Northwest Bancshares (NWBI) 10-Q 11 May 20 2020 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-34582
Entity Registrant Name	NORTHWEST BANCSHARES, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	27-0950358
Entity Address, Address Line One	100 Liberty Street
Entity Address, City or Town	Warren,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	16365
City Area Code	814
Local Phone Number	726-2140
Entity Shell Company	false
Title of 12(b) Security	Common Stock, 0.01 Par Value
Trading Symbol	NWBI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding (in shares)		127,573,335
Entity Central Index Key	0001471265
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1

CONSOLIDATED STATEMENTS OF FINA

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 276,454	$ 60,846
Marketable securities available-for-sale (amortized cost of $749,703 and $815,495, respectively)	765,579	819,901
Marketable securities held-to-maturity (fair value of $17,968 and $18,223, respectively)	17,208	18,036
Total cash and cash equivalents and marketable securities	1,059,241	898,783
Loans held-for-sale	6,426	7,709
Loans held for investment	8,830,448	8,800,965
Allowance for credit losses	(92,897)	(57,941)
Loans receivable, net	8,743,977	8,750,733
Federal Home Loan Bank stock, at cost	13,131	14,740
Accrued interest receivable	25,531	25,755
Real estate owned, net	1,075	950
Premises and equipment, net	147,427	147,409
Bank-owned life insurance	190,127	189,091
Goodwill	346,103	346,103
Other intangible assets, net	21,425	23,076
Other assets	133,159	97,268
Total assets	10,681,196	10,493,908
Liabilities:
Noninterest-bearing demand deposits	1,736,622	1,609,653
Interest-bearing demand deposits	1,975,830	1,944,108
Money market deposit accounts	1,946,113	1,863,998
Savings deposits	1,640,414	1,604,838
Time deposits	1,493,756	1,569,410
Total deposits	8,792,735	8,592,007
Borrowed funds	191,599	246,336
Junior subordinated debentures	121,813	121,800
Advances by borrowers for taxes and insurance	47,154	44,556
Accrued interest payable	834	1,142
Other liabilities	185,269	134,782
Total liabilities	9,339,404	9,140,623
Shareholders’ equity:
Preferred stock, $0.01 par value: 50,000,000 authorized, no shares issued	0	0
Common stock, $0.01 par value: 500,000,000 shares authorized, 106,933,483 and 106,859,088 shares issued and outstanding, respectively	1,069	1,069
Additional paid-in capital	808,250	805,750
Retained earnings	561,380	583,407
Accumulated other comprehensive loss	(28,907)	(36,941)
Total shareholders’ equity	1,341,792	1,353,285
Total liabilities and shareholders’ equity	$ 10,681,196	$ 10,493,908

CONSOLIDATED STATEMENTS OF FI_2

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Marketable securities available-for-sale, amortized cost	$ 749,703	$ 815,495
Marketable securities held-to-maturity, fair value	$ 17,968	$ 18,223
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	106,933,483	106,859,088
Common stock, shares outstanding (in shares)	106,933,483	106,859,088

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest income:
Loans receivable	$ 94,973	$ 94,935
Mortgage-backed securities	4,175	3,965
Taxable investment securities	648	936
Tax-free investment securities	185	182
Federal Home Loan Bank stock dividends	262	171
Interest-earning deposits	135	100
Total interest income	100,378	100,289
Interest expense:
Deposits	11,403	10,145
Borrowed funds	1,747	2,162
Total interest expense	13,150	12,307
Net interest income	87,228	87,982
Provision for credit losses	27,637	6,467
Net interest income after provision for credit losses	59,591	81,515
Noninterest income:
Gain on sale of loans	1,302	0
Gain/(loss) on sale of investments	181	(6)
Service charges and fees	15,116	12,043
Trust and other financial services income	5,001	4,195
Insurance commission income	2,372	2,178
Loss on real estate owned, net	(91)	(3)
Income from bank-owned life insurance	1,036	1,005
Mortgage banking income	1,194	216
Other operating income	1,865	2,034
Total noninterest income	27,976	21,662
Noninterest expense:
Compensation and employee benefits	42,746	38,188
Premises and occupancy costs	7,471	7,218
Office operations	3,382	3,131
Collections expense	474	308
Processing expenses	11,142	10,434
Marketing expenses	1,507	1,886
Federal deposit insurance premiums	0	706
Professional services	2,812	2,524
Amortization of intangible assets	1,651	1,447
Real estate owned expense	95	159
Restructuring/acquisition expense	2,458	1,926
Other expenses	4,873	3,497
Total noninterest expense	78,611	71,424
Income before income taxes	8,956	31,753
Federal and state income taxes expense	1,017	6,709
Net income	$ 7,939	$ 25,044
Basic earnings per share (in dollars per share)	$ 0.08	$ 0.24
Diluted earnings per share (in dollars per share)	$ 0.07	$ 0.24

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 7,939	$ 25,044
Net unrealized holding gains on marketable securities:
Unrealized holding gains net of tax of ($3,277) and ($1,781), respectively	8,157	4,452
Reclassification adjustment for gains included in net income, net of tax of ($14) and $0 respectively	37	0
Net unrealized holding gains on marketable securities	8,194	4,452
Change in fair value of interest rate swaps, net of tax of $162 and $0, respectively	(409)	0
Defined benefit plan:
Actuarial reclassification adjustments for prior period service costs and actuarial losses included in net income, net of tax of ($99) and ($82), respectively	249	209
Other comprehensive income	8,034	4,661
Total comprehensive income	$ 15,973	$ 29,705

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Unrealized holding gains (losses), tax	$ (3,277)	$ (1,781)
Reclassification adjustment for gains included in net income, tax	(14)	0
Change in fair value of interest rate swaps. tax	162	0
Reclassification adjustments for prior period service costs and net losses included in net income, tax	$ (99)	$ (82)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common stock	Paid-in capital	Retained earnings	Accumulated other comprehensive loss
Balance beginning of the period (in shares) at Dec. 31, 2018		103,354,030
Balance beginning of the period at Dec. 31, 2018	$ 1,257,638	$ 1,034	$ 745,926	$ 550,374	$ (39,696)
Comprehensive income:
Net income	25,044			25,044
Other comprehensive income, net	4,661				4,661
Total comprehensive income	29,705			25,044	4,661
Acquisition of Union Community Bank (UCB) (in shares)		2,462,373
Acquisition of Union Community Bank (UCB)	43,288	$ 24	43,264
Exercise of stock options (in shares)		431,782
Exercise of stock options	4,658	$ 4	4,654
Stock-based compensation expense	1,200		1,200
Stock-based compensation forfeited (in shares)		(28,155)
Stock-based compensation forfeited	0
Dividends paid	(18,643)			(18,643)
Balance end of period (in shares) at Mar. 31, 2019		106,220,030
Balance end of the period at Mar. 31, 2019	1,316,276	$ 1,062	795,044	555,205	(35,035)
Balance beginning of the period (in shares) at Dec. 31, 2019		106,859,088
Balance beginning of the period at Dec. 31, 2019	1,353,285	$ 1,069	805,750	583,407	(36,941)
Comprehensive income:
Net income	7,939			7,939
Other comprehensive income, net	8,034				8,034
Total comprehensive income	15,973			7,939	8,034
Exercise of stock options (in shares)		87,305
Exercise of stock options	1,005		1,005
Stock-based compensation expense	1,495		1,495
Stock-based compensation forfeited (in shares)		(12,910)
Stock-based compensation forfeited	0
Dividends paid	(20,317)			(20,317)
Balance end of period (in shares) at Mar. 31, 2020		106,933,483
Balance end of the period at Mar. 31, 2020	$ 1,341,792	$ 1,069	$ 808,250	$ 561,380	$ (28,907)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Other comprehensive income, tax	$ (3,228)	$ (1,863)
Dividends paid, per share (in dollars per share)	$ 0.19	$ 0.18

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income	$ 7,939	$ 25,044
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	27,637	6,467
Net (gain)/loss on sale of assets	(1,918)	810
Net depreciation, amortization and accretion	1,413	1,285
Increase in other assets	(38,950)	(41,336)
Increase in other liabilities	49,956	36,106
Net amortization on marketable securities	233	236
Noncash compensation expense related to stock benefit plans	1,495	1,200
Noncash write-down of real estate owned	100	160
Origination of loans held-for-sale	(29,912)	0
Proceeds from sale of loans held-for-sale	32,309	0
Net cash provided by operating activities	50,302	29,972
Investing activities:
Purchase of marketable securities available-for-sale	(20,610)	(20,219)
Proceeds from maturities and principal reductions of marketable securities held-to-maturity	825	1,090
Proceeds from maturities and principal reductions of marketable securities available-for-sale	86,354	31,282
Proceeds from sale of marketable securities available-for-sale	0	32,319
Proceeds from bank-owned life insurance	0	2,207
Loan originations	(866,950)	(763,848)
Proceeds from loan maturities and principal reductions	787,243	649,597
Proceeds from sale of loans held for investment	50,791	0
Net proceeds of Federal Home Loan Bank stock	1,609	3,555
Proceeds from sale of real estate owned	168	1,078
Proceeds from sale of real estate owned for investment, net	152	152
Purchase of premises and equipment	(3,553)	(3,478)
Acquisitions, net of cash received	0	(25,833)
Net cash provided/(used) in investing activities	36,029	(92,098)
Financing activities:
Net increase in deposits	200,728	218,966
Net decrease in short-term borrowings	(54,737)	(120,308)
Increase in advances by borrowers for taxes and insurance	2,598	1,587
Cash dividends paid on common stock	(20,317)	(18,643)
Proceeds from stock options exercised	1,005	4,658
Net cash provided by financing activities	129,277	86,260
Net increase in cash and cash equivalents	215,608	24,134
Cash and cash equivalents at beginning of period	60,846	68,789
Cash and cash equivalents at end of period	276,454	92,923
Cash paid during the period for:
Interest on deposits and borrowings (including interest credited to deposit accounts of $9,907 and $9,364, respectively)	13,458	11,940
Income taxes	556	1,747
Business acquisitions:
Fair value of assets acquired	0	580,407
Northwest Bancshares, Inc. common stock issued	0	(43,288)
Net cash paid	0	(42,500)
Liabilities assumed	0	494,619
Non-cash activities:
Loan foreclosures and repossessions	$ 1,351	$ 1,492

CONSOLIDATED STATEMENTS OF CA_2

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Cash Flows [Abstract]
Interest on deposits and borrowings, interest credited to deposit accounts	$ 9,907	$ 9,364

