NBT Bancorp (NBTB) 10-Q 8 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Cover [Abstract]
Entity Registrant Name	NBT BANCORP INC
Entity Central Index Key	0000790359
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		43,777,233
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	0-14703
Entity Tax Identification Number	16-1268674
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	52 South Broad Street
Entity Address, City or Town	Norwich
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	13815
City Area Code	607
Local Phone Number	337-2265
Security Exchange Name	NASDAQ
Trading Symbol	NBTB
Title of 12(b) Security	Common Stock, par value $0.01 per share

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 150,154	$ 175,550
Short-term interest bearing accounts	39,278	5,405
Equity securities, at fair value	26,298	23,053
Securities available for sale, at fair value	979,696	998,496
Securities held to maturity (fair value $754,995 and $778,675, respectively)	744,601	783,599
Federal Reserve and Federal Home Loan Bank stock	45,996	53,229
Loans held for sale	15,662	6,943
Loans	6,963,273	6,887,709
Less allowance for loan losses	72,165	72,505
Net loans	6,891,108	6,815,204
Premises and equipment, net	76,652	78,970
Goodwill	274,769	274,769
Intangible assets, net	13,738	15,599
Bank owned life insurance	180,042	177,479
Other assets	197,724	148,067
Total assets	9,635,718	9,556,363
Liabilities
Demand (noninterest bearing)	2,336,776	2,361,099
Savings, NOW and money market	4,280,363	4,076,434
Time	976,567	930,678
Total deposits	7,593,706	7,368,211
Short-term borrowings	609,366	871,696
Long-term debt	84,267	73,724
Junior subordinated debt	101,196	101,196
Other liabilities	172,360	123,627
Total liabilities	8,560,895	8,538,454
Stockholders' equity
Preferred stock, $0.01 par value. Authorized 2,500,000 shares at June 30, 2019 and December 31, 2018	0	0
Common stock, $0.01 par value. Authorized 100,000,000 shares at June 30, 2019 and December 31, 2018; issued 49,651,493 at June 30, 2019 and December 31, 2018	497	497
Additional paid-in-capital	575,794	575,466
Retained earnings	658,107	621,203
Accumulated other comprehensive loss	(25,036)	(43,174)
Common stock in treasury, at cost, 5,882,082 and 5,978,527 shares at June 30, 2019 and December 31, 2018, respectively	(134,539)	(136,083)
Total stockholders' equity	1,074,823	1,017,909
Total liabilities and stockholders' equity	$ 9,635,718	$ 9,556,363

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Securities held to maturity fair value	$ 754,995	$ 778,675
Stockholders' equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,500,000	2,500,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	49,651,493	49,651,493
Common stock in treasury, at cost (in shares)	5,882,082	5,978,527

Consolidated Statements of Inco

Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest, fee and dividend income
Interest and fees on loans	$ 81,271	$ 74,172	$ 160,592	$ 144,615
Securities available for sale	6,031	7,003	11,953	13,929
Securities held to maturity	5,089	2,811	10,306	5,436
Other	842	781	1,726	1,547
Total interest, fee and dividend income	93,233	84,767	184,577	165,527
Interest expense
Deposits	10,234	5,079	19,060	9,010
Short-term borrowings	2,760	2,455	5,997	4,421
Long-term debt	471	452	893	928
Junior subordinated debt	1,141	1,040	2,309	1,941
Total interest expense	14,606	9,026	28,259	16,300
Net interest income	78,627	75,741	156,318	149,227
Provision for loan losses	7,277	8,778	13,084	16,274
Net interest income after provision for loan losses	71,350	66,963	143,234	132,953
Noninterest income
Insurance and other financial services revenue	5,938	5,826	12,694	12,330
Service charges on deposit accounts	4,224	4,246	8,460	8,218
ATM and debit card fees	6,156	5,816	11,681	11,089
Retirement plan administration fees	7,836	7,296	15,570	12,635
Trust	4,731	5,265	9,282	10,143
Bank owned life insurance	1,186	1,217	2,563	2,564
Net securities (losses) gains	(69)	91	(12)	163
Other	4,239	4,401	7,824	8,293
Total noninterest income	34,241	34,158	68,062	65,435
Noninterest expense
Salaries and employee benefits	38,567	37,726	77,923	74,293
Occupancy	5,443	5,535	11,718	11,654
Data processing and communications	4,693	4,508	9,107	8,787
Professional fees and outside services	3,359	3,336	7,027	6,828
Equipment	4,518	4,151	9,275	8,189
Office supplies and postage	1,577	1,504	3,168	3,077
FDIC expenses	949	1,092	1,966	2,293
Advertising	641	700	1,144	1,037
Amortization of intangible assets	893	1,096	1,861	2,010
Loan collection and other real estate owned, net	961	908	1,746	2,245
Other	4,630	4,332	9,756	8,747
Total noninterest expense	66,231	64,888	134,691	129,160
Income before income tax expense	39,360	36,233	76,605	69,228
Income tax expense	8,805	8,112	16,923	15,121
Net income	$ 30,555	$ 28,121	$ 59,682	$ 54,107
Earnings per share
Basic (in dollars per share)	$ 0.70	$ 0.64	$ 1.36	$ 1.24
Diluted (in dollars per share)	$ 0.69	$ 0.64	$ 1.35	$ 1.23

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 30,555	$ 28,121	$ 59,682	$ 54,107
Securities available for sale:
Unrealized net holding gains (losses) arising during the period, gross	13,391	(5,353)	24,427	(20,807)
Tax effect	(3,348)	1,338	(6,107)	5,202
Unrealized net holding gains (losses) arising during the period, net	10,043	(4,015)	18,320	(15,605)
Reclassification adjustment for net losses in net income, gross	0	0	99	0
Tax effect	0	0	(25)	0
Reclassification adjustment for net losses in net income, net	0	0	74	0
Amortization of unrealized net gains for the reclassification of available for sale securities to held to maturity, gross	199	177	366	365
Tax effect	(50)	(44)	(92)	(91)
Amortization of unrealized net gains for the reclassification of available for sale securities to held to maturity, net	149	133	274	274
Total securities available for sale, net	10,192	(3,882)	18,668	(15,331)
Cash flow hedges:
Unrealized (losses) gains on derivatives (cash flow hedges), gross	(314)	424	(484)	1,472
Tax effect	78	(106)	121	(368)
Unrealized (losses) gains on derivatives (cash flow hedges), net	(236)	318	(363)	1,104
Reclassification of net unrealized (gains) on cash flow hedges to interest (income), gross	(738)	(540)	(1,537)	(899)
Tax effect	185	135	385	225
Reclassification of net unrealized (gains) on cash flow hedges to interest (income), net	(553)	(405)	(1,152)	(674)
Total cash flow hedges, net	(789)	(87)	(1,515)	430
Pension and other benefits:
Amortization of prior service cost and actuarial losses, gross	657	295	1,313	590
Tax effect	(164)	(74)	(328)	(148)
Amortization of prior service cost and actuarial losses, net	493	221	985	442
Total pension and other benefits, net	493	221	985	442
Total other comprehensive income (loss)	9,896	(3,748)	18,138	(14,459)
Comprehensive income	$ 40,451	$ 24,373	$ 77,820	$ 39,648

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in-Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Common Stock in Treasury [Member]	Total
Cumulative effect adjustment for ASU implementation | ASU 2016-01 [Member]	$ 0	$ 0	$ 2,618	$ (2,645)	$ 0	$ (27)
Cumulative effect adjustment for ASU implementation | ASU 2018-02 [Member]	0	0	5,575	(5,575)	0	0
Balance at Dec. 31, 2017	497	574,209	543,713	(22,077)	(138,165)	958,177
Net income	0	0	54,107	0	0	54,107
Cash dividends	0	0	(20,969)	0	0	(20,969)
Net issuance of shares to employee and other stock plans	0	(2,422)	0	0	1,568	(854)
Stock-based compensation	0	2,954	0	0	0	2,954
Other comprehensive (loss) income	0	0	0	(14,459)	0	(14,459)
Balance at Jun. 30, 2018	497	574,741	585,044	(44,756)	(136,597)	978,929
Cumulative effect adjustment for ASU implementation | ASU 2016-01 [Member]	0	0	1,143	(17)	0	1,126
Balance at Mar. 31, 2018	497	574,626	555,783	(40,991)	(137,185)	952,730
Net income	0	0	28,121	0	0	28,121
Cash dividends	0	0	(3)	0	0	(3)
Net issuance of shares to employee and other stock plans	0	(385)	0	0	588	203
Stock-based compensation	0	500	0	0	0	500
Other comprehensive (loss) income	0	0	0	(3,748)	0	(3,748)
Balance at Jun. 30, 2018	497	574,741	585,044	(44,756)	(136,597)	978,929
Balance at Dec. 31, 2018	497	575,466	621,203	(43,174)	(136,083)	1,017,909
Net income	0	0	59,682	0	0	59,682
Cash dividends	0	0	(22,778)	0	0	(22,778)
Net issuance of shares to employee and other stock plans	0	(2,812)	0	0	1,544	(1,268)
Stock-based compensation	0	3,140	0	0	0	3,140
Other comprehensive (loss) income	0	0	0	18,138	0	18,138
Balance at Jun. 30, 2019	497	575,794	658,107	(25,036)	(134,539)	1,074,823
Balance at Mar. 31, 2019	497	575,944	627,556	(34,932)	(135,010)	1,034,055
Net income	0	0	30,555	0	0	30,555
Cash dividends	0	0	(4)	0	0	(4)
Net issuance of shares to employee and other stock plans	0	(713)	0	0	471	(242)
Stock-based compensation	0	563	0	0	0	563
Other comprehensive (loss) income	0	0	0	9,896	0	9,896
Balance at Jun. 30, 2019	$ 497	$ 575,794	$ 658,107	$ (25,036)	$ (134,539)	$ 1,074,823

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements of Stockholders' Equity (unaudited) [Abstract]
Cash dividends - per share (in dollars per share)	$ 0	$ 0	$ 0.52	$ 0.48
Net issuance of shares to employee benefit plans and other stock plans (in shares)	29,525	31,546	96,445	104,390

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities
Net income	$ 59,682	$ 54,107
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan losses	13,084	16,274
Depreciation and amortization of premises and equipment	4,732	4,644
Net amortization on securities	1,619	2,133
Amortization of intangible assets	1,861	2,010
Amortization of operating lease right-of-use assets	3,590	0
Excess tax benefit on stock-based compensation	(311)	(447)
Stock-based compensation expense	3,140	2,954
Bank owned life insurance income	(2,563)	(2,564)
Proceeds from sale of loans held for sale	65,099	49,572
Originations of loans held for sale	(73,562)	(49,243)
Net gains on sale of loans held for sale	(256)	(87)
Net security losses (gains)	12	(163)
Net gains on sale of other real estate owned	(155)	(190)
Net change in other assets and other liabilities	(14,151)	(21,825)
Net cash provided by operating activities	61,821	57,175
Investing activities
Net cash used in acquisitions	0	(7,884)
Securities available for sale:
Proceeds from maturities, calls and principal paydowns	136,764	124,873
Proceeds from sales	26,203	0
Purchases	(120,812)	(98,502)
Securities held to maturity:
Proceeds from maturities, calls and principal paydowns	88,299	45,332
Purchases	(49,482)	(105,531)
Equity securities:
Proceeds from sales	0	2,623
Purchases	(34)	0
Other:
Net increase in loans	(89,334)	(288,768)
Proceeds from Federal Home Loan Bank stock redemption	98,869	123,642
Purchases of Federal Reserve and Federal Home Loan Bank stock	(91,636)	(131,159)
Purchases of premises and equipment, net	(2,582)	(2,037)
Proceeds from sales of other real estate owned	739	1,282
Net cash used in investing activities	(3,006)	(336,129)
Financing activities
Net increase in deposits	225,495	173,813
Net (decrease) increase in short-term borrowings	(262,330)	134,874
Proceeds from issuance of long-term debt	10,598	25,000
Repayments of long-term debt	(55)	(40,091)
Proceeds from the issuance of shares to employee and other stock plans	172	881
Cash paid by employer for tax-withholdings on stock issuance	(1,440)	(1,735)
Cash dividends	(22,778)	(20,969)
Net cash (used in) provided by financing activities	(50,338)	271,773
Net increase (decrease) in cash and cash equivalents	8,477	(7,181)
Cash and cash equivalents at beginning of period	180,955	159,664
Cash and cash equivalents at end of period	189,432	152,483
Cash paid during the period for:
Interest expense	27,596	15,672
Income taxes paid, net of refund	13,074	22,890
Noncash investing activities:
Loans transferred to other real estate owned	346	912
Acquisitions:
Fair value of assets acquired	$ 0	$ 6,274

Description of Business

Description of Business	6 Months Ended
	Jun. 30, 2019
Description of Business [Abstract]
Description of Business	1. Description of Business NBT Bancorp Inc. (the “Registrant” or the “Company”) is a registered financial holding company incorporated in the state of Delaware in 1986, with its principal headquarters located in Norwich, New York. The principal assets of the Registrant consist of all of the outstanding shares of common stock of its subsidiaries, including: NBT Bank, National Association (the “Bank”), NBT Financial Services, Inc. (“NBT Financial”), NBT Holdings, Inc. (“NBT Holdings”), CNBF Capital Trust I, NBT Statutory Trust I, NBT Statutory Trust II, Alliance Financial Capital Trust I and Alliance Financial Capital Trust II (collectively, the “Trusts”). The Company’s principal sources of revenue are the management fees and dividends it receives from the Bank, NBT Financial and NBT Holdings. The Company’s business, primarily conducted through the Bank, consists of providing commercial banking, retail banking and wealth management services primarily to customers in its market area, which includes central and upstate New York, northeastern Pennsylvania, southern New Hampshire, western Massachusetts, Vermont and the southern coastal Maine area. The Company has been, and intends to continue to be, a community-oriented financial institution offering a variety of financial services. The Company’s business philosophy is to operate as a community bank with local decision-making, providing a broad array of banking and financial services to retail, commercial and municipal customers.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Basis of Presentation [Abstract]
Basis of Presentation	2. Basis of Presentation The accompanying unaudited interim consolidated financial statements include the accounts of the Registrant and its wholly-owned subsidiaries, the Bank, NBT Financial and NBT Holdings. Collectively, the Registrant and its subsidiaries are referred to herein as “the Company.” The interim data includes all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results for the interim periods in accordance with generally accepted accounting principles in the United States of America (“GAAP”). These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2018 Annual Report on Form 10-K. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other interim period. All material intercompany transactions have been eliminated in consolidation. Amounts previously reported in the consolidated financial statements are reclassified whenever necessary to conform to current period presentation. The Company has evaluated subsequent events for potential recognition and/or disclosure and there were none identified.

Securities

Securities	6 Months Ended
	Jun. 30, 2019
Securities [Abstract]
Securities	3. Securities The amortized cost, estimated fair value and unrealized gains (losses) of available for sale (“AFS”) securities are as follows: (In thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value As of June 30, 2019 Federal agency $ 52,987 $ 28 $ 178 $ 52,837 State & municipal 9 - - 9 Mortgage-backed: Government-sponsored enterprises 458,878 3,624 666 461,836 U.S. government agency securities 36,447 955 11 37,391 Collateralized mortgage obligations: Government-sponsored enterprises 351,250 2,210 847 352,613 U.S. government agency securities 74,729 734 453 75,010 Total AFS securities $ 974,300 $ 7,551 $ 2,155 $ 979,696 As of December 31, 2018 Federal agency $ 84,982 $ 10 $ 693 $ 84,299 State & municipal 30,136 16 237 29,915 Mortgage-backed: Government-sponsored enterprises 493,225 439 10,354 483,310 U.S. government agency securities 29,190 270 475 28,985 Collateralized mortgage obligations: Government-sponsored enterprises 332,409 344 7,211 325,542 U.S. government agency securities 47,684 137 1,376 46,445 Total AFS securities $ 1,017,626 $ 1,216 $ 20,346 $ 998,496 The components of net realized gains (losses) on the sale of AFS securities are as follows. These amounts were reclassified out of AOCI and into earnings. There were sales of AFS securities during the three months ended June 30, 2019 and 2018. Six Months Ended June 30, (In thousands) 2019 2018 Gross realized gains $ 53 $ - Gross realized (losses) (152 ) - Net AFS realized (losses) $ (99 ) $ - Included in net gains (losses) from sale transactions, the Company recorded gains from calls on AFS securities of approximately $4 thousand for the six months ended June 30, 2019. There were no recorded gains from calls on AFS securities included in net gains (losses) from sales transactions for the three months ended June 30, 2019 and 2018 and for the six months ended June 30, 2018 The amortized cost, estimated fair value and unrealized gains (losses) of held to maturity (“HTM”) securities are as follows: (In thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value As of June 30, 2019 Federal agency $ 19,996 $ 46 $ - $ 20,042 Mortgage-backed: Government-sponsored enterprises 163,049 2,334 484 164,899 U.S. government agency securities 14,530 921 - 15,451 Collateralized mortgage obligations: Government-sponsored enterprises 232,825 2,712 539 234,998 U.S. government agency securities 103,457 3,303 - 106,760 State & municipal 210,744 2,177 76 212,845 Total HTM securities $ 744,601 $ 11,493 $ 1,099 $ 754,995 As of December 31, 2018 Federal agency $ 19,995 $ 52 $ - $ 20,047 Mortgage-backed: Government-sponsored enterprises 164,618 712 2,773 162,557 U.S. government agency securities 15,230 403 - 15,633 Collateralized mortgage obligations: Government-sponsored enterprises 257,475 1,097 3,897 254,675 U.S. government agency securities 83,148 767 - 83,915 State & municipal 243,133 331 1,616 241,848 Total HTM securities $ 783,599 $ 3,362 $ 8,286 $ 778,675 AFS and HTM securities with amortized costs totaling $1.4 billion at June 30, 2019 and $1.5 billion at December 31, 2018 were pledged to secure public deposits and for other purposes required or permitted by law. Additionally, at June 30, 2019 and December 31, 2018, AFS and HTM securities with an amortized cost of $197.4 million and $215.3 million, respectively, were pledged as collateral for securities sold under repurchase agreements. The following table sets forth information with regard to investment securities with unrealized losses segregated according to the length of time the securities had been in a continuous unrealized loss position: Less Than 12 Months 12 Months or Longer Total (In thousands) Fair Value Unrealized Losses Number of Positions Fair Value Unrealized Losses Number of Positions Fair Value Unrealized Losses Number of Positions As of June 30, 2019 AFS securities: Federal agency $ - $ - - $ 9,822 $ (178 ) 1 $ 9,822 $ (178 ) 1 Mortgage-backed - - - 137,139 (677 ) 44 137,139 (677 ) 44 Collateralized mortgage obligations 4,342 (10 ) 2 167,735 (1,290 ) 39 172,077 (1,300 ) 41 Total securities with unrealized losses $ 4,342 $ (10 ) 2 $ 314,696 $ (2,145 ) 84 $ 319,038 $ (2,155 ) 86 HTM securities: Mortgage-backed $ - $ - - $ 40,748 $ (484 ) 4 $ 40,748 $ (484 ) 4 Collateralized mortgage obligations 4,561 (75 ) 1 29,546 (464 ) 6 34,107 (539 ) 7 State & municipal - - - 8,590 (76 ) 14 8,590 (76 ) 14 Total securities with unrealized losses $ 4,561 $ (75 ) 1 $ 78,884 $ (1,024 ) 24 $ 83,445 $ (1,099 ) 25 As of December 31, 2018 AFS securities: Federal agency $ - $ - - $ 64,294 $ (693 ) 6 $ 64,294 $ (693 ) 6 State & municipal 1,715 (3 ) 3 22,324 (234 ) 35 24,039 (237 ) 38 Mortgage-backed 18,462 (65 ) 12 428,440 (10,764 ) 101 446,902 (10,829 ) 113 Collateralized mortgage obligations 12,118 (69 ) 5 320,908 (8,518 ) 62 333,026 (8,587 ) 67 Total securities with unrealized losses $ 32,295 $ (137 ) 20 $ 835,966 $ (20,209 ) 204 $ 868,261 $ (20,346 ) 224 HTM securities: Mortgage-backed $ - $ - - $ 82,579 $ (2,773 ) 6 $ 82,579 $ (2,773 ) 6 Collateralized mortgage obligations 4,386 (7 ) 2 145,396 (3,890 ) 26 149,782 (3,897 ) 28 State & municipal 18,907 (84 ) 30 58,258 (1,532 ) 86 77,165 (1,616 ) 116 Total securities with unrealized losses $ 23,293 $ (91 ) 32 $ 286,233 $ (8,195 ) 118 $ 309,526 $ (8,286 ) 150 Declines in the fair value of HTM securities below their amortized cost, less any current period credit loss, that are deemed to be other-than-temporary are reflected in earnings as realized losses or in other comprehensive income (“OCI”). The classification is dependent upon whether the Company intends to sell the security, or whether it is more likely than not, that the Company will be required to sell the security before recovery. The other-than-temporary impairment (“OTTI”) shall be recognized in earnings equal to the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date. If the Company does not intend to sell the security and it is not more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss, the OTTI shall be separated into (i) the amount representing the credit loss and (ii) the amount related to all other factors. The amount of the total OTTI related to the credit loss shall be recognized in earnings. The amount of the total OTTI related to other factors shall be recognized in OCI, net of applicable taxes. In estimating OTTI losses, management considers, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer and (iii) the historical and implied volatility of the fair value of the security. Management has the intent to hold the securities classified as HTM until they mature, at which time it is believed the Company will receive full value for the securities. The unrealized losses on HTM debt securities are due to increases in market interest rates over yields at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. The fair value is expected to recover as the bond approaches its maturity date or repricing date or if market yields for such investments declines. Management also has the intent to hold and will not be required to sell, the debt securities classified as AFS for a period of time sufficient for a recovery of cost, which may be until maturity. The unrealized losses on AFS debt securities are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. For AFS debt securities, OTTI losses are recognized in earnings if the Company intends to sell the security. In other cases the Company considers the relevant factors noted above, as well as the Company’s intent and ability to retain its investment for a period of time sufficient to allow for any anticipated recovery in market value and whether evidence exists to support a realizable value equal to or greater than the cost basis. Any impairment loss on an equity security is equal to the full difference between the cost basis and the fair value of the security. As of June 30, 2019 and December 31, 2018, management believes the impairments detailed in the table above are temporary. There were no OTTI losses realized in the Company’s unaudited interim consolidated statements of income for the three and six months ended June 30, 2019, or in the three and six months ended June 30, 2018. The following tables set forth information with regard to gains and losses on equity securities: Three Months Ended June 30, (In thousands) 2019 2018 Net gains and losses recognized on equity securities $ (69 ) $ 91 Less: Net gains and losses recognized during the period on equity securities sold during the period - - Unrealized gains and losses recognized on equity securities still held $ (69 ) $ 91 Six Months Ended June 30, (In thousands) 2019 2018 Net gains and losses recognized on equity securities $ 87 $ 163 Less: Net gains and losses recognized during the period on equity securities sold during the period - 44 Unrealized gains and losses recognized on equity securities still held $ 87 $ 119 The following tables set forth information with regard to contractual maturities of debt securities at June 30, 2019: (In thousands) Amortized Cost Estimated Fair Value AFS debt securities: Within one year $ 123 $ 123 From one to five years 52,233 52,196 From five to ten years 174,204 175,628 After ten years 747,740 751,749 Total AFS debt securities $ 974,300 $ 979,696 HTM debt securities: Within one year $ 60,959 $ 60,959 From one to five years 67,594 68,031 From five to ten years 190,717 193,697 After ten years 425,331 432,308 Total HTM debt securities $ 744,601 $ 754,995 Maturities of mortgage-backed, collateralized mortgage obligations and asset-backed securities are stated based on their estimated average lives. Actual maturities may differ from estimated average lives or contractual maturities because, in certain cases, borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Except for U.S. Government securities, there were no holdings, when taken in the aggregate, of any single issuer that exceeded 10% of consolidated stockholders’ equity at June 30, 2019 and December 31, 2018.

