10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

[ X ] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2016

OR

[    ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from  to

Commission file number 001-31830

CATHAY GENERAL BANCORP

(Exact name of registrant as specified in its charter)

Delaware	95-4274680
(State of other jurisdiction of incorporation  or organization)	(I.R.S. Employer  Identification No.)

777 North Broadway, Los Angeles, California	90012
(Address of principal executive offices)	(Zip Code)

Registrant's telephone number, including area code: (213) 625-4700

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

     Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.                                                  Yes ☑          No ☐

     Indicate by check mark whether the registrant has submitted electronically 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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).           Yes ☑          No ☐

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

          Large accelerated filer ☑                                                                                                    Accelerated filer ☐    

          Non-accelerated filer      ☐      (Do not check if a smaller reporting company)          Smaller reporting company☐

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

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

Common stock, $.01 par value, 78,844,013 shares outstanding as of April 29, 2016.

CATHAY GENERAL BANCORP AND SUBSIDIARies

1^ST quarter 2016 REPORT ON FORM 10-Q

table of contents

PART I –	FINANCIAL INFORMATION	3
Item 1.	FINANCIAL STATEMENTS (Unaudited)	3
	NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)	6
Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.	33
Item 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	55
Item 4.	CONTROLS AND PROCEDURES.	56
PART II –	OTHER INFORMATION	56
Item 1.	LEGAL PROCEEDINGS.	56
Item 1A	RISK FACTORS.	57
Item 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS.	57
Item 3.	DEFAULTS UPON SENIOR SECURITIES.	58
Item 4.	MINE SAFETY DISCLOSURES.	58
Item 5.	OTHER INFORMATION.	58
Item 6.	EXHIBITS.	58
SIGNATURES		59

Forward-Looking Statements

In this Quarterly Report on Form 10-Q, the term “Bancorp” refers to Cathay General Bancorp and the term “Bank” refers to Cathay Bank. The terms “Company,” “we,” “us,” and “our” refer to Bancorp and the Bank collectively.

The statements in this report include forward-looking statements within the meaning of the applicable provisions of the Private Securities Litigation Reform Act of 1995 regarding management’s beliefs, projections, and assumptions concerning future results and events. We intend such forward-looking statements to be covered by the safe harbor provision for forward-looking statements in these provisions. All statements other than statements of historical fact are “forward-looking statements” for purposes of federal and state securities laws, including statements about anticipated future operating and financial performance, financial position and liquidity, growth opportunities and growth rates, growth plans, acquisition and divestiture opportunities, business prospects, strategic alternatives, business strategies, financial expectations, regulatory and competitive outlook, investment and expenditure plans, financing needs and availability, and other similar forecasts and statements of expectation and statements of assumptions underlying any of the foregoing. Words such as “aims,” “anticipates,” “believes,” “can,” “continue,” “could,” “estimates,” “expects,” “hopes,” “intends,” “may,” “optimistic,” “plans,” “potential,” “possible,” “predicts,” “projects,” “seeks,” “shall,” “should,” “will,” and variations of these words and similar expressions are intended to identify these forward-looking statements. Forward-looking statements by us are based on estimates, beliefs, projections, and assumptions of management and are not guarantees of future performance. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from our historical experience and our present expectations or projections. Such risks and uncertainties and other factors include, but are not limited to, adverse developments or conditions related to or arising from:

● U.S. and international business and economic conditions;

● possible additional provisions for loan losses and charge-offs;

● credit risks of lending activities and deterioration in asset or credit quality;

● extensive laws and regulations and supervision that we are subject to, including potential supervisory action by bank supervisory authorities;

● increased costs of compliance and other risks associated with changes in regulation, including the implementation of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”);

● higher capital requirements from the implementation of the Basel III capital standards;

● compliance with the Bank Secrecy Act and other money laundering statutes and regulations;

● potential goodwill impairment;

● liquidity risk;

● fluctuations in interest rates;

● risks associated with acquisitions and the expansion of our business into new markets;

● inflation and deflation;

● real estate market conditions and the value of real estate collateral;

● environmental liabilities;

1

● our ability to compete with larger competitors;

● our ability to retain key personnel;

● successful management of reputational risk;

● natural disasters and geopolitical events;

● general economic or business conditions in Asia, and other regions where the Bank has operations;

● failures, interruptions, or security breaches of our information systems;

● our ability to adapt our systems to technological changes;

● risk management processes and strategies;

● adverse results in legal proceedings;

● certain provisions in our charter and bylaws that may affect acquisition of the Company;

● changes in accounting standards or tax laws and regulations;

● market disruption and volatility;

● restrictions on dividends and other distributions by laws and regulations and by our regulators and our capital structure;

● issuance of preferred stock;

● successfully raising additional capital, if needed, and the resulting dilution of interests of holders of our common stock; and

● the soundness of other financial institutions.

These and other factors are further described in Bancorp’s Annual Report on Form 10-K for the year ended December 31, 2015 (Item 1A in particular), other reports and registration statements filed with the Securities and Exchange Commission (“SEC”), and other filings it makes with the SEC from time to time. Actual results in any future period may also vary from the past results discussed in this report. Given these risks and uncertainties, readers are cautioned not to place undue reliance on any forward-looking statements, which speak to the date of this report. We have no intention and undertake no obligation to update any forward-looking statement or to publicly announce any revision of any forward-looking statement to reflect future developments or events, except as required by law.

Bancorp’s filings with the SEC are available at the website maintained by the SEC at http://www.sec.gov, or by request directed to Cathay General Bancorp, 9650 Flair Drive, El Monte, California 91731, Attention: Investor Relations (626) 279-3286.

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PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED)

CATHAY GENERAL BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(In thousands, except share and per share data)	March 31, 2016			December 31, 2015
Assets
Cash and due from banks	$	192,642		$	180,130
Short-term investments and interest bearing deposits		432,384			536,880
Securities available-for-sale (amortized cost of $1,476,424 in 2016 and $1,595,723 in 2015)		1,485,124			1,586,352
Loans held for sale		-			6,676
Loans		10,363,647			10,163,452
Less:  Allowance for loan losses		(134,552	)		(138,963	)
Unamortized deferred loan fees, net		(7,585	)		(8,262	)
Loans, net		10,221,510			10,016,227
Federal Home Loan Bank stock		17,250			17,250
Other real estate owned, net		27,271			24,701
Affordable housing investments and alternative energy partnerships, net		212,795			182,943
Premises and equipment, net		108,231			108,924
Customers’ liability on acceptances		26,843			40,335
Accrued interest receivable		32,517			30,558
Goodwill		372,189			372,189
Other intangible assets, net		3,497			3,677
Other assets		129,766			147,284
Total assets	$	13,262,019		$	13,254,126
Liabilities and Stockholders’ Equity
Deposits
Non-interest-bearing demand deposits	$	2,059,073		$	2,033,048
Interest-bearing deposits:
NOW deposits		992,278			966,404
Money market deposits		1,923,114			1,905,719
Savings deposits		602,154			618,164
Time deposits		4,747,497			4,985,752
Total deposits		10,324,116			10,509,087
Securities sold under agreements to repurchase		400,000			400,000
Advances from the Federal Home Loan Bank		475,000			275,000
Other borrowings for affordable housing investments		17,792			18,593
Long-term debt		119,136			119,136
Acceptances outstanding		26,843			40,335
Other liabilities		164,459			144,197
Total liabilities		11,527,346			11,506,348
Commitments and contingencies		-			-
Stockholders’ Equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 87,047,371 issued and 78,836,728 outstanding at March 31, 2016, and 87,002,931 issued and 80,806,116 outstanding at December 31, 2015		870			870
Additional paid-in-capital		882,825			880,822
Accumulated other comprehensive loss, net		(1,073	)		(8,426	)
Retained earnings		1,091,640			1,059,660
Treasury stock, at cost (8,210,643 shares at March 31, 2016, and 6,196,815 shares at December 31, 2015)		(239,589	)		(185,148	)
Total equity		1,734,673			1,747,778
Total liabilities and equity	$	13,262,019		$	13,254,126

See accompanying notes to unaudited condensed consolidated financial statements

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CATHAY GENERAL BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND

COMPREHENSIVE INCOME

(Unaudited)

	Three months ended March 31,
	2016			2015
	(In thousands, except share and per share data)
Interest and Dividend Income
Loans receivable, including loan fees	$	114,890		$	100,100
Investment securities		6,859			3,774
Federal Home Loan Bank stock		347			581
Deposits with banks		249			479
Total interest and dividend income		122,345			104,934
Interest Expense
Time deposits		10,857			6,773
Other deposits		3,640			4,793
Securities sold under agreements to repurchase		3,934			3,925
Advances from Federal Home Loan Bank		106			93
Long-term debt		1,440			1,424
Total interest expense		19,977			17,008
Net interest income before reversal for credit losses		102,368			87,926
Reversal for loan losses		(10,500	)		(5,000	)
Net interest income after reversal for credit losses		112,868			92,926
Non-Interest Income
Securities losses, net		(206	)		(21	)
Letters of credit commissions		1,281			1,268
Depository service fees		1,323			1,301
Other operating income		5,143			6,001
Total non-interest income		7,541			8,549
Non-Interest Expense
Salaries and employee benefits		26,931			22,616
Occupancy expense		4,369			4,021
Computer and equipment expense		2,580			2,502
Professional services expense		4,368			3,370
Data processing service expense		2,250			1,982
FDIC and State assessments		2,589			2,260
Marketing expense		796			820
Other real estate owned expense		295			483
Amortization of investments in low income housing and alternative energy partnerships		2,794			2,383
Amortization of core deposit intangibles		172			177
Other operating expense		4,427			3,517
Total non-interest expense		51,571			44,131
Income before income tax expense		68,838			57,344
Income tax expense		22,675			21,364
Net income	$	46,163			35,980
Other comprehensive income, net of tax
Unrealized holding gain on securities available-for-sale		10,354			6,499
Less: reclassification adjustments included in net income		(119	)		(12	)
Unrealized holding loss on cash flow hedge derivatives		(3,120	)		(1,588	)
Total other comprehensive gain, net of tax		7,353			4,923
Total comprehensive income	$	53,516		$	40,903
Net income per common share:
Basic	$	0.58		$	0.45
Diluted	$	0.57		$	0.45
Cash dividends paid per common share	$	0.18		$	0.10
Average common shares outstanding
Basic		79,734,519			79,835,628
Diluted		80,393,849			80,309,383

See accompanying notes to unaudited condensed consolidated financial statements.

4

CATHAY GENERAL BANCORP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Three months ended March 31
	2016			2015
	(In thousands)
Cash Flows from Operating Activities
Net income	$	46,163		$	35,980
Adjustments to reconcile net income to net cash provided by/(used in) operating activities:
Credit for loan losses		(10,500	)		(5,000	)
Provision for losses on other real estate owned		128			181
Deferred tax liability		13,315			6,840
Depreciation and amortization		1,923			1,929
Net losses on sale and transfer of other real estate owned		-			154
Net gains on sale of loans		(102	)		(596	)
Proceeds from sales of loans		3,391			10,360
Originations of loans held-for-sale		(3,289	)		(8,791	)
Amortization on alternative energy partnerships, venture capital and other investments		1,304			224
Net losses on sales and calls of securities		-			21
Amortization/accretion of security premiums/discounts, net		1,527			502
Write-down on impaired securities		206			-
Excess tax short-fall from share-based payment arrangements		-			4,395
Stock based compensation and stock issued to officers as compensation		1,578			1,570
Net change in accrued interest receivable and other assets		(7,328	)		6,631
Net change in other liabilities		(7,207	)		1,379
Net cash provided by operating activities		41,109			55,779
Cash Flows from Investing Activities
Decrease/(increase) in short-term investments		104,496			(129,112	)
Purchase of investment securities available-for-sale		(25,898	)		(703,305	)
Proceeds from sale of investment securities available-for-sale		-			741,992
Proceeds from repayments, maturities and calls of investment securities available-for-sale		143,464			12,102
Redemptions of Federal Home Loan Bank stock		-			5,785
Net increase in loans		(174,402	)		(305,651	)
Purchase of premises and equipment		(1,063	)		(562	)
Proceeds from sales of other real estate owned		-			1,043
Investment in affordable housing and alternative energy partnerships		(22,326	)		(1,351	)
Net cash provided by/(used in) investing activities		24,271			(379,059	)
Cash Flows from Financing Activities
Net (decrease)/increase in deposits		(184,803	)		329,724
Net decrease in federal funds purchased and securities sold under agreements to repurchase		-			(50,000	)
Advances from Federal Home Loan Bank		450,000			2,242,000
Repayment of Federal Home Loan Bank borrowings		(250,000	)		(2,182,000	)
Cash dividends paid		(14,183	)		(7,983	)
Purchase of treasury stock		(54,441	)		-
Proceeds from shares issued under Dividend Reinvestment Plan		545			1,289
Proceeds from exercise of stock options		49			88
Taxes paid related to net share settlement of RSUs		(35	)		(114	)
Excess tax short-fall from share-based payment arrangements		-			(4,395	)
Net cash provided by/(used in) financing activities		(52,868	)		328,609
Increase in cash and cash equivalents		12,512			5,329
Cash and cash equivalents, beginning of the period		180,130			176,830
Cash and cash equivalents, end of the period	$	192,642		$	182,159
Supplemental disclosure of cash flow information
Cash paid during the period:
Interest	$	20,310		$	17,370
Income taxes paid	$	4,789		$	11,884
Non-cash investing and financing activities:
Net change in unrealized holding gain on securities available-for-sale, net of tax	$	10,473		$	6,511
Net change in unrealized holding loss on cash flow hedge derivatives	$	(3,120	)	$	(1,588	)
Transfers to other real estate owned from loans held for investment	$	2,698		$	701
Loans transferred from held for sale to held for investment, net	$	6,676		$	-

See accompanying notes to unaudited condensed consolidated financial statements.

5

CATHAY GENERAL BANCORP AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

1. Business

Cathay General Bancorp (“Bancorp”) is the holding company for Cathay Bank (the “Bank” and, together, the “Company”), six limited partnerships investing in affordable housing investments in which the Bank is the sole limited partner, and GBC Venture Capital, Inc. Bancorp also owns 100% of the common stock of five statutory business trusts created for the purpose of issuing capital securities. The Bank was founded in 1962 and offers a wide range of financial services. As of March 31, 2016, the Bank operated 21 branches in Southern California, 12 branches in Northern California, 12 branches in New York State, three branches in Illinois, three branches in Washington State, two branches in Texas, one branch in Massachusetts, one branch in New Jersey, one branch in Maryland, one branch in Nevada, one branch in Hong Kong, and a representative office in Shanghai and in Taipei. Deposit accounts at the Hong Kong branch are not insured by the Federal Deposit Insurance Corporation (the “FDIC”).

2. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. For further information, refer to the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

The preparation of the condensed consolidated financial statements in accordance with GAAP requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The most significant estimates subject to change are the allowance for loan losses, goodwill impairment, and other-than-temporary impairment.

3. Recent Accounting Pronouncements

In January 2016, the FASB issued ASU 2016-01, “Financial Instruments Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” This update requires an entity to measure equity investments with readily determinable fair values at fair value with changes in fair value recognized in net income. Equity investment without readily determinable fair values will be measured at fair value either upon the occurrence of an observable price change or upon identification of an impairment and any amount by which the carrying value exceeding the fair value will be recognized as an impairment in net income. This update also requires an entity to disclose fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price option. In addition, this update requires separate presentation in comprehensive income for changes in the fair value of a liability and in the balance sheet by measurement category and form of financial asset. ASU 2016-01 becomes effective for interim and annual periods beginning after December 15, 2017.  Adoption of ASU 2016-01 is not expected to have a significant impact on the Company’s consolidated financial statements.

6

In March 2016, the FASB issued ASU 2016-06, “Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments.” This update requires an entity to perform a four-step decision sequence when assessing whether contingent call or put options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. The four-step decision sequence is: the payoff is adjusted based on changes in an index; the payoff is indexed to an underlying other than interest rates or credit risk; the debt involves a substantial premium or discount; and the call or put option is contingently exercisable. ASU 2016-06 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-06 is not expected to have a significant impact on the Company’s consolidated financial statements.

In March 2016, the FASB issued ASU 2016-07, “Investments Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting.” This update eliminates the requirement to retroactively adopt the equity method of accounting. It requires that an equity method investor add the cost of acquiring the additional interest to the current basis of the previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. The retroactive adjustment of the investment is no longer required. ASU 2016-07 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-07 is not expected to have a significant impact on the Company’s consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, “Compensation Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” This update simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-09 is not expected to have a significant impact on the Company’s consolidated financial statements.

4. Earnings per Share

Basic earnings per share excludes dilution and is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock and resulted in the issuance of common stock that then shared in earnings.

7

Outstanding stock options with anti-dilutive effect were not included in the computation of diluted earnings per share. The following table sets forth earnings per common share calculations:

	Three months ended March 31,
(Dollars in thousands, except share and per share data)	2016		2015
Net income	$	46,163	$	35,980
Weighted-average shares:
Basic weighted-average number of common shares outstanding		79,734,519		79,835,628
Dilutive effect of weighted-average outstanding common share equivalents
Warrants		452,368		344,919
Options		83,018		108,457
Restricted stock units		123,944		20,379
Diluted weighted-average number of common shares outstanding		80,393,849		80,309,383
Average stock options and warrants with anti-dilutive effect		359,544		1,670,231
Earnings per common share:
Basic	$	0.58	$	0.45
Diluted	$	0.57	$	0.45

5. Stock-Based Compensation

Under the Company’s equity incentive plans, directors and eligible employees may be granted incentive or non-statutory stock options and/or restricted stock units, or awarded non-vested stock.As of March 31, 2016, the only options granted by the Company were non-statutory stock options to selected Bank officers and non-employee directors at exercise prices equal to the fair market value of a share of the Company’s common stock on the date of grant. Such options have a maximum ten-year term and vest in 20% annual increments (subject to early termination in certain events) except certain options granted to the Chief Executive Officer of the Company in 2005 and 2008. There were no options granted during the first quarter of 2016 or 2015.

Option compensation expense was zero for the three months ended March 31, 2016, and March 31, 2015. Stock-based compensation was fully recognized over the requisite service period for all awards. There were 2,110 and 3,750 stock option shares exercised in the first quarter ended March 31, 2016 and 2015, respectively. The Company received $49,000 with an aggregate intrinsic value of $9,000 from the exercise of stock options during the first quarter ended March 31, 2016 compared to $88,000 with an aggregate intrinsic value of $10,000 during the first quarter of March 31, 2015. The table below summarizes stock option activity for the periods indicated:

	Shares			Weighted-average Exercise Price		Weighted-average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Balance, December 31, 2015		1,031,170		$	31.27		0.9	$	3,268
Exercised		(2,110	)		23.37
Forfeited		(608,670	)		36.46
Balance, March 31, 2016		420,390		$	23.80		1.8	$	2,026
Exercisable, March 31, 2016		420,390		$	23.80		1.8	$	2,026

In addition to stock options, the Company also grants restricted stock units to eligible employees that vest subject to continued employment at the vesting dates.

8

The Company did not grant any restricted stock units in the first quarter of 2016. The Company granted restricted stock units for 37,675 shares at an average closing price for $27.53 per share in 2015.

In December 2013, the Company granted performance share unit awards in which the number of units earned is calculated based on the relative total shareholder return (TSR) of the Company’s common stock as compared to the TSR of the KBW Regional Banking Index. In addition, the Company granted performance share unit awards in which the number of units earned is determined by comparison to the targeted EPS as defined in the award for the 2014 to 2016 period. Performance TSR restricted stock units for 119,840 shares and performance EPS restricted stock units for 116,186 shares were granted to eight executive officers in 2013. In December 2014, the Company granted additional performance TSR restricted stock units for 60,456 shares and performance EPS restricted stock units for 57,642 shares were granted to seven executive officers. In December 2015, the Company granted additional performance TSR restricted stock units for 61,209 shares and performance EPS restricted stock units for 57,409 shares were granted to seven executive officers. Both the performance TSR and performance EPS units awarded are scheduled to vest three years from grant date.

The following table presents restricted stock unit activity during the three months ended March 31, 2016:

	Units
Balance at December 31, 2015		542,375
Vested		(4,812	)
Balance at March 31, 2016		537,563

The compensation expense recorded for restricted stock units was $1.0 million for the first quarter ended March 31, 2016, compared to $1.1 million in the same period a year ago. Unrecognized stock-based compensation expense related to restricted stock units was $6.5 million as of March 31, 2016, and is expected to be recognized over the next 2.2 years.

As of March 31, 2016, 3,789,782 shares were available under the Company’s 2005 Incentive Plan (as Amended and Restated) for future grants.

The following table summarizes the tax benefit (short-fall) from share-based payment arrangements:

	Three months ended March 31,
(Dollars in thousands)	2016			2015
Tax benefit/(short-fall) of tax deductions in excess of grant-date fair value	$	(3,298	)	$	(4,395	)
Benefit of tax deductions on grant-date fair value		3,302			4,442
Total benefit of tax deductions	$	4		$	47

The short-fall amount from share-based payment arrangements was charged against income tax expense. In addition, $140,000 was offset against the additional paid-in capital that resulted from previously realized excess tax benefits.

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6. Investment Securities

Investment securities were $1.49 billion as of March 31, 2016, compared to $1.59 billion as of December 31, 2015. The following tables reflect the amortized cost, gross unrealized gains, gross unrealized losses, and fair value of investment securities as of March 31, 2016, and December 31, 2015:

	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,750	$	61	$	7	$	224,804
U.S. government sponsored entities		100,000		10		-		100,010
Mortgage-backed securities		1,063,944		6,553		4		1,070,493
Collateralized mortgage obligations		60		-		26		34
Corporate debt securities		74,957		413		2,267		73,103
Mutual funds		6,000		-		85		5,915
Preferred stock of government sponsored entities		2,811		478		486		2,803
Other equity securities		3,902		4,060		-		7,962
Total	$	1,476,424	$	11,575	$	2,875	$	1,485,124

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	284,678	$	5	$	395	$	284,288
U.S. government sponsored entities		150,000		-		1,840		148,160
Mortgage-backed securities		1,073,108		560		11,399		1,062,269
Collateralized mortgage obligations		63		-		27		36
Corporate debt securities		74,955		425		1,525		73,855
Mutual funds		6,000		-		167		5,833
Preferred stock of government sponsored entities		2,811		633		228		3,216
Other equity securities		4,108		4,929		342		8,695
Total	$	1,595,723	$	6,552	$	15,923	$	1,586,352

The amortized cost and fair value of investment securities as of March 31, 2016, by contractual maturities, are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or repay obligations with or without call or repayment penalties.  

	Securities Available-For-Sale
	Amortized cost		Fair value
	(In thousands)
Due in one year or less	$	154,963	$	154,978
Due after one year through five years		104,879		105,470
Due after five years through ten years		145,501		143,358
Due after ten years (1)		1,071,081		1,081,318
Total	$	1,476,424	$	1,485,124

(1) Equity securities are reported in this category

10

There were no sales transactions of mortgage-backed securities during the first quarter of 2016. Proceeds of $406.9 million were received from the sale of mortgage-backed securities during the three months ended March 31, 2015. Proceeds from repayments, maturities and calls of mortgage-backed securities were $33.5 million and $12.1 million for the three months ended March 31, 2016 and 2015, respectively. There were no sales transactions of other investment securities during the three months ended March 31, 2016. Proceeds of $335.1 million were received from the sale of other investment securities during the three months ended March 31, 2015. Proceeds from maturities and calls of other investment securities were $110.0 million during the three months ended March 31, 2016 compared to zero during the same period a year ago. No gains and losses were realized on sales of investment securities but a permanent impairment write-down of $206,000 was recorded during the three months ended March 31, 2016 compared to gains of $1.7 million and losses of $1.7 million realized during the same period a year ago.

The tables below show the fair value and unrealized losses of the temporarily impaired securities in our investment securities portfolio as of March 31, 2016, and December 31, 2015:

	March 31, 2016
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	29,965	$	7	$	-	$	-	$	29,965	$	7
Mortgage-backed securities		389		3		46		1		435		4
Collateralized mortgage obligations		-		-		34		26		34		26
Corporate debt securities		9,950		50		42,783		2,217		52,733		2,267
Mutual funds		-		-		5,915		85		5,915		85
Preferred stock of government sponsored entities		2,230		486		-		-		2,230		486
Total	$	42,534	$	546	$	48,778	$	2,329	$	91,312	$	2,875

	December 31, 2015
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,289	$	395	$	-	$	-	$	224,289	$	395
U.S. government sponsored entities		148,160		1,840		-		-		148,160		1,840
Mortgage-backed securities		1,025,342		11,398		6		1		1,025,348		11,399
Collateralized mortgage obligations		-		-		36		27		36		27
Corporate debt securities		9,950		50		43,525		1,475		53,475		1,525
Mutual funds		-		-		5,833		167		5,833		167
Preferred stock of government sponsored entities		2,488		228		-		-		2,488		228
Other equity securities		158		342		-		-		158		342
Total	$	1,410,387	$	14,253	$	49,400	$	1,670	$	1,459,787	$	15,923

As of March 31, 2016, the Company had unrealized losses of $2.9 million. The unrealized losses on these securities were primarily attributed to yield curve movement, together with the widened liquidity spread and credit spread. The issuers have not, to the Company’s knowledge, established any cause for default on these securities. Management believes the impairment was temporary and, accordingly, no impairment loss on these securities has been recognized in our condensed consolidated statements of operations. The Company expects to recover the amortized cost basis of its debt securities, and has no intent to sell and will not be required to sell available-for-sale debt securities that have declined below their cost before their anticipated recovery.

11

Investment securities having a carrying value of $445.6 million as of March 31, 2016, and $449.6 million as of December 31, 2015, were pledged to secure public deposits, other borrowings, treasury tax and loan, and securities sold under agreements to repurchase. 

7. Loans

Most of the Company’s business activity is with Asian customers located in Southern and Northern California; New York City, New York; Houston and Dallas, Texas; Seattle, Washington; Boston, Massachusetts; Chicago, Illinois; Edison, New Jersey; Rockville, Maryland; Las Vegas, Nevada, and Hong Kong. The Company has no specific industry concentration, and generally its loans are secured by real property or other collateral of the borrowers. Loans are generally expected to be paid off from the operating profits of the borrowers, from refinancing by other lenders, or through sale by the borrowers of the secured collateral.

The types of loans in the condensed consolidated balance sheets as of March 31, 2016, and December 31, 2015, were as follows:

	March 31, 2016			December 31, 2015
	(In thousands)
Type of Loans:
Commercial loans	$	2,251,187		$	2,316,863
Residential mortgage loans		2,043,789			1,932,355
Commercial mortgage loans		5,445,575			5,301,218
Real estate construction loans		453,469			441,543
Equity lines		168,283			168,980
Installment and other loans		1,344			2,493
Gross loans	$	10,363,647		$	10,163,452
Less:
Allowance for loan losses		(134,552	)		(138,963	)
Unamortized deferred loan fees		(7,585	)		(8,262	)
Total loans, net	$	10,221,510		$	10,016,227
Loans held for sale	$	-		$	6,676

12

As of March 31, 2016, recorded investment in impaired loans totaled $134.8 million and was comprised of non-accrual loans of $44.6 million and accruing troubled debt restructured loans (TDRs) of $90.2 million. As of December 31, 2015, recorded investment in impaired loans totaled $133.8 million and was comprised of non-accrual loans of $52.1 million and accruing TDRs of $81.7 million. For impaired loans, the amounts previously charged off represent 14.2% as of March 31, 2016, and 22.4% as of December 31, 2015, of the contractual balances for impaired loans. The following table presents the average balance and interest income recognized related to impaired loans for the periods indicated:

	Impaired Loans
	Average Recorded Investment				Interest Income Recognized
	Three months ended March 31,				Three months ended March 31,
	2016		2015		2016		2015
Commercial loans	$	12,670	$	25,426	$	120	$	229
Real estate construction loans		20,292		22,990		65		65
Commercial mortgage loans		87,452		110,293		890		917
Residential mortgage loans and equity lines		16,991		17,280		132		124
Total impaired loans	$	137,405	$	175,989	$	1,207	$	1,335

The following table presents impaired loans and the related allowance for loan losses as of the dates indicated:

	Impaired Loans
	March 31, 2016						December 31, 2015
	Unpaid Principal Balance		Recorded Investment		Allowance		Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	10,912	$	8,968	$	-	$	15,493	$	6,721	$	-
Real estate construction loans		33,009		11,857		-		51,290		22,002		-
Commercial mortgage loans		74,480		67,988		-		59,954		54,625		-
Residential mortgage loans and equity lines		4,929		4,784		-		3,233		3,026		-
Subtotal	$	123,330	$	93,597	$	-	$	129,970	$	86,374	$	-
With allocated allowance
Commercial loans	$	4,188	$	2,718	$	225	$	7,757	$	6,847	$	530
Commercial mortgage loans		27,369		26,157		6,593		28,258		27,152		6,792
Residential mortgage loans and equity lines		13,334		12,343		372		14,383		13,437		427
Subtotal	$	44,891	$	41,218	$	7,190	$	50,398	$	47,436	$	7,749
Total impaired loans	$	168,221	$	134,815	$	7,190	$	180,368	$	133,810	$	7,749

13

The following tables present the aging of the loan portfolio by type as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	35,329	$	7,920	$	-	$	2,645	$	45,894	$	2,205,293	$	2,251,187
Real estate construction loans		1,529		-		-		6,179		7,708		445,761		453,469
Commercial mortgage loans		17,136		1,144		-		28,537		46,817		5,398,758		5,445,575
Residential mortgage loans and equity lines		6,087		-		-		7,282		13,369		2,198,703		2,212,072
Installment and other loans		-		-		-		-		-		1,344		1,344
Total loans	$	60,081	$	9,064	$	-	$	44,643	$	113,788	$	10,249,859	$	10,363,647

	December 31, 2015
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	8,367	$	221	$	-	$	3,545	$	12,133	$	2,304,730	$	2,316,863
Real estate construction loans		7,285		-		-		16,306		23,591		417,952		441,543
Commercial mortgage loans		2,243		2,223		-		25,231		29,697		5,271,521		5,301,218
Residential mortgage loans and equity lines		4,959		1,038		-		7,048		13,045		2,088,290		2,101,335
Installment and other loans		-		-		-		-				2,493		2,493
Total loans	$	22,854	$	3,482	$	-	$	52,130	$	78,466	$	10,084,986	$	10,163,452

The determination of the amount of the allowance for loan losses for impaired loans is based on management’s current judgment about the credit quality of the loan portfolio and takes into consideration known relevant internal and external factors that affect collectability when determining the appropriate level for the allowance for loan losses. The nature of the process by which the Bank determines the appropriate allowance for loan losses requires the exercise of considerable judgment. This allowance evaluation process is also applied to troubled debt restructurings since they are considered to be impaired loans.

A troubled debt restructuring is a formal modification of the terms of a loan when the lender, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower. The concessions may be granted in various forms, including a change in the stated interest rate, a reduction in the loan balance or accrued interest, or an extension of the maturity date that causes significant delay in payment.

TDRs on accrual status are comprised of the loans that have, pursuant to the Bank’s policy, performed under the restructured terms and have demonstrated sustained performance under the modified terms for six months before being returned to accrual status. The sustained performance considered by management pursuant to its policy includes the periods prior to the modification if the prior performance met or exceeded the modified terms. This would include cash paid by the borrower prior to the restructure to set up interest reserves.

14

As of March 31, 2016, accruing TDRs were $90.2 million and non-accrual TDRs were $23.2 million compared to accruing TDRs of $81.7 million and non-accrual TDRs of $39.9 million as of December 31, 2015. The Company allocated specific reserves of $1.5 million to accruing TDRs and $5.3 million to non-accrual TDRs as of March 31, 2016, and $2.0 million to accruing TDRs and $5.4 million to non-accrual TDRs as of December 31, 2015. There were no TDRs that were modified during the first quarter of 2016. The following table presents TDRs that were modified during the first quarter of 2015, their specific reserves as of March 31, 2015, and charge-offs during the first quarter of 2015:

	Three months ended March 31, 2015								March 31, 2015
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(Dollars in thousands)
Commercial loans		1	$	850	$	850	$	-	$	-
Commercial mortgage loans		3		8,613		8,613		-		-
Residential mortgage loans and equity lines		4		1,522		1,374		148		46
Total		8	$	10,985	$	10,837	$	148	$	46

Modifications of the loan terms during the first quarter of 2015 were in the form of changes in the stated interest rate, an extension of maturity dates, and/or a reduction in monthly payment amounts. The length of time for which modifications involving a reduction of the stated interest rate or changes in payment terms that were documented ranged from six months to three years from the modification date. 

