)	153,715
PacWest 2003 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)	19,686,565
Number of shares available for grant (shares)	12,616,206

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Subsequent Events (Details Textuals) - $ / shares			3 Months Ended
	May. 16, 2016	May. 02, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Subsequent Event [Line Items]
Dividends declared per share (usd per share)			$ 0.50	$ 0.50	$ 0.5
Subsequent Event, Description			0
Subsequent Event
Subsequent Event [Line Items]
Dividends Payable, Date Declared		May 02, 2016
Dividends Payable, Date of Record	May 16, 2016
Dividend Declared [Member] | Subsequent Event
Subsequent Event [Line Items]
Dividends declared per share (usd per share)		$ 0.5