Basis of Presentation and Infor

Basis of Presentation and Informational Disclosures	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Informational Disclosures	Basis of Presentation and Informational Disclosures Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a savings and loan holding company regulated by the Board of Governors of the Federal Reserve System. The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”). Northwest is regulated by the Federal Deposit Insurance Corporation ("FDIC") and the Pennsylvania Department of Banking. Northwest operates 178 community-banking offices throughout Pennsylvania, Western New York, and eastern Ohio. The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, and The Bert Company (doing business as Northwest Insurance Services). The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information or footnotes required for complete annual financial statements. In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included. The consolidated financial statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 updated, as required, for any new pronouncements or changes. Certain items previously reported have been reclassified to conform to the current year's reporting format. The results of operations for the quarter ended March 31, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 , or any other period. Stock-Based Compensation Stock-based compensation expense of $1.5 million and $1.2 million for the quarters ended March 31, 2020 and 2019 , respectively, was recognized in compensation expense relating to our stock benefit plans. At March 31, 2020 , there was compensation expense of $3.3 million to be recognized for awarded but unvested stock options and $16.3 million for unvested restricted common shares. Income Taxes-Uncertain Tax Positions Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return. A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits. The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At March 31, 2020 , we had no liability for unrecognized tax benefits. We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income. We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2019 , 2018 , 2017 and 2016. Recently Adopted Accounting Standards On January 1, 2020, the Company adopted Accounting Standards Update ("ASU") 2016-13, " Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments , which eliminated the probable initial recognition threshold for credit losses and instead requires that all financial assets (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected inclusive of the entity’s current estimate of all lifetime expected credit losses. This guidance also applies to certain off-balance sheet credit exposures such as unfunded commitments and non-derivative financial guarantees. In addition, ASC 326 made changes to the accounting for available-for-sale debt securities. ASC 326 requires credit losses to be presented as an allowance, rather than a write-down, on available-for-sale debt securities management does not intend to sell or believes that it is more likely than not they will be required to sell. We adopted ASC 326 using the modified retrospective transition approach for all financial assets measured at amortized cost and off-balance sheet credit exposures. As a result, the Company was not required to adjust its comparative period financial information for effects of the standard or make the new required ASC 326 disclosures for periods before the date of adoption (i.e., January 1, 2020). As a result of the adoption of ASU 2016-13, we recognized an increase to the allowance for credit losses of $10.8 million , an increase to our reserve for off-balance sheet exposures of $2.3 million , an increase in deferred tax assets of $2.9 million and a cumulative-effect adjustment to retained earnings of $9.6 million , net of taxes, on the Consolidated Statements of Financial Condition as of January 1, 2020, with no impact on our Consolidated Statement of Income or Consolidated Statement of Cash Flows. Additionally, the adoption of CECL did not impact our held-to-maturity or our available-for-sale securities portfolio, which are primarily comprised of agency-backed mortgage securities. We also adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (PCD) that were previously classified as purchased credit impaired (PCI) and accounted for under ASC 310-30. In accordance with ASC 326, we did not reassess whether PCI assets met the criteria for PCD assets as of the date of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $517,000 of allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, 2020. We have elected to phase the estimated impact of CECL into regulatory capital in accordance with the interim final rule of the FRB and other U.S. banking agencies that became effective on March 31, 2020. As a result, we will delay recognizing the estimated impact of CECL on regulatory capital until after a two-year deferral period, which for us extends through December 31, 2021. Beginning on January 1, 2022, we will be required to phase in 25% of the previously deferred estimated capital impact of CECL, with an additional 25% to be phased in at the beginning of each subsequent year until fully phased in by the first quarter of 2025. Under the interim final rule, the estimated impact of CECL on regulatory capital that we will defer and later phase in is calculated as the entire day-one impact at adoption plus 25% of the subsequent change in allowance during the two-year deferral period. Adoption of this standard resulted to changes in our Investment Securities, Loans Receivable and Allowance for Credit Loss and Provision for Credit Losses accounting policies as presented below. Refer to Note 1 to the Consolidated Financial Statements in our 2019 Annual Report on Form 10-K regarding additional significant accounting policies, including policies in effect prior to the adoption of the CECL standard. Investment Securities We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading. Securities for which management has the intent and ability to hold until maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/ liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/(loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or during the quarter ended March 31, 2020 . On a quarterly basis, we measure expected credit losses on held-to-maturity debt securities on a collective basis by major security type and all of our held-to-maturity debt securities are residential mortgage-backed securities. Accrued interest receivable on held-to-maturity debt securities totaled $1.3 million and $1.5 million at March 31, 2020 and December 31, 2019 , respectively, and is excluded from estimated credit losses. All of our residential mortgage-backed securities are issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. For available-for-sale debt securities in an unrealized loss position, on at least a quarterly basis, we review our investments for impairment. An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. We consider both our intent to sell and the likelihood that we will not have to sell the investment securities before recovery of their amortized cost basis during our evaluation. If we intend to sell the investment security or if it is more likely than not that we will be required to sell the investment security, the entire impairment is recorded in earnings. For available-for-sale debt securities that do not meet this criteria, we evaluate whether the decline in fair value has resulted from credit losses or other factors. In making this assessment we consider the issuer of the securities and their creditworthiness, any changes to the rating of the security and any adverse conditions specifically related to the security, among other factors. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when we believe the uncollectibility of an available-for-sale security is confirmed or when there is an intent or requirement to sell the security. Accrued interest receivable on available-for-sale debt securities totaled $1.0 million and $900,000 at March 31, 2020 and December 31, 2019 , respectively, and is excluded from the estimate of credit losses. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days past due. The receivable for interest income that is accrued but not collected is reversed against interest income when the debt security is placed on nonaccrual status. Loans Receivable Our portfolio segments are based on the class of financing receivable. Additionally, the class of financing receivables are based on several factors including the method for monitoring and assessing credit risk and the risk characteristics of the financing receivables. Based on evaluation of the nature of our financing receivables, along with the nature and extent of exposure to credit risk arising from these receivables, our portfolio segments were determined to be Personal Banking and Business Banking loans. • Personal Banking loans consist of the following classes of financing receivables: ◦ Residential mortgage loans - fixed and adjustable rate mortgage loans ◦ Home equity loans - first and second mortgage loans and home equity lines of credit ◦ Vehicle loans - direct and indirect automobile and motorcycle loans ◦ Consumer loans - unsecured lines of credit, credit card loans, and other consumer loans • Business Banking loans consist of the following classes of financing receivables: ◦ Commercial real estate - multi-family commercial real estate loans are secured by multi-family residences, such as rental properties and loans secured by nonresidential properties such as hotels, commercial offices, medical buildings, manufacturing facilities and retail establishments, excluding owner-occupied loans, and including small business commercial real estate loans. ◦ Commercial real estate - owner-occupied loans - commercial real estate loans secured by residential or nonresidential properties ◦ Commercial loans - other commercial loans, including small business commercial loans. Loans are reported at amortized cost. Amortized cost is the principal balance outstanding, net of any deferred purchased premiums and discounts, deferred origination fees or costs and the allowance for credit losses. Accrued interest receivable totaled $23.2 million and $23.3 million at March 31, 2020 and December 31, 2019 , respectively, and was reported in accrued interest receivable on the Consolidated Statements of Financial Position. Accrued interest receivable is excluded from the amortized cost basis of loans and from the estimate of allowance for credit losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed and such loans are placed on nonaccrual status. All loans are placed on nonaccrual status when principal or interest is 90 days or more delinquent or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all nonaccrual loans are recognized as interest income when it has been determined that all principal and interest will be collected or are applied to principal when collectability of contractual principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months. A loan is considered to be a troubled debt restructuring loan ("TDR") when the borrower is experiencing financial difficulties and the restructuring constitutes a concession. TDRs may include modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified as a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk. Loan delinquency is measured based on the number of days since the payment due date. Past due status is measured using the loan’s contractual maturity date. Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible or when it has been determined that the collateral value no longer supports the carrying value of the loan for loans that are collateral dependent. Loan fees and certain direct loan origination costs are deferred and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income. We identify certain residential mortgage loans which will be sold prior to maturity as loans held-for-sale. These loans are recorded at the lower of amortized cost or fair value less estimated cost to sell. At March 31, 2020 and 2019, there were $6.4 million and no residential mortgage loans classified as held-for-sale, respectively. Acquired loans that are not considered PCD are initially measured at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. Acquired loans may be classified as PCD loans upon acquisition if they have experienced more than insignificant credit deterioration since origination. Loans are considered to have experienced more than insignificant credit deterioration if they are greater than 30 days past due, classified special mention or worse or on non-accrual status. PCD loans are recorded at the amount paid. An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The sum of the loans, purchase price and allowance for credit losses becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision expense. Upon adoption of ASC 326, we assessed our legacy loans that were previously accounted for under ASC 310-30 to determine whether they share similar risk characteristics and whether some or all of the assets should be assessed collectively with other loans that share similar risk characteristics. Upon adoption, an allowance for credit losses was determined for each loan and added to the loan's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the loan and the new amortized cost is the noncredit premium or discount which will be amortized into interest income over the remaining life of the loan. Changes to the allowance for credit losses after adoption are recorded through provision expense. Allowance for Credit Losses and Provision for Credit Losses The allowance for credit losses is deducted from, or added to, the loan’s amortized cost basis to present the net amount expected to be collected on our lending portfolios. We estimate the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Loans are charged off against the allowance when we believe the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Expected credit losses are estimated over the contractual term of the loans, adjusted for prepayments. The contractual term excludes expected extensions, renewals and modifications unless we had a reasonable expectation at the reporting date that a TDR will be executed for an individual borrower or the extension or renewal option is included in the contract and is not unconditionally cancellable by the Company. Credit card receivables do not have stated maturities. In determining the estimated life of a credit card receivable, we first estimate the future cash flows expected to be received and then apply those expected future cash flows to the credit card balance. Expected credit losses for credit cards are determined by estimating the amount and timing of principal payments expected to be received as payment for the balance outstanding as of the reporting date and applying those principal payments against the balance outstanding as of the reporting period until the expected payments have been fully allocated. The allowance for credit losses is recorded for the excess of the balance outstanding as of the reporting period over the expected principal payments. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. For the purpose of calculating portfolio-level reserves, we have grouped our loans into seven segments: residential mortgage loans, home equity loans, vehicle loans, consumer loans, commercial real estate loans, commercial real estate owner-occupied and commercial loans. The allowance for credit losses is measured at the loan-level wherever possible, but it is sometimes measured at the portfolio level when there is no added benefit to being measured at the loan-level. We use a twenty four month forecasting period and revert to historical average loss rates thereafter. Reversion to the mean takes place over a twelve month period. Historical average loss rates are calculated using historical data beginning in October 2009 through the current period. Mortgage and Home Equity Loans The allowance for credit losses within the mortgage and home equity loan classes is calculated at the loan-level using a proprietary statistical model developed by an external third-party. These classes are further divided into smaller pools of loans with similar risk characteristics such as: lines versus loans, fixed versus variable, senior lien position versus junior lien position, among other things. For each pool, the models project default rates, prepayment rates, and severity rates. The models accept as inputs key risk drivers such as: current balance, original credit bureau score, original loan-to-value ratio, type of collateral, location of collateral, delinquency status, loan age, among other characteristics. They also utilize macroeconomic forecasts of home price indices, unemployment rates, gross domestic product, and others. Vehicle Loans The allowance for credit losses within the vehicle loan portfolio is calculated at the portfolio-level using a proprietary statistical model developed internally with the assistance of an external third-party. The allowance for vehicle loans utilizes a vintage analysis to project portfolio-level net charge-off rates. The class is further divided into short term versus long term loans, prime versus subprime borrowers, and origination vintage. This model uses current balance, original credit bureau score, original debt-to-income ratio, loan term, loan age, and other product characteristics as key risk drivers. The model used for vehicle loans is not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. Consumer Loans The allowance for losses within the consumer loan portfolio is calculated at the portfolio-level using a suite of proprietary statistical models developed internally with the assistance of an external third-party. This class of financing receivables is further divided into credit cards, unsecured lines of credit and other consumer loans. The allowance for credit cards and unsecured lines of credit is calculated using two transition matrix models to project portfolio-level net charge-off rates. Both models use current balance and delinquency status as key risk drivers. These models are not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. For other consumer loans, a regression model is used to project portfolio-level net charge-off rates. This model uses borrower information and macroeconomic forecasts as key inputs. Commercial Real Estate Loans The commercial real estate loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial real estate loans and small business commercial real estate loans. The allowance for credit losses for the commercial real estate loan portfolio is calculated at loan-level using a proprietary statistical model developed by an external third-party. This model projects default and severity rates. The model accepts as inputs key risk drivers such as: current balance, original loan-to-value-ratio, type of collateral, location of collateral, delinquency status, loan age, obligor financial statement information, and expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of commercial real estate price indices, unemployment rates, gross domestic product and others. The allowance for credit losses is calculated for commercial real estate small business loans at the portfolio-level using a proprietary statistical model. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Commercial Loans and Commercial Real Estate - Owner Occupied Loans The allowance for credit losses for the commercial loan portfolio and the commercial real estate - owner occupied loan portfolio is calculated at loan-level using a proprietary statistical model developed by an external third-party. The commercial loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial loans and commercial small business loans. The commercial loan portfolio and the commercial real estate owner occupied loan portfolio the models project default and severity rates. The model accepts as inputs key risk drivers such as the obligor financial statement information, collateral type, the obligor’s primary industry, expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of unemployment rates, gross domestic product, corporate bond spreads, and others. The allowance for credit losses for commercial small business loans is calculated at the portfolio-level using a proprietary statistical model. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When we determine that foreclosure is probable or when the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. If this criteria is not met, a discounted cash flow method is used to determine the allowance for credit losses. All changes in the discounted cash flow method over time are reported in the allowance for credit losses. The allowance calculation is also supplemented with qualitative reserves that takes into consideration current portfolio and specific risk characteristics, such as changes in underwriting standards, portfolio mix, delinquency level, or term, as well as changes in environmental conditions, among other factors, that have occurred but are not yet reflected in the quantitative model component. The allowance for credit losses on a TDR is measured using the same method as all other loans held for investment, except when the value of the concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit losses is determined by discounting the expected future cash flows at the original interest rate of the loan. For off-balance sheet credit exposures, we estimate expected credit losses over the contractual period in which we are exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable. The liability for credit losses on off-balance sheet credit exposures is adjusted through a provision for credit loss expense and is included within "other expenses". We estimate the liability balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. The estimate includes a consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Off-balance-sheet exposures that are not unconditionally cancellable have been identified for the home equity, commercial real estate, and commercial loan portfolios. 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.” This guidance removes, modifies and adds disclosure requirements for fair value measurements. On January 1, 2020, the Company adopted ASU 2018-13 on a prospective basis for the new and modified disclosures, and on a retrospective basis for disclosures that have been eliminated. The adoption of this standard did not have any effect on our results of operations or financial position. Refer to Note 9, "Disclosures About Fair Value of Financial Instruments". 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.” This guidance aligns the requirements for capitalization of implementation costs incurred in a hosting arrangement that is a service contract with the existing guidance for internal-use software. On January 1, 2020, the Company adopted ASU 2018-15 on a prospective basis which will be applied to relevant implementation costs incurred after the date of adoption. The adoption of this standard is not expected to have a material prospective impact on our financial statements.

Marketable Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Securities The following table shows the portfolio of marketable securities available-for-sale at March 31, 2020 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by government sponsored enterprises: Due in less than one year $ 50,761 475 — 51,236 Due in one year through five years 25,227 284 — 25,511 Due in five years through ten years 3,411 114 (103 ) 3,422 Municipal securities: Due in less than one year 812 3 — 815 Due in one year through five years 2,897 68 — 2,965 Due in five years through ten years 8,903 178 — 9,081 Due after ten years 31,400 436 — 31,836 Residential mortgage-backed securities: Fixed rate pass-through 130,729 4,453 (10 ) 135,172 Variable rate pass-through 18,025 403 (8 ) 18,420 Fixed rate agency CMOs 423,625 10,447 (60 ) 434,012 Variable rate agency CMOs 53,913 62 (866 ) 53,109 Total residential mortgage-backed securities 626,292 15,365 (944 ) 640,713 Total marketable securities available-for-sale $ 749,703 16,923 (1,047 ) 765,579 The following table shows the portfolio of marketable securities available-for-sale at December 31, 2019 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in less than one year $ 14,951 40 — 14,991 Debt issued by government sponsored enterprises: Due in less than one year 50,777 345 — 51,122 Due in one year through five years 50,229 — (227 ) 50,002 Due after ten years 3,716 53 (109 ) 3,660 Municipal securities: Due in less than one year 809 4 — 813 Due in one year through five years 2,891 79 — 2,970 Due in five years through ten years 10,155 148 — 10,303 Due after ten years 11,695 267 — 11,962 Corporate debt issues: Due in five years through ten years 919 — — 919 Residential mortgage-backed securities: Fixed rate pass-through 142,421 1,941 (881 ) 143,481 Variable rate pass-through 18,933 749 (4 ) 19,678 Fixed rate agency CMOs 452,256 3,518 (1,606 ) 454,168 Variable rate agency CMOs 55,743 207 (118 ) 55,832 Total residential mortgage-backed securities 669,353 6,415 (2,609 ) 673,159 Total marketable securities available-for-sale $ 815,495 7,351 (2,945 ) 819,901 The following table shows the portfolio of marketable securities held-to-maturity at March 31, 2020 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Residential mortgage-backed securities: Fixed rate pass-through $ 2,096 113 — 2,209 Variable rate pass-through 1,119 15 — 1,134 Fixed rate agency CMOs 13,389 639 — 14,028 Variable rate agency CMOs 604 1 (8 ) 597 Total residential mortgage-backed securities 17,208 768 (8 ) 17,968 Total marketable securities held-to-maturity $ 17,208 768 (8 ) 17,968 The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2019 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Residential mortgage-backed securities: Fixed rate pass-through $ 2,197 83 — 2,280 Variable rate pass-through 1,210 28 — 1,238 Fixed rate agency CMOs 14,016 68 — 14,084 Variable rate agency CMOs 613 8 — 621 Total residential mortgage-backed securities 18,036 187 — 18,223 Total marketable securities held-to-maturity $ 18,036 187 — 18,223 The following table shows the contractual maturity of our marketable securities held-to-maturity at March 31, 2020 (in thousands): Amortized cost Fair value Residential mortgage-backed securities: Due in less than one year $ 1 1 Due in one year through five years 599 626 Due after five years through ten years 929 981 Due after ten years 15,679 16,360 Total residential mortgage-backed securities 17,208 17,968 Total marketable securities held-to-maturity $ 17,208 17,968 The following table shows the fair value of and gross unrealized losses on available-for-sale marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at March 31, 2020 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ — — 2,320 (103 ) 2,320 (103 ) Residential mortgage-backed securities - agency 46,190 (847 ) 9,167 (97 ) 55,357 (944 ) Total temporarily impaired securities $ 46,190 (847 ) 11,487 (200 ) 57,677 (1,047 ) The following table shows the fair value of and gross unrealized losses on marketable securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2019 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ — — 52,620 (336 ) 52,620 (336 ) Residential mortgage-backed securities - agency 173,112 (858 ) 109,324 (1,751 ) 282,436 (2,609 ) Total temporarily impaired securities $ 173,112 (858 ) 161,944 (2,087 ) 335,056 (2,945 ) The Company does not believe that the available-for-sale debt securities that were in an unrealized loss position as of March 31, 2020 , which comprised of 83 individual securities, represents a credit loss impairment. All of these securities were issued by U.S. government agencies or U.S. government-sponsored agencies. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The unrealized losses were primarily attributable to changes in the interest rate environment and not due to the credit quality of these investment securities. The Company doe not have the intent to sell these investment securities and it is likely that we will not be required to sell these securities before their anticipated recovery, which may be at maturity. All of the Company's held-to-maturity debt securities are issued by by U.S. government agencies or U.S. government-sponsored agencies. There securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. Therefore, the Company did not record an allowance for credit losses for these securities as of March 31, 2020 . The following table presents the credit quality of our held-to-maturity securities, based on latest information available as of March 31, 2020 . The credit ratings are sourced from nationally recognized rating agencies, which include Moody's and S&P, or when credit ratings cannot be sourced from the agencies, they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of March 31, 2020 . AA+ Total Held-to-maturity securities: Residential mortgage-backed securities $ 17,208 17,208 Total marketable securities held-to-maturity $ 17,208 17,208

