Cathay General Bancorp (CATY) 10-Q 10 May 18 2018 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document Information [Line Items]
Entity Registrant Name	Cathay General Bancorp
Entity Central Index Key	861,842
Trading Symbol	caty
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding (in shares)		81,240,422
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 199,713,000	$ 247,056,000
Short-term investments and interest bearing deposits	524,012,000	292,745,000
Cash and cash equivalents	723,725,000	539,801,000
Securities available-for-sale (amortized cost of $1,271,291 at March 31, 2018 and $1,336,345 at December 31, 2017	1,241,105,000	1,333,626,000
Loans held for sale		8,000,000
Loans	13,014,539,000	12,870,290,000
Less: Allowance for loan losses	(122,084,000)	(123,279,000)
Unamortized deferred loan fees, net	(3,289,000)	(3,245,000)
Loans, net	12,889,166,000	12,743,766,000
Equity securities	24,154,000	28,100,000
Federal Home Loan Bank stock	17,250,000	23,085,000
Other real estate owned, net	9,291,000	9,442,000
Affordable housing investments and alternative energy partnerships, net	271,780,000	272,871,000
Premises and equipment, net	101,926,000	103,064,000
Customers’ liability on acceptances	15,074,000	13,482,000
Accrued interest receivable	45,386,000	45,307,000
Goodwill	372,189,000	372,189,000
Other intangible assets, net	7,803,000	8,062,000
Other assets	163,488,000	167,491,000
Total assets	15,882,337,000	15,640,186,000
Deposits
Non-interest-bearing demand deposits	2,741,321,000	2,783,127,000
Interest-bearing deposits:
Demand deposits	1,398,076,000	1,410,519,000
Money market deposits	2,203,948,000	2,248,271,000
Savings deposits	801,054,000	857,199,000
Time deposits	5,867,852,000	5,390,777,000
Total deposits	13,012,251,000	12,689,893,000
Securities sold under agreements to repurchase	100,000,000	100,000,000
Advances from Federal Home Loan Banks, Total	325,000,000	430,000,000
Other borrowings of affordable housing investments	17,434,000	17,481,000
Long-term debt	194,136,000	194,136,000
Deferred payments from acquisition	35,744,000	35,404,000
Acceptances outstanding	15,074,000	13,482,000
Other liabilities	172,906,000	186,486,000
Total liabilities	13,872,545,000	13,666,882,000
Commitments and contingencies
Stockholders’ Equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 89,417,641 issued and 81,206,998 outstanding at March 31, 2018, and 89,104,022 issued and 80,893,379 outstanding at December 31, 2017	894,000	891,000
Additional paid-in-capital	934,335,000	932,874,000
Accumulated other comprehensive loss, net	(20,906,000)	(2,511,000)
Retained earnings	1,335,058,000	1,281,639,000
Treasury stock, at cost (8,210,643 shares at March 31, 2018, and at December 31, 2017)	(239,589,000)	(239,589,000)
Total equity	2,009,792,000	1,973,304,000
Total liabilities and equity	$ 15,882,337,000	$ 15,640,186,000

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Securities available-for-sale, amortized cost	$ 1,271,291	$ 1,336,345
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	89,417,641	89,104,022
Common stock, shares outstanding (in shares)	81,206,998	80,893,379
Treasury stock shares (in shares)	8,210,643	8,210,643

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Interest and Dividend Income
Loans receivable, including loan fees		$ 151,290	$ 124,910
Investment securities		6,458	4,406
Federal Home Loan Bank stock		396	412
Deposits with banks		1,556	1,076
Total interest and dividend income		159,700	130,804
Interest Expense
Time deposits		15,728	10,982
Other deposits		4,586	4,446
Securities sold under agreements to repurchase		714	1,550
Advances from Federal Home Loan Bank		971	288
Long-term debt		2,082	1,424
Deferred payments from acquisition		276
Total interest expense		24,357	18,690
Net interest income before reversal for credit losses		135,343	112,114
Reversal for credit losses		(3,000)	(2,500)
Net interest income after reversal for credit losses		138,343	114,614
Non-Interest Income
Net losses from equity securities		(3,847)
Securities gains/(losses), net			(466)
Letters of credit commissions		1,275	1,123
Depository service fees	[1]	6,867	6,660
Gain from acquisition		340
Other operating income		6,097	4,553
Total non-interest income		5,310	6,718
Non-Interest Expense
Salaries and employee benefits		30,377	25,871
Occupancy expense		5,452	4,699
Computer and equipment expense		3,094	2,724
Professional services expense		6,039	4,256
Data processing service expense		3,219	2,532
FDIC and regulatory assessments		2,035	2,520
Marketing expense		858	871
Other real estate owned (income)/expense		(212)	61
Amortization of investments in low income housing and alternative energy partnerships		5,761	4,850
Amortization of core deposit intangibles		234	172
Acquisition and integration costs		169
Other operating expense		3,945	3,330
Total non-interest expense		60,971	51,886
Income before income tax expense		82,682	69,446
Income tax expense		18,866	20,505
Net income		63,816	48,941
Other comprehensive income, net of tax
Unrealized holding losses on securities available-for-sale		(11,514)	(496)
Unrealized holding gain on cash flow hedge derivatives		2,193	299
Less: reclassification adjustments for gains/(losses) included in net income			(270)
Total other comprehensive gain, net of tax		(9,321)	73
Total other comprehensive income		$ 54,495	$ 49,014
Net income per common share:
Basic (in dollars per share)		$ 0.79	$ 0.61
Diluted (in dollars per share)		0.78	0.61
Cash dividends paid per common share (in dollars per share)		$ 0.24	$ 0.21
Weighted-average shares:
Basic (in shares)		81,123,380	79,703,593
Diluted weighted-average number of common shares outstanding (in shares)		81,680,445	80,413,178
Deposit Account [Member]
Non-Interest Income
Depository service fees		$ 1,445	$ 1,508
[1]	There were no adjustments to the Company's financial statements recorded as a result of the adoption of ASC 606. For comparability, the Company has adjusted prior period amounts to conform to the periods presentation.

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities
Net income	$ 63,816,000	$ 48,941,000
Adjustments to reconcile net income to net cash provided by operating activities:
Reversal for credit losses	(3,000,000)	(2,500,000)
Provision for losses on other real estate owned	33,000	272,000
Deferred tax liability	3,597,000	14,283,000
Depreciation and amortization	2,009,000	1,769,000
Net gains on sale and transfer of other real estate owned	(258,000)	(219,000)
Proceeds from sales of loans	8,000,000	7,500,000
Amortization on alternative energy partnerships, venture capital and other investments	(12,000)	187,000
Net loss/(gain) on sales and calls of securities		438,000
Amortization/accretion of security premiums/discounts, net	882,000	727,000
Unrealized loss on equity securities	3,847,000
Write-down on impaired securities		28,000
Stock based compensation and stock issued to officers as compensation	1,499,000	1,183,000
Net change in accrued interest receivable and other assets	7,870,000	(5,617,000)
Gain on acquisition	(340,000)
Net change in other liabilities	(2,995,000)	(12,926,000)
Net cash provided by operating activities	84,948,000	54,066,000
Cash Flows from Investing Activities
Purchase of investment securities available-for-sale	(125,714,000)	(99,965,000)
Proceeds from sale of investment securities available-for-sale		99,541,000
Proceeds from repayments, maturities and calls of investment securities available-for-sale	173,915,000	85,439,000
Redemptions of Federal Home Loan Bank stock	5,835,000
Net increase in loans	(141,205,000)	(170,843,000)
Purchase of premises and equipment	(638,000)	(1,016,000)
Proceeds from sales of other real estate owned	1,480,000	878,000
Net (increase)/decrease in investment in affordable housing and alternative energy partnerships	(10,673,000)	565,000
Net cash used for investing activities	(97,000,000)	(85,401,000)
Cash Flows from Financing Activities
Net increase/(decrease) in deposits	322,166,000	(87,333,000)
Net decrease in federal funds purchased and securities sold under agreements to repurchase		(200,000,000)
Advances from Federal Home Loan Bank	1,150,000,000	250,000,000
Repayment of Federal Home Loan Bank borrowings	(1,255,000,000)	(275,000,000)
Cash dividends paid	(19,469,000)	(16,756,000)
Proceeds from shares issued under Dividend Reinvestment Plan	664,000	617,000
Proceeds from exercise of stock options	838,000	422,000
Taxes paid related to net share settlement of RSUs	(3,223,000)	(5,118,000)
Net cash provided by (used in) financing activities	195,976,000	(333,169,000)
Increase/(decrease) in cash and cash equivalents	183,924,000	(364,504,000)
Cash and cash equivalents, beginning of the period	539,801,000	1,185,084,000
Cash and cash equivalents, end of the period	723,725,000	820,580,000
Supplemental disclosure of cash flow information
Interest	22,509,000	20,495,000
Income taxes paid	3,658,000	15,896,000
Non-cash investing and financing activities:
Net change in unrealized holding loss on securities available-for-sale, net of tax	(11,514,000)	(226,000)
Net change in unrealized holding loss on cash flow hedge derivatives	2,193,000	299,000
Transfers to other real estate owned from loans held for investment	715,000	726,000
Loans transferred from held for investment to held for sale, net		$ 5,835,000

Note 1 - Business

Note 1 - Business	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Nature of Operations [Text Block]	1. Cathay General Bancorp (“Bancorp”) is the holding company for Cathay Bank (the “Bank” and, together, with Bancorp, the “Company”), eight 100% five 1962 March 31, 2018, 26 15 12 three three two one one not

Note 2 - Basis of Presentation

Note 2 - Basis of Presentation	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
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 10 X. not not may December 31, 2018. 10 December 31, 2017. 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 condensed consolidated financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates. The Company expects that the most significant estimates subject to change are the allowance for loan losses, goodwill impairment, and other-than-temporary impairment. In the condensed consolidated statement of cash flows, the amounts for the three March 31, 2017 $251.6 $27.5 $218.0 $190.5

Note 3 - Recent Accounting Pron

Note 3 - Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	3 Recent Accounting Pronouncements Accounting Standards adopted in 201 8 In May 2014, 2014 09, 606 2014 09 2014 09 2015 14, 2016 08, 2016 10 2016 12, December 15, 2017 2014 09, not not 1, 2018 no not 17 In January 2016, 2016 01, 825 10 2016 01 December 15, 2017. $8.6 January 1, 2018 $3.8 March 31, 2018. 7 first 2018, 13 no In February 2018, 2018 02 December 15, 2018. January 1, 2018. $515,000 January 1, 2018. 18 Other Accounting Standards In February 2016, 2016 02, 842 2016 02 twelve 2016 02 December 15, 2018, 2016 02 2016 02 2016 02 January 1, 2019 In June 2016, 2016 13, 326 not 2016 13 December 15, 2019. 2016 13 not 2016 13 In January 2017, 2017 04, “ 350 2 2 December 15, 2019. 2017 04 not In March 2017, 2017 08, - 310 20 not December 15, 2018. In July 2017, 2017 11, 260 480 815 two 480, December 15, 2020. first 250 10 45 5 45 10. not not In August 2017, 2017 12, 815 December 15, 2018, December 15, 2019, December 15, 2020.

Note 4 - Acquisition

Note 4 - Acquisition	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Business Combination Disclosure [Text Block]	4. On July 14, 2017, July 8, 2016, $351.6 926,192 $100 November 14, 2017 $35.4 three December 12, 2017, $4.1 July 17, 2017 October 27, 2017, , nine 805 10 50, The assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the July 14, 2017 The fair value of the assets and the liabilities acquired as of July 14, 2017 SinoPac Bancorp Assets acquired: Cash and cash equivalents $ 166,932 Short-term investments 122,000 Securities available-for-sale 88,044 FHLB and FRB stock 19,890 Loans 705,792 Premises and equipment 6,239 Cash surrender value of life insurance 46,083 Deferred tax assets, net 40,690 Core deposit intangible 6,122 Accrued interest receivable and other assets 10,689 Total assets acquired 1,212,481 Liabilities assumed: Deposits 813,888 Advances from the Federal Home Loan Bank 30,000 Accrued interest payable and other liabilities 8,512 Total liabilities assumed 852,400 Net assets acquired $ 360,081 Cash paid $ 284,984 Fair value of common stock issued 34,862 Total consideration paid $ 319,846 Purchase price payable to SinoPac 34,267 Total consideration $ 354,113 Gain from acquisition $ 5,968 The table above reflects net purchase price adjustments of $340,000 March 31, 2018. The purchase price allocations reflected in the table above are preliminary for up to 12 months after the acquisition date and subject to revision as more detailed analyses are completed and additional information about fair value of assets and liabilities becomes available.

Note 5 - Earnings Per Share

Note 5 - Earnings Per Share	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Earnings Per Share [Text Block]	5 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 and restricted stock units with anti-dilutive effect were not Three months ended March 31, (Dollars in thousands, except share and per share data) 2018 2017 Net income $ 63,816 $ 48,941 Weighted-average shares: Basic weighted-average number of common shares outstanding 81,123,380 79,703,593 Dilutive effect of weighted-average outstanding common share equivalents Warrants 295,453 416,607 Options - 33,888 Restricted stock units 261,612 259,090 Diluted weighted-average number of common shares outstanding 81,680,445 80,413,178 Average stock options and restricted stock units with anti-dilutive effect 38,906 19,900 Earnings per common share: Basic $ 0.79 $ 0.61 Diluted $ 0.78 $ 0.61

Note 6 - Stock-based Compensati

Note 6 - Stock-based Compensation	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	6 Stock-Based Compensation Under the Company’s equity incentive plans, directors and eligible employees may March 31, 2018, no There were 35,880 18,040 first March 31, 2018 2017, $838,000 35,880 $23.37 $718,000 first March 31, 2018 $422,000 $262,000 first March 31, 2017. The Company granted restricted stock units for 122,674 $43.50 first 2018. 87,781 $38.59 2017. In December 2013, 2014 2016 December 2016, December 2016. December 2014, 60,456 57,642 seven December 2015, 61,209 57,409 seven December 2016, 30,319 58,241 29,119 seven December 2017, 23,556 22,377 six March 2018, 55,455 six three The following table presents restricted stock unit activity during the three March 31, 2018: Units Balance at December 31, 2017 561,610 Granted 178,129 Distributed (109,454 ) Forfeited (4,010 ) Balance at March 31, 2018 626,275 The compensation expense recorded for restricted stock units was $1.5 three March 31, 2018, $1.2 $15.1 March 31, 2018 2.3 As of March 31, 2018, 2,608,672 2005 Tax benefit from share-based payment arrangements of $0.7 first 2018 $2.6

