Boston Private Financial (BPFH) 10-Q 2 Aug 17 2017 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document Information [Line Items]
Entity Registrant Name	BOSTON PRIVATE FINANCIAL HOLDINGS INC
Entity Central Index Key	821,127
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		84,082,614

Consolidated Balance Sheets Sta

Consolidated Balance Sheets Statement - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets:
Cash and cash equivalents	$ 97,032	$ 106,557
Investment securities available-for-sale (amortized cost of $1,197,171 and $1,283,161 at June 30, 2017 and December 31, 2016, respectively)	1,188,720	1,264,132
Investment securities held-to-maturity (fair value of $98,713 and $92,604 at June 30, 2017 and December 31, 2016, respectively)	99,024	93,079
Stock in Federal Home Loan Banks	45,568	44,077
Loans held for sale	2,870	3,464
Total loans	6,279,928	6,114,354
Less: Allowance for loan losses	75,009	78,077
Net loans	6,204,919	6,036,277
Other real estate owned (“OREO”)	0	1,690
Premises and equipment, net	34,135	31,827
Goodwill	142,554	142,554
Intangible assets, net	23,873	26,725
Fees receivable	12,639	13,400
Accrued interest receivable	20,680	20,479
Deferred income taxes, net	49,827	55,460
Other assets	185,805	130,753
Total assets	8,107,646	7,970,474
Liabilities:
Deposits	6,381,339	6,085,146
Securities sold under agreements to repurchase	29,232	59,624
Federal funds purchased	40,000	80,000
Federal Home Loan Bank borrowings	618,989	734,205
Junior subordinated debentures	106,363	106,363
Other liabilities	115,088	119,683
Total liabilities	7,291,011	7,185,021
Redeemable Noncontrolling Interests	17,216	16,972
Stockholders’ Equity:
Preferred stock, $1.00 par value; authorized: 2,000,000 shares; Series D, 6.95% Non-Cumulative Perpetual, issued and outstanding: 50,000 shares at June 30, 2017 and December 31, 2016; liquidation preference: $1,000 per share	47,753	47,753
Common stock, $1.00 par value; authorized: 170,000,000 shares; issued and outstanding: 84,015,141 shares at June 30, 2017 and 83,731,769 shares at December 31, 2016	84,015	83,732
Additional paid-in capital	602,507	597,454
Retained earnings	66,807	47,929
Accumulated other comprehensive income/ (loss)	(6,038)	(12,548)
Total Company's shareholders’ equity	795,044	764,320
Noncontrolling interests	4,375	4,161
Total shareholders' equity	799,419	768,481
Total liabilities, redeemable noncontrolling interests and shareholders’ equity	$ 8,107,646	$ 7,970,474

Consolidated Balance Sheets Par

Consolidated Balance Sheets Parentheticals - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Investment securities available for sale at amortized cost	$ 1,197,171	$ 1,283,161
Investment securities held to maturity at fair value	$ 98,713	$ 92,604
Preferred Stock, Par or Stated Value Per Share	$ 1	$ 1
Preferred Stock, Shares Authorized	2,000,000	2,000,000
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	170,000,000	170,000,000
Common Stock, Shares, Issued	84,134,104	83,731,769
Common Stock, Shares, Outstanding	84,134,104	83,731,769
Series D Preferred Stock [Member]
Preferred Stock, Shares Issued	50,000	50,000
Preferred Stock, Shares Outstanding	50,000	50,000
Preferred Stock, Liquidation Preference Per Share	$ 1,000	$ 1,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest and dividend income:
Loans		$ 57,736	$ 49,731	$ 111,372	$ 99,777
Taxable investment securities		1,592	1,507	3,262	3,101
Non-taxable investment securities		1,655	1,400	3,261	2,790
Mortgage-backed securities		3,495	2,982	6,999	6,047
Federal funds sold and other		831	405	1,431	912
Total interest and dividend income		65,309	56,025	126,325	112,627
Interest expense:
Deposits		4,949	4,075	9,480	8,257
Federal Home Loan Bank borrowings		2,489	2,139	4,600	4,092
Junior subordinated debentures		716	584	1,387	1,162
Repurchase agreements and other short-term borrowings		10	58	71	68
Total interest expense		8,164	6,856	15,538	13,579
Net interest income		57,145	49,169	110,787	99,048
Provision/ (credit) for loan losses		(6,114)	(2,535)	(6,295)	(5,668)
Net interest income after provision/ (credit) for loan losses		63,259	51,704	117,082	104,716
Fees and other income:
Investment management fees		11,081	10,627	21,920	21,285
Wealth advisory fees		12,961	12,551	25,784	25,263
Wealth management and trust fees		11,161	11,208	21,987	22,124
Other banking fee income		1,964	2,982	3,658	6,215
Gain on sale of loans, net		59	197	197	406
Gain/ (loss) on sale of investments, net		237	245	256	246
Gain/ (loss) on OREO, net		0	0	(46)	280
Other		555	(1,015)	768	(1,002)
Total fees and other income		38,018	36,795	74,524	74,817
Operating expense:
Salaries and employee benefits		43,493	40,614	89,318	83,174
Occupancy and equipment		10,779	9,928	21,428	19,515
Professional services		3,106	3,015	6,420	6,530
Marketing and business development		1,971	1,811	3,631	3,981
Contract services and data processing		1,641	1,737	3,221	3,416
Amortization of intangibles		1,426	1,586	2,852	3,172
FDIC insurance		879	1,015	1,645	2,035
Restructuring		0	905	0	2,017
Other		4,526	4,120	8,086	7,600
Total operating expense		67,821	64,731	136,601	131,440
Income before income taxes		33,456	23,768	55,005	48,093
Income tax expense		9,963	7,626	16,516	15,064
Net income from continuing operations		23,493	16,142	38,489	33,029
Net income from discontinued operations		1,063	1,245	2,695	3,310
Net income before attrubution to noncontrolling interests		24,556	17,387	41,184	36,339
Less: Net income attributable to noncontrolling interests		(1,150)	(989)	(2,116)	(1,900)
Net income attributable to the Company		23,406	16,398	39,068	34,439
Adjustments to net income attributable to the Company to arrive at net income attributable to common shareholders		(577)	(970)	(1,743)	(1,259)
Net income attributable to common shareholders for earnings per share calculation		$ 22,829	$ 15,428	$ 37,325	$ 33,180
Basic earnings per share attributable to common shareholders:
From continuing operations:		$ 0.27	$ 0.17	$ 0.42	$ 0.37
From discontinued operations:		0.01	0.02	0.03	0.04
Total attributable to common shareholders:		0.28	0.19	0.45	0.41
Diluted earnings per share attributable to common shareholders:
From continuing operations:		0.26	0.17	0.41	0.36
From discontinued operations:		0.01	0.01	0.03	0.04
Total attributable to common shareholders:		$ 0.27	$ 0.18	$ 0.44	$ 0.40
Common Stock [Member]
Basic earnings per share attributable to common shareholders:
Weighted average basic common shares outstanding		82,298,493	81,236,809	82,125,795	81,269,154
Diluted earnings per share attributable to common shareholders:
Weighted average diluted common shares outstanding	[1]	84,741,680	83,519,939	84,658,309	83,391,057
[1]	The diluted EPS computations for the three and six months ended June 30, 2017 and 2016 do not assume the conversion, exercise, or contingent issuance of the following shares for the following periods because the result would have been anti-dilutive for the periods indicated. As a result of the anti-dilution, the potential common shares excluded from the diluted EPS computation are as follows: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016Shares excluded due to exercise price exceeding the average market price of common shares during the period (total outstanding):(In thousands)Potential common shares from: Stock options54 315 87 243Total shares excluded due to exercise price exceeding the average market price of common shares during the period54 315 87 243

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income attributable to the Company	$ 23,406	$ 16,398	$ 39,068	$ 34,439
Other comprehensive income/ (loss), net of tax [Abstract]
Unrealized gain/ (loss) on securities available-for-sale	4,380	6,210	6,474	15,298
Reclassification adjustment for net realized gain/ (loss) included in net income	(141)	(157)	(152)	(158)
Net unrealized gain/ (loss) on securities available-for-sale	4,239	6,053	6,322	15,140
Unrealized gain/ (loss) on cash flow hedges	(246)	(352)	(210)	(1,498)
Reclassification adjustment for net realized gain/ (loss) included in net income	206	266	386	512
Net change in unrealized gain/ (loss) on cash flow hedges	(40)	(86)	176	(986)
Net unrealized gain/ (loss) on other	0	0	12	0
Other comprehensive income/ (loss), net of tax	4,199	5,967	6,510	14,154
Total comprehensive income, attributable to the Company, net	$ 27,605	$ 22,365	$ 45,578	$ 48,593

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock Including Additional Paid in Capital [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2015	$ 746,613	$ 47,753	$ 83,411	$ 600,670	$ 12,886	$ (1,500)	$ 3,393
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to the Company	34,439	0	0	0	34,439	0	0
Other comprehensive income/ (loss), net of tax	14,154	0	0	0	0	14,154	0
Dividends paid to common shareholders	(16,602)	0	0	0	(16,602)	0	0
Dividends paid to preferred shareholders	(1,738)	0	0	0	(1,738)	0	0
Net Change in Noncontrolling Interests	(14)	0	0	0	0	0	(14)
Stock Repurchased During Period, Value	(4,495)	0	(399)	(4,096)	0	0	0
Net proceeds from issuance of [Abstract]
Net proceeds from issuance of common stock	738	0	76	662	0	0	0
Issuance of shares through incentive stock grants, net of shares forfeited, canceled, or withheld for employee taxes, value	(738)	0	221	(959)	0	0	0
Amortization of stock compensation and employee stock purchase plan	372	0	0	372	0	0	0
Stock options exercised	529	0	71	458	0	0	0
Tax benefit/ (deficiency) from certain stock compensation awards	(749)	0	0	(749)	0	0	0
Other equity adjustments	1,631	0	0	1,631	0	0	0
Ending Balance at Jun. 30, 2016	774,140	47,753	83,380	597,989	28,985	12,654	3,379
Beginning Balance at Dec. 31, 2016	768,481	47,753	83,732	597,454	47,929	(12,548)	4,161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to the Company	39,068	0	0	0	39,068	0	0
Other comprehensive income/ (loss), net of tax	6,510	0	0	0	0	6,510	0
Dividends paid to common shareholders	(18,452)	0	0	0	(18,452)	0	0
Dividends paid to preferred shareholders	(1,738)	0	0	0	(1,738)	0	0
Net Change in Noncontrolling Interests	214	0	0	0	0	0	214
Net proceeds from issuance of [Abstract]
Net proceeds from issuance of common stock	721	0	73	648	0	0	0
Issuance of shares through incentive stock grants, net of shares forfeited, canceled, or withheld for employee taxes, value	(969)	0	(150)	(819)	0	0	0
Exercise of warrants	1,877	0	261	1,616	0	0	0
Amortization of stock compensation and employee stock purchase plan	4,137	0	0	4,137	0	0	0
Stock options exercised	804	0	99	705	0	0	0
Other equity adjustments	(1,234)	0	0	(1,234)	0	0	0
Ending Balance at Jun. 30, 2017	$ 799,419	$ 47,753	$ 84,015	$ 602,507	$ 66,807	$ (6,038)	$ 4,375

Consolidated Statements of Sto7

Consolidated Statements of Stockholders' Equity Parentheticals - $ / shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Shares of common stock issued	72,811	76,611
Stock Repurchased During Period, Shares	0	(399,442)
Stock Issued During Period, Shares, Share-based Compensation, Gross	0	587,628
Stock Issued During Period, Shares, Share-based Compensation, Forfeited	(87,419)	(303,583)
Shares of stock withheld for employee taxes	(62,087)	(63,235)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.22	$ 0.20

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income attributable to the Company	$ 39,068	$ 34,439
Adjustments to arrive at net income from continuing operations [Abstract]
Net income attributable to noncontrolling interests	2,116	1,900
Less: Net income from discontinued operations	(2,695)	(3,310)
Net income from continuing operations	38,489	33,029
Adjustments to reconcile net income from continuing operations to net cash provided by/(used in) operating activities:
Depreciation and amortization	10,575	10,927
Net income attributable to noncontrolling interests	2,116	1,900
Stock compensation, net of cancellations	4,137	372
Provision/ (credit) for loan losses	(6,295)	(5,668)
Loans originated for sale	(19,814)	(39,923)
Proceeds from sale of loans held for sale	20,605	43,724
Deferred income tax expense/ (benefit)	1,240	4,624
Net decrease/ (increase) in other operating activities	(6,434)	(3,472)
Net cash provided by/ (used in) operating activities of continuing operations	40,387	41,713
Net cash provided by/ (used in) operating activities of discontinued operations	2,695	3,310
Net cash provided by/ (used in) operating activities	43,082	45,023
Investment securities available for sale:
Purchases	(99,647)	(196,651)
Sales	103,031	29,132
Maturities, calls, redemptions, and principal payments	78,610	82,420
Purchases	14,945	0
Principal payments	8,745	10,698
(Investments)/ distributions in trusts, net	(514)	(392)
Purchase of additional Bank Owned Life Insurance (BOLI)	(50,000)	0
(Purchase)/ redemption of Federal Home Loan Banks stock	(1,491)	(9,193)
Net (increase)/ decrease in portfolio loans	(165,426)	(37,832)
Proceeds from recoveries of loans previously charged-off	3,748	5,956
Proceeds from sale of OREO	1,644	958
Capital expenditures, net of sale proceeds	(6,298)	(5,053)
Net cash provided by/ (used in) investing activities of continuing operations	(142,543)	(119,957)
Net cash provided by/ (used in) investing activities	(142,543)	(119,957)
Cash flows from financing activities:
Net increase/ (decrease) in deposits	296,193	(393,787)
Net increase/ (decrease) in securities sold under agreements to repurchase	(30,392)	(14,911)
Net increase/ (decrease) in federal funds purchased	(40,000)	180,000
Net increase/ (decrease) in short-term Federal Home Loan Bank borrowings	(90,000)	235,000
Advances of long-term Federal Home Loan Bank borrowings	46,235	47,434
Repayments of long-term Federal Home Loan Bank borrowings	(71,451)	(65,746)
Dividends paid to common shareholders	(18,452)	(16,602)
Dividends paid to preferred shareholders	(1,738)	(1,738)
Proceeds from warrant exercises	1,877	0
Repurchase of common stock	0	(4,495)
Tax benefit/ (deficiency) from certain stock compensation awards	0	(749)
Proceeds from stock option exercises	804	529
Proceeds from issuance of common stock, net	(248)	0
Distributions paid to noncontrolling interests	(2,064)	(1,844)
Other equity adjustments	(828)	(684)
Net cash provided by/ (used in) financing activities of continuing operations	89,936	(37,593)
Net cash provided by/ (used in) financing activities	89,936	(37,593)
Net increase/ (decrease) in cash and cash equivalents	(9,525)	(112,527)
Cash and cash equivalents at beginning of year	106,557	238,694
Cash and cash equivalents at end of period	97,032	126,167
Supplementary schedule of non-cash investing and financing activities:
Cash paid for interest	15,591	13,646
Cash paid for income taxes, net of (refunds received)	16,600	20,834
Change in unrealized gain/ (loss) on available-for-sale securities, net of tax	6,322	15,140
Change in unrealized gain/ (loss) on cash flow hedges, net of tax	176	(986)
Change in unrealized gain/ (loss) on other, net of tax	12	0
Loans transferred into other real estate owned from loan portfolio	0	1,944
Loans charged-off	(521)	(3,035)
Premises and equipment transferred into/ (out of) other assets held for sale	0	891
Deposits transferred into/(out of) held for sale	$ 0	$ 110,558

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2017
Basis of Presentation and Summary of Significant Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Text Block]	Basis of Presentation and Summary of Significant Accounting Policies Boston Private Financial Holdings, Inc. (the “Company” or “BPFH”), is a bank holding company (the “Holding Company”) with four reportable segments: Private Banking, Wealth Management and Trust, Investment Management, and Wealth Advisory. The Private Banking segment is comprised of the banking operations of Boston Private Bank & Trust Company (the “Bank” or “Boston Private Bank”), a trust company chartered by The Commonwealth of Massachusetts, insured by the Federal Deposit Insurance Corporation (the “FDIC”), and a wholly-owned subsidiary of the Company. On July 28, 2017, Boston Private Bank became a member of the Federal Reserve Bank of Boston. Boston Private Bank currently operates in three geographic markets: New England, the San Francisco Bay Area, and Southern California. The Wealth Management and Trust segment is comprised of the operations of Boston Private Wealth LLC (“Boston Private Wealth”), a wholly-owned subsidiary of Boston Private Bank, and the trust operations of Boston Private Bank. The segment offers investment management, wealth management, family office, and trust services to individuals, families, and institutions. The Wealth Management and Trust segment operates in New England; South Florida; California; and Madison, Wisconsin. The Investment Management segment has two consolidated affiliates, consisting of Dalton, Greiner, Hartman, Maher & Co., LLC (“DGHM”) and Anchor Capital Advisors, LLC (“Anchor”) (together, the “Investment Managers”). The Wealth Advisory segment has two consolidated affiliates, consisting of KLS Professional Advisors Group, LLC (“KLS”) and Bingham, Osborn & Scarborough, LLC (“BOS”) (together, the “Wealth Advisors” and, together with the Wealth Management and Trust and Investment Management segments, the “Wealth and Investment businesses”). The Company conducts substantially all of its business through its four reportable segments. All significant intercompany accounts and transactions have been eliminated in consolidation. The unaudited interim consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”), and include all necessary adjustments of a normal recurring nature which, in the opinion of management, are required for a fair presentation of the results of operations and financial condition of the Company. The interim results of consolidated operations are not necessarily indicative of the results for the entire year. The information in this report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2016 , as filed with the Securities and Exchange Commission (“SEC”). Prior period amounts are reclassified whenever necessary to conform to the current period presentation. The Company’s significant accounting policies are described in Part II. Item 8. “Financial Statements and Supplementary Data - Note 1: Basis of Presentation and Summary of Significant Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 , as filed with the SEC. For interim reporting purposes, the Company follows the same significant accounting policies, except for the new accounting pronouncements from the Financial Accounting Standards Board (the “FASB”) that were adopted effective January 1, 2017, Accounting Standards Update (“ASU”) 2016-09, Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”), and ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2016-09 had no cumulative effect on prior periods, and for cash flow purposes the provisions were adopted prospectively. The Company elected to early adopt ASU 2017-04 as of January 1, 2017, and the adoption of ASU 2017-04 could increase or decrease the amount of a goodwill impairment charge should any of the Company’s reporting units with goodwill fail a Step 1 test in the future, as compared to the amount of a goodwill impairment charge under the existing standards depending on the fair value of the reporting unit’s assets.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Earnings Per Share The treasury stock method of calculating earnings per share (“EPS”) is presented below for the three and six months ended June 30, 2017 and 2016 . The following tables present the computations of basic and diluted EPS: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands, except share and per share data) Basic earnings per share - Numerator: Net income from continuing operations $ 23,493 $ 16,142 $ 38,489 $ 33,029 Less: Net income attributable to noncontrolling interests 1,150 989 2,116 1,900 Net income from continuing operations attributable to the Company 22,343 15,153 36,373 31,129 Decrease/ (increase) in noncontrolling interests’ redemption values (1) 292 (101 ) (5 ) 479 Dividends on preferred stock (869 ) (869 ) (1,738 ) (1,738 ) Total adjustments to income attributable to common shareholders (577 ) (970 ) (1,743 ) (1,259 ) Net income from continuing operations attributable to common shareholders, treasury stock method 21,766 14,183 34,630 29,870 Net income from discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to common shareholders, treasury stock method $ 22,829 $ 15,428 $ 37,325 $ 33,180 Basic earnings per share - Denominator: Weighted average basic common shares outstanding 82,298,493 81,236,809 82,125,795 81,269,154 Per share data - Basic earnings per share from: Continuing operations $ 0.27 $ 0.17 $ 0.42 $ 0.37 Discontinued operations $ 0.01 $ 0.02 $ 0.03 $ 0.04 Total attributable to common shareholders $ 0.28 $ 0.19 $ 0.45 $ 0.41 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands, except share and per share data) Diluted earnings per share - Numerator: Net income from continuing operations attributable to common shareholders, after assumed dilution $ 21,766 $ 14,183 $ 34,630 $ 29,870 Net income from discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to common shareholders, after assumed dilution $ 22,829 $ 15,428 $ 37,325 $ 33,180 Diluted earnings per share - Denominator: Weighted average basic common shares outstanding 82,298,493 81,236,809 82,125,795 81,269,154 Dilutive effect of: Stock options, performance-based and time-based restricted stock, and performance-based and time-based restricted stock units, and other dilutive securities (2) 1,338,939 1,058,425 1,394,605 1,019,488 Warrants to purchase common stock (2) 1,104,248 1,224,705 1,137,909 1,102,415 Dilutive common shares 2,443,187 2,283,130 2,532,514 2,121,903 Weighted average diluted common shares outstanding (2) 84,741,680 83,519,939 84,658,309 83,391,057 Per share data - Diluted earnings per share from: Continuing operations $ 0.26 $ 0.17 $ 0.41 $ 0.36 Discontinued operations $ 0.01 $ 0.01 $ 0.03 $ 0.04 Total attributable to common shareholders $ 0.27 $ 0.18 $ 0.44 $ 0.40 Dividends per share declared and paid on common stock $ 0.11 $ 0.10 $ 0.22 $ 0.20 _____________________ (1) See Part II. Item 8. “Financial Statements and Supplementary Data—Note 14: Noncontrolling Interests” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 for a description of the redemption values related to the redeemable noncontrolling interests. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 480, Distinguishing Liabilities from Equity (“ASC 480”), an increase in redemption value from period to period reduces income attributable to common shareholders. Decreases in redemption value from period to period increase income attributable to common shareholders, but only to the extent that the cumulative change in redemption value remains a cumulative increase since adoption of this standard in the first quarter of 2009. (2) The diluted EPS computations for the three and six months ended June 30, 2017 and 2016 do not assume the conversion, exercise, or contingent issuance of the following shares for the following periods because the result would have been anti-dilutive for the periods indicated. As a result of the anti-dilution, the potential common shares excluded from the diluted EPS computation are as follows: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Shares excluded due to exercise price exceeding the average market price of common shares during the period (total outstanding): (In thousands) Potential common shares from: Stock options 54 315 87 243 Total shares excluded due to exercise price exceeding the average market price of common shares during the period 54 315 87 243

Reportable Segments

Reportable Segments	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	Reportable segments Management Reporting The Company has four reportable segments (Private Banking, Wealth Management and Trust, Investment Management, and Wealth Advisory) and the Holding Company (Boston Private Financial Holdings, Inc.). The financial performance of the Company is managed and evaluated by these five areas, including the four reportable segments. The segments are managed separately as a result of the concentrations in each function. Measurement of Segment Profit and Assets The accounting policies of the segments are the same as those described in Part II. Item 8. “Financial Statements and Supplementary Data - Note 1: Basis of Presentation and Summary of Significant Accounting Policies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . Revenues, expenses, and assets are recorded by each segment, and separate financial statements are reviewed by their management and the Company’s segment chief executive officers. Reconciliation of Reportable Segment Items The following tables present a reconciliation of the revenues, profits, assets, and other significant items of reportable segments as of and for the three and six months ended June 30, 2017 and 2016 . Interest expense on junior subordinated debentures is reported at the Holding Company. Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Private Banking (In thousands) Net interest income $ 57,783 $ 49,713 $ 112,039 $ 100,133 Fees and other income 2,634 2,227 4,462 5,605 Total revenues 60,417 51,940 116,501 105,738 Provision/ (credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Operating expense 36,904 32,093 71,962 63,368 Income before income taxes 29,627 22,382 50,834 48,038 Income tax expense 9,209 7,038 15,478 15,412 Net income from continuing operations 20,418 15,344 35,356 32,626 Net income attributable to the Company $ 20,418 $ 15,344 $ 35,356 $ 32,626 Assets $ 7,951,911 $ 7,417,465 $ 7,951,911 $ 7,417,465 Depreciation $ 1,343 $ 1,125 $ 2,714 $ 2,271 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Wealth Management and Trust (In thousands) Fees and other income $ 11,274 $ 11,300 $ 22,195 $ 22,356 Operating expense (1) 11,937 13,738 25,810 29,590 Income/ (loss) before income taxes (663 ) (2,438 ) (3,615 ) (7,234 ) Income tax expense/ (benefit) (239 ) (970 ) (1,405 ) (2,909 ) Net income/ (loss) from continuing operations (424 ) (1,468 ) (2,210 ) (4,325 ) Net income/ (loss) attributable to the Company $ (424 ) $ (1,468 ) $ (2,210 ) $ (4,325 ) Assets $ 74,842 $ 86,397 $ 74,842 $ 86,397 Amortization of intangibles $ 727 $ 745 $ 1,454 $ 1,490 Depreciation $ 341 $ 269 $ 678 $ 500 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Investment Management (In thousands) Net interest income $ 4 $ 4 $ 8 $ 8 Fees and other income 11,091 10,646 21,950 21,305 Total revenues 11,095 10,650 21,958 21,313 Operating expense 8,346 7,895 16,700 15,919 Income before income taxes 2,749 2,755 5,258 5,394 Income tax expense 894 898 1,738 1,777 Net income from continuing operations 1,855 1,857 3,520 3,617 Noncontrolling interests 512 469 974 946 Net income attributable to the Company $ 1,343 $ 1,388 $ 2,546 $ 2,671 Assets $ 91,915 $ 93,975 $ 91,915 $ 93,975 Amortization of intangibles $ 651 $ 651 $ 1,301 $ 1,301 Depreciation $ 61 $ 74 $ 127 $ 147 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Wealth Advisory (In thousands) Net interest income $ 29 $ 4 $ 46 $ 7 Fees and other income 12,980 12,579 25,823 25,321 Total revenues 13,009 12,583 25,869 25,328 Operating expense 8,943 9,171 18,386 18,865 Income before income taxes 4,066 3,412 7,483 6,463 Income tax expense 1,511 1,266 2,798 2,414 Net income from continuing operations 2,555 2,146 4,685 4,049 Noncontrolling interests 638 520 1,142 954 Net income attributable to the Company $ 1,917 $ 1,626 $ 3,543 $ 3,095 Assets $ 75,247 $ 76,370 $ 75,247 $ 76,370 Amortization of intangibles $ 48 $ 190 $ 97 $ 381 Depreciation $ 235 $ 220 $ 461 $ 435 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Holding Company and Eliminations (In thousands) Net interest income $ (671 ) $ (552 ) $ (1,306 ) $ (1,100 ) Fees and other income 39 43 94 230 Total revenues (632 ) (509 ) (1,212 ) (870 ) Operating expense 1,691 1,834 3,743 3,698 Income/ (loss) before income taxes (2,323 ) (2,343 ) (4,955 ) (4,568 ) Income tax expense/ (benefit) (1,412 ) (606 ) (2,093 ) (1,630 ) Net income/ (loss) from continuing operations (911 ) (1,737 ) (2,862 ) (2,938 ) Discontinued operations 1,063 1,245 2,695 3,310 Net income/ (loss) attributable to the Company $ 152 $ (492 ) $ (167 ) $ 372 Assets $ (86,269 ) $ (94,606 ) $ (86,269 ) $ (94,606 ) Depreciation $ — $ 10 $ — $ 21 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Total Company (In thousands) Net interest income $ 57,145 $ 49,169 $ 110,787 $ 99,048 Fees and other income 38,018 36,795 74,524 74,817 Total revenues 95,163 85,964 185,311 173,865 Provision/ (credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Operating expense 67,821 64,731 136,601 131,440 Income before income taxes 33,456 23,768 55,005 48,093 Income tax expense 9,963 7,626 16,516 15,064 Net income from continuing operations 23,493 16,142 38,489 33,029 Noncontrolling interests 1,150 989 2,116 1,900 Discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to the Company $ 23,406 $ 16,398 $ 39,068 $ 34,439 Assets $ 8,107,646 $ 7,579,601 $ 8,107,646 $ 7,579,601 Amortization of intangibles $ 1,426 $ 1,586 $ 2,852 $ 3,172 Depreciation $ 1,980 $ 1,698 $ 3,980 $ 3,374 _____________________ (1) Operating expense related to the Wealth Management and Trust segment includes no restructuring expense for the three and six months ended June 30, 2017 , respectively, and $0.9 million and $2.0 million of restructuring expenses for the three months and six months ended June 30, 2016 , respectively.