Loans Receivable

Loans Receivable	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Loans Receivable	Loans Receivable The following table shows a summary of our loans receivable at amortized cost basis at March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,758,695 76,038 2,834,733 2,785,189 82,938 2,868,127 Home equity loans 1,129,370 231,284 1,360,654 1,100,023 243,404 1,343,427 Vehicle loans 929,204 7,623 936,827 850,804 10,388 861,192 Consumer loans 243,169 6,743 249,912 237,834 25,597 263,431 Total Personal Banking 5,060,438 321,688 5,382,126 4,973,850 362,327 5,336,177 Commercial Banking: Commercial real estate loans 1,953,458 309,540 2,262,998 1,915,949 312,160 2,228,109 Commercial real estate loans - owner occupied 416,283 71,477 487,760 433,099 93,182 526,281 Commercial loans 650,349 53,641 703,990 664,159 53,948 718,107 Total Commercial Banking 3,020,090 434,658 3,454,748 3,013,207 459,290 3,472,497 Total loans receivable, gross 8,080,528 756,346 8,836,874 7,987,057 821,617 8,808,674 Allowance for credit losses (82,431 ) (10,466 ) (92,897 ) (51,439 ) (6,502 ) (57,941 ) Total loans receivable, net (2) $ 7,998,097 745,880 8,743,977 7,935,618 815,115 8,750,733 (1) Includes $6.4 million and $7.7 million of loans held-for-sale at March 31, 2020 and December 31, 2019 , respectively. (2) Includes $ 44.7 million and $ 40.2 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at March 31, 2020 and December 31, 2019 , respectively. The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended March 31, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands): Balance as of March 31, 2020 Current period provision Charge-offs Recoveries Cumulative effect of ASU 2016-13* Balance as of Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 10,673 894 (343 ) 107 7,441 2,574 Home equity loans 9,786 895 (289 ) 205 5,786 3,189 Vehicle loans 11,994 5,359 (1,843 ) 344 842 7,292 Consumer loans 5,166 3,518 (1,645 ) 416 (2,424 ) 5,301 Total Personal Banking 37,619 10,666 (4,120 ) 1,072 11,645 18,356 Commercial Banking: Commercial real estate loans 29,380 11,269 (310 ) 290 2,288 15,843 Commercial real estate loans - owner occupied 8,374 1,365 (21 ) 7 1,278 5,745 Commercial loans 17,524 4,337 (815 ) 424 (4,419 ) 17,997 Total Commercial Banking 55,278 16,971 (1,146 ) 721 (853 ) 39,585 Total $ 92,897 27,637 (5,266 ) 1,793 10,792 57,941 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Home equity loans 34 4 — — (293 ) 323 Consumer loans — — — — (402 ) 402 Total Personal Banking 34 4 — — (695 ) 725 Commercial Banking: Commercial real estate loans 3,294 1,283 — — 1,934 77 Commercial real estate loans - owner occupied 95 4 — — 88 3 Commercial loans 1,281 189 — — 923 169 Total Commercial Banking 4,670 1,476 — — 2,945 249 Total off-balance sheet exposure $ 4,704 1,480 — — 2,250 974 * Includes the impact of the initial allowance on PCD loans of $517,000 . The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended March 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Balance as of March 31, 2019 Current period provision Charge-offs Recoveries Balance as of Originated loans Personal Banking: Residential mortgage loans $ 4,005 186 (349 ) 114 4,054 Home equity loans 3,062 (35 ) (112 ) 25 3,184 Consumer loans 11,535 2,822 (2,988 ) 621 11,080 Total Personal Banking 18,602 2,973 (3,449 ) 760 18,318 Commercial Banking: Commercial real estate loans 25,470 (464 ) (569 ) 124 26,379 Commercial loans 7,639 874 (457 ) 168 7,054 Total Commercial Banking 33,109 410 (1,026 ) 292 33,433 Total originated loans 51,711 3,383 (4,475 ) 1,052 51,751 Acquired loans Personal Banking: Residential mortgage loans 92 8 (8 ) 9 83 Home equity loans 399 45 (42 ) 48 348 Consumer loans 454 34 (32 ) 33 419 Total Personal Banking 945 87 (82 ) 90 850 Commercial Banking: Commercial real estate loans 2,467 255 (35 ) 251 1,996 Commercial loans 598 2,742 (2,813 ) 52 617 Total Commercial Banking 3,065 2,997 (2,848 ) 303 2,613 Total acquired loans 4,010 3,084 (2,930 ) 393 3,463 Total $ 55,721 6,467 (7,405 ) 1,445 55,214 During the quarter ended March 31, 2020 , we sold $50 million of loans that were classified as held-for-investment, for a gain of $1.3 million , which is reported in gain on sale of loans on the Consolidated Statements of Income. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at March 31, 2020 (in thousands): Total loans receivable Allowance for credit losses Nonaccrual loans (1) Loans 90 days past due and accruing TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,834,733 10,673 11,651 — 7,183 865 — Home equity loans 1,360,654 9,786 7,106 31 1,906 467 26 Vehicle loans 936,827 11,994 3,231 — — — — Consumer loans 249,912 5,166 936 — — — — Total Personal Banking 5,382,126 37,619 22,924 31 9,089 1,332 26 Commercial Banking: Commercial real estate loans 2,262,998 29,380 26,384 — 12,460 1,010 71 Commercial real estate loans - owner occupied 487,760 8,374 15,887 — 6,511 625 5 Commercial loans 703,990 17,524 20,236 — 5,292 1,981 559 Total Commercial Banking 3,454,748 55,278 62,507 — 24,263 3,616 635 Total $ 8,836,874 92,897 85,431 31 33,352 4,948 661 (1) Includes $17.4 million of nonaccrual TDRs. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Total loans receivable Allowance for credit losses Nonaccrual loans (1) Loans 90 days past due and accruing TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,868,127 2,574 14,476 — 7,550 560 — Home equity loans 1,342,918 3,189 6,745 32 1,973 393 26 Consumer loans 1,125,132 12,593 4,226 — — — — Total Personal Banking 5,336,177 18,356 25,447 32 9,523 953 26 Commercial Banking: Commercial real estate loans 2,754,390 21,588 34,864 — 19,358 1,384 476 Commercial loans 718,107 17,997 8,559 — 3,118 665 64 Total Commercial Banking 3,472,497 39,585 43,423 — 22,476 2,049 540 Total $ 8,808,674 57,941 68,870 32 31,999 3,002 566 (1) Includes $9.0 million of nonaccrual TDRs. Following the adoption of CECL as of January 1, 2020, the definitions of impairment and related impaired loan disclosures were removed. Under CECL, we present the amortized cost of our loans on nonaccrual status including such loans with no allowance. The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the quarter ended March 31, 2020 (in thousands): Nonaccrual loans at January 1, 2020 Nonaccrual loans at March 31, 2020 with an allowance Nonaccrual loans with no allowance Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 14,476 11,651 — — Home equity loans 6,745 7,106 — 31 Vehicle loans 3,147 3,231 — — Consumer loans 1,079 936 — — Total Personal Banking 25,447 22,924 — 31 Commercial Banking: Commercial real estate loans 18,832 22,730 3,654 — Commercial real estate loans - owner occupied 16,032 12,136 3,751 — Commercial loans 8,559 18,838 1,398 — Total Commercial Banking 43,423 53,704 8,803 — Total $ 68,870 76,628 8,803 31 During the three months ended March 31, 2020, we recognized $ 217,000 of interest income on nonaccrual loans. The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of March 31, 2020 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 6,677 — — 6,677 Home equity loans 99 — — 99 Vehicle loans — — 1,569 1,569 Consumer loans — — — — Total Personal Banking 6,776 — 1,569 8,345 Commercial Banking: Commercial real estate loans 13,922 — — 13,922 Commercial real estate loans - owner occupied 5,841 — — 5,841 Commercial loans 3,927 11,717 — 15,644 Total Commercial Banking 23,690 11,717 — 35,407 Total $ 30,466 11,717 1,569 43,752 The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 12,682 1,794 — 6,817 21,293 19,767 688 Home equity loans 5,635 1,110 — 1,654 8,399 8,571 368 Consumer loans 3,610 616 — — 4,226 3,842 179 Total Personal Banking 21,927 3,520 — 8,471 33,918 32,180 1,235 Commercial Banking: Commercial real estate loans 25,014 9,850 933 10,329 46,126 46,284 1,490 Commercial loans 4,739 3,820 15,916 1,474 25,949 10,179 345 Total Commercial Banking 29,753 13,670 16,849 11,803 72,075 56,463 1,835 Total $ 51,680 17,190 16,849 20,274 105,993 88,643 3,070 The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable at December 31, 2019 prior to the adoption of ASU 2016-13 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,860,026 8,101 8,101 560 — Home equity loans 1,340,944 1,974 1,974 393 — Consumer loans 1,125,123 9 9 3 — Total Personal Banking 5,326,093 10,084 10,084 956 — Commercial Banking: Commercial real estate loans 2,718,855 35,535 29,578 2,679 5,957 Commercial loans 694,424 23,683 18,337 8,127 5,346 Total Commercial Banking 3,413,279 59,218 47,915 10,806 11,303 Total $ 8,739,372 69,302 57,999 11,762 11,303 Our loan portfolios include loans that have been modified in a TDR, where concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from our loss mitigation activities and could include: extending the note’s maturity date, permitting interest only payments, reducing the interest rate to a rate lower than current market rates for new debt with similar risk, reducing the principal payment, principal forbearance or other actions. These concessions are applicable to all loan segments and classes. Certain TDRs are classified as nonperforming at the time of restructuring and may be returned to performing status after considering the borrower’s sustained repayment performance for a period of at least six months. When we modify loans in a TDR, we evaluate any possible impairment similar to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, the loan’s observable market price or the current fair value of the collateral, less selling costs, for collateral dependent loans. If we determine that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premiums or discounts), impairment is recognized through an allowance estimate or a charge-off to the allowance. In periods subsequent to modification, we evaluate all TDRs, including those that have payment defaults, for possible impairment in accordance with ASC 310-10. As a result, loans modified in a TDR may have the financial effect of increasing the specific allowance associated with the loan. Loans modified in a TDR are closely monitored for delinquency as an early indicator of possible future default. If loans modified in a TDR subsequently default, we evaluate the loan for possible further impairment. The allowance may be increased, adjustments may be made in the allocation of the allowance, partial charge-offs may be taken to further write-down the carrying value of the loan, or the loan may be charged-off completely. In March 2020, a joint statement was issued by federal and state regulatory agencies, after consultation with the FASB, to clarify that short-term loan modifications are not TDRs if made on a good-faith basis in response to COVID-19 to borrowers who were current prior to any relief. Under this guidance, six months is provided as an example of short-term, and current is defined as less than 30 days past due at the time the modification program is implemented. The guidance also provides that these modified loans generally will not be classified as nonaccrual during the term of the modification. For borrowers who are 30 days or more past due when enrolling in a loan modification program related to the COVID-19 pandemic, we evaluate the loan modifications under our existing TDR framework, and where such a loan modification would result in a concession to a borrower experiencing financial difficulty, the loan will be accounted for as a TDR and will generally not accrue interest. The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands): For the quarter ended March 31, 2020 2019 Number of contracts Amount Number of contracts Amount Beginning TDR balance: 176 $ 31,999 195 $ 33,608 New TDRs 2 2,518 — — Re-modified TDRs 2 2,076 — — Net paydowns — (2,841 ) — (796 ) Charge-offs: Residential mortgage loans — — — — Home equity loans 1 (10 ) — — Vehicle loans — — — — Commercial real estate loans — — — — Commercial real estate loans - owner occupied — — — — Commercial loans — — — — Paid-off loans: Residential mortgage loans 2 (330 ) — — Home equity loans — — — — Vehicle loans — — — — Commercial real estate loans 1 (26 ) — — Commercial real estate loans - owner occupied — — — — Commercial loans 3 (34 ) — — Ending TDR balance: 171 $ 33,352 195 $ 32,812 Accruing TDRs $ 15,977 $ 17,861 Non-accrual TDRs 17,375 14,951 The following tables provide information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands): For the quarter ended March 31, 2020 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Personal Banking: Residential mortgage loans — $ — — — Home equity loans 1 19 18 — Vehicle loans — — — — Consumer loans — — — — Total Personal Banking 1 19 18 — Commercial Banking: Commercial real estate loans — — — — Commercial real estate loans - owner occupied 2 2,077 2,076 176 Commercial loans 1 2,500 2,500 1,628 Total Commercial Banking 3 4,577 4,576 1,804 Total 4 $ 4,596 4,594 1,804 The following table provides information as of March 31, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended March 31, 2020 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans 1 — — 18 — 18 Vehicle loans — — — — — — Consumer loans — — — — — — Total Personal Banking 1 — — 18 — 18 Commercial Banking: Commercial real estate loans — — — — — — Commercial real estate loans - owner occupied 2 — — 2,076 — 2,076 Commercial loans 1 — — — 2,500 2,500 Total Commercial Banking 3 — — 2,076 2,500 4,576 Total 4 $ — — 2,094 2,500 4,594 During the quarter-ended March 31, 2019 there were no new TDRs. Additionally, no TDR's modified within the previous 12 months of March 31, 2019 or March 31, 2020 subsequently defaulted. The following table provides information related to the amortized cost basis of loan payment delinquencies at March 31, 2020 (in thousands): 30-59 days delinquent 60-89 days delinquent 90 days or greater delinquent Total delinquency Current Total loans receivable 90 days or greater delinquent and accruing (1) Personal Banking: Residential mortgage loans $ 35,322 522 10,538 46,382 2,788,351 2,834,733 — Home equity loans 7,064 2,682 5,960 15,706 1,344,948 1,360,654 31 Vehicle loans 6,896 2,254 2,787 11,937 924,890 936,827 — Consumer loans 3,251 809 960 5,020 244,892 249,912 — Total Personal Banking 52,533 6,267 20,245 79,045 5,303,081 5,382,126 31 Commercial Banking: Commercial real estate loans 10,829 2,426 17,919 31,175 2,231,823 2,262,998 — Commercial real estate loans - owner occupied 2,094 568 7,597 10,259 477,501 487,760 — Commercial loans 7,548 315 16,860 24,723 679,267 703,990 — Total Commercial Banking 20,471 3,309 42,376 66,157 3,388,591 3,454,748 — Total loans $ 73,004 9,576 62,621 145,202 8,691,672 8,836,874 31 The following table provides information related to loan payment delinquencies at December 31, 2019 (in thousands): 30-59 days delinquent 60-89 days delinquent 90 days or greater delinquent Total delinquency Current Total loans receivable 90 days or Originated loans Personal Banking: Residential mortgage loans $ 20,447 5,572 11,080 37,099 2,748,090 2,785,189 — Home equity loans 5,119 2,096 4,573 11,788 1,088,136 1,100,023 — Consumer loans 8,969 3,198 3,467 15,634 1,073,103 1,088,638 — Total Personal Banking 34,535 10,866 19,120 64,521 4,909,329 4,973,850 — Commercial Banking: Commercial real estate loans 5,598 1,387 17,959 24,944 2,324,104 2,349,048 — Commercial loans 987 6,360 4,296 11,643 652,516 664,159 — Total Commercial Banking 6,585 7,747 22,255 36,587 2,976,620 3,013,207 — Total originated loans 41,120 18,613 41,375 101,108 7,885,949 7,987,057 — Acquired loans Personal Banking: Residential mortgage loans 2,849 121 1,695 4,665 78,273 82,938 93 Home equity loans 1,350 309 1,115 2,774 240,630 243,404 53 Consumer loans 239 104 144 487 35,498 35,985 1 Total Personal Banking 4,438 534 2,954 7,926 354,401 362,327 147 Commercial Banking: Commercial real estate loans 2,323 303 7,055 9,681 395,661 405,342 — Commercial loans 200 43 443 686 53,262 53,948 — Total Commercial Banking 2,523 346 7,498 10,367 448,923 459,290 — Total acquired loans 6,961 880 10,452 18,293 803,324 821,617 147 Total $ 48,081 19,493 51,827 119,401 8,689,273 8,808,674 147 (1) Represents acquired loans that were originally recorded at fair value upon acquisition. These loans are considered to be accruing because we can reasonably estimate future cash flows and expect to fully collect the carrying value of these loans. Therefore, we are accreting the difference between the carrying value and their expected cash flows into interest income. Credit Quality Indicators: For Commercial Banking loans we categorize loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. We analyze loans individually by classifying the loans by credit risk. Credit relationships greater than or equal to $1.0 million classified as special mention or substandard are reviewed quarterly for deterioration or improvement to determine if the loan is appropriately classified. We use the following definitions for risk ratings other than pass: Special Mention — Loans designated as special mention have specific, well-defined risk issues, which create a high level of uncertainty regarding the long-term viability of the business. Loans in this class are considered to have high-risk characteristics. A special mention loan exhibits material negative financial trends due to company-specific or systemic conditions. If these potential weaknesses are not mitigated, they threaten the borrower’s capacity to meet its debt obligations. Special mention loans still demonstrate sufficient financial flexibility to react to and positively address the root cause of the adverse financial trends without significant deviations from their current business strategy. Their potential weaknesses deserve our close attention and warrant enhanced monitoring. Substandard — Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. Doubtful — Loans classified as doubtful have all the weaknesses inherent in those classified as substandard. In addition, those weaknesses make collection or liquidation in full highly questionable and improbable. A loan classified as doubtful exhibits discernible loss potential, but a complete loss seems very unlikely. The possibility of a loss on a doubtful loan is high, but because of certain important and reasonably specific pending factors that may strengthen the loan, its classification as an estimated loss is deferred until a more exact status can be determined. Loss — Loans classified as loss are considered uncollectible and of such value that the continuance as a loan is not warranted. A loss classification does not mean that the loan has no recovery or salvage value; instead, it means that it is not practical or desirable to defer writing off all or a portion of a basically worthless loan even though partial recovery may be possible in the future. For Personal Banking loans a pass risk rating is maintained until they are greater than 90 days past due, and risk rating reclassification is based primarily on past due status of the loan. The risk rating categories can generally be described by the following groupings: Pass — A homogeneous loan that is less than 90 days past due from the required payment date at month-end. Substandard — A homogeneous loan that is greater than 90 days past due from the required payment date at month-end, is a TDR or is a PCD loan. A homogenous retail loan that is greater than 180 days past due from the requirement payment date at month-end that has been written down to the value of underlying collateral, less costs to sell. Doubtful — A homogeneous loan that is greater than 180 days past due from the required payment date at month-end and not written down to the value of underlying collateral. These loans are generally charged-off in the month in which the 180 day period elapses. Based on the most recent analysis performed, the amortized cost basis by risk category of loans by class of loans by origination year is as follows as of March 31, 2020 (in thousands): YTD March 31, 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving loans converted to term loans Total loans receivable Personal Banking: Residential mortgage loans Pass $ 123,025 475,573 288,056 293,228 229,808 1,405,981 — — 2,815,671 Substandard — — 108 564 216 18,174 — — 19,062 Total residential mortgage loans 123,025 475,573 288,163 293,792 230,024 1,424,155 — — 2,834,733 Home equity loans Pass 62,841 221,783 111,767 103,107 97,444 262,224 456,600 36,305 1,352,071 Substandard — 25 112 185 764 4,300 1,532 1,666 8,583 Total home equity loans 62,841 221,808 111,879 103,292 98,207 266,524 458,132 37,971 1,360,654 Vehicle loans Pass 126,861 428,865 246,493 80,750 36,919 14,147 — — 934,035 Substandard — 783 702 723 318 266 — — 2,792 Total vehicle loans 126,861 429,648 247,195 81,473 37,237 14,413 — — 936,827 Consumer loans Pass 25,967 96,581 29,891 13,869 5,552 5,559 68,590 2,942 248,951 Substandard — 252 61 79 19 28 430 92 961 Total consumer loans 25,967 96,833 29,952 13,948 5,571 5,587 69,020 3,034 249,912 Total Personal Banking 338,694 1,223,862 677,189 492,505 371,039 1,710,679 527,152 41,005 5,382,126 Business Banking: Commercial real estate loans Pass 72,226 303,571 260,769 276,681 197,330 767,889 228,723 5,952 2,113,142 Special Mention 105 2,063 7,209 35,698 6,297 8,888 4,989 801 66,051 Substandard 349 336 3,696 11,695 6,629 52,992 4,091 4,017 83,805 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial real estate loans 72,680 305,971 271,674 324,074 210,256 829,769 237,803 10,770 2,262,998 Commercial real estate loans - owner occupied Pass 2,615 65,489 93,389 79,888 45,873 121,067 11,180 3,440 422,940 Special Mention — 1,337 1,230 2,682 1,417 3,535 26 30 10,258 Substandard — 2,709 3,914 12,117 7,711 23,734 1,094 3,284 54,562 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial real estate loans - owner occupied 2,615 69,535 98,533 94,686 55,001 148,336 12,300 6,754 487,760 Commercial loans Pass 18,210 93,726 61,621 59,597 53,671 39,638 273,335 9,735 609,533 Special Mention — 5,811 1,922 551 6,981 717 26,634 418 43,034 Substandard 373 1,174 7,216 1,573 795 2,734 27,552 10,006 51,423 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial loans 18,583 100,711 70,759 61,721 61,446 43,089 327,521 20,159 703,990 Total Business Banking 93,878 476,217 440,965 480,482 326,703 1,021,194 577,624 37,683 3,454,748 Total loans $ 432,572 1,700,079 1,118,154 972,987 697,742 2,731,873 1,104,776 78,688 8,836,874 For the three months ended March 31, 2020 , $4.7 million of revolving loans were converted to term loans. The following table sets forth information about credit quality indicators as of December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Pass Special mention Substandard Doubtful Loss Total loans receivable Originated loans Personal Banking: Residential mortgage loans $ 2,776,971 — 8,218 — — 2,785,189 Home equity loans 1,093,874 — 5,640 — — 1,099,514 Consumer loans 1,084,986 — 4,161 — — 1,089,147 Total Personal Banking 4,955,831 — 18,019 — — 4,973,850 Commercial Banking: Commercial real estate loans 2,188,823 70,327 89,898 — — 2,349,048 Commercial loans 571,011 42,352 50,796 — — 664,159 Total Commercial Banking 2,759,834 112,679 140,694 — — 3,013,207 Total originated loans 7,715,665 112,679 158,713 — — 7,987,057 Acquired loans Personal Banking: Residential mortgage loans 81,611 — 1,327 — — 82,938 Home equity loans 242,237 — 1,167 — — 243,404 Consumer loans 35,746 — 239 — — 35,985 Total Personal Banking 359,594 — 2,733 — — 362,327 Commercial Banking: Commercial real estate loans 349,993 10,243 45,106 — — 405,342 Commercial loans 45,972 28 7,948 — — 53,948 Total Commercial Banking 395,965 10,271 53,054 — — 459,290 Total acquired loans 755,559 10,271 55,787 — — 821,617 Total loans $ 8,471,224 122,950 214,500 — — 8,808,674 Prior to the adoption of ASU 2016-13, acquired loans were initially measured at fair value and subsequently accounted for under either ASC Topic 310-30 or ASC Topic 310-20. The following table provides information related to the outstanding principal balance and related carrying value of acquired loans for the dates indicated (in thousands): December 31, 2019 Acquired loans evaluated individually for future credit losses: Outstanding principal balance $ 7,187 Carrying value 4,975 Acquired loans evaluated collectively for future credit losses: Outstanding principal balance 826,412 Carrying value 816,642 Total acquired loans: Outstanding principal balance 833,599 Carrying value 821,617 The following table provides information related to the changes in the accretable discount, which includes income recognized from contractual cash flows for the dates indicated prior to the adoption of ASU 2016-13 (in thousands): Total Balance at December 31, 2018 $ 755 Accretion (551 ) Net reclassification from nonaccretable yield 966 Balance at December 31, 2019 $ 1,170 The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2019 prior to the adoption of ASU 2016-13 (in thousands): Carrying Outstanding Related Average Interest Personal Banking: Residential mortgage loans $ 742 1,232 7 866 147 Home equity loans 715 1,569 25 861 114 Consumer loans 7 34 1 18 12 Total Personal Banking 1,464 2,835 33 1,745 273 Commercial Banking: Commercial real estate loans 3,433 4,268 6 3,509 273 Commercial loans 78 84 1 78 5 Total Commercial Banking 3,511 4,352 7 3,587 278 Total loans $ 4,975 7,187 40 5,332 551