Allowance for Loan Losses and C

Allowance for Loan Losses and Credit Quality of Loans	6 Months Ended
	Jun. 30, 2019
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Allowance for Loan Losses and Credit Quality of Loans	4. Allowance for Loan Losses and Credit Quality of Loans Allowance for Loan Losses The allowance for loan losses is maintained at a level estimated by management to provide adequately for probable incurred losses inherent in the current loan portfolio. The appropriateness of the allowance for loan losses is continuously monitored. It is assessed for appropriateness using a methodology designed to ensure the level of the allowance reasonably reflects the loan portfolio’s risk profile and can absorb all reasonably estimable credit losses inherent in the current loan portfolio. To develop and document a systematic methodology for determining the allowance for loan losses, the Company has divided the loan portfolio into three segments, each with different risk characteristics and methodologies for assessing risk. Those segments are further segregated between our loans accounted for under the amortized cost method (referred to as “originated” loans) and loans acquired in a business combination (referred to as “acquired” loans). Each portfolio segment is broken down into class segments where appropriate. Class segments contain unique measurement attributes, risk characteristics and methods for monitoring and assessing risk that are necessary to develop the allowance for loan losses. Unique characteristics such as borrower type, loan type, collateral type and risk characteristics define each class segment. The following table illustrates the portfolio and class segments for the Company’s loan portfolio: Portfolio Class Commercial Loans Commercial and Industrial Commercial Real Estate Business Banking Consumer Loans Dealer Finance Specialty Lending Direct Residential Real Estate Commercial Loans The Company offers a variety of Commercial loan products. The Company’s underwriting analysis for commercial loans typically includes credit verification, independent appraisals, a review of the borrower’s financial condition and a detailed analysis of the borrower’s underlying cash flows. Commercial and Industrial (“C&I”) – Commercial Real Estate (“CRE”) – Business Banking - Consumer Loans The Company offers a variety of Consumer loan products including Dealer Finance, Specialty Lending and Direct loans. Dealer Finance – Specialty Lending – Direct – Residential Real Estate Residential real estate loans consist primarily of loans secured by a first or second mortgage on primary residences. We originate adjustable-rate and fixed-rate, one-to-four-family residential real estate loans for the construction, purchase or refinancing of a mortgage. These loans are collateralized by owner-occupied properties located in the Company’s market area. When market conditions are favorable, for longer term, fixed-rate residential real estate mortgages without escrow, the Company retains the servicing, but sells the right to receive principal and interest to Government-sponsored enterprises. This practice allows the Company to manage interest rate risk, liquidity risk and credit risk. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 85% of the purchase price or appraised value (whichever is lower) or have private mortgage insurance. Mortgage title insurance and hazard insurance are normally required. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. Allowance for Loan Loss Calculation For purposes of evaluating the adequacy of the allowance, the Company considers a number of significant factors that affect the collectability of the portfolio. For individually impaired loans, these include estimates of impairment, if any, which reflect the facts and circumstances that affect the likelihood of repayment of such loans as of the evaluation date. For homogeneous pools of loans, estimates of the Company’s exposure to credit loss reflect a current assessment of a number of factors, which could affect collectability. These factors include: past loss experience, size, trend, composition and nature of loans; changes in lending policies and procedures, including underwriting standards and collection, charge-offs and recoveries; trends experienced in nonperforming and delinquent loans; current economic conditions in the Company’s market; portfolio concentrations that may affect loss experienced across one or more components of the portfolio; the effect of external factors such as competition, legal and regulatory requirements; and the experience, ability and depth of lending management and staff. In addition, various regulatory agencies, as an integral component of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to make loan grade changes as well as recognize additions to the allowance based on their examinations. After a thorough consideration of the factors discussed above, any required additions or reductions to the allowance for loan losses are made periodically by charges or credits to the provision for loan losses. These charges are necessary to maintain the allowance at a level that management believes is reflective of overall level of incurred loss in the portfolio. While management uses available information to recognize losses on loans, additions and reductions of the allowance may fluctuate from one reporting period to another. These fluctuations are reflective of changes in risk associated with portfolio content or changes in management’s assessment of any or all of the determining factors discussed above. The following tables illustrate the changes in the allowance for loan losses by our portfolio segments: (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total Balance as of March 31, 2019 $ 32,159 $ 36,804 $ 2,442 $ 71,405 Charge-offs (1,171 ) (6,927 ) (334 ) (8,432 ) Recoveries 118 1,742 55 1,915 Provision 2,046 4,915 316 7,277 Ending Balance as of June 30, 2019 $ 33,152 $ 36,534 $ 2,479 $ 72,165 Balance as of March 31, 2018 $ 28,190 $ 36,973 $ 5,037 $ 70,200 Charge-offs (907 ) (7,442 ) (208 ) (8,557 ) Recoveries 183 1,700 146 2,029 Provision 3,593 5,248 (63 ) 8,778 Ending Balance as of June 30, 2018 $ 31,059 $ 36,479 $ 4,912 $ 72,450 (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total Balance as of December 31, 2018 $ 32,759 $ 37,178 $ 2,568 $ 72,505 Charge-offs (1,918 ) (14,360 ) (608 ) (16,886 ) Recoveries 212 3,141 109 3,462 Provision 2,099 10,575 410 13,084 Ending Balance as of June 30, 2019 $ 33,152 $ 36,534 $ 2,479 $ 72,165 Balance as of December 31, 2017 $ 27,606 $ 36,830 $ 5,064 $ 69,500 Charge-offs (1,712 ) (15,129 ) (390 ) (17,231 ) Recoveries 370 3,344 193 3,907 Provision 4,795 11,434 45 16,274 Ending Balance as of June 30, 2018 $ 31,059 $ 36,479 $ 4,912 $ 72,450 For acquired loans, to the extent that we experience deterioration in borrower credit quality resulting in a decrease in our expected cash flows subsequent to the acquisition of the loans, an allowance for loan losses is established based on our estimate of incurred losses at the balance sheet date. approximately The following tables illustrate the allowance for loan losses and the recorded investment by portfolio segments: (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total As of June 30, 2019 Allowance for loan losses $ 33,152 $ 36,534 $ 2,479 $ 72,165 Allowance for loans individually evaluated for impairment 11 - - 11 Allowance for loans collectively evaluated for impairment $ 33,141 $ 36,534 $ 2,479 $ 72,154 Ending balance of loans $ 3,325,064 $ 2,234,130 $ 1,404,079 $ 6,963,273 Ending balance of originated loans individually evaluated for impairment 5,422 7,674 7,495 20,591 Ending balance of acquired loans collectively evaluated for impairment 139,710 27,582 137,622 304,914 Ending balance of originated loans collectively evaluated for impairment $ 3,179,932 $ 2,198,874 $ 1,258,962 $ 6,637,768 As of December 31, 2018 Allowance for loan losses $ 32,759 $ 37,178 $ 2,568 $ 72,505 Allowance for loans individually evaluated for impairment 25 - - 25 Allowance for loans collectively evaluated for impairment $ 32,734 $ 37,178 $ 2,568 $ 72,480 Ending balance of loans $ 3,222,310 $ 2,284,563 $ 1,380,836 $ 6,887,709 Ending balance of originated loans individually evaluated for impairment 5,786 7,887 6,905 20,578 Ending balance of acquired loans collectively evaluated for impairment 143,690 31,624 147,277 322,591 Ending balance of originated loans collectively evaluated for impairment $ 3,072,834 $ 2,245,052 $ 1,226,654 $ 6,544,540 Credit Quality of Loans For all loan classes within the Company’s loan portfolio, loans are placed on nonaccrual status when timely collection of principal and/or interest in accordance with contractual terms is in doubt. Loans are transferred to nonaccrual status generally when principal or interest payments become ninety days delinquent, unless the loan is well secured and in the process of collection or sooner when management concludes circumstances indicate that borrowers may be unable to meet contractual principal or interest payments. When a loan is transferred to a nonaccrual status, all interest previously accrued in the current period but not collected is reversed against interest income in that period. Interest accrued in a prior period and not collected is charged-off against the allowance for loan losses. If ultimate repayment of a nonaccrual loan is expected, any payments received are applied in accordance with contractual terms. If ultimate repayment of principal is not expected, any payment received on a nonaccrual loan is applied to principal until ultimate repayment becomes expected. For all loan classes within the Company’s loan portfolio, nonaccrual loans are returned to accrual status when they become current as to principal and interest and demonstrate a period of performance under the contractual terms and, in the opinion of management, are fully collectible as to principal and interest. For loans in all portfolios, the principal amount is charged off in full or in part as soon as management determines, based on available facts, that the collection of principal in full or in part is improbable. For Commercial loans, management considers specific facts and circumstances relative to individual credits in making such a determination. For Consumer and Residential Real Estate loan classes, management uses specific guidance and thresholds from the Federal Financial Institutions Examination Council’s Uniform Retail Credit Classification and Account Management Policy. The following tables set forth information with regard to past due and nonperforming loans by loan class: (In thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Nonaccrual Current Recorded Total Loans As of June 30, 2019 Originated Commercial Loans: C&I $ 43 $ 1,100 $ - $ 1,143 $ 952 $ 867,661 $ 869,756 CRE 4,791 370 - 5,161 4,596 1,822,746 1,832,503 Business Banking 1,537 295 - 1,832 6,314 474,949 483,095 Total Commercial Loans $ 6,371 $ 1,765 $ - $ 8,136 $ 11,862 $ 3,165,356 $ 3,185,354 Consumer Loans: Dealer Finance $ 11,710 $ 1,842 $ 741 $ 14,293 $ 1,737 $ 1,173,640 $ 1,189,670 Specialty Lending 3,452 1,880 1,481 6,813 - 513,161 519,974 Direct 2,554 631 145 3,330 2,650 490,924 496,904 Total Consumer Loans $ 17,716 $ 4,353 $ 2,367 $ 24,436 $ 4,387 $ 2,177,725 $ 2,206,548 Residential Real Estate $ 1,225 $ 830 $ - $ 2,055 $ 6,470 $ 1,257,932 $ 1,266,457 Total Originated Loans $ 25,312 $ 6,948 $ 2,367 $ 34,627 $ 22,719 $ 6,601,013 $ 6,658,359 Acquired Commercial Loans: C&I $ - $ - $ - $ - $ 38 $ 33,001 $ 33,039 CRE - - - - - 76,362 76,362 Business Banking 441 3 - 444 466 29,399 30,309 Total Commercial Loans $ 441 $ 3 $ - $ 444 $ 504 $ 138,762 $ 139,710 Consumer Loans: Direct $ 217 $ 22 $ 20 $ 259 $ 96 $ 27,227 $ 27,582 Total Consumer Loans $ 217 $ 22 $ 20 $ 259 $ 96 $ 27,227 $ 27,582 Residential Real Estate $ 648 $ 488 $ - $ 1,136 $ 1,350 $ 135,136 $ 137,622 Total Acquired Loans $ 1,306 $ 513 $ 20 $ 1,839 $ 1,950 $ 301,125 $ 304,914 Total Loans $ 26,618 $ 7,461 $ 2,387 $ 36,466 $ 24,669 $ 6,902,138 $ 6,963,273 (In thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Nonaccrual Current Recorded Total Loans As of December 31, 2018 Originated Commercial Loans: C&I $ 909 $ - $ - $ 909 $ 1,062 $ 846,148 $ 848,119 CRE 1,089 - 588 1,677 4,995 1,734,558 1,741,230 Business Banking 1,092 302 - 1,394 5,974 481,903 489,271 Total Commercial Loans $ 3,090 $ 302 $ 588 $ 3,980 $ 12,031 $ 3,062,609 $ 3,078,620 Consumer Loans: Dealer Finance $ 14,519 $ 2,300 $ 1,186 $ 18,005 $ 1,971 $ 1,196,136 $ 1,216,112 Specialty Lending 3,479 1,773 1,562 6,814 - 518,114 524,928 Direct 2,962 1,437 552 4,951 2,592 504,356 511,899 Total Consumer Loans $ 20,960 $ 5,510 $ 3,300 $ 29,770 $ 4,563 $ 2,218,606 $ 2,252,939 Residential Real Estate $ 1,426 $ 157 $ 1,182 $ 2,765 $ 6,778 $ 1,224,016 $ 1,233,559 Total Originated Loans $ 25,476 $ 5,969 $ 5,070 $ 36,515 $ 23,372 $ 6,505,231 $ 6,565,118 Acquired Commercial Loans: C&I $ - $ - $ - $ - $ - $ 26,124 $ 26,124 CRE - - - - - 84,492 84,492 Business Banking 466 288 - 754 390 31,930 33,074 Total Commercial Loans $ 466 $ 288 $ - $ 754 $ 390 $ 142,546 $ 143,690 Consumer Loans: Dealer Finance $ 1 $ 1 $ - $ 2 $ - $ 30 $ 32 Direct 152 41 15 208 227 31,157 31,592 Total Consumer Loans $ 153 $ 42 $ 15 $ 210 $ 227 $ 31,187 $ 31,624 Residential Real Estate $ 546 $ 42 $ - $ 588 $ 1,498 $ 145,191 $ 147,277 Total Acquired Loans $ 1,165 $ 372 $ 15 $ 1,552 $ 2,115 $ 318,924 $ 322,591 Total Loans $ 26,641 $ 6,341 $ 5,085 $ 38,067 $ 25,487 $ 6,824,155 $ 6,887,709 There were no material commitments to extend further credit to borrowers with nonperforming loans as of June 30, 2019 and December 31, 2018. Impaired Loans The methodology used to establish the allowance for loan losses on impaired loans incorporates specific allocations on loans analyzed individually. Classified loans, including all troubled debt restructured loans (“TDRs”) and nonaccrual Commercial loans that are graded Substandard, Doubtful or Loss, with outstanding balances of $750 thousand or more are evaluated for impairment through the Company’s quarterly status review process. The Company considers Commercial loans less than $750 thousand to be homogeneous loans. In determining that we will be unable to collect all principal and/or interest payments due in accordance with the contractual terms of the loan agreements, we consider factors such as payment history and changes in the financial condition of individual borrowers, local economic conditions, historical loss experience and the conditions of the various markets in which the collateral may be liquidated. For loans that are identified as impaired, impairment is measured by one of three methods: 1) the fair value of collateral less cost to sell, 2) present value of expected future cash flows or 3) the loan’s observable market price. These impaired loans are reviewed on a quarterly basis for changes in the level of impairment. Impaired amounts are charged off immediately if such amounts are determined by management to be uncollectable. Any change to the previously recognized impairment loss is recognized as a component of the provision for loan losses. The following table provides information on loans specifically evaluated for impairment: June 30, 2019 December 31, 2018 (In thousands) Recorded Investment Balance (Book) Unpaid Principal Balance (Legal) Related Allowance Recorded Investment Balance (Book) Unpaid Principal Balance (Legal) Related Allowance Originated With no related allowance recorded: Commercial Loans: C&I $ 119 $ 363 $ $ 228 $ 497 $ CRE 4,181 6,195 4,312 6,330 Business Banking 1,011 1,961 1,013 2,001 Total Commercial Loans $ 5,311 $ 8,519 $ 5,553 $ 8,828 Consumer Loans: Dealer Finance $ 232 $ 327 $ 143 $ 241 Direct 7,442 9,547 7,744 9,831 Total Consumer Loans $ 7,674 $ 9,874 $ 7,887 $ 10,072 Residential Real Estate $ 7,495 $ 10,190 $ 6,905 $ 9,414 Total $ 20,480 $ 28,583 $ 20,345 $ 28,314 With an allowance recorded: Commercial Loans: C&I $ 111 $ 118 $ 11 $ 233 $ 238 $ 25 Total Commercial Loans $ 111 $ 118 $ 11 $ 233 $ 238 $ 25 Total Loans $ 20,591 $ 28,701 $ 11 $ 20,578 $ 28,552 $ 25 There were no acquired impaired loans specifically evaluated for impairment as of June 30, 2019 or December 31, 2018. The following tables summarize the average recorded investments on loans specifically evaluated for impairment and the interest income recognized: For the Three Months Ended June 30, 2019 June 30, 2018 (In thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Originated Commercial Loans: C&I $ 326 $ - $ 447 $ 1 CRE 4,212 31 3,882 32 Business Banking 1,090 5 1,044 3 Total Commercial Loans $ 5,628 $ 36 $ 5,373 $ 36 Consumer Loans: Dealer Finance $ 221 $ 4 $ 194 $ 1 Direct 7,553 98 7,952 106 Total Consumer Loans $ 7,774 $ 102 $ 8,146 $ 107 Residential Real Estate $ 7,455 $ 82 $ 6,738 $ 71 Total Originated $ 20,857 $ 220 $ 20,257 $ 214 Total Loans $ 20,857 $ 220 $ 20,257 $ 214 For the Six Months Ended June 30, 2019 June 30, 2018 (In thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Originated Commercial Loans: C&I $ 383 $ 1 $ 457 $ 1 CRE 4,248 61 4,154 64 Business Banking 1,159 11 988 8 Total Commercial Loans $ 5,790 $ 73 $ 5,599 $ 73 Consumer Loans: Dealer Finance $ 198 $ 6 $ 188 $ 4 Direct 7,636 196 8,066 215 Total Consumer Loans $ 7,834 $ 202 $ 8,254 $ 219 Residential Real Estate $ 7,323 $ 159 $ 6,815 $ 144 Total Originated $ 20,947 $ 434 $ 20,668 $ 436 Total Loans $ 20,947 $ 434 $ 20,668 $ 436 Credit Quality Indicators The Company has developed an internal loan grading system to evaluate and quantify the Company’s loan portfolio with respect to quality and risk. The system focuses on, among other things, financial strength of borrowers, experience and depth of borrower’s management, primary and secondary sources of repayment, payment history, nature of the business and outlook on particular industries. The internal grading system enables the Company to monitor the quality of the entire loan portfolio on a consistent basis and provides management with an early warning system, enabling recognition and response to problem loans and potential problem loans. Commercial Grading System For C&I and CRE loans, the Company uses a grading system that relies on quantifiable and measurable characteristics when available. This would include comparison of financial strength to available industry averages, comparison of transaction factors (loan terms and conditions) to loan policy and comparison of credit history to stated repayment terms and industry averages. Some grading factors are necessarily more subjective such as economic and industry factors, regulatory environment and management. C&I and CRE loans are graded Doubtful, Substandard, Special Mention and Pass. ● Doubtful A Doubtful loan has a high probability of total or substantial loss, but because of specific pending events that may strengthen the asset, its classification as a loss is deferred. Doubtful borrowers are usually in default, lack adequate liquidity or capital and lack the resources necessary to remain an operating entity. Pending events can include mergers, acquisitions, liquidations, capital injections, the perfection of liens on additional collateral, the valuation of collateral and refinancing. Generally, pending events should be resolved within a relatively short period and the ratings will be adjusted based on the new information. Nonaccrual treatment is required for Doubtful assets because of the high probability of loss. ● Substandard Substandard loans have a high probability of payment default or they have other well-defined weaknesses. They require more intensive supervision by bank management. Substandard loans are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. For some Substandard loans, the likelihood of full collection of interest and principal may be in doubt and those loans should be placed on nonaccrual. Although Substandard assets in the aggregate will have a distinct potential for loss, an individual asset’s loss potential does not have to be distinct for the asset to be rated Substandard. ● Special Mention Special Mention loans have potential weaknesses that may, if not checked or corrected, weaken the asset or inadequately protect the Company’s position at some future date. These loans pose elevated risk, but their weakness does not yet justify a Substandard classification. Borrowers may be experiencing adverse operating trends (i.e., declining revenues or margins) or may be struggling with an ill-proportioned balance sheet (i.e., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a Special Mention rating. Although a Special Mention loan has a higher probability of default than a Pass asset, its default is not imminent. ● Pass Loans graded as Pass encompass all loans not graded as Doubtful, Substandard or Special Mention. Pass loans are in compliance with loan covenants and payments are generally made as agreed. Pass loans range from superior quality to fair quality. Business Banking Grading System Business Banking loans are graded as either Classified or Non-classified: ● Classified Classified loans are inadequately protected by the current worth and paying capacity of the obligor or, if applicable, the collateral pledged. These loans have a well-defined weakness or weaknesses, that jeopardize the liquidation of the debt or in some cases make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Classified loans have a high probability of payment default or total substantial loss. These loans require more intensive supervision by management and are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. Classified loans where the full collection of interest and principal is in doubt are considered to have a nonaccrual status. In some cases, Classified loans are considered uncollectable and of such little value that their continuance as assets is not warranted. ● Non-classified Loans graded as Non-classified encompass all loans not graded as Classified. Payments on non-classified loans are generally made as agreed. Consumer and Residential Real Estate Grading System Consumer and Residential Real Estate loans are graded as either Nonperforming or Performing. ● Nonperforming Nonperforming loans are loans that are 1) over 90 days past due and interest is still accruing or 2) on nonaccrual status. ● Performing The following tables illustrate the Company’s credit quality by loan class: (In thousands) As of June 30, 2019 Originated Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 799,988 $ 1,750,029 $ 2,550,017 Special Mention 30,012 33,912 63,924 Substandard 39,756 48,562 88,318 Total $ 869,756 $ 1,832,503 $ 2,702,259 Acquired Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 28,479 $ 75,768 $ 104,247 Special Mention 1,686 - 1,686 Substandard 2,874 594 3,468 Total $ 33,039 $ 76,362 $ 109,401 Consumer Credit Exposure By Payment Activity: Direct Total Performing $ 27,466 $ 27,466 Nonperforming 116 116 Total $ 27,582 $ 27,582 (In thousands) As of December 31, 2018 Originated Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 796,778 $ 1,681,330 $ 2,478,108 Special Mention 11,348 13,894 25,242 Substandard 39,993 46,006 85,999 Total $ 848,119 $ 1,741,230 $ 2,589,349 Acquired Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 23,283 $ 83,762 $ 107,045 Special Mention 2,831 92 2,923 Substandard 10 638 648 Total $ 26,124 $ 84,492 $ 110,616 Troubled Debt Restructured Loans When the Company modifies a loan in a troubled debt restructuring, such modifications generally include one or a combination of the following: an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; temporary reduction in the interest rate; or change in scheduled payment amount. Residential Real Estate and Consumer TDRs occurring during 2019 and 2018 were due to the reduction in the interest rate or extension of the term. Commercial TDRs during 2019 and 2018 were both a reduction of the interest rate or change in terms. When the Company modifies a loan in a troubled debt restructuring, management measures for impairment, if any, based on the present value of the expected future cash flows, discounted at the contractual interest rate of the original loan agreement, except when the sole (remaining) source of repayment for the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs. If management determines that the value of the modified loan is less than the recorded investment in the loan an impairment charge would be recognized. The following tables illustrate the recorded investment and number of modifications for modified loans, including the recorded investment in the loans prior to a modification and the recorded investment in the loans after restructuring: Three Months Ended June 30, 2019 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Commercial Loans: Business Banking - $ - $ - 1 $ 6 $ 5 Total Commercial Loans - $ - $ - 1 $ 6 $ 5 Consumer Loans: Dealer Finance 4 $ 60 $ 60 1 $ 13 $ 13 Direct 2 68 77 - - - Total Consumer Loans 6 $ 128 $ 137 1 $ 13 $ 13 Residential Real Estate 2 $ 369 $ 381 - $ - $ - Total Troubled Debt Restructurings 8 $ 497 $ 518 2 $ 19 $ 18 Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Commercial Loans: C&I 1 $ 65 $ 65 - $ - $ - Business Banking 2 388 388 3 369 371 Total Commercial Loans 3 $ 453 $ 453 3 $ 369 $ 371 Consumer Loans: Dealer Finance 9 $ 134 $ 134 7 $ 95 $ 94 Direct 8 388 398 2 41 41 Total Consumer Loans 17 $ 522 $ 532 9 $ 136 $ 135 Residential Real Estate 8 $ 757 $ 786 5 $ 323 $ 323 Total Troubled Debt Restructurings 28 $ 1,732 $ 1,771 17 $ 828 $ 829 The following tables illustrate the recorded investment and number of modifications for TDRs where a concession has been made and subsequently defaulted during the period: Three Months Ended June 30, 2019 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial Loans: Business Banking - $ - 1 $ 58 Total Commercial Loans - $ - 1 $ 58 Consumer Loans: Direct 14 $ 496 13 $ 495 Total Consumer Loans 14 $ 496 13 $ 495 Residential Real Estate 8 $ 429 7 $ 599 Total Troubled Debt Restructurings 22 $ 925 21 $ 1,152 Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial Loans: Business Banking - $ - 2 $ 258 Total Commercial Loans - $ - 2 $ 258 Consumer Loans: Dealer Finance 2 $ 17 - $ - Direct 19 958 25 1,260 Total Consumer Loans 21 $ 975 25 $ 1,260 Residential Real Estate 13 $ 644 13 $ 907 Total Troubled Debt Restructurings 34 $ 1,619 40 $ 2,425