We expect that the TDRs on accruing status as of March 31, 2016, which were all performing in accordance with their restructured terms, will continue to comply with the restructured terms because of the reduced principal or interest payments on these loans.  A summary of TDRs by type of concession and by type of loan, as of March 31, 2016, and December 31, 2015, is shown below:

	March 31, 2016
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	7,446	$	-	$	1,595	$	9,041
Real estate construction loans		-		-		5,679		5,679
Commercial mortgage loans		26,393		6,025		33,189		65,607
Residential mortgage loans		5,154		996		3,695		9,845
Total accruing TDRs	$	38,993	$	7,021	$	44,158	$	90,172

	March 31, 2016
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,001	$	90	$	1,091
Commercial mortgage loans		1,532		20,028		21,560
Residential mortgage loans		381		177		558
Total non-accrual TDRs	$	2,914	$	20,295	$	23,209

15

	December 31, 2015
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
Commercial loans	$	8,298	$	-	$	1,726	$	10,024
Real estate construction loans		-		-		5,696		5,696
Commercial mortgage loans		16,701		6,045		33,800		56,546
Residential mortgage loans		5,201		999		3,214		9,414
Total accruing TDRs	$	30,200	$	7,044	$	44,436	$	81,680

	December 31, 2015
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,033	$	90	$	1,123
Real estate construction loans		9,981		5,825		15,806
Commercial mortgage loans		1,544		20,362		21,906
Residential mortgage loans		388		700		1,088
Total non-accrual TDRs	$	12,946	$	26,977	$	39,923

The activity within our TDRs for the periods indicated are shown below:

	Three months ended March 31,
Accruing TDRs	2016			2015
	(In thousands)
Beginning balance	$	81,680		$	104,356
New restructurings		-			10,628
Restructured loans restored to accrual status		10,303			-
Charge-offs		-			(148	)
Payments		(1,811	)		(4,254	)
Restructured loans placed on non-accrual status		-			(10,189	)
Ending balance	$	90,172		$	100,393

	Three months ended March 31,
Non-accrual TDRs	2016			2015
	(In thousands)
Beginning balance	$	39,923		$	41,618
New restructurings		-			209
Restructured loans placed on non-accrual status		-			10,189
Charge-offs		-			(2,754	)
Payments		(6,411	)		(4,721	)
Restructured loans restored to accrual status		(10,303	)		-
Ending balance	$	23,209		$	44,541

A loan is considered to be in payment default once it is 60 to 90 days contractually past due under the modified terms.  The Company did not have any loans that were modified as a TDR during the previous twelve months and which subsequently defaulted as of March 31, 2016. 

Under the Company’s internal underwriting policy, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification in order to determine whether a borrower is experiencing financial difficulty.

16

As of March 31, 2016, there were no commitments to lend additional funds to those borrowers whose loans had been restructured, were considered impaired, or were on non-accrual status.

As part of the on-going monitoring of the credit quality of our loan portfolio, the Company utilizes a risk grading matrix to assign a risk grade to each loan. The risk rating categories can be generally described by the following grouping for non-homogeneous loans: 

● Pass/Watch – These loans range from minimal credit risk to lower than average, but still acceptable, credit risk.

● Special Mention– Borrower is fundamentally sound and loan is currently protected but adverse trends are apparent that, if not corrected, may affect ability to repay. Primary source of loan repayment remains viable but there is increasing reliance on collateral or guarantor support.

● Substandard – These loans are inadequately protected by current sound net worth, paying capacity, or collateral. Well-defined weaknesses exist that could jeopardize repayment of debt. Loss may not be imminent, but if weaknesses are not corrected, there is a good possibility of some loss.

● Doubtful – The possibility of loss is extremely high, but due to identifiable and important pending events (which may strengthen the loan), a loss classification is deferred until the situation is better defined.

● Loss – These loans are considered uncollectible and of such little value that to continue to carry the loan as an active asset is no longer warranted.

The Company had no loans held for sale as of March 31, 2016. The following tables present the loan portfolio by risk rating as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,081,780	$	92,891	$	75,461	$	1,055	$	2,251,187
Real estate construction loans		436,415		5,197		11,357		500		453,469
Commercial mortgage loans		5,131,844		187,237		117,324		9,170		5,445,575
Residential mortgage loans and equity lines		2,200,400		1,931		9,741		-		2,212,072
Installment and other loans		1,344		-		-		-		1,344
Total gross loans	$	9,851,783	$	287,256	$	213,883	$	10,725	$	10,363,647

17

	December 31, 2015
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,143,270	$	110,338	$	61,297	$	1,958	$	2,316,863
Real estate construction loans		413,765		5,776		21,502		500		441,543
Commercial mortgage loans		5,018,199		155,553		118,196		9,270		5,301,218
Residential mortgage loans and equity lines		2,091,434		399		9,502		-		2,101,335
Installment and other loans		2,493		-		-		-		2,493
Total gross loans	$	9,669,161	$	272,066	$	210,497	$	11,728	$	10,163,452
Loans held for sale	$	732	$	-	$	5,944	$	-	$	6,676

The allowance for loan losses and the reserve for off-balance sheet credit commitments are significant estimates that can and do change based on management’s process in analyzing the loan portfolio and on management’s assumptions about specific borrowers, underlying collateral, and applicable economic and environmental conditions, among other factors.

The following table presents the balance in the allowance for loan losses by portfolio segment and based on impairment method as of March 31, 2016, and as of December 31, 2015:

	Commercial Loans		Real Estate Construction Loans		Commercial Mortgage Loans		Residential Mortgage Loans and Equity Lines		Installment and Other Loans		Total
	(In thousands)
March 31, 2016
Loans individually evaluated for impairment
Allowance	$	225	$	-	$	6,593	$	372	$	-	$	7,190
Balance	$	11,686	$	11,857	$	94,145	$	17,127	$	-	$	134,815
Loans collectively evaluated for impairment
Allowance	$	56,156	$	12,744	$	43,858	$	14,597	$	7	$	127,362
Balance	$	2,239,501	$	441,612	$	5,351,430	$	2,194,945	$	1,344	$	10,228,832
Total allowance	$	56,381	$	12,744	$	50,451	$	14,969	$	7	$	134,552
Total balance	$	2,251,187	$	453,469	$	5,445,575	$	2,212,072	$	1,344	$	10,363,647
December 31, 2015
Loans individually evaluated for impairment
Allowance	$	530	$	-	$	6,792	$	427	$	-	$	7,749
Balance	$	13,568	$	22,002	$	81,776	$	16,464	$	-	$	133,810
Loans collectively evaluated for impairment
Allowance	$	55,669	$	22,170	$	42,648	$	10,718	$	9	$	131,214
Balance	$	2,303,295	$	419,541	$	5,219,442	$	2,084,871	$	2,493	$	10,029,642
Total allowance	$	56,199	$	22,170	$	49,440	$	11,145	$	9	$	138,963
Total balance	$	2,316,863	$	441,543	$	5,301,218	$	2,101,335	$	2,493	$	10,163,452

18

The following tables detail activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2016, and March 31, 2015. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.

	Commercial Loans			Real Estate Construction Loans			Commercial Mortgage Loans			Residential Mortgage Loans and Equity Lines			Installment and Other Loans			Total
	(In thousands)
2016 Beginning Balance	$	56,199		$	22,170		$	49,440		$	11,145		$	9		$	138,963
Provision/(credit) for possible credit losses		1,265			(16,702	)		978			3,961			(2	)		(10,500	)
Charge-offs		(2,070	)		-			(110	)		(149	)		-			(2,329	)
Recoveries		987			7,276			143			12						8,418
Net (charge-offs)/recoveries		(1,083	)		7,276			33			(137	)		-			6,089
March 31, 2016 Ending Balance	$	56,381		$	12,744		$	50,451		$	14,969		$	7		$	134,552
Reserve for impaired loans	$	225		$	-		$	6,593		$	372		$	-		$	7,190
Reserve for non-impaired loans	$	56,156		$	12,744		$	43,858		$	14,597		$	7		$	127,362
Reserve for off-balance sheet credit commitments	$	2,641		$	-		$	53		$	-		$	-		$	2,694
2015 Beginning Balance	$	47,501		$	27,652		$	74,673		$	11,578		$	16		$	161,420
Provision/(credit) for possible credit losses		793			(4,427	)		(1,697	)		328			3			(5,000	)
Charge-offs		(864	)		-			(3,452	)		(148	)		-			(4,464	)
Recoveries		2,275			45			1,794			19			-			4,133
Net (charge-offs)/recoveries		1,411			45			(1,658	)		(129	)		-			(331	)
March 31, 2015 Ending Balance	$	49,705		$	23,270		$	71,318		$	11,777		$	19		$	156,089
Reserve for impaired loans	$	3,911		$	-		$	6,635		$	498		$	-		$	11,044
Reserve for non-impaired loans	$	45,794		$	23,270		$	64,683		$	11,279		$	19		$	145,045
Reserve for off-balance sheet credit commitments	$	903		$	527		$	181		$	40		$	1		$	1,652

8. Commitments and Contingencies

The Company is involved in various litigation concerning transactions entered into in the normal course of business. Management, after consultation with legal counsel, does not believe that the resolution of such litigation will have a material effect upon its consolidated financial condition, results of operations, or liquidity taken as a whole. Although the Company establishes accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated, the Company does not have accruals for all legal proceedings where there is a risk of loss. In addition, amounts accrued may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, ultimate losses may be higher or lower, and possibly significantly so, than the amounts accrued for legal loss contingencies.

In the normal course of business, the Company becomes a party to financial instruments with off-balance sheet risk to meet the financing needs of its customers. These financial instruments include commitments to extend credit in the form of loans, or through commercial or standby letters of credit and financial guarantees. These instruments represent varying degrees of exposure to risk in excess of the amounts included in the accompanying condensed consolidated balance sheets. The contractual or notional amount of these instruments indicates a level of activity associated with a particular class of financial instrument and is not a reflection of the level of expected losses, if any.

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9. Borrowed Funds

Securities Sold Under Agreements to Repurchase. Securities sold under agreements to repurchase were $400 million with a weighted average rate of 3.89% as of March 31, 2016, compared to $400 million with a weighted average rate of 3.89% as of December 31, 2015. As of March 31, 2016, four floating-to-fixed rate agreements totaling $200 million with a weighted average rate of 5.0% and final maturity in January 2017 had initial floating rates for one year, with floating rates of the three-month LIBOR rate minus 340 basis points. Thereafter, the rates are fixed for the remainder of the term, with interest rates ranging from 4.89% to 5.07%. As of March 31, 2016, and December 31, 2015, four fixed rate non-callable securities sold under agreements to repurchase totaled $200 million with a weighted average rate of 2.78%. Final maturity for the four fixed rate non-callable securities sold under agreements to repurchase was $50.0 million in August 2016, $50.0 million in July 2017, $50.0 million in June 2018, and $50.0 million in July 2018.

These transactions are accounted for as collateralized financing transactions and recorded at the amounts at which the securities were sold. The Company may have to provide additional collateral for the repurchase agreements, as necessary. The underlying collateral pledged for the repurchase agreements consists of U.S. Treasury securities and mortgage-backed securities with a fair value of $429 million as of March 31, 2016, and $430 million as of December 31, 2015.

Borrowing from the FHLB. As of March 31, 2016, over-night borrowings from the FHLB were $100 million at a rate of 0.48% compared to $250 million at a rate of 0.27% as of December 31, 2015. As of March 31, 2016, the advances from the FHLB were $375 million at a rate of 0.46% compared to $25 million at a rate of 1.13% as of December 31, 2015. As of March 31, 2016, FHLB advances of $350 million will mature in April 2016 and $25 million will mature in March 2018.

10. Income Taxes

Income tax expense totaled $22.7 million, or an effective tax rate of 32.9%, for the three months ended March 31, 2016, compared to an income tax expense of $21.4 million, or an effective tax rate of 37.3%, for the same period in 2015. The effective tax rate includes the impact of the utilization of low income housing tax credits and the utilization of alternative energy tax credits.

As of December 31, 2015, the Company had income tax refunds receivable of $28.9 million. These income tax receivables are included in other assets in the accompanying condensed consolidated balance sheets.

The Company’s tax returns are open for audit by the Internal Revenue Service back to 2012 and by the California Franchise Tax Board back to 2008. As the Company is presently under audit by a number of tax authorities, it is reasonably possible that unrecognized tax benefits could change significantly over the next twelve months. The Company does not expect that any such changes would have a material impact on its annual effective tax rate.

11. Fair Value Measurements

The Company adopted ASC Topic 820 on January 1, 2008, and determined the fair values of our financial instruments based on the following:

● Level 1 - Quoted prices in active markets for identical assets or liabilities.

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● Level 2 - Observable prices in active markets for similar assets or liabilities; prices for identical or similar assets or liabilities in markets that are not active; directly observable market inputs for substantially the full term of the asset and liability; market inputs that are not directly observable but are derived from or corroborated by observable market data.

● Level 3 – Unobservable inputs based on the Company’s own judgment about the assumptions that a market participant would use.

The Company uses the following methodologies to measure the fair value of its financial assets and liabilities on a recurring basis:

Securities Available for Sale. For certain actively traded agency preferred stock, mutual funds, and U.S. Treasury securities, the Company measures the fair value based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement. The Company also measures securities by using quoted market prices for similar securities or dealer quotes, a Level 2 measurement. This category generally includes U.S. Government agency securities, state and municipal securities, mortgage-backed securities (“MBS”), commercial MBS, collateralized mortgage obligations, asset-backed securities, corporate bonds and trust preferred securities.

Warrants. The Company measures the fair value of warrants based on unobservable inputs based on assumptions and management judgment, a Level 3 measurement.

Foreign Exchange Contracts. The Company measures the fair value of foreign exchange contracts based on dealer quotes, a Level 2 measurement.

Interest Rate Swaps. Fair value of interest rate swaps is derived from third party models with observable market data, a Level 2 measurement.

The valuation techniques for the assets and liabilities valued on a nonrecurring basis are as follows:

Impaired Loans. The Company does not record loans at fair value on a recurring basis. However, from time to time, nonrecurring fair value adjustments to collateral dependent impaired loans are recorded based on either the current appraised value of the collateral, a Level 2 measurement, or management’s judgment and estimation of value reported on older appraisals that are then adjusted based on recent market trends, a Level 3 measurement.

Goodwill. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The two-step impairment testing process, if needed, begins by assigning net assets and goodwill to the two reporting units—Commercial Lending and Retail Banking.  The Company then completes “step one” of the impairment test by comparing the fair value of each reporting unit (as determined based on the discussion below) with the recorded book value (or “carrying amount”) of its net assets, with goodwill included in the computation of the carrying amount.  If the fair value of a reporting unit exceeds its carrying amount, goodwill of that reporting unit is not considered impaired, and “step two” of the impairment test is not necessary.  If the carrying amount of a reporting unit exceeds its fair value, step two of the impairment test is performed to determine the amount of impairment.  Step two of the impairment test compares the carrying amount of the reporting unit’s goodwill to the “implied fair value” of that goodwill.  The implied fair value of goodwill is computed by assuming that all assets and liabilities of the reporting unit would be adjusted to the current fair value, with the offset as an adjustment to goodwill.  This adjusted goodwill balance is the implied fair value used in step two.  An impairment charge is recognized for the amount by which the carrying amount of goodwill exceeds its implied fair value. In connection with the determination of fair value, certain data and information is utilized, including earnings forecasts at the reporting unit level for the next four years.  Other key assumptions include terminal values based on future growth rates and discount rates for valuing the cash flows, which have inputs for the risk-free rate, market risk premium, and adjustments to reflect inherent risk and required market returns. Because of the significance of unobservable inputs in the valuation of goodwill impairment, goodwill subject to nonrecurring fair value adjustments is classified as a Level 3 measurement.

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Core Deposit Intangibles. Core deposit intangibles is initially recorded at fair value based on a valuation of the core deposits acquired and is amortized over its estimated useful life to its residual value in proportion to the economic benefits consumed. The Company assesses the recoverability of this intangible asset on a nonrecurring basis using the core deposits remaining at the assessment date and the fair value of cash flows expected to be generated from the core deposits, a Level 3 measurement.

Other Real Estate Owned. Real estate acquired in the settlement of loans is initially recorded at fair value based on the appraised value of the property on the date of transfer, less estimated costs to sell, a Level 2 measurement. From time to time, nonrecurring fair value adjustments are made to other real estate owned based on the current updated appraised value of the property, also a Level 2 measurement, or management’s judgment and estimation of value reported on older appraisals that are then adjusted based on recent market trends, a Level 3 measurement.

Investments in Venture Capital. The Company periodically reviews its investments in venture capital for other-than-temporary impairment on a nonrecurring basis. Investments in venture capital were written down to their fair value based on available financial reports from venture capital partnerships and management’s judgment and estimation, a Level 3 measurement.

Equity Investments. The Company records equity investments at fair value on a nonrecurring basis based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement.

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The following tables present the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of March 31, 2016, and December 31, 2015:

March 31, 2016	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	224,804	$	-	$	-	$	224,804
U.S. government sponsored entities				100,010		-		100,010
Mortgage-backed securities		-		1,070,493		-		1,070,493
Collateralized mortgage obligations		-		34		-		34
Corporate debt securities		-		73,103		-		73,103
Mutual funds		5,915		-		-		5,915
Preferred stock of government sponsored entities		-		2,803		-		2,803
Other equity securities		-		7,962		-		7,962
Total securities available-for-sale		230,719		1,254,405		-		1,485,124
Warrants		-		-		94		94
Foreign exchange contracts		-		3,313		-		3,313
Total assets	$	230,719	$	1,257,718	$	94	$	1,488,531
Liabilities
Interest rate swaps	$	-	$	14,878	$	-	$	14,878
Foreign exchange contracts		-		913		-		913
Total liabilities	$	-	$	15,791	$	-	$	15,791

December 31, 2015	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	284,288	$	-	$	-	$	284,288
U.S. government sponsored entities		-		148,160		-	$	148,160
Mortgage-backed securities		-		1,062,269		-		1,062,269
Collateralized mortgage obligations		-		36		-		36
Corporate debt securities		-		73,855		-		73,855
Mutual funds		5,833		-		-		5,833
Preferred stock of government sponsored entities		-		3,216		-		3,216
Other equity securities		-		8,695		-		8,695
Total securities available-for-sale		290,121		1,296,231		-		1,586,352
Warrants		-		-		62		62
Foreign exchange contracts		-		3,339		-		3,339
Total assets	$	290,121	$	1,299,570	$	62	$	1,589,753
Liabilities
Option contracts	$	-	$	28	$	-	$	28
Interest rate swaps		-		6,496		-	$	6,496
Foreign exchange contracts		-		4,124		-		4,124
Total liabilities	$	-	$	10,648	$	-	$	10,648

The Company measured the fair value of its warrants on a recurring basis using significant unobservable inputs. The fair value of warrants was $94,000 as of March 31, 2016, compared to $62,000 as of December 31, 2015. The fair value adjustment of warrants was included in other operating income in the first quarter of 2016. The significant unobservable inputs in the Black-Scholes option pricing model for the fair value of warrants are their expected life ranging from 1 to 7 years, risk-free interest rate from 0.79% to 1.60%, and stock volatility from 13.06% to 18.21%.

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For financial assets measured at fair value on a nonrecurring basis that were still reflected in the condensed consolidated balance sheets as of March 31, 2016, the following tables provide the level of valuation assumptions used to determine each adjustment, the carrying value of the related individual assets as of March 31, 2016, and December 31, 2015, and the total losses for the periods indicated:

	March 31, 2016								Total Losses
	Fair Value Measurements Using						Total at		Three Months Ended
	Level 1		Level 2		Level 3		Fair Value		March 31, 2016		March 31, 2015
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	2,493	$	2,493	$	-	$	-
Commercial mortgage loans		-		-		19,565		19,565		-		56
Residential mortgage loans and equity lines		-		-		11,971		11,971		-		148
Total impaired loans		-		-		34,029		34,029		-		204
Other real estate owned (1)		-		11,906		4,206		16,112		128		181
Investments in venture capital and private company stock		-		-		4,831		4,831		110		224
Total assets	$	-	$	11,906	$	43,066	$	54,972	$	238	$	609

(1) Other real estate owned balance of $27.3 million in the condensed consolidated balance sheet is net of estimated disposal costs.

	December 31, 2015								Total Losses
	Fair Value Measurements Using						Total at		Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2015		December 31, 2014
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	6,317	$	6,317	$	806	$	17
Commercial mortgage loans		-		-		20,359		20,359		598		3,914
Residential mortgage loans and equity lines		-		-		13,009		13,009		146		27
Total impaired loans		-		-		39,685		39,685		1,550		3,958
Other real estate owned (1)		-		10,047		4,235		14,282		404		202
Investments in venture capital and private company stock		-		-		4,922		4,922		553		436
Total assets	$	-	$	10,047	$	48,842	$	58,889	$	2,507	$	4,596

(1) Other real estate owned balance of $24.7 million in the consolidated balance sheet is net of estimated disposal costs.

The significant unobservable (Level 3) inputs used in the fair value measurement of collateral for collateral-dependent impaired loans was primarily based on the appraised value of collateral adjusted by estimated sales cost and commissions. The Company generally obtains new appraisal reports every nine months. As the Company’s primary objective in the event of default would be to monetize the collateral to settle the outstanding balance of the loan, less marketable collateral would receive a larger discount. During the reported periods, collateral discounts ranged from 55% in the case of accounts receivable collateral to 65% in the case of inventory collateral.

The significant unobservable inputs used in the fair value measurement of loans held for sale was primarily based on the quoted price or sale price adjusted by estimated sales cost and commissions. The significant unobservable inputs used in the fair value measurement of other real estate owned (“OREO”) was primarily based on the appraised value of OREO adjusted by estimated sales cost and commissions.

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The Company applies estimated sales cost and commissions ranging from 3% to 6% to collateral value of impaired loans, quoted price, or loan sale price of loans held for sale, and appraised value of OREO.

12. Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each class of financial instruments.

Cash and Cash Equivalents. For cash and cash equivalents, the carrying amount was assumed to be a reasonable estimate of fair value, a Level 1 measurement.

Short-term Investments. For short-term investments, the carrying amount was assumed to be a reasonable estimate of fair value, a Level 1 measurement.

Securities Purchased under Agreements to Resell. The fair value of securities purchased under agreements to resell is based on dealer quotes, a Level 2 measurement.

Securities. For securities, including securities held-to-maturity, available-for-sale, and for trading, fair values were based on quoted market prices at the reporting date. If a quoted market price was not available, fair value was estimated using quoted market prices for similar securities or dealer quotes. For certain actively traded agency preferred stock and U.S. Treasury securities, the Company measures the fair value based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement. The Company also measures securities by using quoted market prices for similar securities or dealer quotes, a Level 2 measurement. This category generally includes U.S. Government agency securities, state and municipal securities, mortgage-backed securities (“MBS”), commercial MBS, collateralized mortgage obligations, asset-backed securities, and corporate bonds.

Loans Held for Sale. The Company records loans held for sale at fair value based on quoted prices from third party sources, or appraisal reports adjusted by sales commission assumptions.

Loans. Fair values were estimated for portfolios of loans with similar financial characteristics. Each loan category was further segmented into fixed and adjustable rate interest terms and by performing and non-performing categories.

The fair value of performing loans was calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan, a Level 3 measurement.

The fair value of impaired loans was calculated based on the net realizable fair value of the collateral or the observable market price of the most recent sale or quoted price from loans held for sale. The Company does not record loans at fair value on a recurring basis. Nonrecurring fair value adjustments to collateral dependent impaired loans are recorded based on the current appraised value or adjusted appraised value of the collateral, a Level 2 or Level 3 measurement.

Deposit Liabilities. The fair value of demand deposits, savings accounts, and certain money market deposits was assumed to be the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit was estimated using the rates currently offered for deposits with similar remaining maturities, a Level 3 measurement.

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      Securities Sold under Agreements to Repurchase. The fair value of securities sold under agreements to repurchase is based on dealer quotes, a Level 2 measurement.

      Advances from Federal Home Loan Bank (“FHLB”). The fair value of the advances is based on quotes from the FHLB to settle the advances, a Level 2 measurement.

Other Borrowings. This category includes borrowings from other financial institutions.  The fair value of other borrowings is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk, a Level 3 measurement. 

Long-term Debt. The fair value of long-term debt is estimated based on the quoted market prices or dealer quotes, a Level 2 measurement.

Foreign Exchange Contracts. The Company measures the fair value of foreign exchange contracts based on dealer quotes, a Level 2 measurement.

Interest Rate Swaps. Fair value of interest rate swaps is derived from third party models with observable market data, a Level 2 measurement.

Off-Balance-Sheet Financial Instruments. The fair value of commitments to extend credit, standby letters of credit, and financial guarantees written were estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. The fair value of guarantees and letters of credit was based on fees currently charged for similar agreements or on the estimated cost to terminate them or otherwise settle the obligations with the counterparties at the reporting date. The fair value of off-balance-sheet financial instruments was based on the assumptions that a market participant would use, a Level 3 measurement.

Fair value was estimated in accordance with ASC Topic 825. Fair value estimates were made at specific points in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Bank’s financial instruments, fair value estimates were based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates were subjective in nature and involved uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

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The following table presents the carrying and notional amounts and estimated fair value of financial instruments as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016				December 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	180,130	$	180,130
Short-term investments		432,384		432,384		536,880		536,880
Securities available-for-sale		1,485,124		1,485,124		1,586,352		1,586,352
Loans held for sale		-		-		6,676		6,676
Loans, net		10,221,510		10,142,747		10,016,227		9,938,810
Investment in Federal Home Loan Bank stock		17,250		17,250		17,250		17,250
Warrants		94		94		62		62

	Notional Amount		Fair Value		Notional Amount		Fair Value
Foreign exchange contracts	$	138,201	$	3,314	$	100,602	$	3,339

	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Liabilities
Deposits	$	10,324,116	$	10,331,030	$	10,509,087	$	10,509,879
Securities sold under agreements to repurchase		400,000		413,195		400,000		413,417
Advances from Federal Home Loan Bank		475,000		475,128		275,000		274,488
Other borrowings		17,792		15,478		18,593		16,684
Long-term debt		119,136		58,951		119,136		58,420

	Notional Amount		Fair Value		Notional Amount		Fair Value
Option contracts	$	-	$	-	$	9,396	$	28
Foreign exchange contracts		73,006		913		115,418		4,124
Interest rate swaps		476,590		14,878		459,416		6,496

	Notional Amount		Fair Value			Notional Amount		Fair Value
Off-Balance Sheet Financial Instruments
Commitments to extend credit	$	2,098,360	$	(5,722	)	$	1,971,848	$	(5,570	)
Standby letters of credit		49,334		(199	)		49,081		(194	)
Other letters of credit		30,883		(18	)		38,131		(22	)
Bill of lading guarantees		52		-			454		(1	)

The following tables present the level in the fair value hierarchy for the estimated fair values of financial instruments as of March 31, 2016, and December 31, 2015.

	March 31, 2016
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	-	$	-
Short-term investments		432,384		432,384		-		-
Securities available-for-sale		1,485,124		230,719		1,254,405		-
Loans, net		10,142,747		-		-		10,142,747
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		94		-		-		94
Financial Liabilities
Deposits		10,331,030		-		-		10,331,030
Securities sold under agreements to repurchase		413,195		-		413,195		-
Advances from Federal Home Loan Bank		475,128		-		475,128		-
Other borrowings		15,478		-		-		15,478
Long-term debt		58,951		-		58,951		-

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	December 31, 2015
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	180,130	$	180,130	$	-	$	-
Short-term investments		536,880		536,880		-		-
Securities available-for-sale		1,586,352		290,121		1,296,231		-
Loans held-for-sale		6,676		-		-		6,676
Loans, net		9,938,810		-		-		9,938,810
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		62		-		-		62
Financial Liabilities
Deposits		10,509,879		-		-		10,509,879
Securities sold under agreements to repurchase		413,417		-		413,417		-
Advances from Federal Home Loan Bank		274,488		-		-		274,488
Other borrowings		16,684		-		-		16,684
Long-term debt		58,420		-		58,420		-

13. Goodwill and Goodwill Impairment

The Company’s policy is to assess goodwill for impairment at the reporting unit level on an annual basis or between annual assessments if a triggering event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.  Impairment is the condition that exists when the carrying amount of goodwill exceeds its implied fair value.  

The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The two-step impairment testing process, if needed, begins by assigning net assets and goodwill to our two reporting units—Commercial Lending and Retail Banking.  The Company then completes “step one” of the impairment test by comparing the fair value of each reporting unit (as determined based on the discussion below) with the recorded book value (or “carrying amount”) of its net assets, with goodwill included in the computation of the carrying amount.  If the fair value of a reporting unit exceeds its carrying amount, goodwill of that reporting unit is not considered impaired, and “step two” of the impairment test is not necessary.  If the carrying amount of a reporting unit exceeds its fair value, step two of the impairment test is performed to determine the amount of impairment.  Step two of the impairment test compares the carrying amount of the reporting unit’s goodwill to the “implied fair value” of that goodwill.  The implied fair value of goodwill is computed by assuming that all assets and liabilities of the reporting unit would be adjusted to the current fair value, with the offset as an adjustment to goodwill.  This adjusted goodwill balance is the implied fair value used in step two.  An impairment charge is recognized for the amount by which the carrying amount of goodwill exceeds its implied fair value.

As of March 31, 2016, the Company’s market capitalization was above book value and there was no triggering event that required the Company to assess goodwill for impairment as of an interim date.

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14. Financial Derivatives

It is the policy of the Company not to speculate on the future direction of interest rates. However, the Company enters into financial derivatives in order to seek mitigation of exposure to interest rate risks related to our interest-earning assets and interest-bearing liabilities. We believe that these transactions, when properly structured and managed, may provide a hedge against inherent interest rate risk in the Company’s assets or liabilities and against risk in specific transactions. In such instances, the Company may enter into interest rate swap contracts or other types of financial derivatives. Prior to considering any hedging activities, we seek to analyze the costs and benefits of the hedge in comparison to other viable alternative strategies. All hedges must be approved by the Bank’s Investment Committee.

The Company follows ASC Topic 815 that establishes accounting and reporting standards for financial derivatives, including certain financial derivatives embedded in other contracts, and hedging activities. It requires the recognition of all financial derivatives as assets or liabilities in the Company’s consolidated balance sheet and measurement of those financial derivatives at fair value. The accounting treatment of changes in fair value is dependent upon whether or not a financial derivative is designated as a hedge and, if so, the type of hedge. Fair value is determined using third-party models with observable market data. For derivatives designated as cash flow hedges, changes in fair value are recognized in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. For derivatives designated as fair value hedges, changes in the fair value of the derivatives are reflected in current earnings, together with changes in the fair value of the related hedged item if there is a highly effective correlation between changes in the fair value of the interest rate swaps and changes in the fair value of the underlying asset or liability that is intended to be hedged. If there is not a highly effective correlation between changes in the fair value of the interest rate swap and changes in the fair value of the underlying asset or liability that is intended to be hedged, then only the changes in the fair value of the interest rate swaps are reflected in the Company’s consolidated financial statements.

In May 2014, Bancorp entered into interest rate swap contracts in the notional amount of $119.1 million for a period of ten years. The objective of these interest rate swap contracts, which were designated as hedging instruments in cash flow hedges, was to hedge on Bancorp’s $119.1 million of Junior Subordinated Debentures that had been issued to five trusts, with the quarterly interest payments throughout the ten-year period beginning in June 2014 and ending in June 2024, from the risk of variability of these payments resulting from changes in the three-month LIBOR interest rate. Bancorp pays a weighted average fixed interest rate of 2.61% and receives a variable interest rate of the three-month LIBOR at a weighted average rate of 0.63%. As of March 31, 2016, the notional amount of cash flow interest rate swaps was $119.1 million and their unrealized loss of $6.1 million, net of taxes, was included in other comprehensive income. The amount of periodic net settlement of interest rate swaps included in interest expense was $620,000 for the three months ended March 31, 2016 compared to $703,000 for the same quarter a year ago.

As of March 31, 2016, the Bank entered into interest rate swap contracts with various terms from four to eight years. These interest rate swap contracts are matched to individual fixed-rate commercial real estate loans in the Bank’s loan portfolio. These contracts have been designated as hedging instruments to hedge the risk of changes in the fair value of the underlying commercial real estate loan due to changes in interest rates. The swap contracts are structured so that the notional amounts reduce over time to match the contractual amortization of the underlying loan and allow prepayments with the same pre-payment penalty amounts as the related loan. The Bank pays a weighted average fixed rate of 4.68% and receives a variable rate at the one month LIBOR rate plus a weighted average spread of 321 basis points, or at a weighted average rate of 3.64%. As of March 31, 2016, the notional amount of fair value interest rate swaps was $357.5 million and their unrealized loss of $4.3 million was included in other non-interest income. The amount of periodic net settlement of interest rate swaps reducing interest income was $934,000 for the three months ended March 31, 2016, compared to $683,000 for the same quarter a year ago. As of March 31, 2016, the ineffective portion of these interest rate swaps was not significant.

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Interest rate swap contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have a strong credit profile and be approved by the Company’s Board of Directors. The Company’s credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps by each counterparty. Credit exposure may be reduced by the amount of collateral pledged by the counterparty. Bancorp’s interest rate swaps have been assigned by the counterparties to a derivatives clearing organization and daily margin is indirectly maintained with the derivatives clearing organization. Cash posted as collateral by Bancorp related to derivative contracts totaled $13.3 million as of March 31, 2016.