Note 7 - Investment Securities

Note 7 - Investment Securities	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	7 Securities available-for-sale were $1.2 March 31, 2018, $1.3 December 31, 2017. The following tables reflect the amortized cost, gross unrealized gains, gross unrealized losses, and fair value of securities available-for-sale as of March 31, 2018, December 31, 2017: March 31, 2018 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Debt Securities Available-for-Sale U.S. treasury securities $ 124,842 $ - $ 247 $ 124,595 U.S. government agency entities 8,794 - 99 8,695 U.S. government sponsored entities 400,000 - 14,080 385,920 State and municipal securities 924 20 904 Mortgage-backed securities 655,327 226 17,194 638,359 Collateralized mortgage obligations 1,398 - 27 1,371 Corporate debt securities 80,006 1,280 25 81,261 Total $ 1,271,291 $ 1,506 $ 31,692 $ 1,241,105 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ 249,877 $ - $ 357 $ 249,520 U.S. government agency entities 9,047 11 70 8,988 U.S. government sponsored entities 400,000 - 9,664 390,336 State and municipal securities 1,944 - 30 1,914 Mortgage-backed securities 577,987 241 6,259 571,969 Collateralized mortgage obligations 1,533 - 17 1,516 Corporate debt securities 80,007 1,291 17 81,281 Mutual funds 6,500 - 270 6,230 Preferred stock of government sponsored entities 5,842 4,260 - 10,102 Other equity securities 3,608 8,162 - 11,770 Total $ 1,336,345 $ 13,965 $ 16,684 $ 1,333,626 The amortized cost and fair value of investment securities as of March 31, 2018, may may Securities Available-For-Sale Amortized cost Fair value (In thousands) Due in one year or less $ 140,165 $ 139,922 Due after one year through five years 466,090 453,280 Due after five years through ten years 5,783 5,624 Due after ten years 659,253 642,279 Total $ 1,271,291 $ 1,241,105 There were no first 2018 first 2017. $22.9 $15.4 three March 31, 2018 2017, no first 2018 $99.5 first 2017. $151.0 three March 31, 2018 $70.0 no three March 31, 2018, $438,000 no first 2018 $28,000 first 2017. The adoption of ASU 2016 01 $8.6 January 1, 2018. March 31, 2018, $3.8 March 31, 2018. $24.2 March 31, 2018, $28.1 December 31, 2017. The tables below show the fair value and unrealized losses of the temporarily impaired securities in our investment securities portfolio as of March 31, 2018, December 31, 2017: March 31, 2018 Temporarily impaired securities Less than 12 months 12 months or longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) Debt Securities Available-for-Sale U.S. treasury securities $ 74,829 $ 19 $ 49,766 $ 228 $ 124,595 $ 247 U.S. government agency entities 8,695 99 - - 8,695 99 U.S. government sponsored entities - - 385,920 14,080 385,920 14,080 State and municipal securities 903 20 - - 903 20 Mortgage-backed securities 437,818 11,042 167,958 6,152 605,776 17,194 Collateralized mortgage obligations 1,371 27 - - 1,371 27 Corporate debt securities 5,003 25 - - 5,003 25 Total debt securities $ 528,619 $ 11,232 $ 603,644 $ 20,460 $ 1,132,263 $ 31,692 Equity Securities Preferred stock of government sponsored entities 6,691 3,411 - - 6,691 3,411 Mutual funds - - 6,129 371 6,129 371 Other equity securities 11,334 436 - - 11,334 436 Total equity securities $ 18,025 $ 3,847 $ 6,129 $ 371 $ 24,154 $ 4,218 December 31, 2017 Temporarily impaired securities Less than 12 months 12 months or longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ 199,823 $ 62 $ 49,697 $ 295 $ 249,520 $ 357 U.S. government agency entities 5,711 70 - - 5,711 70 U.S. government sponsored entities - - 390,336 9,664 390,336 9,664 State and municipal securities 1,914 30 - - 1,914 30 Mortgage-backed securities 342,436 3,147 178,617 3,112 521,053 6,259 Collateralized mortgage obligations 1,516 17 - - 1,516 17 Corporate debt securities 5,015 17 - - 5,015 17 Mutual funds - - 6,230 270 6,230 270 Total $ 556,415 $ 3,343 $ 624,880 $ 13,341 $ 1,181,295 $ 16,684 As of March 31, 2018, $31.7 not, no no not Investment securities having a carrying value of $231.0 March 31, 2018, $272.2 December 31, 2017,

Note 8 - Loans

Note 8 - Loans	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	8 . Loans Most of the Company’s business activities are with customers located in the high-density Asian-populated 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 The types of loans in the Company’s condensed consolidated balance sheets as of March 31, 2018, December 31, 2017, March 31, 2018 December 31, 2017 (In thousands) Commercial loans $ 2,436,421 $ 2,461,266 Residential mortgage loans 3,198,750 3,062,050 Commercial mortgage loans 6,610,254 6,482,695 Real estate construction loans 587,927 678,805 Equity lines 176,714 180,304 Installment & other loans 4,473 5,170 Gross loans $ 13,014,539 $ 12,870,290 Allowance for loan losses (122,084 ) (123,279 ) Unamortized deferred loan fees (3,289 ) (3,245 ) Total loans, net $ 12,889,166 $ 12,743,766 Loans held for sale $ - $ 8,000 As of March 31, 2018, $132.1 $49.3 $82.8 December 31, 2017, $117.4 $48.8 $68.6 6.4% March 31, 2018, 7.2% December 31, 2017, 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 Three months ended March 31, March 31, 2018 2017 2018 2017 Commercial loans $ 45,183 $ 23,335 $ 334 $ 83 Real estate construction loans 8,137 16,930 - 340 Commercial mortgage loans 58,598 61,405 644 445 Residential mortgage loans and equity lines 13,709 16,543 100 132 Total impaired loans $ 125,627 $ 118,213 $ 1,078 $ 1,000 The following table presents impaired loans and the related allowance for loan losses as of the dates indicated: Impaired Loans March 31, 2018 December 31, 2017 Unpaid Principal Balance Recorded Investment Allowance Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance Commercial loans $ 45,698 $ 44,680 $ - $ 43,483 $ 42,702 $ - Real estate construction loans 8,821 8,113 - 8,821 8,185 - Commercial mortgage loans 44,486 37,471 - 37,825 31,029 - Residential mortgage loans and equity lines 6,377 6,377 - 1,301 1,301 - Subtotal $ 105,382 $ 96,641 $ - $ 91,430 $ 83,217 $ - With allocated allowance Commercial loans $ 258 $ 231 $ 11 $ 891 $ 793 $ 43 Commercial mortgage loans 27,315 27,276 1,145 21,733 21,635 1,738 Residential mortgage loans and equity lines 9,091 7,965 346 13,022 11,708 353 Subtotal $ 36,664 $ 35,472 $ 1,502 $ 35,646 $ 34,136 $ 2,134 Total impaired loans $ 142,046 $ 132,113 $ 1,502 $ 127,076 $ 117,353 $ 2,134 The following tables present the aging of the loan portfolio by type as of March 31, 2018, December 31, 2017: March 31, 2018 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 $ 15,571 $ 146 $ - $ 15,916 $ 31,633 $ 2,404,788 $ 2,436,421 Real estate construction loans 920 - - 8,113 9,033 578,894 587,927 Commercial mortgage loans 26,015 - - 17,780 43,795 6,566,459 6,610,254 Residential mortgage loans and equity lines 4,094 - - 7,519 11,613 3,363,851 3,375,464 Installment and other loans 170 95 - - 265 4,208 4,473 Total loans $ 46,770 $ 241 $ - $ 49,328 $ 96,339 $ 12,918,200 $ 13,014,539 December 31, 2017 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 $ 11,079 $ 5,192 $ - $ 14,296 $ 30,567 $ 2,430,699 $ 2,461,266 Real estate construction loans 3,028 - - 8,185 11,213 667,592 678,805 Commercial mortgage loans 17,573 5,602 - 19,820 42,995 6,439,700 6,482,695 Residential mortgage loans and equity lines 6,613 732 - 6,486 13,831 3,228,523 3,242,354 Installment and other loans 103 - - - 103 5,067 5,170 Total loans $ 38,396 $ 11,526 $ - $ 48,787 $ 98,709 $ 12,771,581 $ 12,870,290 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. 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. 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 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 As of March 31, 2018, $82.8 $31.2 $68.6 $33.4 December 31, 2017. $1.2 $75,000 March 31, 2018, $1.9 $83,000 December 31, 2017. first March 31, 2018 2017, March 31, 2018 2017, first March 31, 2018 2017: Three months ended March 31, 2018 March 31, 2018 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Charge-offs Specific Reserve (Dollars in thousands) Commercial loans 3 $ 2,463 $ 2,463 $ - $ - Commercial mortgage loans 6 14,287 14,287 - 134 Residential mortgage loans and equity lines 2 801 801 - 8 Total 11 $ 17,551 $ 17,551 $ - $ 142 Three months ended March 31, 2017 March 31, 2017 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Charge-offs Specific Reserve (Dollars in thousands) Real estate construction loans 2 $ 27,683 $ 27,683 $ - $ - Total 2 $ 27,683 $ 27,683 $ - $ - Modifications of the loan terms during the first 2018 three twelve We expect that the TDRs on accruing status as of March 31, 2018, March 31, 2018, December 31, 2017, ` March 31, 2018 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 28,995 $ - $ - $ 28,995 Commercial mortgage loans 19,609 7,499 19,859 46,967 Residential mortgage loans 3,744 333 2,746 6,823 Total accruing TDRs $ 52,348 $ 7,832 $ 22,605 $ 82,785 March 31, 2018 Non-accrual TDRs Payment Deferral Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 14,568 $ - $ 14,568 Commercial mortgage loans 4,011 10,871 14,882 Residential mortgage loans 1,594 151 1,745 Total non-accrual TDRs $ 20,173 $ 11,022 $ 31,195 December 31, 2017 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 29,199 $ - $ - $ 29,199 Commercial mortgage loans 11,504 5,871 15,468 32,843 Residential mortgage loans 3,416 335 2,772 6,523 Total accruing TDRs $ 44,119 $ 6,206 $ 18,240 $ 68,565 December 31, 2017 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 12,944 $ - $ - $ 12,944 Commercial mortgage loans 6,231 1,677 11,113 19,021 Residential mortgage loans 1,297 - 154 1,451 Total non-accrual TDRs $ 20,472 $ 1,677 $ 11,267 $ 33,416 The activity within our TDRs for the periods indicated is shown below: Three months ended March 31, Accruing TDRs 2018 2017 (In thousands) Beginning balance $ 68,566 $ 65,393 New restructurings 17,320 27,683 Restructured loans restored to accrual status 2,318 - Payments (3,891 ) (4,595 ) Restructured loans placed on non-accrual status (1,528 ) (5,822 ) Expiration of loan concession upon renewal - (2,240 ) Ending balance $ 82,785 $ 80,419 Three months ended March 31, Non-accrual TDRs 2018 2017 (In thousands) Beginning balance $ 33,415 $ 29,722 New restructurings 231 - Restructured loans placed on non-accrual status 1,528 5,822 Charge-offs - (1,049 ) Payments (1,661 ) (990 ) Foreclosures - (726 ) Restructured loans restored to accrual status (2,318 ) - Ending balance $ 31,195 $ 32,779 The Company considers a loan to be in payment default once it is 60 90 not twelve March 31, 2018. 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, 2018, no 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 – ● Special Mention – not may ● Substandard – may not not ● Doubtful – may ● Loss – no The following tables present the loan portfolio by risk rating as of March 31, 2018, December 31, 2017: March 31, 2018 Pass/Watch Special Mention Substandard Doubtful Total (In thousands) Commercial loans $ 2,224,463 $ 139,985 $ 71,973 $ - $ 2,436,421 Real estate construction loans 522,983 55,911 9,033 - 587,927 Commercial mortgage loans 6,202,696 292,647 114,911 - 6,610,254 Residential mortgage loans and equity lines 3,365,642 - 9,822 - 3,375,464 Installment and other loans 4,378 - 95 - 4,473 Total gross loans $ 12,320,162 $ 488,543 $ 205,834 $ - $ 13,014,539 Loans held for sale $ - $ - $ - $ - $ - December 31, 2017 Pass/Watch Special Mention Substandard Doubtful Total (In thousands) Commercial loans $ 2,281,698 $ 118,056 $ 61,503 $ 9 $ 2,461,266 Real estate construction loans 616,411 54,209 8,185 - 678,805 Commercial mortgage loans 6,004,258 308,924 169,513 - 6,482,695 Residential mortgage loans and equity lines 3,232,606 - 9,748 - 3,242,354 Installment and other loans 5,170 - - - 5,170 Total gross loans $ 12,140,143 $ 481,189 $ 248,949 $ 9 $ 12,870,290 Loans held for sale $ - $ - $ 8,000 $ - $ 8,000 The following table presents the balance in the allowance for loan losses by portfolio segment and based on impairment method as of March 31, 2018, December 31, 2017: Real Estate Commercial Residential Commercial Construction Mortgage Mortgage Loans Installment and Loans Loans Loans and Equity Lines Other Loans Total (In thousands) March 31, 2018 Loans individually evaluated for impairment Allowance $ 11 $ - $ 1,145 $ 346 $ - $ 1,502 Balance $ 44,911 $ 8,113 $ 64,747 $ 14,342 $ - $ 132,113 Loans collectively evaluated for impairment Allowance $ 54,586 $ 21,864 $ 33,085 $ 11,026 $ 21 $ 120,582 Balance $ 2,391,510 $ 579,814 $ 6,545,507 $ 3,361,122 $ 4,473 $ 12,882,426 Total allowance $ 54,597 $ 21,864 $ 34,230 $ 11,372 $ 21 $ 122,084 Total balance $ 2,436,421 $ 587,927 $ 6,610,254 $ 3,375,464 $ 4,473 $ 13,014,539 December 31, 2017 Loans individually evaluated for impairment Allowance $ 43 $ - $ 1,738 $ 353 $ - $ 2,134 Balance $ 43,495 $ 8,185 $ 52,664 $ 13,009 $ - $ 117,353 Loans collectively evaluated for impairment Allowance $ 49,753 $ 24,838 $ 35,872 $ 10,660 $ 22 $ 121,145 Balance $ 2,417,771 $ 670,620 $ 6,430,031 $ 3,229,345 $ 5,170 $ 12,752,937 Total allowance $ 49,796 $ 24,838 $ 37,610 $ 11,013 $ 22 $ 123,279 Total balance $ 2,461,266 $ 678,805 $ 6,482,695 $ 3,242,354 $ 5,170 $ 12,870,290 The following tables detail activity in the allowance for loan losses by portfolio segment for the three March 31, 2018, March 31, 2017. one not Real Estate Commercial Residential Installment Commercial Construction Mortgage Mortgage Loans and Other Loans Loans Loans and Equity Lines Loans Total (In thousands) 2018 Beginning Balance $ 49,796 $ 24,838 $ 37,610 $ 11,013 $ 22 $ 123,279 Provision/(credit) for possible credit losses 3,907 (3,018 ) (4,163 ) 275 (1 ) (3,000 ) Charge-offs (19 ) - - - - (19 ) Recoveries 913 44 783 84 - 1,824 Net recoveries 894 44 783 84 - 1,805 March 31, 2018 Ending Balance $ 54,597 $ 21,864 $ 34,230 $ 11,372 $ 21 $ 122,084 Reserve for impaired loans $ 11 $ - $ 1,145 $ 346 $ - $ 1,502 Reserve for non-impaired loans $ 54,586 $ 21,864 $ 33,085 $ 11,026 $ 21 $ 120,582 Reserve for off-balance sheet credit commitments $ 2,747 $ 1,515 $ 138 $ 182 $ 6 $ 4,588 2017 Beginning Balance $ 49,203 $ 23,268 $ 34,864 $ 11,620 $ 11 $ 118,966 (Credit)/provision for possible credit losses (1,214 ) (3,549 ) 1,362 898 3 (2,500 ) Charge-offs (1,204 ) - (555 ) - - (1,759 ) Recoveries 491 49 289 8 - 837 Net (charge-offs)/recoveries (713 ) 49 (266 ) 8 - (922 ) March 31, 2017 Ending Balance $ 47,276 $ 19,768 $ 35,960 $ 12,526 $ 14 $ 115,544 Reserve for impaired loans $ 1,062 $ - $ 818 $ 395 $ - $ 2,275 Reserve for non-impaired loans $ 46,214 $ 19,768 $ 35,142 $ 12,131 $ 14 $ 113,269 Reserve for off-balance sheet credit commitments $ 2,243 $ 909 $ 120 $ 146 $ 6 $ 3,424

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	9 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 not may not may 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

Note 10 - Borrowed Funds

Note 10 - Borrowed Funds	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Debt Disclosure [Text Block]	10 Borrowed Funds Securities Sold Under Agreements to Repurchase. $100 2.86% March 31, 2018, $100 2.86% December 31, 2017. two $50.0 June 2018 $50.0 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 $107.6 March 31, 2018, $108.4 December 31, 2017. Borrowing from the Federal Home Loan Bank ("FHLB"). March 31, 2018, $250 1.87% $325 1.41% December 31, 2017. March 31, 2018, $75 1.53% $105 1.41% December 31, 2017. March 31, 2018, $15 April 2018, $5 July 2018, $5 October 2018, $50 December 2019. Other Borrowing. $100 November 14, 2017, 30 $35.2 three 150 2.8% 50%, 30%, 20% three March 31, 2018, $35.7 $35.2 December 31, 2017. Long-term Debt . October 12, 2017, $75.0 one 175 March 31, 2018, 3.438% 3.125% December 31, 2017. $4.7 December 31, 2018, October 12, 2020.