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	5. Leases Operating leases in which we are the lessee are recorded as operating lease right of use (“ROU”) assets and operating lease liabilities, included in other assets and other liabilities, respectively, on the unaudited interim consolidated balance sheets. The Company does not have any significant finance leases in which we are the lessee as of June 30, 2019 and December 31, 2018. Operating lease ROU assets represent the Company’s right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using a discount rate that represents the Company’s incremental borrowing rate at the lease commencement date. ROU assets are further adjusted for lease incentives. Operating lease expense, which is comprised of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term, and is recorded in occupancy expense in the unaudited interim consolidated statements of income. We have made a policy election to exclude the recognition requirements to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in profit or loss on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes and insurance are not included in the measurement of the lease liability since they are generally able to be segregated. Our leases relate primarily to office space and bank branches, and some contain options to renew the lease. These options to renew are generally not considered reasonably certain to exercise, and are therefore not included in the lease term until such time that the option to renew is reasonably certain. As of June 30, 2019, operating lease ROU assets and liabilities were $34.6 million and $37.1 million, respectively. The table below summarizes our net lease cost: (In thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost $ 1,791 $ 3,590 Variable lease cost 581 1,258 Short-term lease cost 87 177 Sublease income (112 ) (213 ) Total operating lease cost $ 2,347 $ 4,812 (In thousands) 2019 $ 3,663 2020 7,032 2021 6,184 2022 5,345 2023 4,523 Thereafter 15,432 Total lease payments $ 42,179 Less: interest (5,044 ) Present value of lease liabilities $ 37,135 The following table shows the weighted average remaining operating lease term, the weighted average discount rate and supplemental information on the unaudited interim consolidated statements of cash flows for operating leases: (In thousands except for percent and period data) June 30, 2019 Weighted average remaining lease term, in years 8.09 Weighted average discount rate 3.03 % Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,070 ROU assets obtained in exchange for lease liabilities 37,749 As of June 30, 2019 there are no new significant leases that have not yet commenced. The following table shows the future minimum rental payments related to non-cancelable operating leases with original terms of one year or more as of December 31, 2018. (In thousands) 2019 $ 6,890 2020 6,467 2021 5,613 2022 4,773 2023 3,972 Thereafter 13,869 Total $ 41,584

Defined Benefit Post-Retirement

Defined Benefit Post-Retirement Plans	6 Months Ended
	Jun. 30, 2019
Defined Benefit Post-Retirement Plans [Abstract]
Defined Benefit Post-Retirement Plans	6. Defined Benefit Post-Retirement Plans The Company has a qualified, noncontributory, defined benefit pension plan (“the Plan”) covering substantially all of its employees at June 30, 2019. Benefits paid from the plan are based on age, years of service, compensation, social security benefits and are determined in accordance with defined formulas. The Company’s policy is to fund the Plan in accordance with Employee Retirement Income Security Act of 1974 standards. Assets of the Plan are invested in publicly traded stocks and mutual funds. In addition to the Plan, the Company provides supplemental employee retirement plans to certain current and former executives. The Company also assumed supplemental retirement plans for former executives of Alliance Financial Corporation (“Alliance”) when the Company acquired Alliance. These supplemental employee retirement plans and the Plan are collectively referred to herein as “Pension Benefits.” In addition, the Company provides certain health care benefits for retired employees. Benefits were accrued over the employees’ active service period. Only employees that were employed by the Company on or before January 1, 2000 are eligible to receive post-retirement health care benefits. In addition, the Company assumed post-retirement medical life insurance benefits for certain Alliance employees, retirees and their spouses, if applicable, in the Alliance acquisition. These post-retirement benefits are referred to herein as “Other Benefits.” The Company made no voluntary contributions to the pension and other benefits plans during the three and six months ended June 30, 2019 and 2018. The components of expense for Pension Benefits and Other Benefits are set forth below: Pension Benefits Other Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2019 2018 2019 2018 Components of net periodic cost (benefit): Service cost $ 435 $ 420 $ 2 $ 3 Interest cost 981 920 81 82 Expected return on plan assets (1,873 ) (2,123 ) - - Net amortization 639 251 18 44 Total net periodic cost (benefit) $ 182 $ (532 ) $ 101 $ 129 Pension Benefits Other Benefits Six Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Components of net periodic cost (benefit): Service cost $ 870 $ 840 $ 4 $ 6 Interest cost 1,962 1,840 162 164 Expected return on plan assets (3,746 ) (4,246 ) - - Net amortization 1,278 502 35 88 Total net periodic cost (benefit) $ 364 $ (1,064 ) $ 201 $ 258 The service cost component of the net periodic cost (benefit) is included in Salaries and Employee Benefits and the interest cost, expected return on plan assets and net amortization components are included in Other Noninterest Expense on the unaudited interim consolidated statements of income.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	7. Earnings Per Share Basic earnings per share (“EPS”) excludes dilution and is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity (such as the Company’s dilutive stock options and restricted stock units). The following is a reconciliation of basic and diluted EPS for the periods presented in the unaudited interim consolidated statements of income: Three Months Ended June 30, (In thousands, except per share data) 2019 2018 Basic EPS: Weighted average common shares outstanding 43,809 43,699 Net income available to common stockholders $ 30,555 $ 28,121 Basic EPS $ 0.70 $ 0.64 Diluted EPS: Weighted average common shares outstanding 43,809 43,699 Dilutive effect of common stock options and restricted stock 311 318 Weighted average common shares and common share equivalents 44,120 44,017 Net income available to common stockholders $ 30,555 $ 28,121 Diluted EPS $ 0.69 $ 0.64 Six Months Ended June 30, (In thousands, except per share data) 2019 2018 Basic EPS: Weighted average common shares outstanding 43,797 43,681 Net income available to common stockholders $ 59,682 $ 54,107 Basic EPS $ 1.36 $ 1.24 Diluted EPS: Weighted average common shares outstanding 43,797 43,681 Dilutive effect of common stock options and restricted stock 300 311 Weighted average common shares and common share equivalents 44,097 43,992 Net income available to common stockholders $ 59,682 $ 54,107 Diluted EPS $ 1.35 $ 1.23 There were 1,500 stock options for the quarters ended June 30, 2019 and June 30, 2018 There were stock options for the six months ended June 30, 2019 and June 30, 2018, that were not considered in the calculation of diluted EPS since the stock options’ exercise price was greater than the average market price during these periods.

Reclassification Adjustments Ou

Reclassification Adjustments Out of Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2019
Reclassification Adjustments Out of Other Comprehensive Income (Loss) [Abstract]
Reclassification Adjustments Out of Other Comprehensive Income (Loss)	8. Reclassification Adjustments Out of Other Comprehensive Income (Loss) The following table summarizes the reclassification adjustments out of accumulated other comprehensive income (loss) (“AOCI”): Detail About AOCI Components Amount Reclassified From AOCI Affected Line Item in the Consolidated Statement of Comprehensive Income (Loss) Three Months Ended (In thousands) June 30, 2019 June 30, 2018 AFS securities: Amortization of unrealized gains related to securities transfer $ 199 $ 177 Interest income Tax effect $ (50 ) $ (44 ) Income tax (benefit) Net of tax $ 149 $ 133 Cash flow hedges: Net unrealized (gains) on cash flow hedges reclassified to interest expense $ (738 ) $ (540 ) Interest expense Tax effect $ 185 $ 135 Income tax expense Net of tax $ (553 ) $ (405 ) Pension and other benefits: Amortization of net losses $ 633 $ 273 Other noninterest expense Amortization of prior service costs 24 22 Other noninterest expense Tax effect $ (164 ) $ (74 ) Income tax (benefit) Net of tax $ 493 $ 221 Total reclassifications, net of tax $ 89 $ (51 ) Detail About AOCI Components Amount Reclassified From AOCI Affected Line item in the Consolidated Statement of Comprehensive Income (Loss) Six Months Ended (In thousands) June 30, 2019 June 30, 2018 AFS securities: Losses on AFS securities $ 99 $ - Net securities gains Amortization of unrealized gains related to securities transfer 366 365 Interest income Tax effect $ (117 ) $ (91 ) Income tax (benefit) Net of tax $ 348 $ 274 Cash flow hedges: Net unrealized (gains) on cash flow hedges reclassified to interest expense $ (1,537 ) $ (899 ) Interest expense Tax effect $ 385 $ 225 Income tax expense Net of tax $ (1,152 ) $ (674 ) Pension and other benefits: Amortization of net losses $ 1,267 $ 546 Other noninterest expense Amortization of prior service costs 46 44 Other noninterest expense Tax effect $ (328 ) $ (148 ) Income tax (benefit) Net of tax $ 985 $ 442 Total reclassifications, net of tax $ 181 $ 42

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities [Abstract]
Derivative Instruments and Hedging Activities	9. Derivative Instruments 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, primarily by managing the amount, sources and duration of its assets and liabilities and through the use of derivative instruments. 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 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 fixed rate borrowings. The Company also has interest rate derivatives that result from a service provided to certain qualifying customers and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. The Company manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions. Derivatives Not Designated as Hedging Instruments The Company enters into interest rate swaps to facilitate customer transactions and meet their financing needs. These swaps are considered derivatives, but are not designated in hedging relationships. These instruments have interest rate and credit risk associated with them. To mitigate the interest rate risk, the Company enters into offsetting interest rate swaps with counterparties. The counterparty swaps are also considered derivatives and are also not designated in hedging relationships. Interest rate swaps are recorded within other assets or other liabilities on the consolidated balance sheet at their estimated fair value. Changes to the fair value of assets and liabilities arising from these derivatives are included, net, in other operating income in the consolidated statement of income. As of June 30, 2019 the Company had ten risk participation agreements with financial institution counterparties for interest rate swaps related to participated loans. The fair values included in other assets and other liabilities on the unaudited interim consolidated balance sheet applicable to these agreements amounts to $69 thousand and $93 thousand, respectively as of June 30, 2019. As of December 31, 2018 the Company had nine risk participation agreements, with the fair values included in other assets and other liabilities on the unaudited interim consolidated balance sheet of $36 thousand and $17 thousand, respectively. Risk participation agreements provide credit protection to the financial institution that originated the swap transaction should the borrower fail to perform on its obligation. The Company enters into both risk participation agreements in which it purchases credit protection from other financial institutions and those in which it provides credit protection to other financial institutions. Derivatives Designated as Hedging Instruments The Company has entered into interest rate swaps to modify the interest rate characteristics of certain short-term Federal Home Loan Bank (“FHLB”) advances from variable rate to fixed rate in order to reduce the impact of changes in future cash flows due to market interest rate changes. These agreements are designated as cash flow hedges. The following table depicts the fair value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements: June 30, December 31, (In thousands) 2019 2018 Derivatives Not Designated as Hedging Instruments: Fair value adjustment included in other assets and other liabilities Interest rate derivatives $ 38,454 $ 17,572 Notional amount: Interest rate derivatives 757,614 653,369 Risk participation agreements 73,141 70,785 Derivatives Designated as Hedging Instruments: Fair value adjustment included in other assets Interest rate derivatives 521 2,428 Fair value adjustment included in other liabilities Interest rate derivatives 18 - Notional amount: Interest rate derivatives 150,000 225,000 For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in AOCI and subsequently reclassified into interest expense in the same period during which the hedge transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s short-term rate borrowings. During the next twelve months, the Company estimates that an additional $0.5 million will be reclassified from AOCI as a reduction to interest expense. The following table indicates the effect of cash flow hedge accounting on AOCI and on the unaudited interim consolidated statement of income: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Derivatives Designated as Hedging Instruments: Interest rate derivatives - included component Amount of (loss) or gain recognized in OCI $ (314 ) $ 424 (484 ) $ 1,472 Amount of (gain) reclassified from AOCI into interest expense (738 ) (540 ) (1,537 ) (899 ) The following table indicates the gain or loss recognized in income on derivatives not designated as a hedging relationship: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Derivatives Not Designated as Hedging Instruments: Increase in other income $ 19 $ 320 $ 106 $ 123