The Company enters into foreign exchange forward contracts with various counterparties to mitigate the risk of fluctuations in foreign currency exchange rates for foreign exchange certificates of deposit or foreign exchange contracts entered into with our clients. These contracts are not designated as hedging instruments and are recorded at fair value in our condensed consolidated balance sheets. Changes in the fair value of these contracts as well as the related foreign exchange certificates of deposit and foreign exchange contracts are recognized immediately in net income as a component of non-interest income. Period end gross positive fair values are recorded in other assets and gross negative fair values are recorded in other liabilities. As of March 31, 2016, there were no option contracts outstanding. As of March 31, 2016, spot, forward, and swap contracts with a total notional amount of $138.2 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $73.0 million had a negative fair value of $913,000 as of March 31, 2016. As of December 31, 2015, the notional amount of option contracts totaled $9.4 million with a net negative fair value of $28,000. As of December 31, 2015, spot, forward, and swap contracts with a total notional amount of $100.6 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $115.4 million had a negative fair value of $4.1 million as of December 31, 2015.

15. Balance Sheet Offsetting

Certain financial instruments, including resell and repurchase agreements, securities lending arrangements and derivatives, may be eligible for offset in the condensed consolidated balance sheets and/or subject to master netting arrangements or similar agreements. The Company’s securities sold with agreements to repurchase and derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, the Company does not generally offset such financial instruments for financial reporting purposes.

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Financial instruments that are eligible for offset in the condensed consolidated balance sheets, as of March 31, 2016, and December 31, 2015, are presented in the following table:

							Gross Amounts Not Offset in the Balance Sheet
	Gross Amounts Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts Presented in the Balance Sheet		Financial Instruments		Collateral Posted			Net Amount
	(In thousands)
March 31, 2016
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	14,878	$	-	$	14,878	$	-	$	(14,878	)	$	-
December 31, 2015
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	6,496	$	-	$	6,496	$	-	$	(6,496	)	$	-

16. Stockholders’ Equity

Total equity was $1.73 billion as of March 31, 2016, a decrease of $13.1 million, from $1.75 billion as of December 31, 2015, primarily due to purchases of treasury stock of $54.4 million and common stock cash dividends of $14.2 million offset by increases in net income of $46.2 million and other comprehensive income of $7.4 million.

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Activity in accumulated other comprehensive income, net of tax, and reclassification out of accumulated other comprehensive income for the three months ended March 31, 2016, and March 31, 2015, was as follows:

	Three months ended March 31, 2016									Three months ended March 31, 2015
	Pre-tax			Tax expense/ (benefit)			Net-of-tax			Pre-tax			Tax expense/ (benefit)			Net-of-tax
	(In thousands)
Beginning balance, loss, net of tax
Securities available-for-sale							$	(5,431	)							$	(3,172	)
Cash flow hedge derivatives								(2,995	)								(2,397	)
Total							$	(8,426	)							$	(5,569	)
Net unrealized gains/(losses) arising during the period
Securities available-for-sale	$	17,863		$	7,509		$	10,354		$	11,213		$	4,714		$	6,499
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total		12,480			5,246			7,234			8,473			3,562		$	4,911
Reclassification adjustment for net losses in net income
Securities available-for-sale		206			87			119			21			9			12
Cash flow hedge derivatives		-			-			-			-			-			-
Total		206			87			119			21			9			12
Total other comprehensive income/(loss)
Securities available-for-sale		18,069			7,596			10,473			11,234			4,723			6,511
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total	$	12,686		$	5,333		$	7,353		$	8,494		$	3,571		$	4,923
Ending balance, gain/(loss), net of tax
Securities available-for-sale							$	5,042								$	3,339
Cash flow hedge derivatives								(6,115	)								(3,985	)
Total							$	(1,073	)							$	(646	)

17. Stock Repurchase Program

In February 2016, the Company completed the repurchase of the remaining 633,250 shares of its common stock under the August 2015 repurchase program, for $17.0 million, or a $26.82 average price per share.

On February 1, 2016, the Board of Directors of the Company adopted a new stock repurchase program to repurchase up to $45.0 million of the Company’s common stock. In February 2016, the Company repurchased 1,380,578 shares of its common stock for $37.5 million, or a $27.13 average price per share under the February 2016 repurchase program. As of March 31, 2016, there was $7.5 million of the Company’s common stock remaining that could be purchased in the future under the February 2016 repurchase program.

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

The following discussion is based on the assumption that the reader has access to and has read the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Critical Accounting Policies

The discussion and analysis of the Company’s unaudited condensed consolidated balance sheets and results of operations are based upon its unaudited condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these condensed consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, revenues, and expenses, and related disclosures of contingent assets and liabilities at the date of our financial statements. Actual results may differ from these estimates under different assumptions or conditions.

Management of the Company considers the following to be critical accounting policies:

Accounting for the allowance for loan losses involves significant judgments and assumptions by management, which have a material impact on the carrying value of net loans. The judgments and assumptions used by management are based on historical experience and other factors, which are believed to be reasonable under the circumstances as described in “Allowance for Credit Losses” under “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Accounting for investment securities involves significant judgments and assumptions by management, which have a material impact on the carrying value of securities and the recognition of any “other-than-temporary” impairment to our investment securities. The judgments and assumptions used by management are described in “Investment Securities” under “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Accounting for income taxes involves significant judgments and assumptions by management, which have a material impact on the amount of taxes currently payable and the income tax expense recorded in the financial statements. The judgments and assumptions used by management are described in “Income Taxes” under “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

Accounting for goodwill and goodwill impairment involves significant judgments and assumptions by management, which have a material impact on the amount of goodwill and noninterest expense recorded in the financial statements. The judgments and assumptions used by management are described in “Goodwill and Goodwill Impairment” under “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

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Highlights

● Diluted earnings per share increased 26.7% to $0.57 per share for the first quarter of 2016 compared to $0.45 per share for the same quarter a year ago.

● Loan loss recoveries of $6.1 million during the first quarter of 2016.

Quarterly Statement of Operations Review

Net Income

Net income for the quarter ended March 31, 2016, was $46.2 million, an increase of $10.2 million, or 28.3%, compared to net income of $36.0 million for the same quarter a year ago. Diluted earnings per share for the quarter ended March 31, 2016, was $0.57 compared to $0.45 for the same quarter a year ago.

Return on average stockholders’ equity was 10.66% and return on average assets was 1.43% for the quarter ended March 31, 2016, compared to a return on average stockholders’ equity of 8.97% and a return on average assets of 1.30% for the same quarter a year ago.

Financial Performance

	Three months ended
	March 31, 2016			December 31, 2015			March 31, 2015
Net income (in millions)	$	46.2		$	41.4		$	36.0
Basic earnings per common share	$	0.58		$	0.51		$	0.45
Diluted earnings per common share	$	0.57		$	0.51		$	0.45
Return on average assets		1.43	%		1.27	%		1.30	%
Return on average total stockholders' equity		10.66	%		9.40	%		8.97	%
Efficiency ratio		46.92	%		49.22	%		45.74	%

Net Interest Income Before Provision for Credit Losses

Net interest income before provision for credit losses increased $14.5 million, or 16.4%, to $102.4 million during the first quarter of 2016 compared to $87.9 million during the same quarter a year ago. The increase was due primarily to the increase in interest income from loans and investment securities, offset by the increase in interest expense from time deposits.

The net interest margin was 3.42% for the first quarter of 2016 compared to 3.41% for the first quarter of 2015. The increase in the net interest margin was due to the impact from the increase in loans. The net interest margin increased to 3.42% for the first quarter of 2016 from 3.30% for the fourth quarter of 2015, primarily due to higher interest recoveries and lower excess cash balances.

For the first quarter of 2016, the yield on average interest-earning assets was 4.09%, the cost of funds on average interest-bearing liabilities was 0.89%, and the cost of interest bearing deposits was 0.69%. In comparison, for the first quarter of 2015, the yield on average interest-earning assets was 4.08%, the cost of funds on average interest-bearing liabilities was 0.88%, and the cost of interest bearing deposits was 0.65%. The net interest spread, defined as the difference between the yield on average interest-earning assets and the cost of funds on average interest-bearing liabilities, was 3.20% for the quarter ended March 31, 2016, compared to 3.20% for the same quarter a year ago.

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The following table sets forth information concerning average interest-earning assets, average interest-bearing liabilities, and the average yields and rates paid on those assets and liabilities for the three months ended March 31, 2016, and March 31, 2015. Average outstanding amounts included in the table are daily averages.

Interest-Earning Assets and Interest-Bearing Liabilities
	Three months ended March 31,
	2016								2015
				Interest		Average						Interest		Average
	Average			Income/		Yield/			Average			Income/		Yield/
(Dollars in thousands)	Balance			Expense		Rate (1)(2)			Balance			Expense		Rate (1)(2)
Interest earning assets:
Commercial loans	$	2,328,935		$	22,430		3.87	%	$	2,443,541		$	23,297		3.87	%
Residential mortgage loans		2,150,413			24,059		4.48			1,753,532			20,150		4.60
Commercial mortgage loans		5,359,924			60,489		4.54			4,563,911			51,980		4.62
Real estate construction loans		449,069			7,899		7.07			313,635			4,654		6.02
Other loans and leases		2,230			13		2.34			3,558			19		2.17
Total loans and leases (1)		10,290,571			114,890		4.49			9,078,177			100,100		4.47
Taxable securities		1,555,849			6,859		1.77			1,164,032			3,774		1.31
Federal Home Loan Bank stock		17,250			347		8.09			30,271			581		7.78
Interest bearing deposits		164,597			249		0.61			169,633			479		1.15
Total interest-earning assets		12,028,267			122,345		4.09			10,442,113			104,934		4.08
Non-interest earning assets:
Cash and due from banks		208,388								194,634
Other non-earning assets		884,829								741,288
Total non-interest earning assets		1,093,217								935,922
Less: Allowance for loan losses		(140,873	)							(163,452	)
Deferred loan fees		(8,040	)							(11,722	)
Total assets	$	12,972,571							$	11,202,861
Interest bearing liabilities:
Interest bearing demand accounts	$	965,779		$	395		0.16		$	798,985		$	319		0.16
Money market accounts		1,925,410			3,006		0.63			1,538,722			2,264		0.60
Savings accounts		620,627			240		0.16			532,372			190		0.14
Time deposits		4,900,488			10,857		0.89			4,304,872			8,793		0.83
Total interest-bearing deposits		8,412,304			14,498		0.69			7,174,951			11,566		0.65
Securities sold under agreements to repurchase		400,000			3,934		3.96			403,333			3,925		3.95
Other borrowings		84,784			106		0.50			100,072			93		0.38
Long-term debt		119,136			1,440		4.86			119,136			1,424		4.85
Total interest-bearing liabilities		9,016,224			19,978		0.89			7,797,492			17,008		0.88
Non-interest bearing liabilities:
Demand deposits		2,033,694								1,665,791
Other liabilities		180,910								112,241
Total equity		1,741,743								1,627,337
Total liabilities and equity	$	12,972,571							$	11,202,861
Net interest spread							3.20	%							3.20	%
Net interest income				$	102,367							$	87,926
Net interest margin							3.42	%							3.41	%

(1) Yields and amounts of interest earned include loan fees. Non-accrual loans are included in the average balance.

(2) Calculated by dividing net interest income by average outstanding interest-earning assets.

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The following table summarizes the changes in interest income and interest expense attributable to changes in volume and changes in interest rates:

Taxable-Equivalent Net Interest Income — Changes Due to Volume and Rate(1)
	Three months ended March 31, 2016-2015 Increase (Decrease) in Net Interest Income Due to:
(Dollars in thousands)	Changes in Volume			Changes in Rate			Total Change
Interest-earning assets:
Loans and leases	$	14,345		$	445		$	14,790
Taxable securities		1,516			1,569			3,085
Federal Home Loan Bank stock		(257	)		23			(234	)
Deposits with other banks		(14	)		(216	)		(230	)
Total changes in interest income		15,590			1,821			17,411
Interest-bearing liabilities:
Interest bearing demand accounts		71			5			76
Money market accounts		614			128			742
Savings accounts		34			16			50
Time deposits		1,334			730			2,064
Securities sold under agreements to repurchase		(7	)		16			9
Other borrowed funds		(16	)		29			13
Long-term debt		-			16			16
Total changes in interest expense		2,030			940			2,970
Changes in net interest income	$	13,560		$	881		$	14,441

(1) Changes in interest income and interest expense attributable to changes in both volume and rate have been allocated proportionately to changes due to volume and changes due to rate.

Provision for Credit Losses

Provision for credit losses was a credit of $10.5 million for the first quarter of 2016 compared to a credit of $5.0 million for the first quarter of 2015. The provision for credit losses was based on the review of the appropriateness of the allowance for loan losses as of March 31, 2016. The provision or reversal for credit losses represents the charge against or benefit toward current earnings that is determined by management, through a credit review process, as the amount needed to establish an allowance that management believes to be sufficient to absorb credit losses inherent in the Company’s loan portfolio, including unfunded commitments. The following table summarizes the charge-offs and recoveries for the periods indicated:

	Three months ended
	March 31, 2016			March 31, 2015
	(In thousands)
Charge-offs:
Commercial loans	$	2,070		$	864
Real estate loans (1)		259			3,600
Total charge-offs		2,329			4,464
Recoveries:
Commercial loans	$	987			2,274
Construction loans		7,276			45
Real estate loans (1)		155			1,813
Total recoveries		8,418			4,132
Net charge-offs/(recoveries)	$	(6,089	)	$	332

(1) Real estate loans include commercial mortgage loans, residential mortgage loans, and equity lines.

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Non-Interest Income

Non-interest income, which includes revenues from depository service fees, letters of credit commissions, securities gains (losses), gains (losses) on loan sales, wire transfer fees, and other sources of fee income, was $7.5 million for the first quarter of 2016, a decrease of $1.0 million, or 11.8%, compared to $8.5 million for the first quarter of 2015.

Non-Interest Expense

Non-interest expense increased $7.5 million, or 16.9%, to $51.6 million in the first quarter of 2016 compared to $44.1 million in the same quarter a year ago. The increase in non-interest expense in the first quarter of 2016 was primarily due to increases of $4.3 million in salaries and bonus expense, $1.0 million in professional services expenses, and $0.9 million in other operating expenses. The efficiency ratio was 46.92% in the first quarter of 2016 compared to 45.74% for the same quarter a year ago.

Income Taxes

The effective tax rate for the first quarter of 2016 was 32.9% compared to 37.3% for the first quarter of 2015. The effective tax rate includes the impact of the utilization of low income housing tax credits and alternative energy tax credits. During the first quarter of 2016, income tax expense included $3.3 million for the write-off of deferred tax assets related to stock options that expired unexercised during the quarter.

Balance Sheet Review

Assets

Total assets were $13.26 billion as of March 31, 2016, an increase of $7.8 million, or 0.1%, from $13.25 billion as of December 31, 2015, primarily due to a $193.5 million increase in loans offset by a $185.0 million decrease in deposits. Decreases in brokered deposits and state deposits primarily caused decreases in total deposits.   

Investment Securities

Investment securities represented 11.2% of total assets as of March 31, 2016, compared to 12.0% of total assets as of December 31, 2015. The carrying value of investment securities as of March 31, 2016, was $1.48 billion compared to $1.59 billion as of December 31, 2015. Securities available-for-sale are carried at fair value and had a net unrealized gain, net of tax, of $5.0 million as of March 31, 2016, compared to a net unrealized loss, net of tax, of $5.4 million as of December 31, 2015.

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The following tables reflect the amortized cost, gross unrealized gains, gross unrealized losses, and fair value of investment securities as of March 31, 2016, and December 31, 2015:

	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,750	$	61	$	7	$	224,804
U.S. government sponsored entities		100,000		10		-		100,010
Mortgage-backed securities		1,063,944		6,553		4		1,070,493
Collateralized mortgage obligations		60		-		26		34
Corporate debt securities		74,957		413		2,267		73,103
Mutual funds		6,000		-		85		5,915
Preferred stock of government sponsored entities		2,811		478		486		2,803
Other equity securities		3,902		4,060		-		7,962
Total	$	1,476,424	$	11,575	$	2,875	$	1,485,124

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	284,678	$	5	$	395	$	284,288
U.S. government sponsored entities		150,000		-		1,840		148,160
Mortgage-backed securities		1,073,108		560		11,399		1,062,269
Collateralized mortgage obligations		63		-		27		36
Corporate debt securities		74,955		425		1,525		73,855
Mutual funds		6,000		-		167		5,833
Preferred stock of government sponsored entities		2,811		633		228		3,216
Other equity securities		4,108		4,929		342		8,695
Total	$	1,595,723	$	6,552	$	15,923	$	1,586,352

For additional information, see Note 6 to the Company’s condensed consolidated financial statements presented elsewhere in this report.

Investment securities having a carrying value of $445.6 million as of March 31, 2016, and $449.6 million as of December 31, 2015, were pledged to secure public deposits, other borrowings, treasury tax and loan, and securities sold under agreements to repurchase. 

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Loans

Gross loans, excluding loans held for sale, were $10.4 billion as of March 31, 2016, an increase of $200.2 million, or 2.0%, from $10.2 billion as of December 31, 2015, primarily due to increases of $144.4 million, or 2.7%, in commercial mortgage loans, $111.4 million, or 5.8%, in residential mortgage loans, and $11.9 million, or 2.7%, in real estate construction loans, partially offset by decreases of $65.7 million, or 2.8%, in commercial loans. The following table sets forth the classification of loans by type, mix, and percentage change as of the dates indicated:

	March 31, 2016			% of Gross Loans			December 31, 2015			% of Gross Loans			% Change
	(Dollars in thousands)
Type of Loans
Commercial loans	$	2,251,187			21.7	%	$	2,316,863			22.8	%		(2.8	%)
Residential mortgage loans		2,043,789			19.7			1,932,355			19.0			5.8
Commercial mortgage loans		5,445,574			52.6			5,301,218			52.2			2.7
Equity lines		168,284			1.6			168,980			1.7			(0.4	)
Real estate construction loans		453,469			4.4			441,543			4.3			2.7
Installment and other loans		1,344			0.0			2,493			0.0			(46.1	)
Gross loans	$	10,363,647			100	%	$	10,163,452			100	%		2.0	%
Allowance for loan losses		(134,552	)					(138,963	)					(3.2	)
Unamortized deferred loan fees		(7,585	)					(8,262	)					(8.2	)
Total loans, net	$	10,221,510					$	10,016,227						2.0	%
Loans held for sale	$	-					$	6,676						(100	%)

Non-performing Assets

Non-performing assets include loans past due 90 days or more and still accruing interest, non-accrual loans, and other real estate owned (“OREO”). The Company’s policy is to place loans on non-accrual status if interest and/or principal is past due 90 days or more, or in cases where management deems the full collection of principal and interest unlikely. After a loan is placed on non-accrual status, any previously accrued but unpaid interest is reversed and charged against current income and subsequent payments received are generally first applied towards the outstanding principal balance of the loan. Depending on the circumstances, management may elect to continue the accrual of interest on certain past due loans if partial payment is received and/or the loan is well collateralized and in the process of collection. The loan is generally returned to accrual status when the borrower has brought the past due principal and interest payments current and, in the opinion of management, the borrower has demonstrated the ability to make future payments of principal and interest as scheduled.

Management reviews the loan portfolio regularly for problem loans. During the ordinary course of business, management becomes aware of borrowers that may not be able to meet the contractual requirements of the loan agreements. Such loans are placed under closer supervision with consideration given to placing the loans on non-accrual status, the need for an additional allowance for loan losses, and (if appropriate) partial or full charge-off.

The ratio of non-performing assets, excluding non-accrual loans held for sale, to total assets was 0.5% as of March 31, 2016, compared to 0.6% as of December 31, 2015. Total non-performing assets decreased $4.9 million, or 6.4%, to $71.9 million as of March 31, 2016, compared to $76.8 million as of December 31, 2015, primarily due to a $7.5 million, or 14.4%, decrease in non-accrual loans offset by a $2.6 million increase in other real estate owned.

As a percentage of gross loans plus OREO, our non-performing assets decreased to 0.69% as of March 31, 2016, from 0.75% as of December 31, 2015. The non-performing portfolio loan coverage ratio, defined as the allowance for credit losses to non-performing loans, increased to 307.4% as of March 31, 2016, from 269.4% as of December 31, 2015.

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The following table presents the changes in non-performing assets and troubled debt restructurings (“TDRs”) as of March 31, 2016, compared to December 31, 2015, and to March 31, 2015:

(Dollars in thousands)	March 31, 2016			December 31, 2015			% Change			March 31, 2015			% Change
Non-performing assets
Accruing loans past due 90 days or more	$	-		$	-			-		$	787			(100	)
Non-accrual loans:
Construction loans		6,179			16,306			(62	)		17,126			(64	)
Commercial real estate loans		28,537			25,231			13			43,079			(34	)
Commercial loans		2,645			3,545			(25	)		12,086			(78	)
Residential mortgage loans		7,282			7,048			3			8,033			(9	)
Total non-accrual loans:	$	44,643		$	52,130			(14	)	$	80,324			(44	)
Total non-performing loans		44,643			52,130			(14	)		81,111			(45	)
Other real estate owned		27,271			24,701			10			30,799			(11	)
Total non-performing assets	$	71,914		$	76,831			(6	)	$	111,910			(36	)
Accruing TDRs	$	90,172		$	81,680			10		$	100,393			(10	)
Non-accrual loans held for sale	$	-		$	5,944			(100	)	$	-			-
Allowance for loan losses	$	134,552		$	138,963			(3	)	$	156,089			(14	)
Allowance for off-balance sheet credit commitments		2,694			1,494			80			1,652			63
Allowance for credit losses	$	137,246		$	140,457			(2	)	$	157,741			(13	)
Total gross loans outstanding, at period-end (1)	$	10,363,647		$	10,163,452			2		$	9,224,797			12
Allowance for loan losses to non-performing loans, at period-end (2)		301.40	%		266.57	%					192.44	%
Allowance for loan losses to gross loans, at period-end (1)		1.30	%		1.37	%					1.69	%

(1) Excludes loans held for sale at period-end.

(2) Excludes non-accrual loans held for sale at period-end.

Non-accrual Loans

As of March 31, 2016, total non-accrual loans were $44.6 million, a decrease of $35.7 million, or 44.4%, from $80.3 million as of March 31, 2015, and a decrease of $7.5 million, or 14.4% from $52.1 million as of December 31, 2015. The allowance for the collateral-dependent loans is calculated based on the difference between the outstanding loan balance and the value of the collateral as determined by recent appraisals, sales contracts, or other available market price information. The allowance for collateral-dependent loans varies from loan to loan based on the collateral coverage of the loan at the time of designation as non-performing. We continue to monitor the collateral coverage of these loans, based on recent appraisals, on a quarterly basis and adjust the allowance accordingly. Non-accrual loans also include those TDRs that do not qualify for accrual status.

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The following tables present the type of properties securing the non-accrual portfolio loans and the type of businesses the borrowers engaged in as of the dates indicated:

	March 31, 2016				December 31, 2015
	Real Estate (1)		Commercial		Real Estate (1)		Commercial
	(In thousands)
Type of Collateral
Single/multi-family residence	$	9,041	$	-	$	8,727	$	-
Commercial real estate		19,256		834		30,588		834
Land		13,701		-		9,270		-
Personal property (UCC)		-		1,811		-		2,711
Total	$	41,998	$	2,645	$	48,585	$	3,545

(1) Real estate includes commercial mortgage loans, real estate construction loans, residential mortgage loans and equity lines.

	March 31, 2016				December 31, 2015
	Real Estate (1)		Commercial		Real Estate (1)		Commercial
	(In thousands)
Type of Business
Real estate development	$	17,169	$	834	$	29,174	$	834
Wholesale/Retail		18,196		768		13,414		780
Food/Restaurant		164		-		293		-
Import/Export		-		1,043		-		1,931
Other		6,469		-		5,704		-
Total	$	41,998	$	2,645	$	48,585	$	3,545

(1) Real estate includes commercial mortgage loans, real estate construction loans, residential mortgage loans and equity lines.

Other Real Estate Owned

As of March 31, 2016, OREO totaled $27.3 million, which increased $2.6 million, or 10.4%, compared to $24.7 million as of December 31, 2015, and decreased $3.5 million, or 11.5%, compared to $30.8 million as of March 31, 2015.

Impaired Loans

A loan is considered impaired when it is probable that a creditor will be unable to collect all amounts due according to the contractual terms of the loan agreement based on current circumstances and events. The assessment for impairment occurs when and while such loans are on non-accrual as a result of delinquency status of over 90 days or receipt of information indicating that full collection of principal is doubtful, or when the loan has been restructured in a troubled debt restructuring. Those loans with a balance less than our defined selection criteria, generally a loan amount less than $500,000, are treated as a homogeneous portfolio. If loans meeting the defined criteria are not collateral dependent, we measure the impairment based on the present value of the expected future cash flows discounted at the loan’s effective interest rate. If loans meeting the defined criteria are collateral dependent, we measure the impairment by using the loan’s observable market price or the fair value of the collateral. We obtain an appraisal to determine the amount of impairment at the date that the loan becomes impaired. The appraisals are based on “as is” or bulk sale valuations. To ensure that appraised values remain current, we generally obtain an updated appraisal every twelve months from qualified independent appraisers. If the fair value of the collateral, less cost to sell, is less than the recorded amount of the loan, we then recognize impairment by creating or adjusting an existing valuation allowance with a corresponding charge to the provision for loan losses. If an impaired loan is expected to be collected through liquidation of the collateral, the amount of impairment, excluding disposal costs, which range between 3% to 6% of the fair value, depending on the size of the impaired loan, is charged off against the allowance for loan losses. Non-accrual impaired loans, including TDRs, are not returned to accrual status unless the unpaid interest has been brought current and full repayment of the recorded balance is expected or if the borrower has made six consecutive monthly payments of the scheduled amounts due, and TDRs are reviewed for continued impairment until they are no longer reported as TDRs.

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As of March 31, 2016, recorded investment in impaired loans totaled $134.8 million and was comprised of non-accrual loans of $44.6 million and accruing troubled debt restructured loans (TDRs) of $90.2 million. As of December 31, 2015, recorded investment in impaired loans totaled $133.8 million and was comprised of non-accrual loans, excluding loans held for sale, of $52.1 million and accruing TDRs of $81.7 million. For impaired loans, the amounts previously charged off represent 14.2% as of March 31, 2016, and 22.4% as of December 31, 2015, of the contractual balances for impaired loans. As of March 31, 2016, $42.0 million, or 94.1%, of the $44.6 million of non-accrual loans, excluding loans held for sale, was secured by real estate compared to $48.6 million, or 93.2%, of the $52.1 million of non-accrual loans, excluding loans held for sale, that was secured by real estate as of December 31, 2015. The Bank obtains current appraisals, sales contracts, or other available market price information which provide updated factors in evaluating potential loss.

As of March 31, 2016, $7.2 million of the $134.6 million allowance for loan losses was allocated for impaired loans and $127.4 million was allocated to the general allowance. As of December 31, 2015, $7.8 million of the $139.0 million allowance for loan losses was allocated for impaired loans and $131.2 million was allocated to the general allowance.

The allowance for loan losses to non-accrual loans increased to 301.4% as of March 31, 2016, from 266.6% as of December 31, 2015, primarily due to decreases in non-accrual loans. Non-accrual loans also include those TDRs that do not qualify for accrual status.    

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The following table presents impaired loans and the related allowance as of the dates indicated:

	Impaired Loans
	March 31, 2016						December 31, 2015
	Unpaid Principal Balance		Recorded Investment		Allowance		Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	10,912	$	8,968	$	-	$	15,493	$	6,721	$	-
Real estate construction loans		33,009		11,857		-		51,290		22,002		-
Commercial mortgage loans		74,480		67,988		-		59,954		54,625		-
Residential mortgage loans and equity lines		4,929		4,784		-		3,233		3,026		-
Subtotal	$	123,330	$	93,597	$	-	$	129,970	$	86,374	$	-
With allocated allowance
Commercial loans	$	4,188	$	2,718	$	225	$	7,757	$	6,847	$	530
Commercial mortgage loans		27,369		26,157		6,593		28,258		27,152		6,792
Residential mortgage loans and equity lines		13,334		12,343		372		14,383		13,437		427
Subtotal	$	44,891	$	41,218	$	7,190	$	50,398	$	47,436	$	7,749
Total impaired loans	$	168,221	$	134,815	$	7,190	$	180,368	$	133,810	$	7,749

Loan Interest Reserves 

In accordance with customary banking practice, construction loans and land development loans are originated where interest on the loan is disbursed from pre-established interest reserves included in the total original loan commitment. Our construction and land development loans generally include optional renewal terms after the maturity of the initial loan term. New appraisals are obtained prior to extension or renewal of these loans in part to determine the appropriate interest reserve to be established for the new loan term. Loans with interest reserves are underwritten to the same criteria, including loan to value and, if applicable, pro forma debt service coverage ratios, as loans without interest reserves. Construction loans with interest reserves are monitored on a periodic basis to gauge progress towards completion. Interest reserves are frozen if it is determined that additional draws would result in a loan to value ratio that exceeds policy maximums based on collateral property type. Our policy limits in this regard are consistent with supervisory limits and range from 65% in the case of land to 85% in the case of one to four family residential construction projects.

As of March 31, 2016, construction loans of $425.8 million were disbursed with pre-established interest reserves of $55.2 million compared to $371.4 million of such loans disbursed with pre-established interest reserves of $49.5 million as of December 31, 2015.  The balance for construction loans with interest reserves which have been extended was $95.2 million with pre-established interest reserves of $3.3 million as of March 31, 2016, compared to $67.8 million with pre-established interest reserves of $2.6 million as of December 31, 2015.  Land loans of $48 million were disbursed with pre-established interest reserves of $673,000 as of March 31, 2016, compared to $87.3 million land loans disbursed with pre-established interest reserves of $1.8 million as of December 31, 2015.  The balance for land loans with interest reserves which have been extended was $22.4 million as of March 31, 2016 with pre-established interest reserves of $253,000, compared to $73.2 million land loans with pre-established interest reserves of $1.3 million as of December 31, 2015. 

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As of March 31, 2016, the Bank had no loans on non-accrual status with available interest reserves.  As of March 31, 2016, $5.7 million of non-accrual non-residential construction loans, $0.5 million of non-accrual residential construction loans, and $13.7 million non-accrual land loans had been originated with pre-established interest reserves.    As of December 31, 2015, the Bank had no loans on non-accrual status with available interest reserves.  As of December 31, 2015, $0.5 million of non-accrual residential construction loans, $15.8 million of non-accrual non-residential construction loans, and $13.9 million non-accrual land loans had been originated with pre-established interest reserves.    While loans with interest reserves are typically expected to be repaid in full according to the original contractual terms, some loans require one or more extensions beyond the original maturity.  Typically, these extensions are required due to construction delays, delays in the sale or lease of property, or some combination of these two factors.

Loan Concentration

Most of the Company’s business activities are with customers located in the predominantly Asian areas of Southern and Northern California; New York City, New York; Dallas and Houston, Texas; Seattle, Washington; Boston, Massachusetts; Chicago, Illinois; Edison, New Jersey; Rockville, Maryland; Las Vegas, Nevada, and Hong Kong. The Company has no specific industry concentration, and generally its loans are collateralized with real property or other pledged collateral of the borrowers. Loans are generally expected to be paid off from the operating profits of the borrowers, refinancing by another lender, or through sale by the borrowers of the collateral. There were no loan concentrations to multiple borrowers in similar activities which exceeded 10% of total loans as of March 31, 2016, or as of December 31, 2015.

The federal banking regulatory agencies issued final guidance on December 6, 2006, regarding risk management practices for financial institutions with high or increasing concentrations of commercial real estate (“CRE”) loans on their balance sheets. The regulatory guidance reiterates the need for sound internal risk management practices for those institutions that have experienced rapid growth in CRE lending, have notable exposure to specific types of CRE, or are approaching or exceeding the supervisory criteria used to evaluate the CRE concentration risk, but the guidance is not to be construed as a limit for CRE exposure. The supervisory criteria are: (1) total reported loans for construction, land development, and other land represent 100% of the institution’s total risk-based capital, and (2) both total CRE loans represent 300% or more of the institution’s total risk-based capital and the institution’s CRE loan portfolio has increased 50% or more within the last thirty-nine months. Total loans for construction, land development, and other land represented 35% of the Bank’s total risk-based capital as of March 31, 2016, and 36% as of December 31, 2015. Total CRE loans represented 296% of total risk-based capital as of March 31, 2016, and 286% as of December 31, 2015 and were below the Bank’s internal limit for CRE loans of 400% of total capital at both dates.

Allowance for Credit Losses

The Bank maintains the allowance for credit losses at a level that is considered appropriate to absorb the estimated and known risks in the loan portfolio and off-balance sheet unfunded credit commitments. Allowance for credit losses is comprised of the allowance for loan losses and the reserve for off-balance sheet unfunded credit commitments. With this risk management objective, the Bank’s management has an established monitoring system that is designed to identify impaired and potential problem loans, and to permit periodic evaluation of impairment and the appropriate level of the allowance for credit losses in a timely manner.