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): March 31, 2020 December 31, 2019 Amortizable intangible assets: Core deposit intangibles - gross $ 71,183 71,183 Less: accumulated amortization (52,357 ) (50,934 ) Core deposit intangibles - net 18,826 20,249 Customer and Contract intangible assets - gross 12,775 12,775 Less: accumulated amortization (10,176 ) (9,948 ) Customer and Contract intangible assets - net 2,599 2,827 Total intangible assets - net $ 21,425 23,076 The following table shows the actual aggregate amortization expense for the quarters ended March 31, 2020 and 2019 , as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands): For the quarter ended March 31, 2020 $ 1,651 For the quarter ended March 31, 2019 1,447 For the year ending December 31, 2020 6,237 For the year ending December 31, 2021 5,058 For the year ending December 31, 2022 3,976 For the year ending December 31, 2023 3,016 For the year ending December 31, 2024 2,249 For the year ending December 31, 2025 1,510 The following table provides information for the changes in the carrying amount of goodwill (in thousands): Total Balance at December 31, 2018 $ 307,420 Goodwill acquired 38,683 Balance at December 31, 2019 346,103 Goodwill acquired — Balance at March 31, 2020 $ 346,103 We performed our annual goodwill impairment test as of June 30, 2019 in accordance with ASC 350, as updated by ASU 2017-04, ("Step 0") and concluded that goodwill was not impaired. Quarterly, the Company evaluates whether there are any triggering events that would require an update to our previous goodwill assessment. During the current quarter, the Company determined the COVID-19 pandemic and its negative effect on the global economy to be a triggering event. As a result, the Company, with the assistance of a third-party specialist, performed a “Step 1” quantitative impairment analysis in accordance with ASU 2017-04 as of March 31, 2020. This analysis indicated the aggregate fair value of Northwest Bank, the sole reporting unit of Northwest Bancshares, Inc., exceeded the carrying value and therefore goodwill was not impaired.