Fair Value Measurements and Fai

Fair Value Measurements and Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2019
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value Measurements and Fair Value of Financial Instruments	10. Fair Value Measurements and Fair Value of Financial Instruments GAAP states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value measurements are not adjusted for transaction costs. A fair value hierarchy exists within GAAP that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The types of instruments valued based on quoted market prices in active markets include most U.S. government and agency securities, many other sovereign government obligations, liquid mortgage products, active listed equities and most money market securities. Such instruments are generally classified within Level 1 or Level 2 of the fair value hierarchy. The Company does not adjust the quoted prices for such instruments. The types of instruments valued based on quoted prices in markets that are not active, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency include most investment-grade and high-yield corporate bonds, less liquid mortgage products, less liquid agency securities, less liquid listed equities, state, municipal and provincial obligations and certain physical commodities. Such instruments are generally classified within Level 2 of the fair value hierarchy. Certain common equity securities are reported at fair value utilizing Level 1 inputs (exchange quoted prices). Other investment securities are reported at fair value utilizing Level 1 and Level 2 inputs. The prices for Level 2 instruments are obtained through an independent pricing service or dealer market participants with whom the Company has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Management reviews the methodologies used in pricing the securities by its third party providers. Level 3 is for positions that are not traded in active markets or are subject to transfer restrictions. Valuations are adjusted to reflect illiquidity and/or non-transferability and such adjustments are generally based on available market evidence. In the absence of such evidence, management’s best estimate will be used. Management’s best estimate consists of both internal and external support on certain Level 3 investments. Subsequent to inception, management only changes Level 3 inputs and assumptions when corroborated by evidence such as transactions in similar instruments, completed or pending third-party transactions in the underlying investment or comparable entities, subsequent rounds of financing, recapitalizations and other transactions across the capital structure, offerings in the equity or debt markets and changes in financial ratios or cash flows. For the three and six months ended June 30, 2019 the Company made no transfers of assets between the levels of the fair value hierarchy. For the year ended December 31, 2018, the Company made no transfer of assets from Level 1 to Level 2 and made a $4.0 million transfer from Level 2 to Level 1. The following tables set forth the Company’s financial assets and liabilities measured on a recurring basis that were accounted for at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement: (In thousands) Level 1 Level 2 Level 3 June 30, 2019 Assets: AFS securities: Federal agency $ - $ 52,837 $ - $ 52,837 State & municipal - 9 - 9 Mortgage-backed - 499,227 - 499,227 Collateralized mortgage obligations - 427,623 - 427,623 Total AFS securities $ - $ 979,696 $ - $ 979,696 Equity securities 22,298 4,000 - 26,298 Derivatives - 39,044 - 39,044 Total $ 22,298 $ 1,022,740 $ - $ 1,045,038 Liabilities: Derivatives $ - $ 38,565 $ - $ 38,565 Total $ - $ 38,565 $ - $ 38,565 (In thousands) Level 1 Level 2 Level 3 December 31, 2018 Assets: AFS securities: Federal agency $ - $ 84,299 $ - $ 84,299 State & municipal - 29,915 - 29,915 Mortgage-backed - 512,295 - 512,295 Collateralized mortgage obligations - 371,987 - 371,987 Total AFS securities $ - $ 998,496 $ - $ 998,496 Equity securities 19,053 4,000 - 23,053 Derivatives - 20,000 - 20,000 Total $ 19,053 $ 1,022,496 $ - $ 1,041,549 Liabilities: Derivatives $ - $ 17,572 $ - $ 17,572 Total $ - $ 17,572 $ - $ 17,572 GAAP requires disclosure of assets and liabilities measured and recorded at fair value on a non-recurring basis such as goodwill, loans held for sale, other real estate owned, collateral-dependent impaired loans, mortgage servicing rights and HTM securities. The only non-recurring fair value measurements recorded during the three and six month periods ended June 30, 2019 and the year ended December 31, 2018 were related to impaired loans and write-downs of other real estate owned. The Company uses the fair value of underlying collateral, less costs to sell, to estimate the specific reserves for collateral dependent impaired loans. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses ranging from 10% to 35%. Based on the valuation techniques used, the fair value measurements for collateral dependent impaired loans are classified as Level 3. As of June 30, 2019 and December 31, 2018, the Company had collateral dependent loans with a carrying value of $ million and $ million, respectively, which had specific reserves included in the allowance for loan losses of $ thousand and $ thousand, respectively The following table sets forth information with regard to estimated fair values of financial instruments. This table excludes financial instruments for which the carrying amount approximates fair value. Financial instruments for which the fair value approximates carrying value include cash and cash equivalents, AFS securities, equity securities, accrued interest receivable, non-maturity deposits, short-term borrowings, accrued interest payable and derivatives. June 30, 2019 December 31, 2018 (In thousands) Fair Value Hierarchy Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Financial assets: HTM securities 2 $ 744,601 $ 754,995 $ 783,599 $ 778,675 Net loans 3 6,906,770 7,199,147 6,822,147 6,754,460 Financial liabilities: Time deposits 2 $ 976,567 $ 973,822 $ 930,678 $ 920,534 Long-term debt 2 84,267 84,878 73,724 73,927 Junior subordinated debt 2 101,196 104,914 101,196 100,114 Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, the Company has a substantial trust and investment management operation that contributes net fee income annually. The trust and investment management operation is not considered a financial instrument and its value has not been incorporated into the fair value estimates. Other significant assets and liabilities include the benefits resulting from the low-cost funding of deposit liabilities as compared to the cost of borrowing funds in the market and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimate of fair value. HTM Securities The fair value of the Company’s HTM securities is primarily measured using information from a third party pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Net Loans The fair value of the Company’s loans was estimated in accordance with the exit price notion as defined by Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) 820, Fair Value Measurement Time Deposits The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company’s time deposit liabilities do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value. Long-Term Debt The fair value of long-term debt was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. Junior Subordinated Debt The fair value of junior subordinated debt has been estimated using a discounted cash flow analysis.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	11. Commitments and Contingencies The Company is a party to certain financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, unused lines of credit, standby letters of credit and certain agricultural real estate loans sold to investors with recourse, with the sold portion having a government guarantee that is assignable back to the Company upon repurchase of the loan in the event of default. The Company’s exposure to credit loss in the event of nonperformance by the other party to the commitments to extend credit, unused lines of credit, standby letters of credit and loans sold with recourse is represented by the contractual amount of those investments. The credit risk associated with commitments to extend credit and standby and commercial letters of credit is essentially the same as that involved with extending loans to customers and is subject to normal credit policies. Collateral may be obtained based on management’s assessment of the customer’s credit worthiness. Commitments to extend credit and unused lines of credit totaled $1.9 billion at June 30, 2019 and $1.7 billion at December 31, 2018. Since many loan commitments, standby letters of credit and guarantees and indemnification contracts expire without being funded in whole or in part, the contract amounts are not necessarily indicative of future cash flows. The Company does not issue any guarantees that would require liability-recognition or disclosure, other than its standby letters of credit. The Company guarantees the obligations or performance of customers by issuing standby letters of credit to third parties. These standby letters of credit are frequently issued in support of third party debt, such as corporate debt issuances, industrial revenue bonds and municipal securities. The risk involved in issuing standby letters of credit is essentially the same as the credit risk involved in extending loan facilities to customers and letters of credit are subject to the same credit origination, portfolio maintenance and management procedures in effect to monitor other credit and off-balance sheet products. Typically, these instruments have one year expirations with an option to renew upon annual review; therefore, the total amounts do not necessarily represent future cash requirements. Standby letters of credit totaled $31.5 million at June 30, 2019 and $41.2 million at December 31, 2018. As of June 30, 2019 and December 31, 2018, the fair value of the Company’s standby letters of credit was not significant.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2019
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	12. Recent Accounting Pronouncements Recently Adopted Accounting Standards In February 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842 Codification Improvements to Topic 842, Leases Targeted Improvements The Company adopted ASU 2016-02 as of January 1, 2019 and elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allows the carryforward of the historical lease classification, the practical expedient related to land easements and the hindsight practical expedient to determine the reasonably certain lease term for existing leases. The Company made an accounting policy election to keep leases with an initial term of 12 months or less off of the balance sheet and recognize those lease payments in the consolidated statements of income on a straight-line basis over the lease term. The adoption of ASU 2016-02 and related transition guidance resulted in the recognition of additional net lease assets and liabilities of approximately $34 million and $37 million, respectively, as of January 1, 2019. The standard did not materially affect our consolidated net earnings or regulatory capital ratios. Refer to Note 5, Leases for more information. In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20) In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815) - Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes Accounting Standards Issued Not Yet Adopted In August 2018, the FASB issued ASU 2018-13, Fair value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair value Measurement In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In Financial Instruments - Credit Losses (Topic 326): Targeted Transition Relief . In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits – Defined Benefit Plans - General (Subtopic 715-20) In August 2018, the FASB issued ASU 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) – Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract

Description of Business (Polici

Description of Business (Policies)	6 Months Ended
	Jun. 30, 2019
Description of Business [Abstract]
Nature of Operations	NBT Bancorp Inc. (the “Registrant” or the “Company”) is a registered financial holding company incorporated in the state of Delaware in 1986, with its principal headquarters located in Norwich, New York. The principal assets of the Registrant consist of all of the outstanding shares of common stock of its subsidiaries, including: NBT Bank, National Association (the “Bank”), NBT Financial Services, Inc. (“NBT Financial”), NBT Holdings, Inc. (“NBT Holdings”), CNBF Capital Trust I, NBT Statutory Trust I, NBT Statutory Trust II, Alliance Financial Capital Trust I and Alliance Financial Capital Trust II (collectively, the “Trusts”). The Company’s principal sources of revenue are the management fees and dividends it receives from the Bank, NBT Financial and NBT Holdings. The Company’s business, primarily conducted through the Bank, consists of providing commercial banking, retail banking and wealth management services primarily to customers in its market area, which includes central and upstate New York, northeastern Pennsylvania, southern New Hampshire, western Massachusetts, Vermont and the southern coastal Maine area. The Company has been, and intends to continue to be, a community-oriented financial institution offering a variety of financial services. The Company’s business philosophy is to operate as a community bank with local decision-making, providing a broad array of banking and financial services to retail, commercial and municipal customers.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Basis of Presentation [Abstract]
Basis of Presentation	The accompanying unaudited interim consolidated financial statements include the accounts of the Registrant and its wholly-owned subsidiaries, the Bank, NBT Financial and NBT Holdings. Collectively, the Registrant and its subsidiaries are referred to herein as “the Company.” The interim data includes all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of the results for the interim periods in accordance with generally accepted accounting principles in the United States of America (“GAAP”). These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2018 Annual Report on Form 10-K. The results of operations for the interim periods are not necessarily indicative of the results that may be expected for the full year or any other interim period. All material intercompany transactions have been eliminated in consolidation. Amounts previously reported in the consolidated financial statements are reclassified whenever necessary to conform to current period presentation. The Company has evaluated subsequent events for potential recognition and/or disclosure and there were none identified.

Securities (Policies)

Securities (Policies)	6 Months Ended
	Jun. 30, 2019
Securities [Abstract]
Investment, Policy	Declines in the fair value of HTM securities below their amortized cost, less any current period credit loss, that are deemed to be other-than-temporary are reflected in earnings as realized losses or in other comprehensive income (“OCI”). The classification is dependent upon whether the Company intends to sell the security, or whether it is more likely than not, that the Company will be required to sell the security before recovery. The other-than-temporary impairment (“OTTI”) shall be recognized in earnings equal to the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date. If the Company does not intend to sell the security and it is not more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss, the OTTI shall be separated into (i) the amount representing the credit loss and (ii) the amount related to all other factors. The amount of the total OTTI related to the credit loss shall be recognized in earnings. The amount of the total OTTI related to other factors shall be recognized in OCI, net of applicable taxes. In estimating OTTI losses, management considers, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer and (iii) the historical and implied volatility of the fair value of the security. Management has the intent to hold the securities classified as HTM until they mature, at which time it is believed the Company will receive full value for the securities. The unrealized losses on HTM debt securities are due to increases in market interest rates over yields at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. The fair value is expected to recover as the bond approaches its maturity date or repricing date or if market yields for such investments declines. Management also has the intent to hold and will not be required to sell, the debt securities classified as AFS for a period of time sufficient for a recovery of cost, which may be until maturity. The unrealized losses on AFS debt securities are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. When necessary, the Company has performed a discounted cash flow analysis to determine whether or not it will receive the contractual principal and interest on certain securities. For AFS debt securities, OTTI losses are recognized in earnings if the Company intends to sell the security. In other cases the Company considers the relevant factors noted above, as well as the Company’s intent and ability to retain its investment for a period of time sufficient to allow for any anticipated recovery in market value and whether evidence exists to support a realizable value equal to or greater than the cost basis. Any impairment loss on an equity security is equal to the full difference between the cost basis and the fair value of the security. Maturities of mortgage-backed, collateralized mortgage obligations and asset-backed securities are stated based on their estimated average lives. Actual maturities may differ from estimated average lives or contractual maturities because, in certain cases, borrowers have the right to call or prepay obligations with or without call or prepayment penalties.

Allowance for Loan Losses and_2

Allowance for Loan Losses and Credit Quality of Loans (Policies)	6 Months Ended
	Jun. 30, 2019
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Portfolio and Class Segments	Portfolio Class Commercial Loans Commercial and Industrial Commercial Real Estate Business Banking Consumer Loans Dealer Finance Specialty Lending Direct Residential Real Estate
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is maintained at a level estimated by management to provide adequately for probable incurred losses inherent in the current loan portfolio. The appropriateness of the allowance for loan losses is continuously monitored. It is assessed for appropriateness using a methodology designed to ensure the level of the allowance reasonably reflects the loan portfolio’s risk profile and can absorb all reasonably estimable credit losses inherent in the current loan portfolio. To develop and document a systematic methodology for determining the allowance for loan losses, the Company has divided the loan portfolio into three segments, each with different risk characteristics and methodologies for assessing risk. Those segments are further segregated between our loans accounted for under the amortized cost method (referred to as “originated” loans) and loans acquired in a business combination (referred to as “acquired” loans). Each portfolio segment is broken down into class segments where appropriate. Class segments contain unique measurement attributes, risk characteristics and methods for monitoring and assessing risk that are necessary to develop the allowance for loan losses. Unique characteristics such as borrower type, loan type, collateral type and risk characteristics define each class segment. The following table illustrates the portfolio and class segments for the Company’s loan portfolio: Commercial Loans The Company offers a variety of Commercial loan products. The Company’s underwriting analysis for commercial loans typically includes credit verification, independent appraisals, a review of the borrower’s financial condition and a detailed analysis of the borrower’s underlying cash flows. Commercial and Industrial (“C&I”) – Commercial Real Estate (“CRE”) – Business Banking - Consumer Loans The Company offers a variety of Consumer loan products including Dealer Finance, Specialty Lending and Direct loans. Dealer Finance – Specialty Lending – Direct – Residential Real Estate Residential real estate loans consist primarily of loans secured by a first or second mortgage on primary residences. We originate adjustable-rate and fixed-rate, one-to-four-family residential real estate loans for the construction, purchase or refinancing of a mortgage. These loans are collateralized by owner-occupied properties located in the Company’s market area. When market conditions are favorable, for longer term, fixed-rate residential real estate mortgages without escrow, the Company retains the servicing, but sells the right to receive principal and interest to Government-sponsored enterprises. This practice allows the Company to manage interest rate risk, liquidity risk and credit risk. Loans on one-to-four-family residential real estate are generally originated in amounts of no more than 85% of the purchase price or appraised value (whichever is lower) or have private mortgage insurance. Mortgage title insurance and hazard insurance are normally required. Construction loans have a unique risk, because they are secured by an incomplete dwelling. This risk is reduced through periodic site inspections, including one at each loan draw period. Allowance for Loan Loss Calculation For purposes of evaluating the adequacy of the allowance, the Company considers a number of significant factors that affect the collectability of the portfolio. For individually impaired loans, these include estimates of impairment, if any, which reflect the facts and circumstances that affect the likelihood of repayment of such loans as of the evaluation date. For homogeneous pools of loans, estimates of the Company’s exposure to credit loss reflect a current assessment of a number of factors, which could affect collectability. These factors include: past loss experience, size, trend, composition and nature of loans; changes in lending policies and procedures, including underwriting standards and collection, charge-offs and recoveries; trends experienced in nonperforming and delinquent loans; current economic conditions in the Company’s market; portfolio concentrations that may affect loss experienced across one or more components of the portfolio; the effect of external factors such as competition, legal and regulatory requirements; and the experience, ability and depth of lending management and staff. In addition, various regulatory agencies, as an integral component of their examination process, periodically review the Company’s allowance for loan losses. Such agencies may require the Company to make loan grade changes as well as recognize additions to the allowance based on their examinations. After a thorough consideration of the factors discussed above, any required additions or reductions to the allowance for loan losses are made periodically by charges or credits to the provision for loan losses. These charges are necessary to maintain the allowance at a level that management believes is reflective of overall level of incurred loss in the portfolio. While management uses available information to recognize losses on loans, additions and reductions of the allowance may fluctuate from one reporting period to another. These fluctuations are reflective of changes in risk associated with portfolio content or changes in management’s assessment of any or all of the determining factors discussed above. For acquired loans, to the extent that we experience deterioration in borrower credit quality resulting in a decrease in our expected cash flows subsequent to the acquisition of the loans, an allowance for loan losses is established based on our estimate of incurred losses at the balance sheet date. Credit Quality of Loans For all loan classes within the Company’s loan portfolio, loans are placed on nonaccrual status when timely collection of principal and/or interest in accordance with contractual terms is in doubt. Loans are transferred to nonaccrual status generally when principal or interest payments become ninety days delinquent, unless the loan is well secured and in the process of collection or sooner when management concludes circumstances indicate that borrowers may be unable to meet contractual principal or interest payments. When a loan is transferred to a nonaccrual status, all interest previously accrued in the current period but not collected is reversed against interest income in that period. Interest accrued in a prior period and not collected is charged-off against the allowance for loan losses. If ultimate repayment of a nonaccrual loan is expected, any payments received are applied in accordance with contractual terms. If ultimate repayment of principal is not expected, any payment received on a nonaccrual loan is applied to principal until ultimate repayment becomes expected. For all loan classes within the Company’s loan portfolio, nonaccrual loans are returned to accrual status when they become current as to principal and interest and demonstrate a period of performance under the contractual terms and, in the opinion of management, are fully collectible as to principal and interest. For loans in all portfolios, the principal amount is charged off in full or in part as soon as management determines, based on available facts, that the collection of principal in full or in part is improbable. For Commercial loans, management considers specific facts and circumstances relative to individual credits in making such a determination. For Consumer and Residential Real Estate loan classes, management uses specific guidance and thresholds from the Federal Financial Institutions Examination Council’s Uniform Retail Credit Classification and Account Management Policy. Impaired Loans The methodology used to establish the allowance for loan losses on impaired loans incorporates specific allocations on loans analyzed individually. Classified loans, including all troubled debt restructured loans (“TDRs”) and nonaccrual Commercial loans that are graded Substandard, Doubtful or Loss, with outstanding balances of $750 thousand or more are evaluated for impairment through the Company’s quarterly status review process. The Company considers Commercial loans less than $750 thousand to be homogeneous loans. In determining that we will be unable to collect all principal and/or interest payments due in accordance with the contractual terms of the loan agreements, we consider factors such as payment history and changes in the financial condition of individual borrowers, local economic conditions, historical loss experience and the conditions of the various markets in which the collateral may be liquidated. For loans that are identified as impaired, impairment is measured by one of three methods: 1) the fair value of collateral less cost to sell, 2) present value of expected future cash flows or 3) the loan’s observable market price. These impaired loans are reviewed on a quarterly basis for changes in the level of impairment. Impaired amounts are charged off immediately if such amounts are determined by management to be uncollectable. Any change to the previously recognized impairment loss is recognized as a component of the provision for loan losses. Credit Quality Indicators The Company has developed an internal loan grading system to evaluate and quantify the Company’s loan portfolio with respect to quality and risk. The system focuses on, among other things, financial strength of borrowers, experience and depth of borrower’s management, primary and secondary sources of repayment, payment history, nature of the business and outlook on particular industries. The internal grading system enables the Company to monitor the quality of the entire loan portfolio on a consistent basis and provides management with an early warning system, enabling recognition and response to problem loans and potential problem loans. Commercial Grading System For C&I and CRE loans, the Company uses a grading system that relies on quantifiable and measurable characteristics when available. This would include comparison of financial strength to available industry averages, comparison of transaction factors (loan terms and conditions) to loan policy and comparison of credit history to stated repayment terms and industry averages. Some grading factors are necessarily more subjective such as economic and industry factors, regulatory environment and management. C&I and CRE loans are graded Doubtful, Substandard, Special Mention and Pass. ● Doubtful A Doubtful loan has a high probability of total or substantial loss, but because of specific pending events that may strengthen the asset, its classification as a loss is deferred. Doubtful borrowers are usually in default, lack adequate liquidity or capital and lack the resources necessary to remain an operating entity. Pending events can include mergers, acquisitions, liquidations, capital injections, the perfection of liens on additional collateral, the valuation of collateral and refinancing. Generally, pending events should be resolved within a relatively short period and the ratings will be adjusted based on the new information. Nonaccrual treatment is required for Doubtful assets because of the high probability of loss. ● Substandard Substandard loans have a high probability of payment default or they have other well-defined weaknesses. They require more intensive supervision by bank management. Substandard loans are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. For some Substandard loans, the likelihood of full collection of interest and principal may be in doubt and those loans should be placed on nonaccrual. Although Substandard assets in the aggregate will have a distinct potential for loss, an individual asset’s loss potential does not have to be distinct for the asset to be rated Substandard. ● Special Mention Special Mention loans have potential weaknesses that may, if not checked or corrected, weaken the asset or inadequately protect the Company’s position at some future date. These loans pose elevated risk, but their weakness does not yet justify a Substandard classification. Borrowers may be experiencing adverse operating trends (i.e., declining revenues or margins) or may be struggling with an ill-proportioned balance sheet (i.e., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a Special Mention rating. Although a Special Mention loan has a higher probability of default than a Pass asset, its default is not imminent. ● Pass Loans graded as Pass encompass all loans not graded as Doubtful, Substandard or Special Mention. Pass loans are in compliance with loan covenants and payments are generally made as agreed. Pass loans range from superior quality to fair quality. Business Banking Grading System Business Banking loans are graded as either Classified or Non-classified: ● Classified Classified loans are inadequately protected by the current worth and paying capacity of the obligor or, if applicable, the collateral pledged. These loans have a well-defined weakness or weaknesses, that jeopardize the liquidation of the debt or in some cases make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Classified loans have a high probability of payment default or total substantial loss. These loans require more intensive supervision by management and are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity or marginal capitalization. Repayment may depend on collateral or other credit risk mitigants. Classified loans where the full collection of interest and principal is in doubt are considered to have a nonaccrual status. In some cases, Classified loans are considered uncollectable and of such little value that their continuance as assets is not warranted. ● Non-classified Loans graded as Non-classified encompass all loans not graded as Classified. Payments on non-classified loans are generally made as agreed. Consumer and Residential Real Estate Grading System Consumer and Residential Real Estate loans are graded as either Nonperforming or Performing. ● Nonperforming Nonperforming loans are loans that are 1) over 90 days past due and interest is still accruing or 2) on nonaccrual status. ● Performing All loans not meeting any of these criteria are considered Performing.
Troubled Debt Restructuring	Troubled Debt Restructured Loans When the Company modifies a loan in a troubled debt restructuring, such modifications generally include one or a combination of the following: an extension of the maturity date at a stated rate of interest lower than the current market rate for new debt with similar risk; temporary reduction in the interest rate; or change in scheduled payment amount. Residential Real Estate and Consumer TDRs occurring during 2019 and 2018 were due to the reduction in the interest rate or extension of the term. Commercial TDRs during 2019 and 2018 were both a reduction of the interest rate or change in terms. When the Company modifies a loan in a troubled debt restructuring, management measures for impairment, if any, based on the present value of the expected future cash flows, discounted at the contractual interest rate of the original loan agreement, except when the sole (remaining) source of repayment for the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs. If management determines that the value of the modified loan is less than the recorded investment in the loan an impairment charge would be recognized.