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In addition, the Bank’s Board of Directors has established a written credit policy that includes a credit review and control system which it believes should be effective in ensuring that the Bank maintains an appropriate allowance for credit losses. The Board of Directors provides oversight for the allowance evaluation process, including quarterly evaluations, and determines whether the allowance is appropriate to absorb losses in the credit portfolio. The determination of the amount of the allowance for credit losses and the provision for credit losses is based on management’s current judgment about the credit quality of the loan portfolio and takes into consideration known relevant internal and external factors that affect collectability when determining the appropriate level for the allowance for credit losses. The nature of the process by which the Bank determines the appropriate allowance for credit losses requires the exercise of considerable judgment. Additions to the allowance for credit losses are made by charges to the provision for credit losses. While management utilizes its best judgment based on the information available, the ultimate appropriateness of the allowance is dependent upon a variety of factors beyond the Bank’s control, including the performance of the Bank’s loan portfolio, the economy, changes in interest rates, and the view of the regulatory authorities toward loan classifications. Identified credit exposures that are determined to be uncollectible are charged against the allowance for credit losses. Recoveries of previously charged off amounts, if any, are credited to the allowance for credit losses. A weakening of the economy or other factors that adversely affect asset quality could result in an increase in the number of delinquencies, bankruptcies, or defaults, and a higher level of non-performing assets, net charge-offs, and provision for credit losses in future periods.

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The allowance for loan losses was $134.6 million and the allowance for off-balance sheet unfunded credit commitments was $2.7 million as of March 31, 2016, which represented the amount believed by management to be appropriate to absorb credit losses inherent in the loan portfolio, including unfunded commitments. The $134.6 million allowance for loan losses as of March 31, 2016, decreased $4.4 million, or 3.2%, from $139.0 million as of December 31, 2015. The allowance for loan losses represented 1.30% of period-end gross loans, excluding loans held for sale, and 301.4% of non-performing loans as of March 31, 2016. The comparable ratios were 1.37% of period-end gross loans, excluding loans held for sale, and 266.6% of non-performing loans as of December 31, 2015. The following table sets forth information relating to the allowance for loan losses, charge-offs, recoveries, and the reserve for off-balance sheet credit commitments for the periods indicated:

	Three months ended
	March 31, 2016			March 31, 2015
	(Dollars in thousands)
Allowance for loan losses
Balance at beginning of period	$	138,963		$	161,420
Reversal for credit losses		(10,500	)		(5,000	)
Charge-offs :
Commercial loans		(2,070	)		(864	)
Real estate loans		(259	)		(3,600	)
Total charge-offs		(2,329	)		(4,464	)
Recoveries:
Commercial loans		987			2,275
Construction loans		7,276			45
Real estate loans		155			1,813
Total recoveries		8,418			4,133
Balance at end of period	$	134,552		$	156,089
Reserve for off-balance sheet credit commitments
Balance at beginning of period	$	1,494		$	1,949
Provision/(reversal) for credit losses		1,200			(297	)
Balance at end of period	$	2,694		$	1,652
Average loans outstanding during the period	$	10,290,571		$	9,078,177
Total gross loans outstanding, at period-end	$	10,363,647		$	9,224,797
Total non-performing loans, at period-end	$	44,643		$	81,111
Ratio of net charge-offs to average loans outstanding during the period		(0.24	%)		0.01	%
Provision for credit losses to average loans outstanding during the period		(0.36	%)		(0.24	%)
Allowance for credit losses to non-performing loans, at period-end		307.43	%		194.48	%
Allowance for credit losses to gross loans, at period-end		1.32	%		1.71	%

Our allowance for loan losses consists of the following:

 •  Specific allowance: For impaired loans, we provide specific allowances for loans that are not collateral dependent based on an evaluation of the present value of the expected future cash flows discounted at the loan’s effective interest rate and for loans that are collateral dependent based on the fair value of the underlying collateral determined by the most recent valuation information received, which may be adjusted based on factors such as changes in market conditions from the time of valuation. If the measure of the impaired loan is less than the recorded investment in the loan, the deficiency will be charged off against the allowance for loan losses or, alternatively, a specific allocation will be established.

• General allowance: The unclassified portfolio is segmented on a group basis. Segmentation is determined by loan type and common risk characteristics. The non-impaired loans are grouped into 19 segments: two commercial segments, ten commercial real estate segments, one residential construction segment, one non-residential construction segment, one SBA segment, one installment loans segment, one residential mortgage segment, one equity lines of credit segment, and one overdrafts segment. The allowance is provided for each segmented group based on the group’s historical loan loss experience aggregated based on loan risk classifications which take into account the current financial condition of the borrowers and guarantors, the prevailing value of the underlying collateral if collateral dependent, charge-off history, management’s knowledge of the portfolio, general economic conditions, environmental factors including the trends in delinquency and non-accrual, and other significant factors, such as the national and local economy, volume and composition of the portfolio, strength of management and loan staff, underwriting standards, and concentration of credit. In addition, management reviews reports on past-due loans to ensure appropriate classification.

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The table set forth below reflects management’s allocation of the allowance for loan losses by loan category and the ratio of each loan category to the average gross loans as of the dates indicated:

	March 31, 2016					December 31, 2015
			Percentage of					Percentage of
			Loans in Each					Loans in Each
			Category					Category
			to Average					to Average
	Amount		Gross Loans			Amount		Gross Loans
	(Dollars in thousands)
Type of Loan:
Commercial loans	$	56,381		22.6	%	$	56,199		24.9	%
Residential mortgage loans (1)		14,969		20.9			11,145		19.7
Commercial mortgage loans		50,451		52.1			49,440		51.5
Real estate construction loans		12,744		4.4			22,170		3.9
Installment and other loans		7		0.0			9		0.0
Total	$	134,552		100	%	$	138,963		100	%

(1) Residential mortgage loans includes equity lines.

The allowance allocated to real estate construction loans decreased from $22.2 million as of December 31, 2015, to $14.0 million as of March 31, 2016, which was due primarily to construction loan recoveries of $7.3 million in the first quarter of 2016 and the decrease in the amount of loans classified as substandard. The overall allowance for total construction loans was 2.8% as of March 31, 2016, and 3.1% as of December 31, 2015.

The allowance allocated for residential mortgage loans increased $3.9 million, or 34.3%, to $15.0 million as of March 31, 2016, compared to $11.1 million as of December 31, 2015, primarily due to growth in residential mortgage loans of $111.4 million, or 5.8%, in the first quarter of 2016.

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Deposits

Total deposits were $10.3 billion as of March 31, 2016, a decrease of $185.0 million from $10.5 billion as of December 31, 2015, primarily due to a $187.6 million decrease in brokered time deposits. The following table displays the deposit mix as of the dates indicated:

	March 31, 2016		% of Total			December 31, 2015		% of Total
	(Dollars in thousands)
Deposits
Non-interest-bearing demand deposits	$	2,059,073		20.0	%	$	2,033,048		19.4	%
NOW deposits		992,278		9.6			966,404		9.2
Money market deposits		1,923,114		18.6			1,905,719		18.1
Savings deposits		602,154		5.8			618,164		5.9
Time deposits		4,747,497		46.0			4,985,752		47.4
Total deposits	$	10,324,116		100.0	%	$	10,509,087		100.0	%

Borrowings

Borrowings include federal funds purchased, securities sold under agreements to repurchase, funds obtained as advances from the Federal Home Loan Bank (“FHLB”) of San Francisco, and borrowings from other financial institutions.

Securities Sold Under Agreements to Repurchase. Securities sold under agreements to repurchase were $400.0 million with a weighted average rate of 3.89% as of March 31, 2016, compared to $400.0 million with a weighted average rate of 3.89% as of December 31, 2015. As of March 31, 2016, four floating-to-fixed rate agreements totaling $200.0 million with weighted average rate of 5.0% and final maturity in January 2017 have initial floating rates for one year, with floating rates of the three-month LIBOR rate minus 340 basis points. Thereafter, the rates are fixed for the remainder of the term, with interest rates ranging from 4.89% to 5.07%. As of March 31, 2016, and December 31, 2015, four fixed rate non-callable securities sold under agreements to repurchase totaled $200.0 million with a weighted average rate of 2.78%. Final maturity for the four fixed rate non-callable securities sold under agreements to repurchase is $50.0 million in August 2016, $50.0 million in July 2017, $50.0 million in June 2018, and $50.0 million in July 2018.

These transactions are accounted for as collateralized financing transactions and recorded at the amounts at which the securities were sold. The Company may have to provide additional collateral for the repurchase agreements, as necessary. The underlying collateral pledged for the repurchase agreements consists of U.S. Treasury securities and mortgage-backed securities with a fair value of $428.8 million as of March 31, 2016, and $430.2 million as of December 31, 2015.

Borrowing from the FHLB. As of March 31, 2016, over-night borrowings from the FHLB were $100.0 million at a rate of 0.48% compared to $250.0 million at a rate of 0.27% as of December 31, 2015. As of March 31, 2016, the advances from the FHLB were $375.0 million at a rate of 0.46% compared to $25.0 million at a rate of 1.13% as of December 31, 2015. As of March 31, 2016, FHLB advances of $350.0 million will mature in April 2016 and $25.0 million will mature in March 2018.

Long-term Debt

Long-term debt was $119.1 million as of March 31, 2016, compared to $119.1 million as of December 31, 2015. Long-term debt is comprised of Junior Subordinated Notes, which qualify as Tier I capital for regulatory purposes, issued in connection with our various pooled trust preferred securities offerings.

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Off-Balance-Sheet Arrangements and Contractual Obligations

The following table summarizes the Company’s contractual obligations to make future payments as of March 31, 2016. Payments for deposits and borrowings do not include interest. Payments related to leases are based on actual payments specified in the underlying contracts.

	Payment Due by Period
			More than		3 years or
			1 year but		more but
	1 year		less than		less than		5 years
	or less		3 years		5 years		or more		Total
	(In thousands)
Contractual obligations:
Deposits with stated maturity dates	$	3,612,575	$	1,112,452	$	22,459	$	11	$	4,747,497
Securities sold under agreements to repurchase (1)		200,000		-		-		-		200,000
Securities sold under agreements to repurchase (2)		50,000		150,000		-		-		200,000
Advances from the Federal Home Loan Bank		450,000		25,000		-		-		475,000
Other borrowings		-		-		-		17,792		17,792
Long-term debt		-		-		-		119,136		119,136
Operating leases		7,611		11,070		4,275		4,538		27,494
Total contractual obligations and other commitments	$	4,320,186	$	1,298,522	$	26,734	$	141,477	$	5,786,919

(1) These repurchase agreements have a final maturity of 10-years from origination date but are callable on a quarterly basis after one year.

(2) These repurchase agreements are non-callable.

In the normal course of business, we enter into various transactions, which, in accordance with U.S. generally accepted accounting principles, are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. These transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the condensed consolidated balance sheets.

Loan Commitments. We enter into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of our commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for credit losses.

Standby Letters of Credit. Standby letters of credit are written conditional commitments issued by us to secure the obligations of a customer to a third party. In the event the customer does not perform in accordance with the terms of an agreement with the third party, we would be required to fund the commitment. The maximum potential amount of future payments we could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, we would be entitled to seek reimbursement from the customer. Our policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

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Capital Resources

Total equity was $1.73 billion as of March 31, 2016, a decrease of $13.1 million, or 0.7%, from $1.75 billion as of December 31, 2015, primarily due to purchases of treasury stock of $54.4 million and common stock cash dividends of $14.2 million offset by increases in net income of $46.2 million and other comprehensive income of $7.4 million.

The following table summarizes changes in total equity for the three months ended March 31, 2016:

(In thousands)	March 31, 2016
Net income	$	46,163
Stock issued to directors		550
Stock options exercised		49
Proceeds from shares issued through the Dividend Reinvestment Plan		545
Shares withheld related to net share settlement of RSUs		(35	)
Net tax short-fall from stock-based compensation expense		(134	)
Share-based compensation		1,028
Other comprehensive income		7,353
Purchase of treasury stock		(54,441	)
Cash dividends paid to common stockholders		(14,183	)
Net decrease in total equity	$	(13,105	)

Capital Adequacy Review

Management seeks to maintain the Company’s capital at a level sufficient to support future growth, protect depositors and stockholders, and comply with various regulatory requirements.

Both Bancorp’s and the Bank’s regulatory capital continued to exceed the regulatory minimum requirements under Basel III rules that became effective January 1, 2015, with transitional provisions as of March 31, 2016. In addition, the capital ratios of the Bank place it in the “well capitalized” category, which is defined as institutions with a common equity tier 1 capital ratio equal to or greater than 6.5%, a Tier 1 risk-based capital ratio equal to or greater than 8%, a total risk-based capital ratio equal to or greater than 10%, and a Tier 1 leverage capital ratio equal to or greater than 5%.

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The following table presents Bancorp’s and the Bank’s capital and leverage ratios as of March 31, 2016, and December 31, 2015:

	Cathay General Bancorp								Cathay Bank
	March 31, 2016				December 31, 2015				March 31, 2016				December 31, 2015
(Dollars in thousands)	Balance		%		Balance		%		Balance		%		Balance		%
Common equtiy Tier 1 capital ( to risk-weighted assets)	$	1,362,663		12.60	$	1,383,377		12.95	$	1,431,812		13.27	$	1,443,159		13.54
Common equtiy Tier 1 capital minimum requirement		486,728		4.50		480,830		4.50		485,512		4.50		479,801		4.50
Excess	$	875,935		8.10	$	902,547		8.45	$	946,300		8.77	$	963,358		9.04
Tier 1 capital (to risk-weighted assets)	$	1,478,118		13.67	$	1,498,810		14.03	$	1,431,812		13.27	$	1,443,159		13.54
Tier 1 capital minimum requirement		648,971		6.00		641,107		6.00		647,349		6.00		639,735		6.00
Excess	$	829,147		7.67	$	857,703		8.03	$	784,463		7.27	$	803,424		7.54
Total capital (to risk-weighted assets)	$	1,615,131		14.93	$	1,634,631		15.30	$	1,566,706		14.52	$	1,576,525		14.79
Total capital minimum requirement		865,294		8.00		854,809		8.00		863,132		8.00		852,980		8.00
Excess	$	749,837		6.93	$	779,822		7.30	$	703,574		6.52	$	723,545		6.79
Tier 1 capital (to average assets)
– Leverage ratio	$	1,478,118		11.73	$	1,498,810		11.95	$	1,431,812		11.40	$	1,443,159		11.53
Minimum leverage requirement		503,978		4.00		501,875		4.00		502,588		4.00		500,455		4.00
Excess	$	974,140		7.73	$	996,935		7.95	$	929,224		7.40	$	942,704		7.53
Risk-weighted assets	$	10,816,179			$	10,685,115			$	10,789,155			$	10,662,248
Total average assets (1)	$	12,599,462			$	12,546,879			$	12,564,697			$	12,511,382

(1) The quarterly total average assets reflect all debt securities at amortized cost, equity securities with readily determinable fair values at the lower of cost or fair value, and equity securities without readily determinable fair values at historical cost.

In July 2013, the federal bank regulatory agencies adopted final regulations which revised their risk-based and leverage capital requirements for banking organizations to meet requirements of the Dodd-Frank Act and to implement international agreements reached by the Basel Committee on Banking Supervision that were intended to improve both the quality and quantity of banking organizations’ capital (“Basel III”). Although many of the rules contained in these final regulations are applicable only to large, internationally active banks, some of them will apply on a phased-in basis to all banking organizations, including Bancorp and the Bank.

The following are among the new requirements that are being phased in beginning January 1, 2015:

• An increase in the minimum Tier 1 capital ratio from 4.00% to 6.00% of risk-weighted assets.

• A new category and a required 4.50% of risk-weighted assets ratio is established for “common equity Tier 1” as a subset of Tier 1 capital limited to common equity.

• A minimum non-risk-based leverage ratio is set at 4.00%, eliminating a 3.00% exception for higher rated banks.

• Changes in the permitted composition of Tier 1 capital to exclude trust preferred securities, mortgage servicing rights and certain deferred tax assets, and to include unrealized gains and losses on available-for-sale debt and equity securities.

• A new additional capital conservation buffer of 2.5% of risk-weighted assets over each of the required capital ratios that will be phased in from 2016 to 2019 and must be met to avoid limitations in the ability of the Company to pay dividends, repurchase shares, or pay discretionary bonuses.

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• The risk-weights of certain assets for purposes of calculating the risk-based capital ratios are changed for high volatility commercial real estate acquisition, development, and construction loans, certain past due non-residential mortgage loans and certain mortgage-backed and other securities exposures.

• An additional “countercyclical capital buffer” is required for larger and more complex institutions.

Dividend Policy

Holders of common stock are entitled to dividends as and when declared by our Board of Directors out of funds legally available for the payment of dividends. Although we have historically paid cash dividends on our common stock, we are not required to do so. The amount of future dividends will depend on our earnings, financial condition, capital requirements and other factors, and will be determined by our Board of Directors. Our Board of Directors increased the common stock dividend to $0.14 per share in June 2015, and $0.18 per share in December 2015. The terms of our Junior Subordinated Notes also limit our ability to pay dividends.

The Company declared a cash dividend of $.18 per share on 78,794,528 shares outstanding on March 1, 2016, for distribution to holders of our common stock on March 11, 2016. Total cash dividends of $14.2 million were paid during the first quarter of 2016.

Country Risk Exposures

The Company’s total assets were $13.3 billion and total foreign country risk net exposures were $641.7 million as of March 31, 2016. Total foreign country risk net exposures as of March 31, 2016, were comprised primarily of $330.7 million from Hong Kong, $67.2 million from England, $65.5 million from China, $32.5 million from Switzerland, $30.0 million from Australia, $29.2 million from Germany, $23.6 million from France, $21.4 million from Canada, $20.0 million from the Philippines, $15.0 million from Singapore, $2.2 million from Indonesia, $1.8 million from Macau, and $1.4 million from Taiwan. Risk is determined based on location of the borrowers, issuers, and counterparties.

All foreign country risk net exposures as of March 31, 2016 were to non-sovereign counterparties, except $7.6 million due from the Hong Kong Monetary Authority.

Unfunded loans to foreign entities exposures were $40.0 million to two financial institutions in China and $0.7 million to a borrower of a Taiwan residence as of March 31, 2016.

Financial Derivatives

It is the policy of the Company not to speculate on the future direction of interest rates. However, the Company enters into financial derivatives in order to seek mitigation of exposure to interest rate risks related to our interest-earning assets and interest-bearing liabilities. We believe that these transactions, when properly structured and managed, may provide a hedge against inherent interest rate risk in the Company’s assets or liabilities and against risk in specific transactions. In such instances, the Company may enter into interest rate swap contracts or other types of financial derivatives. Prior to considering any hedging activities, we seek to analyze the costs and benefits of the hedge in comparison to other viable alternative strategies. All hedges must be approved by the Bank’s Investment Committee.

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The Company follows ASC Topic 815 that establishes accounting and reporting standards for financial derivatives, including certain financial derivatives embedded in other contracts, and hedging activities. It requires the recognition of all financial derivatives as assets or liabilities in the Company’s consolidated balance sheet and measurement of those financial derivatives at fair value. The accounting treatment of changes in fair value is dependent upon whether or not a financial derivative is designated as a hedge and, if so, the type of hedge. Fair value is determined using third-party models with observable market data. For derivatives designated as cash flow hedges, changes in fair value are recognized in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. For derivatives designated as fair value hedges, changes in the fair value of the derivatives are reflected in current earnings, together with changes in the fair value of the related hedged item if there is a highly effective correlation between changes in the fair value of the interest rate swaps and changes in the fair value of the underlying asset or liability that is intended to be hedged. If there is not a highly effective correlation between changes in the fair value of the interest rate swap and changes in the fair value of the underlying asset or liability that is intended to be hedged, then only the changes in the fair value of the interest rate swaps are reflected in the Company’s consolidated financial statements.

In May 2014, Bancorp entered into interest rate swap contracts in the notional amount of $119.1 million for a period of ten years. The objective of these interest rate swap contracts, which were designated as hedging instruments in cash flow hedges, was to hedge on Bancorp’s $119.1 million of Junior Subordinated Debentures that had been issued to five trusts, with the quarterly interest payments throughout the ten-year period beginning in June 2014 and ending in June 2024, from the risk of variability of these payments resulting from changes in the three-month LIBOR interest rate. Bancorp pays a weighted average fixed interest rate of 2.61% and receives a variable interest rate of the three-month LIBOR at a weighted average rate of 0.63%. As of March 31, 2016, the notional amount of cash flow interest rate swaps was $119.1 million and their unrealized loss of $6.1 million, net of taxes, was included in other comprehensive income. The amount of periodic net settlement of interest rate swaps included in interest expense was $620,000 for the three months ended March 31, 2016 compared to $703,000 for the same quarter a year ago.

As of March 31, 2016, the Bank entered into interest rate swap contracts for various terms from four to eight years. These interest rate swap contracts are matched to individual fixed-rate commercial real estate loans in the Bank’s loan portfolio. These contracts have been designated as hedging instruments to hedge the risk of changes in the fair value of the underlying commercial real estate loan due to changes in interest rates. The swap contracts are structured so that the notional amounts reduce over time to match the contractual amortization of the underlying loan and allow prepayments with the same pre-payment penalty amounts as the related loan. The Bank pays a weighted average fixed rate of 4.68% and receives a variable rate at the one month LIBOR rate plus a weighted average spread of 321 basis points, or at a weighted average rate of 3.64%. As of March 31, 2016, the notional amount of fair value interest rate swaps was $357.5 million and their unrealized loss of $4.3 million was included in other non-interest income. The amount of periodic net settlement of interest rate swaps reducing interest income was $934,000 for the three months ended March 31, 2016, compared to $683,000 for the same quarter a year ago. As of March 31, 2016, the ineffective portion of these interest rate swaps was not significant.

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Interest rate swap contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have a strong credit profile and be approved by the Company’s Board of Directors. The Company’s credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps by each counterparty. Credit exposure may be reduced by the amount of collateral pledged by the counterparty. Bancorp’s interest rate swaps have been assigned by the counterparties to a derivatives clearing organization and daily margin is indirectly maintained with the derivatives clearing organization. Cash posted as collateral by Bancorp related to derivative contracts totaled $13.3 million as of March 31, 2016.

The Company enters into foreign exchange forward contracts with various counterparties to mitigate the risk of fluctuations in foreign currency exchange rates for foreign exchange certificates of deposit or foreign exchange contracts entered into with our clients. These contracts are not designated as hedging instruments and are recorded at fair value in our condensed consolidated balance sheets. Changes in the fair value of these contracts as well as the related foreign exchange certificates of deposit and foreign exchange contracts are recognized immediately in net income as a component of non-interest income. Period end gross positive fair values are recorded in other assets and gross negative fair values are recorded in other liabilities. As of March 31, 2016, there was no option contracts outstanding. As of March 31, 2016, spot, forward, and swap contracts with a total notional amount of $138.2 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $73.0 million had a negative fair value of $913,000 as of March 31, 2016. As of December 31, 2015, the notional amount of option contracts totaled $9.4 million with a net negative fair value of $28,000. As of December 31, 2015, spot, forward, and swap contracts with a total notional amount of $100.6 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $115.4 million had a negative fair value of $4.1 million as of December 31, 2015.

Liquidity

Liquidity is our ability to maintain sufficient cash flow to meet maturing financial obligations and customer credit needs, and to take advantage of investment opportunities as they are presented in the marketplace. Our principal sources of liquidity are growth in deposits, proceeds from the maturity or sale of securities and other financial instruments, repayments from securities and loans, federal funds purchased, securities sold under agreements to repurchase, and advances from the FHLB. For March 2016, our average monthly liquidity ratio (defined as net cash plus short-term and marketable securities to net deposits and short-term liabilities) was 13.0% compared to 15.8% as of December 31, 2015.

The Bank is a shareholder of the FHLB of San Francisco, enabling it to have access to lower cost FHLB financing when necessary. As of March 31, 2016, the Bank had an approved credit line with the FHLB totaling $4.8 billion. Advances from the FHLB were $475.0 million and standby letter of credits issued by FHLB on the Company’s behalf were $82.4 million as of March 31, 2016. The Bank expects to be able to access this source of funding, if required, in the near term. The Bank has pledged a portion of its commercial loans to the Federal Reserve Bank’s Discount Window under the Borrower-in-Custody program to secure these borrowings. As of March 31, 2016, the borrowing capacity under the Borrower-in-Custody program was $53.8 million.

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Liquidity can also be provided through the sale of liquid assets, which consist of federal funds sold, securities sold under agreements to repurchase, and unpledged investment securities. As of March 31, 2016, investment securities totaled $1.48 billion, with $445.6 million pledged as collateral for borrowings and other commitments. The remaining $1.0 billion was available as additional liquidity or to be pledged as collateral for additional borrowings.

Approximately 76.1% of the Company’s time deposits mature within one year or less as of March 31, 2016. Management anticipates that there may be some outflow of these deposits upon maturity due to the keen competition in the Bank’s marketplace. However, based on our historical run-off experience, we expect that the outflow will be minimal and can be replenished through our normal growth in deposits. Management believes the above-mentioned sources will provide adequate liquidity to the Bank to meet its daily operating needs.

The business activities of Bancorp consist primarily of the operation of the Bank and limited activities in other investments. The Bank paid dividends to Bancorp totaling $163.3 million in 2015 and $60.0 million in the first quarter of 2016. 

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We use a net interest income simulation model to measure the extent of the differences in the behavior of the lending and funding rates to changing interest rates, so as to project future earnings or market values under alternative interest rate scenarios. Interest rate risk arises primarily through the Company’s traditional business activities of extending loans and accepting deposits. Many factors, including economic and financial conditions, movements in interest rates, and consumer preferences affect the spread between interest earned on assets and interest paid on liabilities. The net interest income simulation model is designed to measure the volatility of net interest income and net portfolio value, defined as net present value of assets and liabilities, under immediate rising or falling interest rate scenarios in 100 basis point increments.

Although the modeling is very helpful in managing interest rate risk, it does require significant assumptions for the projection of loan prepayment rates on mortgage related assets, loan volumes and pricing, and deposit and borrowing volume and pricing, that might prove inaccurate. Because these assumptions are inherently uncertain, the model cannot precisely estimate net interest income, or precisely predict the effect of higher or lower interest rates on net interest income. Actual results will differ from simulated results due to the timing, magnitude, and frequency of interest rate changes, the differences between actual experience and the assumed volume, changes in market conditions, and management strategies, among other factors. The Company monitors its interest rate sensitivity and attempts to reduce the risk of a significant decrease in net interest income caused by a change in interest rates.

We have established a tolerance level in our policy to define and limit net interest income volatility to a change of plus or minus 5% when the hypothetical rate change is plus or minus 200 basis points. When the net interest rate simulation projects that our tolerance level will be met or exceeded, we seek corrective action after considering, among other things, market conditions, customer reaction, and the estimated impact on profitability. The Company’s simulation model also projects the net economic value of our portfolio of assets and liabilities. We have established a tolerance level in our policy to limit the loss in the net economic value of our portfolio of assets and liabilities to zero when the hypothetical rate change is plus or minus 200 basis points.

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The table below shows the estimated impact of changes in interest rates on net interest income and market value of equity as of March 31, 2016:

	Net Interest		Market Value
	Income		of Equity
Change in Interest Rate (Basis Points)	Volatility (1)		Volatility (2)
+200		7.4		0.2
+100		3.5		0.4
-100		-2.5		3.0
-200		-2.8		6.3

(1) The percentage change in this column represents net interest income of the Company for 12 months in a stable interest rate environment versus the net interest income in the various rate scenarios.

(2) The percentage change in this column represents the net portfolio value of the Company in a stable interest rate environment versus the net portfolio value in the various rate scenarios.

ITEM 4. CONTROLS AND PROCEDURES.

The Company’s principal executive officer and principal financial officer have evaluated the effectiveness of the Company’s “disclosure controls and procedures,” as such term is defined in Rule 13a-15(e) or 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this quarterly report. Based upon their evaluation, the principal executive officer and principal financial officer have concluded that the Company’s disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in the reports filed or submitted by it under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and include controls and procedures designed to ensure that information required to be disclosed by the Company in such reports is accumulated and communicated to the Company’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

There has not been any change in our internal control over financial reporting that occurred during the first quarter of 2016 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II – OTHER INFORMATION

ITEM 1.     LEGAL PROCEEDINGS.

Bancorp’s wholly-owned subsidiary, Cathay Bank, is a party to ordinary routine litigation from time to time incidental to various aspects of its operations. Management does not believe that any such litigation is expected to have a material adverse impact on the Company’s consolidated financial condition or results of operations.

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ITEM 1A.     RISK FACTORS.

There is no material change in the risk factors as previously disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, in response to Item 1A in Part I of Form 10-K.

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

ISSUER PURCHASES OF EQUITY SECURITIES
Period	(a) Total Number of Shares (or Units) Purchased		(b) Average Price Paid per Share (or Unit)		(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs (1)
Month #1 (January 1, 2016 - January 31, 2016)		554,000	$	26.67		554,000	79,250 shares
Month #2 (February 1, 2016 - February 29, 2016)		1,459,828	$	27.17		1,459,828	$	7,543,008
Month #3 (March 1, 2016 - March 31, 2016)		0	$	0		0	$	7,543,008
Total		2,013,828	$	27.03		2,013,828	$	7,543,008

(1) On February 1, 2016, the Company’s Board of Directors announced a repurchase program authorizing the repurchase of up to $45.0 million of its common stock.

For a discussion of limitations on the payment of dividends, see “Dividend Policy” and “Liquidity” under Part I—Item 2—“Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

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ITEM 3.     DEFAULTS UPON SENIOR SECURITIES.

Not applicable.

ITEM 4.     MINE SAFETY DISCLOSURES.

Not applicable.

ITEM 5.     OTHER INFORMATION.

None.

ITEM 6.     EXHIBITS.

Exhibit 31.1 Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31.2 Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 32.1 Certification of the Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32.2 Certification of the Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 101.INS XBRL Instance Document *

Exhibit 101.SCH XBRL Taxonomy Extension Schema Document*

Exhibit 101.CAL XBRL Taxonomy Extension Calculation Linkbase Document*

Exhibit 101.DEF XBRL Taxonomy Extension Definition Linkbase Document*

Exhibit 101.LAB XBRL Taxonomy Extension Label Linkbase Document*

Exhibit 101.PRE XBRL Taxonomy Extension Presentation Linkbase Document*

____________________

* XBRL (Extensible Business Reporting Language) information shall not be deemed to be filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, shall not be deemed to be filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise shall not be subject to liability under these sections, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, except as expressly set forth by specific reference in such filing.

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SIGNATURES

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

Cathay General Bancorp

(Registrant)

Date: May 9, 2016
	/s/ Dunson K. Cheng
	Dunson K. Cheng Chairman, President, and Chief Executive Officer

Date: May 9, 2016
	/s/ Heng W. Chen
	Heng W. Chen Executive Vice President and Chief Financial Officer

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EX-31.1

Exhibit 31.1

I, Dunson K. Cheng, certify that:

1.     I have reviewed this quarterly report on Form 10-Q of Cathay General Bancorp;

2.     Based on my knowledge, this quarterly 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 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.

/s/ Dunson K. Cheng                                                   

Dunson K. Cheng

President and

Chief Executive Officer

Date: May 9, 2016

EX-31.2

Exhibit 31.2

I, Heng W. Chen, certify that:

1.     I have reviewed this quarterly report on Form 10-Q of Cathay General Bancorp;

2.     Based on my knowledge, this quarterly 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 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.