Investments

Investments	6 Months Ended
	Jun. 30, 2017
Investments [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Investments The following table presents a summary of investment securities: Amortized Cost Unrealized Fair Value Gains Losses (In thousands) As of June 30, 2017 Available-for-sale securities at fair value: U.S. government and agencies $ 35,214 $ 38 $ (593 ) $ 34,659 Government-sponsored entities 305,318 997 (1,185 ) 305,130 Municipal bonds 294,616 4,674 (2,187 ) 297,103 Mortgage-backed securities (1) 557,148 785 (11,429 ) 546,504 Other 4,875 454 (5 ) 5,324 Total $ 1,197,171 $ 6,948 $ (15,399 ) $ 1,188,720 Held-to-maturity securities at amortized cost: U.S. government and agencies $ 14,975 $ — (4 ) $ 14,971 Mortgage-backed securities (1) $ 84,049 $ 75 $ (382 ) $ 83,742 Total $ 99,024 $ 75 $ (386 ) $ 98,713 As of December 31, 2016 Available-for-sale securities at fair value: U.S. government and agencies $ 40,704 $ 86 $ (854 ) $ 39,936 Government-sponsored entities 337,865 1,058 (2,259 ) 336,664 Municipal bonds 296,271 2,116 (4,990 ) 293,397 Mortgage-backed securities (1) 584,960 928 (15,561 ) 570,327 Other 23,361 447 — 23,808 Total $ 1,283,161 $ 4,635 $ (23,664 ) $ 1,264,132 Held-to-maturity securities at amortized cost: Mortgage-backed securities (1) $ 93,079 $ 1 $ (476 ) $ 92,604 Total $ 93,079 $ 1 $ (476 ) $ 92,604 _____________________ (1) All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities. The following table presents the maturities of available-for-sale investment securities, based on contractual maturity, as of June 30, 2017 . Certain securities are callable before their final maturity. Additionally, certain securities (such as mortgage-backed securities) are shown within the table below based on their final (contractual) maturity, but due to prepayments and amortization are expected to have shorter lives. Available-for-sale Securities Amortized cost Fair value (In thousands) Within one year $ 47,251 $ 47,738 After one, but within five years 334,792 336,184 After five, but within ten years 334,083 327,470 Greater than ten years 481,045 477,328 Total $ 1,197,171 $ 1,188,720 The following table presents the maturities of held-to-maturity investment securities, based on contractual maturity, as of June 30, 2017 . Held-to-maturity Securities Amortized cost Fair value (In thousands) Within one year $ 14,975 $ 14,971 After one, but within five years — — After five, but within ten years 14,327 14,300 Greater than ten years 69,722 69,442 Total $ 99,024 $ 98,713 The following table presents the proceeds from sales, gross realized gains and gross realized losses for available-for-sale securities that were sold or called during the following periods: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Proceeds from sales and calls $ 70,314 $ 13,840 $ 103,031 $ 29,132 Realized gains 255 245 274 247 Realized losses (18 ) — (18 ) (1 ) The following tables present information regarding securities as of June 30, 2017 and December 31, 2016 having temporary impairment, due to the fair values having declined below the amortized cost of the individual securities, and the time period that the investments have been temporarily impaired. Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses # of securities June 30, 2017 Available-for-sale securities (In thousands) U.S. government and agencies $ 24,367 $ (587 ) $ 292 $ (6 ) $ 24,659 $ (593 ) 4 Government-sponsored entities 97,093 (1,185 ) — — 97,093 (1,185 ) 15 Municipal bonds 74,816 (2,144 ) 2,020 (43 ) 76,836 (2,187 ) 47 Mortgage-backed securities (1) 457,585 (9,874 ) 45,366 (1,555 ) 502,951 (11,429 ) 103 Other 16 (5 ) — — 16 (5 ) 2 Total $ 653,877 $ (13,795 ) $ 47,678 $ (1,604 ) $ 701,555 $ (15,399 ) 171 Held-to-maturity securities U.S. government and agencies 14,971 (4 ) — — 14,971 (4 ) 4 Mortgage-backed securities (1) $ 66,362 $ (382 ) $ — $ — $ 66,362 $ (382 ) 13 Total $ 81,333 $ (386 ) $ — $ — $ 81,333 $ (386 ) 17 Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses # of securities (In thousands, except number of securities) December 31, 2016 Available-for-sale securities U.S. government and agencies $ 19,094 $ (838 ) $ 643 $ (16 ) $ 19,737 $ (854 ) 4 Government-sponsored entities 125,412 (2,259 ) — — 125,412 (2,259 ) 18 Municipal bonds 182,395 (4,957 ) 2,720 (33 ) 185,115 (4,990 ) 109 Mortgage-backed securities (1) 492,008 (13,988 ) 41,544 (1,573 ) 533,552 (15,561 ) 99 Other — — — — — — — Total $ 818,909 $ (22,042 ) $ 44,907 $ (1,622 ) $ 863,816 $ (23,664 ) 230 Held-to-maturity securities Mortgage-backed securities (1) $ 87,483 $ (476 ) $ — $ — $ 87,483 $ (476 ) 15 Total $ 87,483 $ (476 ) $ — $ — $ 87,483 $ (476 ) 15 _____________________ (1) All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities. As of June 30, 2017 , the U.S. government and agencies securities in the table above had current Standard and Poor’s credit ratings of at least AA+. The mortgage-backed securities in the table above had current Standard and Poor’s credit ratings of at least AA. The municipal bonds in the table above had a current Standard and Poor’s credit rating of at least AA- or a current Moody’s credit rating of at least Aa2. The other securities consisted of equity securities. At June 30, 2017 , the Company does not consider these investments other-than-temporarily impaired because the decline in fair value on investments is primarily attributed to changes in interest rates and not credit quality. As of December 31, 2016 , the U.S. government and agencies, and mortgage-backed securities in the table above had current Standard and Poor’s credit ratings of AAA. The municipal bonds in the table above had a current Standard and Poor’s credit rating of at least AA-. The other securities consisted of equity securities. At June 30, 2017 and December 31, 2016 , the amount of investment securities in an unrealized loss position greater than 12 months, as well as in total, was primarily due to changes in interest rates. As of June 30, 2017 , the Company had no intent to sell any securities in an unrealized loss position and it is not more likely than not that the Company would be forced to sell any of these securities prior to the full recovery of all unrealized loss amounts. Cost method investments, which are included in other assets, can be temporarily impaired when the fair values decline below the amortized costs of the individual investments. There were no cost method investments with unrealized losses as of June 30, 2017 or December 31, 2016 . The Company’s cost method investments primarily include low income housing partnerships which generate tax credits. The Company also holds partnership interests in venture capital funds formed to provide financing to small businesses and to promote community development. The Company had $34.1 million and $34.2 million in cost method investments included in other assets as of June 30, 2017 and December 31, 2016 , respectively.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Fair Value Measurements Fair value is defined under GAAP as the exchange price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date. The Company determines the fair values of its financial instruments based on the fair value hierarchy established in ASC 820, Fair Value Measurements and Disclosures (“ASC 820”), which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 describes three levels of inputs that may be used to measure fair value. Financial instruments are considered Level 1 when valuation can be based on quoted prices in active markets for identical assets or liabilities. Level 2 financial instruments are valued using quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or models using inputs that are observable or can be corroborated by observable market data of substantially the full term of the assets or liabilities. Financial instruments are considered Level 3 when their values are determined using pricing models, discounted cash flow methodologies or similar techniques and at least one significant model assumption or input is unobservable and when determination of the fair value requires significant management judgment or estimation. The following tables present the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 , aggregated by the level in the fair value hierarchy within which those measurements fall: As of June 30, 2017 Fair value measurements at reporting date using: Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) Assets: Available-for-sale securities: U.S. government and agencies $ 34,659 $ 34,366 $ 293 $ — Government-sponsored entities 305,130 — 305,130 — Municipal bonds 297,103 — 297,103 — Mortgage-backed securities 546,504 — 546,504 — Other 5,324 5,324 — — Total available-for-sale securities 1,188,720 39,690 1,149,030 — Derivatives - interest rate customer swaps 16,120 — 16,120 — Derivatives - customer foreign exchange forwards 1 — 1 — Derivatives - risk participation agreement 1 — 1 — Other investments 6,624 6,624 — — Liabilities: Derivatives - interest rate customer swaps $ 16,294 $ — $ 16,294 $ — Derivatives - customer foreign exchange forwards 1 — 1 — Derivatives - interest rate swaps 736 — 736 — Derivatives - risk participation agreement 141 — 141 — Other liabilities 6,624 6,624 — — Fair value measurements at reporting date using: As of December 31, 2016 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) Assets: Available-for-sale securities: U.S. government and agencies $ 39,936 $ 39,293 $ 643 $ — Government-sponsored entities 336,664 — 336,664 — Municipal bonds 293,397 — 293,397 — Mortgage-backed securities 570,327 — 570,327 — Other 23,808 23,808 — — Total available-for-sale securities 1,264,132 63,101 1,201,031 — Derivatives - interest rate customer swaps 17,032 — 17,032 — Derivatives - risk participation agreement 15 — 15 — Other investments 6,110 6,110 — — Liabilities: Derivatives - interest rate customer swaps $ 16,560 $ — $ 16,560 $ — Derivatives - interest rate swaps 1,040 — 1,040 — Derivatives - risk participation agreement 6 — 6 — Other liabilities 6,110 6,110 — — As of June 30, 2017 and December 31, 2016 , available-for-sale securities consisted primarily of U.S. government and agencies securities, government-sponsored entities securities, municipal bonds, mortgage-backed securities, and other available-for-sale securities. The equities (which are categorized as other available-for-sale securities) are valued with prices quoted in active markets. The U.S. Treasury securities, as of both June 30, 2017 and December 31, 2016 , are valued with prices quoted in active markets. Therefore, they have been categorized as a Level 1 measurement. The government-sponsored entities securities, municipal bonds, mortgage-backed securities, and certain investments in Small Business Administration (“SBA”) loans (which are categorized as U.S. government and agencies securities) generally have quoted prices but are traded less frequently than exchange-traded securities and can be priced using market data from similar assets. Therefore, they have been categorized as a Level 2 measurement. No investments held as of June 30, 2017 or December 31, 2016 were categorized as Level 3. There were no changes in the valuation techniques used for measuring the fair value of available-for-sale securities in the six month periods ended June 30, 2017 or 2016. In managing its interest rate risk, the Company utilizes derivative instruments such as interest rate customer swaps, interest rate swaps, and risk participation agreements. As a service to its customers, the Company may utilize derivative instruments such as customer foreign exchange forward contracts to manage its foreign exchange risk, if any. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. Therefore, they have been categorized as a Level 2 measurement as of June 30, 2017 and December 31, 2016 . See Part I. Item 1. “Notes to Unaudited Consolidated Financial Statements-Note 8: Derivatives and Hedging Activities” for further details. To comply with the provisions of ASC 820, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. Counterparty exposure is evaluated by netting positions that are subject to master netting agreements, as well as considering the amount of collateral securing the position. The Company has determined that the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, although the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. As a result, the Company has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy as of June 30, 2017 and December 31, 2016 . Other investments, which are not considered available-for-sale investments, consist of deferred compensation trusts, which consist of publicly traded mutual fund investments that are valued at prices quoted in active markets. Therefore, they have been categorized as a Level 1 measurement as of June 30, 2017 and December 31, 2016 . There were no transfers between levels for assets or liabilities recorded at fair value on a recurring basis during the three or six month periods ended June 30, 2017 and 2016 . There were no Level 3 assets valued on a recurring basis at June 30, 2017 or December 31, 2016 . The following tables present the Company’s assets and liabilities measured at fair value on a non-recurring basis during the periods ended June 30, 2017 and 2016 , respectively, aggregated by the level in the fair value hierarchy within which those measurements fall: As of June 30, 2017 Fair value measurements at reporting date using: Gain (losses) from fair value changes Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Three months ended June 30, 2017 Six months ended June 30, 2017 (In thousands) Assets: Impaired loans (1) $ 1,040 $ — $ — $ 1,040 $ (221 ) $ (219 ) _____________________ (1) Collateral-dependent impaired loans held at June 30, 2017 that had write-downs in fair value or whose specific reserve changed during the first six months of 2017 . As of June 30, 2016 Fair value measurements at reporting date using: Gain (losses) from fair value changes Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Three months ended June 30, 2016 Six months ended June 30, 2016 (In thousands) Assets: Impaired loans (1) $ 7,806 $ — $ — $ 7,806 $ — $ (2,064 ) _____________________ (1) Collateral-dependent impaired loans held at June 30, 2016 that had write-downs in fair value or whose specific reserve changed during the first six months of 2016 . The following table presents additional quantitative information about assets measured at fair value on a non-recurring basis for which the Company has utilized Level 3 inputs to determine fair value: As of June 30, 2017 Fair Value Valuation Technique Unobservable Input Range of Inputs Utilized Weighted Average of Inputs Utilized (In thousands) Impaired Loans $ 1,040 Appraisals of Collateral Discount for costs to sell 0% - 7% 6% Appraisal adjustments 0% - 20% 16% As of June 30, 2016 Fair Value Valuation Technique Unobservable Input Range of Inputs Utilized Weighted Average of Inputs Utilized (In thousands) Impaired Loans $ 7,806 Appraisals of Collateral Discount for costs to sell 6% - 13% 7% Appraisal adjustments 20% - 40% 37% Impaired loans include those loans that were adjusted to the fair value of underlying collateral as required under ASC 310, Receivables . The amount does not include impaired loans that are measured based on expected future cash flows discounted at the respective loan’s original effective interest rate, as that amount is not considered a fair value measurement. The Company uses appraisals, which management may adjust to reflect estimated fair value declines, or apply other discounts to appraised values for unobservable factors resulting from its knowledge of the property or consideration of broker quotes. The appraisers use a market, income, and/or a cost approach in determining the value of the collateral. Therefore they have been categorized as a Level 3 measurement. The following tables present the carrying values and fair values of the Company’s financial instruments that are not measured at fair value on a recurring basis: As of June 30, 2017 Book Value Fair Value Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) FINANCIAL ASSETS: Cash and cash equivalents $ 97,032 $ 97,032 $ 97,032 $ — $ — Investment securities held-to-maturity 99,024 98,713 14,971 83,742 — Loans held for sale 2,870 2,926 — 2,926 — Loans, net 6,204,919 6,237,522 — — 6,237,522 Other financial assets 78,887 78,887 — 78,887 — FINANCIAL LIABILITIES: Deposits 6,381,339 6,381,071 — 6,381,071 — Securities sold under agreements to repurchase 29,232 29,232 — 29,232 — Federal funds purchased 40,000 40,000 — 40,000 — Federal Home Loan Bank borrowings 618,989 620,176 — 620,176 — Junior subordinated debentures 106,363 96,363 — — 96,363 Other financial liabilities 1,889 1,889 — 1,889 — As of December 31, 2016 Book Value Fair Value Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) FINANCIAL ASSETS: Cash and cash equivalents $ 106,557 $ 106,557 $ 106,557 $ — $ — Investment securities held-to-maturity 93,079 92,604 — 92,604 — Loans held for sale 3,464 3,428 — 3,428 — Loans, net 6,036,277 6,021,611 — — 6,021,611 Other financial assets 77,956 77,956 — 77,956 — FINANCIAL LIABILITIES: Deposits 6,085,146 6,084,765 — 6,084,765 — Securities sold under agreements to repurchase 59,624 59,624 — 59,624 — Federal funds purchased 80,000 80,000 — 80,000 — Federal Home Loan Bank borrowings 734,205 734,941 — 734,941 — Junior subordinated debentures 106,363 96,363 — — 96,363 Other financial liabilities 1,942 1,942 — 1,942 — The estimated fair values have been determined by using available quoted market information or other appropriate valuation methodologies. The aggregate fair value amounts presented above do not represent the underlying value of the financial assets and liabilities to the Company taken as a whole as they do not reflect any premium or discount the Company might recognize if the asset were sold or the liability sold, settled or redeemend. An excess of fair value over book value on financial assets represents a premium, or gain, the Company might recognize if the asset were sold, while an excess of book value over fair value on financial liabilities represents a premium, or gain, the company might recognize if the liability were sold, settled, or redeemed prior to maturity. Conversely, losses would be recognized if an asset was sold where the book value exceeded the fair value or a liability was sold where the fair value exceeded the book value. The fair value estimates provided are made at a specific point in time, based on relevant market information and the characteristics of the financial instrument. The estimates do not provide for any premiums or discounts that could result from concentrations of ownership of a financial instrument. Because no active market exists for some of the Company’s financial instruments, certain fair value estimates are based on subjective judgments regarding current economic conditions, risk characteristics of the financial instruments, future expected loss experience, prepayment assumptions, and other factors. The resulting estimates involve uncertainties and are considered best estimates. Changes made to any of the underlying assumptions could significantly affect the estimates. Cash and cash equivalents The carrying value reported in the balance sheets for cash and cash equivalents approximates fair value due to the short-term nature of their maturities and are classified as Level 1. Held-to-maturity investment securities Held-to-maturity securities currently include mortgage-backed securities and U.S. Treasury securities. The U.S. Treasury securities as of June 30, 2017 are valued with prices quoted in active markets. Therefore, they have been categorized as a Level 1 measurement. There were no U.S. Treasury securities held-to-maturity as of December 31, 2016 . The mortgage-backed securities are fixed income instruments that are not quoted on an exchange, but may be traded in active markets. The fair value of these securities is based on quoted market prices obtained from external pricing services. The principal market for our securities portfolio is the secondary institutional market, with an exit price that is predominantly reflective of bid level pricing in that market. Accordingly, these held-to-maturity mortgage-backed securities are included in the Level 2 fair value category. Loans held for sale Loans held for sale are recorded at the lower of cost or fair value in the aggregate. Fair value estimates are based on actual commitments to sell the loans to investors at an agreed upon price or current market prices if rates have changed since the time the loan closed. Accordingly, loans held for sale are included in the Level 2 fair value category. Loans, net Fair value estimates are based on loans with similar financial characteristics. Fair values of commercial and residential mortgage loans are estimated by discounting contractual cash flows adjusted for prepayment estimates and using discount rates approximately equal to current market rates on loans with similar credit and interest rate characteristics and maturities. The fair value estimates for home equity and other loans are based on outstanding loan terms and pricing in the local markets. The method of estimating the fair value of the loans disclosed in the table above does not incorporate the exit price concept in the presentation of the fair value of these financial instruments. Net loans are included in the Level 3 fair value category based upon the inputs and valuation techniques used. Other financial assets Other financial assets consist of accrued interest and fees receivable, and stock in the Federal Home Loan Bank (“FHLB”), for which the carrying amount approximates fair value, and are classified as Level 2. Deposits The fair values reported for transaction accounts (demand, NOW, savings, and money market) equal their respective book values reported on the balance sheets and are classified as Level 2. The fair values disclosed are, by definition, equal to the amount payable on demand at the reporting date. The fair values for certificates of deposit are based on the discounted value of contractual cash flows. The discount rates used are representative of approximate rates currently offered on certificates of deposit with similar remaining maturities and are classified as Level 2. Securities sold under agreements to repurchase The fair value of securities sold under agreements to repurchase is estimated based on contractual cash flows discounted at the Bank’s incremental borrowing rate for FHLB borrowings with similar maturities and therefore these securities have been classified as Level 2. Federal funds purchased The carrying amounts of federal funds purchased approximate fair value due to their short-term nature and therefore these funds have been classified as Level 2. Federal Home Loan Bank borrowings The fair value reported for FHLB borrowings is estimated based on the discounted value of contractual cash flows. The discount rate used is based on the Bank’s estimated current incremental borrowing rate for FHLB borrowings of similar maturities and therefore these borrowings have been classified as Level 2. Junior subordinated debentures The fair value of the junior subordinated debentures issued by Boston Private Capital Trust I and Boston Private Capital Trust II were estimated using Level 3 inputs such as the interest rates on these securities, current rates for similar debt, a consideration for illiquidity of trading in the debt, and regulatory changes that would result in an unfavorable change in the regulatory capital treatment of this type of debt. Other financial liabilities Other financial liabilities consist of accrued interest payable for which the carrying amount approximates fair value and is classified as Level 2. Financial instruments with off-balance sheet risk The Bank’s commitments to originate loans and for unused lines and outstanding letters of credit are primarily at market interest rates and therefore, the carrying amount approximates fair value.