Leases (Policies)

Leases (Policies)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Operating Lease	Operating lease ROU assets represent the Company’s right to use an underlying asset during the lease term and operating lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and operating lease liabilities are recognized at lease commencement based on the present value of the remaining lease payments using a discount rate that represents the Company’s incremental borrowing rate at the lease commencement date. ROU assets are further adjusted for lease incentives. Operating lease expense, which is comprised of amortization of the ROU asset and the implicit interest accreted on the operating lease liability, is recognized on a straight-line basis over the lease term, and is recorded in occupancy expense in the unaudited interim consolidated statements of income. We have made a policy election to exclude the recognition requirements to all classes of leases with original terms of 12 months or less. Instead, the short-term lease payments are recognized in profit or loss on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes and insurance are not included in the measurement of the lease liability since they are generally able to be segregated.

Defined Benefit Post-Retireme_2

Defined Benefit Post-Retirement Plans (Policies)	6 Months Ended
	Jun. 30, 2019
Defined Benefit Post-Retirement Plans [Abstract]
Postemployment Benefit Plans, Policy	The Company has a qualified, noncontributory, defined benefit pension plan (“the Plan”) covering substantially all of its employees at June 30, 2019. Benefits paid from the plan are based on age, years of service, compensation, social security benefits and are determined in accordance with defined formulas. The Company’s policy is to fund the Plan in accordance with Employee Retirement Income Security Act of 1974 standards. Assets of the Plan are invested in publicly traded stocks and mutual funds. In addition to the Plan, the Company provides supplemental employee retirement plans to certain current and former executives. The Company also assumed supplemental retirement plans for former executives of Alliance Financial Corporation (“Alliance”) when the Company acquired Alliance. These supplemental employee retirement plans and the Plan are collectively referred to herein as “Pension Benefits.” In addition, the Company provides certain health care benefits for retired employees. Benefits were accrued over the employees’ active service period. Only employees that were employed by the Company on or before January 1, 2000 are eligible to receive post-retirement health care benefits. In addition, the Company assumed post-retirement medical life insurance benefits for certain Alliance employees, retirees and their spouses, if applicable, in the Alliance acquisition. These post-retirement benefits are referred to herein as “Other Benefits.” The Company made no voluntary contributions to the pension and other benefits plans during the three and six months ended June 30, 2019 and 2018.

Earnings Per Share (Policies)

Earnings Per Share (Policies)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Basic earnings per share (“EPS”) excludes dilution and is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity (such as the Company’s dilutive stock options and restricted stock units).

Fair Value Measurements and F_2

Fair Value Measurements and Fair Value of Financial Instruments (Policies)	6 Months Ended
	Jun. 30, 2019
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments, Policy	GAAP states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value measurements are not adjusted for transaction costs. A fair value hierarchy exists within GAAP that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 - Quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity). A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The types of instruments valued based on quoted market prices in active markets include most U.S. government and agency securities, many other sovereign government obligations, liquid mortgage products, active listed equities and most money market securities. Such instruments are generally classified within Level 1 or Level 2 of the fair value hierarchy. The Company does not adjust the quoted prices for such instruments. The types of instruments valued based on quoted prices in markets that are not active, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency include most investment-grade and high-yield corporate bonds, less liquid mortgage products, less liquid agency securities, less liquid listed equities, state, municipal and provincial obligations and certain physical commodities. Such instruments are generally classified within Level 2 of the fair value hierarchy. Certain common equity securities are reported at fair value utilizing Level 1 inputs (exchange quoted prices). Other investment securities are reported at fair value utilizing Level 1 and Level 2 inputs. The prices for Level 2 instruments are obtained through an independent pricing service or dealer market participants with whom the Company has historically transacted both purchases and sales of investment securities. Prices obtained from these sources include prices derived from market quotations and matrix pricing. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Management reviews the methodologies used in pricing the securities by its third party providers. Level 3 is for positions that are not traded in active markets or are subject to transfer restrictions. Valuations are adjusted to reflect illiquidity and/or non-transferability and such adjustments are generally based on available market evidence. In the absence of such evidence, management’s best estimate will be used. Management’s best estimate consists of both internal and external support on certain Level 3 investments. Subsequent to inception, management only changes Level 3 inputs and assumptions when corroborated by evidence such as transactions in similar instruments, completed or pending third-party transactions in the underlying investment or comparable entities, subsequent rounds of financing, recapitalizations and other transactions across the capital structure, offerings in the equity or debt markets and changes in financial ratios or cash flows. GAAP requires disclosure of assets and liabilities measured and recorded at fair value on a non-recurring basis such as goodwill, loans held for sale, other real estate owned, collateral-dependent impaired loans, mortgage servicing rights and HTM securities. The only non-recurring fair value measurements recorded during the three and six month periods ended June 30, 2019 and the year ended December 31, 2018 were related to impaired loans and write-downs of other real estate owned. The Company uses the fair value of underlying collateral, less costs to sell, to estimate the specific reserves for collateral dependent impaired loans. The appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses ranging from 10% to 35%. Based on the valuation techniques used, the fair value measurements for collateral dependent impaired loans are classified as Level 3. Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, the Company has a substantial trust and investment management operation that contributes net fee income annually. The trust and investment management operation is not considered a financial instrument and its value has not been incorporated into the fair value estimates. Other significant assets and liabilities include the benefits resulting from the low-cost funding of deposit liabilities as compared to the cost of borrowing funds in the market and premises and equipment. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimate of fair value. HTM Securities The fair value of the Company’s HTM securities is primarily measured using information from a third party pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the bond’s terms and conditions, among other things. Net Loans The fair value of the Company’s loans was estimated in accordance with the exit price notion as defined by Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) 820, Fair Value Measurement Time Deposits The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company’s time deposit liabilities do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value. Long-Term Debt The fair value of long-term debt was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. Junior Subordinated Debt The fair value of junior subordinated debt has been estimated using a discounted cash flow analysis.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2019
Recent Accounting Pronouncements [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In February 2016, the FASB issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842 Codification Improvements to Topic 842, Leases Targeted Improvements The Company adopted ASU 2016-02 as of January 1, 2019 and elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allows the carryforward of the historical lease classification, the practical expedient related to land easements and the hindsight practical expedient to determine the reasonably certain lease term for existing leases. The Company made an accounting policy election to keep leases with an initial term of 12 months or less off of the balance sheet and recognize those lease payments in the consolidated statements of income on a straight-line basis over the lease term. The adoption of ASU 2016-02 and related transition guidance resulted in the recognition of additional net lease assets and liabilities of approximately $34 million and $37 million, respectively, as of January 1, 2019. The standard did not materially affect our consolidated net earnings or regulatory capital ratios. Refer to Note 5, Leases for more information. In March 2017, the FASB issued ASU 2017-08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310-20) In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815) - Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes
Accounting Standards Issued Not Yet Adopted	Accounting Standards Issued Not Yet Adopted In August 2018, the FASB issued ASU 2018-13, Fair value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair value Measurement In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In Financial Instruments - Credit Losses (Topic 326): Targeted Transition Relief . In August 2018, the FASB issued ASU 2018-14, Compensation – Retirement Benefits – Defined Benefit Plans - General (Subtopic 715-20) In August 2018, the FASB issued ASU 2018-15, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) – Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2019
Securities [Abstract]
Amortized Cost, Estimated Fair Value and Unrealized Gains (Losses) of Available for Sale ("AFS") Securities	The amortized cost, estimated fair value and unrealized gains (losses) of available for sale (“AFS”) securities are as follows: (In thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value As of June 30, 2019 Federal agency $ 52,987 $ 28 $ 178 $ 52,837 State & municipal 9 - - 9 Mortgage-backed: Government-sponsored enterprises 458,878 3,624 666 461,836 U.S. government agency securities 36,447 955 11 37,391 Collateralized mortgage obligations: Government-sponsored enterprises 351,250 2,210 847 352,613 U.S. government agency securities 74,729 734 453 75,010 Total AFS securities $ 974,300 $ 7,551 $ 2,155 $ 979,696 As of December 31, 2018 Federal agency $ 84,982 $ 10 $ 693 $ 84,299 State & municipal 30,136 16 237 29,915 Mortgage-backed: Government-sponsored enterprises 493,225 439 10,354 483,310 U.S. government agency securities 29,190 270 475 28,985 Collateralized mortgage obligations: Government-sponsored enterprises 332,409 344 7,211 325,542 U.S. government agency securities 47,684 137 1,376 46,445 Total AFS securities $ 1,017,626 $ 1,216 $ 20,346 $ 998,496
Components of Net Realized Gains (Losses) on Sale of AFS Securities	The components of net realized gains (losses) on the sale of AFS securities are as follows. These amounts were reclassified out of AOCI and into earnings. There were sales of AFS securities during the three months ended June 30, 2019 and 2018. Six Months Ended June 30, (In thousands) 2019 2018 Gross realized gains $ 53 $ - Gross realized (losses) (152 ) - Net AFS realized (losses) $ (99 ) $ -
Amortized Cost, Estimated Fair Value, and Unrealized Gains (Losses) of Held to Maturity Securities	The amortized cost, estimated fair value and unrealized gains (losses) of held to maturity (“HTM”) securities are as follows: (In thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value As of June 30, 2019 Federal agency $ 19,996 $ 46 $ - $ 20,042 Mortgage-backed: Government-sponsored enterprises 163,049 2,334 484 164,899 U.S. government agency securities 14,530 921 - 15,451 Collateralized mortgage obligations: Government-sponsored enterprises 232,825 2,712 539 234,998 U.S. government agency securities 103,457 3,303 - 106,760 State & municipal 210,744 2,177 76 212,845 Total HTM securities $ 744,601 $ 11,493 $ 1,099 $ 754,995 As of December 31, 2018 Federal agency $ 19,995 $ 52 $ - $ 20,047 Mortgage-backed: Government-sponsored enterprises 164,618 712 2,773 162,557 U.S. government agency securities 15,230 403 - 15,633 Collateralized mortgage obligations: Government-sponsored enterprises 257,475 1,097 3,897 254,675 U.S. government agency securities 83,148 767 - 83,915 State & municipal 243,133 331 1,616 241,848 Total HTM securities $ 783,599 $ 3,362 $ 8,286 $ 778,675
Investment Securities with Unrealized Losses	The following table sets forth information with regard to investment securities with unrealized losses segregated according to the length of time the securities had been in a continuous unrealized loss position: Less Than 12 Months 12 Months or Longer Total (In thousands) Fair Value Unrealized Losses Number of Positions Fair Value Unrealized Losses Number of Positions Fair Value Unrealized Losses Number of Positions As of June 30, 2019 AFS securities: Federal agency $ - $ - - $ 9,822 $ (178 ) 1 $ 9,822 $ (178 ) 1 Mortgage-backed - - - 137,139 (677 ) 44 137,139 (677 ) 44 Collateralized mortgage obligations 4,342 (10 ) 2 167,735 (1,290 ) 39 172,077 (1,300 ) 41 Total securities with unrealized losses $ 4,342 $ (10 ) 2 $ 314,696 $ (2,145 ) 84 $ 319,038 $ (2,155 ) 86 HTM securities: Mortgage-backed $ - $ - - $ 40,748 $ (484 ) 4 $ 40,748 $ (484 ) 4 Collateralized mortgage obligations 4,561 (75 ) 1 29,546 (464 ) 6 34,107 (539 ) 7 State & municipal - - - 8,590 (76 ) 14 8,590 (76 ) 14 Total securities with unrealized losses $ 4,561 $ (75 ) 1 $ 78,884 $ (1,024 ) 24 $ 83,445 $ (1,099 ) 25 As of December 31, 2018 AFS securities: Federal agency $ - $ - - $ 64,294 $ (693 ) 6 $ 64,294 $ (693 ) 6 State & municipal 1,715 (3 ) 3 22,324 (234 ) 35 24,039 (237 ) 38 Mortgage-backed 18,462 (65 ) 12 428,440 (10,764 ) 101 446,902 (10,829 ) 113 Collateralized mortgage obligations 12,118 (69 ) 5 320,908 (8,518 ) 62 333,026 (8,587 ) 67 Total securities with unrealized losses $ 32,295 $ (137 ) 20 $ 835,966 $ (20,209 ) 204 $ 868,261 $ (20,346 ) 224 HTM securities: Mortgage-backed $ - $ - - $ 82,579 $ (2,773 ) 6 $ 82,579 $ (2,773 ) 6 Collateralized mortgage obligations 4,386 (7 ) 2 145,396 (3,890 ) 26 149,782 (3,897 ) 28 State & municipal 18,907 (84 ) 30 58,258 (1,532 ) 86 77,165 (1,616 ) 116 Total securities with unrealized losses $ 23,293 $ (91 ) 32 $ 286,233 $ (8,195 ) 118 $ 309,526 $ (8,286 ) 150
Gains and Losses on Equity Securities	The following tables set forth information with regard to gains and losses on equity securities: Three Months Ended June 30, (In thousands) 2019 2018 Net gains and losses recognized on equity securities $ (69 ) $ 91 Less: Net gains and losses recognized during the period on equity securities sold during the period - - Unrealized gains and losses recognized on equity securities still held $ (69 ) $ 91 Six Months Ended June 30, (In thousands) 2019 2018 Net gains and losses recognized on equity securities $ 87 $ 163 Less: Net gains and losses recognized during the period on equity securities sold during the period - 44 Unrealized gains and losses recognized on equity securities still held $ 87 $ 119
Contractual Maturities of Debt Securities	The following tables set forth information with regard to contractual maturities of debt securities at June 30, 2019: (In thousands) Amortized Cost Estimated Fair Value AFS debt securities: Within one year $ 123 $ 123 From one to five years 52,233 52,196 From five to ten years 174,204 175,628 After ten years 747,740 751,749 Total AFS debt securities $ 974,300 $ 979,696 HTM debt securities: Within one year $ 60,959 $ 60,959 From one to five years 67,594 68,031 From five to ten years 190,717 193,697 After ten years 425,331 432,308 Total HTM debt securities $ 744,601 $ 754,995