Note 11 - Income Taxes

Note 11 - Income Taxes	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Income Tax Disclosure [Text Block]	11 Income Taxes The effective tax rate for the first 2018 22.8% 29.5% first 2017. December 22, 2017, 35% 21% January 1, 2018. As of December 31, 2017, $7.2 The Company’s tax returns are open for audit by the Internal Revenue Service back to 2014 2013. It is reasonably possible that unrecognized tax benefits could change significantly over the next twelve not

Note 12 - Fair Value Measuremen

Note 12 - Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]	1 2 . Fair Value Measurement s The Company adopted ASC Topic 820 January 1, 2008, ● Level 1 ● Level 2 not not ● Level 3 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 1 2 Warrants 3 Foreign Exchange Contracts 2 Interest Rate Swaps third 2 Assets measured at estimated fair value on a non-recurring basis: Certain assets or liabilities are required to be measured at estimated fair value on a nonrecurring basis subsequent to initial recognition. Generally, these adjustments are the result of lower-of-cost-or-fair value or other impairment write-downs of individual assets. In determining the estimated fair values during the period, the Company determined that substantially all the changes in estimated fair value were due to declines in market conditions versus instrument specific credit risk. For the three March 31, 2018 December 31, 2017, no 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, 2018, December 31, 2017: March 31, 2018 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value (In thousands) Assets Debt securities available-for-sale U.S. Treasury securities $ 124,595 $ - $ - $ 124,595 U.S. government agencies - 8,695 - 8,695 U.S. government sponsored entities - 385,920 - 385,920 State and municipal securities - 904 - 904 Mortgage-backed securities - 638,359 - 638,359 Collateralized mortgage obligations - 1,371 - 1,371 Corporate debt securities - 81,261 - 81,261 Total debt securities available-for-sale 124,595 1,116,510 - 1,241,105 Equity securities Preferred stock of government sponsored entities 6,691 - - 6,691 Mutual funds 6,129 - - 6,129 Other equity securities 11,334 - - 11,334 Total equity securities 24,154 - - 24,154 Warrants - - 195 195 Foreign exchange contracts - 1,539 - 1,539 Interest rate swaps - 11,674 - 11,674 Total assets $ 148,749 $ 1,129,723 $ 195 $ 1,278,667 Liabilities Option contracts $ - $ 3 $ - $ 3 Foreign exchange contracts - 924 - 924 Total liabilities $ - $ 927 $ - $ 927 December 31, 2017 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 $ 249,520 $ - $ - $ 249,520 U.S. government agency entities - 8,988 - 8,988 U.S. government sponsored entities - 390,336 - 390,336 State and municipal securities - 1,914 - 1,914 Mortgage-backed securities - 571,969 - 571,969 Collateralized mortgage obligations - 1,516 - 1,516 Corporate debt securities - 81,281 - 81,281 Mutual funds 6,230 - - 6,230 Preferred stock of government sponsored entities 10,102 - - 10,102 Other equity securities 11,770 - - 11,770 Total securities available-for-sale 277,622 1,056,004 - 1,333,626 Warrants - - 91 91 Interest rate swaps - 5,218 - 5,218 Foreign exchange contracts - 1,832 - 1,832 Total assets $ 277,622 $ 1,063,054 $ 91 $ 1,340,767 Liabilities Option contracts $ - $ 9 $ - $ 9 Interest rate swaps - 2,699 - 2,699 Foreign exchange contracts - 453 - 453 Total liabilities $ - $ 3,161 $ - $ 3,161 The Company measured the fair value of its warrants on a recurring basis using significant unobservable inputs. The fair value of warrants was $195,000 March 31, 2018, $91,000 December 31, 2017. first 2018. 1 6 2.30% 2.94%, 8.99% 12.73%. For financial assets measured at fair value on a nonrecurring basis that were still reflected in the condensed consolidated balance sheet as of March 31, 2018, March 31, 2018, December 31, 2017, As of March 31, 2018 Total Losses Fair Value Measurements Using Total at For the Three Months Ended Level 1 Level 2 Level 3 Fair Value March 31, 2018 March 31, 2017 (In thousands) Assets Impaired loans by type: Commercial loans $ - $ - $ 220 $ 220 $ - $ 20 Commercial mortgage loans - - 26,131 26,131 - 250 Residential mortgage loans and equity lines - - 7,619 7,619 - - Total impaired loans - - 33,970 33,970 - 270 Other real estate owned (1) - 5,478 4,343 9,821 33 37 Investments in venture capital and private company stock - - 2,430 2,430 173 187 Total assets $ - $ 5,478 $ 40,743 $ 46,221 $ 206 $ 494 ( 1 $9.3 As of December 31, 2017 Total Losses Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2017 December 31, 2016 (In thousands) Assets Impaired loans by type: Commercial loans $ - $ - $ 18,097 $ 18,097 $ 25 $ 322 Commercial mortgage loans - - 31,459 31,459 - - Residential mortgage loans and equity lines - - 11,355 11,355 - - Total impaired loans - - 60,911 60,911 25 322 Other real estate owned (1) - 5,677 4,322 9,999 457 9 Investments in venture capital and private company stock - - 2,583 2,583 392 976 Total assets $ - $ 5,677 $ 67,816 $ 73,493 $ 874 $ 1,307 ( 1 $9.4 The significant unobservable (Level 3 twelve 55% 65% 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% 6%

Note 13 - Fair Value of Financi

Note 13 - Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Fair Value Disclosures [Text Block]	1 3 . Fair Value of Financial Instruments The Company uses the following methods and assumptions to estimate the fair value of each class of financial instruments. Cash and Cash Equivalents. 1 Short-term Investments and Interest Bearing Deposits. 1 Securities Purchased under Agreements to Resell . 2 Securities. not 1 2 Loans H eld for S ale third Loans. third 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 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 2 3 FHLB Stock. Deposit Liabilities. 3 Securities Sold under Agreements to Repurchase. 2 Advances from FHLB. 2 Other Borrowings. 3 Long-term D ebt. 2 Currency Option and Foreign Exchange Contracts 2 Interest Rate Swaps third 2 Off-Balance-Sheet Financial Instruments. 3 Fair value was estimated in accordance with ASC Topic 825. not one no The following table presents the carrying and notional amounts and estimated fair value of financial instruments as of March 31, 2018, December 31, 2017: March 31, 2018 December 31, 2017 Carrying Carrying Amount Fair Value Amount Fair Value (In thousands) Financial Assets Cash and due from banks $ 199,713 $ 199,713 $ 247,056 $ 247,056 Short-term investments and interest bearing deposits 524,012 524,012 292,745 292,745 Securities available-for-sale 1,241,105 1,241,105 1,333,626 1,333,626 Equity securities 24,154 24,154 - - Loans held for sale - - 8,000 8,000 Loans, net (1) 12,889,166 12,908,391 12,743,766 12,663,049 Investment in Federal Home Loan Bank stock 17,250 17,250 23,085 23,085 Warrants 195 195 91 91 Notional Notional Amount Fair Value Amount Fair Value Foreign exchange contracts $ 78,021 $ 1,539 $ 108,530 $ 1,832 Interest rate swaps 681,055 11,674 514,159 5,218 Financial Liabilities Carrying Carrying Amount Fair Value Amount Fair Value Deposits $ 13,012,251 $ 13,032,828 $ 12,689,893 $ 12,700,674 Securities sold under agreements to repurchase 100,000 99,783 100,000 100,163 Advances from Federal Home Loan Bank 325,000 324,548 430,000 429,482 Other borrowings 53,178 51,367 52,885 51,075 Long-term debt 194,136 141,266 194,136 141,865 Notional Notional Amount Fair Value Amount Fair Value Option contracts $ 1,028 $ 3 $ 1,014 $ 9 Foreign exchange contracts 57,648 924 32,127 453 Interest rate swaps - - 145,399 2,699 Notional Notional Amount Fair Value Amount Fair Value Off-Balance Sheet Financial Instruments Commitments to extend credit $ 2,487,710 $ (7,711 ) $ 2,366,368 $ (7,224 ) Standby letters of credit 142,674 (1,418 ) 140,814 (1,805 ) Other letters of credit 25,885 (13 ) 27,353 (52 ) Bill of lading guarantees 24 (0 ) 24 (0 ) ( 1 2016 01, March 31, 2018 using an exit price notion. The fair value of loans as of December 31, 2017 The following tables present the level in the fair value hierarchy for the estimated fair values of financial instruments as of March 31, 2018, December 31, 2017. As of March 31, 2018 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 199,713 $ 199,713 $ - $ - Short-term investments and interest bearing deposits 524,012 524,012 - - Debt securities available-for-sale 1,241,105 124,595 1,116,510 - Equity securities 24,154 24,154 - - Loans, net (1) 12,908,391 - - 12,908,391 Investment in Federal Home Loan Bank stock 17,250 - 17,250 - Warrants 195 - - 195 Financial Liabilities Deposits 13,032,828 - - 13,032,828 Securities sold under agreement to repurchase 99,783 - 99,783 - Advances from Federal Home Loan Bank 324,548 - 324,548 - Other borrowings 51,367 - - 51,367 Long-term debt 141,266 - 141,266 - As of December 31, 2017 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 247,056 $ 247,056 $ - $ - Short-term investments and interest bearing deposits 292,745 292,745 - - Securities available-for-sale 1,333,626 277,622 1,056,004 - Loans held-for-sale 8,000 - - 8,000 Loans, net (1) 12,663,049 - - 12,663,049 Investment in Federal Home Loan Bank stock 23,085 - 23,085 - Warrants 91 - - 91 Financial Liabilities Deposits 12,700,674 - - 12,700,674 Securities sold under agreement to repurchase 100,163 - 100,163 - Advances from Federal Home Loan Bank 429,482 - 429,482 - Other borrowings 51,075 - - 51,075 Long-term debt 141,865 - 141,865 - ( 1 2016 01, March 31, 2018 using an exit price notion. The fair value of loans as of December 31, 2017

Note 14 - Goodwill and Goodwill

Note 14 - Goodwill and Goodwill Impairment	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	1 4 . 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 As of March 31, 2018, no

Note 15 - Financial Derivatives

Note 15 - Financial Derivatives	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	1 5 . Financial Derivatives It is the policy of the Company not may may The Company follows ASC Topic 815 not third not In May 2014, $119.1 ten $119.1 five ten June 2014 June 2024, three 2.61% three 2.17%. March 31, 2018, $119.1 $428,000, $1.9 March 31, 2017. $274,000 three March 31, 2018, $479,000 March 31, 2018, 2017, not As of March 31, 2018, $561.9 two ten 4.6% one 279 4.5%. March 31, 2018, March 31, 2017, $561.9 $424.2 $11.1 $1.9 $229,000 three March 31, 2018, $713,000 March 31, 2018, 2017, not 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 $1.3 March 31, 2018 $4.5 December 31, 2017. 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 March 31, 2018, $1.0 $3,000. March 31, 2018, $78.0 $1.5 $57.6 $924,000 March 31, 2018. December 31, 2017, $1.0 $9,000. December 31, 2017, $108.5 $1.8 $32.1 $453,000 December 31, 2017.

Note 16 - Balance Sheet Offsett

Note 16 - Balance Sheet Offsetting	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	1 6 . Balance Sheet Offsetting Certain financial instruments, including resell and repurchase agreements, securities lending arrangements and derivatives, may may not Financial instruments that are eligible for offset in the condensed consolidated balance sheets, as of March 31, 2018, December 31, 2017, 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, 2018 Assets: Derivatives $ 11,674 $ - $ 11,674 $ - $ - $ 11,674 Liabilities: Securities sold under agreements to repurchase $ 100,000 $ - $ 100,000 $ - $ (100,000 ) $ - December 31, 2017 Assets: Derivatives $ 5,218 $ - $ 5,218 $ - $ - $ 5,218 Liabilities: Securities sold under agreements to repurchase $ 100,000 $ - $ 100,000 $ - $ (100,000 ) $ - Derivatives $ 2,699 $ - $ 2,699 $ - $ (2,699 ) $ -

Note 17 - Revenue from Contract

Note 17 - Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	17. Revenue from Contracts with Customers On January 1, 2018, 2014 09, 606 606, 606 not January 1, 2018. not no The following is a summary of revenue from contracts with customers that are in-scope and not 606: March 31, 2018 March 31, 2017 (In thousands) Non-interest income, in-scope (1) : Fees and service charges on deposit accounts $ 2,318 $ 2,512 Wealth management fees 1,301 979 Other service fees (2) 3,248 3,169 Total noninterest income 6,867 6,660 Noninterest income, not in-scope (3) (1,557 ) 58 Total noninterest income $ 5,310 $ 6,718 ( 1 There were no 606. ( 2 Other service fees comprise of fees related to letters of credit, wire fees, fees on foreign exchange transactions and other immaterial individual revenue streams. ( 3 These amounts primarily represent revenue from contracts with customers that are out of the scope of ASC 606. The major revenue streams by fee type that are within the scope of ASC 606 Fees and Services Charges on Deposit Accounts Fees and service charges on deposit accounts include charges for analysis, overdraft, cash checking, ATM, and safe deposit activities executed by our deposit clients, as well as interchange income earned through card payment networks for the acceptance of card based transactions. Fees earned from our deposit clients are governed by contracts which provide for overall custody and access to deposited funds and other related services, and can be terminated at will by either party. Fees received from deposit clients for the various deposit activities are recognized as revenue once the performance obligations are met. The adoption of ASU 2014 09 no Wealth Management Fees The Company employs financial consultants to provide investment planning services for customers including wealth management services, asset allocation strategies, portfolio analysis and monitoring, investment strategies, and risk management strategies. The fees the Company earns are variable and are generally received monthly. The Company recognizes revenue for the services performed at quarter end based on actual transaction details received from the broker dealer the Company engages. Practical Expedients and Exemptions The Company applies the practical expedient in ASC 606 10 50 14 not one one In addition, given the short term nature of the contracts, the Company also applies the practical expedient in ASC 606 10 32 18 not one

Note 18 - Stockholders' Equity

Note 18 - Stockholders' Equity	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	18 . Stockholders’ Equity Total equity was $2.0 March 31, 2018, $36.5 $1.97 December 31, 2017, $63.8 $19.5 $9.3 The U.S. Treasury received warrants to purchase common stock of 1,846,374 $20.96 December 31, 2017, $20.41 1.03%. March 31, 2018, 578,238 943,327 December 31, 2017. Activity in accumulated other comprehensive income, net of tax, and reclassification out of accumulated other comprehensive income for the three March 31, 2018, March 31, 2017, Three months ended March 31, 2018 Three months ended March 31, 2017 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 $ (1,060 ) $ (1,545 ) Cash flow hedge derivatives (1,451 ) (2,170 ) Total $ (2,511 ) $ (3,715 ) Reclassification adjustment for stranded tax effects of Tax Cuts and Jobs Act (1) Securities available-for-sale - 200 (200 ) - - - Cash flow hedge derivatives - 315 (315 ) - - - Total - 515 (515 ) - - - Reclassification adjustment for equity securities (2) Equity securities (12,151 ) (3,592 ) (8,559 ) - - - Net unrealized (losses)/gains arising during the period Securities available-for-sale $ (16,346 ) $ (4,832 ) $ (11,514 ) $ (856 ) $ (360 ) $ (496 ) Cash flow hedge derivatives 3,113 920 2,193 516 217 299 Total (13,233 ) (3,912 ) (9,321 ) (340 ) (143 ) (197 ) Reclassification adjustment for net losses in net income Securities available-for-sale - - - 466 196 270 Cash flow hedge derivatives - - - - - - Total - - - 466 196 270 Total other comprehensive (loss)/income Securities available-for-sale (16,346 ) (4,832 ) (11,514 ) (390 ) (164 ) (226 ) Cash flow hedge derivatives 3,113 920 2,193 516 217 299 Total $ (13,233 ) $ (3,912 ) $ (9,321 ) $ 126 $ 53 $ 73 Ending balance, (loss)/gain, net of tax Securities available-for-sale $ (21,333 ) $ (1,771 ) Cash flow hedge derivatives 427 (1,871 ) Total $ (20,906 ) $ (3,642 ) ( 1 January 1, 2018 2018 2. ( 2 January 1, 2018 2016 1.