/s/ Heng W. Chen                                                  

Heng W. Chen

Executive Vice President and

Chief Financial Officer

Date: May 9, 2016

EX-32.1

Exhibit 32.1

CEO CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Cathay General Bancorp (the “Company”) on Form 10-Q for the period ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dunson K. Cheng, chief executive officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)     The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

/s/ Dunson K. Cheng                                                         

Dunson K. Cheng

President and

Chief Executive Officer

Date: May 9, 2016

EX-32.2

Exhibit 32.2

CFO CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Cathay General Bancorp (the “Company”) on Form 10-Q for the period ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Heng W. Chen, chief financial officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)     The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

/s/ Heng W. Chen                                                          

Heng W. Chen

Executive Vice President and

Chief Financial Officer

Date: May 9, 2016

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Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	CATHAY GENERAL BANCORP
Trading Symbol	caty
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		78,844,013
Amendment Flag	false
Entity Central Index Key	0000861842
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 192,642	$ 180,130
Short-term investments and interest bearing deposits	432,384	536,880
Securities available-for-sale (amortized cost of $1,476,424 in 2016 and $1,595,723 in 2015)	1,485,124	1,586,352
Loans held for sale		6,676
Loans	10,363,647	10,163,452
Less: Allowance for loan losses	(134,552)	(138,963)
Unamortized deferred loan fees, net	(7,585)	(8,262)
Loans, net	10,221,510	10,016,227
Federal Home Loan Bank stock	17,250	17,250
Other real estate owned, net	27,271	24,701
Affordable housing investments and alternative energy partnerships, net	212,795	182,943
Premises and equipment, net	108,231	108,924
Customers’ liability on acceptances	26,843	40,335
Accrued interest receivable	32,517	30,558
Goodwill	372,189	372,189
Other intangible assets, net	3,497	3,677
Other assets	129,766	147,284
Total assets	13,262,019	13,254,126
Deposits
Non-interest-bearing demand deposits	2,059,073	2,033,048
Interest-bearing deposits:
NOW deposits	992,278	966,404
Money market deposits	1,923,114	1,905,719
Savings deposits	602,154	618,164
Time deposits	4,747,497	4,985,752
Total deposits	10,324,116	10,509,087
Securities sold under agreements to repurchase	400,000	400,000
Advances from the Federal Home Loan Bank	475,000	275,000
Other borrowings for affordable housing investments	17,792	18,593
Long-term debt	119,136	119,136
Acceptances outstanding	26,843	40,335
Other liabilities	164,459	144,197
Total liabilities	$ 11,527,346	$ 11,506,348
Commitments and contingencies
Stockholders’ Equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 87,047,371 issued and 78,836,728 outstanding at March 31, 2016, and 87,002,931 issued and 80,806,116 outstanding at December 31, 2015	$ 870	$ 870
Additional paid-in-capital	882,825	880,822
Accumulated other comprehensive loss, net	(1,073)	(8,426)
Retained earnings	1,091,640	1,059,660
Treasury stock, at cost (8,210,643 shares at March 31, 2016, and 6,196,815 shares at December 31, 2015)	(239,589)	(185,148)
Total equity	1,734,673	1,747,778
Total liabilities and equity	$ 13,262,019	$ 13,254,126

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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities available-for-sale, amortized cost (in Dollars)	$ 1,476,424	$ 1,595,723
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	87,047,371	87,002,931
Common stock, shares outstanding	78,836,728	80,806,116
Treasury stock, shares	8,210,643	6,196,815

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Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest and Dividend Income
Loans receivable, including loan fees	$ 114,890	$ 100,100
Investment securities	6,859	3,774
Federal Home Loan Bank stock	347	581
Deposits with banks	249	479
Total interest and dividend income	122,345	104,934
Interest Expense
Time deposits	10,857	6,773
Other deposits	3,640	4,793
Securities sold under agreements to repurchase	3,934	3,925
Advances from Federal Home Loan Bank	106	93
Long-term debt	1,440	1,424
Total interest expense	19,977	17,008
Net interest income before reversal for credit losses	102,368	87,926
Reversal for loan losses	(10,500)	(5,000)
Net interest income after reversal for credit losses	112,868	92,926
Non-Interest Income
Securities losses, net	(206)	(21)
Letters of credit commissions	1,281	1,268
Depository service fees	1,323	1,301
Other operating income	5,143	6,001
Total non-interest income	7,541	8,549
Non-Interest Expense
Salaries and employee benefits	26,931	22,616
Occupancy expense	4,369	4,021
Computer and equipment expense	2,580	2,502
Professional services expense	4,368	3,370
Data processing service expense	2,250	1,982
FDIC and State assessments	2,589	2,260
Marketing expense	796	820
Other real estate owned expense	295	483
Amortization of investments in low income housing and alternative energy partnerships	2,794	2,383
Amortization of core deposit intangibles	172	177
Other operating expense	4,427	3,517
Total non-interest expense	51,571	44,131
Income before income tax expense	68,838	57,344
Income tax expense	22,675	21,364
Net income	46,163	35,980
Other comprehensive income, net of tax
Unrealized holding gain on securities available-for-sale	10,354	6,499
Less: reclassification adjustments included in net income	(119)	(12)
Unrealized holding loss on cash flow hedge derivatives	(3,120)	(1,588)
Total other comprehensive gain, net of tax	7,353	4,923
Total comprehensive income	$ 53,516	$ 40,903
Net income per common share:
Basic (in Dollars per share)	$ 0.58	$ 0.45
Diluted (in Dollars per share)	0.57	0.45
Cash dividends paid per common share (in Dollars per share)	$ 0.18	$ 0.10
Average common shares outstanding
Basic (in Shares)	79,734,519	79,835,628
Diluted (in Shares)	80,393,849	80,309,383

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows from Operating Activities
Net income	$ 46,163,000	$ 35,980,000
Adjustments to reconcile net income to net cash provided by/(used in) operating activities:
Credit for loan losses	(10,500,000)	(5,000,000)
Provision for losses on other real estate owned	128,000	181,000
Deferred tax liability	13,315,000	6,840,000
Depreciation and amortization	1,923,000	1,929,000
Net losses on sale and transfer of other real estate owned		154,000
Net gains on sale of loans	(102,000)	(596,000)
Proceeds from sales of loans	3,391,000	10,360,000
Originations of loans held-for-sale	(3,289,000)	(8,791,000)
Amortization on alternative energy partnerships, venture capital and other investments	1,304,000	224,000
Net losses on sales and calls of securities		21,000
Amortization/accretion of security premiums/discounts, net	1,527,000	502,000
Write-down on impaired securities	206,000
Excess tax short-fall from share-based payment arrangements		4,395,000
Stock based compensation and stock issued to officers as compensation	1,578,000	1,570,000
Net change in accrued interest receivable and other assets	(7,328,000)	6,631,000
Net change in other liabilities	(7,207,000)	1,379,000
Net cash provided by operating activities	41,109,000	55,779,000
Cash Flows from Investing Activities
Decrease/(increase) in short-term investments	104,496,000	(129,112,000)
Purchase of investment securities available-for-sale	(25,898,000)	(703,305,000)
Proceeds from sale of investment securities available-for-sale		741,992,000
Proceeds from repayments, maturities and calls of investment securities available-for-sale	143,464,000	12,102,000
Redemptions of Federal Home Loan Bank stock		5,785,000
Net increase in loans	(174,402,000)	(305,651,000)
Purchase of premises and equipment	(1,063,000)	(562,000)
Proceeds from sales of other real estate owned		1,043,000
Investment in affordable housing and alternative energy partnerships	(22,326,000)	(1,351,000)
Net cash provided by/(used in) investing activities	24,271,000	(379,059,000)
Cash Flows from Financing Activities
Net (decrease)/increase in deposits	(184,803,000)	329,724,000
Net decrease in federal funds purchased and securities sold under agreements to repurchase		(50,000,000)
Advances from Federal Home Loan Bank	450,000,000	2,242,000,000
Repayment of Federal Home Loan Bank borrowings	(250,000,000)	(2,182,000,000)
Cash dividends paid	(14,183,000)	(7,983,000)
Purchase of treasury stock	(54,441,000)
Proceeds from shares issued under Dividend Reinvestment Plan	545,000	1,289,000
Proceeds from exercise of stock options	49,000	88,000
Taxes paid related to net share settlement of RSUs	(35,000)	(114,000)
Excess tax short-fall from share-based payment arrangements		(4,395,000)
Net cash provided by/(used in) financing activities	(52,868,000)	328,609,000
Increase in cash and cash equivalents	12,512,000	5,329,000
Cash and cash equivalents, beginning of the period	180,130,000	176,830,000
Cash and cash equivalents, end of the period	192,642,000	182,159,000
Cash paid during the period:
Interest	20,310,000	17,370,000
Income taxes paid	4,789,000	11,884,000
Non-cash investing and financing activities:
Net change in unrealized holding gain on securities available-for-sale, net of tax	10,473,000	6,511,000
Net change in unrealized holding loss on cash flow hedge derivatives	(3,120,000)	(1,588,000)
Transfers to other real estate owned from loans held for investment	2,698,000	$ 701,000
Loans transferred from held for sale to held for investment, net	$ 6,676,000

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Note 1 - Business

3 Months Ended

Mar. 31, 2016

Disclosure Text Block [Abstract]

Nature of Operations [Text Block]

1. Business

Cathay General Bancorp (“Bancorp”) is the holding company for Cathay Bank (the “Bank” and, together, the “Company”), six limited partnerships investing in affordable housing investments in which the Bank is the sole limited partner, and GBC Venture Capital, Inc. Bancorp also owns 100% of the common stock of five statutory business trusts created for the purpose of issuing capital securities. The Bank was founded in 1962 and offers a wide range of financial services. As of March 31, 2016, the Bank operated 21 branches in Southern California, 12 branches in Northern California, 12 branches in New York State, three branches in Illinois, three branches in Washington State, two branches in Texas, one branch in Massachusetts, one branch in New Jersey, one branch in Maryland, one branch in Nevada, one branch in Hong Kong, and a representative office in Shanghai and in Taipei. Deposit accounts at the Hong Kong branch are not insured by the Federal Deposit Insurance Corporation (the “FDIC”).

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Note 2 - Basis of Presentation

3 Months Ended

Mar. 31, 2016

Disclosure Text Block [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

2. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. For further information, refer to the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

The preparation of the condensed consolidated financial statements in accordance with GAAP requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The most significant estimates subject to change are the allowance for loan losses, goodwill impairment, and other-than-temporary impairment.

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Note 3 - Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements and Changes in Accounting Principles [Text Block]

3. Recent Accounting Pronouncements

In January 2016, the FASB issued ASU 2016-01, “Financial Instruments Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities.” This update requires an entity to measure equity investments with readily determinable fair values at fair value with changes in fair value recognized in net income. Equity investment without readily determinable fair values will be measured at fair value either upon the occurrence of an observable price change or upon identification of an impairment and any amount by which the carrying value exceeding the fair value will be recognized as an impairment in net income. This update also requires an entity to disclose fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price option. In addition, this update requires separate presentation in comprehensive income for changes in the fair value of a liability and in the balance sheet by measurement category and form of financial asset. ASU 2016-01 becomes effective for interim and annual periods beginning after December 15, 2017.  Adoption of ASU 2016-01 is not expected to have a significant impact on the Company’s consolidated financial statements.

In March 2016, the FASB issued ASU 2016-06, “Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments.” This update requires an entity to perform a four-step decision sequence when assessing whether contingent call or put options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. The four-step decision sequence is: the payoff is adjusted based on changes in an index; the payoff is indexed to an underlying other than interest rates or credit risk; the debt involves a substantial premium or discount; and the call or put option is contingently exercisable. ASU 2016-06 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-06 is not expected to have a significant impact on the Company’s consolidated financial statements.

In March 2016, the FASB issued ASU 2016-07, “Investments Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting.” This update eliminates the requirement to retroactively adopt the equity method of accounting. It requires that an equity method investor add the cost of acquiring the additional interest to the current basis of the previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. The retroactive adjustment of the investment is no longer required. ASU 2016-07 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-07 is not expected to have a significant impact on the Company’s consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, “Compensation Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.” This update simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. ASU 2016-09 becomes effective for interim and annual periods beginning after December 15, 2016.  Adoption of ASU 2016-09 is not expected to have a significant impact on the Company’s consolidated financial statements.

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Note 4 - Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

4. Earnings per Share

Basic earnings per share excludes dilution and is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock and resulted in the issuance of common stock that then shared in earnings.

Outstanding stock options with anti-dilutive effect were not included in the computation of diluted earnings per share. The following table sets forth earnings per common share calculations:

	Three months ended March 31,
(Dollars in thousands, except share and per share data)	2016		2015
Net income	$	46,163	$	35,980
Weighted-average shares:
Basic weighted-average number of common shares outstanding		79,734,519		79,835,628
Dilutive effect of weighted-average outstanding common share equivalents
Warrants		452,368		344,919
Options		83,018		108,457
Restricted stock units		123,944		20,379
Diluted weighted-average number of common shares outstanding		80,393,849		80,309,383
Average stock options and warrants with anti-dilutive effect		359,544		1,670,231
Earnings per common share:
Basic	$	0.58	$	0.45
Diluted	$	0.57	$	0.45

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Note 5 - Stock-based Compensation

3 Months Ended

Mar. 31, 2016

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

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

5. Stock-Based Compensation

Under the Company’s equity incentive plans, directors and eligible employees may be granted incentive or non-statutory stock options and/or restricted stock units, or awarded non-vested stock.As of March 31, 2016, the only options granted by the Company were non-statutory stock options to selected Bank officers and non-employee directors at exercise prices equal to the fair market value of a share of the Company’s common stock on the date of grant. Such options have a maximum ten-year term and vest in 20% annual increments (subject to early termination in certain events) except certain options granted to the Chief Executive Officer of the Company in 2005 and 2008. There were no options granted during the first quarter of 2016 or 2015.

Option compensation expense was zero for the three months ended March 31, 2016, and March 31, 2015. Stock-based compensation was fully recognized over the requisite service period for all awards. There were 2,110 and 3,750 stock option shares exercised in the first quarter ended March 31, 2016 and 2015, respectively. The Company received $49,000 with an aggregate intrinsic value of $9,000 from the exercise of stock options during the first quarter ended March 31, 2016 compared to $88,000 with an aggregate intrinsic value of $10,000 during the first quarter of March 31, 2015. The table below summarizes stock option activity for the periods indicated:

	Shares			Weighted-average Exercise Price		Weighted-average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Balance, December 31, 2015		1,031,170		$	31.27		0.9	$	3,268
Exercised		(2,110	)		23.37
Forfeited		(608,670	)		36.46
Balance, March 31, 2016		420,390		$	23.80		1.8	$	2,026
Exercisable, March 31, 2016		420,390		$	23.80		1.8	$	2,026

In addition to stock options, the Company also grants restricted stock units to eligible employees that vest subject to continued employment at the vesting dates.

The Company did not grant any restricted stock units in the first quarter of 2016. The Company granted restricted stock units for 37,675 shares at an average closing price for $27.53 per share in 2015.

In December 2013, the Company granted performance share unit awards in which the number of units earned is calculated based on the relative total shareholder return (TSR) of the Company’s common stock as compared to the TSR of the KBW Regional Banking Index. In addition, the Company granted performance share unit awards in which the number of units earned is determined by comparison to the targeted EPS as defined in the award for the 2014 to 2016 period. Performance TSR restricted stock units for 119,840 shares and performance EPS restricted stock units for 116,186 shares were granted to eight executive officers in 2013. In December 2014, the Company granted additional performance TSR restricted stock units for 60,456 shares and performance EPS restricted stock units for 57,642 shares were granted to seven executive officers. In December 2015, the Company granted additional performance TSR restricted stock units for 61,209 shares and performance EPS restricted stock units for 57,409 shares were granted to seven executive officers. Both the performance TSR and performance EPS units awarded are scheduled to vest three years from grant date.

The following table presents restricted stock unit activity during the three months ended March 31, 2016:

	Units
Balance at December 31, 2015		542,375
Vested		(4,812	)
Balance at March 31, 2016		537,563

The compensation expense recorded for restricted stock units was $1.0 million for the first quarter ended March 31, 2016, compared to $1.1 million in the same period a year ago. Unrecognized stock-based compensation expense related to restricted stock units was $6.5 million as of March 31, 2016, and is expected to be recognized over the next 2.2 years.

As of March 31, 2016, 3,789,782 shares were available under the Company’s 2005 Incentive Plan (as Amended and Restated) for future grants.

The following table summarizes the tax benefit (short-fall) from share-based payment arrangements:

	Three months ended March 31,
(Dollars in thousands)	2016			2015
Tax benefit/(short-fall) of tax deductions in excess of grant-date fair value	$	(3,298	)	$	(4,395	)
Benefit of tax deductions on grant-date fair value		3,302			4,442
Total benefit of tax deductions	$	4		$	47

The short-fall amount from share-based payment arrangements was charged against income tax expense. In addition, $140,000 was offset against the additional paid-in capital that resulted from previously realized excess tax benefits.

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Note 6 - Investment Securities

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

6. Investment Securities

Investment securities were $1.49 billion as of March 31, 2016, compared to $1.59 billion as of December 31, 2015. The following tables reflect the amortized cost, gross unrealized gains, gross unrealized losses, and fair value of investment securities as of March 31, 2016, and December 31, 2015:

	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,750	$	61	$	7	$	224,804
U.S. government sponsored entities		100,000		10		-		100,010
Mortgage-backed securities		1,063,944		6,553		4		1,070,493
Collateralized mortgage obligations		60		-		26		34
Corporate debt securities		74,957		413		2,267		73,103
Mutual funds		6,000		-		85		5,915
Preferred stock of government sponsored entities		2,811		478		486		2,803
Other equity securities		3,902		4,060		-		7,962
Total	$	1,476,424	$	11,575	$	2,875	$	1,485,124

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	284,678	$	5	$	395	$	284,288
U.S. government sponsored entities		150,000		-		1,840		148,160
Mortgage-backed securities		1,073,108		560		11,399		1,062,269
Collateralized mortgage obligations		63		-		27		36
Corporate debt securities		74,955		425		1,525		73,855
Mutual funds		6,000		-		167		5,833
Preferred stock of government sponsored entities		2,811		633		228		3,216
Other equity securities		4,108		4,929		342		8,695
Total	$	1,595,723	$	6,552	$	15,923	$	1,586,352

The amortized cost and fair value of investment securities as of March 31, 2016, by contractual maturities, are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or repay obligations with or without call or repayment penalties.  

	Securities Available-For-Sale
	Amortized cost		Fair value
	(In thousands)
Due in one year or less	$	154,963	$	154,978
Due after one year through five years		104,879		105,470
Due after five years through ten years		145,501		143,358
Due after ten years (1)		1,071,081		1,081,318
Total	$	1,476,424	$	1,485,124

(1) Equity securities are reported in this category

There were no sales transactions of mortgage-backed securities during the first quarter of 2016. Proceeds of $406.9 million were received from the sale of mortgage-backed securities during the three months ended March 31, 2015. Proceeds from repayments, maturities and calls of mortgage-backed securities were $33.5 million and $12.1 million for the three months ended March 31, 2016 and 2015, respectively. There were no sales transactions of other investment securities during the three months ended March 31, 2016. Proceeds of $335.1 million were received from the sale of other investment securities during the three months ended March 31, 2015. Proceeds from maturities and calls of other investment securities were $110.0 million during the three months ended March 31, 2016 compared to zero during the same period a year ago. No gains and losses were realized on sales of investment securities but a permanent impairment write-down of $206,000 was recorded during the three months ended March 31, 2016 compared to gains of $1.7 million and losses of $1.7 million realized during the same period a year ago.

The tables below show the fair value and unrealized losses of the temporarily impaired securities in our investment securities portfolio as of March 31, 2016, and December 31, 2015:

	March 31, 2016
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	29,965	$	7	$	-	$	-	$	29,965	$	7
Mortgage-backed securities		389		3		46		1		435		4
Collateralized mortgage obligations		-		-		34		26		34		26
Corporate debt securities		9,950		50		42,783		2,217		52,733		2,267
Mutual funds		-		-		5,915		85		5,915		85
Preferred stock of government sponsored entities		2,230		486		-		-		2,230		486
Total	$	42,534	$	546	$	48,778	$	2,329	$	91,312	$	2,875

	December 31, 2015
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,289	$	395	$	-	$	-	$	224,289	$	395
U.S. government sponsored entities		148,160		1,840		-		-		148,160		1,840
Mortgage-backed securities		1,025,342		11,398		6		1		1,025,348		11,399
Collateralized mortgage obligations		-		-		36		27		36		27
Corporate debt securities		9,950		50		43,525		1,475		53,475		1,525
Mutual funds		-		-		5,833		167		5,833		167
Preferred stock of government sponsored entities		2,488		228		-		-		2,488		228
Other equity securities		158		342		-		-		158		342
Total	$	1,410,387	$	14,253	$	49,400	$	1,670	$	1,459,787	$	15,923

As of March 31, 2016, the Company had unrealized losses of $2.9 million. The unrealized losses on these securities were primarily attributed to yield curve movement, together with the widened liquidity spread and credit spread. The issuers have not, to the Company’s knowledge, established any cause for default on these securities. Management believes the impairment was temporary and, accordingly, no impairment loss on these securities has been recognized in our condensed consolidated statements of operations. The Company expects to recover the amortized cost basis of its debt securities, and has no intent to sell and will not be required to sell available-for-sale debt securities that have declined below their cost before their anticipated recovery.

Investment securities having a carrying value of $445.6 million as of March 31, 2016, and $449.6 million as of December 31, 2015, were pledged to secure public deposits, other borrowings, treasury tax and loan, and securities sold under agreements to repurchase. 

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Note 7 - Loans

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

7. Loans

Most of the Company’s business activity is with Asian customers located in Southern and Northern California; New York City, New York; Houston and Dallas, Texas; Seattle, Washington; Boston, Massachusetts; Chicago, Illinois; Edison, New Jersey; Rockville, Maryland; Las Vegas, Nevada, and Hong Kong. The Company has no specific industry concentration, and generally its loans are secured by real property or other collateral of the borrowers. Loans are generally expected to be paid off from the operating profits of the borrowers, from refinancing by other lenders, or through sale by the borrowers of the secured collateral.

The types of loans in the condensed consolidated balance sheets as of March 31, 2016, and December 31, 2015, were as follows:

	March 31, 2016			December 31, 2015
	(In thousands)
Type of Loans:
Commercial loans	$	2,251,187		$	2,316,863
Residential mortgage loans		2,043,789			1,932,355
Commercial mortgage loans		5,445,575			5,301,218
Real estate construction loans		453,469			441,543
Equity lines		168,283			168,980
Installment and other loans		1,344			2,493
Gross loans	$	10,363,647		$	10,163,452
Less:
Allowance for loan losses		(134,552	)		(138,963	)
Unamortized deferred loan fees		(7,585	)		(8,262	)
Total loans, net	$	10,221,510		$	10,016,227
Loans held for sale	$	-		$	6,676

As of March 31, 2016, recorded investment in impaired loans totaled $134.8 million and was comprised of non-accrual loans of $44.6 million and accruing troubled debt restructured loans (TDRs) of $90.2 million. As of December 31, 2015, recorded investment in impaired loans totaled $133.8 million and was comprised of non-accrual loans of $52.1 million and accruing TDRs of $81.7 million. For impaired loans, the amounts previously charged off represent 14.2% as of March 31, 2016, and 22.4% as of December 31, 2015, of the contractual balances for impaired loans. The following table presents the average balance and interest income recognized related to impaired loans for the periods indicated:

	Impaired Loans
	Average Recorded Investment				Interest Income Recognized
	Three months ended March 31,				Three months ended March 31,
	2016		2015		2016		2015
Commercial loans	$	12,670	$	25,426	$	120	$	229
Real estate construction loans		20,292		22,990		65		65
Commercial mortgage loans		87,452		110,293		890		917
Residential mortgage loans and equity lines		16,991		17,280		132		124
Total impaired loans	$	137,405	$	175,989	$	1,207	$	1,335

The following table presents impaired loans and the related allowance for loan losses as of the dates indicated:

	Impaired Loans
	March 31, 2016						December 31, 2015
	Unpaid Principal Balance		Recorded Investment		Allowance		Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	10,912	$	8,968	$	-	$	15,493	$	6,721	$	-
Real estate construction loans		33,009		11,857		-		51,290		22,002		-
Commercial mortgage loans		74,480		67,988		-		59,954		54,625		-
Residential mortgage loans and equity lines		4,929		4,784		-		3,233		3,026		-
Subtotal	$	123,330	$	93,597	$	-	$	129,970	$	86,374	$	-
With allocated allowance
Commercial loans	$	4,188	$	2,718	$	225	$	7,757	$	6,847	$	530
Commercial mortgage loans		27,369		26,157		6,593		28,258		27,152		6,792
Residential mortgage loans and equity lines		13,334		12,343		372		14,383		13,437		427
Subtotal	$	44,891	$	41,218	$	7,190	$	50,398	$	47,436	$	7,749
Total impaired loans	$	168,221	$	134,815	$	7,190	$	180,368	$	133,810	$	7,749

The following tables present the aging of the loan portfolio by type as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	35,329	$	7,920	$	-	$	2,645	$	45,894	$	2,205,293	$	2,251,187
Real estate construction loans		1,529		-		-		6,179		7,708		445,761		453,469
Commercial mortgage loans		17,136		1,144		-		28,537		46,817		5,398,758		5,445,575
Residential mortgage loans and equity lines		6,087		-		-		7,282		13,369		2,198,703		2,212,072
Installment and other loans		-		-		-		-		-		1,344		1,344
Total loans	$	60,081	$	9,064	$	-	$	44,643	$	113,788	$	10,249,859	$	10,363,647

	December 31, 2015
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	8,367	$	221	$	-	$	3,545	$	12,133	$	2,304,730	$	2,316,863
Real estate construction loans		7,285		-		-		16,306		23,591		417,952		441,543
Commercial mortgage loans		2,243		2,223		-		25,231		29,697		5,271,521		5,301,218
Residential mortgage loans and equity lines		4,959		1,038		-		7,048		13,045		2,088,290		2,101,335
Installment and other loans		-		-		-		-				2,493		2,493
Total loans	$	22,854	$	3,482	$	-	$	52,130	$	78,466	$	10,084,986	$	10,163,452

The determination of the amount of the allowance for loan losses for impaired loans is based on management’s current judgment about the credit quality of the loan portfolio and takes into consideration known relevant internal and external factors that affect collectability when determining the appropriate level for the allowance for loan losses. The nature of the process by which the Bank determines the appropriate allowance for loan losses requires the exercise of considerable judgment. This allowance evaluation process is also applied to troubled debt restructurings since they are considered to be impaired loans.

A troubled debt restructuring is a formal modification of the terms of a loan when the lender, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower. The concessions may be granted in various forms, including a change in the stated interest rate, a reduction in the loan balance or accrued interest, or an extension of the maturity date that causes significant delay in payment.

TDRs on accrual status are comprised of the loans that have, pursuant to the Bank’s policy, performed under the restructured terms and have demonstrated sustained performance under the modified terms for six months before being returned to accrual status. The sustained performance considered by management pursuant to its policy includes the periods prior to the modification if the prior performance met or exceeded the modified terms. This would include cash paid by the borrower prior to the restructure to set up interest reserves.

As of March 31, 2016, accruing TDRs were $90.2 million and non-accrual TDRs were $23.2 million compared to accruing TDRs of $81.7 million and non-accrual TDRs of $39.9 million as of December 31, 2015. The Company allocated specific reserves of $1.5 million to accruing TDRs and $5.3 million to non-accrual TDRs as of March 31, 2016, and $2.0 million to accruing TDRs and $5.4 million to non-accrual TDRs as of December 31, 2015. There were no TDRs that were modified during the first quarter of 2016. The following table presents TDRs that were modified during the first quarter of 2015, their specific reserves as of March 31, 2015, and charge-offs during the first quarter of 2015:

	Three months ended March 31, 2015								March 31, 2015
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(Dollars in thousands)
Commercial loans		1	$	850	$	850	$	-	$	-
Commercial mortgage loans		3		8,613		8,613		-		-
Residential mortgage loans and equity lines		4		1,522		1,374		148		46
Total		8	$	10,985	$	10,837	$	148	$	46

Modifications of the loan terms during the first quarter of 2015 were in the form of changes in the stated interest rate, an extension of maturity dates, and/or a reduction in monthly payment amounts. The length of time for which modifications involving a reduction of the stated interest rate or changes in payment terms that were documented ranged from six months to three years from the modification date. 

We expect that the TDRs on accruing status as of March 31, 2016, which were all performing in accordance with their restructured terms, will continue to comply with the restructured terms because of the reduced principal or interest payments on these loans.  A summary of TDRs by type of concession and by type of loan, as of March 31, 2016, and December 31, 2015, is shown below:

	March 31, 2016
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	7,446	$	-	$	1,595	$	9,041
Real estate construction loans		-		-		5,679		5,679
Commercial mortgage loans		26,393		6,025		33,189		65,607
Residential mortgage loans		5,154		996		3,695		9,845
Total accruing TDRs	$	38,993	$	7,021	$	44,158	$	90,172

	March 31, 2016
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,001	$	90	$	1,091
Commercial mortgage loans		1,532		20,028		21,560
Residential mortgage loans		381		177		558
Total non-accrual TDRs	$	2,914	$	20,295	$	23,209

	December 31, 2015
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
Commercial loans	$	8,298	$	-	$	1,726	$	10,024
Real estate construction loans		-		-		5,696		5,696
Commercial mortgage loans		16,701		6,045		33,800		56,546
Residential mortgage loans		5,201		999		3,214		9,414
Total accruing TDRs	$	30,200	$	7,044	$	44,436	$	81,680

	December 31, 2015
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,033	$	90	$	1,123
Real estate construction loans		9,981		5,825		15,806
Commercial mortgage loans		1,544		20,362		21,906
Residential mortgage loans		388		700		1,088
Total non-accrual TDRs	$	12,946	$	26,977	$	39,923

The activity within our TDRs for the periods indicated are shown below:

	Three months ended March 31,
Accruing TDRs	2016			2015
	(In thousands)
Beginning balance	$	81,680		$	104,356
New restructurings		-			10,628
Restructured loans restored to accrual status		10,303			-
Charge-offs		-			(148	)
Payments		(1,811	)		(4,254	)
Restructured loans placed on non-accrual status		-			(10,189	)
Ending balance	$	90,172		$	100,393

	Three months ended March 31,
Non-accrual TDRs	2016			2015
	(In thousands)
Beginning balance	$	39,923		$	41,618
New restructurings		-			209
Restructured loans placed on non-accrual status		-			10,189
Charge-offs		-			(2,754	)
Payments		(6,411	)		(4,721	)
Restructured loans restored to accrual status		(10,303	)		-
Ending balance	$	23,209		$	44,541

A loan is considered to be in payment default once it is 60 to 90 days contractually past due under the modified terms.  The Company did not have any loans that were modified as a TDR during the previous twelve months and which subsequently defaulted as of March 31, 2016. 

Under the Company’s internal underwriting policy, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification in order to determine whether a borrower is experiencing financial difficulty.

As of March 31, 2016, there were no commitments to lend additional funds to those borrowers whose loans had been restructured, were considered impaired, or were on non-accrual status.

As part of the on-going monitoring of the credit quality of our loan portfolio, the Company utilizes a risk grading matrix to assign a risk grade to each loan. The risk rating categories can be generally described by the following grouping for non-homogeneous loans: 

● Pass/Watch – These loans range from minimal credit risk to lower than average, but still acceptable, credit risk.

● Special Mention– Borrower is fundamentally sound and loan is currently protected but adverse trends are apparent that, if not corrected, may affect ability to repay. Primary source of loan repayment remains viable but there is increasing reliance on collateral or guarantor support.

● Substandard – These loans are inadequately protected by current sound net worth, paying capacity, or collateral. Well-defined weaknesses exist that could jeopardize repayment of debt. Loss may not be imminent, but if weaknesses are not corrected, there is a good possibility of some loss.

● Doubtful – The possibility of loss is extremely high, but due to identifiable and important pending events (which may strengthen the loan), a loss classification is deferred until the situation is better defined.

● Loss – These loans are considered uncollectible and of such little value that to continue to carry the loan as an active asset is no longer warranted.

The Company had no loans held for sale as of March 31, 2016. The following tables present the loan portfolio by risk rating as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,081,780	$	92,891	$	75,461	$	1,055	$	2,251,187
Real estate construction loans		436,415		5,197		11,357		500		453,469
Commercial mortgage loans		5,131,844		187,237		117,324		9,170		5,445,575
Residential mortgage loans and equity lines		2,200,400		1,931		9,741		-		2,212,072
Installment and other loans		1,344		-		-		-		1,344
Total gross loans	$	9,851,783	$	287,256	$	213,883	$	10,725	$	10,363,647

	December 31, 2015
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,143,270	$	110,338	$	61,297	$	1,958	$	2,316,863
Real estate construction loans		413,765		5,776		21,502		500		441,543
Commercial mortgage loans		5,018,199		155,553		118,196		9,270		5,301,218
Residential mortgage loans and equity lines		2,091,434		399		9,502		-		2,101,335
Installment and other loans		2,493		-		-		-		2,493
Total gross loans	$	9,669,161	$	272,066	$	210,497	$	11,728	$	10,163,452
Loans held for sale	$	732	$	-	$	5,944	$	-	$	6,676

The allowance for loan losses and the reserve for off-balance sheet credit commitments are significant estimates that can and do change based on management’s process in analyzing the loan portfolio and on management’s assumptions about specific borrowers, underlying collateral, and applicable economic and environmental conditions, among other factors.

The following table presents the balance in the allowance for loan losses by portfolio segment and based on impairment method as of March 31, 2016, and as of December 31, 2015:

	Commercial Loans		Real Estate Construction Loans		Commercial Mortgage Loans		Residential Mortgage Loans and Equity Lines		Installment and Other Loans		Total
	(In thousands)
March 31, 2016
Loans individually evaluated for impairment
Allowance	$	225	$	-	$	6,593	$	372	$	-	$	7,190
Balance	$	11,686	$	11,857	$	94,145	$	17,127	$	-	$	134,815
Loans collectively evaluated for impairment
Allowance	$	56,156	$	12,744	$	43,858	$	14,597	$	7	$	127,362
Balance	$	2,239,501	$	441,612	$	5,351,430	$	2,194,945	$	1,344	$	10,228,832
Total allowance	$	56,381	$	12,744	$	50,451	$	14,969	$	7	$	134,552
Total balance	$	2,251,187	$	453,469	$	5,445,575	$	2,212,072	$	1,344	$	10,363,647
December 31, 2015
Loans individually evaluated for impairment
Allowance	$	530	$	-	$	6,792	$	427	$	-	$	7,749
Balance	$	13,568	$	22,002	$	81,776	$	16,464	$	-	$	133,810
Loans collectively evaluated for impairment
Allowance	$	55,669	$	22,170	$	42,648	$	10,718	$	9	$	131,214
Balance	$	2,303,295	$	419,541	$	5,219,442	$	2,084,871	$	2,493	$	10,029,642
Total allowance	$	56,199	$	22,170	$	49,440	$	11,145	$	9	$	138,963
Total balance	$	2,316,863	$	441,543	$	5,301,218	$	2,101,335	$	2,493	$	10,163,452

The following tables detail activity in the allowance for loan losses by portfolio segment for the three months ended March 31, 2016, and March 31, 2015. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.