Allowance for Loan Losses and_3

Allowance for Loan Losses and Credit Quality of Loans (Tables)	6 Months Ended
	Jun. 30, 2019
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Portfolio and Class Segments	Portfolio Class Commercial Loans Commercial and Industrial Commercial Real Estate Business Banking Consumer Loans Dealer Finance Specialty Lending Direct Residential Real Estate
Allowance for Loan Losses by Portfolio	The following tables illustrate the changes in the allowance for loan losses by our portfolio segments: (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total Balance as of March 31, 2019 $ 32,159 $ 36,804 $ 2,442 $ 71,405 Charge-offs (1,171 ) (6,927 ) (334 ) (8,432 ) Recoveries 118 1,742 55 1,915 Provision 2,046 4,915 316 7,277 Ending Balance as of June 30, 2019 $ 33,152 $ 36,534 $ 2,479 $ 72,165 Balance as of March 31, 2018 $ 28,190 $ 36,973 $ 5,037 $ 70,200 Charge-offs (907 ) (7,442 ) (208 ) (8,557 ) Recoveries 183 1,700 146 2,029 Provision 3,593 5,248 (63 ) 8,778 Ending Balance as of June 30, 2018 $ 31,059 $ 36,479 $ 4,912 $ 72,450 (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total Balance as of December 31, 2018 $ 32,759 $ 37,178 $ 2,568 $ 72,505 Charge-offs (1,918 ) (14,360 ) (608 ) (16,886 ) Recoveries 212 3,141 109 3,462 Provision 2,099 10,575 410 13,084 Ending Balance as of June 30, 2019 $ 33,152 $ 36,534 $ 2,479 $ 72,165 Balance as of December 31, 2017 $ 27,606 $ 36,830 $ 5,064 $ 69,500 Charge-offs (1,712 ) (15,129 ) (390 ) (17,231 ) Recoveries 370 3,344 193 3,907 Provision 4,795 11,434 45 16,274 Ending Balance as of June 30, 2018 $ 31,059 $ 36,479 $ 4,912 $ 72,450 The following tables illustrate the allowance for loan losses and the recorded investment by portfolio segments: (In thousands) Commercial Loans Consumer Loans Residential Real Estate Total As of June 30, 2019 Allowance for loan losses $ 33,152 $ 36,534 $ 2,479 $ 72,165 Allowance for loans individually evaluated for impairment 11 - - 11 Allowance for loans collectively evaluated for impairment $ 33,141 $ 36,534 $ 2,479 $ 72,154 Ending balance of loans $ 3,325,064 $ 2,234,130 $ 1,404,079 $ 6,963,273 Ending balance of originated loans individually evaluated for impairment 5,422 7,674 7,495 20,591 Ending balance of acquired loans collectively evaluated for impairment 139,710 27,582 137,622 304,914 Ending balance of originated loans collectively evaluated for impairment $ 3,179,932 $ 2,198,874 $ 1,258,962 $ 6,637,768 As of December 31, 2018 Allowance for loan losses $ 32,759 $ 37,178 $ 2,568 $ 72,505 Allowance for loans individually evaluated for impairment 25 - - 25 Allowance for loans collectively evaluated for impairment $ 32,734 $ 37,178 $ 2,568 $ 72,480 Ending balance of loans $ 3,222,310 $ 2,284,563 $ 1,380,836 $ 6,887,709 Ending balance of originated loans individually evaluated for impairment 5,786 7,887 6,905 20,578 Ending balance of acquired loans collectively evaluated for impairment 143,690 31,624 147,277 322,591 Ending balance of originated loans collectively evaluated for impairment $ 3,072,834 $ 2,245,052 $ 1,226,654 $ 6,544,540
Past due and Nonperforming Loans by Loan Class	The following tables set forth information with regard to past due and nonperforming loans by loan class: (In thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Nonaccrual Current Recorded Total Loans As of June 30, 2019 Originated Commercial Loans: C&I $ 43 $ 1,100 $ - $ 1,143 $ 952 $ 867,661 $ 869,756 CRE 4,791 370 - 5,161 4,596 1,822,746 1,832,503 Business Banking 1,537 295 - 1,832 6,314 474,949 483,095 Total Commercial Loans $ 6,371 $ 1,765 $ - $ 8,136 $ 11,862 $ 3,165,356 $ 3,185,354 Consumer Loans: Dealer Finance $ 11,710 $ 1,842 $ 741 $ 14,293 $ 1,737 $ 1,173,640 $ 1,189,670 Specialty Lending 3,452 1,880 1,481 6,813 - 513,161 519,974 Direct 2,554 631 145 3,330 2,650 490,924 496,904 Total Consumer Loans $ 17,716 $ 4,353 $ 2,367 $ 24,436 $ 4,387 $ 2,177,725 $ 2,206,548 Residential Real Estate $ 1,225 $ 830 $ - $ 2,055 $ 6,470 $ 1,257,932 $ 1,266,457 Total Originated Loans $ 25,312 $ 6,948 $ 2,367 $ 34,627 $ 22,719 $ 6,601,013 $ 6,658,359 Acquired Commercial Loans: C&I $ - $ - $ - $ - $ 38 $ 33,001 $ 33,039 CRE - - - - - 76,362 76,362 Business Banking 441 3 - 444 466 29,399 30,309 Total Commercial Loans $ 441 $ 3 $ - $ 444 $ 504 $ 138,762 $ 139,710 Consumer Loans: Direct $ 217 $ 22 $ 20 $ 259 $ 96 $ 27,227 $ 27,582 Total Consumer Loans $ 217 $ 22 $ 20 $ 259 $ 96 $ 27,227 $ 27,582 Residential Real Estate $ 648 $ 488 $ - $ 1,136 $ 1,350 $ 135,136 $ 137,622 Total Acquired Loans $ 1,306 $ 513 $ 20 $ 1,839 $ 1,950 $ 301,125 $ 304,914 Total Loans $ 26,618 $ 7,461 $ 2,387 $ 36,466 $ 24,669 $ 6,902,138 $ 6,963,273 (In thousands) 31-60 Days Past Due Accruing 61-90 Days Past Due Accruing Greater Than 90 Days Past Due Accruing Total Past Due Accruing Nonaccrual Current Recorded Total Loans As of December 31, 2018 Originated Commercial Loans: C&I $ 909 $ - $ - $ 909 $ 1,062 $ 846,148 $ 848,119 CRE 1,089 - 588 1,677 4,995 1,734,558 1,741,230 Business Banking 1,092 302 - 1,394 5,974 481,903 489,271 Total Commercial Loans $ 3,090 $ 302 $ 588 $ 3,980 $ 12,031 $ 3,062,609 $ 3,078,620 Consumer Loans: Dealer Finance $ 14,519 $ 2,300 $ 1,186 $ 18,005 $ 1,971 $ 1,196,136 $ 1,216,112 Specialty Lending 3,479 1,773 1,562 6,814 - 518,114 524,928 Direct 2,962 1,437 552 4,951 2,592 504,356 511,899 Total Consumer Loans $ 20,960 $ 5,510 $ 3,300 $ 29,770 $ 4,563 $ 2,218,606 $ 2,252,939 Residential Real Estate $ 1,426 $ 157 $ 1,182 $ 2,765 $ 6,778 $ 1,224,016 $ 1,233,559 Total Originated Loans $ 25,476 $ 5,969 $ 5,070 $ 36,515 $ 23,372 $ 6,505,231 $ 6,565,118 Acquired Commercial Loans: C&I $ - $ - $ - $ - $ - $ 26,124 $ 26,124 CRE - - - - - 84,492 84,492 Business Banking 466 288 - 754 390 31,930 33,074 Total Commercial Loans $ 466 $ 288 $ - $ 754 $ 390 $ 142,546 $ 143,690 Consumer Loans: Dealer Finance $ 1 $ 1 $ - $ 2 $ - $ 30 $ 32 Direct 152 41 15 208 227 31,157 31,592 Total Consumer Loans $ 153 $ 42 $ 15 $ 210 $ 227 $ 31,187 $ 31,624 Residential Real Estate $ 546 $ 42 $ - $ 588 $ 1,498 $ 145,191 $ 147,277 Total Acquired Loans $ 1,165 $ 372 $ 15 $ 1,552 $ 2,115 $ 318,924 $ 322,591 Total Loans $ 26,641 $ 6,341 $ 5,085 $ 38,067 $ 25,487 $ 6,824,155 $ 6,887,709
Impaired Loans and Specific Reserve Allocations	The following table provides information on loans specifically evaluated for impairment: June 30, 2019 December 31, 2018 (In thousands) Recorded Investment Balance (Book) Unpaid Principal Balance (Legal) Related Allowance Recorded Investment Balance (Book) Unpaid Principal Balance (Legal) Related Allowance Originated With no related allowance recorded: Commercial Loans: C&I $ 119 $ 363 $ $ 228 $ 497 $ CRE 4,181 6,195 4,312 6,330 Business Banking 1,011 1,961 1,013 2,001 Total Commercial Loans $ 5,311 $ 8,519 $ 5,553 $ 8,828 Consumer Loans: Dealer Finance $ 232 $ 327 $ 143 $ 241 Direct 7,442 9,547 7,744 9,831 Total Consumer Loans $ 7,674 $ 9,874 $ 7,887 $ 10,072 Residential Real Estate $ 7,495 $ 10,190 $ 6,905 $ 9,414 Total $ 20,480 $ 28,583 $ 20,345 $ 28,314 With an allowance recorded: Commercial Loans: C&I $ 111 $ 118 $ 11 $ 233 $ 238 $ 25 Total Commercial Loans $ 111 $ 118 $ 11 $ 233 $ 238 $ 25 Total Loans $ 20,591 $ 28,701 $ 11 $ 20,578 $ 28,552 $ 25 The following tables summarize the average recorded investments on loans specifically evaluated for impairment and the interest income recognized: For the Three Months Ended June 30, 2019 June 30, 2018 (In thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Originated Commercial Loans: C&I $ 326 $ - $ 447 $ 1 CRE 4,212 31 3,882 32 Business Banking 1,090 5 1,044 3 Total Commercial Loans $ 5,628 $ 36 $ 5,373 $ 36 Consumer Loans: Dealer Finance $ 221 $ 4 $ 194 $ 1 Direct 7,553 98 7,952 106 Total Consumer Loans $ 7,774 $ 102 $ 8,146 $ 107 Residential Real Estate $ 7,455 $ 82 $ 6,738 $ 71 Total Originated $ 20,857 $ 220 $ 20,257 $ 214 Total Loans $ 20,857 $ 220 $ 20,257 $ 214 For the Six Months Ended June 30, 2019 June 30, 2018 (In thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Originated Commercial Loans: C&I $ 383 $ 1 $ 457 $ 1 CRE 4,248 61 4,154 64 Business Banking 1,159 11 988 8 Total Commercial Loans $ 5,790 $ 73 $ 5,599 $ 73 Consumer Loans: Dealer Finance $ 198 $ 6 $ 188 $ 4 Direct 7,636 196 8,066 215 Total Consumer Loans $ 7,834 $ 202 $ 8,254 $ 219 Residential Real Estate $ 7,323 $ 159 $ 6,815 $ 144 Total Originated $ 20,947 $ 434 $ 20,668 $ 436 Total Loans $ 20,947 $ 434 $ 20,668 $ 436
Financing Receivable Credit Quality by Loan Class	The following tables illustrate the Company’s credit quality by loan class: (In thousands) As of June 30, 2019 Originated Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 799,988 $ 1,750,029 $ 2,550,017 Special Mention 30,012 33,912 63,924 Substandard 39,756 48,562 88,318 Total $ 869,756 $ 1,832,503 $ 2,702,259 Acquired Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 28,479 $ 75,768 $ 104,247 Special Mention 1,686 - 1,686 Substandard 2,874 594 3,468 Total $ 33,039 $ 76,362 $ 109,401 Consumer Credit Exposure By Payment Activity: Direct Total Performing $ 27,466 $ 27,466 Nonperforming 116 116 Total $ 27,582 $ 27,582 (In thousands) As of December 31, 2018 Originated Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 796,778 $ 1,681,330 $ 2,478,108 Special Mention 11,348 13,894 25,242 Substandard 39,993 46,006 85,999 Total $ 848,119 $ 1,741,230 $ 2,589,349 Acquired Commercial Credit Exposure By Internally Assigned Grade: C&I CRE Total Pass $ 23,283 $ 83,762 $ 107,045 Special Mention 2,831 92 2,923 Substandard 10 638 648 Total $ 26,124 $ 84,492 $ 110,616
Troubled Debt Restructurings on Financing Receivables	The following tables illustrate the recorded investment and number of modifications for modified loans, including the recorded investment in the loans prior to a modification and the recorded investment in the loans after restructuring: Three Months Ended June 30, 2019 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Commercial Loans: Business Banking - $ - $ - 1 $ 6 $ 5 Total Commercial Loans - $ - $ - 1 $ 6 $ 5 Consumer Loans: Dealer Finance 4 $ 60 $ 60 1 $ 13 $ 13 Direct 2 68 77 - - - Total Consumer Loans 6 $ 128 $ 137 1 $ 13 $ 13 Residential Real Estate 2 $ 369 $ 381 - $ - $ - Total Troubled Debt Restructurings 8 $ 497 $ 518 2 $ 19 $ 18 Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Number of Contracts Pre- Modification Outstanding Recorded Investment Post- Modification Outstanding Recorded Investment Commercial Loans: C&I 1 $ 65 $ 65 - $ - $ - Business Banking 2 388 388 3 369 371 Total Commercial Loans 3 $ 453 $ 453 3 $ 369 $ 371 Consumer Loans: Dealer Finance 9 $ 134 $ 134 7 $ 95 $ 94 Direct 8 388 398 2 41 41 Total Consumer Loans 17 $ 522 $ 532 9 $ 136 $ 135 Residential Real Estate 8 $ 757 $ 786 5 $ 323 $ 323 Total Troubled Debt Restructurings 28 $ 1,732 $ 1,771 17 $ 828 $ 829 The following tables illustrate the recorded investment and number of modifications for TDRs where a concession has been made and subsequently defaulted during the period: Three Months Ended June 30, 2019 Three Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial Loans: Business Banking - $ - 1 $ 58 Total Commercial Loans - $ - 1 $ 58 Consumer Loans: Direct 14 $ 496 13 $ 495 Total Consumer Loans 14 $ 496 13 $ 495 Residential Real Estate 8 $ 429 7 $ 599 Total Troubled Debt Restructurings 22 $ 925 21 $ 1,152 Six Months Ended June 30, 2019 Six Months Ended June 30, 2018 (Dollars in thousands) Number of Contracts Recorded Investment Number of Contracts Recorded Investment Commercial Loans: Business Banking - $ - 2 $ 258 Total Commercial Loans - $ - 2 $ 258 Consumer Loans: Dealer Finance 2 $ 17 - $ - Direct 19 958 25 1,260 Total Consumer Loans 21 $ 975 25 $ 1,260 Residential Real Estate 13 $ 644 13 $ 907 Total Troubled Debt Restructurings 34 $ 1,619 40 $ 2,425

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Net Lease Cost	The table below summarizes our net lease cost: (In thousands) Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost $ 1,791 $ 3,590 Variable lease cost 581 1,258 Short-term lease cost 87 177 Sublease income (112 ) (213 ) Total operating lease cost $ 2,347 $ 4,812
Future Minimum Rental Commitments Related to Non-cancelable Operating Leases	The table below shows future minimum rental commitments related to non-cancelable operating leases for the next five years and thereafter as of June 30, 2019 . (In thousands) 2019 $ 3,663 2020 7,032 2021 6,184 2022 5,345 2023 4,523 Thereafter 15,432 Total lease payments $ 42,179 Less: interest (5,044 ) Present value of lease liabilities $ 37,135
Additional Information for Operating Leases	The following table shows the weighted average remaining operating lease term, the weighted average discount rate and supplemental information on the unaudited interim consolidated statements of cash flows for operating leases: (In thousands except for percent and period data) June 30, 2019 Weighted average remaining lease term, in years 8.09 Weighted average discount rate 3.03 % Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 3,070 ROU assets obtained in exchange for lease liabilities 37,749
Future Minimum Rental Payments Related to Non-cancelable Operating Leases	The following table shows the future minimum rental payments related to non-cancelable operating leases with original terms of one year or more as of December 31, 2018. (In thousands) 2019 $ 6,890 2020 6,467 2021 5,613 2022 4,773 2023 3,972 Thereafter 13,869 Total $ 41,584

Defined Benefit Post-Retireme_3

Defined Benefit Post-Retirement Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Defined Benefit Post-Retirement Plans [Abstract]
Net Periodic Pension Benefits and Other Benefit Costs	The components of expense for Pension Benefits and Other Benefits are set forth below: Pension Benefits Other Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2019 2018 2019 2018 Components of net periodic cost (benefit): Service cost $ 435 $ 420 $ 2 $ 3 Interest cost 981 920 81 82 Expected return on plan assets (1,873 ) (2,123 ) - - Net amortization 639 251 18 44 Total net periodic cost (benefit) $ 182 $ (532 ) $ 101 $ 129 Pension Benefits Other Benefits Six Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Components of net periodic cost (benefit): Service cost $ 870 $ 840 $ 4 $ 6 Interest cost 1,962 1,840 162 164 Expected return on plan assets (3,746 ) (4,246 ) - - Net amortization 1,278 502 35 88 Total net periodic cost (benefit) $ 364 $ (1,064 ) $ 201 $ 258

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Earnings Per Share	The following is a reconciliation of basic and diluted EPS for the periods presented in the unaudited interim consolidated statements of income: Three Months Ended June 30, (In thousands, except per share data) 2019 2018 Basic EPS: Weighted average common shares outstanding 43,809 43,699 Net income available to common stockholders $ 30,555 $ 28,121 Basic EPS $ 0.70 $ 0.64 Diluted EPS: Weighted average common shares outstanding 43,809 43,699 Dilutive effect of common stock options and restricted stock 311 318 Weighted average common shares and common share equivalents 44,120 44,017 Net income available to common stockholders $ 30,555 $ 28,121 Diluted EPS $ 0.69 $ 0.64 Six Months Ended June 30, (In thousands, except per share data) 2019 2018 Basic EPS: Weighted average common shares outstanding 43,797 43,681 Net income available to common stockholders $ 59,682 $ 54,107 Basic EPS $ 1.36 $ 1.24 Diluted EPS: Weighted average common shares outstanding 43,797 43,681 Dilutive effect of common stock options and restricted stock 300 311 Weighted average common shares and common share equivalents 44,097 43,992 Net income available to common stockholders $ 59,682 $ 54,107 Diluted EPS $ 1.35 $ 1.23

Reclassification Adjustments _2

Reclassification Adjustments Out of Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2019
Reclassification Adjustments Out of Other Comprehensive Income (Loss) [Abstract]
Reclassification Out of Accumulated Other Comprehensive Income	The following table summarizes the reclassification adjustments out of accumulated other comprehensive income (loss) (“AOCI”): Detail About AOCI Components Amount Reclassified From AOCI Affected Line Item in the Consolidated Statement of Comprehensive Income (Loss) Three Months Ended (In thousands) June 30, 2019 June 30, 2018 AFS securities: Amortization of unrealized gains related to securities transfer $ 199 $ 177 Interest income Tax effect $ (50 ) $ (44 ) Income tax (benefit) Net of tax $ 149 $ 133 Cash flow hedges: Net unrealized (gains) on cash flow hedges reclassified to interest expense $ (738 ) $ (540 ) Interest expense Tax effect $ 185 $ 135 Income tax expense Net of tax $ (553 ) $ (405 ) Pension and other benefits: Amortization of net losses $ 633 $ 273 Other noninterest expense Amortization of prior service costs 24 22 Other noninterest expense Tax effect $ (164 ) $ (74 ) Income tax (benefit) Net of tax $ 493 $ 221 Total reclassifications, net of tax $ 89 $ (51 ) Detail About AOCI Components Amount Reclassified From AOCI Affected Line item in the Consolidated Statement of Comprehensive Income (Loss) Six Months Ended (In thousands) June 30, 2019 June 30, 2018 AFS securities: Losses on AFS securities $ 99 $ - Net securities gains Amortization of unrealized gains related to securities transfer 366 365 Interest income Tax effect $ (117 ) $ (91 ) Income tax (benefit) Net of tax $ 348 $ 274 Cash flow hedges: Net unrealized (gains) on cash flow hedges reclassified to interest expense $ (1,537 ) $ (899 ) Interest expense Tax effect $ 385 $ 225 Income tax expense Net of tax $ (1,152 ) $ (674 ) Pension and other benefits: Amortization of net losses $ 1,267 $ 546 Other noninterest expense Amortization of prior service costs 46 44 Other noninterest expense Tax effect $ (328 ) $ (148 ) Income tax (benefit) Net of tax $ 985 $ 442 Total reclassifications, net of tax $ 181 $ 42

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value Adjustment Recorded Related to Notional Amount of Derivatives Outstanding and Notional Amount of Risk Participation Agreements	The following table depicts the fair value adjustment recorded related to the notional amount of derivatives outstanding as well as the notional amount of risk participation agreements: June 30, December 31, (In thousands) 2019 2018 Derivatives Not Designated as Hedging Instruments: Fair value adjustment included in other assets and other liabilities Interest rate derivatives $ 38,454 $ 17,572 Notional amount: Interest rate derivatives 757,614 653,369 Risk participation agreements 73,141 70,785 Derivatives Designated as Hedging Instruments: Fair value adjustment included in other assets Interest rate derivatives 521 2,428 Fair value adjustment included in other liabilities Interest rate derivatives 18 - Notional amount: Interest rate derivatives 150,000 225,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Effect of Derivatives on AOCI and on Consolidated Statement of Income	The following table indicates the effect of cash flow hedge accounting on AOCI and on the unaudited interim consolidated statement of income: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Derivatives Designated as Hedging Instruments: Interest rate derivatives - included component Amount of (loss) or gain recognized in OCI $ (314 ) $ 424 (484 ) $ 1,472 Amount of (gain) reclassified from AOCI into interest expense (738 ) (540 ) (1,537 ) (899 )
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Effect of Derivatives on AOCI and on Consolidated Statement of Income	The following table indicates the gain or loss recognized in income on derivatives not designated as a hedging relationship: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Derivatives Not Designated as Hedging Instruments: Increase in other income $ 19 $ 320 $ 106 $ 123

Fair Value Measurements and F_3

Fair Value Measurements and Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Measurements and Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Assets and Liabilities Measured on a Recurring Basis	The following tables set forth the Company’s financial assets and liabilities measured on a recurring basis that were accounted for at fair value. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement: (In thousands) Level 1 Level 2 Level 3 June 30, 2019 Assets: AFS securities: Federal agency $ - $ 52,837 $ - $ 52,837 State & municipal - 9 - 9 Mortgage-backed - 499,227 - 499,227 Collateralized mortgage obligations - 427,623 - 427,623 Total AFS securities $ - $ 979,696 $ - $ 979,696 Equity securities 22,298 4,000 - 26,298 Derivatives - 39,044 - 39,044 Total $ 22,298 $ 1,022,740 $ - $ 1,045,038 Liabilities: Derivatives $ - $ 38,565 $ - $ 38,565 Total $ - $ 38,565 $ - $ 38,565 (In thousands) Level 1 Level 2 Level 3 December 31, 2018 Assets: AFS securities: Federal agency $ - $ 84,299 $ - $ 84,299 State & municipal - 29,915 - 29,915 Mortgage-backed - 512,295 - 512,295 Collateralized mortgage obligations - 371,987 - 371,987 Total AFS securities $ - $ 998,496 $ - $ 998,496 Equity securities 19,053 4,000 - 23,053 Derivatives - 20,000 - 20,000 Total $ 19,053 $ 1,022,496 $ - $ 1,041,549 Liabilities: Derivatives $ - $ 17,572 $ - $ 17,572 Total $ - $ 17,572 $ - $ 17,572
Information with Regard to Estimated Fair Values of Financial Instruments	The following table sets forth information with regard to estimated fair values of financial instruments. This table excludes financial instruments for which the carrying amount approximates fair value. Financial instruments for which the fair value approximates carrying value include cash and cash equivalents, AFS securities, equity securities, accrued interest receivable, non-maturity deposits, short-term borrowings, accrued interest payable and derivatives. June 30, 2019 December 31, 2018 (In thousands) Fair Value Hierarchy Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Financial assets: HTM securities 2 $ 744,601 $ 754,995 $ 783,599 $ 778,675 Net loans 3 6,906,770 7,199,147 6,822,147 6,754,460 Financial liabilities: Time deposits 2 $ 976,567 $ 973,822 $ 930,678 $ 920,534 Long-term debt 2 84,267 84,878 73,724 73,927 Junior subordinated debt 2 101,196 104,914 101,196 100,114

Securities, Available for Sale

Securities, Available for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt securities, available-for-sale [Abstract]
Amortized cost	$ 974,300		$ 974,300		$ 1,017,626
Unrealized gains	7,551		7,551		1,216
Unrealized losses	2,155		2,155		20,346
Estimated fair value	979,696		979,696		998,496
Sales transactions of securities available for sale [Abstract]
Gross realized gains	0	$ 0	53	$ 0
Gross realized (losses)	0	0	(152)	0
Net AFS realized (losses)	0	0	(99)	0
Gains from calls on securities available for sale	0	0	4	0
OTTI loss realized on equity investment	0	$ 0	0	$ 0
Federal Agency [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	52,987		52,987		84,982
Unrealized gains	28		28		10
Unrealized losses	178		178		693
Estimated fair value	52,837		52,837		84,299
State & Municipal [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	9		9		30,136
Unrealized gains	0		0		16
Unrealized losses	0		0		237
Estimated fair value	9		9		29,915
Mortgage-Backed, Government Sponsored Enterprises [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	458,878		458,878		493,225
Unrealized gains	3,624		3,624		439
Unrealized losses	666		666		10,354
Estimated fair value	461,836		461,836		483,310
Mortgage-Backed, U.S. Government Agency Securities [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	36,447		36,447		29,190
Unrealized gains	955		955		270
Unrealized losses	11		11		475
Estimated fair value	37,391		37,391		28,985
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	351,250		351,250		332,409
Unrealized gains	2,210		2,210		344
Unrealized losses	847		847		7,211
Estimated fair value	352,613		352,613		325,542
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	74,729		74,729		47,684
Unrealized gains	734		734		137
Unrealized losses	453		453		1,376
Estimated fair value	$ 75,010		$ 75,010		$ 46,445