Note 19 - Stock Repurchase Prog

Note 19 - Stock Repurchase Program	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Treasury Stock [Text Block]	19 Stock Repurchase Program On February 1, 2016, $45.0 2016, 1,380,578 $37.5 $27.13 February 2016 not February 2016 2017 three March 31, 2018. March 31, 2018, December 31, 2017, may $7.5 February 2016

Note 20 - Subsequent Events

Note 20 - Subsequent Events	3 Months Ended
	Mar. 31, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	20. The Company has evaluated the effect of events that have occurred subsequent to March 31, 2018, no

Note 4 - Acquisition (Tables)

Note 4 - Acquisition (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	SinoPac Bancorp Assets acquired: Cash and cash equivalents $ 166,932 Short-term investments 122,000 Securities available-for-sale 88,044 FHLB and FRB stock 19,890 Loans 705,792 Premises and equipment 6,239 Cash surrender value of life insurance 46,083 Deferred tax assets, net 40,690 Core deposit intangible 6,122 Accrued interest receivable and other assets 10,689 Total assets acquired 1,212,481 Liabilities assumed: Deposits 813,888 Advances from the Federal Home Loan Bank 30,000 Accrued interest payable and other liabilities 8,512 Total liabilities assumed 852,400 Net assets acquired $ 360,081 Cash paid $ 284,984 Fair value of common stock issued 34,862 Total consideration paid $ 319,846 Purchase price payable to SinoPac 34,267 Total consideration $ 354,113 Gain from acquisition $ 5,968

Note 5 - Earnings Per Share (Ta

Note 5 - Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
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) 2018 2017 Net income $ 63,816 $ 48,941 Weighted-average shares: Basic weighted-average number of common shares outstanding 81,123,380 79,703,593 Dilutive effect of weighted-average outstanding common share equivalents Warrants 295,453 416,607 Options - 33,888 Restricted stock units 261,612 259,090 Diluted weighted-average number of common shares outstanding 81,680,445 80,413,178 Average stock options and restricted stock units with anti-dilutive effect 38,906 19,900 Earnings per common share: Basic $ 0.79 $ 0.61 Diluted $ 0.78 $ 0.61

Note 6 - Stock-based Compensa28

Note 6 - Stock-based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	Units Balance at December 31, 2017 561,610 Granted 178,129 Distributed (109,454 ) Forfeited (4,010 ) Balance at March 31, 2018 626,275

Note 7 - Investment Securities

Note 7 - Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	March 31, 2018 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Debt Securities Available-for-Sale U.S. treasury securities $ 124,842 $ - $ 247 $ 124,595 U.S. government agency entities 8,794 - 99 8,695 U.S. government sponsored entities 400,000 - 14,080 385,920 State and municipal securities 924 20 904 Mortgage-backed securities 655,327 226 17,194 638,359 Collateralized mortgage obligations 1,398 - 27 1,371 Corporate debt securities 80,006 1,280 25 81,261 Total $ 1,271,291 $ 1,506 $ 31,692 $ 1,241,105 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ 249,877 $ - $ 357 $ 249,520 U.S. government agency entities 9,047 11 70 8,988 U.S. government sponsored entities 400,000 - 9,664 390,336 State and municipal securities 1,944 - 30 1,914 Mortgage-backed securities 577,987 241 6,259 571,969 Collateralized mortgage obligations 1,533 - 17 1,516 Corporate debt securities 80,007 1,291 17 81,281 Mutual funds 6,500 - 270 6,230 Preferred stock of government sponsored entities 5,842 4,260 - 10,102 Other equity securities 3,608 8,162 - 11,770 Total $ 1,336,345 $ 13,965 $ 16,684 $ 1,333,626
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 $ 140,165 $ 139,922 Due after one year through five years 466,090 453,280 Due after five years through ten years 5,783 5,624 Due after ten years 659,253 642,279 Total $ 1,271,291 $ 1,241,105
Schedule of Unrealized Loss on Investments [Table Text Block]	March 31, 2018 Temporarily impaired securities Less than 12 months 12 months or longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) Debt Securities Available-for-Sale U.S. treasury securities $ 74,829 $ 19 $ 49,766 $ 228 $ 124,595 $ 247 U.S. government agency entities 8,695 99 - - 8,695 99 U.S. government sponsored entities - - 385,920 14,080 385,920 14,080 State and municipal securities 903 20 - - 903 20 Mortgage-backed securities 437,818 11,042 167,958 6,152 605,776 17,194 Collateralized mortgage obligations 1,371 27 - - 1,371 27 Corporate debt securities 5,003 25 - - 5,003 25 Total debt securities $ 528,619 $ 11,232 $ 603,644 $ 20,460 $ 1,132,263 $ 31,692 Equity Securities Preferred stock of government sponsored entities 6,691 3,411 - - 6,691 3,411 Mutual funds - - 6,129 371 6,129 371 Other equity securities 11,334 436 - - 11,334 436 Total equity securities $ 18,025 $ 3,847 $ 6,129 $ 371 $ 24,154 $ 4,218 December 31, 2017 Temporarily impaired securities Less than 12 months 12 months or longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ 199,823 $ 62 $ 49,697 $ 295 $ 249,520 $ 357 U.S. government agency entities 5,711 70 - - 5,711 70 U.S. government sponsored entities - - 390,336 9,664 390,336 9,664 State and municipal securities 1,914 30 - - 1,914 30 Mortgage-backed securities 342,436 3,147 178,617 3,112 521,053 6,259 Collateralized mortgage obligations 1,516 17 - - 1,516 17 Corporate debt securities 5,015 17 - - 5,015 17 Mutual funds - - 6,230 270 6,230 270 Total $ 556,415 $ 3,343 $ 624,880 $ 13,341 $ 1,181,295 $ 16,684

Note 8 - Loans (Tables)

Note 8 - Loans (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	March 31, 2018 December 31, 2017 (In thousands) Commercial loans $ 2,436,421 $ 2,461,266 Residential mortgage loans 3,198,750 3,062,050 Commercial mortgage loans 6,610,254 6,482,695 Real estate construction loans 587,927 678,805 Equity lines 176,714 180,304 Installment & other loans 4,473 5,170 Gross loans $ 13,014,539 $ 12,870,290 Allowance for loan losses (122,084 ) (123,279 ) Unamortized deferred loan fees (3,289 ) (3,245 ) Total loans, net $ 12,889,166 $ 12,743,766 Loans held for sale $ - $ 8,000
Impaired Financing Receivables [Table Text Block]	Impaired Loans Average Recorded Investment Interest Income Recognized Three months ended Three months ended March 31, March 31, 2018 2017 2018 2017 Commercial loans $ 45,183 $ 23,335 $ 334 $ 83 Real estate construction loans 8,137 16,930 - 340 Commercial mortgage loans 58,598 61,405 644 445 Residential mortgage loans and equity lines 13,709 16,543 100 132 Total impaired loans $ 125,627 $ 118,213 $ 1,078 $ 1,000
Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block]	Impaired Loans March 31, 2018 December 31, 2017 Unpaid Principal Balance Recorded Investment Allowance Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance Commercial loans $ 45,698 $ 44,680 $ - $ 43,483 $ 42,702 $ - Real estate construction loans 8,821 8,113 - 8,821 8,185 - Commercial mortgage loans 44,486 37,471 - 37,825 31,029 - Residential mortgage loans and equity lines 6,377 6,377 - 1,301 1,301 - Subtotal $ 105,382 $ 96,641 $ - $ 91,430 $ 83,217 $ - With allocated allowance Commercial loans $ 258 $ 231 $ 11 $ 891 $ 793 $ 43 Commercial mortgage loans 27,315 27,276 1,145 21,733 21,635 1,738 Residential mortgage loans and equity lines 9,091 7,965 346 13,022 11,708 353 Subtotal $ 36,664 $ 35,472 $ 1,502 $ 35,646 $ 34,136 $ 2,134 Total impaired loans $ 142,046 $ 132,113 $ 1,502 $ 127,076 $ 117,353 $ 2,134
Past Due Financing Receivables [Table Text Block]	March 31, 2018 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 $ 15,571 $ 146 $ - $ 15,916 $ 31,633 $ 2,404,788 $ 2,436,421 Real estate construction loans 920 - - 8,113 9,033 578,894 587,927 Commercial mortgage loans 26,015 - - 17,780 43,795 6,566,459 6,610,254 Residential mortgage loans and equity lines 4,094 - - 7,519 11,613 3,363,851 3,375,464 Installment and other loans 170 95 - - 265 4,208 4,473 Total loans $ 46,770 $ 241 $ - $ 49,328 $ 96,339 $ 12,918,200 $ 13,014,539 December 31, 2017 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 $ 11,079 $ 5,192 $ - $ 14,296 $ 30,567 $ 2,430,699 $ 2,461,266 Real estate construction loans 3,028 - - 8,185 11,213 667,592 678,805 Commercial mortgage loans 17,573 5,602 - 19,820 42,995 6,439,700 6,482,695 Residential mortgage loans and equity lines 6,613 732 - 6,486 13,831 3,228,523 3,242,354 Installment and other loans 103 - - - 103 5,067 5,170 Total loans $ 38,396 $ 11,526 $ - $ 48,787 $ 98,709 $ 12,771,581 $ 12,870,290
Schedule Of Troubled Debt Restructurings [Table Text Block]	Three months ended March 31, 2018 March 31, 2018 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Charge-offs Specific Reserve (Dollars in thousands) Commercial loans 3 $ 2,463 $ 2,463 $ - $ - Commercial mortgage loans 6 14,287 14,287 - 134 Residential mortgage loans and equity lines 2 801 801 - 8 Total 11 $ 17,551 $ 17,551 $ - $ 142 Three months ended March 31, 2017 March 31, 2017 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Charge-offs Specific Reserve (Dollars in thousands) Real estate construction loans 2 $ 27,683 $ 27,683 $ - $ - Total 2 $ 27,683 $ 27,683 $ - $ -
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	March 31, 2018 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 28,995 $ - $ - $ 28,995 Commercial mortgage loans 19,609 7,499 19,859 46,967 Residential mortgage loans 3,744 333 2,746 6,823 Total accruing TDRs $ 52,348 $ 7,832 $ 22,605 $ 82,785 December 31, 2017 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 29,199 $ - $ - $ 29,199 Commercial mortgage loans 11,504 5,871 15,468 32,843 Residential mortgage loans 3,416 335 2,772 6,523 Total accruing TDRs $ 44,119 $ 6,206 $ 18,240 $ 68,565
Non Accrual Troubled Debt Restructurings [Table Text Block]	March 31, 2018 Non-accrual TDRs Payment Deferral Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 14,568 $ - $ 14,568 Commercial mortgage loans 4,011 10,871 14,882 Residential mortgage loans 1,594 151 1,745 Total non-accrual TDRs $ 20,173 $ 11,022 $ 31,195 December 31, 2017 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 12,944 $ - $ - $ 12,944 Commercial mortgage loans 6,231 1,677 11,113 19,021 Residential mortgage loans 1,297 - 154 1,451 Total non-accrual TDRs $ 20,472 $ 1,677 $ 11,267 $ 33,416
Activity Within The Troubled Debt Resturings [Table Text Block]	Three months ended March 31, Accruing TDRs 2018 2017 (In thousands) Beginning balance $ 68,566 $ 65,393 New restructurings 17,320 27,683 Restructured loans restored to accrual status 2,318 - Payments (3,891 ) (4,595 ) Restructured loans placed on non-accrual status (1,528 ) (5,822 ) Expiration of loan concession upon renewal - (2,240 ) Ending balance $ 82,785 $ 80,419 Three months ended March 31, Non-accrual TDRs 2018 2017 (In thousands) Beginning balance $ 33,415 $ 29,722 New restructurings 231 - Restructured loans placed on non-accrual status 1,528 5,822 Charge-offs - (1,049 ) Payments (1,661 ) (990 ) Foreclosures - (726 ) Restructured loans restored to accrual status (2,318 ) - Ending balance $ 31,195 $ 32,779
Financing Receivable Credit Quality Indicators [Table Text Block]	March 31, 2018 Pass/Watch Special Mention Substandard Doubtful Total (In thousands) Commercial loans $ 2,224,463 $ 139,985 $ 71,973 $ - $ 2,436,421 Real estate construction loans 522,983 55,911 9,033 - 587,927 Commercial mortgage loans 6,202,696 292,647 114,911 - 6,610,254 Residential mortgage loans and equity lines 3,365,642 - 9,822 - 3,375,464 Installment and other loans 4,378 - 95 - 4,473 Total gross loans $ 12,320,162 $ 488,543 $ 205,834 $ - $ 13,014,539 Loans held for sale $ - $ - $ - $ - $ - December 31, 2017 Pass/Watch Special Mention Substandard Doubtful Total (In thousands) Commercial loans $ 2,281,698 $ 118,056 $ 61,503 $ 9 $ 2,461,266 Real estate construction loans 616,411 54,209 8,185 - 678,805 Commercial mortgage loans 6,004,258 308,924 169,513 - 6,482,695 Residential mortgage loans and equity lines 3,232,606 - 9,748 - 3,242,354 Installment and other loans 5,170 - - - 5,170 Total gross loans $ 12,140,143 $ 481,189 $ 248,949 $ 9 $ 12,870,290 Loans held for sale $ - $ - $ 8,000 $ - $ 8,000
Impairment Method [Member]
Notes Tables
Impaired Financing Receivables [Table Text Block]	Real Estate Commercial Residential Commercial Construction Mortgage Mortgage Loans Installment and Loans Loans Loans and Equity Lines Other Loans Total (In thousands) March 31, 2018 Loans individually evaluated for impairment Allowance $ 11 $ - $ 1,145 $ 346 $ - $ 1,502 Balance $ 44,911 $ 8,113 $ 64,747 $ 14,342 $ - $ 132,113 Loans collectively evaluated for impairment Allowance $ 54,586 $ 21,864 $ 33,085 $ 11,026 $ 21 $ 120,582 Balance $ 2,391,510 $ 579,814 $ 6,545,507 $ 3,361,122 $ 4,473 $ 12,882,426 Total allowance $ 54,597 $ 21,864 $ 34,230 $ 11,372 $ 21 $ 122,084 Total balance $ 2,436,421 $ 587,927 $ 6,610,254 $ 3,375,464 $ 4,473 $ 13,014,539 December 31, 2017 Loans individually evaluated for impairment Allowance $ 43 $ - $ 1,738 $ 353 $ - $ 2,134 Balance $ 43,495 $ 8,185 $ 52,664 $ 13,009 $ - $ 117,353 Loans collectively evaluated for impairment Allowance $ 49,753 $ 24,838 $ 35,872 $ 10,660 $ 22 $ 121,145 Balance $ 2,417,771 $ 670,620 $ 6,430,031 $ 3,229,345 $ 5,170 $ 12,752,937 Total allowance $ 49,796 $ 24,838 $ 37,610 $ 11,013 $ 22 $ 123,279 Total balance $ 2,461,266 $ 678,805 $ 6,482,695 $ 3,242,354 $ 5,170 $ 12,870,290 Real Estate Commercial Residential Installment Commercial Construction Mortgage Mortgage Loans and Other Loans Loans Loans and Equity Lines Loans Total (In thousands) 2018 Beginning Balance $ 49,796 $ 24,838 $ 37,610 $ 11,013 $ 22 $ 123,279 Provision/(credit) for possible credit losses 3,907 (3,018 ) (4,163 ) 275 (1 ) (3,000 ) Charge-offs (19 ) - - - - (19 ) Recoveries 913 44 783 84 - 1,824 Net recoveries 894 44 783 84 - 1,805 March 31, 2018 Ending Balance $ 54,597 $ 21,864 $ 34,230 $ 11,372 $ 21 $ 122,084 Reserve for impaired loans $ 11 $ - $ 1,145 $ 346 $ - $ 1,502 Reserve for non-impaired loans $ 54,586 $ 21,864 $ 33,085 $ 11,026 $ 21 $ 120,582 Reserve for off-balance sheet credit commitments $ 2,747 $ 1,515 $ 138 $ 182 $ 6 $ 4,588 2017 Beginning Balance $ 49,203 $ 23,268 $ 34,864 $ 11,620 $ 11 $ 118,966 (Credit)/provision for possible credit losses (1,214 ) (3,549 ) 1,362 898 3 (2,500 ) Charge-offs (1,204 ) - (555 ) - - (1,759 ) Recoveries 491 49 289 8 - 837 Net (charge-offs)/recoveries (713 ) 49 (266 ) 8 - (922 ) March 31, 2017 Ending Balance $ 47,276 $ 19,768 $ 35,960 $ 12,526 $ 14 $ 115,544 Reserve for impaired loans $ 1,062 $ - $ 818 $ 395 $ - $ 2,275 Reserve for non-impaired loans $ 46,214 $ 19,768 $ 35,142 $ 12,131 $ 14 $ 113,269 Reserve for off-balance sheet credit commitments $ 2,243 $ 909 $ 120 $ 146 $ 6 $ 3,424