Borrowed Funds

Borrowed Funds	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds (a) Borrowings March 31, 2020 Amount Average rate Term notes payable to the FHLB of Pittsburgh: Due within one year $ 100,000 0.74 % Total term notes payable to FHLB of Pittsburgh 100,000 Collateralized borrowings, due within one year 91,599 0.30 % Total borrowed funds $ 191,599 Borrowings from the Federal Home Loan Bank of Pittsburgh ("FHLB") are secured by our residential first mortgage and other qualifying loans. Certain of these borrowings are subject to restrictions or penalties in the event of prepayment. The revolving line of credit with the FHLB carries a commitment of $250.0 million . The rate is adjusted daily by the FHLB, and any borrowings on this line may be repaid at any time without penalty. The revolving line of credit has no balance as of March 31, 2020 and $153.6 million at December 31, 2019 . At March 31, 2020 and December 31, 2019 , collateralized borrowings due within one year were $91.6 million and $92.7 million , respectively. These borrowings are collateralized by cash or various securities held in safekeeping by the FHLB. Term notes payable to the FHLB of Pittsburgh at March 31, 2020 totaled $100.0 million . This total is made up of four fixed rate advances: $30.0 million at 0.91% maturing June 16, 2020; $25.0 million at 0.70% maturing June 22, 2020; $25.0 million at 0.70% maturing June 22, 2020; and $20.0 million at 0.59% maturing June 26, 2020. (b) Trust Preferred Securities The Company has five statutory business trusts: Northwest Bancorp Capital Trust III, a Delaware statutory business trust, Northwest Bancorp Statutory Trust IV, a Connecticut statutory business trust, LNB Trust II, a Delaware statutory business trust, Union National Capital Trust I ("UNCT I"), a Delaware statutory business trust, and Union National Capital Trust II ("UNCT II"); a Delaware statutory business trust (the Trusts). The Trusts exist solely to issue preferred securities to third parties for cash, issue common securities to the Company in exchange for capitalization of the Trusts, invest the proceeds from the sale of trust securities in an equivalent amount of debentures of the Company, and engage in other activities that are incidental to those previously listed. Northwest Bancorp Capital Trust III issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 5, 2005 (liquidation value of $1,000 per preferred security or $50,000,000 ) with a stated maturity of December 30, 2035 and a floating rate of interest, which is reset quarterly, equal to three-month LIBOR plus 1.38% . Northwest Bancorp Statutory Trust IV issued 50,000 cumulative trust preferred securities in a private transaction to a pooled investment vehicle on December 15, 2005 (liquidation value of $1,000 per preferred security or $50,000,000 ) with a stated maturity of December 15, 2035 and a floating rate of interest, which is reset quarterly, equal to three-month LIBOR plus 1.38% . LNB Trust II has 7,875 cumulative trust preferred securities outstanding (liquidation value of $1,000 per preferred security or $7,875,000 ) with a stated maturity of June 15, 2037 and a floating rate of interest, which resets quarterly, equal to three-month LIBOR plus 1.48% . UNCT I has 8,000 cumulative trust preferred securities outstanding (liquidation value of $1,000 per preferred security or $8,000,000 ) with a stated maturity of January 23, 2034 and a floating interest rate, which resets quarterly, equal to three-month LIBOR plus 2.85% . UNCT II has 3,000 cumulative trust preferred securities outstanding (liquidation value of $1,000 per preferred security or $3,000,000 ) with a stated maturity of November 23, 2034 and a floating interest rate, which resets quarterly, equal to three-month LIBOR plus 2.00% . As the shareholders of the trust preferred securities are the primary beneficiaries of the Trusts, the Trusts are not consolidated in our financial statements. The Trusts have invested the proceeds of the offerings in junior subordinated deferrable interest debentures issued by the Company. The structure of these debentures mirrors the structure of the trust-preferred securities. Northwest Bancorp Capital Trust III holds $51,547,000 of the Company’s junior subordinated debentures due December 30, 2035 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 1.38% . The rate in effect at March 31, 2020 was 2.75% . Northwest Bancorp Statutory Trust IV holds $51,547,000 of the Company’s junior subordinated debentures due December 15, 2035 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 1.38% . The rate in effect at March 31, 2020 was 2.12% . LNB Trust II holds $8,119,000 of the Company's junior subordinated debentures due June 15, 2037, with a floating rate of interest, reset quarterly, of three-month LIBOR plus 1.48% . The rate in effect at March 31, 2020 was 2.22% . UNCT I holds $8,248,000 of junior subordinated debentures due January 23, 2034 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 2.85% . The rate effect at March 31, 2020 was 4.62% . UNCT II holds $3,093,000 of junior subordinated debentures due November 23, 2034 with a floating rate of interest, reset quarterly, of three-month LIBOR plus 2.00% . The rate effect at March 31, 2020 was 3.68% . These subordinated debentures are the sole assets of the Trusts. Cash distributions on the trust securities are made on a quarterly basis to the extent interest on the debentures is received by the Trusts. We have the right to defer payment of interest on the subordinated debentures at any time, or from time-to-time, for periods not exceeding five years . If interest payments on the subordinated debentures are deferred, the distributions on the trust securities also are deferred. To date there have been no interest deferrals. Interest on the subordinated debentures and distributions on the trust securities is cumulative. Our obligation constitutes a full, irrevocable, and unconditional guarantee on a subordinated basis of the obligations of the trust under the preferred securities. The Trusts must redeem the preferred securities when the debentures are paid at maturity or upon an earlier redemption of the debentures to the extent the debentures are redeemed. All or part of the debentures may be redeemed at any time. Also, the debentures may be redeemed at any time if existing laws or regulations, or the interpretation or application of these laws or regulations, change causing: • the interest on the debentures to no longer be deductible by the Company for federal income tax purposes; • the trust to become subject to federal income tax or to certain other taxes or governmental charges; • the trust to register as an investment company; or • the preferred securities do not qualify as Tier I capital. We may, at any time, dissolve any of the Trusts and distribute the debentures to the trust security holders, subject to receipt of any required regulatory approval.

Guarantees

Guarantees	3 Months Ended
	Mar. 31, 2020
Guarantees [Abstract]
Guarantees	Guarantees We issue standby letters of credit in the normal course of business. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party. We are required to perform under a standby letter of credit when drawn upon by the guaranteed third party in the case of nonperformance by our customer. The credit risk associated with standby letters of credit is essentially the same as that involved in extending loans to customers and is subject to normal loan underwriting procedures. Collateral may be obtained based on management’s credit assessment of the customer. At March 31, 2020 , the maximum potential amount of future payments we could be required to make under these non-recourse standby letters of credit was $37.9 million , of which $33.7 million is fully collateralized. At March 31, 2020 , we had a liability which represents deferred income of $449,000

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per common share ("EPS") is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding for the period, without considering any dilutive items. 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 Company. During the quarter ended March 31, 2020 , 2,033,345 stock options were not included in the computation of diluted earnings per share because the stock options’ exercise price was less than the average market price of the common shares of $14.62 . All stock options outstanding during the quarter ended March 31, 2019 were included in the computation of diluted earnings per share because the stock options’ exercise price was less than the average market price of the common shares of $ 17.74 . The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): Quarter ended March 31, 2020 2019 Net income available to common shareholders $ 7,939 25,044 Weighted average common shares outstanding 105,882,553 103,101,789 Dilutive potential shares due to effect of stock options 265,694 1,394,803 Total weighted average common shares and dilutive potential shares $ 106,148,247 104,496,592 Basic earnings per share $ 0.08 0.24 Diluted earnings per share $ 0.07 0.24

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
Pension and Other Post-Retirement Benefits	Pension and Other Post-Retirement Benefits The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands): Quarter ended March 31, Pension benefits Other post-retirement benefits 2020 2019 2020 2019 Service cost $ 2,098 1,274 — — Interest cost 1,714 1,827 7 11 Expected return on plan assets (3,091 ) (2,759 ) — — Amortization of prior service cost (581 ) (581 ) — — Amortization of the net loss 924 855 5 17 Net periodic cost $ 1,064 616 12 28 We anticipate making a contribution to our defined benefit pension plan of $2.0 million to $4.0 million during the year ending December 31, 2020 .

Disclosures About Fair Value of

Disclosures About Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Disclosures About Fair Value of Financial Instruments	Disclosures About Fair Value of Financial Instruments We are required to disclose fair value information about financial instruments whether or not recognized in the consolidated statement of financial condition. Fair value information of certain financial instruments and all nonfinancial instruments is not required to be disclosed. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company. Financial assets and liabilities recognized or disclosed at fair value on a recurring basis and certain financial assets and liabilities on a non-recurring basis are accounted for using a three-level hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. This hierarchy gives the highest priority to quoted prices with readily available independent data in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable market inputs (Level 3). When various inputs for measurement fall within different levels of the fair value hierarchy, the lowest level input that has a significant impact on fair value measurement is used. Financial assets and liabilities are categorized based upon the following characteristics or inputs to the valuation techniques: • Level 1 - Financial assets and liabilities for which inputs are observable and are obtained from reliable quoted prices for identical assets or liabilities in actively traded markets. This is the most reliable fair value measurement and includes, for example, active exchange-traded equity securities. • Level 2 - Financial assets and liabilities for which values are based on quoted prices in markets that are not active or for which values are based on similar assets or liabilities that are actively traded. Level 2 also includes pricing models in which the inputs are corroborated by market data, for example, matrix pricing. • Level 3 - Financial assets and liabilities for which values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. Level 3 inputs include the following: ◦ Quotes from brokers or other external sources that are not considered binding; ◦ Quotes from brokers or other external sources where it cannot be determined that market participants would in fact transact for the asset or liability at the quoted price; ◦ Quotes and other information from brokers or other external sources where the inputs are not deemed observable. We are responsible for the valuation process and as part of this process may use data from outside sources in establishing fair value. We perform due diligence to understand the inputs used or how the data was calculated or derived. We also corroborate the reasonableness of external inputs in the valuation process. The carrying amounts reported in the Consolidated Statement of Financial Condition approximate fair value for the following financial instruments: cash and cash equivalents, marketable securities available-for-sale, accrued interest receivable, interest rate lock commitments, forward commitments, interest rate swaps, savings and checking deposits and accrued interest payable. Marketable Securities Where available, market values are based on quoted market prices, dealer quotes, and prices obtained from independent pricing services. Debt Securities — available-for-sale - Generally, debt securities are valued using pricing for similar securities, recently executed transactions and other pricing models utilizing observable inputs. The valuation for most debt securities is classified as Level 2. Securities within Level 2 include corporate bonds, municipal bonds, mortgage-backed securities and U.S. government obligations. Certain debt securities which were AAA rated at purchase do not have an active market and as such we have used an alternative method to determine the fair value of these securities. The fair value has been determined using a discounted cash flow model using market assumptions, which generally include cash flow, collateral and other market assumptions. As such, securities which otherwise would have been classified as Level 2 securities if an active market for those assets or similar assets existed are included herein as Level 3 assets. Debt Securities — held-to-maturity - The fair value of debt securities held-to-maturity is determined in the same manner as debt securities available-for-sale. Loans Receivable Loans with comparable characteristics including collateral and re-pricing structures are segregated for valuation purposes. Each loan pool is separately valued utilizing a discounted cash flow analysis. Projected monthly cash flows are discounted to present value using a market rate for comparable loans, which is not considered an exit price. Characteristics of comparable loans include remaining term, coupon interest, and estimated prepayment speeds. Delinquent loans are separately evaluated given the impact delinquency has on the projected future cash flow of the loan including the approximate discount or market rate, which is not considered an exit price. Loans Held-for-Sale The estimated fair value of loans held-for-sale is based on market bids obtained from potential buyers. Loans Held for Investment The fair value of the loans held for investment is estimated using a discounted cash flow analysis that utilizes interest rates currently being offered for similar loans adjusted for liquidity and credit risk. FHLB Stock Due to the restrictions placed on transferability of FHLB stock, it is not practical to determine the fair value. Deposit Liabilities The estimated fair value of deposits with no stated maturity, which includes demand deposits, money market, and other savings accounts, is the amount payable on demand. Although market premiums paid for depository institutions reflect an additional value for these low-cost deposits, adjusting fair value for any value expected to be derived from retaining those deposits for a future period of time or from the benefit that results from the ability to fund interest-earning assets with these deposit liabilities is prohibited. The fair value estimates of deposit liabilities do not include the benefit that results from the low-cost funding provided by these deposits compared to the cost of borrowing funds in the market. Fair values for time deposits are estimated using a discounted cash flow calculation that applies contractual cost currently being offered in the existing portfolio to current market rates being offered locally for deposits of similar remaining maturities. The valuation adjustment for the portfolio consists of the present value of the difference of these two cash flows, discounted at the assumed market rate of the corresponding maturity. Borrowed Funds Fixed rate advances are valued by comparing their contractual cost to the prevailing market cost. The carrying amount of collateralized borrowings approximates the fair value. Junior Subordinated Debentures The fair value of junior subordinated debentures is calculated using the discounted cash flows at the prevailing rate of interest. Interest Rate Lock Commitments and Forward Commitments The fair value of interest rate lock commitments is based on the value of underlying loans held-for-sale which is based on quoted prices for similar loans in the secondary market. This value is then adjusted based on the probability of the loan closing (i.e., the “pull-through” amount, a significant unobservable input). The fair value of forward sale commitments is based on quoted prices from the secondary market based on the settlement date of the contracts. Cash Flow Hedges, Interest Rate and Foreign Exchange Swap Agreements The fair value of interest rate swaps is based upon the present value of the expected future cash flows using the LIBOR swap curve, the basis for the underlying interest rate. To price interest rate swaps, cash flows are first projected for each payment date using the fixed rate for the fixed side of the swap and the forward rates for the floating side of the swap. These swap cash flows are then discounted to time zero using LIBOR zero-coupon interest rates. The sum of the present value of both legs is the fair market value of the interest rate swap. These valuations have been derived from our third party vendor’s proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions that we believe to be reasonable. The fair value of the foreign exchange swap is derived from proprietary models rather than actual market quotations. The proprietary models are based upon financial principles and assumptions we believe to be reasonable. Off-Balance Sheet Financial Instruments These financial instruments generally are not sold or traded and estimated fair values are not readily available. However, the fair value of commitments to extend credit and standby letters of credit is estimated using the fees currently charged to enter into similar agreements. Commitments to extend credit are generally short-term in nature and, if drawn upon, are issued under current market terms. At March 31, 2020 and December 31, 2019 , there was no significant unrealized appreciation or depreciation on these financial instruments. The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at March 31, 2020 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 276,454 276,454 276,454 — — Securities available-for-sale 765,579 765,579 — 765,579 — Securities held-to-maturity 17,208 17,968 — 17,968 — Loans receivable, net 8,737,551 8,751,479 — — 8,751,479 Residential mortgage loans held-for-sale 6,426 6,426 — — 6,426 Accrued interest receivable 25,531 25,531 25,531 — — Interest rate lock commitments 507 507 — — 507 Forward commitments 197 197 — 197 — Interest rate swaps 54,656 54,656 — 54,656 — FHLB stock 13,131 13,131 — — — Total financial assets $ 9,897,240 9,911,928 301,985 838,400 8,758,412 Financial liabilities: Savings and checking deposits $ 7,298,979 7,298,979 7,298,979 — — Time deposits 1,493,756 1,514,631 — — 1,514,631 Borrowed funds 191,599 194,224 194,224 — — Junior subordinated debentures 121,813 117,557 — — 117,557 Interest rate swaps 55,376 55,376 — 55,376 — Risk participation agreements 120 120 — 120 — Accrued interest payable 834 834 834 — — Total financial liabilities $ 9,162,477 9,181,721 7,494,037 55,496 1,632,188 The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2019 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 60,846 60,846 60,846 — — Securities available-for-sale 819,901 819,901 — 819,901 — Securities held-to-maturity 18,036 18,223 — 18,223 — Loans receivable, net 8,743,024 8,666,149 — — 8,666,149 Residential mortgage loans held-for-sale 7,709 7,709 — — 7,709 Accrued interest receivable 25,755 25,755 25,755 — — Interest rate lock commitments 559 559 — — 559 Forward commitments 145 145 — 145 — Interest rate swaps 20,889 20,889 — 20,889 — FHLB stock 14,740 14,740 — — — Total financial assets $ 9,711,604 9,634,916 86,601 859,158 8,674,417 Financial liabilities: Savings and checking accounts $ 7,022,597 7,022,597 7,022,597 — — Time deposits 1,569,410 1,574,063 — — 1,574,063 Borrowed funds 246,336 246,341 246,341 — — Junior subordinated debentures 121,800 115,518 — — 115,518 Interest rate swaps 20,952 20,952 — 20,952 — Risk participation agreements 39 39 — 39 — Accrued interest payable 1,142 1,142 1,142 — — Total financial liabilities $ 8,982,276 8,980,652 7,270,080 20,991 1,689,581 Fair value estimates are made at a point-in-time, based on relevant market data and information about the instrument. The methods and assumptions detailed above were used in estimating the fair value of financial instruments at both March 31, 2020 and December 31, 2019 . The following table represents assets and liabilities measured at fair value on a recurring basis at March 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Debt securities: Government sponsored enterprises $ — 80,169 — 80,169 States and political subdivisions — 44,697 — 44,697 Total debt securities — 124,866 — 124,866 Residential mortgage-backed securities: GNMA — 23,167 — 23,167 FNMA — 81,823 — 81,823 FHLMC — 48,113 — 48,113 Non-agency — 489 — 489 Collateralized mortgage obligations: GNMA — 202,997 — 202,997 FNMA — 175,080 — 175,080 FHLMC — 109,044 — 109,044 Total mortgage-backed securities — 640,713 — 640,713 Interest rate lock commitments — — 507 507 Forward commitments — 197 — 197 Interest rate swaps — 54,656 — 54,656 Total assets $ — 820,432 507 820,939 Interest rate swaps $ — 55,376 — 55,376 Risk participation agreements — 120 — 120 Total liabilities $ — 55,496 — 55,496 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2019 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Debt securities: U.S. government and agencies $ — 14,991 — 14,991 Government sponsored enterprises — 104,784 — 104,784 States and political subdivisions — 26,048 — 26,048 Corporate — 919 — 919 Total debt securities — 146,742 — 146,742 Residential mortgage-backed securities: GNMA — 23,264 — 23,264 FNMA — 89,259 — 89,259 FHLMC — 50,139 — 50,139 Non-agency — 497 — 497 Collateralized mortgage obligations: GNMA — 207,016 — 207,016 FNMA — 184,682 — 184,682 FHLMC — 118,302 — 118,302 Total mortgage-backed securities — 673,159 — 673,159 Interest rate lock commitments — — 559 559 Forward commitments — 145 — 145 Interest rate swaps — 20,889 — 20,889 Total assets $ — 840,935 559 841,494 Interest rate swaps $ — 20,952 — 20,952 Risk participation agreements — 39 — 39 Total liabilities $ — 20,991 — 20,991 The following table presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis (in thousands): For the quarter ended March 31, 2020 2019 Beginning balance January 1, $ 559 — Total gains or losses: Included in net income — — Included in other comprehensive income — — Purchases — — Sales 52 — Transfers from Level 3 — — Transfers into Level 3 — — Ending balance March 31, $ 507 — Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans individually assessed, mortgage servicing rights and real estate owned. The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of March 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans individually assessed $ — — 47,240 47,240 Real estate owned, net — — 1,075 1,075 Total assets $ — — 48,315 48,315 The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2019 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans individually assessed $ — — 46,238 46,238 Real estate owned, net — — 950 950 Total assets $ — — 47,188 47,188 Individually Assessed Loans - A loan is considered to be individually assessed as described in Note 1 as part of the adoption of ASU 2016-13 . We classify loans individually assessed as nonrecurring Level 3. Real Estate Owned - Real estate owned is comprised of property acquired through foreclosure or voluntarily conveyed by borrowers. These assets are recorded on the date acquired at the lower of the related loan balance or fair value, less estimated disposition costs, with the fair value being determined by appraisal. Subsequently, foreclosed assets are valued at the lower of the amount recorded at acquisition date or fair value, less estimated disposition costs. We classify real estate owned as nonrecurring Level 3. The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at March 31, 2020 (in thousands): Fair value Valuation techniques Significant unobservable inputs Range (weighted average) Loans individually assessed $ 47,240 Appraisal value (1) Estimated cost to sell 10.0% Discounted cash flow Discount rate 4.25% to 11.0% (7.50%) Real estate owned, net $ 1,075 Appraisal value (1) Estimated cost to sell 10.0% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We are a party to derivative financial instruments in the normal course of business to manage our own exposure to fluctuations in interest rates and to meet the needs of our customers. The primary derivatives that we use are interest rate swaps and caps and foreign exchange contracts, which are entered into with counterparties that meet established credit standards. We believe that the credit risk inherent in all of our derivative contracts is minimal based on our credit standards and the netting and collateral provisions of the interest rate swap agreements. Derivatives Designated as Hedging Instruments During March 2020, the Company entered into four separate pay-fixed interest rate swaps in order to synthetically convert short-term three month FHLB advances to fixed-rate term funding with an aggregate value of $100 million with maturities ranging from three to five years. Our risk management objective and strategy for these interest rate swaps is to reduce our exposure to variability in interest-related cash outflows attributable to changes in the USD-LIBOR swap rate, or its commercially accepted replacement, the designated benchmark interest rate being hedged. Based upon our contemporaneous quantitative analysis at the inception of each interest rate swap, we have determined these interest rate swaps qualify for hedge accounting in accordance with ASC 815, Derivatives and Hedging . The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. Derivatives Not Designated as Hedging Instruments We act as an interest rate or foreign exchange swap counterparty for certain commercial borrowers in the normal course of servicing our customers, which are accounted for at fair value. We manage our exposure to such interest rate or foreign exchange swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the swaps we have with the commercial borrowers. These positions (referred to as “customer swaps”) directly offset each other and our exposure is the fair value of the derivatives due to changes in credit risk of our commercial borrowers and third parties. Customer swaps are recorded within other assets or other liabilities on the consolidated statement of financial condition 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. We enter into interest rate lock commitments for residential mortgage loans which commit us to lend funds to a potential borrower at a specific interest rate within a specified period of time. Interest rate lock commitments that relate to the origination of mortgage loans that will be held-for-sale are considered derivative financial instruments under applicable accounting guidance. Interest rate lock commitments on loans held-for-sale are carried at fair value in other assets on the consolidated statement of financial condition. Northwest sells loans to the secondary market on a mandatory or best efforts basis. The loans sold on a mandatory basis commit us to deliver a specific principal amount of mortgage loans to an investor at a specified price, by a specified date, or the commitment must be paired off. These forward commitments entered into on a mandatory delivery basis meet the definition of a derivative financial instrument. All closed loans to be sold on a mandatory delivery basis are classified as held-for-sale on the consolidated statement of financial condition. Changes to the fair value of the interest rate lock commitments and the forward commitments are recorded in mortgage banking income in the consolidated statements of income. We enter into risk participation agreements with financial institution counterparties for interest rate swaps related to loans in which we are a participant. The risk participation agreements provide credit protection to the financial institution should the borrower fail to perform on its interest rate derivative contract with the financial institution. The following table presents information regarding our derivative financial instruments for the periods indicated (in thousands): Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At March 31, 2020 Derivatives designated as hedging instruments: Interest rate swap agreements $ — — 100,000 558 Derivatives not designated as hedging instruments: Interest rate swap agreements 446,598 54,656 446,598 54,818 Interest rate lock commitments 80,158 507 — — Forward commitments 5,465 197 — — Risk participation agreements — — 41,123 120 Total Derivatives $ 532,221 55,360 587,721 55,496 At December 31, 2019 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 391,502 20,889 391,502 20,952 Interest rate lock commitments 24,373 559 — — Forward commitments 5,151 145 — — Risk participation agreements — — 41,164 39 Total derivatives $ 421,026 21,593 432,666 20,991 The following table presents income or expense recognized on derivatives for the periods indicated (in thousands): For the quarter ended March 31, 2020 2019 Hedging derivatives: Decrease in interest expense $ (12 ) — Non-hedging swap derivatives: Decrease in other income (177 ) — Increase in mortgage banking income 1 — The following table presents the key characteristics of the Company's interest rate derivative transactions designated as cash flow hedges of interest rate risk as of March 31, 2020 (in thousands): Notional amount Effective rate Estimated increase/(decrease) to interest expense in the next twelve months Maturity Date Remaining term (in months) Interest rate products: Issued March 16, 2020 $ 30,000 0.81 % 200 3/17/2025 60 Issued March 20, 2020 25,000 0.15 % 205 3/20/2023 36 Issued March 20, 2020 25,000 0.18 % 197 3/20/2024 48 Issued March 26, 2020 20,000 (0.07 )% 166 9/26/2024 54 Total $ 100,000 768