Securities, Held to Maturity (D

Securities, Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	$ 744,601	$ 783,599
Unrealized gains	11,493	3,362
Unrealized losses	1,099	8,286
Estimated fair value	754,995	778,675
Amortized costs of securities available for sale and held to maturity pledged to secure public deposits	1,400,000	1,500,000
Amortized costs of securities AFS and HTM pledged as collateral for repurchase agreements	197,400	215,300
Federal Agency [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	19,996	19,995
Unrealized gains	46	52
Unrealized losses	0	0
Estimated fair value	20,042	20,047
Mortgage-Backed, Government Sponsored Enterprises [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	163,049	164,618
Unrealized gains	2,334	712
Unrealized losses	484	2,773
Estimated fair value	164,899	162,557
Mortgage-Backed, U.S. Government Agency Securities [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	14,530	15,230
Unrealized gains	921	403
Unrealized losses	0	0
Estimated fair value	15,451	15,633
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	232,825	257,475
Unrealized gains	2,712	1,097
Unrealized losses	539	3,897
Estimated fair value	234,998	254,675
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	103,457	83,148
Unrealized gains	3,303	767
Unrealized losses	0	0
Estimated fair value	106,760	83,915
State & Municipal [Member]
Held-to-maturity securities, fair value to amortized cost [Abstract]
Amortized cost	210,744	243,133
Unrealized gains	2,177	331
Unrealized losses	76	1,616
Estimated fair value	$ 212,845	$ 241,848

Securities, AFS Securities in C

Securities, AFS Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	Jun. 30, 2019USD ($)Position	Dec. 31, 2018USD ($)Position
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 4,342	$ 32,295
12 months or longer	314,696	835,966
Total	319,038	868,261
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	(10)	(137)
12 months or longer	(2,145)	(20,209)
Total	$ (2,155)	$ (20,346)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	2	20
12 months or longer | Position	84	204
Total | Position	86	224
Federal Agency [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 0	$ 0
12 months or longer	9,822	64,294
Total	9,822	64,294
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	0	0
12 months or longer	(178)	(693)
Total	$ (178)	$ (693)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	0	0
12 months or longer | Position	1	6
Total | Position	1	6
State & Municipal [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months		$ 1,715
12 months or longer		22,324
Total		24,039
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months		(3)
12 months or longer		(234)
Total		$ (237)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position		3
12 months or longer | Position		35
Total | Position		38
Mortgage-Backed [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 0	$ 18,462
12 months or longer	137,139	428,440
Total	137,139	446,902
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	0	(65)
12 months or longer	(677)	(10,764)
Total	$ (677)	$ (10,829)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	0	12
12 months or longer | Position	44	101
Total | Position	44	113
Collateralized Mortgage Obligations [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 4,342	$ 12,118
12 months or longer	167,735	320,908
Total	172,077	333,026
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	(10)	(69)
12 months or longer	(1,290)	(8,518)
Total	$ (1,300)	$ (8,587)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	2	5
12 months or longer | Position	39	62
Total | Position	41	67

Securities, HTM Securities in C

Securities, HTM Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	Jun. 30, 2019USD ($)Position	Dec. 31, 2018USD ($)Position
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 4,561	$ 23,293
12 months or longer	78,884	286,233
Total	83,445	309,526
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	(75)	(91)
12 months or longer	(1,024)	(8,195)
Total	$ (1,099)	$ (8,286)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	1	32
12 months or longer | Position	24	118
Total | Position	25	150
Mortgage-Backed [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 0	$ 0
12 months or longer	40,748	82,579
Total	40,748	82,579
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	0	0
12 months or longer	(484)	(2,773)
Total	$ (484)	$ (2,773)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	0	0
12 months or longer | Position	4	6
Total | Position	4	6
Collateralized Mortgage Obligations [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 4,561	$ 4,386
12 months or longer	29,546	145,396
Total	34,107	149,782
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	(75)	(7)
12 months or longer	(464)	(3,890)
Total	$ (539)	$ (3,897)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	1	2
12 months or longer | Position	6	26
Total | Position	7	28
State & Municipal [Member]
Unrealized Loss Position, Fair Value [Abstract]
Less than 12 months	$ 0	$ 18,907
12 months or longer	8,590	58,258
Total	8,590	77,165
Unrealized Loss Position, Unrealized Losses [Abstract]
Less than 12 months	0	(84)
12 months or longer	(76)	(1,532)
Total	$ (76)	$ (1,616)
Unrealized Loss Position, Number of Positions [Abstract]
Less than 12 months | Position	0	30
12 months or longer | Position	14	86
Total | Position	14	116

Securities, Unrealized Gains (L

Securities, Unrealized Gains (Losses) Related to Equity Securities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)Issuer	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)Issuer	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)Issuer
Gains and losses on equity securities [Abstract]
Net gains and losses recognized on equity securities	$ (69)	$ 91	$ 87	$ 163
Less: Net gains and losses recognized during the period on equity securities sold during the period	0	0	0	44
Unrealized gains and losses recognized on equity securities still held	(69)	91	87	119
Carrying amount of equity securities without readily determinable fair values	4,000		4,000		$ 4,000
Impairment adjustments of equity securities without readily determinable fair values	0	0	0	0
Downward adjustments of equity securities without readily determinable fair values	0	0	0	0
Upward adjustments of equity securities without readily determinable fair values	$ 0	$ 0	$ 0	$ 0
Number of issuers whose holdings exceeded 10% of consolidated stockholders' equity, excluding U.S. Government securities | Issuer	0		0		0

Securities, AFS Debt Securities

Securities, AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Available-for-sale Securities, Debt Maturities, Amortized Cost [Abstract]
Within one year	$ 123
From one to five years	52,233
From five to ten years	174,204
After ten years	747,740
Amortized cost	974,300	$ 1,017,626
Available-for-sale Securities, Debt Maturities, Estimated Fair Value [Abstract]
Within one year	123
From one to five years	52,196
From five to ten years	175,628
After ten years	751,749
Fair value	$ 979,696	$ 998,496

Securities, HTM Debt Securities

Securities, HTM Debt Securities, Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Held-to-maturity Securities, Debt Maturities, Amortized Cost [Abstract]
Within one year	$ 60,959
From one to five years	67,594
From five to ten years	190,717
After ten years	425,331
Amortized cost	744,601	$ 783,599
Held-to-maturity Securities, Debt Maturities, Estimated Fair Value [Abstract]
Within one year	60,959
From one to five years	68,031
From five to ten years	193,697
After ten years	432,308
Fair value	$ 754,995	$ 778,675

Allowance for Loan Losses and_4

Allowance for Loan Losses and Credit Quality of Loans (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)Segment
Allowance for Loan Losses [Abstract]
Loan portfolio segments | Segment	3
Commercial Loans [Member] | Commercial Real Estate [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Loan amount, percentage of appraised value or purchase price of the property	80.00%
Commercial Loans [Member] | Business Banking [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Business banking loans, amount available | $	$ 750
Consumer Loans [Member] | Dealer Finance [Member]
Allowance for Loan Losses [Abstract]
Percentage of automobile financing to indirect relationships with dealers	95.00%
Consumer Loans [Member] | Dealer Finance [Member] | Minimum [Member]
Allowance for Loan Losses [Abstract]
Principal repayment term of loan	3 years
Consumer Loans [Member] | Dealer Finance [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Principal repayment term of loan	6 years
Consumer Loans [Member] | Direct [Member] | Minimum [Member]
Allowance for Loan Losses [Abstract]
Principal repayment term of loan	1 year
Consumer Loans [Member] | Direct [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Principal repayment term of loan	10 years
Consumer Loans [Member] | Home Equity [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Loan amount, percentage of equity in property	85.00%
Residential Real Estate [Member] | Maximum [Member]
Allowance for Loan Losses [Abstract]
Loan amount, percentage of appraised value or purchase price of the property	85.00%

Allowance for Loan Losses and_5

Allowance for Loan Losses and Credit Quality of Loans, Allowance for Loan Losses by Portfolio Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Changes in allowance for loan losses by portfolio segment [Roll Forward]
Balance, beginning of period	$ 71,405	$ 70,200	$ 72,505	$ 69,500
Charge-offs	(8,432)	(8,557)	(16,886)	(17,231)
Recoveries	1,915	2,029	3,462	3,907
Provision	7,277	8,778	13,084	16,274
Balance, end of period	72,165	72,450	72,165	72,450
Commercial Loans [Member]
Changes in allowance for loan losses by portfolio segment [Roll Forward]
Balance, beginning of period	32,159	28,190	32,759	27,606
Charge-offs	(1,171)	(907)	(1,918)	(1,712)
Recoveries	118	183	212	370
Provision	2,046	3,593	2,099	4,795
Balance, end of period	33,152	31,059	33,152	31,059
Consumer Loans [Member]
Changes in allowance for loan losses by portfolio segment [Roll Forward]
Balance, beginning of period	36,804	36,973	37,178	36,830
Charge-offs	(6,927)	(7,442)	(14,360)	(15,129)
Recoveries	1,742	1,700	3,141	3,344
Provision	4,915	5,248	10,575	11,434
Balance, end of period	36,534	36,479	36,534	36,479
Residential Real Estate [Member]
Changes in allowance for loan losses by portfolio segment [Roll Forward]
Balance, beginning of period	2,442	5,037	2,568	5,064
Charge-offs	(334)	(208)	(608)	(390)
Recoveries	55	146	109	193
Provision	316	(63)	410	45
Balance, end of period	2,479	4,912	2,479	4,912
Acquired Loans [Member]
Changes in allowance for loan losses by portfolio segment [Roll Forward]
Balance, beginning of period			0
Charge-offs	(100)	$ (100)	(100)	$ (200)
Balance, end of period	$ 0		$ 0

Allowance for Loan Losses and_6

Allowance for Loan Losses and Credit Quality of Loans, Allowance for Loan Losses and Recorded Investment in Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Allowance for loan losses	$ 72,165	$ 71,405	$ 72,505	$ 72,450	$ 70,200	$ 69,500
Allowance for loans individually evaluated for impairment	11		25
Allowance for loans collectively evaluated for impairment	72,154		72,480
Ending balance of loans	6,963,273		6,887,709
Commercial Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Allowance for loan losses	33,152	32,159	32,759	31,059	28,190	27,606
Allowance for loans individually evaluated for impairment	11		25
Allowance for loans collectively evaluated for impairment	33,141		32,734
Ending balance of loans	3,325,064		3,222,310
Consumer Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Allowance for loan losses	36,534	36,804	37,178	36,479	36,973	36,830
Allowance for loans individually evaluated for impairment	0		0
Allowance for loans collectively evaluated for impairment	36,534		37,178
Ending balance of loans	2,234,130		2,284,563
Residential Real Estate [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Allowance for loan losses	2,479	$ 2,442	2,568	$ 4,912	$ 5,037	$ 5,064
Allowance for loans individually evaluated for impairment	0		0
Allowance for loans collectively evaluated for impairment	2,479		2,568
Ending balance of loans	1,404,079		1,380,836
Originated Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	6,658,359		6,565,118
Ending balance of loans individually evaluated for impairment	20,591		20,578
Ending balance of loans collectively evaluated for impairment	6,637,768		6,544,540
Originated Loans [Member] | Commercial Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	3,185,354		3,078,620
Ending balance of loans individually evaluated for impairment	5,422		5,786
Ending balance of loans collectively evaluated for impairment	3,179,932		3,072,834
Originated Loans [Member] | Consumer Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	2,206,548		2,252,939
Ending balance of loans individually evaluated for impairment	7,674		7,887
Ending balance of loans collectively evaluated for impairment	2,198,874		2,245,052
Originated Loans [Member] | Residential Real Estate [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	1,266,457		1,233,559
Ending balance of loans individually evaluated for impairment	7,495		6,905
Ending balance of loans collectively evaluated for impairment	1,258,962		1,226,654
Acquired Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Allowance for loan losses	0		0
Ending balance of loans	304,914		322,591
Ending balance of loans collectively evaluated for impairment	304,914		322,591
Acquired Loans [Member] | Commercial Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	139,710		143,690
Ending balance of loans collectively evaluated for impairment	139,710		143,690
Acquired Loans [Member] | Consumer Loans [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	27,582		31,624
Ending balance of loans collectively evaluated for impairment	27,582		31,624
Acquired Loans [Member] | Residential Real Estate [Member]
Allowance for loan losses and recorded investment by portfolio segment [Abstract]
Ending balance of loans	137,622		147,277
Ending balance of loans collectively evaluated for impairment	$ 137,622		$ 147,277

Allowance for Loan Losses and_7

Allowance for Loan Losses and Credit Quality of Loans, Past Due Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Aging [Abstract]
Minimum number of days past due for nonaccrual loan status	90 days
Total past due accruing	$ 36,466	$ 38,067
Nonaccrual	24,669	25,487
Current	6,902,138	6,824,155
Recorded total loans	6,963,273	6,887,709
31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	26,618	26,641
61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	7,461	6,341
Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	2,387	5,085
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Recorded total loans	3,325,064	3,222,310
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Recorded total loans	2,234,130	2,284,563
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Recorded total loans	1,404,079	1,380,836
Originated Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	34,627	36,515
Nonaccrual	22,719	23,372
Current	6,601,013	6,505,231
Recorded total loans	6,658,359	6,565,118
Originated Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	25,312	25,476
Originated Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	6,948	5,969
Originated Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	2,367	5,070
Originated Loans [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	8,136	3,980
Nonaccrual	11,862	12,031
Current	3,165,356	3,062,609
Recorded total loans	3,185,354	3,078,620
Originated Loans [Member] | Commercial Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	6,371	3,090
Originated Loans [Member] | Commercial Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,765	302
Originated Loans [Member] | Commercial Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	588
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,143	909
Nonaccrual	952	1,062
Current	867,661	846,148
Recorded total loans	869,756	848,119
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	43	909
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,100	0
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	5,161	1,677
Nonaccrual	4,596	4,995
Current	1,822,746	1,734,558
Recorded total loans	1,832,503	1,741,230
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	4,791	1,089
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	370	0
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	588
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,832	1,394
Nonaccrual	6,314	5,974
Current	474,949	481,903
Recorded total loans	483,095	489,271
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,537	1,092
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	295	302
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Originated Loans [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	24,436	29,770
Nonaccrual	4,387	4,563
Current	2,177,725	2,218,606
Recorded total loans	2,206,548	2,252,939
Originated Loans [Member] | Consumer Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	17,716	20,960
Originated Loans [Member] | Consumer Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	4,353	5,510
Originated Loans [Member] | Consumer Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	2,367	3,300
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	14,293	18,005
Nonaccrual	1,737	1,971
Current	1,173,640	1,196,136
Recorded total loans	1,189,670	1,216,112
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	11,710	14,519
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,842	2,300
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	741	1,186
Originated Loans [Member] | Consumer Loans [Member] | Specialty Lending [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	6,813	6,814
Nonaccrual	0	0
Current	513,161	518,114
Recorded total loans	519,974	524,928
Originated Loans [Member] | Consumer Loans [Member] | Specialty Lending [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	3,452	3,479
Originated Loans [Member] | Consumer Loans [Member] | Specialty Lending [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,880	1,773
Originated Loans [Member] | Consumer Loans [Member] | Specialty Lending [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,481	1,562
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	3,330	4,951
Nonaccrual	2,650	2,592
Current	490,924	504,356
Recorded total loans	496,904	511,899
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	2,554	2,962
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	631	1,437
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	145	552
Originated Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	2,055	2,765
Nonaccrual	6,470	6,778
Current	1,257,932	1,224,016
Recorded total loans	1,266,457	1,233,559
Originated Loans [Member] | Residential Real Estate [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,225	1,426
Originated Loans [Member] | Residential Real Estate [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	830	157
Originated Loans [Member] | Residential Real Estate [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	1,182
Acquired Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,839	1,552
Nonaccrual	1,950	2,115
Current	301,125	318,924
Recorded total loans	304,914	322,591
Acquired Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,306	1,165
Acquired Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	513	372
Acquired Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	20	15
Acquired Loans [Member] | Commercial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	444	754
Nonaccrual	504	390
Current	138,762	142,546
Recorded total loans	139,710	143,690
Acquired Loans [Member] | Commercial Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	441	466
Acquired Loans [Member] | Commercial Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	3	288
Acquired Loans [Member] | Commercial Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | C&I [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Nonaccrual	38	0
Current	33,001	26,124
Recorded total loans	33,039	26,124
Acquired Loans [Member] | Commercial Loans [Member] | C&I [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | C&I [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | C&I [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | CRE [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Nonaccrual	0	0
Current	76,362	84,492
Recorded total loans	76,362	84,492
Acquired Loans [Member] | Commercial Loans [Member] | CRE [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | CRE [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | CRE [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Commercial Loans [Member] | Business Banking [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	444	754
Nonaccrual	466	390
Current	29,399	31,930
Recorded total loans	30,309	33,074
Acquired Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	441	466
Acquired Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	3	288
Acquired Loans [Member] | Commercial Loans [Member] | Business Banking [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	0	0
Acquired Loans [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	259	210
Nonaccrual	96	227
Current	27,227	31,187
Recorded total loans	27,582	31,624
Acquired Loans [Member] | Consumer Loans [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	217	153
Acquired Loans [Member] | Consumer Loans [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	22	42
Acquired Loans [Member] | Consumer Loans [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	20	15
Acquired Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing		2
Nonaccrual		0
Current		30
Recorded total loans		32
Acquired Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing		1
Acquired Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing		1
Acquired Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing		0
Acquired Loans [Member] | Consumer Loans [Member] | Direct [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	259	208
Nonaccrual	96	227
Current	27,227	31,157
Recorded total loans	27,582	31,592
Acquired Loans [Member] | Consumer Loans [Member] | Direct [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	217	152
Acquired Loans [Member] | Consumer Loans [Member] | Direct [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	22	41
Acquired Loans [Member] | Consumer Loans [Member] | Direct [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	20	15
Acquired Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	1,136	588
Nonaccrual	1,350	1,498
Current	135,136	145,191
Recorded total loans	137,622	147,277
Acquired Loans [Member] | Residential Real Estate [Member] | 31-60 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	648	546
Acquired Loans [Member] | Residential Real Estate [Member] | 61-90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	488	42
Acquired Loans [Member] | Residential Real Estate [Member] | Greater Than 90 Days Past Due Accruing [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total past due accruing	$ 0	$ 0

Allowance for Loan Losses and_8

Allowance for Loan Losses and Credit Quality of Loans, Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Allowance for Loan Losses and Credit Quality of Loans [Abstract]
Threshold balance for classified loans to be evaluated individually for impairment	$ 750
Total Loans [Abstract]
Recorded investment balance (book)	20,591	$ 20,578
Unpaid principal balance (legal)	28,701	28,552
Related allowance	11	25
Acquired impaired loans specifically evaluated for impairment	0	0
Originated Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	20,480	20,345
Unpaid principal balance (legal)	28,583	28,314
Originated Loans [Member] | Commercial Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	5,311	5,553
Unpaid principal balance (legal)	8,519	8,828
With an allowance recorded [Abstract]
Recorded investment balance (book)	111	233
Unpaid principal balance (legal)	118	238
Total Loans [Abstract]
Related allowance	11	25
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	119	228
Unpaid principal balance (legal)	363	497
With an allowance recorded [Abstract]
Recorded investment balance (book)	111	233
Unpaid principal balance (legal)	118	238
Total Loans [Abstract]
Related allowance	11	25
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	4,181	4,312
Unpaid principal balance (legal)	6,195	6,330
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	1,011	1,013
Unpaid principal balance (legal)	1,961	2,001
Originated Loans [Member] | Consumer Loans [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	7,674	7,887
Unpaid principal balance (legal)	9,874	10,072
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	232	143
Unpaid principal balance (legal)	327	241
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	7,442	7,744
Unpaid principal balance (legal)	9,547	9,831
Originated Loans [Member] | Residential Real Estate [Member]
With no related allowance recorded [Abstract]
Recorded investment balance (book)	7,495	6,905
Unpaid principal balance (legal)	$ 10,190	$ 9,414