Note 12 - Fair Value Measurem31

Note 12 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	March 31, 2018 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value (In thousands) Assets Debt securities available-for-sale U.S. Treasury securities $ 124,595 $ - $ - $ 124,595 U.S. government agencies - 8,695 - 8,695 U.S. government sponsored entities - 385,920 - 385,920 State and municipal securities - 904 - 904 Mortgage-backed securities - 638,359 - 638,359 Collateralized mortgage obligations - 1,371 - 1,371 Corporate debt securities - 81,261 - 81,261 Total debt securities available-for-sale 124,595 1,116,510 - 1,241,105 Equity securities Preferred stock of government sponsored entities 6,691 - - 6,691 Mutual funds 6,129 - - 6,129 Other equity securities 11,334 - - 11,334 Total equity securities 24,154 - - 24,154 Warrants - - 195 195 Foreign exchange contracts - 1,539 - 1,539 Interest rate swaps - 11,674 - 11,674 Total assets $ 148,749 $ 1,129,723 $ 195 $ 1,278,667 Liabilities Option contracts $ - $ 3 $ - $ 3 Foreign exchange contracts - 924 - 924 Total liabilities $ - $ 927 $ - $ 927 December 31, 2017 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 $ 249,520 $ - $ - $ 249,520 U.S. government agency entities - 8,988 - 8,988 U.S. government sponsored entities - 390,336 - 390,336 State and municipal securities - 1,914 - 1,914 Mortgage-backed securities - 571,969 - 571,969 Collateralized mortgage obligations - 1,516 - 1,516 Corporate debt securities - 81,281 - 81,281 Mutual funds 6,230 - - 6,230 Preferred stock of government sponsored entities 10,102 - - 10,102 Other equity securities 11,770 - - 11,770 Total securities available-for-sale 277,622 1,056,004 - 1,333,626 Warrants - - 91 91 Interest rate swaps - 5,218 - 5,218 Foreign exchange contracts - 1,832 - 1,832 Total assets $ 277,622 $ 1,063,054 $ 91 $ 1,340,767 Liabilities Option contracts $ - $ 9 $ - $ 9 Interest rate swaps - 2,699 - 2,699 Foreign exchange contracts - 453 - 453 Total liabilities $ - $ 3,161 $ - $ 3,161
Fair Value Measurements, Nonrecurring [Table Text Block]	As of March 31, 2018 Total Losses Fair Value Measurements Using Total at For the Three Months Ended Level 1 Level 2 Level 3 Fair Value March 31, 2018 March 31, 2017 (In thousands) Assets Impaired loans by type: Commercial loans $ - $ - $ 220 $ 220 $ - $ 20 Commercial mortgage loans - - 26,131 26,131 - 250 Residential mortgage loans and equity lines - - 7,619 7,619 - - Total impaired loans - - 33,970 33,970 - 270 Other real estate owned (1) - 5,478 4,343 9,821 33 37 Investments in venture capital and private company stock - - 2,430 2,430 173 187 Total assets $ - $ 5,478 $ 40,743 $ 46,221 $ 206 $ 494 As of December 31, 2017 Total Losses Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2017 December 31, 2016 (In thousands) Assets Impaired loans by type: Commercial loans $ - $ - $ 18,097 $ 18,097 $ 25 $ 322 Commercial mortgage loans - - 31,459 31,459 - - Residential mortgage loans and equity lines - - 11,355 11,355 - - Total impaired loans - - 60,911 60,911 25 322 Other real estate owned (1) - 5,677 4,322 9,999 457 9 Investments in venture capital and private company stock - - 2,583 2,583 392 976 Total assets $ - $ 5,677 $ 67,816 $ 73,493 $ 874 $ 1,307

Note 13 - Fair Value of Finan32

Note 13 - Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Fair Value, by Balance Sheet Grouping [Table Text Block]	March 31, 2018 December 31, 2017 Carrying Carrying Amount Fair Value Amount Fair Value (In thousands) Financial Assets Cash and due from banks $ 199,713 $ 199,713 $ 247,056 $ 247,056 Short-term investments and interest bearing deposits 524,012 524,012 292,745 292,745 Securities available-for-sale 1,241,105 1,241,105 1,333,626 1,333,626 Equity securities 24,154 24,154 - - Loans held for sale - - 8,000 8,000 Loans, net (1) 12,889,166 12,908,391 12,743,766 12,663,049 Investment in Federal Home Loan Bank stock 17,250 17,250 23,085 23,085 Warrants 195 195 91 91 Notional Notional Amount Fair Value Amount Fair Value Foreign exchange contracts $ 78,021 $ 1,539 $ 108,530 $ 1,832 Interest rate swaps 681,055 11,674 514,159 5,218 Financial Liabilities Carrying Carrying Amount Fair Value Amount Fair Value Deposits $ 13,012,251 $ 13,032,828 $ 12,689,893 $ 12,700,674 Securities sold under agreements to repurchase 100,000 99,783 100,000 100,163 Advances from Federal Home Loan Bank 325,000 324,548 430,000 429,482 Other borrowings 53,178 51,367 52,885 51,075 Long-term debt 194,136 141,266 194,136 141,865 Notional Notional Amount Fair Value Amount Fair Value Option contracts $ 1,028 $ 3 $ 1,014 $ 9 Foreign exchange contracts 57,648 924 32,127 453 Interest rate swaps - - 145,399 2,699 Notional Notional Amount Fair Value Amount Fair Value Off-Balance Sheet Financial Instruments Commitments to extend credit $ 2,487,710 $ (7,711 ) $ 2,366,368 $ (7,224 ) Standby letters of credit 142,674 (1,418 ) 140,814 (1,805 ) Other letters of credit 25,885 (13 ) 27,353 (52 ) Bill of lading guarantees 24 (0 ) 24 (0 )
Schedule Of Fair Value Of Financial Instruments [Table Text Block]	As of March 31, 2018 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 199,713 $ 199,713 $ - $ - Short-term investments and interest bearing deposits 524,012 524,012 - - Debt securities available-for-sale 1,241,105 124,595 1,116,510 - Equity securities 24,154 24,154 - - Loans, net (1) 12,908,391 - - 12,908,391 Investment in Federal Home Loan Bank stock 17,250 - 17,250 - Warrants 195 - - 195 Financial Liabilities Deposits 13,032,828 - - 13,032,828 Securities sold under agreement to repurchase 99,783 - 99,783 - Advances from Federal Home Loan Bank 324,548 - 324,548 - Other borrowings 51,367 - - 51,367 Long-term debt 141,266 - 141,266 - As of December 31, 2017 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 247,056 $ 247,056 $ - $ - Short-term investments and interest bearing deposits 292,745 292,745 - - Securities available-for-sale 1,333,626 277,622 1,056,004 - Loans held-for-sale 8,000 - - 8,000 Loans, net (1) 12,663,049 - - 12,663,049 Investment in Federal Home Loan Bank stock 23,085 - 23,085 - Warrants 91 - - 91 Financial Liabilities Deposits 12,700,674 - - 12,700,674 Securities sold under agreement to repurchase 100,163 - 100,163 - Advances from Federal Home Loan Bank 429,482 - 429,482 - Other borrowings 51,075 - - 51,075 Long-term debt 141,865 - 141,865 -

Note 16 - Balance Sheet Offse33

Note 16 - Balance Sheet Offsetting (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
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, 2018 Assets: Derivatives $ 11,674 $ - $ 11,674 $ - $ - $ 11,674 Liabilities: Securities sold under agreements to repurchase $ 100,000 $ - $ 100,000 $ - $ (100,000 ) $ - December 31, 2017 Assets: Derivatives $ 5,218 $ - $ 5,218 $ - $ - $ 5,218 Liabilities: Securities sold under agreements to repurchase $ 100,000 $ - $ 100,000 $ - $ (100,000 ) $ - Derivatives $ 2,699 $ - $ 2,699 $ - $ (2,699 ) $ -

Note 17 - Revenue from Contra34

Note 17 - Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Disaggregation of Revenue [Table Text Block]	March 31, 2018 March 31, 2017 (In thousands) Non-interest income, in-scope (1) : Fees and service charges on deposit accounts $ 2,318 $ 2,512 Wealth management fees 1,301 979 Other service fees (2) 3,248 3,169 Total noninterest income 6,867 6,660 Noninterest income, not in-scope (3) (1,557 ) 58 Total noninterest income $ 5,310 $ 6,718

Note 18 - Stockholders' Equity

Note 18 - Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Three months ended March 31, 2018 Three months ended March 31, 2017 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 $ (1,060 ) $ (1,545 ) Cash flow hedge derivatives (1,451 ) (2,170 ) Total $ (2,511 ) $ (3,715 ) Reclassification adjustment for stranded tax effects of Tax Cuts and Jobs Act (1) Securities available-for-sale - 200 (200 ) - - - Cash flow hedge derivatives - 315 (315 ) - - - Total - 515 (515 ) - - - Reclassification adjustment for equity securities (2) Equity securities (12,151 ) (3,592 ) (8,559 ) - - - Net unrealized (losses)/gains arising during the period Securities available-for-sale $ (16,346 ) $ (4,832 ) $ (11,514 ) $ (856 ) $ (360 ) $ (496 ) Cash flow hedge derivatives 3,113 920 2,193 516 217 299 Total (13,233 ) (3,912 ) (9,321 ) (340 ) (143 ) (197 ) Reclassification adjustment for net losses in net income Securities available-for-sale - - - 466 196 270 Cash flow hedge derivatives - - - - - - Total - - - 466 196 270 Total other comprehensive (loss)/income Securities available-for-sale (16,346 ) (4,832 ) (11,514 ) (390 ) (164 ) (226 ) Cash flow hedge derivatives 3,113 920 2,193 516 217 299 Total $ (13,233 ) $ (3,912 ) $ (9,321 ) $ 126 $ 53 $ 73 Ending balance, (loss)/gain, net of tax Securities available-for-sale $ (21,333 ) $ (1,771 ) Cash flow hedge derivatives 427 (1,871 ) Total $ (20,906 ) $ (3,642 )

Note 1 - Business (Details Text

Note 1 - Business (Details Textual)	Mar. 31, 2018
Number Of Limited Partnerships In Housing Investments	8
Percentage of Subsidiaries Common Securities Owned by Parent Company	100.00%
Southern California [Member]
Number Of Branch Locations	26
Northern California [Member]
Number Of Branch Locations	15
New York [Member]
Number Of Branch Locations	12
Illinois [Member]
Number Of Branch Locations	3
WASHINGTON Member
Number Of Branch Locations	3
Texas [Member]
Number Of Branch Locations	2
Massachusetts [Member]
Number Of Branch Locations	1
Nevada [Member]
Number Of Branch Locations	1
New Jersey [Member]
Number Of Branch Locations	1
HONG KONG
Number Of Branch Locations	1

Note 2 - Basis of Presentation

Note 2 - Basis of Presentation (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Cash and Cash Equivalents, Period Increase (Decrease), Total	$ 183,924,000	$ (364,504,000)
Cash and Cash Equivalents, at Carrying Value, Ending Balance	$ 723,725,000	820,580,000	$ 539,801,000	$ 1,185,084,000
Previously Reported [Member]
Net Cash Provided by (Used in) Investing Activities, Continuing Operations, Total		251.60
Cash and Cash Equivalents, Period Increase (Decrease), Total		(27,500,000)
Cash and Cash Equivalents, at Carrying Value, Ending Balance		$ 190,500,000		$ 218,000,000

Note 3 - Recent Accounting Pr38

Note 3 - Recent Accounting Pronouncements (Details Textual) - USD ($)	Jan. 01, 2018	Mar. 31, 2018	Mar. 31, 2017
Equity Securities, FV-NI, Unrealized Gain (Loss), Total		$ (3,847,000)
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect	$ 515,000
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 8,600,000

Note 4 - Acquisition (Details T

Note 4 - Acquisition (Details Textual) - SinoPac Bancorp [Member] - USD ($)	Dec. 12, 2017	Nov. 14, 2017	Nov. 04, 2017	Jul. 14, 2017	Mar. 31, 2018
Business Combination, Aggregate Purchase Price				$ 351,600,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				926,192
Payments to Acquire Businesses, Gross		$ 100,000,000	$ 100,000,000	$ 284,984,000
Business Combination, Deferred Payments		$ 35,400,000			$ 35,200,000
Business Combination, Addition Cash Consideration Related to Realized Gain from Sale of Building	$ 4,100,000
Business Combination, Purchase Price Adjustments					$ 340,000

Note 4 - Acquisition - Fair Val

Note 4 - Acquisition - Fair Value of Assets and Liabilities Acquired (Details) - USD ($)	Nov. 14, 2017	Nov. 04, 2017	Jul. 14, 2017	Mar. 31, 2018	Mar. 31, 2017
Liabilities assumed:
Gain from acquisition				$ 340,000
SinoPac Bancorp [Member]
Assets acquired:
Cash and cash equivalents			$ 166,932,000
Short-term investments			122,000,000
Securities available-for-sale			88,044,000
FHLB and FRB stock			19,890,000
Loans			705,792,000
Premises and equipment			6,239,000
Cash surrender value of life insurance			46,083,000
Deferred tax assets, net			40,690,000
Core deposit intangible			6,122,000
Accrued interest receivable and other assets			10,689,000
Total assets acquired			1,212,481,000
Liabilities assumed:
Deposits			813,888,000
Advances from the Federal Home Loan Bank			30,000,000
Accrued interest payable and other liabilities			8,512,000
Total liabilities assumed			852,400,000
Net assets acquired			360,081,000
Cash paid	$ 100,000,000	$ 100,000,000	284,984,000
Fair value of common stock issued			34,862,000
Total consideration paid			319,846,000
Purchase price payable to SinoPac			34,267,000
Total consideration			354,113,000
Gain from acquisition			$ 5,968,000

Note 5 - Earnings Per Share - E

Note 5 - Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 63,816	$ 48,941
Weighted-average shares:
Basic weighted-average number of common shares outstanding (in shares)	81,123,380	79,703,593
Dilutive effect of weighted-average outstanding common share equivalents
Diluted weighted-average number of common shares outstanding (in shares)	81,680,445	80,413,178
Average stock options and restricted stock units with anti-dilutive effect (in shares)	38,906	19,900
Basic (in dollars per share)	$ 0.79	$ 0.61
Diluted (in dollars per share)	$ 0.78	$ 0.61
Warrant [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Warrants (in shares)	295,453	416,607
Employee Stock Option [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Warrants (in shares)		33,888
Restricted Stock Units (RSUs) [Member]
Dilutive effect of weighted-average outstanding common share equivalents
Warrants (in shares)	261,612	259,090

Note 6 - Stock-based Compensa42

Note 6 - Stock-based Compensation (Details Textual)	3 Months Ended		12 Months Ended
	Mar. 31, 2018USD ($)$ / sharesshares	Mar. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2017shares	Dec. 31, 2016shares	Dec. 31, 2015shares	Dec. 31, 2014shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	35,880	18,040
Proceeds from Stock Options Exercised | $	$ 838,000	$ 422,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price | $ / shares	$ 23.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $	$ 718,000	262,000
Benefit (Shortfall) of Tax Deductions from Share-based Compensation | $	$ 700,000	$ 2,600,000
2005 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	2,608,672
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	122,674	87,781
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 43.50	$ 38.59
Number of Officers Receiving Award	6		6	7	7	7
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Allocated Share-based Compensation Expense, Total | $	$ 1,500,000	$ 1,200,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total | $	$ 15,100,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 109 days
Performance TSR Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			23,556	30,319	61,209	60,456
Performance EPS Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	55,455			58,241	57,409	57,642
Performance ROA Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			22,377	29,119

Note 6 - Stock-based Compensa43

Note 6 - Stock-based Compensation - Restricted Stock Units (Details) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2018shares
Balance (in shares)	561,610
Granted (in shares)	178,129
Distributed (in shares)	(109,454)
Forfeited (in shares)	(4,010)
Balance (in shares)	626,275