Loan Portfolio and Credit Quali

Loan Portfolio and Credit Quality	6 Months Ended
	Jun. 30, 2017
Loans and Leases Receivable Disclosure [Abstract]
Financing Receivables [Text Block]	Loan Portfolio and Credit Quality The Bank’s lending activities are conducted principally in the regions of New England, the San Francisco Bay Area, and Southern California. The Bank originates single and multi-family residential loans, commercial real estate loans, commercial and industrial loans, commercial tax exempt loans, construction and land loans, and home equity and other consumer loans. Most loans are secured by borrowers’ personal or business assets. The ability of the Bank’s single family residential and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic conditions within the Bank’s lending areas. Commercial, construction, and land borrowers’ ability to repay is generally dependent upon the health of the economy and real estate values, including, in particular, the performance of the construction sector. Accordingly, the ultimate collectability of a substantial portion of the Bank’s loan portfolio is susceptible to changing conditions in the New England, the San Francisco Bay Area, and Southern California economies and real estate markets. Total loans include deferred loan origination (fees)/ costs, net, of $6.6 million and $5.9 million as of June 30, 2017 and December 31, 2016 , respectively. The following table presents a summary of the loan portfolio by portfolio segment and class of receivable as of the dates indicated: June 30, 2017 December 31, 2016 (In thousands) Commercial and industrial $ 541,756 $ 611,370 Commercial tax exempt 416,157 398,604 Total commercial and industrial 957,913 1,009,974 Commercial real estate 2,356,345 2,302,244 Construction and land 130,904 104,839 Residential 2,525,225 2,379,861 Home equity 108,549 118,817 Consumer and other 200,992 198,619 Total $ 6,279,928 $ 6,114,354 The following table presents nonaccrual loans receivable by portfolio segment and class of receivable as of the dates indicated: June 30, 2017 December 31, 2016 (In thousands) Commercial and industrial $ 697 $ 572 Commercial tax exempt — — Total commercial and industrial 697 572 Commercial real estate 3,004 4,583 Construction and land 232 179 Residential 11,173 10,908 Home equity 1,070 1,072 Consumer and other — 1 Total $ 16,176 $ 17,315 The Bank’s policy is to discontinue the accrual of interest on a loan when the collectability of principal or interest is in doubt. In certain instances, although infrequent, loans that have become 90 days or more past due may remain on accrual status if the value of the collateral securing the loan is sufficient to cover principal and interest and the loan is in the process of collection. There were no loans 90 days or more past due, but still accruing as of both June 30, 2017 and December 31, 2016 . The Bank’s policy for returning a loan to accrual status requires the loan to be brought current and for the client to show a history of making timely payments (generally six consecutive months). For troubled debt restructured loans (“TDRs”), a return to accrual status generally requires timely payments for a period of six months in accordance with the restructured loan terms, along with meeting other criteria. The following tables show the payment status of loans by class of receivable as of the dates indicated: June 30, 2017 Accruing Past Due Nonaccrual Loans 30-59 Days Past Due 60-89 Days Past Due Total Accruing Past Due Current 30-89 Days Past Due 90 Days or Greater Past Due Total Non-Accrual Loans Current Accruing Loans Total Loans Receivable (In thousands) Commercial and industrial $ 665 $ — $ 665 $ 445 $ 78 $ 174 $ 697 $ 540,394 $ 541,756 Commercial tax exempt — — — — — — — 416,157 416,157 Commercial real estate — 182 182 970 101 1,933 3,004 2,353,159 2,356,345 Construction and land — — — 65 17 150 232 130,672 130,904 Residential — 1,140 1,140 4,251 233 6,689 11,173 2,512,912 2,525,225 Home equity 90 339 429 — — 1,070 1,070 107,050 108,549 Consumer and other 747 31 778 — — — — 200,214 200,992 Total $ 1,502 $ 1,692 $ 3,194 $ 5,731 $ 429 $ 10,016 $ 16,176 $ 6,260,558 $ 6,279,928 December 31, 2016 Accruing Past Due Nonaccrual Loans 30-59 Days Past Due 60-89 Days Past Due Total Accruing Past Due Current 30-89 Days Past Due 90 Days or Greater Past Due Total Non-Accrual Loans Current Accruing Loans Total Loans Receivable (In thousands) Commercial and industrial $ 541 $ 1,078 $ 1,619 $ 537 $ — $ 35 $ 572 $ 609,179 $ 611,370 Commercial tax exempt — — — — — — — 398,604 398,604 Commercial real estate 3,096 — 3,096 2,311 835 1,437 4,583 2,294,565 2,302,244 Construction and land — — — 129 12 38 179 104,660 104,839 Residential 3,646 536 4,182 2,148 1,274 7,486 10,908 2,364,771 2,379,861 Home equity 245 — 245 — 80 992 1,072 117,500 118,817 Consumer and other 5,995 — 5,995 1 — — 1 192,623 198,619 Total $ 13,523 $ 1,614 $ 15,137 $ 5,126 $ 2,201 $ 9,988 $ 17,315 $ 6,081,902 $ 6,114,354 Nonaccrual and delinquent loans are affected by many factors, such as economic and business conditions, interest rates, unemployment levels, and real estate collateral values, among others. In periods of prolonged economic decline, borrowers may become more severely affected over time as liquidity levels decline and the borrower’s ability to continue to make payments deteriorates. With respect to real estate collateral values, the declines from the peak, as well as the value of the real estate at the time of origination versus the current value, can impact the level of problem loans. For instance, if the loan to value ratio at the time of renewal has increased due to the decline in the real estate value since origination, the loan may no longer meet the Bank’s underwriting standards and may be considered for classification as a problem loan dependent upon a review of risk factors. Generally when a collateral dependent loan becomes impaired, an updated appraisal of the collateral, if appropriate, is obtained. If the impaired loan has not been upgraded to a performing status within a reasonable amount of time, the Bank will continue to obtain updated appraisals as deemed necessary, especially during periods of declining property values. The past due status of a loan is determined in accordance with its contractual repayment terms. All loan types are reported past due when one scheduled payment is due and unpaid for 30 days or more. Credit Quality Indicators The Bank uses a risk rating system to monitor the credit quality of its loan portfolio. Loan classifications are assessments made by the Bank of the status of the loans based on the facts and circumstances known to the Bank, including management’s judgment, at the time of assessment. Some or all of these classifications may change in the future if there are unexpected changes in the financial condition of the borrower, including but not limited to, changes resulting from continuing deterioration in general economic conditions on a national basis or in the local markets in which the Bank operates adversely affecting, among other things, real estate values. Such conditions, as well as other factors which adversely affect borrowers’ ability to service or repay loans, typically result in changes in loan default and charge-off rates, and increased provisions for loan losses, which would adversely affect the Company’s financial performance and financial condition. These circumstances are not entirely foreseeable and, as a result, it may not be possible to accurately reflect them in the Company’s analysis of credit risk. Generally, only commercial loans, including commercial real estate, other commercial and industrial loans, commercial tax exempt loans, and construction and land loans, are given a numerical grade. A summary of the rating system used by the Bank, repeated here from Part II. Item 8. “Financial Statements and Supplementary Data—Note 1: Basis of Presentation and Summary of Significant Accounting Policies,” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, follows: Pass - All loans graded as pass are considered acceptable credit quality by the Bank and are grouped for purposes of calculating the allowance for loan losses. For residential, home equity and consumer loans, the Bank classifies loans as pass unless there is known information such as delinquency or client requests for modifications which, due to financial difficulty, would then generally result in a risk rating such as special mention or more severe depending on the factors. Special Mention - Loans rated in this category are defined as having potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may, at some future date, result in the deterioration of the repayment prospects for the credit or the Bank’s credit position. These loans are currently protected but have the potential to deteriorate to a substandard rating. For commercial loans, the borrower’s financial performance may be inconsistent or below forecast, creating the possibility of liquidity problems and shrinking debt service coverage. In loans having this rating, the primary source of repayment is still good, but there is increasing reliance on collateral or guarantor support. Collectability of the loan is not yet in jeopardy. In particular, loans in this category are considered more variable than other categories, since they will typically migrate through categories more quickly. Substandard - Loans rated in this category are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. A substandard credit has a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Substandard loans may be either still accruing or nonaccruing depending upon the severity of the risk and other factors such as the value of the collateral, if any, and past due status. Doubtful - Loans rated in this category indicate that collection or liquidation in full on the basis of currently existing facts, conditions, and values, is highly questionable and improbable. Loans in this category are usually on nonaccrual and classified as impaired. The following tables present the loan portfolio’s credit risk profile by internally assigned grade and class of receivable as of the dates indicated: June 30, 2017 By Loan Grade or Nonaccrual Status Pass Special Mention Accruing Substandard Nonaccrual Loans Total (In thousands) Commercial and industrial $ 522,349 $ 12,135 $ 6,575 $ 697 $ 541,756 Commercial tax exempt 410,535 5,622 — — 416,157 Commercial real estate 2,273,184 40,177 39,980 3,004 2,356,345 Construction and land 123,420 4,330 2,922 232 130,904 Residential 2,512,682 — 1,370 11,173 2,525,225 Home equity 107,479 — — 1,070 108,549 Consumer and other 200,741 — 251 — 200,992 Total $ 6,150,390 $ 62,264 $ 51,098 $ 16,176 $ 6,279,928 December 31, 2016 By Loan Grade or Nonaccrual Status Pass Special Mention Accruing Substandard Nonaccrual Loans Total (In thousands) Commercial and industrial $ 591,388 $ 10,133 $ 9,277 $ 572 $ 611,370 Commercial tax exempt 388,544 10,060 — — 398,604 Commercial real estate 2,230,732 17,233 49,696 4,583 2,302,244 Construction and land 101,254 109 3,297 179 104,839 Residential 2,367,554 — 1,399 10,908 2,379,861 Home equity 117,745 — — 1,072 118,817 Consumer and other 198,616 — 2 1 198,619 Total $ 5,995,833 $ 37,535 $ 63,671 $ 17,315 $ 6,114,354 The following tables present, by class of receivable, the balance of impaired loans with and without a related allowance, the associated allowance for those impaired loans with a related allowance, and the total unpaid principal on impaired loans: As of and for the three and six months ended June 30, 2017 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,771 $ 2,377 n/a $ 1,667 $ 1,703 $ 12 $ 25 Commercial tax exempt — — n/a 1,084 1,859 80 80 Commercial real estate 2,879 6,429 n/a 3,358 3,824 724 970 Construction and land 232 568 n/a 190 181 — — Residential 9,600 9,971 n/a 9,561 8,958 78 179 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 14,482 19,345 n/a 15,860 16,525 894 1,254 With an allowance recorded: Commercial and industrial — — $ — — — — — Commercial tax exempt — — — — — — — Commercial real estate 6,996 7,425 453 7,011 7,042 96 171 Construction and land — — — — — — — Residential 2,503 2,503 507 2,613 3,312 23 62 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Subtotal 9,535 9,964 981 9,661 10,391 119 233 Total: Commercial and industrial 1,771 2,377 — 1,667 1,703 12 25 Commercial tax exempt — — — 1,084 1,859 80 80 Commercial real estate 9,875 13,854 453 10,369 10,866 820 1,141 Construction and land 232 568 — 190 181 — — Residential 12,103 12,474 507 12,174 12,270 101 241 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Total $ 24,017 $ 29,309 $ 981 $ 25,521 $ 26,916 $ 1,013 $ 1,487 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the three and six months ended June 30, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 8,595 $ 10,622 n/a $ 5,668 $ 4,107 $ 59 $ 71 Commercial tax exempt — — n/a — — — — Commercial real estate 7,780 14,088 n/a 9,794 10,764 504 542 Construction and land 861 1,793 n/a 2,337 1,797 — — Residential 7,653 8,013 n/a 7,565 7,389 57 114 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 24,889 34,516 n/a 25,364 24,057 620 727 With an allowance recorded: Commercial and industrial 37 37 $ 22 44 31 — 1 Commercial tax exempt — — — — — — — Commercial real estate 7,233 7,662 640 7,266 7,294 78 158 Construction and land — — — — 943 — — Residential 5,682 5,682 439 5,630 5,958 36 79 Home equity — — — — — — — Consumer and other — — — — — — — Subtotal 12,952 13,381 1,101 12,940 14,226 114 238 Total: Commercial and industrial 8,632 10,659 22 5,712 4,138 59 72 Commercial tax exempt — — — — — — — Commercial real estate 15,013 21,750 640 17,060 18,058 582 700 Construction and land 861 1,793 — 2,337 2,740 — — Residential 13,335 13,695 439 13,195 13,347 93 193 Home equity — — — — — — — Consumer and other — — — — — — — Total $ 37,841 $ 47,897 $ 1,101 $ 38,304 $ 38,283 $ 734 $ 965 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the year ended December 31, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,793 $ 2,155 n/a $ 5,288 $ 249 Commercial tax exempt — — n/a — — Commercial real estate 4,488 9,647 n/a 8,520 1,032 Construction and land 179 507 n/a 1,069 48 Residential 8,134 8,506 n/a 7,446 211 Home equity — — n/a — — Consumer and other — — n/a — — Subtotal 14,594 20,815 n/a 22,323 1,540 With an allowance recorded: Commercial and industrial — — $ — 31 1 Commercial tax exempt — — — — — Commercial real estate 7,115 7,544 548 7,230 314 Construction and land — — — 507 — Residential 4,284 4,284 565 5,505 143 Home equity 37 37 22 3 — Consumer and other — — — — — Subtotal 11,436 11,865 1,135 13,276 458 Total: Commercial and industrial 1,793 2,155 — 5,319 250 Commercial tax exempt — — — — — Commercial real estate 11,603 17,191 548 15,750 1,346 Construction and land 179 507 — 1,576 48 Residential 12,418 12,790 565 12,951 354 Home equity 37 37 22 3 — Consumer and other — — — — — Total $ 26,030 $ 32,680 $ 1,135 $ 35,599 $ 1,998 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. When management determines that it is probable that the Bank will not collect all principal and interest on a loan in accordance with the original loan terms, the loan is designated as impaired. Loans that are designated as impaired require an analysis to determine the amount of impairment, if any. Impairment would be indicated as a result of the carrying value of the loan exceeding the estimated collateral value, less costs to sell, for collateral dependent loans or the net present value of the projected cash flow, discounted at the loan’s contractual effective interest rate, for loans not considered to be collateral dependent. Generally, shortfalls in the analysis on collateral dependent loans would result in the impairment amount being charged-off to the allowance for loan losses. Shortfalls on cash flow dependent loans may be carried as specific allocations to the general reserve unless a known loss is determined to have occurred, in which case such known loss is charged-off. Loans in the held for sale category are carried at the lower of amortized cost or estimated fair value in the aggregate and are excluded from the allowance for loan losses analysis. The Bank may, under certain circumstances, restructure loans as a concession to borrowers who are experiencing financial difficulty. Such loans are classified as TDRs and are included in impaired loans. TDRs typically result from the Bank’s loss mitigation activities which, among other things, could include rate reductions, payment extensions, and/or principal forgiveness. As of June 30, 2017 and December 31, 2016 , TDRs totaled $16.6 million and $18.1 million , respectively. As of June 30, 2017 , $11.9 million of the $16.6 million in TDRs were on accrual status. As of December 31, 2016 , $12.4 million of the $18.1 million in TDRs were on accrual status. Since all TDR loans are considered impaired loans, they are individually evaluated for impairment. The resulting impairment, if any, would have an impact on the allowance for loan losses as a specific reserve or charge-off. If, prior to the classification as a TDR, the loan was not impaired, there would have been a general or allocated reserve on the particular loan. Therefore, depending upon the result of the impairment analysis, there could be an increase or decrease in the related allowance for loan losses. Many loans initially categorized as TDRs are already on nonaccrual status and are already considered impaired. Therefore, there is generally not a material change to the allowance for loan losses when a nonaccruing loan is categorized as a TDR. There were no loans that were restructured or defaulted as of and during the three and six months ended June 30, 2017 . The following tables present the balance of TDRs that were restructured or defaulted during the periods indicated and the types of concessions granted: As of and for the three months ended June 30, 2016 Restructured in the current quarter TDRs that defaulted that were restructured in prior twelve months # of Loans Pre- modification recorded investment Post- modification recorded investment # of Loans Post- modification recorded investment (Dollars in thousands) Commercial and industrial 2 $ 7,209 $ 7,209 — $ — Commercial tax exempt — — — — — Commercial real estate 1 1,276 1,276 — — Construction and land — — — — — Residential 1 115 116 — — Home equity — — — — — Consumer and other — — — — — Total 4 $ 8,600 $ 8,601 — $ — As of and for the three months ended June 30, 2016 Extension of term Temporary rate reduction Payment deferral Combination of concessions (1) Total concessions # of Post- cation ment # of Post- # of Post- # of Post- # of Post- (Dollars in thousands) Commercial and industrial 2 $ 7,209 — $ — — $ — — $ — 2 $ 7,209 Commercial tax exempt — — — — — — — — — — Commercial real estate — — — — — — 1 1,276 1 1,276 Construction and land — — — — — — — — — — Residential — — 1 116 — — — — 1 116 Home equity — — — — — — — — — — Consumer and other — — — — — — — — — — _____________________ (1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral. As of and for the six months ended June 30, 2016 Restructured in the current quarter TDRs that defaulted that were restructured in prior twelve months # of Loans Pre- modification recorded investment Post- modification recorded investment # of Loans Post- modification recorded investment (Dollars in thousands) Commercial and industrial 3 $ 7,384 $ 7,209 — $ — Commercial tax exempt — — — — — Commercial real estate 1 1,276 1,276 — — Construction and land — — — — — Residential 2 260 261 — — Home equity — — — — — Consumer and other — — — — — Total 6 $ 8,920 $ 8,746 — $ — As of and for the six months ended June 30, 2016 Extension of term Temporary rate reduction Payment deferral Combination of concessions (1) Total concessions # of Post- cation ment # of Post- # of Post- # of Post- # of Post- (Dollars in thousands) Commercial and industrial 2 $ 7,209 — $ — — $ — 1 $ — 3 $ 7,209 Commercial tax exempt — — — — — — — — — — Commercial real estate — — — — — — 1 1,276 1 1,276 Construction and land — — — — — — — — — — Residential — — 2 261 — — — — 2 261 Home equity — — — — — — — — — — Consumer and other — — — — — — — — — — _____________________ (1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral.

Allowance for Loan Losses

Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2017
Allowance for Loan Losses [Abstract]
Allowance for Credit Losses [Text Block]	Allowance for Loan Losses The allowance for loan losses is reported as a reduction of outstanding loan balances, and totaled $75.0 million and $78.1 million at June 30, 2017 and December 31, 2016 , respectively. The following tables present a summary of the changes in the allowance for loan losses for the periods indicated: As of and for the three months ended June 30, As of and for the six months ended June 30, 2017 2016 2017 2016 (In thousands) Allowance for loan losses, beginning of period: Commercial and industrial $ 12,291 $ 14,343 $ 12,751 $ 15,814 Commercial real estate 51,164 44,519 50,412 44,215 Construction and land 3,197 5,551 3,039 6,322 Residential 10,090 10,634 10,449 10,544 Home equity 987 1,079 1,035 1,085 Consumer and other 302 301 391 520 Total allowance for loan losses, beginning of period 78,031 76,427 78,077 78,500 Loans charged-off: Commercial and industrial (218 ) — (218 ) (2,108 ) Commercial real estate — — — — Construction and land — — — (400 ) Residential — — (58 ) (501 ) Home equity — — — — Consumer and other (245 ) (19 ) (245 ) (26 ) Total charge-offs (463 ) (19 ) (521 ) (3,035 ) As of and for the three months ended June 30, As of and for the six months ended June 30, 2017 2016 2017 2016 (In thousands) Recoveries on loans previously charged-off: Commercial and industrial 67 82 154 1,376 Commercial real estate 3,479 1,791 3,529 3,942 Construction and land — — — 627 Residential — 4 47 4 Home equity — — — — Consumer and other 9 3 18 7 Total recoveries 3,555 1,880 3,748 5,956 Provision/ (credit) for loan losses: Commercial and industrial (468 ) (1,179 ) (1,015 ) (1,836 ) Commercial real estate (6,507 ) (803 ) (5,805 ) (2,650 ) Construction and land 388 (811 ) 546 (1,809 ) Residential 192 114 (156 ) 705 Home equity (58 ) 60 (106 ) 54 Consumer and other 339 84 241 (132 ) Total provision/(credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Allowance for loan losses at end of period: Commercial and industrial 11,672 13,246 11,672 13,246 Commercial real estate 48,136 45,507 48,136 45,507 Construction and land 3,585 4,740 3,585 4,740 Residential 10,282 10,752 10,282 10,752 Home equity 929 1,139 929 1,139 Consumer and other 405 369 405 369 Total allowance for loan losses at end of period $ 75,009 $ 75,753 $ 75,009 $ 75,753 The allowance for loan losses is an estimate of the inherent risk of loss in the loan portfolio as of the consolidated balance sheet dates. Management estimates the level of the allowance based on all relevant information available. Changes to the required level in the allowance result in either a provision for loan loss expense, if an increase is required, or a credit to the provision, if a decrease is required. Loan losses are charged to the allowance when available information confirms that specific loans, or portions thereof, are uncollectible. Recoveries on loans previously charged-off are credited to the allowance when received in cash. The provision/ (credit) for loan losses and related balance in the allowance for loan losses for tax exempt commercial and industrial loans are included with commercial and industrial. The provision/ (credit) for loan losses and related balance in the allowance for loan losses for tax exempt commercial real estate loans are included with commercial real estate. There were no charge-offs or recoveries, for any period presented, for both commercial and industrial and commercial real estate tax exempt loans. The following tables present the Company’s allowance for loan losses and loan portfolio at June 30, 2017 and December 31, 2016 by portfolio segment, disaggregated by method of impairment analysis. The Company had no loans acquired with deteriorated credit quality at June 30, 2017 or December 31, 2016 . June 30, 2017 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,771 $ — $ 956,142 $ 11,672 $ 957,913 $ 11,672 Commercial real estate 9,875 453 2,346,470 47,683 2,356,345 48,136 Construction and land 232 — 130,672 3,585 130,904 3,585 Residential 12,103 507 2,513,122 9,775 2,525,225 10,282 Home equity 36 21 108,513 908 108,549 929 Consumer — — 200,992 405 200,992 405 Total $ 24,017 $ 981 $ 6,255,911 $ 74,028 $ 6,279,928 $ 75,009 December 31, 2016 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,793 $ — $ 1,008,181 $ 12,751 $ 1,009,974 $ 12,751 Commercial real estate 11,603 548 2,290,641 49,864 2,302,244 50,412 Construction and land 179 — 104,660 3,039 104,839 3,039 Residential 12,418 565 2,367,443 9,884 2,379,861 10,449 Home equity 37 22 118,780 1,013 118,817 1,035 Consumer — — 198,619 391 198,619 391 Total $ 26,030 $ 1,135 $ 6,088,324 $ 76,942 $ 6,114,354 $ 78,077