	Commercial Loans			Real Estate Construction Loans			Commercial Mortgage Loans			Residential Mortgage Loans and Equity Lines			Installment and Other Loans			Total
	(In thousands)
2016 Beginning Balance	$	56,199		$	22,170		$	49,440		$	11,145		$	9		$	138,963
Provision/(credit) for possible credit losses		1,265			(16,702	)		978			3,961			(2	)		(10,500	)
Charge-offs		(2,070	)		-			(110	)		(149	)		-			(2,329	)
Recoveries		987			7,276			143			12						8,418
Net (charge-offs)/recoveries		(1,083	)		7,276			33			(137	)		-			6,089
March 31, 2016 Ending Balance	$	56,381		$	12,744		$	50,451		$	14,969		$	7		$	134,552
Reserve for impaired loans	$	225		$	-		$	6,593		$	372		$	-		$	7,190
Reserve for non-impaired loans	$	56,156		$	12,744		$	43,858		$	14,597		$	7		$	127,362
Reserve for off-balance sheet credit commitments	$	2,641		$	-		$	53		$	-		$	-		$	2,694
2015 Beginning Balance	$	47,501		$	27,652		$	74,673		$	11,578		$	16		$	161,420
Provision/(credit) for possible credit losses		793			(4,427	)		(1,697	)		328			3			(5,000	)
Charge-offs		(864	)		-			(3,452	)		(148	)		-			(4,464	)
Recoveries		2,275			45			1,794			19			-			4,133
Net (charge-offs)/recoveries		1,411			45			(1,658	)		(129	)		-			(331	)
March 31, 2015 Ending Balance	$	49,705		$	23,270		$	71,318		$	11,777		$	19		$	156,089
Reserve for impaired loans	$	3,911		$	-		$	6,635		$	498		$	-		$	11,044
Reserve for non-impaired loans	$	45,794		$	23,270		$	64,683		$	11,279		$	19		$	145,045
Reserve for off-balance sheet credit commitments	$	903		$	527		$	181		$	40		$	1		$	1,652

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Note 8 - Commitments and Contingencies

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

8. Commitments and Contingencies

The Company is involved in various litigation concerning transactions entered into in the normal course of business. Management, after consultation with legal counsel, does not believe that the resolution of such litigation will have a material effect upon its consolidated financial condition, results of operations, or liquidity taken as a whole. Although the Company establishes accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated, the Company does not have accruals for all legal proceedings where there is a risk of loss. In addition, amounts accrued may not represent the ultimate loss to the Company from the legal proceedings in question. Thus, ultimate losses may be higher or lower, and possibly significantly so, than the amounts accrued for legal loss contingencies.

In the normal course of business, the Company becomes a party to financial instruments with off-balance sheet risk to meet the financing needs of its customers. These financial instruments include commitments to extend credit in the form of loans, or through commercial or standby letters of credit and financial guarantees. These instruments represent varying degrees of exposure to risk in excess of the amounts included in the accompanying condensed consolidated balance sheets. The contractual or notional amount of these instruments indicates a level of activity associated with a particular class of financial instrument and is not a reflection of the level of expected losses, if any.

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Note 9 - Borrowed Funds

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

9. Borrowed Funds

Securities Sold Under Agreements to Repurchase. Securities sold under agreements to repurchase were $400 million with a weighted average rate of 3.89% as of March 31, 2016, compared to $400 million with a weighted average rate of 3.89% as of December 31, 2015. As of March 31, 2016, four floating-to-fixed rate agreements totaling $200 million with a weighted average rate of 5.0% and final maturity in January 2017 had initial floating rates for one year, with floating rates of the three-month LIBOR rate minus 340 basis points. Thereafter, the rates are fixed for the remainder of the term, with interest rates ranging from 4.89% to 5.07%. As of March 31, 2016, and December 31, 2015, four fixed rate non-callable securities sold under agreements to repurchase totaled $200 million with a weighted average rate of 2.78%. Final maturity for the four fixed rate non-callable securities sold under agreements to repurchase was $50.0 million in August 2016, $50.0 million in July 2017, $50.0 million in June 2018, and $50.0 million in July 2018.

These transactions are accounted for as collateralized financing transactions and recorded at the amounts at which the securities were sold. The Company may have to provide additional collateral for the repurchase agreements, as necessary. The underlying collateral pledged for the repurchase agreements consists of U.S. Treasury securities and mortgage-backed securities with a fair value of $429 million as of March 31, 2016, and $430 million as of December 31, 2015.

Borrowing from the FHLB. As of March 31, 2016, over-night borrowings from the FHLB were $100 million at a rate of 0.48% compared to $250 million at a rate of 0.27% as of December 31, 2015. As of March 31, 2016, the advances from the FHLB were $375 million at a rate of 0.46% compared to $25 million at a rate of 1.13% as of December 31, 2015. As of March 31, 2016, FHLB advances of $350 million will mature in April 2016 and $25 million will mature in March 2018.

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Note 10 - Income Taxes

3 Months Ended

Mar. 31, 2016

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

10. Income Taxes

Income tax expense totaled $22.7 million, or an effective tax rate of 32.9%, for the three months ended March 31, 2016, compared to an income tax expense of $21.4 million, or an effective tax rate of 37.3%, for the same period in 2015. The effective tax rate includes the impact of the utilization of low income housing tax credits and the utilization of alternative energy tax credits.

As of December 31, 2015, the Company had income tax refunds receivable of $28.9 million. These income tax receivables are included in other assets in the accompanying condensed consolidated balance sheets.

The Company’s tax returns are open for audit by the Internal Revenue Service back to 2012 and by the California Franchise Tax Board back to 2008. As the Company is presently under audit by a number of tax authorities, it is reasonably possible that unrecognized tax benefits could change significantly over the next twelve months. The Company does not expect that any such changes would have a material impact on its annual effective tax rate.

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Note 11 - Fair Value Measurements

3 Months Ended

Mar. 31, 2016

Disclosure Text Block [Abstract]

Fair Value, Measurement Inputs, Disclosure [Text Block]

11. Fair Value Measurements

The Company adopted ASC Topic 820 on January 1, 2008, and determined the fair values of our financial instruments based on the following:

● Level 1 - Quoted prices in active markets for identical assets or liabilities.

● Level 2 - Observable prices in active markets for similar assets or liabilities; prices for identical or similar assets or liabilities in markets that are not active; directly observable market inputs for substantially the full term of the asset and liability; market inputs that are not directly observable but are derived from or corroborated by observable market data.

● Level 3 – Unobservable inputs based on the Company’s own judgment about the assumptions that a market participant would use.

The Company uses the following methodologies to measure the fair value of its financial assets and liabilities on a recurring basis:

Securities Available for Sale. For certain actively traded agency preferred stock, mutual funds, and U.S. Treasury securities, the Company measures the fair value based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement. The Company also measures securities by using quoted market prices for similar securities or dealer quotes, a Level 2 measurement. This category generally includes U.S. Government agency securities, state and municipal securities, mortgage-backed securities (“MBS”), commercial MBS, collateralized mortgage obligations, asset-backed securities, corporate bonds and trust preferred securities.

Warrants. The Company measures the fair value of warrants based on unobservable inputs based on assumptions and management judgment, a Level 3 measurement.

Foreign Exchange Contracts. The Company measures the fair value of foreign exchange contracts based on dealer quotes, a Level 2 measurement.

Interest Rate Swaps. Fair value of interest rate swaps is derived from third party models with observable market data, a Level 2 measurement.

The valuation techniques for the assets and liabilities valued on a nonrecurring basis are as follows:

Impaired Loans. The Company does not record loans at fair value on a recurring basis. However, from time to time, nonrecurring fair value adjustments to collateral dependent impaired loans are recorded based on either the current appraised value of the collateral, a Level 2 measurement, or management’s judgment and estimation of value reported on older appraisals that are then adjusted based on recent market trends, a Level 3 measurement.

Goodwill. The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The two-step impairment testing process, if needed, begins by assigning net assets and goodwill to the two reporting units—Commercial Lending and Retail Banking.  The Company then completes “step one” of the impairment test by comparing the fair value of each reporting unit (as determined based on the discussion below) with the recorded book value (or “carrying amount”) of its net assets, with goodwill included in the computation of the carrying amount.  If the fair value of a reporting unit exceeds its carrying amount, goodwill of that reporting unit is not considered impaired, and “step two” of the impairment test is not necessary.  If the carrying amount of a reporting unit exceeds its fair value, step two of the impairment test is performed to determine the amount of impairment.  Step two of the impairment test compares the carrying amount of the reporting unit’s goodwill to the “implied fair value” of that goodwill.  The implied fair value of goodwill is computed by assuming that all assets and liabilities of the reporting unit would be adjusted to the current fair value, with the offset as an adjustment to goodwill.  This adjusted goodwill balance is the implied fair value used in step two.  An impairment charge is recognized for the amount by which the carrying amount of goodwill exceeds its implied fair value. In connection with the determination of fair value, certain data and information is utilized, including earnings forecasts at the reporting unit level for the next four years.  Other key assumptions include terminal values based on future growth rates and discount rates for valuing the cash flows, which have inputs for the risk-free rate, market risk premium, and adjustments to reflect inherent risk and required market returns. Because of the significance of unobservable inputs in the valuation of goodwill impairment, goodwill subject to nonrecurring fair value adjustments is classified as a Level 3 measurement.

Core Deposit Intangibles. Core deposit intangibles is initially recorded at fair value based on a valuation of the core deposits acquired and is amortized over its estimated useful life to its residual value in proportion to the economic benefits consumed. The Company assesses the recoverability of this intangible asset on a nonrecurring basis using the core deposits remaining at the assessment date and the fair value of cash flows expected to be generated from the core deposits, a Level 3 measurement.

Other Real Estate Owned. Real estate acquired in the settlement of loans is initially recorded at fair value based on the appraised value of the property on the date of transfer, less estimated costs to sell, a Level 2 measurement. From time to time, nonrecurring fair value adjustments are made to other real estate owned based on the current updated appraised value of the property, also a Level 2 measurement, or management’s judgment and estimation of value reported on older appraisals that are then adjusted based on recent market trends, a Level 3 measurement.

Investments in Venture Capital. The Company periodically reviews its investments in venture capital for other-than-temporary impairment on a nonrecurring basis. Investments in venture capital were written down to their fair value based on available financial reports from venture capital partnerships and management’s judgment and estimation, a Level 3 measurement.

Equity Investments. The Company records equity investments at fair value on a nonrecurring basis based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement.

The following tables present the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of March 31, 2016, and December 31, 2015:

March 31, 2016	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	224,804	$	-	$	-	$	224,804
U.S. government sponsored entities				100,010		-		100,010
Mortgage-backed securities		-		1,070,493		-		1,070,493
Collateralized mortgage obligations		-		34		-		34
Corporate debt securities		-		73,103		-		73,103
Mutual funds		5,915		-		-		5,915
Preferred stock of government sponsored entities		-		2,803		-		2,803
Other equity securities		-		7,962		-		7,962
Total securities available-for-sale		230,719		1,254,405		-		1,485,124
Warrants		-		-		94		94
Foreign exchange contracts		-		3,313		-		3,313
Total assets	$	230,719	$	1,257,718	$	94	$	1,488,531
Liabilities
Interest rate swaps	$	-	$	14,878	$	-	$	14,878
Foreign exchange contracts		-		913		-		913
Total liabilities	$	-	$	15,791	$	-	$	15,791

December 31, 2015	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	284,288	$	-	$	-	$	284,288
U.S. government sponsored entities		-		148,160		-	$	148,160
Mortgage-backed securities		-		1,062,269		-		1,062,269
Collateralized mortgage obligations		-		36		-		36
Corporate debt securities		-		73,855		-		73,855
Mutual funds		5,833		-		-		5,833
Preferred stock of government sponsored entities		-		3,216		-		3,216
Other equity securities		-		8,695		-		8,695
Total securities available-for-sale		290,121		1,296,231		-		1,586,352
Warrants		-		-		62		62
Foreign exchange contracts		-		3,339		-		3,339
Total assets	$	290,121	$	1,299,570	$	62	$	1,589,753
Liabilities
Option contracts	$	-	$	28	$	-	$	28
Interest rate swaps		-		6,496		-	$	6,496
Foreign exchange contracts		-		4,124		-		4,124
Total liabilities	$	-	$	10,648	$	-	$	10,648

The Company measured the fair value of its warrants on a recurring basis using significant unobservable inputs. The fair value of warrants was $94,000 as of March 31, 2016, compared to $62,000 as of December 31, 2015. The fair value adjustment of warrants was included in other operating income in the first quarter of 2016. The significant unobservable inputs in the Black-Scholes option pricing model for the fair value of warrants are their expected life ranging from 1 to 7 years, risk-free interest rate from 0.79% to 1.60%, and stock volatility from 13.06% to 18.21%.

For financial assets measured at fair value on a nonrecurring basis that were still reflected in the condensed consolidated balance sheets as of March 31, 2016, the following tables provide the level of valuation assumptions used to determine each adjustment, the carrying value of the related individual assets as of March 31, 2016, and December 31, 2015, and the total losses for the periods indicated:

	March 31, 2016								Total Losses
	Fair Value Measurements Using						Total at		Three Months Ended
	Level 1		Level 2		Level 3		Fair Value		March 31, 2016		March 31, 2015
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	2,493	$	2,493	$	-	$	-
Commercial mortgage loans		-		-		19,565		19,565		-		56
Residential mortgage loans and equity lines		-		-		11,971		11,971		-		148
Total impaired loans		-		-		34,029		34,029		-		204
Other real estate owned (1)		-		11,906		4,206		16,112		128		181
Investments in venture capital and private company stock		-		-		4,831		4,831		110		224
Total assets	$	-	$	11,906	$	43,066	$	54,972	$	238	$	609

(1) Other real estate owned balance of $27.3 million in the condensed consolidated balance sheet is net of estimated disposal costs.

	December 31, 2015								Total Losses
	Fair Value Measurements Using						Total at		Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2015		December 31, 2014
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	6,317	$	6,317	$	806	$	17
Commercial mortgage loans		-		-		20,359		20,359		598		3,914
Residential mortgage loans and equity lines		-		-		13,009		13,009		146		27
Total impaired loans		-		-		39,685		39,685		1,550		3,958
Other real estate owned (1)		-		10,047		4,235		14,282		404		202
Investments in venture capital and private company stock		-		-		4,922		4,922		553		436
Total assets	$	-	$	10,047	$	48,842	$	58,889	$	2,507	$	4,596

(1) Other real estate owned balance of $24.7 million in the consolidated balance sheet is net of estimated disposal costs.

The significant unobservable (Level 3) inputs used in the fair value measurement of collateral for collateral-dependent impaired loans was primarily based on the appraised value of collateral adjusted by estimated sales cost and commissions. The Company generally obtains new appraisal reports every nine months. As the Company’s primary objective in the event of default would be to monetize the collateral to settle the outstanding balance of the loan, less marketable collateral would receive a larger discount. During the reported periods, collateral discounts ranged from 55% in the case of accounts receivable collateral to 65% in the case of inventory collateral.

The significant unobservable inputs used in the fair value measurement of loans held for sale was primarily based on the quoted price or sale price adjusted by estimated sales cost and commissions. The significant unobservable inputs used in the fair value measurement of other real estate owned (“OREO”) was primarily based on the appraised value of OREO adjusted by estimated sales cost and commissions.

The Company applies estimated sales cost and commissions ranging from 3% to 6% to collateral value of impaired loans, quoted price, or loan sale price of loans held for sale, and appraised value of OREO.

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Note 12 - Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

12. Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each class of financial instruments.

Cash and Cash Equivalents. For cash and cash equivalents, the carrying amount was assumed to be a reasonable estimate of fair value, a Level 1 measurement.

Short-term Investments. For short-term investments, the carrying amount was assumed to be a reasonable estimate of fair value, a Level 1 measurement.

Securities Purchased under Agreements to Resell. The fair value of securities purchased under agreements to resell is based on dealer quotes, a Level 2 measurement.

Securities. For securities, including securities held-to-maturity, available-for-sale, and for trading, fair values were based on quoted market prices at the reporting date. If a quoted market price was not available, fair value was estimated using quoted market prices for similar securities or dealer quotes. For certain actively traded agency preferred stock and U.S. Treasury securities, the Company measures the fair value based on quoted market prices in active exchange markets at the reporting date, a Level 1 measurement. The Company also measures securities by using quoted market prices for similar securities or dealer quotes, a Level 2 measurement. This category generally includes U.S. Government agency securities, state and municipal securities, mortgage-backed securities (“MBS”), commercial MBS, collateralized mortgage obligations, asset-backed securities, and corporate bonds.

Loans Held for Sale. The Company records loans held for sale at fair value based on quoted prices from third party sources, or appraisal reports adjusted by sales commission assumptions.

Loans. Fair values were estimated for portfolios of loans with similar financial characteristics. Each loan category was further segmented into fixed and adjustable rate interest terms and by performing and non-performing categories.

The fair value of performing loans was calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan, a Level 3 measurement.

The fair value of impaired loans was calculated based on the net realizable fair value of the collateral or the observable market price of the most recent sale or quoted price from loans held for sale. The Company does not record loans at fair value on a recurring basis. Nonrecurring fair value adjustments to collateral dependent impaired loans are recorded based on the current appraised value or adjusted appraised value of the collateral, a Level 2 or Level 3 measurement.

Deposit Liabilities. The fair value of demand deposits, savings accounts, and certain money market deposits was assumed to be the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit was estimated using the rates currently offered for deposits with similar remaining maturities, a Level 3 measurement.

      Securities Sold under Agreements to Repurchase. The fair value of securities sold under agreements to repurchase is based on dealer quotes, a Level 2 measurement.

      Advances from Federal Home Loan Bank (“FHLB”). The fair value of the advances is based on quotes from the FHLB to settle the advances, a Level 2 measurement.

Other Borrowings. This category includes borrowings from other financial institutions.  The fair value of other borrowings is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risk, a Level 3 measurement. 

Long-term Debt. The fair value of long-term debt is estimated based on the quoted market prices or dealer quotes, a Level 2 measurement.

Foreign Exchange Contracts. The Company measures the fair value of foreign exchange contracts based on dealer quotes, a Level 2 measurement.

Interest Rate Swaps. Fair value of interest rate swaps is derived from third party models with observable market data, a Level 2 measurement.

Off-Balance-Sheet Financial Instruments. The fair value of commitments to extend credit, standby letters of credit, and financial guarantees written were estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. The fair value of guarantees and letters of credit was based on fees currently charged for similar agreements or on the estimated cost to terminate them or otherwise settle the obligations with the counterparties at the reporting date. The fair value of off-balance-sheet financial instruments was based on the assumptions that a market participant would use, a Level 3 measurement.

Fair value was estimated in accordance with ASC Topic 825. Fair value estimates were made at specific points in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Bank’s financial instruments, fair value estimates were based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates were subjective in nature and involved uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

The following table presents the carrying and notional amounts and estimated fair value of financial instruments as of March 31, 2016, and as of December 31, 2015:

	March 31, 2016				December 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	180,130	$	180,130
Short-term investments		432,384		432,384		536,880		536,880
Securities available-for-sale		1,485,124		1,485,124		1,586,352		1,586,352
Loans held for sale		-		-		6,676		6,676
Loans, net		10,221,510		10,142,747		10,016,227		9,938,810
Investment in Federal Home Loan Bank stock		17,250		17,250		17,250		17,250
Warrants		94		94		62		62

	Notional Amount		Fair Value		Notional Amount		Fair Value
Foreign exchange contracts	$	138,201	$	3,314	$	100,602	$	3,339

	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Liabilities
Deposits	$	10,324,116	$	10,331,030	$	10,509,087	$	10,509,879
Securities sold under agreements to repurchase		400,000		413,195		400,000		413,417
Advances from Federal Home Loan Bank		475,000		475,128		275,000		274,488
Other borrowings		17,792		15,478		18,593		16,684
Long-term debt		119,136		58,951		119,136		58,420

	Notional Amount		Fair Value		Notional Amount		Fair Value
Option contracts	$	-	$	-	$	9,396	$	28
Foreign exchange contracts		73,006		913		115,418		4,124
Interest rate swaps		476,590		14,878		459,416		6,496

	Notional Amount		Fair Value			Notional Amount		Fair Value
Off-Balance Sheet Financial Instruments
Commitments to extend credit	$	2,098,360	$	(5,722	)	$	1,971,848	$	(5,570	)
Standby letters of credit		49,334		(199	)		49,081		(194	)
Other letters of credit		30,883		(18	)		38,131		(22	)
Bill of lading guarantees		52		-			454		(1	)

The following tables present the level in the fair value hierarchy for the estimated fair values of financial instruments as of March 31, 2016, and December 31, 2015.

	March 31, 2016
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	-	$	-
Short-term investments		432,384		432,384		-		-
Securities available-for-sale		1,485,124		230,719		1,254,405		-
Loans, net		10,142,747		-		-		10,142,747
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		94		-		-		94
Financial Liabilities
Deposits		10,331,030		-		-		10,331,030
Securities sold under agreements to repurchase		413,195		-		413,195		-
Advances from Federal Home Loan Bank		475,128		-		475,128		-
Other borrowings		15,478		-		-		15,478
Long-term debt		58,951		-		58,951		-

	December 31, 2015
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	180,130	$	180,130	$	-	$	-
Short-term investments		536,880		536,880		-		-
Securities available-for-sale		1,586,352		290,121		1,296,231		-
Loans held-for-sale		6,676		-		-		6,676
Loans, net		9,938,810		-		-		9,938,810
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		62		-		-		62
Financial Liabilities
Deposits		10,509,879		-		-		10,509,879
Securities sold under agreements to repurchase		413,417		-		413,417		-
Advances from Federal Home Loan Bank		274,488		-		-		274,488
Other borrowings		16,684		-		-		16,684
Long-term debt		58,420		-		58,420		-

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Note 13 - Goodwill and Goodwill Impairment

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

13. Goodwill and Goodwill Impairment

The Company’s policy is to assess goodwill for impairment at the reporting unit level on an annual basis or between annual assessments if a triggering event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.  Impairment is the condition that exists when the carrying amount of goodwill exceeds its implied fair value.  

The Company first assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC Topic 350. The two-step impairment testing process, if needed, begins by assigning net assets and goodwill to our two reporting units—Commercial Lending and Retail Banking.  The Company then completes “step one” of the impairment test by comparing the fair value of each reporting unit (as determined based on the discussion below) with the recorded book value (or “carrying amount”) of its net assets, with goodwill included in the computation of the carrying amount.  If the fair value of a reporting unit exceeds its carrying amount, goodwill of that reporting unit is not considered impaired, and “step two” of the impairment test is not necessary.  If the carrying amount of a reporting unit exceeds its fair value, step two of the impairment test is performed to determine the amount of impairment.  Step two of the impairment test compares the carrying amount of the reporting unit’s goodwill to the “implied fair value” of that goodwill.  The implied fair value of goodwill is computed by assuming that all assets and liabilities of the reporting unit would be adjusted to the current fair value, with the offset as an adjustment to goodwill.  This adjusted goodwill balance is the implied fair value used in step two.  An impairment charge is recognized for the amount by which the carrying amount of goodwill exceeds its implied fair value.

As of March 31, 2016, the Company’s market capitalization was above book value and there was no triggering event that required the Company to assess goodwill for impairment as of an interim date.

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Note 14 - Financial Derivatives

3 Months Ended

Mar. 31, 2016

Derivative Instrument Detail [Abstract]

Schedule of Derivative Instruments [Table Text Block]

14. Financial Derivatives

It is the policy of the Company not to speculate on the future direction of interest rates. However, the Company enters into financial derivatives in order to seek mitigation of exposure to interest rate risks related to our interest-earning assets and interest-bearing liabilities. We believe that these transactions, when properly structured and managed, may provide a hedge against inherent interest rate risk in the Company’s assets or liabilities and against risk in specific transactions. In such instances, the Company may enter into interest rate swap contracts or other types of financial derivatives. Prior to considering any hedging activities, we seek to analyze the costs and benefits of the hedge in comparison to other viable alternative strategies. All hedges must be approved by the Bank’s Investment Committee.

The Company follows ASC Topic 815 that establishes accounting and reporting standards for financial derivatives, including certain financial derivatives embedded in other contracts, and hedging activities. It requires the recognition of all financial derivatives as assets or liabilities in the Company’s consolidated balance sheet and measurement of those financial derivatives at fair value. The accounting treatment of changes in fair value is dependent upon whether or not a financial derivative is designated as a hedge and, if so, the type of hedge. Fair value is determined using third-party models with observable market data. For derivatives designated as cash flow hedges, changes in fair value are recognized in other comprehensive income and are reclassified to earnings when the hedged transaction is reflected in earnings. For derivatives designated as fair value hedges, changes in the fair value of the derivatives are reflected in current earnings, together with changes in the fair value of the related hedged item if there is a highly effective correlation between changes in the fair value of the interest rate swaps and changes in the fair value of the underlying asset or liability that is intended to be hedged. If there is not a highly effective correlation between changes in the fair value of the interest rate swap and changes in the fair value of the underlying asset or liability that is intended to be hedged, then only the changes in the fair value of the interest rate swaps are reflected in the Company’s consolidated financial statements.

In May 2014, Bancorp entered into interest rate swap contracts in the notional amount of $119.1 million for a period of ten years. The objective of these interest rate swap contracts, which were designated as hedging instruments in cash flow hedges, was to hedge on Bancorp’s $119.1 million of Junior Subordinated Debentures that had been issued to five trusts, with the quarterly interest payments throughout the ten-year period beginning in June 2014 and ending in June 2024, from the risk of variability of these payments resulting from changes in the three-month LIBOR interest rate. Bancorp pays a weighted average fixed interest rate of 2.61% and receives a variable interest rate of the three-month LIBOR at a weighted average rate of 0.63%. As of March 31, 2016, the notional amount of cash flow interest rate swaps was $119.1 million and their unrealized loss of $6.1 million, net of taxes, was included in other comprehensive income. The amount of periodic net settlement of interest rate swaps included in interest expense was $620,000 for the three months ended March 31, 2016 compared to $703,000 for the same quarter a year ago.

As of March 31, 2016, the Bank entered into interest rate swap contracts with various terms from four to eight years. These interest rate swap contracts are matched to individual fixed-rate commercial real estate loans in the Bank’s loan portfolio. These contracts have been designated as hedging instruments to hedge the risk of changes in the fair value of the underlying commercial real estate loan due to changes in interest rates. The swap contracts are structured so that the notional amounts reduce over time to match the contractual amortization of the underlying loan and allow prepayments with the same pre-payment penalty amounts as the related loan. The Bank pays a weighted average fixed rate of 4.68% and receives a variable rate at the one month LIBOR rate plus a weighted average spread of 321 basis points, or at a weighted average rate of 3.64%. As of March 31, 2016, the notional amount of fair value interest rate swaps was $357.5 million and their unrealized loss of $4.3 million was included in other non-interest income. The amount of periodic net settlement of interest rate swaps reducing interest income was $934,000 for the three months ended March 31, 2016, compared to $683,000 for the same quarter a year ago. As of March 31, 2016, the ineffective portion of these interest rate swaps was not significant.

Interest rate swap contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have a strong credit profile and be approved by the Company’s Board of Directors. The Company’s credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps by each counterparty. Credit exposure may be reduced by the amount of collateral pledged by the counterparty. Bancorp’s interest rate swaps have been assigned by the counterparties to a derivatives clearing organization and daily margin is indirectly maintained with the derivatives clearing organization. Cash posted as collateral by Bancorp related to derivative contracts totaled $13.3 million as of March 31, 2016.

The Company enters into foreign exchange forward contracts with various counterparties to mitigate the risk of fluctuations in foreign currency exchange rates for foreign exchange certificates of deposit or foreign exchange contracts entered into with our clients. These contracts are not designated as hedging instruments and are recorded at fair value in our condensed consolidated balance sheets. Changes in the fair value of these contracts as well as the related foreign exchange certificates of deposit and foreign exchange contracts are recognized immediately in net income as a component of non-interest income. Period end gross positive fair values are recorded in other assets and gross negative fair values are recorded in other liabilities. As of March 31, 2016, there were no option contracts outstanding. As of March 31, 2016, spot, forward, and swap contracts with a total notional amount of $138.2 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $73.0 million had a negative fair value of $913,000 as of March 31, 2016. As of December 31, 2015, the notional amount of option contracts totaled $9.4 million with a net negative fair value of $28,000. As of December 31, 2015, spot, forward, and swap contracts with a total notional amount of $100.6 million had a positive fair value of $3.3 million. Spot, forward, and swap contracts with a total notional amount of $115.4 million had a negative fair value of $4.1 million as of December 31, 2015.

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Note 15 - Balance Sheet Offsetting

3 Months Ended

Mar. 31, 2016

Disclosure Text Block Supplement [Abstract]

Supplemental Balance Sheet Disclosures [Text Block]

15. Balance Sheet Offsetting

Certain financial instruments, including resell and repurchase agreements, securities lending arrangements and derivatives, may be eligible for offset in the condensed consolidated balance sheets and/or subject to master netting arrangements or similar agreements. The Company’s securities sold with agreements to repurchase and derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, the Company does not generally offset such financial instruments for financial reporting purposes.

Financial instruments that are eligible for offset in the condensed consolidated balance sheets, as of March 31, 2016, and December 31, 2015, are presented in the following table:

							Gross Amounts Not Offset in the Balance Sheet
	Gross Amounts Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts Presented in the Balance Sheet		Financial Instruments		Collateral Posted			Net Amount
	(In thousands)
March 31, 2016
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	14,878	$	-	$	14,878	$	-	$	(14,878	)	$	-
December 31, 2015
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	6,496	$	-	$	6,496	$	-	$	(6,496	)	$	-

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Note 16 - Stockholders' Equity

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

16. Stockholders’ Equity

Total equity was $1.73 billion as of March 31, 2016, a decrease of $13.1 million, from $1.75 billion as of December 31, 2015, primarily due to purchases of treasury stock of $54.4 million and common stock cash dividends of $14.2 million offset by increases in net income of $46.2 million and other comprehensive income of $7.4 million.

Activity in accumulated other comprehensive income, net of tax, and reclassification out of accumulated other comprehensive income for the three months ended March 31, 2016, and March 31, 2015, was as follows:

	Three months ended March 31, 2016									Three months ended March 31, 2015
	Pre-tax			Tax expense/ (benefit)			Net-of-tax			Pre-tax			Tax expense/ (benefit)			Net-of-tax
	(In thousands)
Beginning balance, loss, net of tax
Securities available-for-sale							$	(5,431	)							$	(3,172	)
Cash flow hedge derivatives								(2,995	)								(2,397	)
Total							$	(8,426	)							$	(5,569	)
Net unrealized gains/(losses) arising during the period
Securities available-for-sale	$	17,863		$	7,509		$	10,354		$	11,213		$	4,714		$	6,499
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total		12,480			5,246			7,234			8,473			3,562		$	4,911
Reclassification adjustment for net losses in net income
Securities available-for-sale		206			87			119			21			9			12
Cash flow hedge derivatives		-			-			-			-			-			-
Total		206			87			119			21			9			12
Total other comprehensive income/(loss)
Securities available-for-sale		18,069			7,596			10,473			11,234			4,723			6,511
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total	$	12,686		$	5,333		$	7,353		$	8,494		$	3,571		$	4,923
Ending balance, gain/(loss), net of tax
Securities available-for-sale							$	5,042								$	3,339
Cash flow hedge derivatives								(6,115	)								(3,985	)
Total							$	(1,073	)							$	(646	)

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Note 17 - Stock Repurchase Program

3 Months Ended

Mar. 31, 2016

Disclosure Text Block Supplement [Abstract]

Treasury Stock [Text Block]

17. Stock Repurchase Program

In February 2016, the Company completed the repurchase of the remaining 633,250 shares of its common stock under the August 2015 repurchase program, for $17.0 million, or a $26.82 average price per share.

On February 1, 2016, the Board of Directors of the Company adopted a new stock repurchase program to repurchase up to $45.0 million of the Company’s common stock. In February 2016, the Company repurchased 1,380,578 shares of its common stock for $37.5 million, or a $27.13 average price per share under the February 2016 repurchase program. As of March 31, 2016, there was $7.5 million of the Company’s common stock remaining that could be purchased in the future under the February 2016 repurchase program.