Legal Proceedings

Legal Proceedings	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	Legal Proceedings We establish accruals for legal proceedings when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. As of March 31, 2020 , we do not anticipate that the aggregate ultimate liability arising out of any pending or threatened legal proceedings will be material to our Consolidated Financial Statements. Any such accruals are adjusted thereafter as appropriate to reflect changes in circumstances. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, any amounts accrued may not represent the ultimate loss to us from legal proceedings. During the year-ended December 31, 2018, Northwest and our subsidiary, Northwest Insurance Services (“NWIS”), were involved in a lawsuit against, among others, First National Bank of Pennsylvania (“FNB”) and their insurance subsidiary, First National Insurance Agency, LLC (“FNIA”). All counterclaims against Northwest were discontinued and, in December 2018, a verdict was rendered in favor of NWIS on several of its claims. Post-trial proceedings have continued throughout the current year and, due to the inherent uncertainties with respect to these proceedings, we have not accrued any awards associated with this verdict within our Consolidated Financial Statements as of March 31, 2020 .

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income	Changes in Accumulated Other Comprehensive Income The following tables show the changes in accumulated other comprehensive income/(loss) by component for the periods indicated (in thousands): For the quarter ended March 31, 2020 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2019 $ 3,147 — (40,088 ) (36,941 ) Other comprehensive income/(loss) before reclassification adjustments (1) (2) 8,157 (409 ) — 7,748 Amounts reclassified from accumulated other comprehensive income (3), (4) 37 — 249 286 Net other comprehensive income/(loss) 8,194 (409 ) 249 8,034 Balance as of March 31, 2020 $ 11,341 (409 ) (39,839 ) (28,907 ) For the quarter ended March 31, 2019 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2018 $ (6,832 ) — (32,864 ) (39,696 ) Other comprehensive income before reclassification adjustments (5) 4,452 — — 4,452 Amounts reclassified from accumulated other comprehensive income (6), (7) — — 209 209 Net other comprehensive income 4,452 — 209 4,661 Balance as of March 31, 2019 $ (2,380 ) — (32,655 ) (35,035 ) (1) Consists of unrealized holding loss, net of tax of $3,277 . (2) Change in fair value of interest rate swaps, net of tax $(162) . (3) Consists of realized gain on securities (gain on sales of investments, net) of $ (51) , net of tax (income tax expense) of $ 14 . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net actuarial loss (compensation and employee benefits) of $(929) , net of tax (income tax expense) of $99 . (5) Consists of unrealized holding loss, net of tax $1,781 . (6) There were no realized gains on securities reclassified from accumulated other comprehensive income. (7) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net actuarial loss (compensation and employee benefits) of $(872) , net of tax (income tax expense) of $82

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 24, 2020, the Company completed the merger with MutualFirst Financial, Inc. (“MutualFirst Financial”), the holding company for MutualBank for total consideration of $213.4 million . The Company is currently in the process of finalizing the purchase accounting of this transaction. Under the terms of the Merger Agreement, each share of common stock of MutualFirst Financial converted into the right to receive 2.4 shares of the Company’s common stock or a total of 20,659,087 shares of common stock of the Company valued at $213.4 million , based on the $10.33 per share closing price of the Company's stock on April 24, 2020. Cash was paid in lieu of fractional shares at a rate of $10.71 per whole share of the Company's common stock. The transaction has resulted in a bank with approximately $12.8 billion in total assets, providing banking services through 214 branch locations and 273 ATMs in four states. The transaction expanded the Company's franchise by 36 full-service offices located in Indiana.