Allowance for Loan Losses and_9

Allowance for Loan Losses and Credit Quality of Loans, Average Recorded Investments on Loans Specifically Evaluated for Impairment and Interest Income Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	$ 20,857	$ 20,257	$ 20,947	$ 20,668
Interest income recognized	220	214	434	436
Originated Loans [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	20,857	20,257	20,947	20,668
Interest income recognized	220	214	434	436
Originated Loans [Member] | Commercial Loans [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	5,628	5,373	5,790	5,599
Interest income recognized	36	36	73	73
Originated Loans [Member] | Commercial Loans [Member] | C&I [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	326	447	383	457
Interest income recognized	0	1	1	1
Originated Loans [Member] | Commercial Loans [Member] | CRE [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	4,212	3,882	4,248	4,154
Interest income recognized	31	32	61	64
Originated Loans [Member] | Commercial Loans [Member] | Business Banking [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	1,090	1,044	1,159	988
Interest income recognized	5	3	11	8
Originated Loans [Member] | Consumer Loans [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	7,774	8,146	7,834	8,254
Interest income recognized	102	107	202	219
Originated Loans [Member] | Consumer Loans [Member] | Dealer Finance [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	221	194	198	188
Interest income recognized	4	1	6	4
Originated Loans [Member] | Consumer Loans [Member] | Direct [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	7,553	7,952	7,636	8,066
Interest income recognized	98	106	196	215
Originated Loans [Member] | Residential Real Estate [Member]
Average Recorded Investment and Interest Income Recognized [Abstract]
Average recorded investment	7,455	6,738	7,323	6,815
Interest income recognized	$ 82	$ 71	$ 159	$ 144

Allowance for Loan Losses an_10

Allowance for Loan Losses and Credit Quality of Loans, Credit Quality by Loan Class (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Credit Quality by Loan Class [Abstract]
Net loans	$ 6,963,273	$ 6,887,709
Consumer Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,234,130	2,284,563
Residential Real Estate Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,404,079	1,380,836
Originated Loans [Member]
Credit Quality by Loan Class [Abstract]
Net loans	6,658,359	6,565,118
Originated Loans [Member] | Commercial Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,702,259	2,589,349
Originated Loans [Member] | Commercial Credit Exposure [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,550,017	2,478,108
Originated Loans [Member] | Commercial Credit Exposure [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	63,924	25,242
Originated Loans [Member] | Commercial Credit Exposure [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	88,318	85,999
Originated Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member]
Credit Quality by Loan Class [Abstract]
Net loans	869,756	848,119
Originated Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	799,988	796,778
Originated Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	30,012	11,348
Originated Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	39,756	39,993
Originated Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,832,503	1,741,230
Originated Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,750,029	1,681,330
Originated Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	33,912	13,894
Originated Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	48,562	46,006
Originated Loans [Member] | Business Banking Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	483,095	489,271
Originated Loans [Member] | Business Banking Credit Exposure [Member] | Non-classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	469,380	476,052
Originated Loans [Member] | Business Banking Credit Exposure [Member] | Classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	13,715	13,219
Originated Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member]
Credit Quality by Loan Class [Abstract]
Net loans	483,095	489,271
Originated Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member] | Non-classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	469,380	476,052
Originated Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member] | Classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	13,715	13,219
Originated Loans [Member] | Consumer Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,206,548	2,252,939
Originated Loans [Member] | Consumer Credit Exposure [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,199,794	2,245,076
Originated Loans [Member] | Consumer Credit Exposure [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	6,754	7,863
Originated Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,189,670	1,216,112
Originated Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,187,192	1,212,955
Originated Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,478	3,157
Originated Loans [Member] | Consumer Credit Exposure [Member] | Specialty Lending [Member]
Credit Quality by Loan Class [Abstract]
Net loans	519,974	524,928
Originated Loans [Member] | Consumer Credit Exposure [Member] | Specialty Lending [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	518,493	523,366
Originated Loans [Member] | Consumer Credit Exposure [Member] | Specialty Lending [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,481	1,562
Originated Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member]
Credit Quality by Loan Class [Abstract]
Net loans	496,904	511,899
Originated Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	494,109	508,755
Originated Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,795	3,144
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,266,457	1,233,559
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,259,987	1,225,599
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	6,470	7,960
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,266,457	1,233,559
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,259,987	1,225,599
Originated Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	6,470	7,960
Acquired Loans [Member]
Credit Quality by Loan Class [Abstract]
Net loans	304,914	322,591
Acquired Loans [Member] | Commercial Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	109,401	110,616
Acquired Loans [Member] | Commercial Credit Exposure [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	104,247	107,045
Acquired Loans [Member] | Commercial Credit Exposure [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,686	2,923
Acquired Loans [Member] | Commercial Credit Exposure [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	3,468	648
Acquired Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member]
Credit Quality by Loan Class [Abstract]
Net loans	33,039	26,124
Acquired Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	28,479	23,283
Acquired Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,686	2,831
Acquired Loans [Member] | Commercial Credit Exposure [Member] | C&I [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,874	10
Acquired Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member]
Credit Quality by Loan Class [Abstract]
Net loans	76,362	84,492
Acquired Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Pass [Member]
Credit Quality by Loan Class [Abstract]
Net loans	75,768	83,762
Acquired Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Special Mention [Member]
Credit Quality by Loan Class [Abstract]
Net loans	0	92
Acquired Loans [Member] | Commercial Credit Exposure [Member] | CRE [Member] | Substandard [Member]
Credit Quality by Loan Class [Abstract]
Net loans	594	638
Acquired Loans [Member] | Business Banking Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	30,309	33,074
Acquired Loans [Member] | Business Banking Credit Exposure [Member] | Non-classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,482	29,945
Acquired Loans [Member] | Business Banking Credit Exposure [Member] | Classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,827	3,129
Acquired Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member]
Credit Quality by Loan Class [Abstract]
Net loans	30,309	33,074
Acquired Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member] | Non-classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,482	29,945
Acquired Loans [Member] | Business Banking Credit Exposure [Member] | Business Banking [Member] | Classified [Member]
Credit Quality by Loan Class [Abstract]
Net loans	2,827	3,129
Acquired Loans [Member] | Consumer Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,582	31,624
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,466	31,382
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	116	242
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member]
Credit Quality by Loan Class [Abstract]
Net loans		32
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans		32
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Dealer Finance [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans		0
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,582	31,592
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	27,466	31,350
Acquired Loans [Member] | Consumer Credit Exposure [Member] | Direct [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	116	242
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member]
Credit Quality by Loan Class [Abstract]
Net loans	137,622	147,277
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	136,272	145,779
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	1,350	1,498
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member]
Credit Quality by Loan Class [Abstract]
Net loans	137,622	147,277
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member] | Performing [Member]
Credit Quality by Loan Class [Abstract]
Net loans	136,272	145,779
Acquired Loans [Member] | Residential Real Estate Credit Exposure [Member] | Residential Real Estate [Member] | Nonperforming [Member]
Credit Quality by Loan Class [Abstract]
Net loans	$ 1,350	$ 1,498

Allowance for Loan Losses an_11

Allowance for Loan Losses and Credit Quality of Loans, Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)Contract	Jun. 30, 2018USD ($)Contract	Jun. 30, 2019USD ($)Contract	Jun. 30, 2018USD ($)Contract
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	8	2	28	17
Pre-modification outstanding recorded investment	$ 497	$ 19	$ 1,732	$ 828
Post-modification outstanding recorded investment	$ 518	$ 18	$ 1,771	$ 829
Number of contracts | Contract	22	21	34	40
Recorded Investment	$ 925	$ 1,152	$ 1,619	$ 2,425
Commercial Loans [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	0	1	3	3
Pre-modification outstanding recorded investment	$ 0	$ 6	$ 453	$ 369
Post-modification outstanding recorded investment	$ 0	$ 5	$ 453	$ 371
Number of contracts | Contract	0	1	0	2
Recorded Investment	$ 0	$ 58	$ 0	$ 258
Commercial Loans [Member] | C&I [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract			1	0
Pre-modification outstanding recorded investment			$ 65	$ 0
Post-modification outstanding recorded investment			$ 65	$ 0
Commercial Loans [Member] | Business Banking [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	0	1	2	3
Pre-modification outstanding recorded investment	$ 0	$ 6	$ 388	$ 369
Post-modification outstanding recorded investment	$ 0	$ 5	$ 388	$ 371
Number of contracts | Contract	0	1	0	2
Recorded Investment	$ 0	$ 58	$ 0	$ 258
Consumer Loans [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	6	1	17	9
Pre-modification outstanding recorded investment	$ 128	$ 13	$ 522	$ 136
Post-modification outstanding recorded investment	$ 137	$ 13	$ 532	$ 135
Number of contracts | Contract	14	13	21	25
Recorded Investment	$ 496	$ 495	$ 975	$ 1,260
Consumer Loans [Member] | Dealer Finance [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	4	1	9	7
Pre-modification outstanding recorded investment	$ 60	$ 13	$ 134	$ 95
Post-modification outstanding recorded investment	$ 60	$ 13	$ 134	$ 94
Number of contracts | Contract			2	0
Recorded Investment			$ 17	$ 0
Consumer Loans [Member] | Direct [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	2	0	8	2
Pre-modification outstanding recorded investment	$ 68	$ 0	$ 388	$ 41
Post-modification outstanding recorded investment	$ 77	$ 0	$ 398	$ 41
Number of contracts | Contract	14	13	19	25
Recorded Investment	$ 496	$ 495	$ 958	$ 1,260
Residential Real Estate [Member]
Troubled Debt Restructured Loans [Abstract]
Number of contracts | Contract	2	0	8	5
Pre-modification outstanding recorded investment	$ 369	$ 0	$ 757	$ 323
Post-modification outstanding recorded investment	$ 381	$ 0	$ 786	$ 323
Number of contracts | Contract	8	7	13	13
Recorded Investment	$ 429	$ 599	$ 644	$ 907

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease ROU assets	$ 34,600	$ 34,600
Net Lease Cost [Abstract]
Operating lease cost	1,791	3,590
Variable lease cost	581	1,258
Short-term lease cost	87	177
Sublease income	(112)	(213)
Total operating lease cost	2,347	4,812
Future Minimum Rental Commitments Related to Non-cancelable Operating Leases [Abstract]
2019	3,663	3,663
2020	7,032	7,032
2021	6,184	6,184
2022	5,345	5,345
2023	4,523	4,523
Thereafter	15,432	15,432
Total lease payments	42,179	42,179
Less: interest	(5,044)	(5,044)
Present value of lease liabilities	$ 37,135	$ 37,135
Additional Information Related to Operating Leases [Abstract]
Weighted average remaining lease term, in years	8 years 1 month 2 days	8 years 1 month 2 days
Weighted average discount rate	3.03%	3.03%
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases		$ 3,070
ROU assets obtained in exchange for lease liabilities		$ 37,749
Future Minimum Rental Payments Related to Non-cancelable Operating Leases with Original Terms of One Year or More [Abstract]
2019			$ 6,890
2020			6,467
2021			5,613
2022			4,773
2023			3,972
Thereafter			13,869
Total			$ 41,584

Defined Benefit Post-Retireme_4

Defined Benefit Post-Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Post-Retirement Plans [Abstract]
Employer contributions	$ 0	$ 0	$ 0	$ 0
Pension Benefits [Member]
Components of net periodic cost (benefit) [Abstract]
Service cost	435	420	870	840
Interest cost	981	920	1,962	1,840
Expected return on plan assets	(1,873)	(2,123)	(3,746)	(4,246)
Net amortization	639	251	1,278	502
Total net periodic cost (benefit)	182	(532)	364	(1,064)
Other Benefits [Member]
Components of net periodic cost (benefit) [Abstract]
Service cost	2	3	4	6
Interest cost	81	82	162	164
Expected return on plan assets	0	0	0	0
Net amortization	18	44	35	88
Total net periodic cost (benefit)	$ 101	$ 129	$ 201	$ 258

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic EPS [Abstract]
Weighted average common shares outstanding (in shares)	43,809,000	43,699,000	43,797,000	43,681,000
Net income available to common stockholders	$ 30,555	$ 28,121	$ 59,682	$ 54,107
Basic EPS (in dollars per share)	$ 0.70	$ 0.64	$ 1.36	$ 1.24
Diluted EPS [Abstract]
Weighted average common shares outstanding (in shares)	43,809,000	43,699,000	43,797,000	43,681,000
Dilutive effect of common stock options and restricted stock (in shares)	311,000	318,000	300,000	311,000
Weighted average common shares and common share equivalents (in shares)	44,120,000	44,017,000	44,097,000	43,992,000
Net income available to common stockholders	$ 30,555	$ 28,121	$ 59,682	$ 54,107
Diluted EPS (in dollars per share)	$ 0.69	$ 0.64	$ 1.35	$ 1.23
Stock Options [Member]
Earnings Per Share [Abstract]
Stock options excluded from calculation of diluted EPS (in shares)	1,500	1,500	1,500	1,500

Reclassification Adjustments _3

Reclassification Adjustments Out of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Net securities gains	$ (69)	$ 91	$ (12)	$ 163
Interest income (expense)	78,627	75,741	156,318	149,227
Other noninterest expense	4,630	4,332	9,756	8,747
Income tax expense (benefit)	8,805	8,112	16,923	15,121
Net income	30,555	28,121	59,682	54,107
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Total reclassifications during the period, net of tax	89	(51)	181	42
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Income tax expense (benefit)	(50)	(44)	(117)	(91)
Net income	149	133	348	274
Losses on AFS Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Net securities gains			99	0
Amortization of Unrealized Gains Related to Securities Transfer [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Interest income (expense)	199	177	366	365
Net Unrealized (Gains) on Cash Flow hedges Reclassified to Interest Expense [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Interest income (expense)	(738)	(540)	(1,537)	(899)
Income tax expense (benefit)	185	135	385	225
Net income	(553)	(405)	(1,152)	(674)
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Income tax expense (benefit)	(164)	(74)	(328)	(148)
Net income	493	221	985	442
Amortization of Net Losses [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Other noninterest expense	633	273	1,267	546
Amortization of Prior Service Costs [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Abstract]
Other noninterest expense	$ 24	$ 22	$ 46	$ 44

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)Agreement	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)Agreement	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)Agreement
Interest rate derivatives - Included Component [Abstract]
Amount of (loss) or gain recognized in OCI	$ (314)	$ 424	$ (484)	$ 1,472
Amount of (gain) reclassified from AOCI into interest expense	(738)	(540)	(1,537)	(899)
Derivatives Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member]
Fair value adjustment recorded related to notional amount of derivatives outstanding and notional amount of risk participation agreements [Abstract]
Fair value adjustment included in other assets	521		521		$ 2,428
Fair value adjustment included in other liabilities	18		18		0
Notional amount	150,000		150,000		$ 225,000
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member]
Interest rate derivatives - Included Component [Abstract]
Amount of (loss) or gain recognized in OCI	(314)	424	(484)	1,472
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest (Income) Expense [Member]
Interest rate derivatives - Included Component [Abstract]
Amount of (gain) reclassified from AOCI into interest expense	(738)	(540)	(1,537)	(899)
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps [Member]
Fair value adjustment recorded related to notional amount of derivatives outstanding and notional amount of risk participation agreements [Abstract]
Amount to be reclassified from AOCI as a reduction to interest expense during next twelve months			500
Derivatives Not Designated as Hedging Instruments [Member] | Other Income [Member]
Gain or loss recognized in income on derivatives not designating as a hedging relationship [Abstract]
Increase in other income	$ 19	$ 320	$ 106	$ 123
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member]
Interest rate derivatives [Abstract]
Number of risk participation agreements held | Agreement	10		10		9
Fair value adjustment recorded related to notional amount of derivatives outstanding and notional amount of risk participation agreements [Abstract]
Fair value adjustment included in other assets and other liabilities	$ 38,454		$ 38,454		$ 17,572
Notional amount	757,614		757,614		653,369
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Assets [Member]
Interest rate derivatives [Abstract]
Fair value of derivative asset	69		69		36
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member] | Other Liabilities [Member]
Interest rate derivatives [Abstract]
Fair value of derivative liability	93		93		17
Derivatives Not Designated as Hedging Instruments [Member] | Risk Participation Agreements [Member]
Fair value adjustment recorded related to notional amount of derivatives outstanding and notional amount of risk participation agreements [Abstract]
Notional amount	$ 73,141		$ 73,141		$ 70,785

Fair Value Measurements and F_4

Fair Value Measurements and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Transfers between Levels [Abstract]
Transfers from Level 1 to Level 2	$ 0	$ 0
Transfers from Level 2 to Level 1	0	4,000
Transfers into Level 3	0
Transfers out of Level 3	0
AFS securities [Abstract]
AFS securities	979,696	998,496
Equity securities	26,298	23,053
Liabilities [Abstract]
Collateral dependent impaired loans with specific reserve	100	200
Reserves on collateral dependent impaired loans	$ 11	25
Minimum [Member]
Liabilities [Abstract]
Liquidation expense ratio on impaired collateral	10.00%
Maximum [Member]
Liabilities [Abstract]
Liquidation expense ratio on impaired collateral	35.00%
Recurring Basis [Member]
AFS securities [Abstract]
AFS securities	$ 979,696	998,496
Equity securities	26,298	23,053
Derivatives	39,044	20,000
Total	1,045,038	1,041,549
Liabilities [Abstract]
Derivatives	38,565	17,572
Total	38,565	17,572
Recurring Basis [Member] | Level 1 [Member]
AFS securities [Abstract]
AFS securities	0	0
Equity securities	22,298	19,053
Derivatives	0	0
Total	22,298	19,053
Liabilities [Abstract]
Derivatives	0	0
Total	0	0
Recurring Basis [Member] | Level 2 [Member]
AFS securities [Abstract]
AFS securities	979,696	998,496
Equity securities	4,000	4,000
Derivatives	39,044	20,000
Total	1,022,740	1,022,496
Liabilities [Abstract]
Derivatives	38,565	17,572
Total	38,565	17,572
Recurring Basis [Member] | Level 3 [Member]
AFS securities [Abstract]
AFS securities	0	0
Equity securities	0	0
Derivatives	0	0
Total	0	0
Liabilities [Abstract]
Derivatives	0	0
Total	0	0
Recurring Basis [Member] | Federal Agency [Member]
AFS securities [Abstract]
AFS securities	52,837	84,299
Recurring Basis [Member] | Federal Agency [Member] | Level 1 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | Federal Agency [Member] | Level 2 [Member]
AFS securities [Abstract]
AFS securities	52,837	84,299
Recurring Basis [Member] | Federal Agency [Member] | Level 3 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | State & Municipal [Member]
AFS securities [Abstract]
AFS securities	9	29,915
Recurring Basis [Member] | State & Municipal [Member] | Level 1 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | State & Municipal [Member] | Level 2 [Member]
AFS securities [Abstract]
AFS securities	9	29,915
Recurring Basis [Member] | State & Municipal [Member] | Level 3 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | Mortgage-Backed [Member]
AFS securities [Abstract]
AFS securities	499,227	512,295
Recurring Basis [Member] | Mortgage-Backed [Member] | Level 1 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | Mortgage-Backed [Member] | Level 2 [Member]
AFS securities [Abstract]
AFS securities	499,227	512,295
Recurring Basis [Member] | Mortgage-Backed [Member] | Level 3 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | Collateralized Mortgage Obligations [Member]
AFS securities [Abstract]
AFS securities	427,623	371,987
Recurring Basis [Member] | Collateralized Mortgage Obligations [Member] | Level 1 [Member]
AFS securities [Abstract]
AFS securities	0	0
Recurring Basis [Member] | Collateralized Mortgage Obligations [Member] | Level 2 [Member]
AFS securities [Abstract]
AFS securities	427,623	371,987
Recurring Basis [Member] | Collateralized Mortgage Obligations [Member] | Level 3 [Member]
AFS securities [Abstract]
AFS securities	$ 0	$ 0

Fair Value Measurements and F_5

Fair Value Measurements and Fair Value of Financial Instruments, Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financial assets [Abstract]
HTM securities	$ 754,995	$ 778,675
Carrying Amount [Member] | Level 2 [Member]
Financial assets [Abstract]
HTM securities	744,601	783,599
Financial liabilities [Abstract]
Time deposits	976,567	930,678
Long-term debt	84,267	73,724
Junior subordinated debt	101,196	101,196
Carrying Amount [Member] | Level 3 [Member]
Financial assets [Abstract]
Net loans	6,906,770	6,822,147
Estimated Fair Value [Member] | Level 2 [Member]
Financial assets [Abstract]
HTM securities	754,995	778,675
Financial liabilities [Abstract]
Time deposits	973,822	920,534
Long-term debt	84,878	73,927
Junior subordinated debt	104,914	100,114
Estimated Fair Value [Member] | Level 3 [Member]
Financial assets [Abstract]
Net loans	$ 7,199,147	$ 6,754,460

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Guarantor Obligations [Abstract]
Obligation instrument term	1 year
Commitment to Extend Credits and Unused Lines of Credit [Member]
Guarantor Obligations [Abstract]
Commitments - maximum potential obligation	$ 1,900	$ 1,700
Standby Letters of Credit [Member]
Guarantor Obligations [Abstract]
Commitments - maximum potential obligation	$ 31.5	$ 41.2

Recent Accounting Pronounceme_3

Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Recent Accounting Pronouncements [Abstract]
Right of use assets	$ 34,600
Lease liability	$ 37,135
ASU 2016-02 [Member]
Recent Accounting Pronouncements [Abstract]
Right of use assets		$ 34,000
Lease liability		$ 37,000