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Derivatives and Hedging Activities The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities and, to a lesser extent, the use of derivative financial instruments. Additionally, as a service to its customers, the Company may utilize derivative instruments such as customer foreign exchange forward contracts to manage its foreign exchange risk, if any. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are generally determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to certain loans, deposits, and borrowings. The following table presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheets as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 Asset derivatives Liability derivatives Asset derivatives Liability derivatives Balance sheet location Fair value (1) Balance sheet location Fair value (1) Balance sheet location Fair value (1) Balance sheet location Fair value (1) (In thousands) Derivatives designated as hedging instruments: Interest rate products Other assets $ — Other liabilities $ (736 ) Other assets $ — Other liabilities $ (1,040 ) Derivatives not designated as hedging instruments: Interest rate products Other assets 16,120 Other liabilities (16,294 ) Other assets 17,032 Other liabilities (16,560 ) Risk participation agreements Other assets 1 Other liabilities (141 ) Other assets 15 Other liabilities (6 ) Foreign exchange contracts Other assets 1 Other liabilities (1 ) Other assets — Other liabilities — Total $ 16,122 $ (17,172 ) $ 17,047 $ (17,606 ) _____________________ (1) For additional details, see Part I. Item 1. “Notes to Unaudited Consolidated Financial Statements-Note 5: Fair Value Measurements.” The following tables present the effect of the Company’s derivative financial instruments in the consolidated statements of operations for the three and six months ended June 30, 2017 and 2016 : Derivatives in cash flow hedging relationships Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (1) Location of gain or (loss) reclassified from accumulated OCI into income (effective portion) Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion) Three months ended June 30, Three months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products $ (425 ) $ (643 ) Interest expense $ (357 ) $ (453 ) Total $ (425 ) $ (643 ) $ (357 ) $ (453 ) _____________________ (1) There was an additional $2 thousand gain related to the ineffective portion for the three months ended as of June 30, 2017 and $3 thousand gain related to the ineffective portion for the three months ended as of June 30, 2016 . Derivatives in cash flow hedging relationships Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (1) Location of gain or (loss) reclassified from accumulated OCI into income (effective portion) Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion) Six months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products $ (358 ) $ (2,591 ) Interest expense $ (660 ) $ (914 ) Total $ (358 ) $ (2,591 ) $ (660 ) $ (914 ) ____________________ (1) There was an additional $2 thousand loss related to the ineffective portion for the six months ended as of June 30, 2017 and $45 thousand gain related to the ineffective portion for the six months ended as of June 30, 2016 . The following table presents the components of the Company’s accumulated other comprehensive income/ (loss) related to the derivatives for the three and six months ended June 30, 2017 and 2016 : Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Accumulated other comprehensive income/ (loss) on cash flow hedges, balance at beginning of period $ (389 ) $ (2,023 ) $ (605 ) $ (1,123 ) Net change in unrealized gain/ (loss) on cash flow hedges (40 ) (86 ) 176 (986 ) Accumulated other comprehensive income/ (loss) on cash flow hedges, balance at end of period $ (429 ) $ (2,109 ) $ (429 ) $ (2,109 ) The Bank has agreements with its derivative counterparties that contain provisions where, if the Bank defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Bank could also be declared in default on its derivative obligations. The Bank was in compliance with these provisions as of June 30, 2017 and December 31, 2016 . The Bank also has agreements with certain of its derivative counterparties that contain provisions where, if the Bank fails to maintain its status as a well- or adequately-capitalized institution, then the counterparty could terminate the derivative positions and the Bank would be required to settle its obligations under the agreements. The Bank was in compliance with these provisions as of June 30, 2017 and December 31, 2016 . Certain of the Bank’s agreements with its derivative counterparties contain provisions where, if specified, events or conditions occur that materially change the Bank’s creditworthiness in an adverse manner, the Bank may be required to fully collateralize its obligations under the derivative instruments. The Bank was in compliance with these provisions as of June 30, 2017 and December 31, 2016 . As of June 30, 2017 and December 31, 2016 , the termination amounts related to collateral determinations of derivatives in a liability position were $4.5 million and $3.4 million , respectively. The Company has minimum collateral posting thresholds with its derivative counterparties and pledged securities with market values of $8.0 million and $1.9 million , respectively, as of June 30, 2017 and December 31, 2016 , against its obligations under these agreements. The collateral posted is typically greater than the current liability position; however, due to timing of liability position changes at period end, the funding of a collateral shortfall may take place shortly following period end. Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company has entered into interest rate swaps as part of its interest rate risk management strategy. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable rate amounts from a counterparty in exchange for the Company making fixed payments. The Company has entered into interest rate swaps to hedge London Interbank Offered Rate (“LIBOR”) -indexed brokered deposits and the LIBOR component of the total cost of certain FHLB borrowings. To accomplish this objective and strategy, the Bank has entered into a total of seven interest rate swaps, two during 2017 with effective dates of March 22, 2017 and five during 2013 with effective dates of December 1, 2014, September 2, 2014, June 1, 2014, March 1, 2014, and August 1, 2013. The two interest rate swaps entered into during 2017 have notional amounts of $40 million and $60 million with terms of 1.75 and 2.25 years, respectively. These interest rate swaps will effectively fix the Bank’s interest payments on $100 million in interest-related cash outflows attributable to changes in the LIBOR component of FHLB borrowing liabilities at rates of 1.55% and 1.65%, respectively, with a weighted average rate of 1.61%. The borrowings hedged will initially be expected to be issuances and quarterly rollovers of 3-month FHLB advances but may also then include future issuances of 3-month repurchase agreements with similar characteristics and/or future issuances of either floating or fixed rate borrowings that are issued with the specific intent to replace the quarterly rollovers of the advances or repurchase agreements. The five interest rate swaps entered into during 2013 each have a notional amount of $25 million and have terms ranging from three to six years. The interest rate swaps effectively fix the Bank’s interest payments on $125 million of its LIBOR-indexed deposit liabilities at rates between 1.68% and 2.32%, with a weighted average rate of 1.98%. The Company uses the “Hypothetical Derivative Method” described in ASC 815, Derivatives and Hedging (“ASC 815”), for quarterly prospective and retrospective assessments of hedge effectiveness, as well as for measurements of hedge ineffectiveness. Under this method, the Company assesses the effectiveness of each hedging relationship by comparing the changes in cash flows of the derivative hedging instrument with the changes in cash flows of the designated hedged transactions. The effective portion of changes in the fair value of the derivative is initially reported in other comprehensive income (“OCI”) (outside of earnings) and subsequently reclassified to earnings in interest and dividend income when the hedged transactions affect earnings. Ineffectiveness resulting from the hedge is recorded as a gain or loss in the consolidated statement of operations as part of fees and other income. There was an immaterial amount of hedge ineffectiveness during the three and six months ended June 30, 2017 and 2016 . The Company monitors the risk of counterparty default on an ongoing basis. A portion of the balance reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made or received on the Company’s interest rate swaps. During the next twelve months, the Company estimates that $0.7 million will be reclassified as an increase in interest expense. Non-designated Hedges Derivatives not designated as hedges are not speculative and result from two different services the Bank provides to qualified commercial clients. The Bank offers certain derivative products directly to such clients. The Bank economically hedges derivative transactions executed with commercial clients by entering into mirror-image, offsetting derivatives with third parties. Derivative transactions executed as part of these programs are not designated in ASC 815-qualifying hedging relationships and are, therefore, marked-to-market through earnings each period. Because the derivatives have mirror-image contractual terms, the changes in fair value substantially offset through earnings. The net effect on earnings is primarily driven by changes in the credit valuation adjustment (“CVA”). The CVA represents the dollar amount of fair value adjustment related to nonperformance risk of both the Bank and its counterparties. Fees earned in connection with the execution of derivatives related to this program are recognized in the consolidated statement of operations in other income. As of June 30, 2017 and December 31, 2016 , the Bank had 138 and 136 derivatives, respectively, related to this program, comprised of interest rate swaps and caps, with an aggregate notional amount of $1.1 billion for both periods. As of June 30, 2017 , there were two foreign currency exchange contracts outstanding related to this program with an aggregate notional amount of $0.1 million , and as of December 31, 2016 , there was one foreign currency exchange contract with an aggregate notional amount of less than $0.1 million . In addition, as a participant lender, the Bank has guaranteed performance on the pro-rated portion of swaps executed by other financial institutions. As the participant lender, the Bank is providing a partial guarantee, but is not a direct party to the related swap transactions. The Bank has no obligations under the risk participation agreements unless the borrower defaults on their swap transaction with the lead bank and the swap is in a liability position to the borrower. In that instance, the Bank has agreed to pay the lead bank a portion of the swap’s termination value at the time of the default. The derivative transactions entered into as part of these agreements are not designated, as per ASC 815, as qualifying hedging relationships and are, therefore, marked-to-market through earnings each period. As of June 30, 2017 , there were six of these risk participation transactions with an aggregate notional amount of $48.2 million and, as of December 31, 2016 , there were two of these risk participation transactions with an aggregate notional amount of $13.3 million . The Bank has also participated out to another financial institution a pro-rated portion of two swaps executed by the Bank. The other financial institution has no obligations under the risk participation agreements unless the borrowers default on their swap transactions with the Bank and the swaps are in liability positions to the borrower. In those instances, the other financial institution has agreed to pay the Bank a portion of the swap’s termination value at the time of the default. The derivative transactions entered into as part of these agreements are not designated, as per ASC 815, as qualifying hedging relationships and are, therefore, marked-to-market through earnings each period. The pro-rated notional amount of these risk participation transactions was $6.1 million as of both June 30, 2017 and December 31, 2016. The following table presents the effect of the Bank’s derivative financial instruments not designated as hedging instruments in the consolidated statement of operations for the three and six months ended June 30, 2017 and 2016 . Amount of gain or (loss), net, recognized in income on derivatives Derivatives not designated as hedging instruments Location of gain or (loss) recognized in income on derivatives Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products Other income/ (expense) $ (324 ) $ (1,554 ) $ (646 ) $ (2,159 ) Risk participation agreements Other income/ (expense) 320 7 320 13 Total $ (4 ) $ (1,547 ) $ (326 ) $ (2,146 )

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes The following table presents the components of income tax expense for continuing operations, discontinued operations, noncontrolling interests and the Company: Six months ended June 30, 2017 2016 (In thousands) Income from continuing operations: Income before income taxes $ 55,005 $ 48,093 Income tax expense 16,516 15,064 Net income from continuing operations $ 38,489 $ 33,029 Effective tax rate, continuing operations 30.0 % 31.3 % Income from discontinued operations: Income before income taxes $ 4,606 $ 5,658 Income tax expense 1,911 2,348 Net income from discontinued operations $ 2,695 $ 3,310 Effective tax rate, discontinued operations 41.5 % 41.5 % Less: Income attributable to noncontrolling interests: Income before income taxes $ 2,116 $ 1,900 Income tax expense — — Net income attributable to noncontrolling interests $ 2,116 $ 1,900 Effective tax rate, noncontrolling interests — % — % Income attributable to the Company Income before income taxes $ 57,495 $ 51,851 Income tax expense 18,427 17,412 Net income attributable to the Company $ 39,068 $ 34,439 Effective tax rate attributable to the Company 32.0 % 33.6 % The effective tax rate for continuing operations for the six months ended June 30, 2017 of 30.0% , with related tax expense of $16.5 million , was calculated based on a projected 2017 annual effective tax rate. The effective tax rate was less than the statutory rate of 35% due primarily to earnings from tax-exempt investments, income tax credits, and income attributable to noncontrolling interests. These items were partially offset by state and local income taxes. The effective tax rate for continuing operations for the six months ended June 30, 2016 of 31.3% , with related tax expense of $15.1 million , was calculated based on a projected 2016 annual effective tax rate. The effective tax rate was less than the statutory rate of 35% due primarily to earnings from tax-exempt investments, income tax credits, and income attributable to noncontrolling interests. These items were partially offset by state and local income taxes. The effective tax rate for continuing operations for the six months ended June 30, 2017 is lower than the effective tax rate for the same period in 2016 due primarily to a projected increase in earnings from tax-exempt investments and loans in 2017 as compared to 2016. In the first quarter of 2017, the Company adopted ASU 2016-09. The impact of ASU 2016-09 for the six months ended June 30, 2017, was a decrease in income tax expense of $0.1 million due to the fair value at the time of vesting of share-based compensation as compared to the grant date fair value, partially offset by stock options expiring unexercised due to being out of the money. There was no significant change to the Company’s effective tax rate related to the adoption of this ASU.

Noncontrolling Interests

Noncontrolling Interests	6 Months Ended
	Jun. 30, 2017
Noncontrolling Interest [Abstract]
Noncontrolling Interest Disclosure [Text Block]	Noncontrolling Interests At the Company, noncontrolling interests consist of equity owned by management of the Company’s respective majority-owned affiliates. Net income attributable to noncontrolling interests in the consolidated statements of operations represents the net income allocated to the noncontrolling interest owners of the affiliates. Net income allocated to the noncontrolling interest owners was $1.2 million and $1.0 million for the three month periods ended June 30, 2017 and 2016 , respectively, and $2.1 million and $1.9 million for the six month periods ended June 30, 2017 and 2016 , respectively. On the consolidated balance sheets, noncontrolling interests are included as the sum of the capital and undistributed profits allocated to the noncontrolling interest owners. Typically, this balance is included in a company’s permanent shareholders’ equity in the consolidated balance sheets. When the noncontrolling interest owners’ rights include certain redemption features, as described in ASC 480, Distinguishing Liabilities from Equity , such redeemable noncontrolling interests are classified as mezzanine equity and are not included in permanent shareholders’ equity. Due to the redemption features of the noncontrolling interests, the Company had redeemable noncontrolling interests held in mezzanine equity in the accompanying consolidated balance sheets of $17.2 million and $17.0 million at June 30, 2017 and December 31, 2016 , respectively. The aggregate amount of such redeemable noncontrolling equity interests are recorded at the estimated maximum redemption values. In addition, the Company had $4.4 million and $4.2 million in noncontrolling interests included in permanent shareholder’s equity at June 30, 2017 and December 31, 2016 , respectively. Each non-wholly owned affiliate operating agreement provides the Company and/or the noncontrolling interests with contingent call or put redemption features used for the orderly transfer of noncontrolling equity interests between the affiliate noncontrolling interest owners and the Company at either a contractually predetermined fair value; multiple of earnings before interest, taxes, depreciation, and amortization (EBITDA); or fair value. The Company may liquidate these noncontrolling interests in cash, shares of the Company’s common stock, or other forms of consideration dependent on the operating agreement. These agreements are discussed in Part II. Item 8. “Financial Statements and Supplementary Data – Note 14: Noncontrolling Interests” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . Generally, these put and call redemption features refer to shareholder rights of both the Company and the noncontrolling interest owners of the Company’s majority-owned affiliate companies. The affiliate company noncontrolling interests generally take the form of limited liability company (LLC) units, profits interests, or common stock (collectively, the “noncontrolling equity interests”). In most circumstances, the put and call redemption features generally relate to the Company’s right and, in some cases, obligation to purchase and the noncontrolling equity interests’ right to sell their equity interests. There are various events that could cause the puts or calls to be exercised, such as a change in control, death, disability, retirement, resignation or termination. The puts and calls are generally to be exercised at the then fair value or a contractually agreed upon approximation thereof. The terms of these rights vary and are governed by the respective individual operating and legal documents. The following table presents, by affiliate, the noncontrolling interests included as redeemable noncontrolling interests and noncontrolling interests in mezzanine and permanent equity, respectively, at the periods indicated: June 30, 2017 December 31, 2016 (In thousands) Anchor $ 10,991 $ 10,934 BOS 7,178 6,782 DGHM (1) 3,422 3,417 Total $ 21,591 $ 21,133 Redeemable noncontrolling interests $ 17,216 $ 16,972 Noncontrolling interests $ 4,375 $ 4,161 _____________________ (1) Only includes redeemable noncontrolling interests. The following tables present a rollforward of the Company’s redeemable noncontrolling interests and noncontrolling interests for the periods indicated: Three months ended Six months ended June 30, 2017 June 30, 2017 Redeemable noncontrolling interests Noncontrolling interests Redeemable noncontrolling interests Noncontrolling interests (In thousands) Noncontrolling interests at beginning of period $ 17,232 $ 3,993 $ 16,972 $ 4,161 Net income attributable to noncontrolling interests 859 291 1,583 533 Distributions (842 ) (284 ) (1,545 ) (519 ) Purchases/ (sales) of ownership interests 66 — 132 — Amortization of equity compensation 102 250 204 506 Adjustments to fair value (201 ) 125 (130 ) (306 ) Noncontrolling interests at end of period $ 17,216 $ 4,375 $ 17,216 $ 4,375 Three months ended Six months ended June 30, 2016 June 30, 2016 Redeemable noncontrolling interests Noncontrolling interests Redeemable noncontrolling interests Noncontrolling interests (In thousands) Noncontrolling interests at beginning of period $ 16,938 $ 3,116 $ 18,088 $ 3,393 Net income attributable to noncontrolling interests 769 220 1,487 413 Distributions (788 ) (198 ) (1,404 ) (440 ) Purchases/ (sales) of ownership interests (908 ) (18 ) (766 ) (18 ) Amortization of equity compensation 76 132 187 264 Adjustments to fair value (244 ) 127 (1,749 ) (233 ) Noncontrolling interests at end of period $ 15,843 $ 3,379 $ 15,843 $ 3,379

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Notes)	6 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Comprehensive Income (Loss) Note [Text Block]	Accumulated Other Comprehensive Income The following table presents a summary of the amounts reclassified from accumulated other comprehensive income/ (loss) for the three and six months ended June 30, 2017 and 2016 : Description of component of accumulated other comprehensive income/ (loss) Three months ended June 30, Six months ended June 30, Affected line item in Statement of Operations 2017 2016 2017 2016 (In thousands) (In thousands) Adjustment for realized gains/ (losses) on available-for-sale securities, net: Pre-tax $ 237 $ 245 $ 256 $ 246 Gain on sale of investments, net Tax expense/ (benefit) 96 88 104 88 Income tax expense Net $ 141 $ 157 $ 152 $ 158 Net income attributable to the Company Net realized gain/ (loss) on cash flow hedges: Hedges related to deposits: Pre-tax $ (357 ) $ (453 ) $ (660 ) $ (914 ) Interest expense on deposits Pre-tax 2 2 (1 ) 45 Other income Tax expense/ (benefit) (149 ) (185 ) (275 ) (357 ) Income tax expense Net $ (206 ) $ (266 ) $ (386 ) $ (512 ) Net income attributable to the Company Total reclassifications for the period, net of tax $ (65 ) $ (109 ) $ (234 ) $ (354 )

Restructuring

Restructuring	6 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	Restructuring In the fourth quarter of 2014, the Company incurred restructuring charges related to the acquisition of Banyan Partners, LLC. The purpose of this restructuring was to realign the management structure within the Wealth Management and Trust segment. The total cost of the restructuring incurred in Q4 2014 was $0.7 million . In 2015, the Company incurred additional restructuring charges to further refine the management structure within the Wealth Management and Trust segment. The total cost of the restructuring charges in 2015 was $3.7 million . In the first and second quarters of 2016, the Company incurred additional costs of $1.1 million and $0.9 million , respectively, in continued refinement of the management structure within the Wealth Management and Trust segment. The Company does not anticipate any additional restructuring costs related to this plan as of the date of this filing. Restructuring expenses incurred since the plan of restructuring was first implemented in 2014 totaled $6.4 million , all within the Wealth Management and Trust segment. The following table presents a summary of the restructuring activity for the three and six months ended June 30, 2017 and 2016 : Severance Charges Total (In thousands) Accrued charges at December 31, 2016 $ 1,977 $ 1,977 Costs paid (618 ) (618 ) Accrued charges at March 31, 2017 1,359 1,359 Costs paid (335 ) (335 ) Accrued charges at June 30, 2017 $ 1,024 $ 1,024 Accrued charges at December 31, 2015 $ 3,305 $ 3,305 Costs incurred 1,112 1,112 Costs paid (849 ) (849 ) Accrued charges at March 31, 2016 3,568 3,568 Costs incurred 905 905 Costs paid (1,214 ) (1,214 ) Accrued charges at June 30, 2016 $ 3,259 $ 3,259

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recent Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). ASU 2014-09 replaces existing revenue recognition standards and expands the disclosure requirements for revenue agreements with customers. ASU 2014-09 has been subsequently amended by additional ASUs, including ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) and ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, collectively, “ASU 2014-09 et. al. ” . Under the new standard, a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration which the company expects to receive in exchange for those goods or services. ASU 2014-09 et. al. does not apply to revenue associated with financial instruments such as loans and securities. Therefore, the Company’s net interest income will not be impacted by this new standard. ASU 2014-09 et. al. is effective in the first quarter of 2018. Although the Company does not anticipate any material impact of ASU 2014-09 et. al. , the Company is still assessing the full impact of implementation on its consolidated financial statements and does expect additional financial statement disclosures and associated internal controls to be implemented along with the adoption of this ASU. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . This ASU update amends current lease accounting and requires all leases, other than short-term leases, to be reported on the balance sheet through the recognition of a right-of-use asset and a corresponding liability for future lease obligations. The amended guidance will be effective for fiscal years beginning after December 15, 2018, including interim periods within those annual periods and will require transition utilizing a modified retrospective approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption of this ASU is permitted although the Company does not plan to early adopt. The Company does not anticipate a material impact to revenue or operating expenses as a result of the adoption of this ASU. The Company expects that this ASU will gross up the assets and liabilities on the balance sheet related to the lease assets and liabilities. In March 2016, the FASB issued ASU 2016-09. This update is intended to simplify several aspects of the accounting for employee share-based plans such as income tax consequences, classification of awards as either liabilities or equity on the balance sheet, and classification on the statement of cash flows. The Company adopted this ASU on January 1, 2017. The adoption of this ASU will result in fluctuations in the Company’s earnings due to changes in the Company’s stock price between issuance date and settlement date of employee share-based transactions. In addition, the Company anticipates that certain stock options will expire unexercised, due to being out of the money, and this ASU requires the previous tax benefits to be reversed. For the six months ended June 30, 2017, the impact on the Company’s income tax expense related to the adoption of this ASU was a decrease of $0.1 million. In June 2016, the FASB issued ASU 2016-13, Financial Instruments (Topic 326) (“ASU 2016-13”). This update is intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. To achieve this objective, the amendments in this update replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU will be effective for fiscal years beginning after December 15, 2019. Early adoption is available as of the fiscal year beginning after December 15, 2018. The Company does not plan on adopting early. The impact of this ASU on the Company’s consolidated financial statements will depend on factors at the time of adoption such as the balance and type of loans on the balance sheet, the Company’s loan loss history, and various qualitative factors. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) (“ASU 2016-15”). This update is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those years. Early adoption is permitted, provided that all of the amendments are adopted in the same period, however the Company does not plan to early adopt. The guidance requires application using a retrospective transition method. The Company does not expect that this ASU will have a significant impact on its consolidated financial statements. In January 2017, the FASB issued ASU 2017-04. This update is the result of the first phase of a two phase project by the FASB to reduce the cost and complexity of the goodwill impairment test. The objective of Phase 1 of the project, which resulted in ASU 2017-04, is to simplify how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. Instead, under the amendments in ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. Under the provisions of this update, an entity still has the option to perform the qualitative assessment, or Step 0 test, for a reporting unit to determine if the quantitative impairment test is necessary. This ASU will be effective for any annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company elected to early adopt this ASU as of January 1, 2017. The adoption of this ASU could increase or decrease the amount of a goodwill impairment charge should any of the Company’s reporting units with goodwill fail a Step 1 test in the future, as compared to the amount of a goodwill impairment charge under the existing standards depending on the fair value of the reporting unit’s assets. In March 2017, the FASB issued ASU 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities (“ASU 2017-08”). This update amends the amortization period for certain purchased callable debt securities held at a premium. The amortization period for the premium on such securities is being shortened to the earliest call date. Under current GAAP, entities generally amortize the premium as an adjustment of yield over the contractual life of the instrument. ASU 2017-08 is effective for fiscal years beginning after December 15, 2018, and interim periods within those years. Early adoption is permitted, including in an interim period. The guidance requires application using a modified retrospective transition method through a cumulative-effect adjustment to beginning retained earnings. The Company early adopted this ASU as of July 1, 2017, which did not have a significant impact on the consolidated financial statements.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	The following tables present the computations of basic and diluted EPS: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands, except share and per share data) Basic earnings per share - Numerator: Net income from continuing operations $ 23,493 $ 16,142 $ 38,489 $ 33,029 Less: Net income attributable to noncontrolling interests 1,150 989 2,116 1,900 Net income from continuing operations attributable to the Company 22,343 15,153 36,373 31,129 Decrease/ (increase) in noncontrolling interests’ redemption values (1) 292 (101 ) (5 ) 479 Dividends on preferred stock (869 ) (869 ) (1,738 ) (1,738 ) Total adjustments to income attributable to common shareholders (577 ) (970 ) (1,743 ) (1,259 ) Net income from continuing operations attributable to common shareholders, treasury stock method 21,766 14,183 34,630 29,870 Net income from discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to common shareholders, treasury stock method $ 22,829 $ 15,428 $ 37,325 $ 33,180 Basic earnings per share - Denominator: Weighted average basic common shares outstanding 82,298,493 81,236,809 82,125,795 81,269,154 Per share data - Basic earnings per share from: Continuing operations $ 0.27 $ 0.17 $ 0.42 $ 0.37 Discontinued operations $ 0.01 $ 0.02 $ 0.03 $ 0.04 Total attributable to common shareholders $ 0.28 $ 0.19 $ 0.45 $ 0.41 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands, except share and per share data) Diluted earnings per share - Numerator: Net income from continuing operations attributable to common shareholders, after assumed dilution $ 21,766 $ 14,183 $ 34,630 $ 29,870 Net income from discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to common shareholders, after assumed dilution $ 22,829 $ 15,428 $ 37,325 $ 33,180 Diluted earnings per share - Denominator: Weighted average basic common shares outstanding 82,298,493 81,236,809 82,125,795 81,269,154 Dilutive effect of: Stock options, performance-based and time-based restricted stock, and performance-based and time-based restricted stock units, and other dilutive securities (2) 1,338,939 1,058,425 1,394,605 1,019,488 Warrants to purchase common stock (2) 1,104,248 1,224,705 1,137,909 1,102,415 Dilutive common shares 2,443,187 2,283,130 2,532,514 2,121,903 Weighted average diluted common shares outstanding (2) 84,741,680 83,519,939 84,658,309 83,391,057 Per share data - Diluted earnings per share from: Continuing operations $ 0.26 $ 0.17 $ 0.41 $ 0.36 Discontinued operations $ 0.01 $ 0.01 $ 0.03 $ 0.04 Total attributable to common shareholders $ 0.27 $ 0.18 $ 0.44 $ 0.40 Dividends per share declared and paid on common stock $ 0.11 $ 0.10 $ 0.22 $ 0.20 _____________________ (1) See Part II. Item 8. “Financial Statements and Supplementary Data—Note 14: Noncontrolling Interests” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 for a description of the redemption values related to the redeemable noncontrolling interests. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 480, Distinguishing Liabilities from Equity (“ASC 480”), an increase in redemption value from period to period reduces income attributable to common shareholders. Decreases in redemption value from period to period increase income attributable to common shareholders, but only to the extent that the cumulative change in redemption value remains a cumulative increase since adoption of this standard in the first quarter of 2009. (2) The diluted EPS computations for the three and six months ended June 30, 2017 and 2016 do not assume the conversion, exercise, or contingent issuance of the following shares for the following periods because the result would have been anti-dilutive for the periods indicated. As a result of the anti-dilution, the potential common shares excluded from the diluted EPS computation are as follows: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Shares excluded due to exercise price exceeding the average market price of common shares during the period (total outstanding): (In thousands) Potential common shares from: Stock options 54 315 87 243 Total shares excluded due to exercise price exceeding the average market price of common shares during the period 54 315 87 243

Reportable Segments (Tables)