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Note 4 - Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended March 31,
(Dollars in thousands, except share and per share data)	2016		2015
Net income	$	46,163	$	35,980
Weighted-average shares:
Basic weighted-average number of common shares outstanding		79,734,519		79,835,628
Dilutive effect of weighted-average outstanding common share equivalents
Warrants		452,368		344,919
Options		83,018		108,457
Restricted stock units		123,944		20,379
Diluted weighted-average number of common shares outstanding		80,393,849		80,309,383
Average stock options and warrants with anti-dilutive effect		359,544		1,670,231
Earnings per common share:
Basic	$	0.58	$	0.45
Diluted	$	0.57	$	0.45

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Note 5 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

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

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares			Weighted-average Exercise Price		Weighted-average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Balance, December 31, 2015		1,031,170		$	31.27		0.9	$	3,268
Exercised		(2,110	)		23.37
Forfeited		(608,670	)		36.46
Balance, March 31, 2016		420,390		$	23.80		1.8	$	2,026
Exercisable, March 31, 2016		420,390		$	23.80		1.8	$	2,026

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Units
Balance at December 31, 2015		542,375
Vested		(4,812	)
Balance at March 31, 2016		537,563

Schedule of Tax Benefit (Short-fall) from Share-based Payment Arrangements [Table Text Block]

	Three months ended March 31,
(Dollars in thousands)	2016			2015
Tax benefit/(short-fall) of tax deductions in excess of grant-date fair value	$	(3,298	)	$	(4,395	)
Benefit of tax deductions on grant-date fair value		3,302			4,442
Total benefit of tax deductions	$	4		$	47

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Note 6 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,750	$	61	$	7	$	224,804
U.S. government sponsored entities		100,000		10		-		100,010
Mortgage-backed securities		1,063,944		6,553		4		1,070,493
Collateralized mortgage obligations		60		-		26		34
Corporate debt securities		74,957		413		2,267		73,103
Mutual funds		6,000		-		85		5,915
Preferred stock of government sponsored entities		2,811		478		486		2,803
Other equity securities		3,902		4,060		-		7,962
Total	$	1,476,424	$	11,575	$	2,875	$	1,485,124

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(In thousands)
Securities Available-for-Sale
U.S. treasury securities	$	284,678	$	5	$	395	$	284,288
U.S. government sponsored entities		150,000		-		1,840		148,160
Mortgage-backed securities		1,073,108		560		11,399		1,062,269
Collateralized mortgage obligations		63		-		27		36
Corporate debt securities		74,955		425		1,525		73,855
Mutual funds		6,000		-		167		5,833
Preferred stock of government sponsored entities		2,811		633		228		3,216
Other equity securities		4,108		4,929		342		8,695
Total	$	1,595,723	$	6,552	$	15,923	$	1,586,352

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available-For-Sale
	Amortized cost		Fair value
	(In thousands)
Due in one year or less	$	154,963	$	154,978
Due after one year through five years		104,879		105,470
Due after five years through ten years		145,501		143,358
Due after ten years (1)		1,071,081		1,081,318
Total	$	1,476,424	$	1,485,124

Schedule of Unrealized Loss on Investments [Table Text Block]

	March 31, 2016
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	29,965	$	7	$	-	$	-	$	29,965	$	7
Mortgage-backed securities		389		3		46		1		435		4
Collateralized mortgage obligations		-		-		34		26		34		26
Corporate debt securities		9,950		50		42,783		2,217		52,733		2,267
Mutual funds		-		-		5,915		85		5,915		85
Preferred stock of government sponsored entities		2,230		486		-		-		2,230		486
Total	$	42,534	$	546	$	48,778	$	2,329	$	91,312	$	2,875

	December 31, 2015
	Temporarily impaired securities
	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Securities Available-for-Sale
U.S. treasury securities	$	224,289	$	395	$	-	$	-	$	224,289	$	395
U.S. government sponsored entities		148,160		1,840		-		-		148,160		1,840
Mortgage-backed securities		1,025,342		11,398		6		1		1,025,348		11,399
Collateralized mortgage obligations		-		-		36		27		36		27
Corporate debt securities		9,950		50		43,525		1,475		53,475		1,525
Mutual funds		-		-		5,833		167		5,833		167
Preferred stock of government sponsored entities		2,488		228		-		-		2,488		228
Other equity securities		158		342		-		-		158		342
Total	$	1,410,387	$	14,253	$	49,400	$	1,670	$	1,459,787	$	15,923

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Note 7 - Loans (Tables)

3 Months Ended

Mar. 31, 2016

Note 7 - Loans (Tables) [Line Items]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	March 31, 2016			December 31, 2015
	(In thousands)
Type of Loans:
Commercial loans	$	2,251,187		$	2,316,863
Residential mortgage loans		2,043,789			1,932,355
Commercial mortgage loans		5,445,575			5,301,218
Real estate construction loans		453,469			441,543
Equity lines		168,283			168,980
Installment and other loans		1,344			2,493
Gross loans	$	10,363,647		$	10,163,452
Less:
Allowance for loan losses		(134,552	)		(138,963	)
Unamortized deferred loan fees		(7,585	)		(8,262	)
Total loans, net	$	10,221,510		$	10,016,227
Loans held for sale	$	-		$	6,676

Impaired Financing Receivables [Table Text Block]

	Impaired Loans
	Average Recorded Investment				Interest Income Recognized
	Three months ended March 31,				Three months ended March 31,
	2016		2015		2016		2015
Commercial loans	$	12,670	$	25,426	$	120	$	229
Real estate construction loans		20,292		22,990		65		65
Commercial mortgage loans		87,452		110,293		890		917
Residential mortgage loans and equity lines		16,991		17,280		132		124
Total impaired loans	$	137,405	$	175,989	$	1,207	$	1,335

Schedule of Impaired Loans and Related Allowance and Charge-off [Table Text Block]

	Impaired Loans
	March 31, 2016						December 31, 2015
	Unpaid Principal Balance		Recorded Investment		Allowance		Unpaid Principal Balance		Recorded Investment		Allowance
	(In thousands)
With no allocated allowance
Commercial loans	$	10,912	$	8,968	$	-	$	15,493	$	6,721	$	-
Real estate construction loans		33,009		11,857		-		51,290		22,002		-
Commercial mortgage loans		74,480		67,988		-		59,954		54,625		-
Residential mortgage loans and equity lines		4,929		4,784		-		3,233		3,026		-
Subtotal	$	123,330	$	93,597	$	-	$	129,970	$	86,374	$	-
With allocated allowance
Commercial loans	$	4,188	$	2,718	$	225	$	7,757	$	6,847	$	530
Commercial mortgage loans		27,369		26,157		6,593		28,258		27,152		6,792
Residential mortgage loans and equity lines		13,334		12,343		372		14,383		13,437		427
Subtotal	$	44,891	$	41,218	$	7,190	$	50,398	$	47,436	$	7,749
Total impaired loans	$	168,221	$	134,815	$	7,190	$	180,368	$	133,810	$	7,749

Past Due Financing Receivables [Table Text Block]

	March 31, 2016
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	35,329	$	7,920	$	-	$	2,645	$	45,894	$	2,205,293	$	2,251,187
Real estate construction loans		1,529		-		-		6,179		7,708		445,761		453,469
Commercial mortgage loans		17,136		1,144		-		28,537		46,817		5,398,758		5,445,575
Residential mortgage loans and equity lines		6,087		-		-		7,282		13,369		2,198,703		2,212,072
Installment and other loans		-		-		-		-		-		1,344		1,344
Total loans	$	60,081	$	9,064	$	-	$	44,643	$	113,788	$	10,249,859	$	10,363,647

	December 31, 2015
	30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Non-accrual Loans		Total Past Due		Loans Not Past Due		Total
Type of Loans:	(In thousands)
Commercial loans	$	8,367	$	221	$	-	$	3,545	$	12,133	$	2,304,730	$	2,316,863
Real estate construction loans		7,285		-		-		16,306		23,591		417,952		441,543
Commercial mortgage loans		2,243		2,223		-		25,231		29,697		5,271,521		5,301,218
Residential mortgage loans and equity lines		4,959		1,038		-		7,048		13,045		2,088,290		2,101,335
Installment and other loans		-		-		-		-				2,493		2,493
Total loans	$	22,854	$	3,482	$	-	$	52,130	$	78,466	$	10,084,986	$	10,163,452

Schedule of Troubled Debt Restructurings [Table Text Block]

	Three months ended March 31, 2015								March 31, 2015
	No. of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Charge-offs		Specific Reserve
	(Dollars in thousands)
Commercial loans		1	$	850	$	850	$	-	$	-
Commercial mortgage loans		3		8,613		8,613		-		-
Residential mortgage loans and equity lines		4		1,522		1,374		148		46
Total		8	$	10,985	$	10,837	$	148	$	46

Troubled Debt Restructurings on Financing Receivables [Table Text Block]

	March 31, 2016
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	7,446	$	-	$	1,595	$	9,041
Real estate construction loans		-		-		5,679		5,679
Commercial mortgage loans		26,393		6,025		33,189		65,607
Residential mortgage loans		5,154		996		3,695		9,845
Total accruing TDRs	$	38,993	$	7,021	$	44,158	$	90,172

	December 31, 2015
Accruing TDRs	Payment Deferral		Rate Reduction		Rate Reduction and Payment Deferral		Total
Commercial loans	$	8,298	$	-	$	1,726	$	10,024
Real estate construction loans		-		-		5,696		5,696
Commercial mortgage loans		16,701		6,045		33,800		56,546
Residential mortgage loans		5,201		999		3,214		9,414
Total accruing TDRs	$	30,200	$	7,044	$	44,436	$	81,680

Non Accrual Troubled Debt Restructurings [Table Text Block]

	March 31, 2016
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,001	$	90	$	1,091
Commercial mortgage loans		1,532		20,028		21,560
Residential mortgage loans		381		177		558
Total non-accrual TDRs	$	2,914	$	20,295	$	23,209

	December 31, 2015
Non-accrual TDRs	Payment Deferral		Rate Reduction and Payment Deferral		Total
	(In thousands)
Commercial loans	$	1,033	$	90	$	1,123
Real estate construction loans		9,981		5,825		15,806
Commercial mortgage loans		1,544		20,362		21,906
Residential mortgage loans		388		700		1,088
Total non-accrual TDRs	$	12,946	$	26,977	$	39,923

Activity Within the Troubled Debt Resturings [Table Text Block]

	Three months ended March 31,
Accruing TDRs	2016			2015
	(In thousands)
Beginning balance	$	81,680		$	104,356
New restructurings		-			10,628
Restructured loans restored to accrual status		10,303			-
Charge-offs		-			(148	)
Payments		(1,811	)		(4,254	)
Restructured loans placed on non-accrual status		-			(10,189	)
Ending balance	$	90,172		$	100,393

	Three months ended March 31,
Non-accrual TDRs	2016			2015
	(In thousands)
Beginning balance	$	39,923		$	41,618
New restructurings		-			209
Restructured loans placed on non-accrual status		-			10,189
Charge-offs		-			(2,754	)
Payments		(6,411	)		(4,721	)
Restructured loans restored to accrual status		(10,303	)		-
Ending balance	$	23,209		$	44,541

Financing Receivable Credit Quality Indicators [Table Text Block]

	March 31, 2016
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,081,780	$	92,891	$	75,461	$	1,055	$	2,251,187
Real estate construction loans		436,415		5,197		11,357		500		453,469
Commercial mortgage loans		5,131,844		187,237		117,324		9,170		5,445,575
Residential mortgage loans and equity lines		2,200,400		1,931		9,741		-		2,212,072
Installment and other loans		1,344		-		-		-		1,344
Total gross loans	$	9,851,783	$	287,256	$	213,883	$	10,725	$	10,363,647

	December 31, 2015
	Pass/Watch		Special Mention		Substandard		Doubtful		Total
		(In thousands)
Commercial loans	$	2,143,270	$	110,338	$	61,297	$	1,958	$	2,316,863
Real estate construction loans		413,765		5,776		21,502		500		441,543
Commercial mortgage loans		5,018,199		155,553		118,196		9,270		5,301,218
Residential mortgage loans and equity lines		2,091,434		399		9,502		-		2,101,335
Installment and other loans		2,493		-		-		-		2,493
Total gross loans	$	9,669,161	$	272,066	$	210,497	$	11,728	$	10,163,452
Loans held for sale	$	732	$	-	$	5,944	$	-	$	6,676

Allowance for Credit Losses on Financing Receivables [Table Text Block]

	Commercial Loans			Real Estate Construction Loans			Commercial Mortgage Loans			Residential Mortgage Loans and Equity Lines			Installment and Other Loans			Total
	(In thousands)
2016 Beginning Balance	$	56,199		$	22,170		$	49,440		$	11,145		$	9		$	138,963
Provision/(credit) for possible credit losses		1,265			(16,702	)		978			3,961			(2	)		(10,500	)
Charge-offs		(2,070	)		-			(110	)		(149	)		-			(2,329	)
Recoveries		987			7,276			143			12						8,418
Net (charge-offs)/recoveries		(1,083	)		7,276			33			(137	)		-			6,089
March 31, 2016 Ending Balance	$	56,381		$	12,744		$	50,451		$	14,969		$	7		$	134,552
Reserve for impaired loans	$	225		$	-		$	6,593		$	372		$	-		$	7,190
Reserve for non-impaired loans	$	56,156		$	12,744		$	43,858		$	14,597		$	7		$	127,362
Reserve for off-balance sheet credit commitments	$	2,641		$	-		$	53		$	-		$	-		$	2,694
2015 Beginning Balance	$	47,501		$	27,652		$	74,673		$	11,578		$	16		$	161,420
Provision/(credit) for possible credit losses		793			(4,427	)		(1,697	)		328			3			(5,000	)
Charge-offs		(864	)		-			(3,452	)		(148	)		-			(4,464	)
Recoveries		2,275			45			1,794			19			-			4,133
Net (charge-offs)/recoveries		1,411			45			(1,658	)		(129	)		-			(331	)
March 31, 2015 Ending Balance	$	49,705		$	23,270		$	71,318		$	11,777		$	19		$	156,089
Reserve for impaired loans	$	3,911		$	-		$	6,635		$	498		$	-		$	11,044
Reserve for non-impaired loans	$	45,794		$	23,270		$	64,683		$	11,279		$	19		$	145,045
Reserve for off-balance sheet credit commitments	$	903		$	527		$	181		$	40		$	1		$	1,652

Impairment Method [Member]

Note 7 - Loans (Tables) [Line Items]

Impaired Financing Receivables [Table Text Block]

	Commercial Loans		Real Estate Construction Loans		Commercial Mortgage Loans		Residential Mortgage Loans and Equity Lines		Installment and Other Loans		Total
	(In thousands)
March 31, 2016
Loans individually evaluated for impairment
Allowance	$	225	$	-	$	6,593	$	372	$	-	$	7,190
Balance	$	11,686	$	11,857	$	94,145	$	17,127	$	-	$	134,815
Loans collectively evaluated for impairment
Allowance	$	56,156	$	12,744	$	43,858	$	14,597	$	7	$	127,362
Balance	$	2,239,501	$	441,612	$	5,351,430	$	2,194,945	$	1,344	$	10,228,832
Total allowance	$	56,381	$	12,744	$	50,451	$	14,969	$	7	$	134,552
Total balance	$	2,251,187	$	453,469	$	5,445,575	$	2,212,072	$	1,344	$	10,363,647
December 31, 2015
Loans individually evaluated for impairment
Allowance	$	530	$	-	$	6,792	$	427	$	-	$	7,749
Balance	$	13,568	$	22,002	$	81,776	$	16,464	$	-	$	133,810
Loans collectively evaluated for impairment
Allowance	$	55,669	$	22,170	$	42,648	$	10,718	$	9	$	131,214
Balance	$	2,303,295	$	419,541	$	5,219,442	$	2,084,871	$	2,493	$	10,029,642
Total allowance	$	56,199	$	22,170	$	49,440	$	11,145	$	9	$	138,963
Total balance	$	2,316,863	$	441,543	$	5,301,218	$	2,101,335	$	2,493	$	10,163,452

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Note 11 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure Text Block [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

March 31, 2016	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	224,804	$	-	$	-	$	224,804
U.S. government sponsored entities				100,010		-		100,010
Mortgage-backed securities		-		1,070,493		-		1,070,493
Collateralized mortgage obligations		-		34		-		34
Corporate debt securities		-		73,103		-		73,103
Mutual funds		5,915		-		-		5,915
Preferred stock of government sponsored entities		-		2,803		-		2,803
Other equity securities		-		7,962		-		7,962
Total securities available-for-sale		230,719		1,254,405		-		1,485,124
Warrants		-		-		94		94
Foreign exchange contracts		-		3,313		-		3,313
Total assets	$	230,719	$	1,257,718	$	94	$	1,488,531
Liabilities
Interest rate swaps	$	-	$	14,878	$	-	$	14,878
Foreign exchange contracts		-		913		-		913
Total liabilities	$	-	$	15,791	$	-	$	15,791

December 31, 2015	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	284,288	$	-	$	-	$	284,288
U.S. government sponsored entities		-		148,160		-	$	148,160
Mortgage-backed securities		-		1,062,269		-		1,062,269
Collateralized mortgage obligations		-		36		-		36
Corporate debt securities		-		73,855		-		73,855
Mutual funds		5,833		-		-		5,833
Preferred stock of government sponsored entities		-		3,216		-		3,216
Other equity securities		-		8,695		-		8,695
Total securities available-for-sale		290,121		1,296,231		-		1,586,352
Warrants		-		-		62		62
Foreign exchange contracts		-		3,339		-		3,339
Total assets	$	290,121	$	1,299,570	$	62	$	1,589,753
Liabilities
Option contracts	$	-	$	28	$	-	$	28
Interest rate swaps		-		6,496		-	$	6,496
Foreign exchange contracts		-		4,124		-		4,124
Total liabilities	$	-	$	10,648	$	-	$	10,648

Fair Value Measurements, Nonrecurring [Table Text Block]

	March 31, 2016								Total Losses
	Fair Value Measurements Using						Total at		Three Months Ended
	Level 1		Level 2		Level 3		Fair Value		March 31, 2016		March 31, 2015
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	2,493	$	2,493	$	-	$	-
Commercial mortgage loans		-		-		19,565		19,565		-		56
Residential mortgage loans and equity lines		-		-		11,971		11,971		-		148
Total impaired loans		-		-		34,029		34,029		-		204
Other real estate owned (1)		-		11,906		4,206		16,112		128		181
Investments in venture capital and private company stock		-		-		4,831		4,831		110		224
Total assets	$	-	$	11,906	$	43,066	$	54,972	$	238	$	609

	December 31, 2015								Total Losses
	Fair Value Measurements Using						Total at		Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2015		December 31, 2014
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	6,317	$	6,317	$	806	$	17
Commercial mortgage loans		-		-		20,359		20,359		598		3,914
Residential mortgage loans and equity lines		-		-		13,009		13,009		146		27
Total impaired loans		-		-		39,685		39,685		1,550		3,958
Other real estate owned (1)		-		10,047		4,235		14,282		404		202
Investments in venture capital and private company stock		-		-		4,922		4,922		553		436
Total assets	$	-	$	10,047	$	48,842	$	58,889	$	2,507	$	4,596

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Note 12 - Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

	March 31, 2016				December 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	180,130	$	180,130
Short-term investments		432,384		432,384		536,880		536,880
Securities available-for-sale		1,485,124		1,485,124		1,586,352		1,586,352
Loans held for sale		-		-		6,676		6,676
Loans, net		10,221,510		10,142,747		10,016,227		9,938,810
Investment in Federal Home Loan Bank stock		17,250		17,250		17,250		17,250
Warrants		94		94		62		62

	Notional Amount		Fair Value		Notional Amount		Fair Value
Foreign exchange contracts	$	138,201	$	3,314	$	100,602	$	3,339

	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial Liabilities
Deposits	$	10,324,116	$	10,331,030	$	10,509,087	$	10,509,879
Securities sold under agreements to repurchase		400,000		413,195		400,000		413,417
Advances from Federal Home Loan Bank		475,000		475,128		275,000		274,488
Other borrowings		17,792		15,478		18,593		16,684
Long-term debt		119,136		58,951		119,136		58,420

	Notional Amount		Fair Value		Notional Amount		Fair Value
Option contracts	$	-	$	-	$	9,396	$	28
Foreign exchange contracts		73,006		913		115,418		4,124
Interest rate swaps		476,590		14,878		459,416		6,496

	Notional Amount		Fair Value			Notional Amount		Fair Value
Off-Balance Sheet Financial Instruments
Commitments to extend credit	$	2,098,360	$	(5,722	)	$	1,971,848	$	(5,570	)
Standby letters of credit		49,334		(199	)		49,081		(194	)
Other letters of credit		30,883		(18	)		38,131		(22	)
Bill of lading guarantees		52		-			454		(1	)

Schedule of Fair Value of Financial Instruments [Table Text Block]

	March 31, 2016
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	192,642	$	192,642	$	-	$	-
Short-term investments		432,384		432,384		-		-
Securities available-for-sale		1,485,124		230,719		1,254,405		-
Loans, net		10,142,747		-		-		10,142,747
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		94		-		-		94
Financial Liabilities
Deposits		10,331,030		-		-		10,331,030
Securities sold under agreements to repurchase		413,195		-		413,195		-
Advances from Federal Home Loan Bank		475,128		-		475,128		-
Other borrowings		15,478		-		-		15,478
Long-term debt		58,951		-		58,951		-

	December 31, 2015
	Estimated Fair Value Measurements		Level 1		Level 2		Level 3
	(In thousands)
Financial Assets
Cash and due from banks	$	180,130	$	180,130	$	-	$	-
Short-term investments		536,880		536,880		-		-
Securities available-for-sale		1,586,352		290,121		1,296,231		-
Loans held-for-sale		6,676		-		-		6,676
Loans, net		9,938,810		-		-		9,938,810
Investment in Federal Home Loan Bank stock		17,250		-		17,250		-
Warrants		62		-		-		62
Financial Liabilities
Deposits		10,509,879		-		-		10,509,879
Securities sold under agreements to repurchase		413,417		-		413,417		-
Advances from Federal Home Loan Bank		274,488		-		-		274,488
Other borrowings		16,684		-		-		16,684
Long-term debt		58,420		-		58,420		-

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Note 15 - Balance Sheet Offsetting (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure Text Block Supplement [Abstract]

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

							Gross Amounts Not Offset in the Balance Sheet
	Gross Amounts Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts Presented in the Balance Sheet		Financial Instruments		Collateral Posted			Net Amount
	(In thousands)
March 31, 2016
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	14,878	$	-	$	14,878	$	-	$	(14,878	)	$	-
December 31, 2015
Liabilities:
Securities sold under agreements to repurchase	$	400,000	$	-	$	400,000	$	-	$	(400,000	)	$	-
Derivatives	$	6,496	$	-	$	6,496	$	-	$	(6,496	)	$	-

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Note 16 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Three months ended March 31, 2016									Three months ended March 31, 2015
	Pre-tax			Tax expense/ (benefit)			Net-of-tax			Pre-tax			Tax expense/ (benefit)			Net-of-tax
	(In thousands)
Beginning balance, loss, net of tax
Securities available-for-sale							$	(5,431	)							$	(3,172	)
Cash flow hedge derivatives								(2,995	)								(2,397	)
Total							$	(8,426	)							$	(5,569	)
Net unrealized gains/(losses) arising during the period
Securities available-for-sale	$	17,863		$	7,509		$	10,354		$	11,213		$	4,714		$	6,499
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total		12,480			5,246			7,234			8,473			3,562		$	4,911
Reclassification adjustment for net losses in net income
Securities available-for-sale		206			87			119			21			9			12
Cash flow hedge derivatives		-			-			-			-			-			-
Total		206			87			119			21			9			12
Total other comprehensive income/(loss)
Securities available-for-sale		18,069			7,596			10,473			11,234			4,723			6,511
Cash flow hedge derivatives		(5,383	)		(2,263	)		(3,120	)		(2,740	)		(1,152	)		(1,588	)
Total	$	12,686		$	5,333		$	7,353		$	8,494		$	3,571		$	4,923
Ending balance, gain/(loss), net of tax
Securities available-for-sale							$	5,042								$	3,339
Cash flow hedge derivatives								(6,115	)								(3,985	)
Total							$	(1,073	)							$	(646	)

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Note 1 - Business (Details)	Mar. 31, 2016
Note 1 - Business (Details) [Line Items]
Number of Limited Partnerships in Housing Investments	6
Percentage of Subsidiaries Common Securities Owned by Parent Company	100.00%
Number of Business Trust	5
Southern California [Member]
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	21
Northern California Member
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	12
NEW YORK
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	12
ILLINOIS
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	3
WASHINGTON
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	3
TEXAS
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	2
MASSACHUSETTS
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	1
NEW JERSEY
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	1
MARYLAND
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	1
NEVADA
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	1
HONG KONG
Note 1 - Business (Details) [Line Items]
Number of Branch Locations	1

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Note 4 - Earnings Per Share (Details) - Earnings Per Share - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Note 4 - Earnings Per Share (Details) - Earnings Per Share [Line Items]
Net income (in Dollars)	$ 46,163	$ 35,980
Weighted-average shares:
Basic weighted-average number of common shares outstanding	79,734,519	79,835,628
Dilutive effect of weighted-average outstanding common share equivalents
Diluted weighted-average number of common shares outstanding	80,393,849	80,309,383
Average stock options and warrants with anti-dilutive effect	359,544	1,670,231
Earnings per common share:
Basic (in Dollars per share)	$ 0.58	$ 0.45
Diluted (in Dollars per share)	$ 0.57	$ 0.45
Warrant [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Dilutive effect of weighted-average outstanding common share equivalents	452,368	344,919
Employee Stock Option [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Dilutive effect of weighted-average outstanding common share equivalents	83,018	108,457
Restricted Stock Units (RSUs) [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Dilutive effect of weighted-average outstanding common share equivalents	123,944	20,379

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Note 5 - Stock-based Compensation (Details)	1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2015 shares	Dec. 31, 2014 shares	Mar. 31, 2016 USD ($) shares	Mar. 31, 2015 USD ($) shares	Dec. 31, 2015 $ / shares shares	Dec. 31, 2013 shares
Note 5 - Stock-based Compensation (Details) [Line Items]
Maximum Period of Common Stock Granted			10 years
Annual Increments to Be Vested in Common Stock Units			20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares			0	0
Allocated Share-based Compensation Expense (in Dollars)			$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | shares			2,110	3,750
Proceeds from Stock Options Exercised (in Dollars)			$ 49,000	$ 88,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars)			9,000	10,000
Benefit (Shortfall) of Tax Deductions from Share-based Compensation (in Dollars)			(3,298,000)	(4,395,000)
Additional Paid-in Capital [Member]
Note 5 - Stock-based Compensation (Details) [Line Items]
Benefit (Shortfall) of Tax Deductions from Share-based Compensation (in Dollars)			$ 140,000
2005 Incentive Plan [Member]
Note 5 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares			3,789,782
Restricted Stock Units (RSUs) [Member]
Note 5 - Stock-based Compensation (Details) [Line Items]
Allocated Share-based Compensation Expense (in Dollars)			$ 1,000,000	$ 1,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares			0		37,675
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) | $ / shares					$ 27.53
Number of Officers Receiving Award	7	7				8
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)			$ 6,500,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years 73 days
Performance TSR Restricted Stock [Member]
Note 5 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	61,209	60,456				119,840
Performance EPS Restricted Stock Units [Member]
Note 5 - Stock-based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	57,409	57,642				116,186

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Note 5 - Stock-based Compensation (Details) - Stock Options - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Stock Options [Abstract]
Balance - shares	420,390		1,031,170
Balance - weighted-average exercise price	$ 23.80		$ 31.27
Balance - weighted-average remaining contractual life	1 year 292 days		328 days
Balance - aggregate intrinisc value	$ 2,026		$ 3,268
Exercised	(2,110)	(3,750)
Exercised	$ 23.37
Forfeited	(608,670)
Forfeited	$ 36.46
Exercisable, March 31, 2016	420,390
Exercisable, March 31, 2016	$ 23.80
Exercisable, March 31, 2016	1 year 292 days
Exercisable, March 31, 2016	$ 2,026

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Note 5 - Stock-based Compensation (Details) - Restricted Stock Units - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2016 shares
Note 5 - Stock-based Compensation (Details) - Restricted Stock Units [Line Items]
Balance at December 31, 2015	542,375
Balance at March 31, 2016	537,563
Vested	(4,812)

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Note 5 - Stock-based Compensation (Details) - Tax Short-fall from Share-based Payment Arrangements - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Tax Short-fall from Share-based Payment Arrangements [Abstract]
Tax benefit/(short-fall) of tax deductions in excess of grant-date fair value	$ (3,298)	$ (4,395)
Benefit of tax deductions on grant-date fair value	3,302	4,442
Total benefit of tax deductions	$ 4	$ 47

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Note 6 - Investment Securities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities	$ 1,485,124,000		$ 1,586,352,000
Proceeds from Sale of Mortgage Backed Securities (MBS) categorized as Available-for-sale	0	$ 406,900,000
Proceeds from Maturities, Prepayments and Calls of Mortgage Backed Securities (MBS)	33,500,000	12,100,000
Proceeds from Sales and Repayments of Other Investment Securities	0	335,100,000
Proceeds from Maturities Repayments and Calls of Other Investment Securities	110,000,000	0
Realized Loss from Sale and Call of Other Investment Securities	0	1,700,000
Realized Gain from Sale and Call of Other Investment Securities	0	$ 1,700,000
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities	206,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	2,875,000		15,923,000
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	0
Pledged Investment Securities	$ 445,600,000		$ 449,600,000

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Note 6 - Investment Securities (Details) - Investment Securities - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities Available-for-Sale
Securities available-for-sale, amortized cost	$ 1,476,424	$ 1,595,723
Securities available-for-sale, gross unrealized gains	11,575	6,552
Securities available-for-sale, gross unrealized losses	2,875	15,923
Securities available-for-sale	1,485,124	1,586,352
US Treasury Securities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	224,750	284,678
Securities available-for-sale, gross unrealized gains	61	5
Securities available-for-sale, gross unrealized losses	7	395
Securities available-for-sale	224,804	284,288
US Government-sponsored Enterprises Debt Securities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	100,000	150,000
Securities available-for-sale, gross unrealized gains	10
Securities available-for-sale, gross unrealized losses		1,840
Securities available-for-sale	100,010	148,160
Collateralized Mortgage Backed Securities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	1,063,944	1,073,108
Securities available-for-sale, gross unrealized gains	6,553	560
Securities available-for-sale, gross unrealized losses	4	11,399
Securities available-for-sale	1,070,493	1,062,269
Collateralized Mortgage Obligations [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	60	63
Securities available-for-sale, gross unrealized losses	26	27
Securities available-for-sale	34	36
Corporate Debt Securities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	74,957	74,955
Securities available-for-sale, gross unrealized gains	413	425
Securities available-for-sale, gross unrealized losses	2,267	1,525
Securities available-for-sale	73,103	73,855
Mutual Funds [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	6,000	6,000
Securities available-for-sale, gross unrealized losses	85	167
Securities available-for-sale	5,915	5,833
Preferred Stock of Government Sponsored Entities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	2,811	2,811
Securities available-for-sale, gross unrealized gains	478	633
Securities available-for-sale, gross unrealized losses	486	228
Securities available-for-sale	2,803	3,216
Other Equity Securities [Member]
Securities Available-for-Sale
Securities available-for-sale, amortized cost	3,902	4,108
Securities available-for-sale, gross unrealized gains	4,060	4,929
Securities available-for-sale, gross unrealized losses		342
Securities available-for-sale	$ 7,962	$ 8,695

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Note 6 - Investment Securities (Details) - Investments by Contractual Maturity Date - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Investments by Contractual Maturity Date [Abstract]
Due in one year or less		$ 154,963
Due in one year or less		154,978
Due after one year through five years		104,879
Due after one year through five years		105,470
Due after five years through ten years		145,501
Due after five years through ten years		143,358
Due after ten years (1)	[1]	1,071,081
Due after ten years (1)	[1]	1,081,318
Total		1,476,424	$ 1,595,723
Total		$ 1,485,124	$ 1,586,352

[1] Equity securities are reported in this category

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Note 6 - Investment Securities (Details) - Temporarily Impaired Securities - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value	$ 42,534	$ 1,410,387
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses	546	14,253
Securities Available-for-Sale - 12 Months or longer - Fair value	48,778	49,400
Securities Available-for-Sale - 12 Months or longer - Unrealized Losses	2,329	1,670
Securities Available-for-Sale - Fair Value	91,312	1,459,787
Securities Available-for-Sale - Unrealized Losses	2,875	15,923
US Treasury Securities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value	29,965	224,289
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses	7	395
Securities Available-for-Sale - Fair Value	29,965	224,289
Securities Available-for-Sale - Unrealized Losses	7	395
Collateralized Mortgage Backed Securities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value	389	1,025,342
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses	3	11,398
Securities Available-for-Sale - 12 Months or longer - Fair value	46	6
Securities Available-for-Sale - 12 Months or longer - Unrealized Losses	1	1
Securities Available-for-Sale - Fair Value	435	1,025,348
Securities Available-for-Sale - Unrealized Losses	4	11,399
Collateralized Mortgage Obligations [Member]
Securities Available-for-Sale
Securities Available-for-Sale - 12 Months or longer - Fair value	34	36
Securities Available-for-Sale - 12 Months or longer - Unrealized Losses	26	27
Securities Available-for-Sale - Fair Value	34	36
Securities Available-for-Sale - Unrealized Losses	26	27
Corporate Debt Securities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value	9,950	9,950
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses	50	50
Securities Available-for-Sale - 12 Months or longer - Fair value	42,783	43,525
Securities Available-for-Sale - 12 Months or longer - Unrealized Losses	2,217	1,475
Securities Available-for-Sale - Fair Value	52,733	53,475
Securities Available-for-Sale - Unrealized Losses	2,267	1,525
Mutual Funds [Member]
Securities Available-for-Sale
Securities Available-for-Sale - 12 Months or longer - Fair value	5,915	5,833
Securities Available-for-Sale - 12 Months or longer - Unrealized Losses	85	167
Securities Available-for-Sale - Fair Value	5,915	5,833
Securities Available-for-Sale - Unrealized Losses	85	167
Preferred Stock of Government Sponsored Entities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value	2,230	2,488
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses	486	228
Securities Available-for-Sale - Fair Value	2,230	2,488
Securities Available-for-Sale - Unrealized Losses	$ 486	228
US Government-sponsored Enterprises Debt Securities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value		148,160
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses		1,840
Securities Available-for-Sale - Fair Value		148,160
Securities Available-for-Sale - Unrealized Losses		1,840
Other Equity Securities [Member]
Securities Available-for-Sale
Securities Available-for-Sale - Less than 12 Months - Fair Value		158
Securities Available-for-Sale - Less than 12 Months - Unrealized Losses		342
Securities Available-for-Sale - Fair Value		158
Securities Available-for-Sale - Unrealized Losses		$ 342