Basis of Presentation and Inf_2

Basis of Presentation and Informational Disclosures (Policies)	3 Months Ended
	Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Northwest Bancshares, Inc. (the “Company” or “NWBI”), a Maryland corporation headquartered in Warren, Pennsylvania, is a savings and loan holding company regulated by the Board of Governors of the Federal Reserve System. The primary activity of the Company is the ownership of all of the issued and outstanding common stock of Northwest Bank, a Pennsylvania-chartered savings bank (“Northwest”). Northwest is regulated by the Federal Deposit Insurance Corporation ("FDIC") and the Pennsylvania Department of Banking. Northwest operates 178 community-banking offices throughout Pennsylvania, Western New York, and eastern Ohio. The accompanying unaudited Consolidated Financial Statements include the accounts of the Company and its subsidiary, Northwest, and Northwest’s subsidiaries Northwest Capital Group, Inc., Allegheny Services, Inc., Great Northwest Corporation, and The Bert Company (doing business as Northwest Insurance Services). The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information or footnotes required for complete annual financial statements. In the opinion of management, all adjustments necessary for the fair presentation of the Company’s financial position and results of operations have been included. The consolidated financial statements have been prepared using the accounting policies described in the financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 updated, as required, for any new pronouncements or changes. Certain items previously reported have been reclassified to conform to the current year's reporting format.
Income Taxes - Uncertain Tax Positions	Income Taxes-Uncertain Tax Positions Accounting standards prescribe a comprehensive model for how a company should recognize, measure, present and disclose in its financial statements uncertain tax positions that the company has taken or expects to take on a tax return. A tax benefit from an uncertain position may be recognized only if it is “more likely than not” that the position is sustainable, based on its technical merits. The tax benefit of a qualifying position is the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with a taxing authority having full knowledge of all relevant information. At March 31, 2020 , we had no liability for unrecognized tax benefits. We recognize interest accrued related to: (1) unrecognized tax benefits in other expenses and (2) refund claims in other operating income. We recognize penalties (if any) in other expenses. We are subject to audit by the Internal Revenue Service and any state in which we conduct business for the tax periods ended December 31, 2019 , 2018 , 2017 and 2016.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards On January 1, 2020, the Company adopted Accounting Standards Update ("ASU") 2016-13, " Financial Instruments - Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments , which eliminated the probable initial recognition threshold for credit losses and instead requires that all financial assets (or group of financial assets) measured at amortized cost be presented at the net amount expected to be collected inclusive of the entity’s current estimate of all lifetime expected credit losses. This guidance also applies to certain off-balance sheet credit exposures such as unfunded commitments and non-derivative financial guarantees. In addition, ASC 326 made changes to the accounting for available-for-sale debt securities. ASC 326 requires credit losses to be presented as an allowance, rather than a write-down, on available-for-sale debt securities management does not intend to sell or believes that it is more likely than not they will be required to sell. We adopted ASC 326 using the modified retrospective transition approach for all financial assets measured at amortized cost and off-balance sheet credit exposures. As a result, the Company was not required to adjust its comparative period financial information for effects of the standard or make the new required ASC 326 disclosures for periods before the date of adoption (i.e., January 1, 2020). As a result of the adoption of ASU 2016-13, we recognized an increase to the allowance for credit losses of $10.8 million , an increase to our reserve for off-balance sheet exposures of $2.3 million , an increase in deferred tax assets of $2.9 million and a cumulative-effect adjustment to retained earnings of $9.6 million , net of taxes, on the Consolidated Statements of Financial Condition as of January 1, 2020, with no impact on our Consolidated Statement of Income or Consolidated Statement of Cash Flows. Additionally, the adoption of CECL did not impact our held-to-maturity or our available-for-sale securities portfolio, which are primarily comprised of agency-backed mortgage securities. We also adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (PCD) that were previously classified as purchased credit impaired (PCI) and accounted for under ASC 310-30. In accordance with ASC 326, we did not reassess whether PCI assets met the criteria for PCD assets as of the date of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $517,000 of allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, 2020. We have elected to phase the estimated impact of CECL into regulatory capital in accordance with the interim final rule of the FRB and other U.S. banking agencies that became effective on March 31, 2020. As a result, we will delay recognizing the estimated impact of CECL on regulatory capital until after a two-year deferral period, which for us extends through December 31, 2021. Beginning on January 1, 2022, we will be required to phase in 25% of the previously deferred estimated capital impact of CECL, with an additional 25% to be phased in at the beginning of each subsequent year until fully phased in by the first quarter of 2025. Under the interim final rule, the estimated impact of CECL on regulatory capital that we will defer and later phase in is calculated as the entire day-one impact at adoption plus 25% of the subsequent change in allowance during the two-year deferral period. Adoption of this standard resulted to changes in our Investment Securities, Loans Receivable and Allowance for Credit Loss and Provision for Credit Losses accounting policies as presented below. Refer to Note 1 to the Consolidated Financial Statements in our 2019 Annual Report on Form 10-K regarding additional significant accounting policies, including policies in effect prior to the adoption of the CECL standard. Investment Securities We classify marketable securities at the time of purchase as held-to-maturity, available-for-sale, or trading. Securities for which management has the intent and ability to hold until maturity are classified as held-to-maturity and are carried at cost, adjusted for amortization of premiums and accretion of discounts on a level yield basis (amortized cost). If it is management’s intent at the time of purchase to hold securities for an indefinite period of time and/or to use such securities as part of its asset/ liability management strategy, the securities are classified as available-for-sale and are carried at fair value, with unrealized gains and losses reported as accumulated other comprehensive income/(loss), a separate component of shareholders’ equity, net of tax. Securities classified as available-for-sale include securities that may be sold in response to changes in interest rates, resultant prepayment risk, or other market factors. Securities that are bought and held principally for the purpose of selling them in the near term are classified as trading and are reported at fair value, with changes in fair value included in earnings. The cost of securities sold is determined on a specific identification basis. We held no securities classified as trading at or during the quarter ended March 31, 2020 . On a quarterly basis, we measure expected credit losses on held-to-maturity debt securities on a collective basis by major security type and all of our held-to-maturity debt securities are residential mortgage-backed securities. Accrued interest receivable on held-to-maturity debt securities totaled $1.3 million and $1.5 million at March 31, 2020 and December 31, 2019 , respectively, and is excluded from estimated credit losses. All of our residential mortgage-backed securities are issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. For available-for-sale debt securities in an unrealized loss position, on at least a quarterly basis, we review our investments for impairment. An investment security is deemed impaired if the fair value of the investment is less than its amortized cost. We consider both our intent to sell and the likelihood that we will not have to sell the investment securities before recovery of their amortized cost basis during our evaluation. If we intend to sell the investment security or if it is more likely than not that we will be required to sell the investment security, the entire impairment is recorded in earnings. For available-for-sale debt securities that do not meet this criteria, we evaluate whether the decline in fair value has resulted from credit losses or other factors. In making this assessment we consider the issuer of the securities and their creditworthiness, any changes to the rating of the security and any adverse conditions specifically related to the security, among other factors. Also, we may evaluate the business and financial outlook of the issuer, as well as broader economic performance indicators. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance when we believe the uncollectibility of an available-for-sale security is confirmed or when there is an intent or requirement to sell the security. Accrued interest receivable on available-for-sale debt securities totaled $1.0 million and $900,000 at March 31, 2020 and December 31, 2019 , respectively, and is excluded from the estimate of credit losses. A debt security is placed on nonaccrual status at the time any principal or interest payments become 90 days past due. The receivable for interest income that is accrued but not collected is reversed against interest income when the debt security is placed on nonaccrual status. Loans Receivable Our portfolio segments are based on the class of financing receivable. Additionally, the class of financing receivables are based on several factors including the method for monitoring and assessing credit risk and the risk characteristics of the financing receivables. Based on evaluation of the nature of our financing receivables, along with the nature and extent of exposure to credit risk arising from these receivables, our portfolio segments were determined to be Personal Banking and Business Banking loans. • Personal Banking loans consist of the following classes of financing receivables: ◦ Residential mortgage loans - fixed and adjustable rate mortgage loans ◦ Home equity loans - first and second mortgage loans and home equity lines of credit ◦ Vehicle loans - direct and indirect automobile and motorcycle loans ◦ Consumer loans - unsecured lines of credit, credit card loans, and other consumer loans • Business Banking loans consist of the following classes of financing receivables: ◦ Commercial real estate - multi-family commercial real estate loans are secured by multi-family residences, such as rental properties and loans secured by nonresidential properties such as hotels, commercial offices, medical buildings, manufacturing facilities and retail establishments, excluding owner-occupied loans, and including small business commercial real estate loans. ◦ Commercial real estate - owner-occupied loans - commercial real estate loans secured by residential or nonresidential properties ◦ Commercial loans - other commercial loans, including small business commercial loans. Loans are reported at amortized cost. Amortized cost is the principal balance outstanding, net of any deferred purchased premiums and discounts, deferred origination fees or costs and the allowance for credit losses. Accrued interest receivable totaled $23.2 million and $23.3 million at March 31, 2020 and December 31, 2019 , respectively, and was reported in accrued interest receivable on the Consolidated Statements of Financial Position. Accrued interest receivable is excluded from the amortized cost basis of loans and from the estimate of allowance for credit losses. Interest income on loans is credited to income as earned. Interest earned on loans for which no payments were received during the month is accrued at month end. Accrued interest on loans more than 90 days delinquent is reversed and such loans are placed on nonaccrual status. All loans are placed on nonaccrual status when principal or interest is 90 days or more delinquent or when there is reasonable doubt that interest or principal will not be collected in accordance with the contractual terms. Interest receipts on all nonaccrual loans are recognized as interest income when it has been determined that all principal and interest will be collected or are applied to principal when collectability of contractual principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and a period of performance has been established in accordance with the contractual terms, typically six months. A loan is considered to be a troubled debt restructuring loan ("TDR") when the borrower is experiencing financial difficulties and the restructuring constitutes a concession. TDRs may include modifications of terms of loans, receipts of assets from borrowers in partial or full satisfaction of loans, or a combination thereof. A modified loan is determined to be a TDR based on the contractual terms as specified by the original loan agreement or the most recent modification. Once classified as a TDR, a loan is removed from such classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off, or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk. Loan delinquency is measured based on the number of days since the payment due date. Past due status is measured using the loan’s contractual maturity date. Personal Banking loans are charged-off or charged down when they become 180 days delinquent, unless the borrower has filed for bankruptcy. Business Banking loans are charged-off or charged down when, in our opinion, they are no longer collectible or when it has been determined that the collateral value no longer supports the carrying value of the loan for loans that are collateral dependent. Loan fees and certain direct loan origination costs are deferred and the net deferred fee or cost is then recognized using the level-yield method over the contractual life of the loan as an adjustment to interest income. We identify certain residential mortgage loans which will be sold prior to maturity as loans held-for-sale. These loans are recorded at the lower of amortized cost or fair value less estimated cost to sell. At March 31, 2020 and 2019, there were $6.4 million and no residential mortgage loans classified as held-for-sale, respectively. Acquired loans that are not considered PCD are initially measured at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. Acquired loans may be classified as PCD loans upon acquisition if they have experienced more than insignificant credit deterioration since origination. Loans are considered to have experienced more than insignificant credit deterioration if they are greater than 30 days past due, classified special mention or worse or on non-accrual status. PCD loans are recorded at the amount paid. An allowance for credit losses is determined using the same methodology as other loans held for investment. The initial allowance for credit losses determined on a collective basis is allocated to individual loans. The sum of the loans, purchase price and allowance for credit losses becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses are recorded through provision expense. Upon adoption of ASC 326, we assessed our legacy loans that were previously accounted for under ASC 310-30 to determine whether they share similar risk characteristics and whether some or all of the assets should be assessed collectively with other loans that share similar risk characteristics. Upon adoption, an allowance for credit losses was determined for each loan and added to the loan's carrying amount to establish a new amortized cost basis. The difference between the unpaid principal balance of the loan and the new amortized cost is the noncredit premium or discount which will be amortized into interest income over the remaining life of the loan. Changes to the allowance for credit losses after adoption are recorded through provision expense. Allowance for Credit Losses and Provision for Credit Losses The allowance for credit losses is deducted from, or added to, the loan’s amortized cost basis to present the net amount expected to be collected on our lending portfolios. We estimate the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Loans are charged off against the allowance when we believe the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Expected credit losses are estimated over the contractual term of the loans, adjusted for prepayments. The contractual term excludes expected extensions, renewals and modifications unless we had a reasonable expectation at the reporting date that a TDR will be executed for an individual borrower or the extension or renewal option is included in the contract and is not unconditionally cancellable by the Company. Credit card receivables do not have stated maturities. In determining the estimated life of a credit card receivable, we first estimate the future cash flows expected to be received and then apply those expected future cash flows to the credit card balance. Expected credit losses for credit cards are determined by estimating the amount and timing of principal payments expected to be received as payment for the balance outstanding as of the reporting date and applying those principal payments against the balance outstanding as of the reporting period until the expected payments have been fully allocated. The allowance for credit losses is recorded for the excess of the balance outstanding as of the reporting period over the expected principal payments. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. For the purpose of calculating portfolio-level reserves, we have grouped our loans into seven segments: residential mortgage loans, home equity loans, vehicle loans, consumer loans, commercial real estate loans, commercial real estate owner-occupied and commercial loans. The allowance for credit losses is measured at the loan-level wherever possible, but it is sometimes measured at the portfolio level when there is no added benefit to being measured at the loan-level. We use a twenty four month forecasting period and revert to historical average loss rates thereafter. Reversion to the mean takes place over a twelve month period. Historical average loss rates are calculated using historical data beginning in October 2009 through the current period. Mortgage and Home Equity Loans The allowance for credit losses within the mortgage and home equity loan classes is calculated at the loan-level using a proprietary statistical model developed by an external third-party. These classes are further divided into smaller pools of loans with similar risk characteristics such as: lines versus loans, fixed versus variable, senior lien position versus junior lien position, among other things. For each pool, the models project default rates, prepayment rates, and severity rates. The models accept as inputs key risk drivers such as: current balance, original credit bureau score, original loan-to-value ratio, type of collateral, location of collateral, delinquency status, loan age, among other characteristics. They also utilize macroeconomic forecasts of home price indices, unemployment rates, gross domestic product, and others. Vehicle Loans The allowance for credit losses within the vehicle loan portfolio is calculated at the portfolio-level using a proprietary statistical model developed internally with the assistance of an external third-party. The allowance for vehicle loans utilizes a vintage analysis to project portfolio-level net charge-off rates. The class is further divided into short term versus long term loans, prime versus subprime borrowers, and origination vintage. This model uses current balance, original credit bureau score, original debt-to-income ratio, loan term, loan age, and other product characteristics as key risk drivers. The model used for vehicle loans is not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. Consumer Loans The allowance for losses within the consumer loan portfolio is calculated at the portfolio-level using a suite of proprietary statistical models developed internally with the assistance of an external third-party. This class of financing receivables is further divided into credit cards, unsecured lines of credit and other consumer loans. The allowance for credit cards and unsecured lines of credit is calculated using two transition matrix models to project portfolio-level net charge-off rates. Both models use current balance and delinquency status as key risk drivers. These models are not natively sensitive to macroeconomic conditions. The necessary adjustments to account for current and expected macroeconomic conditions is captured via our qualitative adjustment framework. For other consumer loans, a regression model is used to project portfolio-level net charge-off rates. This model uses borrower information and macroeconomic forecasts as key inputs. Commercial Real Estate Loans The commercial real estate loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial real estate loans and small business commercial real estate loans. The allowance for credit losses for the commercial real estate loan portfolio is calculated at loan-level using a proprietary statistical model developed by an external third-party. This model projects default and severity rates. The model accepts as inputs key risk drivers such as: current balance, original loan-to-value-ratio, type of collateral, location of collateral, delinquency status, loan age, obligor financial statement information, and expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of commercial real estate price indices, unemployment rates, gross domestic product and others. The allowance for credit losses is calculated for commercial real estate small business loans at the portfolio-level using a proprietary statistical model. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Commercial Loans and Commercial Real Estate - Owner Occupied Loans The allowance for credit losses for the commercial loan portfolio and the commercial real estate - owner occupied loan portfolio is calculated at loan-level using a proprietary statistical model developed by an external third-party. The commercial loan class is further segmented into smaller pools of loans with similar risk characteristics, commercial loans and commercial small business loans. The commercial loan portfolio and the commercial real estate owner occupied loan portfolio the models project default and severity rates. The model accepts as inputs key risk drivers such as the obligor financial statement information, collateral type, the obligor’s primary industry, expected prepayment rates, among other characteristics. It also utilizes macroeconomic forecasts of unemployment rates, gross domestic product, corporate bond spreads, and others. The allowance for credit losses for commercial small business loans is calculated at the portfolio-level using a proprietary statistical model. A regression model is used to project portfolio-level net charge-off rates. This model uses loan characteristics and macroeconomic forecasts as key inputs. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When we determine that foreclosure is probable or when the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs. If this criteria is not met, a discounted cash flow method is used to determine the allowance for credit losses. All changes in the discounted cash flow method over time are reported in the allowance for credit losses. The allowance calculation is also supplemented with qualitative reserves that takes into consideration current portfolio and specific risk characteristics, such as changes in underwriting standards, portfolio mix, delinquency level, or term, as well as changes in environmental conditions, among other factors, that have occurred but are not yet reflected in the quantitative model component. The allowance for credit losses on a TDR is measured using the same method as all other loans held for investment, except when the value of the concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit losses is determined by discounting the expected future cash flows at the original interest rate of the loan. For off-balance sheet credit exposures, we estimate expected credit losses over the contractual period in which we are exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable. The liability for credit losses on off-balance sheet credit exposures is adjusted through a provision for credit loss expense and is included within "other expenses". We estimate the liability balance using relevant available information, from internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. The estimate includes a consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life. Off-balance-sheet exposures that are not unconditionally cancellable have been identified for the home equity, commercial real estate, and commercial loan portfolios. 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.” This guidance removes, modifies and adds disclosure requirements for fair value measurements. On January 1, 2020, the Company adopted ASU 2018-13 on a prospective basis for the new and modified disclosures, and on a retrospective basis for disclosures that have been eliminated. The adoption of this standard did not have any effect on our results of operations or financial position. Refer to Note 9, "Disclosures About Fair Value of Financial Instruments". 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.” This guidance aligns the requirements for capitalization of implementation costs incurred in a hosting arrangement that is a service contract with the existing guidance for internal-use software. On January 1, 2020, the Company adopted ASU 2018-15 on a prospective basis which will be applied to relevant implementation costs incurred after the date of adoption. The adoption of this standard is not expected to have a material prospective impact on our financial statements.