Reportable Segments (Tables)	6 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	The following tables present a reconciliation of the revenues, profits, assets, and other significant items of reportable segments as of and for the three and six months ended June 30, 2017 and 2016 . Interest expense on junior subordinated debentures is reported at the Holding Company. Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Private Banking (In thousands) Net interest income $ 57,783 $ 49,713 $ 112,039 $ 100,133 Fees and other income 2,634 2,227 4,462 5,605 Total revenues 60,417 51,940 116,501 105,738 Provision/ (credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Operating expense 36,904 32,093 71,962 63,368 Income before income taxes 29,627 22,382 50,834 48,038 Income tax expense 9,209 7,038 15,478 15,412 Net income from continuing operations 20,418 15,344 35,356 32,626 Net income attributable to the Company $ 20,418 $ 15,344 $ 35,356 $ 32,626 Assets $ 7,951,911 $ 7,417,465 $ 7,951,911 $ 7,417,465 Depreciation $ 1,343 $ 1,125 $ 2,714 $ 2,271 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Wealth Management and Trust (In thousands) Fees and other income $ 11,274 $ 11,300 $ 22,195 $ 22,356 Operating expense (1) 11,937 13,738 25,810 29,590 Income/ (loss) before income taxes (663 ) (2,438 ) (3,615 ) (7,234 ) Income tax expense/ (benefit) (239 ) (970 ) (1,405 ) (2,909 ) Net income/ (loss) from continuing operations (424 ) (1,468 ) (2,210 ) (4,325 ) Net income/ (loss) attributable to the Company $ (424 ) $ (1,468 ) $ (2,210 ) $ (4,325 ) Assets $ 74,842 $ 86,397 $ 74,842 $ 86,397 Amortization of intangibles $ 727 $ 745 $ 1,454 $ 1,490 Depreciation $ 341 $ 269 $ 678 $ 500 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Investment Management (In thousands) Net interest income $ 4 $ 4 $ 8 $ 8 Fees and other income 11,091 10,646 21,950 21,305 Total revenues 11,095 10,650 21,958 21,313 Operating expense 8,346 7,895 16,700 15,919 Income before income taxes 2,749 2,755 5,258 5,394 Income tax expense 894 898 1,738 1,777 Net income from continuing operations 1,855 1,857 3,520 3,617 Noncontrolling interests 512 469 974 946 Net income attributable to the Company $ 1,343 $ 1,388 $ 2,546 $ 2,671 Assets $ 91,915 $ 93,975 $ 91,915 $ 93,975 Amortization of intangibles $ 651 $ 651 $ 1,301 $ 1,301 Depreciation $ 61 $ 74 $ 127 $ 147 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Wealth Advisory (In thousands) Net interest income $ 29 $ 4 $ 46 $ 7 Fees and other income 12,980 12,579 25,823 25,321 Total revenues 13,009 12,583 25,869 25,328 Operating expense 8,943 9,171 18,386 18,865 Income before income taxes 4,066 3,412 7,483 6,463 Income tax expense 1,511 1,266 2,798 2,414 Net income from continuing operations 2,555 2,146 4,685 4,049 Noncontrolling interests 638 520 1,142 954 Net income attributable to the Company $ 1,917 $ 1,626 $ 3,543 $ 3,095 Assets $ 75,247 $ 76,370 $ 75,247 $ 76,370 Amortization of intangibles $ 48 $ 190 $ 97 $ 381 Depreciation $ 235 $ 220 $ 461 $ 435 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Holding Company and Eliminations (In thousands) Net interest income $ (671 ) $ (552 ) $ (1,306 ) $ (1,100 ) Fees and other income 39 43 94 230 Total revenues (632 ) (509 ) (1,212 ) (870 ) Operating expense 1,691 1,834 3,743 3,698 Income/ (loss) before income taxes (2,323 ) (2,343 ) (4,955 ) (4,568 ) Income tax expense/ (benefit) (1,412 ) (606 ) (2,093 ) (1,630 ) Net income/ (loss) from continuing operations (911 ) (1,737 ) (2,862 ) (2,938 ) Discontinued operations 1,063 1,245 2,695 3,310 Net income/ (loss) attributable to the Company $ 152 $ (492 ) $ (167 ) $ 372 Assets $ (86,269 ) $ (94,606 ) $ (86,269 ) $ (94,606 ) Depreciation $ — $ 10 $ — $ 21 Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 Total Company (In thousands) Net interest income $ 57,145 $ 49,169 $ 110,787 $ 99,048 Fees and other income 38,018 36,795 74,524 74,817 Total revenues 95,163 85,964 185,311 173,865 Provision/ (credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Operating expense 67,821 64,731 136,601 131,440 Income before income taxes 33,456 23,768 55,005 48,093 Income tax expense 9,963 7,626 16,516 15,064 Net income from continuing operations 23,493 16,142 38,489 33,029 Noncontrolling interests 1,150 989 2,116 1,900 Discontinued operations 1,063 1,245 2,695 3,310 Net income attributable to the Company $ 23,406 $ 16,398 $ 39,068 $ 34,439 Assets $ 8,107,646 $ 7,579,601 $ 8,107,646 $ 7,579,601 Amortization of intangibles $ 1,426 $ 1,586 $ 2,852 $ 3,172 Depreciation $ 1,980 $ 1,698 $ 3,980 $ 3,374 _____________________ (1) Operating expense related to the Wealth Management and Trust segment includes no restructuring expense for the three and six months ended June 30, 2017 , respectively, and $0.9 million and $2.0 million of restructuring expenses for the three months and six months ended June 30, 2016 , respectively.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2017
Investments [Abstract]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	The following table presents a summary of investment securities: Amortized Cost Unrealized Fair Value Gains Losses (In thousands) As of June 30, 2017 Available-for-sale securities at fair value: U.S. government and agencies $ 35,214 $ 38 $ (593 ) $ 34,659 Government-sponsored entities 305,318 997 (1,185 ) 305,130 Municipal bonds 294,616 4,674 (2,187 ) 297,103 Mortgage-backed securities (1) 557,148 785 (11,429 ) 546,504 Other 4,875 454 (5 ) 5,324 Total $ 1,197,171 $ 6,948 $ (15,399 ) $ 1,188,720 Held-to-maturity securities at amortized cost: U.S. government and agencies $ 14,975 $ — (4 ) $ 14,971 Mortgage-backed securities (1) $ 84,049 $ 75 $ (382 ) $ 83,742 Total $ 99,024 $ 75 $ (386 ) $ 98,713 As of December 31, 2016 Available-for-sale securities at fair value: U.S. government and agencies $ 40,704 $ 86 $ (854 ) $ 39,936 Government-sponsored entities 337,865 1,058 (2,259 ) 336,664 Municipal bonds 296,271 2,116 (4,990 ) 293,397 Mortgage-backed securities (1) 584,960 928 (15,561 ) 570,327 Other 23,361 447 — 23,808 Total $ 1,283,161 $ 4,635 $ (23,664 ) $ 1,264,132 Held-to-maturity securities at amortized cost: Mortgage-backed securities (1) $ 93,079 $ 1 $ (476 ) $ 92,604 Total $ 93,079 $ 1 $ (476 ) $ 92,604 _____________________ (1) All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.
Investments Classified by Contractual Maturity Date [Table Text Block]	The following table presents the maturities of available-for-sale investment securities, based on contractual maturity, as of June 30, 2017 . Certain securities are callable before their final maturity. Additionally, certain securities (such as mortgage-backed securities) are shown within the table below based on their final (contractual) maturity, but due to prepayments and amortization are expected to have shorter lives. Available-for-sale Securities Amortized cost Fair value (In thousands) Within one year $ 47,251 $ 47,738 After one, but within five years 334,792 336,184 After five, but within ten years 334,083 327,470 Greater than ten years 481,045 477,328 Total $ 1,197,171 $ 1,188,720 The following table presents the maturities of held-to-maturity investment securities, based on contractual maturity, as of June 30, 2017 . Held-to-maturity Securities Amortized cost Fair value (In thousands) Within one year $ 14,975 $ 14,971 After one, but within five years — — After five, but within ten years 14,327 14,300 Greater than ten years 69,722 69,442 Total $ 99,024 $ 98,713
Realized Gain (Loss) on Investments [Table Text Block]	The following table presents the proceeds from sales, gross realized gains and gross realized losses for available-for-sale securities that were sold or called during the following periods: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Proceeds from sales and calls $ 70,314 $ 13,840 $ 103,031 $ 29,132 Realized gains 255 245 274 247 Realized losses (18 ) — (18 ) (1 )
Schedule of Unrealized Loss on Investments [Table Text Block]	The following tables present information regarding securities as of June 30, 2017 and December 31, 2016 having temporary impairment, due to the fair values having declined below the amortized cost of the individual securities, and the time period that the investments have been temporarily impaired. Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses # of securities June 30, 2017 Available-for-sale securities (In thousands) U.S. government and agencies $ 24,367 $ (587 ) $ 292 $ (6 ) $ 24,659 $ (593 ) 4 Government-sponsored entities 97,093 (1,185 ) — — 97,093 (1,185 ) 15 Municipal bonds 74,816 (2,144 ) 2,020 (43 ) 76,836 (2,187 ) 47 Mortgage-backed securities (1) 457,585 (9,874 ) 45,366 (1,555 ) 502,951 (11,429 ) 103 Other 16 (5 ) — — 16 (5 ) 2 Total $ 653,877 $ (13,795 ) $ 47,678 $ (1,604 ) $ 701,555 $ (15,399 ) 171 Held-to-maturity securities U.S. government and agencies 14,971 (4 ) — — 14,971 (4 ) 4 Mortgage-backed securities (1) $ 66,362 $ (382 ) $ — $ — $ 66,362 $ (382 ) 13 Total $ 81,333 $ (386 ) $ — $ — $ 81,333 $ (386 ) 17 Less than 12 months 12 months or longer Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses # of securities (In thousands, except number of securities) December 31, 2016 Available-for-sale securities U.S. government and agencies $ 19,094 $ (838 ) $ 643 $ (16 ) $ 19,737 $ (854 ) 4 Government-sponsored entities 125,412 (2,259 ) — — 125,412 (2,259 ) 18 Municipal bonds 182,395 (4,957 ) 2,720 (33 ) 185,115 (4,990 ) 109 Mortgage-backed securities (1) 492,008 (13,988 ) 41,544 (1,573 ) 533,552 (15,561 ) 99 Other — — — — — — — Total $ 818,909 $ (22,042 ) $ 44,907 $ (1,622 ) $ 863,816 $ (23,664 ) 230 Held-to-maturity securities Mortgage-backed securities (1) $ 87,483 $ (476 ) $ — $ — $ 87,483 $ (476 ) 15 Total $ 87,483 $ (476 ) $ — $ — $ 87,483 $ (476 ) 15 _____________________ (1) All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following tables present the Company’s assets and liabilities measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 , aggregated by the level in the fair value hierarchy within which those measurements fall: As of June 30, 2017 Fair value measurements at reporting date using: Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) Assets: Available-for-sale securities: U.S. government and agencies $ 34,659 $ 34,366 $ 293 $ — Government-sponsored entities 305,130 — 305,130 — Municipal bonds 297,103 — 297,103 — Mortgage-backed securities 546,504 — 546,504 — Other 5,324 5,324 — — Total available-for-sale securities 1,188,720 39,690 1,149,030 — Derivatives - interest rate customer swaps 16,120 — 16,120 — Derivatives - customer foreign exchange forwards 1 — 1 — Derivatives - risk participation agreement 1 — 1 — Other investments 6,624 6,624 — — Liabilities: Derivatives - interest rate customer swaps $ 16,294 $ — $ 16,294 $ — Derivatives - customer foreign exchange forwards 1 — 1 — Derivatives - interest rate swaps 736 — 736 — Derivatives - risk participation agreement 141 — 141 — Other liabilities 6,624 6,624 — — Fair value measurements at reporting date using: As of December 31, 2016 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) Assets: Available-for-sale securities: U.S. government and agencies $ 39,936 $ 39,293 $ 643 $ — Government-sponsored entities 336,664 — 336,664 — Municipal bonds 293,397 — 293,397 — Mortgage-backed securities 570,327 — 570,327 — Other 23,808 23,808 — — Total available-for-sale securities 1,264,132 63,101 1,201,031 — Derivatives - interest rate customer swaps 17,032 — 17,032 — Derivatives - risk participation agreement 15 — 15 — Other investments 6,110 6,110 — — Liabilities: Derivatives - interest rate customer swaps $ 16,560 $ — $ 16,560 $ — Derivatives - interest rate swaps 1,040 — 1,040 — Derivatives - risk participation agreement 6 — 6 — Other liabilities 6,110 6,110 — —
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]	The following tables present the Company’s assets and liabilities measured at fair value on a non-recurring basis during the periods ended June 30, 2017 and 2016 , respectively, aggregated by the level in the fair value hierarchy within which those measurements fall: As of June 30, 2017 Fair value measurements at reporting date using: Gain (losses) from fair value changes Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Three months ended June 30, 2017 Six months ended June 30, 2017 (In thousands) Assets: Impaired loans (1) $ 1,040 $ — $ — $ 1,040 $ (221 ) $ (219 ) _____________________ (1) Collateral-dependent impaired loans held at June 30, 2017 that had write-downs in fair value or whose specific reserve changed during the first six months of 2017 . As of June 30, 2016 Fair value measurements at reporting date using: Gain (losses) from fair value changes Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Three months ended June 30, 2016 Six months ended June 30, 2016 (In thousands) Assets: Impaired loans (1) $ 7,806 $ — $ — $ 7,806 $ — $ (2,064 ) _____________________ (1) Collateral-dependent impaired loans held at June 30, 2016 that had write-downs in fair value or whose specific reserve changed during the first six months of 2016 .
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Table Text Block]	The following table presents additional quantitative information about assets measured at fair value on a non-recurring basis for which the Company has utilized Level 3 inputs to determine fair value: As of June 30, 2017 Fair Value Valuation Technique Unobservable Input Range of Inputs Utilized Weighted Average of Inputs Utilized (In thousands) Impaired Loans $ 1,040 Appraisals of Collateral Discount for costs to sell 0% - 7% 6% Appraisal adjustments 0% - 20% 16% As of June 30, 2016 Fair Value Valuation Technique Unobservable Input Range of Inputs Utilized Weighted Average of Inputs Utilized (In thousands) Impaired Loans $ 7,806 Appraisals of Collateral Discount for costs to sell 6% - 13% 7% Appraisal adjustments 20% - 40% 37%
Fair Value, by Balance Sheet Grouping [Table Text Block]	The following tables present the carrying values and fair values of the Company’s financial instruments that are not measured at fair value on a recurring basis: As of June 30, 2017 Book Value Fair Value Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) FINANCIAL ASSETS: Cash and cash equivalents $ 97,032 $ 97,032 $ 97,032 $ — $ — Investment securities held-to-maturity 99,024 98,713 14,971 83,742 — Loans held for sale 2,870 2,926 — 2,926 — Loans, net 6,204,919 6,237,522 — — 6,237,522 Other financial assets 78,887 78,887 — 78,887 — FINANCIAL LIABILITIES: Deposits 6,381,339 6,381,071 — 6,381,071 — Securities sold under agreements to repurchase 29,232 29,232 — 29,232 — Federal funds purchased 40,000 40,000 — 40,000 — Federal Home Loan Bank borrowings 618,989 620,176 — 620,176 — Junior subordinated debentures 106,363 96,363 — — 96,363 Other financial liabilities 1,889 1,889 — 1,889 — As of December 31, 2016 Book Value Fair Value Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) (In thousands) FINANCIAL ASSETS: Cash and cash equivalents $ 106,557 $ 106,557 $ 106,557 $ — $ — Investment securities held-to-maturity 93,079 92,604 — 92,604 — Loans held for sale 3,464 3,428 — 3,428 — Loans, net 6,036,277 6,021,611 — — 6,021,611 Other financial assets 77,956 77,956 — 77,956 — FINANCIAL LIABILITIES: Deposits 6,085,146 6,084,765 — 6,084,765 — Securities sold under agreements to repurchase 59,624 59,624 — 59,624 — Federal funds purchased 80,000 80,000 — 80,000 — Federal Home Loan Bank borrowings 734,205 734,941 — 734,941 — Junior subordinated debentures 106,363 96,363 — — 96,363 Other financial liabilities 1,942 1,942 — 1,942 —

Loan Portfolio and Credit Qua26

Loan Portfolio and Credit Quality (Tables)	6 Months Ended
	Jun. 30, 2017
Loans and Leases Receivable Disclosure [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	The following table presents a summary of the loan portfolio by portfolio segment and class of receivable as of the dates indicated: June 30, 2017 December 31, 2016 (In thousands) Commercial and industrial $ 541,756 $ 611,370 Commercial tax exempt 416,157 398,604 Total commercial and industrial 957,913 1,009,974 Commercial real estate 2,356,345 2,302,244 Construction and land 130,904 104,839 Residential 2,525,225 2,379,861 Home equity 108,549 118,817 Consumer and other 200,992 198,619 Total $ 6,279,928 $ 6,114,354
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	The following table presents nonaccrual loans receivable by portfolio segment and class of receivable as of the dates indicated: June 30, 2017 December 31, 2016 (In thousands) Commercial and industrial $ 697 $ 572 Commercial tax exempt — — Total commercial and industrial 697 572 Commercial real estate 3,004 4,583 Construction and land 232 179 Residential 11,173 10,908 Home equity 1,070 1,072 Consumer and other — 1 Total $ 16,176 $ 17,315
Past Due Financing Receivables [Table Text Block]	The following tables show the payment status of loans by class of receivable as of the dates indicated: June 30, 2017 Accruing Past Due Nonaccrual Loans 30-59 Days Past Due 60-89 Days Past Due Total Accruing Past Due Current 30-89 Days Past Due 90 Days or Greater Past Due Total Non-Accrual Loans Current Accruing Loans Total Loans Receivable (In thousands) Commercial and industrial $ 665 $ — $ 665 $ 445 $ 78 $ 174 $ 697 $ 540,394 $ 541,756 Commercial tax exempt — — — — — — — 416,157 416,157 Commercial real estate — 182 182 970 101 1,933 3,004 2,353,159 2,356,345 Construction and land — — — 65 17 150 232 130,672 130,904 Residential — 1,140 1,140 4,251 233 6,689 11,173 2,512,912 2,525,225 Home equity 90 339 429 — — 1,070 1,070 107,050 108,549 Consumer and other 747 31 778 — — — — 200,214 200,992 Total $ 1,502 $ 1,692 $ 3,194 $ 5,731 $ 429 $ 10,016 $ 16,176 $ 6,260,558 $ 6,279,928 December 31, 2016 Accruing Past Due Nonaccrual Loans 30-59 Days Past Due 60-89 Days Past Due Total Accruing Past Due Current 30-89 Days Past Due 90 Days or Greater Past Due Total Non-Accrual Loans Current Accruing Loans Total Loans Receivable (In thousands) Commercial and industrial $ 541 $ 1,078 $ 1,619 $ 537 $ — $ 35 $ 572 $ 609,179 $ 611,370 Commercial tax exempt — — — — — — — 398,604 398,604 Commercial real estate 3,096 — 3,096 2,311 835 1,437 4,583 2,294,565 2,302,244 Construction and land — — — 129 12 38 179 104,660 104,839 Residential 3,646 536 4,182 2,148 1,274 7,486 10,908 2,364,771 2,379,861 Home equity 245 — 245 — 80 992 1,072 117,500 118,817 Consumer and other 5,995 — 5,995 1 — — 1 192,623 198,619 Total $ 13,523 $ 1,614 $ 15,137 $ 5,126 $ 2,201 $ 9,988 $ 17,315 $ 6,081,902 $ 6,114,354
Financing Receivable Credit Quality Indicators [Table Text Block]	The following tables present the loan portfolio’s credit risk profile by internally assigned grade and class of receivable as of the dates indicated: June 30, 2017 By Loan Grade or Nonaccrual Status Pass Special Mention Accruing Substandard Nonaccrual Loans Total (In thousands) Commercial and industrial $ 522,349 $ 12,135 $ 6,575 $ 697 $ 541,756 Commercial tax exempt 410,535 5,622 — — 416,157 Commercial real estate 2,273,184 40,177 39,980 3,004 2,356,345 Construction and land 123,420 4,330 2,922 232 130,904 Residential 2,512,682 — 1,370 11,173 2,525,225 Home equity 107,479 — — 1,070 108,549 Consumer and other 200,741 — 251 — 200,992 Total $ 6,150,390 $ 62,264 $ 51,098 $ 16,176 $ 6,279,928 December 31, 2016 By Loan Grade or Nonaccrual Status Pass Special Mention Accruing Substandard Nonaccrual Loans Total (In thousands) Commercial and industrial $ 591,388 $ 10,133 $ 9,277 $ 572 $ 611,370 Commercial tax exempt 388,544 10,060 — — 398,604 Commercial real estate 2,230,732 17,233 49,696 4,583 2,302,244 Construction and land 101,254 109 3,297 179 104,839 Residential 2,367,554 — 1,399 10,908 2,379,861 Home equity 117,745 — — 1,072 118,817 Consumer and other 198,616 — 2 1 198,619 Total $ 5,995,833 $ 37,535 $ 63,671 $ 17,315 $ 6,114,354
Impaired Financing Receivables [Table Text Block]	The following tables present, by class of receivable, the balance of impaired loans with and without a related allowance, the associated allowance for those impaired loans with a related allowance, and the total unpaid principal on impaired loans: As of and for the three and six months ended June 30, 2017 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,771 $ 2,377 n/a $ 1,667 $ 1,703 $ 12 $ 25 Commercial tax exempt — — n/a 1,084 1,859 80 80 Commercial real estate 2,879 6,429 n/a 3,358 3,824 724 970 Construction and land 232 568 n/a 190 181 — — Residential 9,600 9,971 n/a 9,561 8,958 78 179 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 14,482 19,345 n/a 15,860 16,525 894 1,254 With an allowance recorded: Commercial and industrial — — $ — — — — — Commercial tax exempt — — — — — — — Commercial real estate 6,996 7,425 453 7,011 7,042 96 171 Construction and land — — — — — — — Residential 2,503 2,503 507 2,613 3,312 23 62 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Subtotal 9,535 9,964 981 9,661 10,391 119 233 Total: Commercial and industrial 1,771 2,377 — 1,667 1,703 12 25 Commercial tax exempt — — — 1,084 1,859 80 80 Commercial real estate 9,875 13,854 453 10,369 10,866 820 1,141 Construction and land 232 568 — 190 181 — — Residential 12,103 12,474 507 12,174 12,270 101 241 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Total $ 24,017 $ 29,309 $ 981 $ 25,521 $ 26,916 $ 1,013 $ 1,487 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the three and six months ended June 30, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 8,595 $ 10,622 n/a $ 5,668 $ 4,107 $ 59 $ 71 Commercial tax exempt — — n/a — — — — Commercial real estate 7,780 14,088 n/a 9,794 10,764 504 542 Construction and land 861 1,793 n/a 2,337 1,797 — — Residential 7,653 8,013 n/a 7,565 7,389 57 114 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 24,889 34,516 n/a 25,364 24,057 620 727 With an allowance recorded: Commercial and industrial 37 37 $ 22 44 31 — 1 Commercial tax exempt — — — — — — — Commercial real estate 7,233 7,662 640 7,266 7,294 78 158 Construction and land — — — — 943 — — Residential 5,682 5,682 439 5,630 5,958 36 79 Home equity — — — — — — — Consumer and other — — — — — — — Subtotal 12,952 13,381 1,101 12,940 14,226 114 238 Total: Commercial and industrial 8,632 10,659 22 5,712 4,138 59 72 Commercial tax exempt — — — — — — — Commercial real estate 15,013 21,750 640 17,060 18,058 582 700 Construction and land 861 1,793 — 2,337 2,740 — — Residential 13,335 13,695 439 13,195 13,347 93 193 Home equity — — — — — — — Consumer and other — — — — — — — Total $ 37,841 $ 47,897 $ 1,101 $ 38,304 $ 38,283 $ 734 $ 965 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the year ended December 31, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,793 $ 2,155 n/a $ 5,288 $ 249 Commercial tax exempt — — n/a — — Commercial real estate 4,488 9,647 n/a 8,520 1,032 Construction and land 179 507 n/a 1,069 48 Residential 8,134 8,506 n/a 7,446 211 Home equity — — n/a — — Consumer and other — — n/a — — Subtotal 14,594 20,815 n/a 22,323 1,540 With an allowance recorded: Commercial and industrial — — $ — 31 1 Commercial tax exempt — — — — — Commercial real estate 7,115 7,544 548 7,230 314 Construction and land — — — 507 — Residential 4,284 4,284 565 5,505 143 Home equity 37 37 22 3 — Consumer and other — — — — — Subtotal 11,436 11,865 1,135 13,276 458 Total: Commercial and industrial 1,793 2,155 — 5,319 250 Commercial tax exempt — — — — — Commercial real estate 11,603 17,191 548 15,750 1,346 Construction and land 179 507 — 1,576 48 Residential 12,418 12,790 565 12,951 354 Home equity 37 37 22 3 — Consumer and other — — — — — Total $ 26,030 $ 32,680 $ 1,135 $ 35,599 $ 1,998 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. The following tables present the Company’s allowance for loan losses and loan portfolio at June 30, 2017 and December 31, 2016 by portfolio segment, disaggregated by method of impairment analysis. The Company had no loans acquired with deteriorated credit quality at June 30, 2017 or December 31, 2016 . June 30, 2017 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,771 $ — $ 956,142 $ 11,672 $ 957,913 $ 11,672 Commercial real estate 9,875 453 2,346,470 47,683 2,356,345 48,136 Construction and land 232 — 130,672 3,585 130,904 3,585 Residential 12,103 507 2,513,122 9,775 2,525,225 10,282 Home equity 36 21 108,513 908 108,549 929 Consumer — — 200,992 405 200,992 405 Total $ 24,017 $ 981 $ 6,255,911 $ 74,028 $ 6,279,928 $ 75,009 December 31, 2016 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,793 $ — $ 1,008,181 $ 12,751 $ 1,009,974 $ 12,751 Commercial real estate 11,603 548 2,290,641 49,864 2,302,244 50,412 Construction and land 179 — 104,660 3,039 104,839 3,039 Residential 12,418 565 2,367,443 9,884 2,379,861 10,449 Home equity 37 22 118,780 1,013 118,817 1,035 Consumer — — 198,619 391 198,619 391 Total $ 26,030 $ 1,135 $ 6,088,324 $ 76,942 $ 6,114,354 $ 78,077
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	There were no loans that were restructured or defaulted as of and during the three and six months ended June 30, 2017 . The following tables present the balance of TDRs that were restructured or defaulted during the periods indicated and the types of concessions granted: As of and for the three months ended June 30, 2016 Restructured in the current quarter TDRs that defaulted that were restructured in prior twelve months # of Loans Pre- modification recorded investment Post- modification recorded investment # of Loans Post- modification recorded investment (Dollars in thousands) Commercial and industrial 2 $ 7,209 $ 7,209 — $ — Commercial tax exempt — — — — — Commercial real estate 1 1,276 1,276 — — Construction and land — — — — — Residential 1 115 116 — — Home equity — — — — — Consumer and other — — — — — Total 4 $ 8,600 $ 8,601 — $ — As of and for the three months ended June 30, 2016 Extension of term Temporary rate reduction Payment deferral Combination of concessions (1) Total concessions # of Post- cation ment # of Post- # of Post- # of Post- # of Post- (Dollars in thousands) Commercial and industrial 2 $ 7,209 — $ — — $ — — $ — 2 $ 7,209 Commercial tax exempt — — — — — — — — — — Commercial real estate — — — — — — 1 1,276 1 1,276 Construction and land — — — — — — — — — — Residential — — 1 116 — — — — 1 116 Home equity — — — — — — — — — — Consumer and other — — — — — — — — — — _____________________ (1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral. As of and for the six months ended June 30, 2016 Restructured in the current quarter TDRs that defaulted that were restructured in prior twelve months # of Loans Pre- modification recorded investment Post- modification recorded investment # of Loans Post- modification recorded investment (Dollars in thousands) Commercial and industrial 3 $ 7,384 $ 7,209 — $ — Commercial tax exempt — — — — — Commercial real estate 1 1,276 1,276 — — Construction and land — — — — — Residential 2 260 261 — — Home equity — — — — — Consumer and other — — — — — Total 6 $ 8,920 $ 8,746 — $ — As of and for the six months ended June 30, 2016 Extension of term Temporary rate reduction Payment deferral Combination of concessions (1) Total concessions # of Post- cation ment # of Post- # of Post- # of Post- # of Post- (Dollars in thousands) Commercial and industrial 2 $ 7,209 — $ — — $ — 1 $ — 3 $ 7,209 Commercial tax exempt — — — — — — — — — — Commercial real estate — — — — — — 1 1,276 1 1,276 Construction and land — — — — — — — — — — Residential — — 2 261 — — — — 2 261 Home equity — — — — — — — — — — Consumer and other — — — — — — — — — — _____________________ (1) Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral.