Note 7 - Investment Securitie44

Note 7 - Investment Securities (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale, Total	$ 1,241,105,000	$ 1,300,000,000		$ 1,333,626,000
Proceeds from Sale of Mortgage-backed Securities (MBS), Available-for-sale	0	0
Proceeds from Maturities, Prepayments and Calls of Mortgage Backed Securities (MBS)	22,900,000	15,400,000
Proceeds From Sales And Repayments Of Other Investment Securities	0	99,500,000
Proceeds from Maturities Repayments and Calls of Other Investment Securities	151,000,000	70,000,000
Realized Loss From Sale And Call Of Investment Securities	0	438,000
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Total	0	28,000
Equity Securities, FV-NI, Unrealized Gain (Loss), Total	(3,847,000)
Equity Securities, FV-NI	24,154,000			28,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss, Total	31,700,000			16,684,000
Pledged Investment Securities	$ 231,000,000			$ 272,200,000
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ 8,600,000

Note 7 - Investment Securitie45

Note 7 - Investment Securities - Investment Securities (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Investment securities available for sale, amortized cost	$ 1,271,291,000	$ 1,336,345,000
Investment securities available for sale, gross unrealized gains	1,506,000	13,965,000
Investment securities available for sale, gross unrealized losses	31,692,000	16,684,000
Securities available-for-sale	1,241,105,000	1,333,626,000	$ 1,300,000,000
US Treasury Securities [Member]
Investment securities available for sale, amortized cost	124,842,000	249,877,000
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses	247,000	357,000
Securities available-for-sale	124,595,000	249,520,000
US Government Corporations and Agencies Securities [Member]
Investment securities available for sale, amortized cost	8,794,000	9,047,000
Investment securities available for sale, gross unrealized gains		11,000
Investment securities available for sale, gross unrealized losses	99,000	70,000
Securities available-for-sale	8,695,000	8,988,000
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale, amortized cost	400,000,000	400,000,000
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses	14,080,000	9,664,000
Securities available-for-sale	385,920,000	390,336,000
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, amortized cost	924,000	1,944,000
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses	20,000	30,000
Securities available-for-sale	904,000	1,914,000
Collateralized Mortgage Backed Securities [Member]
Investment securities available for sale, amortized cost	655,327,000	577,987,000
Investment securities available for sale, gross unrealized gains	226,000	241,000
Investment securities available for sale, gross unrealized losses	17,194,000	6,259,000
Securities available-for-sale	638,359,000	571,969,000
Collateralized Mortgage Obligations [Member]
Investment securities available for sale, amortized cost	1,398,000	1,533,000
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses	27,000	17,000
Securities available-for-sale	1,371,000	1,516,000
Corporate Debt Securities [Member]
Investment securities available for sale, amortized cost	80,006,000	80,007,000
Investment securities available for sale, gross unrealized gains	1,280,000	1,291,000
Investment securities available for sale, gross unrealized losses	25,000	17,000
Securities available-for-sale	$ 81,261,000	81,281,000
Mutual Funds [Member]
Investment securities available for sale, amortized cost		6,500,000
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses		270,000
Securities available-for-sale		6,230,000
Preferred Stock of Government Sponsored Entities [Member]
Investment securities available for sale, amortized cost		5,842,000
Investment securities available for sale, gross unrealized gains		4,260,000
Investment securities available for sale, gross unrealized losses
Securities available-for-sale		10,102,000
Other Equity Securities [Member]
Investment securities available for sale, amortized cost		3,608,000
Investment securities available for sale, gross unrealized gains		8,162,000
Investment securities available for sale, gross unrealized losses
Securities available-for-sale		$ 11,770,000

Note 7 - Investment Securitie46

Note 7 - Investment Securities - Investments by Contractual Maturity Date (Details) - USD ($)		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Due in one year or less, Amortized Cost		$ 140,165,000
Due in one year or less, Fair Value		139,922,000
Due after one year through five years, Amortized Cost		466,090,000
Due after one year through five years, Fair Value		453,280,000
Due after five years through ten years, Amortized Cost		5,783,000
Due after five years through ten years, Fair Value		5,624,000
Due after ten years (1), Amortized Cost	[1]	659,253,000
Due after ten years (1), Fair Value	[1]	642,279,000
Total, Amortized Cost		1,271,291,000	$ 1,336,345,000
Total, Fair Value		$ 1,241,105,000	$ 1,333,626,000	$ 1,300,000,000
[1]	Equity securities are reported in this category

Note 7 - Investment Securitie47

Note 7 - Investment Securities - Temporarily Impaired Securities (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Temporarily impaired securities, less than 12 months, fair value		$ 556,415,000
Temporarily impaired securities, less than 12 months, unrealized losses		3,343,000
Temporarily impaired securities, 12 months or longer, fair value		624,880,000
Temporarily impaired securities, 12 months or longer, unrealized losses		13,341,000
Temporarily impaired securities, total fair value		1,181,295,000
Temporarily impaired securities, total unrealized losses	$ 31,700,000	16,684,000
US Treasury Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	74,829,000	199,823,000
Temporarily impaired securities, less than 12 months, unrealized losses	19,000	62,000
Temporarily impaired securities, 12 months or longer, fair value	49,766,000	49,697,000
Temporarily impaired securities, 12 months or longer, unrealized losses	228,000	295,000
Temporarily impaired securities, total fair value	124,595,000	249,520,000
Temporarily impaired securities, total unrealized losses	247,000	357,000
US Government Corporations and Agencies Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	8,695,000	5,711,000
Temporarily impaired securities, less than 12 months, unrealized losses	99,000	70,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	8,695,000	5,711,000
Temporarily impaired securities, total unrealized losses	99,000	70,000
US Government-sponsored Enterprises Debt Securities [Member]
Temporarily impaired securities, less than 12 months, fair value
Temporarily impaired securities, less than 12 months, unrealized losses
Temporarily impaired securities, 12 months or longer, fair value	385,920,000	390,336,000
Temporarily impaired securities, 12 months or longer, unrealized losses	14,080,000	9,664,000
Temporarily impaired securities, total fair value	385,920,000	390,336,000
Temporarily impaired securities, total unrealized losses	14,080,000	9,664,000
US States and Political Subdivisions Debt Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	903,000	1,914,000
Temporarily impaired securities, less than 12 months, unrealized losses	20,000	30,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	903,000	1,914,000
Temporarily impaired securities, total unrealized losses	20,000	30,000
Collateralized Mortgage Backed Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	437,818,000	342,436,000
Temporarily impaired securities, less than 12 months, unrealized losses	11,042,000	3,147,000
Temporarily impaired securities, 12 months or longer, fair value	167,958,000	178,617,000
Temporarily impaired securities, 12 months or longer, unrealized losses	6,152,000	3,112,000
Temporarily impaired securities, total fair value	605,776,000	521,053,000
Temporarily impaired securities, total unrealized losses	17,194,000	6,259,000
Collateralized Mortgage Obligations [Member]
Temporarily impaired securities, less than 12 months, fair value	1,371,000	1,516,000
Temporarily impaired securities, less than 12 months, unrealized losses	27,000	17,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	1,371,000	1,516,000
Temporarily impaired securities, total unrealized losses	27,000	17,000
Corporate Debt Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	5,003,000	5,015,000
Temporarily impaired securities, less than 12 months, unrealized losses	25,000	17,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	5,003,000	5,015,000
Temporarily impaired securities, total unrealized losses	25,000	17,000
Total Debt Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	528,619,000
Temporarily impaired securities, less than 12 months, unrealized losses	11,232,000
Temporarily impaired securities, 12 months or longer, fair value	603,644,000
Temporarily impaired securities, 12 months or longer, unrealized losses	20,460,000
Temporarily impaired securities, total fair value	1,132,263,000
Temporarily impaired securities, total unrealized losses	31,692,000
Mutual Funds [Member]
Temporarily impaired securities, less than 12 months, fair value
Temporarily impaired securities, less than 12 months, unrealized losses
Temporarily impaired securities, 12 months or longer, fair value	6,129,000	6,230,000
Temporarily impaired securities, 12 months or longer, unrealized losses	371,000	270,000
Temporarily impaired securities, total fair value	6,129,000	6,230,000
Temporarily impaired securities, total unrealized losses	371,000	$ 270,000
Preferred Stock of Government Sponsored Entities [Member]
Temporarily impaired securities, less than 12 months, fair value	6,691,000
Temporarily impaired securities, less than 12 months, unrealized losses	3,411,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	6,691,000
Temporarily impaired securities, total unrealized losses	3,411,000
Other Equity Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	11,334,000
Temporarily impaired securities, less than 12 months, unrealized losses	436,000
Temporarily impaired securities, 12 months or longer, fair value
Temporarily impaired securities, 12 months or longer, unrealized losses
Temporarily impaired securities, total fair value	11,334,000
Temporarily impaired securities, total unrealized losses	436,000
Total Equity Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	18,025,000
Temporarily impaired securities, less than 12 months, unrealized losses	3,847,000
Temporarily impaired securities, 12 months or longer, fair value	6,129,000
Temporarily impaired securities, 12 months or longer, unrealized losses	371,000
Temporarily impaired securities, total fair value	24,154,000
Temporarily impaired securities, total unrealized losses	$ 4,218,000

Note 8 - Loans (Details Textual

Note 8 - Loans (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Impaired Financing Receivable, Recorded Investment, Total	$ 132,113,000		$ 117,353,000
Percentage Of Charge Off To Contractual Balances For Impaired Loans	6.40%		7.20%
Allowance for Credit Losses, Change in Method of Calculating Impairment	$ 142,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Loans and Leases Receivable, Impaired, Commitment to Lend	0
Minimum [Member]
Period Loan Is In Payment Default		60 days
Maximum [Member]
Period Loan Is In Payment Default		90 days
Nonaccrual Loans [Member]
Impaired Financing Receivable, Recorded Investment, Total			$ 48,800,000
Accruing Troubled Debt Restructuring [Member]
Impaired Financing Receivable, Recorded Investment, Total			68,600,000
Financing Receivable, Modifications, Recorded Investment	82,800,000		68,600,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	1,200,000		1,900,000
Non-accruing Troubled Debt Restructuring [Member]
Financing Receivable, Modifications, Recorded Investment	31,200,000		33,400,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	75,000		83,000
Nonaccrual Loans [Member]
Impaired Financing Receivable, Recorded Investment, Total	49,300,000
Accruing Troubled Debt Restructuring [Member]
Impaired Financing Receivable, Recorded Investment, Total	82,800,000
Financing Receivable, Modifications, Recorded Investment	$ 82,785,000		$ 68,565,000	$ 80,419,000	$ 65,393,000

Note 8 - Loans - Components of

Note 8 - Loans - Components of Loans in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans	$ 13,014,539	$ 12,870,290
Less: Allowance for loan losses	(122,084)	(123,279)
Unamortized deferred loan fees, net	(3,289)	(3,245)
Total loans, net	12,889,166	12,743,766
Loans held for sale		8,000
Commercial Portfolio Segment [Member]
Loans	2,436,421	2,461,266
Less: Allowance for loan losses	(54,597)	(49,796)
Residential Portfolio Segment [Member]
Loans	3,198,750	3,062,050
Commercial Real Estate Portfolio Segment [Member]
Loans	6,610,254	6,482,695
Less: Allowance for loan losses	(34,230)	(37,610)
Real Estate Construction Portfolio Segment [Member]
Loans	587,927	678,805
Less: Allowance for loan losses	(21,864)	(24,838)
Equity Lines Portfolio Segment [Member]
Loans	176,714	180,304
Consumer Portfolio Segment [Member]
Loans	4,473	5,170
Less: Allowance for loan losses	$ (21)	$ (22)

Note 8 - Loans - Average Balanc

Note 8 - Loans - Average Balance and Interest Income Recognized Related to Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Impaired Loans Average Recorded Investment	$ 125,627	$ 118,213
Impaired Loans Interest Income Recognized	1,078	1,000
Commercial Portfolio Segment [Member]
Impaired Loans Average Recorded Investment	45,183	23,335
Impaired Loans Interest Income Recognized	334	83
Real Estate Construction Portfolio Segment [Member]
Impaired Loans Average Recorded Investment	8,137	16,930
Impaired Loans Interest Income Recognized		340
Commercial Real Estate Portfolio Segment [Member]
Impaired Loans Average Recorded Investment	58,598	61,405
Impaired Loans Interest Income Recognized	644	445
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Impaired Loans Average Recorded Investment	13,709	16,543
Impaired Loans Interest Income Recognized	$ 100	$ 132

Note 8 - Loans - Impaired Loans

Note 8 - Loans - Impaired Loans and Related Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans with no related allowance, unpaid principal balance	$ 105,382	$ 91,430
Loans with no related allowance, recorded investment	96,641	83,217
Loans with related allowance, unpaid principal balance	36,664	35,646
Loans with related allowance, recorded investment	35,472	34,136
Allowance	1,502	2,134
Total impaired loans, unpaid principal balance	142,046	127,076
Total impaired loans, recorded investment	132,113	117,353
Commercial Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	45,698	43,483
Loans with no related allowance, recorded investment	44,680	42,702
Loans with related allowance, unpaid principal balance	258	891
Loans with related allowance, recorded investment	231	793
Allowance	11	43
Real Estate Construction Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	8,821	8,821
Loans with no related allowance, recorded investment	8,113	8,185
Commercial Real Estate Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	44,486	37,825
Loans with no related allowance, recorded investment	37,471	31,029
Loans with related allowance, unpaid principal balance	27,315	21,733
Loans with related allowance, recorded investment	27,276	21,635
Allowance	1,145	1,738
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	6,377	1,301
Loans with no related allowance, recorded investment	6,377	1,301
Loans with related allowance, unpaid principal balance	9,091	13,022
Loans with related allowance, recorded investment	7,965	11,708
Allowance	$ 346	$ 353

Note 8 - Loans - Aging of Loan

Note 8 - Loans - Aging of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans past due	$ 96,339	$ 98,709
Non-accrual loans	49,328	48,787
Loans not past due	12,918,200	12,771,581
Loans	13,014,539	12,870,290
Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due	46,770	38,396
Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due	241	11,526
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due
Commercial Portfolio Segment [Member]
Loans past due	31,633	30,567
Non-accrual loans	15,916	14,296
Loans not past due	2,404,788	2,430,699
Loans	2,436,421	2,461,266
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due		11,079
Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due	146	5,192
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due
Real Estate Construction Portfolio Segment [Member]
Loans past due	9,033	11,213
Non-accrual loans	8,113	8,185
Loans not past due	578,894	667,592
Loans	587,927	678,805
Real Estate Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due	920	3,028
Real Estate Construction Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due
Real Estate Construction Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due
Commercial Real Estate Portfolio Segment [Member]
Loans past due	43,795	42,995
Non-accrual loans	17,780	19,820
Loans not past due	6,566,459	6,439,700
Loans	6,610,254	6,482,695
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due	26,015	17,573
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due		5,602
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans past due	11,613	13,831
Non-accrual loans	7,519	6,486
Loans not past due	3,363,851	3,228,523
Loans	3,375,464	3,242,354
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due	4,094	6,613
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due		732
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due
Installment and Other Loans [Member ]
Loans past due	265	103
Non-accrual loans
Loans not past due	4,208	5,067
Loans	4,473	5,170
Installment and Other Loans [Member ] | Financing Receivables, 30 to 59 Days Past Due [Member]
Loans past due	170	103
Installment and Other Loans [Member ] | Financing Receivables, 60 to 89 Days Past Due [Member]
Loans past due	95
Installment and Other Loans [Member ] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Loans past due

Note 8 - Loans - Troubled Debt

Note 8 - Loans - Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)
No. of Contracts	11	2
Pre-Modification Outstanding Recorded Investment	$ 17,551	$ 27,683
Post-Modification Outstanding Recorded Investment	17,551	27,683
Special Reserve	$ 142
Commercial Portfolio Segment [Member]
No. of Contracts	3
Pre-Modification Outstanding Recorded Investment	$ 2,463
Post-Modification Outstanding Recorded Investment	2,463
Special Reserve
Real Estate Construction Portfolio Segment [Member]
No. of Contracts		2
Pre-Modification Outstanding Recorded Investment		$ 27,683
Post-Modification Outstanding Recorded Investment		27,683
Special Reserve
Commercial Real Estate Portfolio Segment [Member]
No. of Contracts	6
Pre-Modification Outstanding Recorded Investment	$ 14,287
Post-Modification Outstanding Recorded Investment	14,287
Special Reserve	$ 134
Residential Mortgage and Equity Lines Portfolio Segment [Member]
No. of Contracts	2
Pre-Modification Outstanding Recorded Investment	$ 801
Post-Modification Outstanding Recorded Investment	801
Special Reserve	$ 8