XML

Note 7 - Loans (Details)	3 Months Ended
	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Note 7 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 134,815,000	$ 133,810,000
Percentage of Charge-off to Contractual Balances for Impaired Loans	14.20%	22.40%
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Loans and Leases Receivable, Impaired, Commitment to Lend		$ 0
Nonaccrual Loans [Member]
Note 7 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 44,600,000	52,100,000
Financing Receivable, Modifications, Recorded Investment	23,200,000	39,900,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	5,300,000	2,000,000
Accruing Troubled Debt Restructuring [Member]
Note 7 - Loans (Details) [Line Items]
Impaired Financing Receivable, Recorded Investment	90,200,000	81,700,000
Financing Receivable, Modifications, Recorded Investment	90,200,000	81,700,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	$ 1,500,000	$ 5,400,000
Minimum [Member]
Note 7 - Loans (Details) [Line Items]
Period Loan is in Payment Default	60 days
Minimum [Member] | Rate Reduction [Member]
Note 7 - Loans (Details) [Line Items]
Troubled Debt Restructurings Length of Modifications	6 months
Maximum [Member]
Note 7 - Loans (Details) [Line Items]
Period Loan is in Payment Default	90 days
Maximum [Member] | Rate Reduction [Member]
Note 7 - Loans (Details) [Line Items]
Troubled Debt Restructurings Length of Modifications	3 years

XML

Note 7 - Loans (Details) - Components of Loans in Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Type of Loans:
Gross loans	$ 10,363,647	$ 10,163,452
Less:
Allowance for loan losses	(134,552)	(138,963)
Unamortized deferred loan fees	(7,585)	(8,262)
Total loans, net	10,221,510	10,016,227
Loans held for sale		6,676
Commercial Portfolio Segment [Member]
Type of Loans:
Gross loans	2,251,187	2,316,863
Less:
Allowance for loan losses	(56,381)	(56,199)
Residential Portfolio Segment [Member]
Type of Loans:
Gross loans	2,043,789	1,932,355
Commercial Real Estate Portfolio Segment [Member]
Type of Loans:
Gross loans	5,445,575	5,301,218
Less:
Allowance for loan losses	(50,451)	(49,440)
Real Estate Construction Portfolio Segment [Member]
Type of Loans:
Gross loans	453,469	441,543
Less:
Allowance for loan losses	(12,744)	(22,170)
Equity Lines Portfolio Segment [Member]
Type of Loans:
Gross loans	168,283	168,980
Consumer Portfolio Segment [Member]
Type of Loans:
Gross loans	1,344	2,493
Less:
Allowance for loan losses	$ (7)	$ (9)

XML

Note 7 - Loans (Details) - Average Balance and Interest Income Recognized Related to Impaired Loans - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Impaired [Line Items]
Loans, average recorded investment	$ 137,405	$ 175,989
Loans, interest income recognized	1,207	1,335
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Loans, average recorded investment	12,670	25,426
Loans, interest income recognized	120	229
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Loans, average recorded investment	20,292	22,990
Loans, interest income recognized	65	65
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Loans, average recorded investment	87,452	110,293
Loans, interest income recognized	890	917
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Loans, average recorded investment	16,991	17,280
Loans, interest income recognized	$ 132	$ 124

XML

Note 7 - Loans (Details) - Impaired Loans and Related Allowance for Credit Losses - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
With no allocated allowance
Loans with no related allowance, unpaid principal balance	$ 123,330	$ 129,970
Loans with no related allowance, recorded investment	93,597	86,374
Loans with related allowance, unpaid principal balance	44,891	50,398
Loans with related allowance, recorded investment	41,218	47,436
Allowance	7,190	7,749
Total impaired loans	168,221	180,368
Total impaired loans	134,815	133,810
Total impaired loans	7,190	7,749
Commercial Portfolio Segment [Member]
With no allocated allowance
Loans with no related allowance, unpaid principal balance	10,912	15,493
Loans with no related allowance, recorded investment	8,968	6,721
Loans with related allowance, unpaid principal balance	4,188	7,757
Loans with related allowance, recorded investment	2,718	6,847
Allowance	225	530
Total impaired loans	225	530
Real Estate Construction Portfolio Segment [Member]
With no allocated allowance
Loans with related allowance, unpaid principal balance	33,009	51,290
Loans with related allowance, recorded investment	11,857	22,002
Commercial Real Estate Portfolio Segment [Member]
With no allocated allowance
Loans with no related allowance, unpaid principal balance	74,480	59,954
Loans with no related allowance, recorded investment	67,988	54,625
Loans with related allowance, unpaid principal balance	27,369	28,258
Loans with related allowance, recorded investment	26,157	27,152
Allowance	6,593	6,792
Total impaired loans	6,593	6,792
Residential Mortgage and Equity Lines Portfolio Segment [Member]
With no allocated allowance
Loans with no related allowance, unpaid principal balance	4,929	3,233
Loans with no related allowance, recorded investment	4,784	3,026
Loans with related allowance, unpaid principal balance	13,334	14,383
Loans with related allowance, recorded investment	12,343	13,437
Allowance	372	427
Total impaired loans	$ 372	$ 427

XML

Note 7 - Loans (Details) - Aging of Loan Portfolio - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	$ 113,788	$ 78,466
Non-accrual loans	44,643	52,130
Loans not past due	10,249,859	10,084,986
Loans	10,363,647	10,163,452
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	60,081	22,854
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	9,064	3,482
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	45,894	12,133
Non-accrual loans	2,645	3,545
Loans not past due	2,205,293	2,304,730
Loans	2,251,187	2,316,863
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	35,329	8,367
Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	7,920	221
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	7,708	23,591
Non-accrual loans	6,179	16,306
Loans not past due	445,761	417,952
Loans	453,469	441,543
Real Estate Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	1,529	7,285
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	46,817	29,697
Non-accrual loans	28,537	25,231
Loans not past due	5,398,758	5,271,521
Loans	5,445,575	5,301,218
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	17,136	2,243
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	1,144	2,223
Residential Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	13,369	13,045
Non-accrual loans	7,282	7,048
Loans not past due	2,198,703	2,088,290
Loans	2,212,072	2,101,335
Residential Mortgage Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due	6,087	4,959
Residential Mortgage Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due		1,038
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans not past due	1,344	2,493
Loans	$ 1,344	$ 2,493

XML

Note 7 - Loans (Details) - Troubled Debt Restructuring - Accruing Troubled Debt Restructuring [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2015 USD ($)
Note 7 - Loans (Details) - Troubled Debt Restructuring [Line Items]
No. of Loans	8
Pre-Modification Recorded Investment	$ 10,985
Post-Modification Recorded Investment	10,837
Specific Reserve	148
Charge-offs	$ 46
Commercial Portfolio Segment [Member]
Note 7 - Loans (Details) - Troubled Debt Restructuring [Line Items]
No. of Loans	1
Pre-Modification Recorded Investment	$ 850
Post-Modification Recorded Investment	$ 850
Commercial Real Estate Portfolio Segment [Member]
Note 7 - Loans (Details) - Troubled Debt Restructuring [Line Items]
No. of Loans	3
Pre-Modification Recorded Investment	$ 8,613
Post-Modification Recorded Investment	$ 8,613
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Note 7 - Loans (Details) - Troubled Debt Restructuring [Line Items]
No. of Loans	4
Pre-Modification Recorded Investment	$ 1,522
Post-Modification Recorded Investment	1,374
Specific Reserve	148
Charge-offs	$ 46

XML

Note 7 - Loans (Details) - Accruing Troubled Debt Restructurings - Accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Accruing TDRs	$ 90,172
Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	38,993	$ 30,200
Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	7,021	7,044
Rate Reduction and Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	44,158	81,680
Rate Reduction and Forgiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs		44,436
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	9,041
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	7,446	8,298
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	1,595	10,024
Commercial Portfolio Segment [Member] | Rate Reduction and Forgiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs		1,726
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	5,679
Real Estate Construction Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	5,679	5,696
Real Estate Construction Portfolio Segment [Member] | Rate Reduction and Forgiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs		5,696
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	65,607
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	26,393	16,701
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	6,025	6,045
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	33,189	56,546
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Forgiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs		33,800
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	9,845
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	5,154	5,201
Residential Portfolio Segment [Member] | Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	996	999
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs	$ 3,695	9,414
Residential Portfolio Segment [Member] | Rate Reduction and Forgiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Accruing TDRs		$ 3,214

XML

Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings - Non Accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	$ 23,209	$ 39,923
Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	2,914	12,946
Rate Reduction and Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	20,295	26,977
Commercial Portfolio Segment [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	1,091	1,123
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	1,001	1,033
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	90	90
Real Estate Construction Portfolio Segment [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	21,560	15,806
Real Estate Construction Portfolio Segment [Member] | Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	1,532	9,981
Real Estate Construction Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	20,028	5,825
Residential Portfolio Segment [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	558	1,088
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	381	388
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs	$ 177	700
Commercial Real Estate Portfolio Segment [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs		21,906
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs		1,544
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items]
Non-accrual TDRs		$ 20,362

XML

Note 7 - Loans (Details) - Troubled Debt Restructuring Activity - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accruing Troubled Debt Restructuring [Member]
Note 7 - Loans (Details) - Troubled Debt Restructuring Activity [Line Items]
Beginning balance	$ 81,680	$ 104,356
New restructurings		10,628
Restructured loans restored to accrual status	10,303
Charge-offs		(148)
Payments	(1,811)	(4,254)
Restructured loans placed on nonaccrual		(10,189)
Ending balance	90,172	100,393
Non Accruing Troubled Debt Restructuring [Member]
Note 7 - Loans (Details) - Troubled Debt Restructuring Activity [Line Items]
Beginning balance	39,923	41,618
New restructurings		209
Restructured loans restored to accrual status	(10,303)
Charge-offs		(2,754)
Payments	(6,411)	(4,721)
Restructured loans placed on nonaccrual		10,189
Ending balance	$ 23,209	$ 44,541

XML

Note 7 - Loans (Details) - Portfolio by Risk Rating - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 10,363,647	$ 10,163,452
Loans held for sale		6,676
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	9,851,783	9,669,161
Loans held for sale		732
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	287,256	272,066
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	213,883	210,497
Loans held for sale		5,944
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	10,725	11,728
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	2,251,187	2,316,863
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	2,081,780	2,143,270
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	92,891	110,338
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	75,461	61,297
Commercial Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,055	1,958
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	453,469	441,543
Real Estate Construction Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	436,415	413,765
Real Estate Construction Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	5,197	5,776
Real Estate Construction Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	11,357	21,502
Real Estate Construction Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	500	500
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	5,445,575	5,301,218
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	5,131,844	5,018,199
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	187,237	155,553
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	117,324	118,196
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	9,170	9,270
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	2,212,072	2,101,335
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	2,200,400	2,091,434
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,931	399
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	9,741	9,502
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,344	2,493
Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 1,344	$ 2,493

XML

Note 7 - Loans (Details) - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Method - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Loans individually evaluated for impairment
Loans individually evaluated for impairment, allowance	$ 7,190	$ 7,749
Loans individually evaluated for impairment, balance	134,815	133,810
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	127,362	131,214
Loans collectively evaluated for impairment, balance	10,228,832	10,029,642
Loans, allowance	134,552	138,963
Loans	10,363,647	10,163,452
Commercial Portfolio Segment [Member]
Loans individually evaluated for impairment
Loans individually evaluated for impairment, allowance	225	530
Loans individually evaluated for impairment, balance	11,686	13,568
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	56,156	55,669
Loans collectively evaluated for impairment, balance	2,239,501	2,303,295
Loans, allowance	56,381	56,199
Loans	2,251,187	2,316,863
Real Estate Construction Portfolio Segment [Member]
Loans individually evaluated for impairment
Loans individually evaluated for impairment, balance	11,857	22,002
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	12,744	22,170
Loans collectively evaluated for impairment, balance	441,612	419,541
Loans, allowance	12,744	22,170
Loans	453,469	441,543
Commercial Real Estate Portfolio Segment [Member]
Loans individually evaluated for impairment
Loans individually evaluated for impairment, allowance	6,593	6,792
Loans individually evaluated for impairment, balance	94,145	81,776
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	43,858	42,648
Loans collectively evaluated for impairment, balance	5,351,430	5,219,442
Loans, allowance	50,451	49,440
Loans	5,445,575	5,301,218
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans individually evaluated for impairment
Loans individually evaluated for impairment, allowance	372	427
Loans individually evaluated for impairment, balance	17,127	16,464
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	14,597	10,718
Loans collectively evaluated for impairment, balance	2,194,945	2,084,871
Loans, allowance	14,969	11,145
Loans	2,212,072	2,101,335
Consumer Portfolio Segment [Member]
Loans collectively evaluated for impairment
Loans collectively evaluated for impairment, allowance	7	9
Loans collectively evaluated for impairment, balance	1,344	2,493
Loans, allowance	7	9
Loans	$ 1,344	$ 2,493

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Note 7 - Loans (Details) - Allowance for Loan Losses by Portfolio Segment - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	$ 138,963	$ 161,420
Provision/(reversal) for possible loan losses	(10,500)	(5,000)
Charge-offs	(2,329)	(4,464)
Recoveries	8,418	4,133
Net charge-offs	6,089	(331)
Balance, ending	134,552	156,089
Reserve to impaired loans	7,190	11,044
Reserve to non-impaired loans	127,362	145,045
Reserve for off-balance sheet credit commitments	2,694	1,652
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	56,199	47,501
Provision/(reversal) for possible loan losses	1,265	793
Charge-offs	(2,070)	(864)
Recoveries	987	2,275
Net charge-offs	(1,083)	1,411
Balance, ending	56,381	49,705
Reserve to impaired loans	225	3,911
Reserve to non-impaired loans	56,156	45,794
Reserve for off-balance sheet credit commitments	2,641	903
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	22,170	27,652
Provision/(reversal) for possible loan losses	(16,702)	(4,427)
Recoveries	7,276	45
Net charge-offs	7,276	45
Balance, ending	12,744	23,270
Reserve to non-impaired loans	12,744	23,270
Reserve for off-balance sheet credit commitments		527
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	49,440	74,673
Provision/(reversal) for possible loan losses	978	(1,697)
Charge-offs	(110)	(3,452)
Recoveries	143	1,794
Net charge-offs	33	(1,658)
Balance, ending	50,451	71,318
Reserve to impaired loans	6,593	6,635
Reserve to non-impaired loans	43,858	64,683
Reserve for off-balance sheet credit commitments	53	181
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	11,145	11,578
Provision/(reversal) for possible loan losses	3,961	328
Charge-offs	(149)	(148)
Recoveries	12	19
Net charge-offs	(137)	(129)
Balance, ending	14,969	11,777
Reserve to impaired loans	372	498
Reserve to non-impaired loans	14,597	11,279
Reserve for off-balance sheet credit commitments		40
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning	9	16
Provision/(reversal) for possible loan losses	(2)	3
Balance, ending	7	19
Reserve to impaired loans	0
Reserve to non-impaired loans	$ 7	19
Reserve for off-balance sheet credit commitments		$ 1

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Note 9 - Borrowed Funds (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Note 9 - Borrowed Funds (Details) [Line Items]
Securities Sold under Agreements to Repurchase (in Dollars)	$ 400,000	$ 400,000
Weighted Average Rate of Securities Sold Under Agreements	3.89%	3.89%
Advances from Federal Home Loan Banks (in Dollars)	$ 475,000	$ 275,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	0.46%	1.13%
Floating to Fixed Rate Agreements Totaling $200 Million [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Number of Securities Sold Under Agreements to Repurchase	4
Total Floating to Fixed Rate (in Dollars)	$ 200,000
Debt, Weighted Average Interest Rate	5.00%
Floating Interest Rate, Range of Time Period	1 year
Securities Sold under Agreements to Repurchase [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Investment Securities Pledged As Collateral (in Dollars)	$ 429,000	$ 430,000
Mature in March 2018 [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, Interest Rate			1.13%
Non Callable Fixed Rate Securities [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Weighted Average Rate of Securities Sold Under Agreements	4.00%
Number of Securities Sold Under Agreements to Repurchase	200,000,000	4
Debt, Weighted Average Interest Rate	2.78%	2.78%
Mature in August 2016 [Member] | Non Callable Fixed Rate Securities [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months (in Dollars)	$ 50,000
Mature in July 2017 [Member] | Non Callable Fixed Rate Securities [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Year Two (in Dollars)	50,000
Mature in June 2018 [Member] | Non Callable Fixed Rate Securities [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Year Three (in Dollars)	50,000
Mature in July 2018 [Member] | Non Callable Fixed Rate Securities [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Year Four (in Dollars)	50,000
Over-night Borrowings [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Advances from Federal Home Loan Banks (in Dollars)	$ 100,000	$ 250,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	0.48%	0.27%
At Fixed Rate [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Advances from Federal Home Loan Banks (in Dollars)	$ 375,000	$ 25,000
Mature in April 2016 [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Advances from Federal Home Loan Banks (in Dollars)	350,000
Mature in March 2018 [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Advances from Federal Home Loan Banks (in Dollars)	$ 25,000
Maximum [Member] | Floating to Fixed Rate Agreements Totaling $200 Million [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.07%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Floating to Fixed Rate Agreements Totaling $200 Million [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.40%
Minimum [Member] | Floating to Fixed Rate Agreements Totaling $200 Million [Member]
Note 9 - Borrowed Funds (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.89%

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Note 10 - Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Note 10 - Income Taxes (Details) [Line Items]
Income Tax Expense (Benefit)	$ 22,675	$ 21,364
Effective Income Tax Rate Reconciliation, Percent	32.90%	37.30%
Income Taxes Receivable			$ 28,900
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | Earliest Tax Year [Member]
Note 10 - Income Taxes (Details) [Line Items]
Open Tax Year	2012
State and Local Jurisdiction [Member] | California Franchise Tax Board [Member] | Earliest Tax Year [Member]
Note 10 - Income Taxes (Details) [Line Items]
Open Tax Year	2008

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Note 11 - Fair Value Measurements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Note 11 - Fair Value Measurements (Details) [Line Items]
Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Warrants (in Dollars)	$ 94,000	$ 62,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets (in Dollars)	$ 27,271,000	24,701,000
Accounts Receivable Collateral [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Collateral Discount Rates	55.00%
Inventory Collateral [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Collateral Discount Rates	65.00%
Net of Estimated Disposal Costs [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Other Real Estate, Foreclosed Assets, and Repossessed Assets (in Dollars)	$ 27,300,000	$ 24,700,000
Minimum [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Expected Life of Warrants	1 year
Estimated Sales Cost Applied to Collateral	3.00%
Maximum [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Expected Life of Warrants	7 years
Estimated Sales Cost Applied to Collateral	6.00%
Warrants Outstanding [Member] | Minimum [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Fair Value Assumptions, Risk Free Interest Rate	0.79%
Fair Value Assumptions, Expected Volatility Rate	13.06%
Warrants Outstanding [Member] | Maximum [Member]
Note 11 - Fair Value Measurements (Details) [Line Items]
Fair Value Assumptions, Risk Free Interest Rate	1.60%
Fair Value Assumptions, Expected Volatility Rate	18.21%

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Note 11 - Fair Value Measurements (Details) - Assets and Liabilities Measured at Fair Value on a Recurring Basis - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities available-for-sale
Securities available-for-sale	$ 1,485,124	$ 1,586,352
Assets	1,488,531	1,589,753
Liabilities
Liabilities	15,791	10,648
Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale
Securities available-for-sale	230,719	290,121
Assets	230,719	290,121
Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	1,254,405	1,296,231
Assets	1,257,718	1,299,570
Liabilities
Liabilities	15,791	10,648
Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale
Assets	94	62
US Treasury Securities [Member]
Securities available-for-sale
Securities available-for-sale	224,804	284,288
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale
Securities available-for-sale	224,804	284,288
US Government-sponsored Enterprises Debt Securities [Member]
Securities available-for-sale
Securities available-for-sale	100,010	148,160
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	100,010	148,160
Collateralized Mortgage Backed Securities [Member]
Securities available-for-sale
Securities available-for-sale	1,070,493	1,062,269
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	1,070,493	1,062,269
Collateralized Mortgage Obligations [Member]
Securities available-for-sale
Securities available-for-sale	34	36
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	34	36
Corporate Debt Securities [Member]
Securities available-for-sale
Securities available-for-sale	73,103	73,855
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	73,103	73,855
Mutual Funds [Member]
Securities available-for-sale
Securities available-for-sale	5,915	5,833
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale
Securities available-for-sale	5,915	5,833
Preferred Stock of Government Sponsored Entities [Member]
Securities available-for-sale
Securities available-for-sale	2,803	3,216
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	2,803	3,216
Other Equity Securities [Member]
Securities available-for-sale
Securities available-for-sale	7,962	8,695
Other Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Securities available-for-sale	7,962	8,695
Warrant [Member]
Securities available-for-sale
Assets	94	62
Warrant [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale
Assets	94	62
Foreign Exchange Contract [Member]
Securities available-for-sale
Assets	3,313	3,339
Liabilities
Liabilities	913	4,124
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale
Assets	3,313	3,339
Liabilities
Liabilities	913	4,124
Interest Rate Swap [Member]
Liabilities
Liabilities	14,878	6,496
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities
Liabilities	$ 14,878	6,496
Option Contracts [Member]
Liabilities
Liabilities		28
Option Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities
Liabilities		$ 28

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Note 11 - Fair Value Measurements (Details) - Financial Assets and Liabilities Measured On a Non-recurring Basis - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Mar. 31, 2016		Mar. 31, 2015		Dec. 31, 2015		Dec. 31, 2014
Impaired loans by type:
Fair value measurement	$ 54,972				$ 58,889
Total losses/gains	238		$ 609		2,507		$ 4,596
Impaired Loans [Member]
Impaired loans by type:
Fair value measurement	34,029				39,685
Total losses/gains			204		1,550		3,958
Other Real Estate Owned [Member]
Impaired loans by type:
Fair value measurement	16,112	[1]			14,282	[2]
Total losses/gains	128	[1]	181	[1]	404	[2]	202	[2]
Investments in Venture Capital [Member]
Impaired loans by type:
Fair value measurement	4,831				4,922
Total losses/gains	$ 110		224		$ 553		436
Fair Value, Inputs, Level 1 [Member] | Other Real Estate Owned [Member]
Impaired loans by type:
Fair value measurement		[1]				[2]
Fair Value, Inputs, Level 2 [Member]
Impaired loans by type:
Fair value measurement	$ 11,906				$ 10,047
Fair Value, Inputs, Level 2 [Member] | Other Real Estate Owned [Member]
Impaired loans by type:
Fair value measurement	11,906	[1]			10,047	[2]
Fair Value, Inputs, Level 3 [Member]
Impaired loans by type:
Fair value measurement	43,066				48,842
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Impaired loans by type:
Fair value measurement	34,029				39,685
Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member]
Impaired loans by type:
Fair value measurement	4,206	[1]			4,235	[2]
Fair Value, Inputs, Level 3 [Member] | Investments in Venture Capital [Member]
Impaired loans by type:
Fair value measurement	4,831				4,922
Commercial Portfolio Segment [Member]
Impaired loans by type:
Fair value measurement	2,493				6,317
Total losses/gains					806		17
Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans by type:
Fair value measurement	2,493				6,317
Commercial Real Estate Portfolio Segment [Member]
Impaired loans by type:
Fair value measurement	19,565				20,359
Total losses/gains			56		598		3,914
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans by type:
Fair value measurement	19,565				20,359
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Impaired loans by type:
Fair value measurement	11,971				13,009
Total losses/gains			$ 148		146		$ 27
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans by type:
Fair value measurement	$ 11,971				$ 13,009

[1] Other real estate owned balance of $27.3 million in the condensed consolidated balance sheet is net of estimated disposal costs.

[2] Other real estate owned balance of $24.7 million in the consolidated balance sheet is net of estimated disposal costs.

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Note 12 - Fair Value of Financial Instruments (Details) - Fair Value of Financial Instruments - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Financial Assets
Cash and due from banks	$ 192,642	$ 180,130	$ 182,159	$ 176,830
Cash and due from banks	192,642	180,130
Short-term investments	432,384	536,880
Short-term investments	432,384	536,880
Securities available-for-sale	1,485,124	1,586,352
Loans held for sale		6,676
Loans held for sale		6,676
Loans, net	10,221,510	10,016,227
Loans, net	10,142,747	9,938,810
Investment in Federal Home Loan Bank stock	17,250	17,250
Investment in Federal Home Loan Bank stock	17,250	17,250
Warrants	94	62
Warrants	94	62
Foreign exchange contracts	138,201	100,602
Foreign exchange contracts	3,314	3,339
Financial Liabilities
Deposits	10,324,116	10,509,087
Deposits	10,331,030	10,509,879
Securities sold under agreements to repurchase	400,000	400,000
Securities sold under agreements to repurchase	413,195	413,417
Advances from Federal Home Loan Bank	475,000	275,000
Advances from Federal Home Loan Bank	475,128	274,488
Other borrowings	17,792	18,593
Other borrowings	15,478	16,684
Long-term debt	119,136	119,136
Long-term debt	58,951	58,420
Option contracts		9,396
Option contracts		28
Foreign exchange contracts	73,006	115,418
Foreign exchange contracts	913	4,124
Interest rate swaps	476,590	459,416
Interest rate swaps	14,878	6,496
Off-Balance Sheet Financial Instruments
Commitments to extend credit	2,098,360	1,971,848
Commitments to extend credit	(5,722)	(5,570)
Standby letters of credit	49,334	49,081
Standby letters of credit	(199)	(194)
Other letters of credit	30,883	38,131
Other letters of credit	(18)	(22)
Bill of lading guarantees	$ 52	454
Bill of lading guarantees		$ (1)

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Note 12 - Fair Value of Financial Instruments (Details) - Fair Value Hierarchy of Financial Instruments - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financial Assets
Cash and due from banks	$ 192,642	$ 180,130
Short-term investments	432,384	536,880
Securities available-for-sale	1,485,124	1,586,352
Loans held-for-sale		6,676
Loans, net	10,142,747	9,938,810
Investment in Federal Home Loan Bank stock	17,250	17,250
Warrants	94	62
Financial Liabilities
Deposits	10,331,030	10,509,879
Securities sold under agreement to repurchase	413,195	413,417
Advances from Federal Home Loan Bank	475,128	274,488
Other borrowings	15,478	16,684
Long-term debt	58,951	58,420
Fair Value, Inputs, Level 1 [Member]
Financial Assets
Cash and due from banks	192,642	180,130
Short-term investments	432,384	536,880
Securities available-for-sale	230,719	290,121
Fair Value, Inputs, Level 2 [Member]
Financial Assets
Securities available-for-sale	1,254,405	1,296,231
Investment in Federal Home Loan Bank stock	17,250	17,250
Financial Liabilities
Securities sold under agreement to repurchase	413,195	413,417
Advances from Federal Home Loan Bank	475,128
Long-term debt	58,951	58,420
Fair Value, Inputs, Level 3 [Member]
Financial Assets
Loans held-for-sale		6,676
Loans, net	10,142,747	9,938,810
Warrants	94	62
Financial Liabilities
Deposits	10,331,030	10,509,879
Advances from Federal Home Loan Bank		274,488
Other borrowings	$ 15,478	$ 16,684

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Note 14 - Financial Derivatives (Details) - USD ($)	1 Months Ended	3 Months Ended
	May. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Note 14 - Financial Derivatives (Details) [Line Items]
Junior Subordinated Notes	$ 119,100,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		$ (3,120,000)	$ (1,588,000)
Notional Amount of Option Contract		0
Negative Fair Value		913,000
Cash [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Collateral Already Posted, Aggregate Fair Value		13,300,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Derivative, Outstanding Notional Amount	$ 119,100,000	119,100,000
Derivative, Original Maturity	10 years
Derivative, Average Fixed Interest Rate	2.61%
Derivative, Average Variable Interest Rate	0.63%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		(6,100,000)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Derivative, Outstanding Notional Amount		$ 357,500,000
Derivative, Average Fixed Interest Rate		4.68%
Derivative, Average Variable Interest Rate		3.64%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		$ (4,300,000)
Derivative, Average Basis Spread on Variable Rate		3.21%
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member] | Cash Flow Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Net Accrued on Interest Rate Swaps		$ 620,000	703,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member] | Fair Value Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Net Accrued on Interest Rate Swaps		934,000	$ 683,000
Positive Fair Value Member
Note 14 - Financial Derivatives (Details) [Line Items]
Sum of Spot and Forward Contract Notional Amount		138,200,000		$ 100,600,000
Positive Fair Value		3,300,000		3,300,000
Negative Fair Value Member
Note 14 - Financial Derivatives (Details) [Line Items]
Notional Amount of Option Contract				9,400,000
Sum of Spot and Forward Contract Notional Amount		$ 73,000,000		115,400,000
Negative Fair Value				4,100,000
Open Option Contracts, Fair Value				$ 28,000
Minimum [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Derivative, Original Maturity		4 years
Maximum [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Note 14 - Financial Derivatives (Details) [Line Items]
Derivative, Original Maturity		8 years

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Note 15 - Balance Sheet Offsetting (Details) - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Liabilities:
Securities sold under agreements to repurchase, gross	$ 400,000	$ 400,000
Securities sold under agreements to repurchase, net	400,000	400,000
Securities sold under agreements to repurchase, collateral posted	(400,000)	(400,000)
Derivatives, gross	14,878	6,496
Derivatives, net	14,878	6,496
Derivatives, collateral posted	$ (14,878)	$ (6,496)

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Note 16 - Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity Attributable to Parent	$ 1,734,673		$ 1,747,778
Stockholders' Equity, Period Increase (Decrease)	13,100
Treasury Stock, Value, Acquired, Cost Method	54,400
Dividends, Common Stock, Cash	14,200
Net Income (Loss) Attributable to Parent	46,163	$ 35,980
Other Comprehensive Income (Loss), Net of Tax	$ 7,353	$ 4,923

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Note 16 - Stockholders' Equity (Details) - Accumulated Other Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Beginning balance, loss, net of tax
Securities available-for-sale	$ (5,431)	$ (3,172)
Cash flow hedge derivatives	(2,995)	(2,397)
Total	(8,426)	(5,569)
Net unrealized gains/(losses) arising during the period
Securities available-for-sale	10,354	6,499
Cash flow hedge derivatives	(3,120)	(1,588)
Reclassification adjustment for net losses in net income
Securities available-for-sale	(119)	(12)
Total other comprehensive income/(loss)
Total	7,353	4,923
Ending balance, gain/(loss), net of tax
Securities available-for-sale	5,042	3,339
Cash flow hedge derivatives	(6,115)	(3,985)
Total	(1,073)	(646)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Net unrealized gains/(losses) arising during the period
Securities available-for-sale	17,863	11,213
Securities available-for-sale	7,509	4,714
Securities available-for-sale	10,354	6,499
Reclassification adjustment for net losses in net income
Securities available-for-sale	206	21
Securities available-for-sale	87	9
Securities available-for-sale	119	12
Total other comprehensive income/(loss)
Securities available-for-sale	18,069	11,234
Securities available-for-sale	7,596	4,723
Securities available-for-sale	10,473	6,511
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Net unrealized gains/(losses) arising during the period
Cash flow hedge derivatives	(5,383)	(2,740)
Cash flow hedge derivatives	(2,263)	(1,152)
Cash flow hedge derivatives	(3,120)	(1,588)
Total	12,480	8,473
Total	5,246	3,562
Total	7,234	4,911
Reclassification adjustment for net losses in net income
Total	206	21
Total	87	9
Total	119	12
Total other comprehensive income/(loss)
Cash flow hedge derivatives	(5,383)	(2,740)
Cash flow hedge derivatives	(2,263)	(1,152)
Cash flow hedge derivatives	(3,120)	(1,588)
Total	12,686	8,494
Total	5,333	3,571
Total	$ 7,353	$ 4,923

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Note 17 - Stock Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended
	Feb. 29, 2016	Mar. 31, 2016	Feb. 01, 2016
Note 17 - Stock Repurchase Program (Details) [Line Items]
Treasury Stock, Value, Acquired, Cost Method (in Dollars)		$ 54.4
August 2015 Repurchase Program [Member]
Note 17 - Stock Repurchase Program (Details) [Line Items]
Treasury Stock, Shares, Acquired	633,250
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 17.0
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)	$ 26.82
February 2016 Repurchase Program [Member]
Note 17 - Stock Repurchase Program (Details) [Line Items]
Treasury Stock, Shares, Acquired	1,380,578
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 37.5
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)	$ 27.13
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			45,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		7,500,000