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2017
Allowance for Loan Losses [Abstract]
Allowance for Credit Losses on Financing Receivables [Table Text Block]	The following tables present a summary of the changes in the allowance for loan losses for the periods indicated: As of and for the three months ended June 30, As of and for the six months ended June 30, 2017 2016 2017 2016 (In thousands) Allowance for loan losses, beginning of period: Commercial and industrial $ 12,291 $ 14,343 $ 12,751 $ 15,814 Commercial real estate 51,164 44,519 50,412 44,215 Construction and land 3,197 5,551 3,039 6,322 Residential 10,090 10,634 10,449 10,544 Home equity 987 1,079 1,035 1,085 Consumer and other 302 301 391 520 Total allowance for loan losses, beginning of period 78,031 76,427 78,077 78,500 Loans charged-off: Commercial and industrial (218 ) — (218 ) (2,108 ) Commercial real estate — — — — Construction and land — — — (400 ) Residential — — (58 ) (501 ) Home equity — — — — Consumer and other (245 ) (19 ) (245 ) (26 ) Total charge-offs (463 ) (19 ) (521 ) (3,035 ) As of and for the three months ended June 30, As of and for the six months ended June 30, 2017 2016 2017 2016 (In thousands) Recoveries on loans previously charged-off: Commercial and industrial 67 82 154 1,376 Commercial real estate 3,479 1,791 3,529 3,942 Construction and land — — — 627 Residential — 4 47 4 Home equity — — — — Consumer and other 9 3 18 7 Total recoveries 3,555 1,880 3,748 5,956 Provision/ (credit) for loan losses: Commercial and industrial (468 ) (1,179 ) (1,015 ) (1,836 ) Commercial real estate (6,507 ) (803 ) (5,805 ) (2,650 ) Construction and land 388 (811 ) 546 (1,809 ) Residential 192 114 (156 ) 705 Home equity (58 ) 60 (106 ) 54 Consumer and other 339 84 241 (132 ) Total provision/(credit) for loan losses (6,114 ) (2,535 ) (6,295 ) (5,668 ) Allowance for loan losses at end of period: Commercial and industrial 11,672 13,246 11,672 13,246 Commercial real estate 48,136 45,507 48,136 45,507 Construction and land 3,585 4,740 3,585 4,740 Residential 10,282 10,752 10,282 10,752 Home equity 929 1,139 929 1,139 Consumer and other 405 369 405 369 Total allowance for loan losses at end of period $ 75,009 $ 75,753 $ 75,009 $ 75,753
Impaired Financing Receivables [Table Text Block]	The following tables present, by class of receivable, the balance of impaired loans with and without a related allowance, the associated allowance for those impaired loans with a related allowance, and the total unpaid principal on impaired loans: As of and for the three and six months ended June 30, 2017 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,771 $ 2,377 n/a $ 1,667 $ 1,703 $ 12 $ 25 Commercial tax exempt — — n/a 1,084 1,859 80 80 Commercial real estate 2,879 6,429 n/a 3,358 3,824 724 970 Construction and land 232 568 n/a 190 181 — — Residential 9,600 9,971 n/a 9,561 8,958 78 179 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 14,482 19,345 n/a 15,860 16,525 894 1,254 With an allowance recorded: Commercial and industrial — — $ — — — — — Commercial tax exempt — — — — — — — Commercial real estate 6,996 7,425 453 7,011 7,042 96 171 Construction and land — — — — — — — Residential 2,503 2,503 507 2,613 3,312 23 62 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Subtotal 9,535 9,964 981 9,661 10,391 119 233 Total: Commercial and industrial 1,771 2,377 — 1,667 1,703 12 25 Commercial tax exempt — — — 1,084 1,859 80 80 Commercial real estate 9,875 13,854 453 10,369 10,866 820 1,141 Construction and land 232 568 — 190 181 — — Residential 12,103 12,474 507 12,174 12,270 101 241 Home equity 36 36 21 37 37 — — Consumer and other — — — — — — — Total $ 24,017 $ 29,309 $ 981 $ 25,521 $ 26,916 $ 1,013 $ 1,487 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the three and six months ended June 30, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance QTD Average Recorded Investment YTD Average Recorded Investment QTD Interest Income Recognized while Impaired YTD Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 8,595 $ 10,622 n/a $ 5,668 $ 4,107 $ 59 $ 71 Commercial tax exempt — — n/a — — — — Commercial real estate 7,780 14,088 n/a 9,794 10,764 504 542 Construction and land 861 1,793 n/a 2,337 1,797 — — Residential 7,653 8,013 n/a 7,565 7,389 57 114 Home equity — — n/a — — — — Consumer and other — — n/a — — — — Subtotal 24,889 34,516 n/a 25,364 24,057 620 727 With an allowance recorded: Commercial and industrial 37 37 $ 22 44 31 — 1 Commercial tax exempt — — — — — — — Commercial real estate 7,233 7,662 640 7,266 7,294 78 158 Construction and land — — — — 943 — — Residential 5,682 5,682 439 5,630 5,958 36 79 Home equity — — — — — — — Consumer and other — — — — — — — Subtotal 12,952 13,381 1,101 12,940 14,226 114 238 Total: Commercial and industrial 8,632 10,659 22 5,712 4,138 59 72 Commercial tax exempt — — — — — — — Commercial real estate 15,013 21,750 640 17,060 18,058 582 700 Construction and land 861 1,793 — 2,337 2,740 — — Residential 13,335 13,695 439 13,195 13,347 93 193 Home equity — — — — — — — Consumer and other — — — — — — — Total $ 37,841 $ 47,897 $ 1,101 $ 38,304 $ 38,283 $ 734 $ 965 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. As of and for the year ended December 31, 2016 Recorded Investment (1) Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized while Impaired (In thousands) With no related allowance recorded: Commercial and industrial $ 1,793 $ 2,155 n/a $ 5,288 $ 249 Commercial tax exempt — — n/a — — Commercial real estate 4,488 9,647 n/a 8,520 1,032 Construction and land 179 507 n/a 1,069 48 Residential 8,134 8,506 n/a 7,446 211 Home equity — — n/a — — Consumer and other — — n/a — — Subtotal 14,594 20,815 n/a 22,323 1,540 With an allowance recorded: Commercial and industrial — — $ — 31 1 Commercial tax exempt — — — — — Commercial real estate 7,115 7,544 548 7,230 314 Construction and land — — — 507 — Residential 4,284 4,284 565 5,505 143 Home equity 37 37 22 3 — Consumer and other — — — — — Subtotal 11,436 11,865 1,135 13,276 458 Total: Commercial and industrial 1,793 2,155 — 5,319 250 Commercial tax exempt — — — — — Commercial real estate 11,603 17,191 548 15,750 1,346 Construction and land 179 507 — 1,576 48 Residential 12,418 12,790 565 12,951 354 Home equity 37 37 22 3 — Consumer and other — — — — — Total $ 26,030 $ 32,680 $ 1,135 $ 35,599 $ 1,998 _____________________ (1) Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal. The following tables present the Company’s allowance for loan losses and loan portfolio at June 30, 2017 and December 31, 2016 by portfolio segment, disaggregated by method of impairment analysis. The Company had no loans acquired with deteriorated credit quality at June 30, 2017 or December 31, 2016 . June 30, 2017 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,771 $ — $ 956,142 $ 11,672 $ 957,913 $ 11,672 Commercial real estate 9,875 453 2,346,470 47,683 2,356,345 48,136 Construction and land 232 — 130,672 3,585 130,904 3,585 Residential 12,103 507 2,513,122 9,775 2,525,225 10,282 Home equity 36 21 108,513 908 108,549 929 Consumer — — 200,992 405 200,992 405 Total $ 24,017 $ 981 $ 6,255,911 $ 74,028 $ 6,279,928 $ 75,009 December 31, 2016 Individually Evaluated for Impairment Collectively Evaluated for Impairment Total Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses Recorded investment (loan balance) Allowance for loan losses (In thousands) Commercial and industrial $ 1,793 $ — $ 1,008,181 $ 12,751 $ 1,009,974 $ 12,751 Commercial real estate 11,603 548 2,290,641 49,864 2,302,244 50,412 Construction and land 179 — 104,660 3,039 104,839 3,039 Residential 12,418 565 2,367,443 9,884 2,379,861 10,449 Home equity 37 22 118,780 1,013 118,817 1,035 Consumer — — 198,619 391 198,619 391 Total $ 26,030 $ 1,135 $ 6,088,324 $ 76,942 $ 6,114,354 $ 78,077

Derivatives and Hedging Activ28

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The following table presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheets as of June 30, 2017 and December 31, 2016 : June 30, 2017 December 31, 2016 Asset derivatives Liability derivatives Asset derivatives Liability derivatives Balance sheet location Fair value (1) Balance sheet location Fair value (1) Balance sheet location Fair value (1) Balance sheet location Fair value (1) (In thousands) Derivatives designated as hedging instruments: Interest rate products Other assets $ — Other liabilities $ (736 ) Other assets $ — Other liabilities $ (1,040 ) Derivatives not designated as hedging instruments: Interest rate products Other assets 16,120 Other liabilities (16,294 ) Other assets 17,032 Other liabilities (16,560 ) Risk participation agreements Other assets 1 Other liabilities (141 ) Other assets 15 Other liabilities (6 ) Foreign exchange contracts Other assets 1 Other liabilities (1 ) Other assets — Other liabilities — Total $ 16,122 $ (17,172 ) $ 17,047 $ (17,606 ) _____________________ (1) For additional details, see Part I. Item 1. “Notes to Unaudited Consolidated Financial Statements-Note 5: Fair Value Measurements.”
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]	The following tables present the effect of the Company’s derivative financial instruments in the consolidated statements of operations for the three and six months ended June 30, 2017 and 2016 : Derivatives in cash flow hedging relationships Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (1) Location of gain or (loss) reclassified from accumulated OCI into income (effective portion) Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion) Three months ended June 30, Three months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products $ (425 ) $ (643 ) Interest expense $ (357 ) $ (453 ) Total $ (425 ) $ (643 ) $ (357 ) $ (453 ) _____________________ (1) There was an additional $2 thousand gain related to the ineffective portion for the three months ended as of June 30, 2017 and $3 thousand gain related to the ineffective portion for the three months ended as of June 30, 2016 . Derivatives in cash flow hedging relationships Amount of gain or (loss) recognized in OCI on derivatives (effective portion) (1) Location of gain or (loss) reclassified from accumulated OCI into income (effective portion) Amount of gain or (loss) reclassified from accumulated OCI into income (effective portion) Six months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products $ (358 ) $ (2,591 ) Interest expense $ (660 ) $ (914 ) Total $ (358 ) $ (2,591 ) $ (660 ) $ (914 ) ____________________ (1) There was an additional $2 thousand loss related to the ineffective portion for the six months ended as of June 30, 2017 and $45 thousand gain related to the ineffective portion for the six months ended as of June 30, 2016 .
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]	The following table presents the components of the Company’s accumulated other comprehensive income/ (loss) related to the derivatives for the three and six months ended June 30, 2017 and 2016 : Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Accumulated other comprehensive income/ (loss) on cash flow hedges, balance at beginning of period $ (389 ) $ (2,023 ) $ (605 ) $ (1,123 ) Net change in unrealized gain/ (loss) on cash flow hedges (40 ) (86 ) 176 (986 ) Accumulated other comprehensive income/ (loss) on cash flow hedges, balance at end of period $ (429 ) $ (2,109 ) $ (429 ) $ (2,109 )
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	The following table presents the effect of the Bank’s derivative financial instruments not designated as hedging instruments in the consolidated statement of operations for the three and six months ended June 30, 2017 and 2016 . Amount of gain or (loss), net, recognized in income on derivatives Derivatives not designated as hedging instruments Location of gain or (loss) recognized in income on derivatives Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016 (In thousands) Interest rate products Other income/ (expense) $ (324 ) $ (1,554 ) $ (646 ) $ (2,159 ) Risk participation agreements Other income/ (expense) 320 7 320 13 Total $ (4 ) $ (1,547 ) $ (326 ) $ (2,146 )

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	The following table presents the components of income tax expense for continuing operations, discontinued operations, noncontrolling interests and the Company: Six months ended June 30, 2017 2016 (In thousands) Income from continuing operations: Income before income taxes $ 55,005 $ 48,093 Income tax expense 16,516 15,064 Net income from continuing operations $ 38,489 $ 33,029 Effective tax rate, continuing operations 30.0 % 31.3 % Income from discontinued operations: Income before income taxes $ 4,606 $ 5,658 Income tax expense 1,911 2,348 Net income from discontinued operations $ 2,695 $ 3,310 Effective tax rate, discontinued operations 41.5 % 41.5 % Less: Income attributable to noncontrolling interests: Income before income taxes $ 2,116 $ 1,900 Income tax expense — — Net income attributable to noncontrolling interests $ 2,116 $ 1,900 Effective tax rate, noncontrolling interests — % — % Income attributable to the Company Income before income taxes $ 57,495 $ 51,851 Income tax expense 18,427 17,412 Net income attributable to the Company $ 39,068 $ 34,439 Effective tax rate attributable to the Company 32.0 % 33.6 %

Noncontrolling Interests (Table

Noncontrolling Interests (Tables)	6 Months Ended
	Jun. 30, 2017
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interest [Table Text Block]	The following table presents, by affiliate, the noncontrolling interests included as redeemable noncontrolling interests and noncontrolling interests in mezzanine and permanent equity, respectively, at the periods indicated: June 30, 2017 December 31, 2016 (In thousands) Anchor $ 10,991 $ 10,934 BOS 7,178 6,782 DGHM (1) 3,422 3,417 Total $ 21,591 $ 21,133 Redeemable noncontrolling interests $ 17,216 $ 16,972 Noncontrolling interests $ 4,375 $ 4,161 _____________________ (1) Only includes redeemable noncontrolling interests.
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block]	The following tables present a rollforward of the Company’s redeemable noncontrolling interests and noncontrolling interests for the periods indicated: Three months ended Six months ended June 30, 2017 June 30, 2017 Redeemable noncontrolling interests Noncontrolling interests Redeemable noncontrolling interests Noncontrolling interests (In thousands) Noncontrolling interests at beginning of period $ 17,232 $ 3,993 $ 16,972 $ 4,161 Net income attributable to noncontrolling interests 859 291 1,583 533 Distributions (842 ) (284 ) (1,545 ) (519 ) Purchases/ (sales) of ownership interests 66 — 132 — Amortization of equity compensation 102 250 204 506 Adjustments to fair value (201 ) 125 (130 ) (306 ) Noncontrolling interests at end of period $ 17,216 $ 4,375 $ 17,216 $ 4,375 Three months ended Six months ended June 30, 2016 June 30, 2016 Redeemable noncontrolling interests Noncontrolling interests Redeemable noncontrolling interests Noncontrolling interests (In thousands) Noncontrolling interests at beginning of period $ 16,938 $ 3,116 $ 18,088 $ 3,393 Net income attributable to noncontrolling interests 769 220 1,487 413 Distributions (788 ) (198 ) (1,404 ) (440 ) Purchases/ (sales) of ownership interests (908 ) (18 ) (766 ) (18 ) Amortization of equity compensation 76 132 187 264 Adjustments to fair value (244 ) 127 (1,749 ) (233 ) Noncontrolling interests at end of period $ 15,843 $ 3,379 $ 15,843 $ 3,379

Accumulated Other Comprehensi31

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	The following table presents a summary of the amounts reclassified from accumulated other comprehensive income/ (loss) for the three and six months ended June 30, 2017 and 2016 : Description of component of accumulated other comprehensive income/ (loss) Three months ended June 30, Six months ended June 30, Affected line item in Statement of Operations 2017 2016 2017 2016 (In thousands) (In thousands) Adjustment for realized gains/ (losses) on available-for-sale securities, net: Pre-tax $ 237 $ 245 $ 256 $ 246 Gain on sale of investments, net Tax expense/ (benefit) 96 88 104 88 Income tax expense Net $ 141 $ 157 $ 152 $ 158 Net income attributable to the Company Net realized gain/ (loss) on cash flow hedges: Hedges related to deposits: Pre-tax $ (357 ) $ (453 ) $ (660 ) $ (914 ) Interest expense on deposits Pre-tax 2 2 (1 ) 45 Other income Tax expense/ (benefit) (149 ) (185 ) (275 ) (357 ) Income tax expense Net $ (206 ) $ (266 ) $ (386 ) $ (512 ) Net income attributable to the Company Total reclassifications for the period, net of tax $ (65 ) $ (109 ) $ (234 ) $ (354 )

Restructuring (Tables)

Restructuring (Tables)	6 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table presents a summary of the restructuring activity for the three and six months ended June 30, 2017 and 2016 : Severance Charges Total (In thousands) Accrued charges at December 31, 2016 $ 1,977 $ 1,977 Costs paid (618 ) (618 ) Accrued charges at March 31, 2017 1,359 1,359 Costs paid (335 ) (335 ) Accrued charges at June 30, 2017 $ 1,024 $ 1,024 Accrued charges at December 31, 2015 $ 3,305 $ 3,305 Costs incurred 1,112 1,112 Costs paid (849 ) (849 ) Accrued charges at March 31, 2016 3,568 3,568 Costs incurred 905 905 Costs paid (1,214 ) (1,214 ) Accrued charges at June 30, 2016 $ 3,259 $ 3,259

Earnings Per Share Basic Earnin

Earnings Per Share Basic Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income from continuing operations		$ 23,493	$ 16,142	$ 38,489	$ 33,029
Net Income (Loss) Attributable to Noncontrolling Interest		1,150	989	2,116	1,900
Income (Loss) from Continuing Operations Attributable to Parent		22,343	15,153	36,373	31,129
Noncontrolling Interest, Change in Redemption Value	[1]	(292)	101	5	(479)
Preferred Stock Dividends and Other Adjustments		(869)	(869)	(1,738)	(1,738)
Other Preferred Stock Dividends and Adjustments		(577)	(970)	(1,743)	(1,259)
Net Income (Loss) from Continuing Ops Available to Common Stockholders, Basic		21,766	14,183	34,630	29,870
Net income from discontinued operations		1,063	1,245	2,695	3,310
Net income attributable to common shareholders for earnings per share calculation		$ 22,829	$ 15,428	$ 37,325	$ 33,180
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.27	$ 0.17	$ 0.42	$ 0.37
Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share		0.01	0.02	0.03	0.04
Earnings Per Share, Basic		$ 0.28	$ 0.19	$ 0.45	$ 0.41
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		82,298,493	81,236,809	82,125,795	81,269,154
[1]	See Part II. Item 8. “Financial Statements and Supplementary Data—Note 14: Noncontrolling Interests” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 for a description of the redemption values related to the redeemable noncontrolling interests. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 480, Distinguishing Liabilities from Equity (“ASC 480”), an increase in redemption value from period to period reduces income attributable to common shareholders. Decreases in redemption value from period to period increase income attributable to common shareholders, but only to the extent that the cumulative change in redemption value remains a cumulative increase since adoption of this standard in the first quarter of 2009.