Note 8 - Loans - Accruing Troub

Note 8 - Loans - Accruing Troubled Debt Restructurings (Details) - Accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accruing TDRs	$ 82,785	$ 68,565	$ 80,419	$ 65,393
Payment Deferral [Member]
Accruing TDRs	52,348	44,119
Contractual Interest Rate Reduction [Member]
Accruing TDRs	7,832	6,206
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	22,605	18,240
Commercial Portfolio Segment [Member]
Accruing TDRs	28,995	29,199
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	28,995	29,199
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs
Commercial Real Estate Portfolio Segment [Member]
Accruing TDRs	46,967	32,843
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	19,609	11,504
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	7,499	5,871
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	19,859	15,468
Residential Portfolio Segment [Member]
Accruing TDRs	6,823	6,523
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	3,744	3,416
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	333	335
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 2,746	$ 2,772

Note 8 - Loans - Non-accrual Tr

Note 8 - Loans - Non-accrual Troubled Debt Restructurings (Details) - Non-accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accruing TDRs	$ 31,195	$ 33,416	$ 32,779	$ 29,722
Payment Deferral [Member]
Accruing TDRs	20,173	20,472
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	11,022	11,267
Contractual Interest Rate Reduction [Member]
Accruing TDRs		1,677
Commercial Portfolio Segment [Member]
Accruing TDRs	14,568	12,944
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	14,568	12,944
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs
Commercial Real Estate Portfolio Segment [Member]
Accruing TDRs	14,882	19,021
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	4,011	6,231
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	10,871	11,113
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs		1,677
Residential Portfolio Segment [Member]
Accruing TDRs	1,745	1,451
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	1,594	1,297
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 151	154
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs

Note 8 - Loans - Troubled Deb56

Note 8 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accruing Troubled Debt Restructuring [Member]
Beginning balance	$ 68,565	$ 65,393
New restructurings	17,320	27,683
Restructured loans restored to accrual status	2,318
Payments	(3,891)	(4,595)
Restructured loans placed on non-accrual status	(1,528)	(5,822)
Expiration of loan concession upon renewal		(2,240)
Restructured loans placed on non-accrual status	1,528	5,822
Ending balance	82,785	80,419
Non-accruing Troubled Debt Restructuring [Member]
Beginning balance	33,416	29,722
New restructurings	231
Restructured loans restored to accrual status	(2,318)
Payments	(1,661)	(990)
Restructured loans placed on non-accrual status	(1,528)	(5,822)
Restructured loans placed on non-accrual status	1,528	5,822
Charge-offs		(1,049)
Foreclosures		(726)
Ending balance	$ 31,195	$ 32,779

Note 8 - Loans - Portfolio by R

Note 8 - Loans - Portfolio by Risk Rating (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans	$ 13,014,539	$ 12,870,290
Loans held for sale		8,000
Commercial Portfolio Segment [Member]
Loans	2,436,421	2,461,266
Real Estate Construction Portfolio Segment [Member]
Loans	587,927	678,805
Commercial Real Estate Portfolio Segment [Member]
Loans	6,610,254	6,482,695
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans	3,375,464	3,242,354
Consumer Portfolio Segment [Member]
Loans	4,473	5,170
Pass [Member]
Loans	12,320,162	12,140,143
Loans held for sale
Pass [Member] | Commercial Portfolio Segment [Member]
Loans	2,224,463	2,281,698
Pass [Member] | Real Estate Construction Portfolio Segment [Member]
Loans	522,983	616,411
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	6,202,696	6,004,258
Pass [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans	3,365,642	3,232,606
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	4,378	5,170
Special Mention [Member]
Loans	488,543	481,189
Loans held for sale
Special Mention [Member] | Commercial Portfolio Segment [Member]
Loans	139,985	118,056
Special Mention [Member] | Real Estate Construction Portfolio Segment [Member]
Loans	55,911	54,209
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	292,647	308,924
Special Mention [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans
Special Mention [Member] | Consumer Portfolio Segment [Member]
Loans
Substandard [Member]
Loans	205,834	248,949
Loans held for sale		8,000
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans	71,973	61,503
Substandard [Member] | Real Estate Construction Portfolio Segment [Member]
Loans	9,033	8,185
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	114,911	169,513
Substandard [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans	9,822	9,748
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	95
Doubtful [Member]
Loans		9
Loans held for sale
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans		9
Doubtful [Member] | Real Estate Construction Portfolio Segment [Member]
Loans
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans
Doubtful [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans

Note 8 - Loans - Allowance for

Note 8 - Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Method (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Loans individually evaluated for impairment, allowance	$ 1,502		$ 2,134
Loans individually evaluated for impairment, balance	132,113		117,353
Loans collectively evaluated for impairment, allowance	120,582		121,145
Loans collectively evaluated for impairment, balance	12,882,426		12,752,937
Loans, allowance	122,084		123,279
Loans	13,014,539		12,870,290
Beginning Balance	123,279	$ 118,966
Provision/(credit) for possible credit losses	(3,000)	(2,500)
Charge-offs	(19)	(1,759)
Recoveries	1,824	837
Net recoveries	1,805	(922)
Ending Balance	122,084	115,544
Reserve for impaired loans	1,502	2,275
Reserve for non-impaired loans	120,582	113,269
Reserve for off-balance sheet credit commitments	4,588	3,424
Commercial Portfolio Segment [Member]
Loans individually evaluated for impairment, allowance	11		43
Loans individually evaluated for impairment, balance	44,911		43,495
Loans collectively evaluated for impairment, allowance	54,586		49,753
Loans collectively evaluated for impairment, balance	2,391,510		2,417,771
Loans, allowance	54,597		49,796
Loans	2,436,421		2,461,266
Beginning Balance	49,796	49,203
Provision/(credit) for possible credit losses	3,907	(1,214)
Charge-offs	(19)	(1,204)
Recoveries	913	491
Net recoveries	894	(713)
Ending Balance	54,597	47,276
Reserve for impaired loans	11	1,062
Reserve for non-impaired loans	54,586	46,214
Reserve for off-balance sheet credit commitments	2,747	2,243
Real Estate Construction Portfolio Segment [Member]
Loans individually evaluated for impairment, allowance
Loans individually evaluated for impairment, balance	8,113		8,185
Loans collectively evaluated for impairment, allowance	21,864		24,838
Loans collectively evaluated for impairment, balance	579,814		670,620
Loans, allowance	21,864		24,838
Loans	587,927		678,805
Beginning Balance	24,838	23,268
Provision/(credit) for possible credit losses	(3,018)	(3,549)
Charge-offs
Recoveries	44	49
Net recoveries	44	49
Ending Balance	21,864	19,768
Reserve for impaired loans
Reserve for non-impaired loans	21,864	19,768
Reserve for off-balance sheet credit commitments	1,515	909
Commercial Real Estate Portfolio Segment [Member]
Loans individually evaluated for impairment, allowance	1,145		1,738
Loans individually evaluated for impairment, balance	64,747		52,664
Loans collectively evaluated for impairment, allowance	33,085		35,872
Loans collectively evaluated for impairment, balance	6,545,507		6,430,031
Loans, allowance	34,230		37,610
Loans	6,610,254		6,482,695
Beginning Balance	37,610	34,864
Provision/(credit) for possible credit losses	(4,163)	1,362
Charge-offs		(555)
Recoveries	783	289
Net recoveries	783	(266)
Ending Balance	34,230	35,960
Reserve for impaired loans	1,145	818
Reserve for non-impaired loans	33,085	35,142
Reserve for off-balance sheet credit commitments	138	120
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans individually evaluated for impairment, allowance	346		353
Loans individually evaluated for impairment, balance	14,342		13,009
Loans collectively evaluated for impairment, allowance	11,026		10,660
Loans collectively evaluated for impairment, balance	3,361,122		3,229,345
Loans, allowance	11,372		11,013
Loans	3,375,464		3,242,354
Beginning Balance	11,013	11,620
Provision/(credit) for possible credit losses	275	898
Charge-offs
Recoveries	84	8
Net recoveries	84	8
Ending Balance	11,372	12,526
Reserve for impaired loans	346	395
Reserve for non-impaired loans	11,026	12,131
Reserve for off-balance sheet credit commitments	182	146
Installment and Other Loans [Member ]
Loans	4,473		5,170
Beginning Balance	22	11
Provision/(credit) for possible credit losses	(1)	3
Charge-offs
Recoveries
Net recoveries
Ending Balance	21	14
Reserve for impaired loans
Reserve for non-impaired loans	21	14
Reserve for off-balance sheet credit commitments	6	$ 6
Consumer Portfolio Segment [Member]
Loans individually evaluated for impairment, allowance
Loans individually evaluated for impairment, balance
Loans collectively evaluated for impairment, allowance	21		22
Loans collectively evaluated for impairment, balance	4,473		5,170
Loans, allowance	21		22
Loans	$ 4,473		$ 5,170

Note 10 - Borrowed Funds (Detai

Note 10 - Borrowed Funds (Details Textual) - USD ($)	Nov. 14, 2017	Nov. 04, 2017	Oct. 12, 2017	Jul. 14, 2017	Mar. 31, 2018	Dec. 31, 2017
Securities Sold under Agreements to Repurchase, Total					$ 100,000,000	$ 100,000,000
Weighted Average Rate Of Securities Sold Under Agreements					2.86%
Advances from Federal Home Loan Banks, Total					$ 325,000,000	430,000,000
SinoPac Bancorp [Member]
Payments to Acquire Businesses, Gross	$ 100,000,000	$ 100,000,000		$ 284,984,000
Business Combination, Deferred Payments	$ 35,400,000				$ 35,200,000
Business Combination, Deferred Payments, Disbursed Rate, In Next Twelve Months					50.00%
Business Combination, Deferred Payments, Disbursed Rate, In Year Two					30.00%
Business Combination, Deferred Payments, Disbursed Rate, In Year Three					20.00%
Debt Instrument, Face Amount					$ 35,700,000	$ 35,200,000
Mature in April 2018 [Member]
Advances from Federal Home Loan Banks, Total					15,000,000
Mature in July 2018 [Member]
Advances from Federal Home Loan Banks, Total					5,000,000
Mature in October 2018 [Member]
Advances from Federal Home Loan Banks, Total					5,000,000
Mature in December 2019 [Member]
Advances from Federal Home Loan Banks, Total					$ 50,000,000
Business Combination, Deferred Payments [Member]
Debt Instrument, Interest Rate, Effective Percentage					2.80%
Business Combination, Deferred Payments [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate					1.50%
Term Loan [Member] | US Bank [Member]
Debt Instrument, Interest Rate, Effective Percentage					3.438%	3.125%
Debt Instrument, Face Amount			$ 75,000,000
Debt Instrument, Periodic Payment, Principal			$ 4,700,000
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | US Bank [Member]
Debt Instrument, Basis Spread on Variable Rate			1.75%
Over-night Borrowings [Member]
Advances from Federal Home Loan Banks, Total					$ 250,000,000	$ 325,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate					1.87%	1.41%
Non Overnight Borrowings [Member]
Advances from Federal Home Loan Banks, Total					$ 75,000,000	$ 105,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate					1.53%	1.41%
Securities Sold under Agreements to Repurchase [Member]
Investment Securities Pledged As Collateral					$ 107,600,000	$ 108,400,000
Non Callable Fixed Rate Securities [Member]
Number Of Securities Sold Under Agreements To Repurchase					2
Fixed Rate Non-callable Securities Sold Under Agreements to Repurchase [Member]
Securities Sold under Agreements to Repurchase, Total						$ 100,000,000
Weighted Average Rate Of Securities Sold Under Agreements						2.86%
Fixed Rate Non-callable Securities Sold Under Agreements to Repurchase [Member] | Mature in June 2018 [Member]
Securities Sold under Agreements to Repurchase, Total					$ 50,000,000
Fixed Rate Non-callable Securities Sold Under Agreements to Repurchase [Member] | Mature in July 2018 [Member]
Securities Sold under Agreements to Repurchase, Total					$ 50,000,000

Note 11 - Income Taxes (Details

Note 11 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent, Total	22.80%	29.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				35.00%
Income Taxes Receivable				$ 7.2
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%

Note 12 - Fair Value Measurem61

Note 12 - Fair Value Measurements (Details Textual) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Warrants	$ 195,000	$ 91,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total	$ 9,291,000	9,442,000
Accounts Receivable Collateral [Member]
Collateral Discount Rates	55.00%
Inventory Collateral [Member]
Collateral Discount Rates	65.00%
Net of Estimated Disposal Costs [Member]
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total	$ 9,300,000	$ 9,400,000
Minimum [Member]
Estimated Sales Cost Applied To Collateral	3.00%
Minimum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input	1
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	2.3
Minimum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	8.99
Maximum [Member]
Estimated Sales Cost Applied To Collateral	6.00%
Maximum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input	6
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	2.94
Maximum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	12.73

Note 12 - Fair Value Measurem62

Note 12 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Debt Securities, Available-for-sale, Total	$ 1,241,105,000	$ 1,333,626,000	$ 1,300,000,000
Equity Securities, FV-NI	24,154,000	28,100,000
Assets, fair value disclosure	1,278,667,000	1,340,767,000
Liabilities, fair value disclosure	927,000	3,161,000
Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total	124,595,000	277,622,000
Equity Securities, FV-NI	24,154,000
Assets, fair value disclosure	148,749,000	277,622,000
Liabilities, fair value disclosure
Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	1,116,510,000	1,056,004,000
Equity Securities, FV-NI
Assets, fair value disclosure	1,129,723,000	1,063,054,000
Liabilities, fair value disclosure	927,000	3,161,000
Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Assets, fair value disclosure	195,000	91,000
Liabilities, fair value disclosure
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Total	124,595,000	249,520,000
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total	124,595,000	249,520,000
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
US Government Corporations and Agencies Securities [Member]
Debt Securities, Available-for-sale, Total	8,695,000	8,988,000
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	8,695,000	8,988,000
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale, Total	385,920,000	390,336,000
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	385,920,000	390,336,000
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale, Total	904,000	1,914,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	904,000	1,914,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Commercial Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale, Total	638,359,000	571,969,000
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	638,359,000	571,969,000
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Collateralized Mortgage Obligations [Member]
Debt Securities, Available-for-sale, Total	1,371,000	1,516,000
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	1,371,000	1,516,000
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale, Total	81,261,000	81,281,000
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total	81,261,000	81,281,000
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Mutual Funds [Member]
Debt Securities, Available-for-sale, Total		6,230,000
Equity Securities, FV-NI	6,129,000
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total		6,230,000
Equity Securities, FV-NI	6,129,000
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Preferred Stock of Government Sponsored Entities [Member]
Debt Securities, Available-for-sale, Total		10,102,000
Equity Securities, FV-NI	6,691,000
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total		10,102,000
Equity Securities, FV-NI	6,691,000
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Preferred Stock of Government Sponsored Entities [Member] | Fair Value, Inputs, Level 3 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Other Equity Securities [Member]
Debt Securities, Available-for-sale, Total		11,770,000
Equity Securities, FV-NI	11,334,000
Other Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-sale, Total		11,770,000
Equity Securities, FV-NI	11,334,000
Other Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-sale, Total
Equity Securities, FV-NI
Other Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Equity Securities, FV-NI
Warrant [Member]
Assets, fair value disclosure	195,000	91,000
Warrant [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure
Warrant [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure
Warrant [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure	195,000	91,000
Interest Rate Swap [Member]
Assets, fair value disclosure	11,674,000	5,218,000
Liabilities, fair value disclosure		2,699,000
Interest Rate Swap [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure
Liabilities, fair value disclosure
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure	11,674,000	5,218,000
Liabilities, fair value disclosure		2,699,000
Interest Rate Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure
Liabilities, fair value disclosure
Foreign Exchange Contract [Member]
Assets, fair value disclosure	1,539,000	1,832,000
Liabilities, fair value disclosure	924,000	453,000
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure
Liabilities, fair value disclosure
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure	1,539,000	1,832,000
Liabilities, fair value disclosure	924,000	453,000
Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure
Liabilities, fair value disclosure
Option Contracts [Member]
Liabilities, fair value disclosure	3,000	9,000
Option Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities, fair value disclosure
Option Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities, fair value disclosure	3,000	9,000
Option Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities, fair value disclosure

Note 12 - Fair Value Measurem63

Note 12 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Non-recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Mar. 31, 2018		Mar. 31, 2017		Dec. 31, 2017		Dec. 31, 2016
Assets, fair value disclosure	$ 1,278,667				$ 1,340,767
Total Losses	206		$ 494		874		$ 1,307
Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	46,221				73,493
Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure	148,749				277,622
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure	1,129,723				1,063,054
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	5,478				5,677
Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure	195				91
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	40,743				67,816
Impaired Loans [Member]
Total Losses			270		25		322
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	33,970				60,911
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	33,970				60,911
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Total Losses			20		25		322
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	220				18,097
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	220				18,097
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Losses			250
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	26,131				31,459
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	26,131				31,459
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Total Losses
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	7,619				11,355
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	7,619				11,355
Other Real Estate Owned [Member]
Total Losses	33	[1]	37	[1]	457	[2]	9	[2]
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	9,821	[1]			9,999	[2]
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure		[1]				[2]
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	5,478	[1]			5,677	[2]
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	4,343	[1]			4,322	[2]
Equity Investments [Member]
Total Losses	173		$ 187		392		$ 976
Equity Investments [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	2,430				2,583
Equity Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Equity Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure
Equity Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, fair value disclosure	$ 2,430				$ 2,583
[1]	Other real estate owned balance of $9.3 million in the condensed consolidated balance sheet is net of estimated disposal costs.
[2]	Other real estate owned balance of $9.4 million in the Consolidated Balance Sheets is net of estimated disposal costs.