Earnings Per Share Diluted Earn

Earnings Per Share Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) from Continuing Operations Available to Common Stockholders, Diluted		$ 21,766	$ 14,183	$ 34,630	$ 29,870
Net income from discontinued operations		1,063	1,245	2,695	3,310
Net Income (Loss) Available to Common Stockholders, Diluted		$ 22,829	$ 15,428	$ 37,325	$ 33,180
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.26	$ 0.17	$ 0.41	$ 0.36
Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share		0.01	0.01	0.03	0.04
Earnings Per Share, Diluted		0.27	0.18	0.44	0.40
Common Stock, Dividends, Per Share, Cash Paid		$ 0.11	$ 0.10	$ 0.22	$ 0.20
Common Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Basic Common Shares Outstanding		82,298,493	81,236,809	82,125,795	81,269,154
Incremental Common Shares Attributable to Share-based Payment Arrangements	[1]	1,338,939	1,058,425	1,394,605	1,019,488
Incremental Common Shares Attributable to Call Options and Warrants	[1]	1,104,248	1,224,705	1,137,909	1,102,415
Weighted Average Number Diluted Shares Outstanding Adjustment		2,443,187	2,283,130	2,532,514	2,121,903
Weighted Average Number of Shares Outstanding, Diluted	[1]	84,741,680	83,519,939	84,658,309	83,391,057
[1]	The diluted EPS computations for the three and six months ended June 30, 2017 and 2016 do not assume the conversion, exercise, or contingent issuance of the following shares for the following periods because the result would have been anti-dilutive for the periods indicated. As a result of the anti-dilution, the potential common shares excluded from the diluted EPS computation are as follows: Three months ended June 30, Six months ended June 30, 2017 2016 2017 2016Shares excluded due to exercise price exceeding the average market price of common shares during the period (total outstanding):(In thousands)Potential common shares from: Stock options54 315 87 243Total shares excluded due to exercise price exceeding the average market price of common shares during the period54 315 87 243

Earnings Per Share Securities E

Earnings Per Share Securities Excluded Due to Exercise Price Exceeding Average Price During Period (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Shares Excluded Due to Exercise Price Exceeding Average Price During Period [Line Items]
Shares Excluded Due to Exercise Price Exceeding Average Price During Period	54	315	87	243
Outstanding Stock Awards [Member]
Shares Excluded Due to Exercise Price Exceeding Average Price During Period [Line Items]
Shares Excluded Due to Exercise Price Exceeding Average Price During Period	54	315	87	243

Reportable Segments (Details)

Reportable Segments (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Interest Income (Expense), Net		$ 57,145	$ 49,169	$ 110,787	$ 99,048
Noninterest Income		38,018	36,795	74,524	74,817
Revenues		95,163	85,964	185,311	173,865
Provision/ (credit) for loan losses		(6,114)	(2,535)	(6,295)	(5,668)
Noninterest Expense		67,821	64,731	136,601	131,440
Income before income taxes		33,456	23,768	55,005	48,093
Income tax expense		9,963	7,626	16,516	15,064
Net income from continuing operations		23,493	16,142	38,489	33,029
Net income attributable to noncontrolling interests		1,150	989	2,116	1,900
Net income from discontinued operations		1,063	1,245	2,695	3,310
Net income attributable to the Company		23,406	16,398	39,068	34,439
Total assets		8,107,646	7,579,601	8,107,646	7,579,601	$ 7,970,474
Amortization of intangibles		1,426	1,586	2,852	3,172
Depreciation		1,980	1,698	3,980	3,374
Private Banking Segment [Member]
Segment Reporting Information [Line Items]
Interest Income (Expense), Net		57,783	49,713	112,039	100,133
Noninterest Income		2,634	2,227	4,462	5,605
Revenues		60,417	51,940	116,501	105,738
Provision/ (credit) for loan losses		(6,114)	(2,535)	(6,295)	(5,668)
Noninterest Expense		36,904	32,093	71,962	63,368
Income before income taxes		29,627	22,382	50,834	48,038
Income tax expense		9,209	7,038	15,478	15,412
Net income from continuing operations		20,418	15,344	35,356	32,626
Net income attributable to the Company		20,418	15,344	35,356	32,626
Total assets		7,951,911	7,417,465	7,951,911	7,417,465
Depreciation		1,343	1,125	2,714	2,271
Wealth Management and Trust Segment [Member]
Segment Reporting Information [Line Items]
Noninterest Income		11,274	11,300	22,195	22,356
Noninterest Expense	[1]	11,937	13,738	25,810	29,590
Income before income taxes		(663)	(2,438)	(3,615)	(7,234)
Income tax expense		(239)	(970)	(1,405)	(2,909)
Net income from continuing operations		(424)	(1,468)	(2,210)	(4,325)
Net income attributable to the Company		(424)	(1,468)	(2,210)	(4,325)
Total assets		74,842	86,397	74,842	86,397
Amortization of intangibles		727	745	1,454	1,490
Depreciation		341	269	678	500
Investment Managers Segment [Member]
Segment Reporting Information [Line Items]
Interest Income (Expense), Net		4	4	8	8
Noninterest Income		11,091	10,646	21,950	21,305
Revenues		11,095	10,650	21,958	21,313
Noninterest Expense		8,346	7,895	16,700	15,919
Income before income taxes		2,749	2,755	5,258	5,394
Income tax expense		894	898	1,738	1,777
Net income from continuing operations		1,855	1,857	3,520	3,617
Net income attributable to noncontrolling interests		512	469	974	946
Net income attributable to the Company		1,343	1,388	2,546	2,671
Total assets		91,915	93,975	91,915	93,975
Amortization of intangibles		651	651	1,301	1,301
Depreciation		61	74	127	147
Wealth Advisors Segment [Member]
Segment Reporting Information [Line Items]
Interest Income (Expense), Net		29	4	46	7
Noninterest Income		12,980	12,579	25,823	25,321
Revenues		13,009	12,583	25,869	25,328
Noninterest Expense		8,943	9,171	18,386	18,865
Income before income taxes		4,066	3,412	7,483	6,463
Income tax expense		1,511	1,266	2,798	2,414
Net income from continuing operations		2,555	2,146	4,685	4,049
Net income attributable to noncontrolling interests		638	520	1,142	954
Net income attributable to the Company		1,917	1,626	3,543	3,095
Total assets		75,247	76,370	75,247	76,370
Amortization of intangibles		48	190	97	381
Depreciation		235	220	461	435
Holding Company and Eliminations Segment [Member]
Segment Reporting Information [Line Items]
Interest Income (Expense), Net		(671)	(552)	(1,306)	(1,100)
Noninterest Income		39	43	94	230
Revenues		(632)	(509)	(1,212)	(870)
Noninterest Expense		1,691	1,834	3,743	3,698
Income before income taxes		(2,323)	(2,343)	(4,955)	(4,568)
Income tax expense		(1,412)	(606)	(2,093)	(1,630)
Net income from continuing operations		(911)	(1,737)	(2,862)	(2,938)
Net income from discontinued operations		1,063	1,245	2,695	3,310
Net income attributable to the Company		152	(492)	(167)	372
Total assets		(86,269)	(94,606)	(86,269)	(94,606)
Depreciation		$ 0	$ 10	$ 0	$ 21
[1]	Operating expense related to the Wealth Management and Trust segment includes no restructuring expense for the three and six months ended June 30, 2017, respectively, and $0.9 million and $2.0 million of restructuring expenses for the three months and six months ended June 30, 2016, respectively.

Reportable Segments Segments Te

Reportable Segments Segments Text Disclosure (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)segments	Jun. 30, 2016USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | segments			4
Restructuring | $	$ 0	$ 905	$ 0	$ 2,017

Investments Schedule of Availab

Investments Schedule of Available-for-sale and Held-to-Maturity Securities (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		$ 1,197,171	$ 1,283,161
Available-for-sale Securities, Gross Unrealized Gains		6,948	4,635
Available-for-sale Securities, Gross Unrealized Losses		(15,399)	(23,664)
Available-for-sale securities at fair value		1,188,720	1,264,132
Held-to-maturity Securities		99,024	93,079
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		75	1
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		(386)	(476)
Held-to-maturity Securities, Fair Value		98,713	92,604
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		35,214	40,704
Available-for-sale Securities, Gross Unrealized Gains		38	86
Available-for-sale Securities, Gross Unrealized Losses		(593)	(854)
Available-for-sale securities at fair value		34,659	39,936
Held-to-maturity Securities		14,975
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		(4)
Held-to-maturity Securities, Fair Value		14,971
US Government-sponsored Enterprises Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		305,318	337,865
Available-for-sale Securities, Gross Unrealized Gains		997	1,058
Available-for-sale Securities, Gross Unrealized Losses		(1,185)	(2,259)
Available-for-sale securities at fair value		305,130	336,664
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		294,616	296,271
Available-for-sale Securities, Gross Unrealized Gains		4,674	2,116
Available-for-sale Securities, Gross Unrealized Losses		(2,187)	(4,990)
Available-for-sale securities at fair value		297,103	293,397
Mortgage Backed Securities, Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	[1]	557,148	584,960
Available-for-sale Securities, Gross Unrealized Gains	[1]	785	928
Available-for-sale Securities, Gross Unrealized Losses	[1]	(11,429)	(15,561)
Available-for-sale securities at fair value	[1]	546,504	570,327
Held-to-maturity Securities	[1]	84,049	93,079
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	[1]	75	1
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	[1]	(382)	(476)
Held-to-maturity Securities, Fair Value	[1]	83,742	92,604
Other Aggregated Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		4,875	23,361
Available-for-sale Securities, Gross Unrealized Gains		454	447
Available-for-sale Securities, Gross Unrealized Losses		(5)	0
Available-for-sale securities at fair value		$ 5,324	$ 23,808
[1]	All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.

Investments Maturities of AFS S

Investments Maturities of AFS Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 47,251
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	334,792
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	334,083
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	481,045
Investment securities available for sale at amortized cost	1,197,171	$ 1,283,161
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	47,738
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	336,184
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	327,470
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	477,328
Available-for-sale Securities	$ 1,188,720	$ 1,264,132

Investments Maturities of HTM S

Investments Maturities of HTM Securities (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount		$ 14,975
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount		0
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount		14,327
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount		69,722
Held-to-maturity Securities		99,024	$ 93,079
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value		14,971
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value		0
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value		14,300
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value		69,442
Held-to-maturity Securities, Fair Value		98,713	92,604
Mortgage Backed Securities, Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	[1]	84,049	93,079
Held-to-maturity Securities, Fair Value	[1]	$ 83,742	$ 92,604
[1]	All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.

Investments Realized gains and

Investments Realized gains and losses from sales of AFS Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Gain (Loss) on Investments [Line Items]
Proceeds from Sale of Available-for-sale Securities	$ 70,314	$ 13,840	$ 103,031	$ 29,132
Available-for-sale Securities, Gross Realized Gains	255	245	274	247
Available-for-sale Securities, Gross Realized Losses	$ (18)	$ 0	$ (18)	$ (1)

Investments Investment Securiti

Investments Investment Securities in Unrealized Loss Position (Details) $ in Thousands		Jun. 30, 2017USD ($)securities	Dec. 31, 2016USD ($)securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 653,877	$ 818,909
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(13,795)	(22,042)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		47,678	44,907
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		(1,604)	(1,622)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		701,555	863,816
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ 15,399	$ 23,664
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		171	230
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 81,333	$ 87,483
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(386)	(476)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value		81,333	87,483
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (386)	$ (476)
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		17	15
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 24,367	$ 19,094
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(587)	(838)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		292	643
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		(6)	(16)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		24,659	19,737
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ 593	$ 854
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		4	4
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 14,971
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(4)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value		14,971
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (4)
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		4
US Government-sponsored Enterprises Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 97,093	$ 125,412
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(1,185)	(2,259)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		97,093	125,412
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ 1,185	$ 2,259
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		15	18
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 74,816	$ 182,395
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(2,144)	(4,957)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		2,020	2,720
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		(43)	(33)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		76,836	185,115
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ 2,187	$ 4,990
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		47	109
Mortgage Backed Securities, Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	[1]	$ 457,585	$ 492,008
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	[1]	(9,874)	(13,988)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	[1]	45,366	41,544
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	[1]	(1,555)	(1,573)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	[1]	502,951	533,552
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	[1]	$ 11,429	$ 15,561
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities	[1]	103	99
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	[1]	$ 66,362	$ 87,483
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	[1]	(382)	(476)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	[1]	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	[1]	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	[1]	66,362	87,483
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	[1]	$ (382)	$ (476)
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities	[1]	13	15
Other Aggregated Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 16	$ 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses		(5)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		16	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses		$ 5	$ 0
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities		2	0
[1]	All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.

Investments Other Investment Di

Investments Other Investment Disclosures (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Investments, Other Disclosures [Abstract]
Cost Method Investments, Additional Information	0	0
Amortization Method Qualified Affordable Housing Project Investments	$ 34.1	$ 34.2

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Recurring Basis (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		$ 1,188,720		$ 1,188,720		$ 1,264,132
US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		34,659		34,659		39,936
US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		305,130		305,130		336,664
Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		297,103		297,103		293,397
Mortgage Backed Securities, Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	546,504		546,504		570,327
Other Aggregated Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,324		5,324		23,808
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,188,720		1,188,720		1,264,132
Alternative Investment, Fair Value Disclosure		6,624		6,624		6,110
Financial and Nonfinancial Liabilities, Fair Value Disclosure		6,624		6,624		6,110
Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		736		736		1,040
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		16,120		16,120		17,032
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		16,294		16,294		16,560
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		1		1
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		1		1
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		1		1		15
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		141		141		6
Fair Value, Measurements, Recurring [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		34,659		34,659		39,936
Fair Value, Measurements, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		305,130		305,130		336,664
Fair Value, Measurements, Recurring [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		297,103		297,103		293,397
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities, Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		546,504		546,504		570,327
Fair Value, Measurements, Recurring [Member] | Other Aggregated Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,324		5,324		23,808
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		39,690		39,690		63,101
Alternative Investment, Fair Value Disclosure		6,624		6,624		6,110
Financial and Nonfinancial Liabilities, Fair Value Disclosure		6,624		6,624		6,110
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		34,366		34,366		39,293
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities, Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Aggregated Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,324		5,324		23,808
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,149,030		1,149,030		1,201,031
Alternative Investment, Fair Value Disclosure		0		0		0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		736		736		1,040
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		16,120		16,120		17,032
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		16,294		16,294		16,560
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		1		1
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		1		1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		1		1		15
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		141		141		6
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		293		293		643
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		305,130		305,130		336,664
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		297,103		297,103		293,397
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities, Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		546,504		546,504		570,327
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Aggregated Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Alternative Investment, Fair Value Disclosure		0		0		0
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net		0	$ 0	0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net		0	$ 0	0	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		0		0		0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities, Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Aggregated Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		$ 0		$ 0		$ 0
[1]	All mortgage-backed securities are guaranteed by U.S. government agencies or government-sponsored entities.

Fair Value Measurements Fair 45

Fair Value Measurements Fair Value Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2017	[1]	Jun. 30, 2016	[2]	Jun. 30, 2017	[1]	Jun. 30, 2016	[2]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,040		$ 7,806		$ 1,040		$ 7,806
Loans Receivable, Fair Value Adjustment	(221)		0		(219)		(2,064)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	0		0		0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	0		0		0		0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,040		$ 7,806		$ 1,040		$ 7,806
[1]	Collateral-dependent impaired loans held at June 30, 2017 that had write-downs in fair value or whose specific reserve changed during the first six months of 2017.
[2]	Collateral-dependent impaired loans held at June 30, 2016 that had write-downs in fair value or whose specific reserve changed during the first six months of 2016.

Fair Value Measurements Quantit

Fair Value Measurements Quantitiative Information about Level 3 Non-Recurring Assets (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017		Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,040	[1]	$ 7,806	[2]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,040	[1]	$ 7,806	[2]
Loans Receivable [Member] | Weighted Average [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	6.00%		7.00%
Fair Value Inputs, Comparability Adjustments	16.00%		37.00%
Loans Receivable [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	0.00%		6.00%
Fair Value Inputs, Comparability Adjustments	0.00%		20.00%
Loans Receivable [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair Value Inputs, Discount Rate	7.00%		13.00%
Fair Value Inputs, Comparability Adjustments	20.00%		40.00%
[1]	Collateral-dependent impaired loans held at June 30, 2017 that had write-downs in fair value or whose specific reserve changed during the first six months of 2017.
[2]	Collateral-dependent impaired loans held at June 30, 2016 that had write-downs in fair value or whose specific reserve changed during the first six months of 2016.

Fair Value Measurements Not Mea

Fair Value Measurements Not Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2017		Dec. 31, 2016	Jun. 30, 2016	[2]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	$ 98,713		$ 92,604
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	1,040	[1]		$ 7,806
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	0	[1]		0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	0	[1]		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	1,040	[1]		$ 7,806
Portion at Fair Value Measurement [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	97,032		106,557
Held-to-maturity Securities, Fair Value	98,713		92,604
Loans Held-for-sale, Fair Value Disclosure	2,926		3,428
Loans Receivable, Fair Value Disclosure	6,237,522		6,021,611
Other Assets, Fair Value Disclosure	78,887		77,956
Deposits, Fair Value Disclosure	6,381,071		6,084,765
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure	29,232		59,624
Federal Funds Purchased, Fair Value Disclosure	40,000		80,000
Federal Home Loan Bank Borrowings, Fair Value Disclosure	620,176		734,941
Subordinated Debt Obligations, Fair Value Disclosure	96,363		96,363
Other Liabilities, Fair Value Disclosure	1,889		1,942
Portion at Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	97,032		106,557
Held-to-maturity Securities, Fair Value	14,971		0
Loans Held-for-sale, Fair Value Disclosure	0		0
Loans Receivable, Fair Value Disclosure	0		0
Other Assets, Fair Value Disclosure	0		0
Deposits, Fair Value Disclosure	0		0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure	0		0
Federal Funds Purchased, Fair Value Disclosure	0		0
Federal Home Loan Bank Borrowings, Fair Value Disclosure	0		0
Subordinated Debt Obligations, Fair Value Disclosure	0		0
Other Liabilities, Fair Value Disclosure	0		0
Portion at Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0		0
Held-to-maturity Securities, Fair Value	83,742		92,604
Loans Held-for-sale, Fair Value Disclosure	2,926		3,428
Loans Receivable, Fair Value Disclosure	0		0
Other Assets, Fair Value Disclosure	78,887		77,956
Deposits, Fair Value Disclosure	6,381,071		6,084,765
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure	29,232		59,624
Federal Funds Purchased, Fair Value Disclosure	40,000		80,000
Federal Home Loan Bank Borrowings, Fair Value Disclosure	620,176		734,941
Subordinated Debt Obligations, Fair Value Disclosure	0		0
Other Liabilities, Fair Value Disclosure	1,889		1,942
Portion at Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0		0
Held-to-maturity Securities, Fair Value	0		0
Loans Held-for-sale, Fair Value Disclosure	0		0
Loans Receivable, Fair Value Disclosure	6,237,522		6,021,611
Other Assets, Fair Value Disclosure	0		0
Deposits, Fair Value Disclosure	0		0
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure	0		0
Federal Funds Purchased, Fair Value Disclosure	0		0
Federal Home Loan Bank Borrowings, Fair Value Disclosure	0		0
Subordinated Debt Obligations, Fair Value Disclosure	96,363		96,363
Other Liabilities, Fair Value Disclosure	0		0
Reported Value Measurement [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	97,032		106,557
Held-to-maturity Securities, Fair Value	99,024		93,079
Loans Held-for-sale, Fair Value Disclosure	2,870		3,464
Loans Receivable, Fair Value Disclosure	6,204,919		6,036,277
Other Assets, Fair Value Disclosure	78,887		77,956
Deposits, Fair Value Disclosure	6,381,339		6,085,146
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure	29,232		59,624
Federal Funds Purchased, Fair Value Disclosure	40,000		80,000
Federal Home Loan Bank Borrowings, Fair Value Disclosure	618,989		734,205
Subordinated Debt Obligations, Fair Value Disclosure	106,363		106,363
Other Liabilities, Fair Value Disclosure	$ 1,889		$ 1,942
[1]	Collateral-dependent impaired loans held at June 30, 2017 that had write-downs in fair value or whose specific reserve changed during the first six months of 2017.
[2]	Collateral-dependent impaired loans held at June 30, 2016 that had write-downs in fair value or whose specific reserve changed during the first six months of 2016.

Loan Portfolio and Credit Qua48

Loan Portfolio and Credit Quality Loans by Portfolio Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 6,279,928	$ 6,114,354
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	541,756	611,370
Commercial Tax Exempt [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	416,157	398,604
Commercial and Industrial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	957,913	1,009,974
Commercial real estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,356,345	2,302,244
Construction and land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	130,904	104,839
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,525,225	2,379,861
Home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	108,549	118,817
Consumer and other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 200,992	$ 198,619

Loan Portfolio and Credit Qua49

Loan Portfolio and Credit Quality Nonaccrual Loans by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 16,176	$ 17,315
Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	697	572
Commercial Tax Exempt [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Commercial and Industrial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	697	572
Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,004	4,583
Construction and land [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	232	179
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	11,173	10,908
Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,070	1,072
Consumer and other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 0	$ 1

Loan Portfolio and Credit Qua50

Loan Portfolio and Credit Quality Loans by Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	$ 3,194	$ 15,137
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	16,176	17,315
Financing Receivable, Recorded Investment, Current	6,260,558	6,081,902
Total loans	6,279,928	6,114,354
Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	5,731	5,126
Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	429	2,201
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,502	13,523
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,692	1,614
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	10,016	9,988
Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	665	1,619
Financing Receivable, Recorded Investment, Nonaccrual Status	697	572
Financing Receivable, Recorded Investment, Current	540,394	609,179
Total loans	541,756	611,370
Commercial and industrial [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	445	537
Commercial and industrial [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	78	0
Commercial and industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	665	541
Commercial and industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	1,078
Commercial and industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	174	35
Commercial Tax Exempt [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Current	416,157	398,604
Total loans	416,157	398,604
Commercial Tax Exempt [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Commercial Tax Exempt [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Commercial Tax Exempt [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Commercial Tax Exempt [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Commercial Tax Exempt [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	182	3,096
Financing Receivable, Recorded Investment, Nonaccrual Status	3,004	4,583
Financing Receivable, Recorded Investment, Current	2,353,159	2,294,565
Total loans	2,356,345	2,302,244
Commercial real estate [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	970	2,311
Commercial real estate [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	101	835
Commercial real estate [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	3,096
Commercial real estate [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	182	0
Commercial real estate [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,933	1,437
Construction and land [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	232	179
Financing Receivable, Recorded Investment, Current	130,672	104,660
Total loans	130,904	104,839
Construction and land [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	65	129
Construction and land [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	17	12
Construction and land [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Construction and land [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	0
Construction and land [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	150	38
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,140	4,182
Financing Receivable, Recorded Investment, Nonaccrual Status	11,173	10,908
Financing Receivable, Recorded Investment, Current	2,512,912	2,364,771
Total loans	2,525,225	2,379,861
Residential [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	4,251	2,148
Residential [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	233	1,274
Residential [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	0	3,646
Residential [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	1,140	536
Residential [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	6,689	7,486
Home equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	429	245
Financing Receivable, Recorded Investment, Nonaccrual Status	1,070	1,072
Financing Receivable, Recorded Investment, Current	107,050	117,500
Total loans	108,549	118,817
Home equity [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Home equity [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	80
Home equity [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	90	245
Home equity [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	339	0
Home equity [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,070	992
Consumer and other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	778	5,995
Financing Receivable, Recorded Investment, Nonaccrual Status	0	1
Financing Receivable, Recorded Investment, Current	200,214	192,623
Total loans	200,992	198,619
Consumer and other [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	1
Consumer and other [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Consumer and other [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	747	5,995
Consumer and other [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Past Due	31	0
Consumer and other [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 0	$ 0

Loan Portfolio and Credit Qua51

Loan Portfolio and Credit Quality Loans by Grade or Nonaccrual Status (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 6,279,928	$ 6,114,354
Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,150,390	5,995,833
Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	62,264	37,535
Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	51,098	63,671
Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16,176	17,315
Commercial and industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	541,756	611,370
Commercial and industrial [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	522,349	591,388
Commercial and industrial [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,135	10,133
Commercial and industrial [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,575	9,277
Commercial and industrial [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	697	572
Commercial Tax Exempt [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	416,157	398,604
Commercial Tax Exempt [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	410,535	388,544
Commercial Tax Exempt [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,622	10,060
Commercial Tax Exempt [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial Tax Exempt [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,356,345	2,302,244
Commercial real estate [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,273,184	2,230,732
Commercial real estate [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	40,177	17,233
Commercial real estate [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	39,980	49,696
Commercial real estate [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,004	4,583
Construction and land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	130,904	104,839
Construction and land [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	123,420	101,254
Construction and land [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,330	109
Construction and land [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,922	3,297
Construction and land [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	232	179
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,525,225	2,379,861
Residential [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,512,682	2,367,554
Residential [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Residential [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,370	1,399
Residential [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,173	10,908
Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	108,549	118,817
Home equity [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	107,479	117,745
Home equity [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Home equity [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Home equity [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,070	1,072
Consumer and other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	200,992	198,619
Consumer and other [Member] | Pass [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	200,741	198,616
Consumer and other [Member] | Special Mention [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Consumer and other [Member] | Substandard [Member] | Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	251	2
Consumer and other [Member] | Substandard [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	$ 1

Loan Portfolio and Credit Qua52

Loan Portfolio and Credit Quality Impaired Loans With and Without Related Allowance (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	$ 14,482	$ 24,889	$ 14,482	$ 24,889	$ 14,594
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	9,535	12,952	9,535	12,952	11,436
Impaired Financing Receivable, Recorded Investment	[1]	24,017	37,841	24,017	37,841	26,030
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		19,345	34,516	19,345	34,516	20,815
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		9,964	13,381	9,964	13,381	11,865
Impaired Financing Receivable, Unpaid Principal Balance		29,309	47,897	29,309	47,897	32,680
Impaired Financing Receivable, Related Allowance		981	1,101	981	1,101	1,135
Impaired Financing Receivable, Related Allowance		981	1,101	981	1,101	1,135
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		15,860	25,364	16,525	24,057	22,323
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		9,661	12,940	10,391	14,226	13,276
Impaired Financing Receivable, Average Recorded Investment		25,521	38,304	26,916	38,283	35,599
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		894	620	1,254	727	1,540
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		119	114	233	238	458
Impaired Financing Receivable, Interest Income, Cash Basis Method		1,013	734	1,487	965	1,998
Commercial and industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	1,771	8,595	1,771	8,595	1,793
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	0	37	0	37	0
Impaired Financing Receivable, Recorded Investment	[1]	1,771	8,632	1,771	8,632	1,793
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		2,377	10,622	2,377	10,622	2,155
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	37	0	37	0
Impaired Financing Receivable, Unpaid Principal Balance		2,377	10,659	2,377	10,659	2,155
Impaired Financing Receivable, Related Allowance		0	22	0	22	0
Impaired Financing Receivable, Related Allowance		0	22	0	22	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,667	5,668	1,703	4,107	5,288
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	44	0	31	31
Impaired Financing Receivable, Average Recorded Investment		1,667	5,712	1,703	4,138	5,319
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		12	59	25	71	249
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	0	1	1
Impaired Financing Receivable, Interest Income, Cash Basis Method		12	59	25	72	250
Commercial Tax Exempt [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		1,084	0	1,859	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment		1,084	0	1,859	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		80	0	80	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method		80	0	80	0	0
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	2,879	7,780	2,879	7,780	4,488
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	6,996	7,233	6,996	7,233	7,115
Impaired Financing Receivable, Recorded Investment	[1]	9,875	15,013	9,875	15,013	11,603
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		6,429	14,088	6,429	14,088	9,647
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		7,425	7,662	7,425	7,662	7,544
Impaired Financing Receivable, Unpaid Principal Balance		13,854	21,750	13,854	21,750	17,191
Impaired Financing Receivable, Related Allowance		453	640	453	640	548
Impaired Financing Receivable, Related Allowance		453	640	453	640	548
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		3,358	9,794	3,824	10,764	8,520
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		7,011	7,266	7,042	7,294	7,230
Impaired Financing Receivable, Average Recorded Investment		10,369	17,060	10,866	18,058	15,750
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		724	504	970	542	1,032
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		96	78	171	158	314
Impaired Financing Receivable, Interest Income, Cash Basis Method		820	582	1,141	700	1,346
Construction and land [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	232	861	232	861	179
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, Recorded Investment	[1]	232	861	232	861	179
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		568	1,793	568	1,793	507
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, Unpaid Principal Balance		568	1,793	568	1,793	507
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		190	2,337	181	1,797	1,069
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0	943	507
Impaired Financing Receivable, Average Recorded Investment		190	2,337	181	2,740	1,576
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	48
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method		0	0	0	0	48
Residential [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	9,600	7,653	9,600	7,653	8,134
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	2,503	5,682	2,503	5,682	4,284
Impaired Financing Receivable, Recorded Investment	[1]	12,103	13,335	12,103	13,335	12,418
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		9,971	8,013	9,971	8,013	8,506
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		2,503	5,682	2,503	5,682	4,284
Impaired Financing Receivable, Unpaid Principal Balance		12,474	13,695	12,474	13,695	12,790
Impaired Financing Receivable, Related Allowance		507	439	507	439	565
Impaired Financing Receivable, Related Allowance		507	439	507	439	565
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		9,561	7,565	8,958	7,389	7,446
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		2,613	5,630	3,312	5,958	5,505
Impaired Financing Receivable, Average Recorded Investment		12,174	13,195	12,270	13,347	12,951
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		78	57	179	114	211
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		23	36	62	79	143
Impaired Financing Receivable, Interest Income, Cash Basis Method		101	93	241	193	354
Home equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	36	0	36	0	37
Impaired Financing Receivable, Recorded Investment	[1]	36	0	36	0	37
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		36	0	36	0	37
Impaired Financing Receivable, Unpaid Principal Balance		36	0	36	0	37
Impaired Financing Receivable, Related Allowance		21	0	21	0	22
Impaired Financing Receivable, Related Allowance		21	0	21	0	22
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		37	0	37	0	3
Impaired Financing Receivable, Average Recorded Investment		37	0	37	0	3
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method		0	0	0	0	0
Consumer and other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, Recorded Investment	[1]	0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, Unpaid Principal Balance		0	0	0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, Related Allowance		0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		0	0	0	0	0
Impaired Financing Receivable, Average Recorded Investment		0	0	0	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method		0	0	0	0	0
Impaired Financing Receivable, Interest Income, Cash Basis Method		$ 0	$ 0	$ 0	$ 0	$ 0
[1]	Recorded investment represents the client loan balance net of historical charge-offs and historical nonaccrual interest paid, which was applied to principal.

Loan Portfolio and Credit Qua53

Loan Portfolio and Credit Quality TDR Loans Restructured or Defaulted in Period (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017USD ($)Loans	Jun. 30, 2016USD ($)Loans	Jun. 30, 2017USD ($)Loans	Jun. 30, 2016USD ($)Loans		Dec. 31, 2016USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		$ 16,600		$ 16,600			$ 18,100
Financing Receivable, Modifications, Number of Contracts | Loans		0	4	0	6
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 8,600		$ 8,920
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 8,601		$ 8,746
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans		0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Accruing Troubled Debt Restructured Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment		$ 11,900		$ 11,900			$ 12,400
Commercial and industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			2		3
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 7,209		$ 7,384
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 7,209		$ 7,209
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Commercial and industrial [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			2		2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 7,209		$ 7,209
Commercial and industrial [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial and industrial [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial and industrial [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		1	[1]
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0	[1]
Commercial Tax Exempt [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Commercial Tax Exempt [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial Tax Exempt [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial Tax Exempt [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial Tax Exempt [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			1		1
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 1,276		$ 1,276
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 1,276		$ 1,276
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Commercial real estate [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial real estate [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial real estate [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Commercial real estate [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans	[1]		1		1
Financing Receivable, Modifications, Post-Modification Recorded Investment	[1]		$ 1,276		$ 1,276
Construction and land [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Construction and land [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Construction and land [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Construction and land [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Construction and land [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			1		2
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 115		$ 260
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 116		$ 261
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Residential [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Residential [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			1		2
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 116		$ 261
Residential [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Residential [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Home equity [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Home equity [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Home equity [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Home equity [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Home equity [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Consumer and other [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0		$ 0
Consumer and other [Member] | Extension of Term [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Consumer and other [Member] | Temporary Rate Reduction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Consumer and other [Member] | Payment Deferral [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
Consumer and other [Member] | Combination of Concessions [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Loans			0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0		$ 0
[1]	Combination of concessions includes loans that have had more than one modification, including extension of term, temporary reduction of interest rate, and/or payment deferral.

Loan Portfolio and Credit Qua54

Loan Portfolio and Credit Quality Loan footnote text disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Deferred Income	$ 6,600	$ 5,900
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Financing Receivable, Modifications, Recorded Investment	16,600	18,100
Accruing Troubled Debt Restructured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 11,900	$ 12,400

Allowance for Loan Losses Allow

Allowance for Loan Losses Allowance Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	$ 78,031	$ 76,427	$ 78,077	$ 78,500
Financing Receivable, Allowance for Credit Losses, Charge-offs	(463)	(19)	(521)	(3,035)
Financing Receivable, Allowance for Credit Losses, Recoveries	3,555	1,880	3,748	5,956
Provision/ (credit) for loan losses	(6,114)	(2,535)	(6,295)	(5,668)
Loans and Leases Receivable, Allowance at End of Period	75,009	75,753	75,009	75,753
Commercial and Industrial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	12,291	14,343	12,751	15,814
Financing Receivable, Allowance for Credit Losses, Charge-offs	(218)	0	(218)	(2,108)
Financing Receivable, Allowance for Credit Losses, Recoveries	67	82	154	1,376
Provision/ (credit) for loan losses	(468)	(1,179)	(1,015)	(1,836)
Loans and Leases Receivable, Allowance at End of Period	11,672	13,246	11,672	13,246
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	51,164	44,519	50,412	44,215
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	3,479	1,791	3,529	3,942
Provision/ (credit) for loan losses	(6,507)	(803)	(5,805)	(2,650)
Loans and Leases Receivable, Allowance at End of Period	48,136	45,507	48,136	45,507
Construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	3,197	5,551	3,039	6,322
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0	0	(400)
Financing Receivable, Allowance for Credit Losses, Recoveries	0	0	0	627
Provision/ (credit) for loan losses	388	(811)	546	(1,809)
Loans and Leases Receivable, Allowance at End of Period	3,585	4,740	3,585	4,740
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	10,090	10,634	10,449	10,544
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0	(58)	(501)
Financing Receivable, Allowance for Credit Losses, Recoveries	0	4	47	4
Provision/ (credit) for loan losses	192	114	(156)	705
Loans and Leases Receivable, Allowance at End of Period	10,282	10,752	10,282	10,752
Home equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	987	1,079	1,035	1,085
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	0	0	0	0
Provision/ (credit) for loan losses	(58)	60	(106)	54
Loans and Leases Receivable, Allowance at End of Period	929	1,139	929	1,139
Consumer and other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Allowance at Beginning of Period	302	301	391	520
Financing Receivable, Allowance for Credit Losses, Charge-offs	(245)	(19)	(245)	(26)
Financing Receivable, Allowance for Credit Losses, Recoveries	9	3	18	7
Provision/ (credit) for loan losses	339	84	241	(132)
Loans and Leases Receivable, Allowance at End of Period	$ 405	$ 369	$ 405	$ 369

Allowance for Loan Losses All56

Allowance for Loan Losses Allowance by impairment analysis method (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	$ 981		$ 1,135
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	74,028		76,942
Loans and Leases Receivable, Allowance	75,009	$ 78,031	78,077	$ 75,753	$ 76,427	$ 78,500
Financing Receivable, Individually Evaluated for Impairment	24,017		26,030
Financing Receivable, Collectively Evaluated for Impairment	6,255,911		6,088,324
Total loans	6,279,928		6,114,354
Commercial and Industrial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	11,672		12,751
Loans and Leases Receivable, Allowance	11,672	12,291	12,751	13,246	14,343	15,814
Financing Receivable, Individually Evaluated for Impairment	1,771		1,793
Financing Receivable, Collectively Evaluated for Impairment	956,142		1,008,181
Total loans	957,913		1,009,974
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	453		548
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	47,683		49,864
Loans and Leases Receivable, Allowance	48,136	51,164	50,412	45,507	44,519	44,215
Financing Receivable, Individually Evaluated for Impairment	9,875		11,603
Financing Receivable, Collectively Evaluated for Impairment	2,346,470		2,290,641
Total loans	2,356,345		2,302,244
Construction and land [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	3,585		3,039
Loans and Leases Receivable, Allowance	3,585	3,197	3,039	4,740	5,551	6,322
Financing Receivable, Individually Evaluated for Impairment	232		179
Financing Receivable, Collectively Evaluated for Impairment	130,672		104,660
Total loans	130,904		104,839
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	507		565
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	9,775		9,884
Loans and Leases Receivable, Allowance	10,282	10,090	10,449	10,752	10,634	10,544
Financing Receivable, Individually Evaluated for Impairment	12,103		12,418
Financing Receivable, Collectively Evaluated for Impairment	2,513,122		2,367,443
Total loans	2,525,225		2,379,861
Home equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	21		22
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	908		1,013
Loans and Leases Receivable, Allowance	929	987	1,035	1,139	1,079	1,085
Financing Receivable, Individually Evaluated for Impairment	36		37
Financing Receivable, Collectively Evaluated for Impairment	108,513		118,780
Total loans	108,549		118,817
Consumer and other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	405		391
Loans and Leases Receivable, Allowance	405	$ 302	391	$ 369	$ 301	$ 520
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Collectively Evaluated for Impairment	200,992		198,619
Total loans	$ 200,992		$ 198,619

Allowance for Loan Losses All57

Allowance for Loan Losses Allowance for Loan Losses Text Disclosures (Details) - USD ($)	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 6,279,928,000		$ 6,114,354,000
Loans and Leases Receivable, Allowance	75,009,000	$ 78,031,000	78,077,000	$ 75,753,000	$ 76,427,000	$ 78,500,000
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans and Leases Receivable, Net of Deferred Income	$ 0		$ 0

Derivatives and Hedging Activ58

Derivatives and Hedging Activities Derivatives Fair Value and Balance Sheet Classification (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	$ 16,122	$ 17,047
Other Assets [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	0	0
Other Assets [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	16,120	17,032
Other Assets [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	1	15
Other Assets [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	1	0
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	[1]	(17,172)	(17,606)
Other Liabilities [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	[1]	(736)	(1,040)
Other Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	[1]	(16,294)	(16,560)
Other Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	[1]	(141)	(6)
Other Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	[1]	$ (1)	$ 0
[1]	For additional details, see Part I. Item 1. “Notes to Unaudited Consolidated Financial Statements-Note 5: Fair Value Measurements.”

Derivatives and Hedging Activ59

Derivatives and Hedging Activities Effect of Derivative Instruments on Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2017		Jun. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (425)	[1]	$ (643)	[1]	$ (358)	[2]	$ (2,591)	[2]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(357)		(453)		(660)		(914)
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	2		3		(2)		45
Interest Expense [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(357)		(453)		(660)		(914)
Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (425)	[1]	$ (643)	[1]	$ (358)	[2]	$ (2,591)	[2]
[1]	There was an additional $2 thousand gain related to the ineffective portion for the three months ended as of June 30, 2017 and $3 thousand gain related to the ineffective portion for the three months ended as of June 30, 2016.
[2]	There was an additional $2 thousand loss related to the ineffective portion for the six months ended as of June 30, 2017 and $45 thousand gain related to the ineffective portion for the six months ended as of June 30, 2016.

Derivatives and Hedging Activ60

Derivatives and Hedging Activities Accumulated Other Comprehensive Income Related to Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Accumulated other comprehensive income on cash flow hedges, balance at beginning of period	$ (389)	$ (2,023)	$ (605)	$ (1,123)
Net change in unrealized gain/ (loss) on cash flow hedges	(40)	(86)	176	(986)
Accumulated other comprehensive income on cash flow hedges, balance at end of period	$ (429)	$ (2,109)	$ (429)	$ (2,109)

Derivatives and Hedging Activ61

Derivatives and Hedging Activities Derivatives collateral with counterparties (Details) - Interest Rate Swap [Member] - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Collateral, Obligation to Return Cash	$ 4.5	$ 3.4
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Collateral, Right to Reclaim Securities	$ 8	$ 1.9

Derivatives and Hedging Activ62

Derivatives and Hedging Activities Cash Flow Hedges Text Description (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017USD ($)contracts	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)contracts	Jun. 30, 2016USD ($)
Derivative [Line Items]
Objectives for Using Derivative Instruments			The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements.
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 0.7		$ 0.7
Private Banking Segment [Member]
Derivative [Line Items]
Number of Interest Rate Derivatives Held | contracts	7		7
Interest Rate Swap [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing	$ 0	$ 0	$ 0	$ 0
Interest Rate Swap [Member] | Bank $40m LIBOR Swap 2017 effective 3/22/17 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Mar. 22, 2017
Derivative Asset, Notional Amount	$ 40		$ 40
Derivative, Term of Contract			1 year 9 months
Derivative, Fixed Interest Rate	1.55%		1.55%
Objectives for Using Derivative Instruments			These interest rate swaps will effectively fix the Bank’s interest payments on $100 million in interest-related cash outflows attributable to changes in the LIBOR component of FHLB borrowing liabilities
Interest Rate Swap [Member] | Bank $40m LIBOR Swap 2017 effective 3/22/17 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.61%		1.61%
Interest Rate Swap [Member] | Bank $60m LIBOR Swap 2017 effective 3/22/17 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Mar. 22, 2017
Derivative Asset, Notional Amount	$ 60		$ 60
Derivative, Term of Contract			2 years 3 months
Derivative, Fixed Interest Rate	1.65%		1.65%
Objectives for Using Derivative Instruments			These interest rate swaps will effectively fix the Bank’s interest payments on $100 million in interest-related cash outflows attributable to changes in the LIBOR component of FHLB borrowing liabilities
Interest Rate Swap [Member] | Bank $60m LIBOR Swap 2017 effective 3/22/17 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.61%		1.61%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 8/1/13 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Aug. 1, 2013
Derivative Asset, Notional Amount	$ 25		$ 25
Objectives for Using Derivative Instruments			The interest rate swaps will effectively fix the Bank’s interest payments on $150 million of its LIBOR-indexed deposit liabilities
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 8/1/13 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Term of Contract			3 years
Derivative, Fixed Interest Rate	1.17%		1.17%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 8/1/13 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Term of Contract			6 years
Derivative, Fixed Interest Rate	2.32%		2.32%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 8/1/13 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.85%		1.85%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 3/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Mar. 1, 2014
Derivative Asset, Notional Amount	$ 25		$ 25
Objectives for Using Derivative Instruments			The interest rate swaps will effectively fix the Bank’s interest payments on $150 million of its LIBOR-indexed deposit liabilities
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 3/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Term of Contract			3 years
Derivative, Fixed Interest Rate	1.17%		1.17%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 3/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Term of Contract			6 years
Derivative, Fixed Interest Rate	2.32%		2.32%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 3/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.85%		1.85%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap 2013 effective 6/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Jun. 1, 2014
Derivative Asset, Notional Amount	$ 25		$ 25
Objectives for Using Derivative Instruments			The interest rate swaps will effectively fix the Bank’s interest payments on $150 million of its LIBOR-indexed deposit liabilities
Interest Rate Swap [Member] | Bank $25m LIBOR Swap 2013 effective 6/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Term of Contract			3 years
Derivative, Fixed Interest Rate	1.17%		1.17%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap 2013 effective 6/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Term of Contract			6 years
Derivative, Fixed Interest Rate	2.32%		2.32%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap 2013 effective 6/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.85%		1.85%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 9/2/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Sep. 2, 2014
Derivative Asset, Notional Amount	$ 25		$ 25
Objectives for Using Derivative Instruments			The interest rate swaps will effectively fix the Bank’s interest payments on $150 million of its LIBOR-indexed deposit liabilities
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 9/2/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Term of Contract			3 years
Derivative, Fixed Interest Rate	1.17%		1.17%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 9/2/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Term of Contract			6 years
Derivative, Fixed Interest Rate	2.32%		2.32%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 9/2/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.85%		1.85%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 12/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Inception Date			Dec. 1, 2014
Derivative Asset, Notional Amount	$ 25		$ 25
Objectives for Using Derivative Instruments			The interest rate swaps will effectively fix the Bank’s interest payments on $150 million of its LIBOR-indexed deposit liabilities
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 12/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Term of Contract			3 years
Derivative, Fixed Interest Rate	1.17%		1.17%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 12/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Term of Contract			6 years
Derivative, Fixed Interest Rate	2.32%		2.32%
Interest Rate Swap [Member] | Bank $25m LIBOR Swap effective 12/1/14 [Member] | Private Banking Segment [Member] | Designated as Hedging Instrument [Member] | Weighted Average [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.85%		1.85%

Derivatives and Hedging Activ63

Derivatives and Hedging Activities Non-designated Hedges Text description (Details) - Not Designated as Hedging Instrument [Member] $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)contracts	Dec. 31, 2016USD ($)contracts
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | contracts	138	136
Derivative, Notional Amount | $	$ 1,100	$ 1,100
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | contracts	2	1
Derivative, Notional Amount | $	$ 0.1	$ 0.1
Loan Participations and Assignments [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | contracts	6	2
Derivative, Notional Amount | $	$ 48.2	$ 13.3
Derivative, Underlying Risk, Description	The Bank has no obligations under the risk participation agreements unless the borrower defaults on their swap transaction with the lead bank and the swap is in a liability position to the borrower. In that instance, the Bank has agreed to pay the lead bank a portion of the swap’s termination value at the time of the default.
Other Contract [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | contracts	2
Derivative, Notional Amount | $	$ 6.1	$ 6.1
Derivative, Underlying Risk, Description	The other financial institution has no obligations under the risk participation agreements unless the borrowers default on their swap transactions with the Bank and the swaps are in liability positions to the borrower. In those instances, the other financial institution has agreed to pay the Bank a portion of the swap’s termination value at the time of the default.

Derivatives and Hedging Activ64

Derivatives and Hedging Activities Derivatives not designated as hedges, effect on statement of operations (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Description of Location of Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments in Financial Statements				Other income/ (expense)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (4)	$ (1,547)	$ (2,146)	$ (326)
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(324)	(1,554)	(2,159)	(646)
Not Designated as Hedging Instrument [Member] | Loan Participations and Assignments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 320	$ 7	$ 13	$ 320

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Expense Components [Line Items]
Income before income taxes	$ 33,456	$ 23,768	$ 55,005	$ 48,093
Income tax expense	9,963	7,626	16,516	15,064
Net income from continuing operations	23,493	16,142	$ 38,489	$ 33,029
Effective Income Tax Rate, Continuing Operations			30.00%	31.30%
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax			$ 4,606	$ 5,658
Discontinued Operation, Tax Effect of Discontinued Operation			1,911	2,348
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	1,063	1,245	$ 2,695	$ 3,310
Effective Tax Rate Discontinued Operations			41.50%	41.50%
Tax effect Attributable to Noncontrolling Interests			$ 0	$ 0
Net income attributable to noncontrolling interests	1,150	989	$ 2,116	$ 1,900
Effective Tax Rate Noncontrolling Interests			0.00%	0.00%
Income from Continuing and Discontinued Operations Attributable to Parent Before Tax			$ 57,495	$ 51,851
Tax Expense (Benefit) Total			18,427	17,412
Net income attributable to the Company	$ 23,406	$ 16,398	$ 39,068	$ 34,439
Effective Tax Rate Total			32.00%	33.60%

Income Taxes Income Taxes Discu

Income Taxes Income Taxes Discussion (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent			30.00%	31.30%
Income tax expense	$ 9,963	$ 7,626	$ 16,516	$ 15,064
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate			35.00%	35.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount			$ 100

Noncontrolling Interests Compon

Noncontrolling Interests Components of Noncontrolling Interests (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Redeemable Noncontrolling Interest [Line Items]
Redeemable and Nonredeemable Noncontrolling Interest		$ 21,591	$ 21,133
Redeemable Noncontrolling Interests		17,216	16,972
Nonredeemable Noncontrolling Interest		4,375	4,161
Anchor [Member]
Redeemable Noncontrolling Interest [Line Items]
Redeemable and Nonredeemable Noncontrolling Interest		10,991	10,934
BOS [Member]
Redeemable Noncontrolling Interest [Line Items]
Redeemable and Nonredeemable Noncontrolling Interest		7,178	6,782
DGHM [Member]
Redeemable Noncontrolling Interest [Line Items]
Redeemable Noncontrolling Interests	[1]	$ 3,422	$ 3,417
[1]	Only includes redeemable noncontrolling interests.

Noncontrolling Interests Redeem

Noncontrolling Interests Redeemable Noncontrolilng Interests Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests at beginning of period			$ 16,972
Nonredeemable Noncontrolling Interest at beginning of period			4,161
Net income attributable to noncontrolling interests	$ 1,150	$ 989	2,116	$ 1,900
Redeemable noncontrolling interests at end of period	17,216		17,216
Nonredeemable Noncontrolling Interest at end of period	4,375		4,375
Redeemable Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests at beginning of period	17,232	16,938	16,972	18,088
Net income attributable to noncontrolling interests	859	769	1,583	1,487
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(842)	(788)	(1,545)	(1,404)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	66	(908)	132	(766)
Amortization of Noncontrolling Interest Equity Compensation	102	76	204	187
Noncontrolling Interest, adjustment to fair value	(201)	(244)	(130)	(1,749)
Redeemable noncontrolling interests at end of period	17,216	15,843	17,216	15,843
Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Line Items]
Nonredeemable Noncontrolling Interest at beginning of period	3,993	3,116	4,161	3,393
Net income attributable to noncontrolling interests	291	220	533	413
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(284)	(198)	(519)	(440)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	0	(18)	0	(18)
Amortization of Noncontrolling Interest Equity Compensation	250	132	506	264
Noncontrolling Interest, adjustment to fair value	125	127	(306)	(233)
Nonredeemable Noncontrolling Interest at end of period	$ 4,375	$ 3,379	$ 4,375	$ 3,379

Noncontrolling Interests Noncon

Noncontrolling Interests Noncontrolling Interests - Text Details (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Noncontrolling Interest [Abstract]
Net income attributable to noncontrolling interests	$ 1,150	$ 989	$ 2,116	$ 1,900
Redeemable Noncontrolling Interest, Equity, Carrying Amount	17,216		17,216		$ 16,972
Nonredeemable Noncontrolling Interest	$ 4,375		$ 4,375		$ 4,161

Accumulated Other Comprehensi70

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	$ 141	$ 157	$ 152	$ 158
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(206)	(266)	(386)	(512)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(65)	(109)	(234)	(354)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Gain (Loss) on Investments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	237	245	256	246
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Income Tax Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	96	88	104	88
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Net Income Attributable to the Company [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	141	157	152	158
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Hedges related to deposits [Member] | Income Tax Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(149)	(185)	(275)	(357)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Hedges related to deposits [Member] | Interest Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	(357)	(453)	(660)	(914)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Hedges related to deposits [Member] | Other Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2)	(2)	1	(45)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Hedges related to deposits [Member] | Net Income Attributable to the Company [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	$ (206)	$ (266)	$ (386)	$ (512)

Restructuring (Details)

Restructuring (Details) - USD ($)	3 Months Ended				12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, beginning of period	$ 1,359,000	$ 1,977,000	$ 3,568,000	$ 3,305,000
Restructuring and Related Cost, Incurred Cost			905,000	1,112,000
Restructuring Reserve, Settled with Cash	(335,000)	(618,000)	(1,214,000)	(849,000)
Restructuring Reserve, end of period	1,024,000	1,359,000	3,259,000	3,568,000	$ 3,305,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, beginning of period	1,359,000	1,977,000	3,568,000	3,305,000
Restructuring and Related Cost, Incurred Cost			905,000	1,112,000
Restructuring Reserve, Settled with Cash	(335,000)	(618,000)	(1,214,000)	(849,000)
Restructuring Reserve, end of period	1,024,000	$ 1,359,000	3,259,000	3,568,000	3,305,000
Banyan Acquisition and WMT Management Restructuring Plan [Member] | Wealth Management and Trust Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			$ 900,000	$ 1,100,000	$ 3,700,000	$ 700,000
Restructuring and Related Cost, Cost Incurred to Date	6,400,000
Restructuring and Related Cost, Expected Cost Remaining	$ 0