Note 13 - Fair Value of Finan64

Note 13 - Fair Value of Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($)		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Cash and due from banks		$ 199,713,000	$ 247,056,000
Securities available-for-sale		1,241,105,000	1,333,626,000	$ 1,300,000,000
Equity securities		24,154,000	28,100,000
Loans held for sale			8,000,000
Loans, net (1)	[1]	12,908,391,000	12,663,049,000
Investment in Federal Home Loan Bank stock		17,250,000	23,085,000
Warrants		11,674,000	5,218,000
Foreign exchange contracts with gain		78,021,000	108,530,000
Foreign exchange contracts with gain, fair value		1,539,000	1,832,000
Interest rate swaps		681,055,000	514,159,000
Interest rate swaps, fair value		11,674,000	5,218,000
Deposits		13,032,828,000	12,700,674,000
Securities sold under agreements to repurchase		99,783,000	100,163,000
Advances from Federal Home Loan Bank		324,548,000	429,482,000
Other borrowings		51,367,000	51,075,000
Long-term debt		141,266,000	141,865,000
Option contracts		1,028,000	1,014,000
Option contracts, fair value		3,000	9,000
Foreign exchange contracts with loss		57,648,000	32,127,000
Foreign exchange contracts with loss, fair value		924,000	453,000
Interest rate swaps			145,399,000
Interest rate swaps, fair value			2,699,000
Commitments to extend credit		2,487,710,000	2,366,368,000
Commitments to extend credit, fair value		(7,711,000)	(7,224,000)
Standby letters of credit		142,674,000	140,814,000
Standby letters of credit, fair value		(1,418,000)	(1,805,000)
Other letters of credit		25,885,000	27,353,000
Other letters of credit, fair value		(13,000)	(52,000)
Bill of lading guarantees		24,000	24,000
Bill of lading guarantees, fair value		0	0
Warrants [Member]
Warrants		195,000
Reported Value Measurement [Member]
Cash and due from banks		199,713,000	247,056,000
Short-term investments and interest bearing deposits		524,012,000	292,745,000
Securities available-for-sale		1,241,105,000	1,333,626,000
Equity securities		24,154,000
Loans held for sale			8,000,000
Loans, net (1)	[2]	12,889,166,000	12,743,766,000
Investment in Federal Home Loan Bank stock		17,250,000	23,085,000
Deposits		13,012,251,000	12,689,893,000
Securities sold under agreements to repurchase		100,000,000	100,000,000
Advances from Federal Home Loan Bank		325,000,000	430,000,000
Other borrowings		53,178,000	52,885,000
Long-term debt		194,136,000	194,136,000
Reported Value Measurement [Member] | Warrants [Member]
Warrants		195,000	91,000
Estimate of Fair Value Measurement [Member]
Cash and due from banks		199,713,000	247,056,000
Short-term investments and interest bearing deposits		524,012,000	292,745,000
Securities available-for-sale		1,241,105,000	1,333,626,000
Equity securities		24,154,000
Loans held for sale			8,000,000
Loans, net (1)	[2]	12,908,391,000	12,663,049,000
Investment in Federal Home Loan Bank stock		17,250,000	23,085,000
Deposits		13,032,828,000	12,700,674,000
Securities sold under agreements to repurchase		99,783,000	100,163,000
Advances from Federal Home Loan Bank		324,548,000	429,482,000
Other borrowings		51,367,000	51,075,000
Long-term debt		141,266,000	141,865,000
Estimate of Fair Value Measurement [Member] | Warrants [Member]
Warrants		$ 195,000	$ 91,000
[1]	In accordance with the prospective adoption of ASU 2016-01, the fair value of loans as of March 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.
[2]	In accordance with the prospective adoption of ASU 2016-01, the fair value of loans as of March 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.

Note 13 - Fair Value of Finan65

Note 13 - Fair Value of Financial Instruments - Fair Value Hierarchy of Financial Instruments (Details) - USD ($)		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Cash and due from banks		$ 199,713,000	$ 247,056,000
Short-term investments and interest bearing deposits		524,012,000	292,745,000
Securities available-for-sale (amortized cost of $1,271,291 at March 31, 2018 and $1,336,345 at December 31, 2017		1,241,105,000	1,333,626,000	$ 1,300,000,000
Equity securities		24,154,000	28,100,000
Loans, net (1)	[1]	12,908,391,000	12,663,049,000
Investment in Federal Home Loan Bank stock		17,250,000	23,085,000
Warrants		11,674,000	5,218,000
Deposits		13,032,828,000	12,700,674,000
Securities sold under agreement to repurchase		99,783,000	100,163,000
Advances from Federal Home Loan Bank		324,548,000	429,482,000
Other borrowings		51,367,000	51,075,000
Long-term debt		141,266,000	141,865,000
Debt Securities, Available-for-sale, Total		1,241,105,000	1,333,626,000	$ 1,300,000,000
Loans held-for-sale			8,000,000
Warrants [Member]
Warrants		195,000
Warrants			91,000
Fair Value, Inputs, Level 1 [Member]
Cash and due from banks		199,713,000	247,056,000
Short-term investments and interest bearing deposits		524,012,000	292,745,000
Securities available-for-sale (amortized cost of $1,271,291 at March 31, 2018 and $1,336,345 at December 31, 2017		124,595,000	277,622,000
Equity securities		24,154,000
Loans, net (1)	[1]
Investment in Federal Home Loan Bank stock
Deposits
Securities sold under agreement to repurchase
Advances from Federal Home Loan Bank
Other borrowings
Long-term debt
Debt Securities, Available-for-sale, Total		124,595,000	277,622,000
Loans held-for-sale
Fair Value, Inputs, Level 1 [Member] | Warrants [Member]
Warrants
Warrants
Fair Value, Inputs, Level 2 [Member]
Cash and due from banks
Short-term investments and interest bearing deposits
Securities available-for-sale (amortized cost of $1,271,291 at March 31, 2018 and $1,336,345 at December 31, 2017		1,116,510,000	1,056,004,000
Equity securities
Loans, net (1)	[1]
Investment in Federal Home Loan Bank stock		17,250,000	23,085,000
Deposits
Securities sold under agreement to repurchase		99,783,000	100,163,000
Advances from Federal Home Loan Bank		324,548,000	429,482,000
Other borrowings
Long-term debt		141,266,000	141,865,000
Debt Securities, Available-for-sale, Total		1,116,510,000	1,056,004,000
Loans held-for-sale
Fair Value, Inputs, Level 2 [Member] | Warrants [Member]
Warrants
Warrants
Fair Value, Inputs, Level 3 [Member]
Cash and due from banks
Short-term investments and interest bearing deposits
Securities available-for-sale (amortized cost of $1,271,291 at March 31, 2018 and $1,336,345 at December 31, 2017
Equity securities
Loans, net (1)	[1]	12,908,391,000	12,663,049,000
Investment in Federal Home Loan Bank stock
Deposits		13,032,828,000	12,700,674,000
Securities sold under agreement to repurchase
Advances from Federal Home Loan Bank
Other borrowings		51,367,000	51,075,000
Long-term debt
Debt Securities, Available-for-sale, Total
Loans held-for-sale			8,000,000
Fair Value, Inputs, Level 3 [Member] | Warrants [Member]
Warrants		$ 195,000
Warrants			$ 91,000
[1]	In accordance with the prospective adoption of ASU 2016-01, the fair value of loans as of March 31, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion.

Note 15 - Financial Derivativ66

Note 15 - Financial Derivatives (Details Textual) - USD ($)	May 31, 2014	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Junior Subordinated Notes, Total	$ 119,100,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		$ 2,193,000	$ 299,000
Cash [Member]
Collateral Already Posted, Aggregate Fair Value		1,300,000		$ 4,500,000
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
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	2.17%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		428,000	(1,900,000)
Net Accrued on Interest Rate Swaps		274,000	479,000
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative Outstanding, Notional Amount		$ 561,900,000	424,200,000
Derivative, Average Fixed Interest Rate		4.60%
Derivative, Average Variable Interest Rate		4.50%
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		$ 11,100,000	1,900,000
Net Accrued on Interest Rate Swaps		229,000	$ 713,000
Derivative, Notional Amount at Origination		$ 561,900,000
Derivative, Average Basis Spread on Variable Rate		2.79%
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative Original Maturity		2 years
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative Original Maturity		10 years
Negative Fair Value [Member]
Notional Amount Of Option Contract		$ 1,000,000		1,000,000
Open Option Contracts Fair Value		3,000		9,000
Sum Of Spot And Forward Contract Notional Amount		57,600,000		32,100,000
Negative Fair Value		924,000		453,000
Positive Fair Value [Member]
Sum Of Spot And Forward Contract Notional Amount		78,000,000		108,500,000
Positive Fair Value		$ 1,500,000		$ 1,800,000

Note 16 - Balance Sheet Offse67

Note 16 - Balance Sheet Offsetting - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivative assets, gross	$ 11,674	$ 5,218
Derivative assets, net	11,674	5,218
Derivative assets not offset	11,674	5,218
Securities sold under agreements to repurchase	100,000	100,000
Securities sold under agreements to repurchase, net	100,000	100,000
Securities sold under agreements to repurchase, collateral posted	$ (100,000)	(100,000)
Derivative liabilities, gross		2,699
Derivative liabilities, net		2,699
Derivatives, collateral posted		$ (2,699)

Note 17 - Revenue from Contra68

Note 17 - Revenue from Contracts with Customers - Summary of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Fees and service charges on deposit accounts	[1]	$ 6,867	$ 6,660
Noninterest income, not in-scope(3)	[2]	(1,557)	58
Total non-interest income		5,310	6,718
Fees and Services Charges on Deposit Account [Member]
Fees and service charges on deposit accounts	[1]	2,318	2,512
Wealth Management Fees [Member]
Fees and service charges on deposit accounts	[1]	1,301	979
Other Service Fees [Member]
Fees and service charges on deposit accounts	[1],[3]	$ 3,248	$ 3,169
[1]	There were no adjustments to the Company's financial statements recorded as a result of the adoption of ASC 606. For comparability, the Company has adjusted prior period amounts to conform to the periods presentation.
[2]	These amounts primarily represent revenue from contracts with customers that are out of the scope of ASC 606.
[3]	Other service fees comprise of immaterial individual revenue streams.

Note 18 - Stockholders' Equit69

Note 18 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Stockholders' Equity Attributable to Parent, Ending Balance	$ 2,009,792		$ 1,973,304
Stockholders' Equity, Period Increase (Decrease), Total	36,500		$ 63,800
Dividends, Common Stock, Cash	19,500
Other Comprehensive Income (Loss), Net of Tax, Total	$ (9,321)	$ 73
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	578,238		943,327
U.S. Treasury [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	1,846,374
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 20.96		$ 20.41
Class of Warrant or Right, Increase in Warrants Exercisable, Percentage			1.03%

Note 18 - Stockholders' Equit70

Note 18 - Stockholders' Equity - Accumulated Other Comprehensive Income (Details) - USD ($)		Jan. 01, 2018	Mar. 31, 2018	Mar. 31, 2017
Beginning balance, loss, net of tax		$ 1,973,304,000	$ 1,973,304,000
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, tax		515,000
Ending balance, loss, net of tax			2,009,792,000
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Beginning balance, loss, net of tax		(1,060,000)	(1,060,000)	$ (1,545,000)
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, tax	[1]		200,000
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, net of tax	[1]		(200,000)
Net unrealized (losses)/gains arising during the period, pre-tax			(16,346,000)	(856,000)
Net unrealized (losses)/gains arising during the period, tax			(4,832,000)	(360,000)
Net unrealized (losses)/gains arising during the period, net of tax			(11,514,000)	(496,000)
Reclassification adjustment for net losses/(gains) included in net income, pre-tax				466,000
Reclassification adjustment for net losses/(gains) included in net income, tax				196,000
Reclassification adjustment for net losses/(gains) included in net income, net of tax				270,000
Total other comprehensive (loss)/income, pre-tax			(16,346,000)	(390,000)
Total other comprehensive (loss)/income, tax			(4,832,000)	(164,000)
Total other comprehensive (loss)/income, net of tax			(11,514,000)	(226,000)
Ending balance, loss, net of tax			(21,333,000)	(1,771,000)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Beginning balance, loss, net of tax		(1,451,000)	(1,451,000)	(2,170,000)
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, tax	[1]		315,000
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, net of tax	[1]		(315,000)
Net unrealized (losses)/gains arising during the period, pre-tax			3,113,000	516,000
Net unrealized (losses)/gains arising during the period, tax			920,000	217,000
Net unrealized (losses)/gains arising during the period, net of tax			2,193,000	299,000
Reclassification adjustment for net losses/(gains) included in net income, pre-tax
Reclassification adjustment for net losses/(gains) included in net income, tax
Reclassification adjustment for net losses/(gains) included in net income, net of tax
Total other comprehensive (loss)/income, pre-tax			3,113,000	516,000
Total other comprehensive (loss)/income, tax			920,000	217,000
Total other comprehensive (loss)/income, net of tax			2,193,000	299,000
Ending balance, loss, net of tax			427,000	(1,871,000)
AOCI Attributable to Parent [Member]
Beginning balance, loss, net of tax		$ (2,511,000)	(2,511,000)	(3,715,000)
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, tax	[1]		515,000
Reclassification adjustment for stranded tax effects of Tax Cuts and Job Act, net of tax	[1]		(515,000)
Reclassification adjustment for equity securities, pre-tax	[2]		(12,151,000)
Reclassification adjustment for equity securities, tax	[2]		(3,592,000)
Reclassification adjustment for equity securities, net of tax	[2]		(8,559,000)
Net unrealized (losses)/gains arising during the period, pre-tax			(13,233,000)	(340,000)
Net unrealized (losses)/gains arising during the period, tax			(3,912,000)	(143,000)
Net unrealized (losses)/gains arising during the period, net of tax			(9,321,000)	(197,000)
Reclassification adjustment for net losses/(gains) included in net income, pre-tax				466,000
Reclassification adjustment for net losses/(gains) included in net income, tax				196,000
Reclassification adjustment for net losses/(gains) included in net income, net of tax				270,000
Total other comprehensive (loss)/income, pre-tax			(13,233,000)	126,000
Total other comprehensive (loss)/income, tax			(3,912,000)	53,000
Total other comprehensive (loss)/income, net of tax			(9,321,000)	73,000
Ending balance, loss, net of tax			$ (20,906,000)	$ (3,642,000)
[1]	These amounts were recorded as of January 1, 2018 as a result of the adoption of ASU 2018-2.
[2]	This amount was recorded as of January 1, 2018 as a result of the adoption of ASU 2016-1.

Note 19 - Stock Repurchase Pr71

Note 19 - Stock Repurchase Program (Details Textual) - February 2016 Repurchase Program [Member] - USD ($) $ / shares in Units, $ in Millions	Feb. 01, 2016	Mar. 31, 2018	Dec. 31, 2017
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	45,000,000
Treasury Stock, Shares, Acquired	1,380,578
Treasury Stock, Value, Acquired, Cost Method	$ 37.5
Treasury Stock Acquired, Average Cost Per Share	$ 27.13
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		7,500,000	7,500,000