Marketable Securities (Tables)

Marketable Securities (Tables)	3 Months Ended
	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Schedule of the portfolio of investment securities available-for-sale	The following table shows the portfolio of marketable securities available-for-sale at March 31, 2020 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by government sponsored enterprises: Due in less than one year $ 50,761 475 — 51,236 Due in one year through five years 25,227 284 — 25,511 Due in five years through ten years 3,411 114 (103 ) 3,422 Municipal securities: Due in less than one year 812 3 — 815 Due in one year through five years 2,897 68 — 2,965 Due in five years through ten years 8,903 178 — 9,081 Due after ten years 31,400 436 — 31,836 Residential mortgage-backed securities: Fixed rate pass-through 130,729 4,453 (10 ) 135,172 Variable rate pass-through 18,025 403 (8 ) 18,420 Fixed rate agency CMOs 423,625 10,447 (60 ) 434,012 Variable rate agency CMOs 53,913 62 (866 ) 53,109 Total residential mortgage-backed securities 626,292 15,365 (944 ) 640,713 Total marketable securities available-for-sale $ 749,703 16,923 (1,047 ) 765,579 The following table shows the portfolio of marketable securities available-for-sale at December 31, 2019 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Debt issued by the U.S. government and agencies: Due in less than one year $ 14,951 40 — 14,991 Debt issued by government sponsored enterprises: Due in less than one year 50,777 345 — 51,122 Due in one year through five years 50,229 — (227 ) 50,002 Due after ten years 3,716 53 (109 ) 3,660 Municipal securities: Due in less than one year 809 4 — 813 Due in one year through five years 2,891 79 — 2,970 Due in five years through ten years 10,155 148 — 10,303 Due after ten years 11,695 267 — 11,962 Corporate debt issues: Due in five years through ten years 919 — — 919 Residential mortgage-backed securities: Fixed rate pass-through 142,421 1,941 (881 ) 143,481 Variable rate pass-through 18,933 749 (4 ) 19,678 Fixed rate agency CMOs 452,256 3,518 (1,606 ) 454,168 Variable rate agency CMOs 55,743 207 (118 ) 55,832 Total residential mortgage-backed securities 669,353 6,415 (2,609 ) 673,159 Total marketable securities available-for-sale $ 815,495 7,351 (2,945 ) 819,901
Schedule of the portfolio of investment securities held-to-maturity	The following table shows the portfolio of marketable securities held-to-maturity at March 31, 2020 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Residential mortgage-backed securities: Fixed rate pass-through $ 2,096 113 — 2,209 Variable rate pass-through 1,119 15 — 1,134 Fixed rate agency CMOs 13,389 639 — 14,028 Variable rate agency CMOs 604 1 (8 ) 597 Total residential mortgage-backed securities 17,208 768 (8 ) 17,968 Total marketable securities held-to-maturity $ 17,208 768 (8 ) 17,968 The following table shows the portfolio of marketable securities held-to-maturity at December 31, 2019 (in thousands): Amortized cost Gross unrealized holding gains Gross unrealized holding losses Fair value Residential mortgage-backed securities: Fixed rate pass-through $ 2,197 83 — 2,280 Variable rate pass-through 1,210 28 — 1,238 Fixed rate agency CMOs 14,016 68 — 14,084 Variable rate agency CMOs 613 8 — 621 Total residential mortgage-backed securities 18,036 187 — 18,223 Total marketable securities held-to-maturity $ 18,036 187 — 18,223 The following table shows the contractual maturity of our marketable securities held-to-maturity at March 31, 2020 (in thousands): Amortized cost Fair value Residential mortgage-backed securities: Due in less than one year $ 1 1 Due in one year through five years 599 626 Due after five years through ten years 929 981 Due after ten years 15,679 16,360 Total residential mortgage-backed securities 17,208 17,968 Total marketable securities held-to-maturity $ 17,208 17,968
Schedule of the fair value and gross unrealized losses on investment securities, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position	The following table shows the fair value of and gross unrealized losses on available-for-sale marketable securities, for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at March 31, 2020 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ — — 2,320 (103 ) 2,320 (103 ) Residential mortgage-backed securities - agency 46,190 (847 ) 9,167 (97 ) 55,357 (944 ) Total temporarily impaired securities $ 46,190 (847 ) 11,487 (200 ) 57,677 (1,047 ) The following table shows the fair value of and gross unrealized losses on marketable securities, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2019 (in thousands): Less than 12 months 12 months or more Total Fair value Unrealized loss Fair value Unrealized loss Fair value Unrealized loss U.S. government sponsored enterprises $ — — 52,620 (336 ) 52,620 (336 ) Residential mortgage-backed securities - agency 173,112 (858 ) 109,324 (1,751 ) 282,436 (2,609 ) Total temporarily impaired securities $ 173,112 (858 ) 161,944 (2,087 ) 335,056 (2,945 )
Schedule of credit quality of held-to-maturity securities	The following table presents the credit quality of our held-to-maturity securities, based on latest information available as of March 31, 2020 . The credit ratings are sourced from nationally recognized rating agencies, which include Moody's and S&P, or when credit ratings cannot be sourced from the agencies, they are presented based on asset type. All of our held-to-maturity securities were current in their payment of principal and interest as of March 31, 2020 . AA+ Total Held-to-maturity securities: Residential mortgage-backed securities $ 17,208 17,208 Total marketable securities held-to-maturity $ 17,208 17,208

Loans Receivable (Tables)

Loans Receivable (Tables)	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Summary of loans receivable	The following table shows a summary of our loans receivable at amortized cost basis at March 31, 2020 and December 31, 2019 (in thousands): March 31, 2020 December 31, 2019 Originated Acquired Total Originated Acquired Total Personal Banking: Residential mortgage loans (1) $ 2,758,695 76,038 2,834,733 2,785,189 82,938 2,868,127 Home equity loans 1,129,370 231,284 1,360,654 1,100,023 243,404 1,343,427 Vehicle loans 929,204 7,623 936,827 850,804 10,388 861,192 Consumer loans 243,169 6,743 249,912 237,834 25,597 263,431 Total Personal Banking 5,060,438 321,688 5,382,126 4,973,850 362,327 5,336,177 Commercial Banking: Commercial real estate loans 1,953,458 309,540 2,262,998 1,915,949 312,160 2,228,109 Commercial real estate loans - owner occupied 416,283 71,477 487,760 433,099 93,182 526,281 Commercial loans 650,349 53,641 703,990 664,159 53,948 718,107 Total Commercial Banking 3,020,090 434,658 3,454,748 3,013,207 459,290 3,472,497 Total loans receivable, gross 8,080,528 756,346 8,836,874 7,987,057 821,617 8,808,674 Allowance for credit losses (82,431 ) (10,466 ) (92,897 ) (51,439 ) (6,502 ) (57,941 ) Total loans receivable, net (2) $ 7,998,097 745,880 8,743,977 7,935,618 815,115 8,750,733 (1) Includes $6.4 million and $7.7 million of loans held-for-sale at March 31, 2020 and December 31, 2019 , respectively. (2) Includes $ 44.7 million and $ 40.2 million of net unearned income, unamortized premiums and discounts and deferred fees and costs at March 31, 2020 and December 31, 2019 , respectively.
Schedule of the composition of impaired loans by portfolio segment and by class of financing receivable	The following table presents the amortized cost of our loans on nonaccrual status as of the beginning and end of the quarter ended March 31, 2020 (in thousands): Nonaccrual loans at January 1, 2020 Nonaccrual loans at March 31, 2020 with an allowance Nonaccrual loans with no allowance Loans 90 days past due and accruing Personal Banking: Residential mortgage loans $ 14,476 11,651 — — Home equity loans 6,745 7,106 — 31 Vehicle loans 3,147 3,231 — — Consumer loans 1,079 936 — — Total Personal Banking 25,447 22,924 — 31 Commercial Banking: Commercial real estate loans 18,832 22,730 3,654 — Commercial real estate loans - owner occupied 16,032 12,136 3,751 — Commercial loans 8,559 18,838 1,398 — Total Commercial Banking 43,423 53,704 8,803 — Total $ 68,870 76,628 8,803 31 During the three months ended March 31, 2020, we recognized $ 217,000 of interest income on nonaccrual loans. The following table presents the amortized cost basis of collateral-dependent loans by class of loans as of March 31, 2020 (in thousands): Real estate Equipment Other Total Personal Banking: Residential mortgage loans $ 6,677 — — 6,677 Home equity loans 99 — — 99 Vehicle loans — — 1,569 1,569 Consumer loans — — — — Total Personal Banking 6,776 — 1,569 8,345 Commercial Banking: Commercial real estate loans 13,922 — — 13,922 Commercial real estate loans - owner occupied 5,841 — — 5,841 Commercial loans 3,927 11,717 — 15,644 Total Commercial Banking 23,690 11,717 — 35,407 Total $ 30,466 11,717 1,569 43,752 The following table provides information related to the composition of originated impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Nonaccrual loans 90 or more days delinquent Nonaccrual loans less than 90 days delinquent Loans less than 90 days delinquent reviewed for impairment TDRs less than 90 days delinquent not included elsewhere Total impaired loans Average recorded investment in impaired loans Interest income recognized on impaired loans Personal Banking: Residential mortgage loans $ 12,682 1,794 — 6,817 21,293 19,767 688 Home equity loans 5,635 1,110 — 1,654 8,399 8,571 368 Consumer loans 3,610 616 — — 4,226 3,842 179 Total Personal Banking 21,927 3,520 — 8,471 33,918 32,180 1,235 Commercial Banking: Commercial real estate loans 25,014 9,850 933 10,329 46,126 46,284 1,490 Commercial loans 4,739 3,820 15,916 1,474 25,949 10,179 345 Total Commercial Banking 29,753 13,670 16,849 11,803 72,075 56,463 1,835 Total $ 51,680 17,190 16,849 20,274 105,993 88,643 3,070 The following table provides information related to acquired impaired loans by portfolio segment and by class of financing receivable at and for the year ended December 31, 2019 prior to the adoption of ASU 2016-13 (in thousands): Carrying Outstanding Related Average Interest Personal Banking: Residential mortgage loans $ 742 1,232 7 866 147 Home equity loans 715 1,569 25 861 114 Consumer loans 7 34 1 18 12 Total Personal Banking 1,464 2,835 33 1,745 273 Commercial Banking: Commercial real estate loans 3,433 4,268 6 3,509 273 Commercial loans 78 84 1 78 5 Total Commercial Banking 3,511 4,352 7 3,587 278 Total loans $ 4,975 7,187 40 5,332 551
Schedule of the changes in the allowance for losses on loans receivable	The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended March 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Balance as of March 31, 2019 Current period provision Charge-offs Recoveries Balance as of Originated loans Personal Banking: Residential mortgage loans $ 4,005 186 (349 ) 114 4,054 Home equity loans 3,062 (35 ) (112 ) 25 3,184 Consumer loans 11,535 2,822 (2,988 ) 621 11,080 Total Personal Banking 18,602 2,973 (3,449 ) 760 18,318 Commercial Banking: Commercial real estate loans 25,470 (464 ) (569 ) 124 26,379 Commercial loans 7,639 874 (457 ) 168 7,054 Total Commercial Banking 33,109 410 (1,026 ) 292 33,433 Total originated loans 51,711 3,383 (4,475 ) 1,052 51,751 Acquired loans Personal Banking: Residential mortgage loans 92 8 (8 ) 9 83 Home equity loans 399 45 (42 ) 48 348 Consumer loans 454 34 (32 ) 33 419 Total Personal Banking 945 87 (82 ) 90 850 Commercial Banking: Commercial real estate loans 2,467 255 (35 ) 251 1,996 Commercial loans 598 2,742 (2,813 ) 52 617 Total Commercial Banking 3,065 2,997 (2,848 ) 303 2,613 Total acquired loans 4,010 3,084 (2,930 ) 393 3,463 Total $ 55,721 6,467 (7,405 ) 1,445 55,214 The following table provides information related to the allowance for credit losses by portfolio segment and by class of financing receivable for the quarter ended March 31, 2020 and includes the cumulative effect of adopting ASU 2016-13 (in thousands): Balance as of March 31, 2020 Current period provision Charge-offs Recoveries Cumulative effect of ASU 2016-13* Balance as of Allowance for Credit Losses Personal Banking: Residential mortgage loans $ 10,673 894 (343 ) 107 7,441 2,574 Home equity loans 9,786 895 (289 ) 205 5,786 3,189 Vehicle loans 11,994 5,359 (1,843 ) 344 842 7,292 Consumer loans 5,166 3,518 (1,645 ) 416 (2,424 ) 5,301 Total Personal Banking 37,619 10,666 (4,120 ) 1,072 11,645 18,356 Commercial Banking: Commercial real estate loans 29,380 11,269 (310 ) 290 2,288 15,843 Commercial real estate loans - owner occupied 8,374 1,365 (21 ) 7 1,278 5,745 Commercial loans 17,524 4,337 (815 ) 424 (4,419 ) 17,997 Total Commercial Banking 55,278 16,971 (1,146 ) 721 (853 ) 39,585 Total $ 92,897 27,637 (5,266 ) 1,793 10,792 57,941 Allowance for Credit Losses - off-balance sheet exposure Personal Banking: Home equity loans 34 4 — — (293 ) 323 Consumer loans — — — — (402 ) 402 Total Personal Banking 34 4 — — (695 ) 725 Commercial Banking: Commercial real estate loans 3,294 1,283 — — 1,934 77 Commercial real estate loans - owner occupied 95 4 — — 88 3 Commercial loans 1,281 189 — — 923 169 Total Commercial Banking 4,670 1,476 — — 2,945 249 Total off-balance sheet exposure $ 4,704 1,480 — — 2,250 974 * Includes the impact of the initial allowance on PCD loans of
Schedule of loan portfolio by portfolio segment and by class of financing receivable	The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at March 31, 2020 (in thousands): Total loans receivable Allowance for credit losses Nonaccrual loans (1) Loans 90 days past due and accruing TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,834,733 10,673 11,651 — 7,183 865 — Home equity loans 1,360,654 9,786 7,106 31 1,906 467 26 Vehicle loans 936,827 11,994 3,231 — — — — Consumer loans 249,912 5,166 936 — — — — Total Personal Banking 5,382,126 37,619 22,924 31 9,089 1,332 26 Commercial Banking: Commercial real estate loans 2,262,998 29,380 26,384 — 12,460 1,010 71 Commercial real estate loans - owner occupied 487,760 8,374 15,887 — 6,511 625 5 Commercial loans 703,990 17,524 20,236 — 5,292 1,981 559 Total Commercial Banking 3,454,748 55,278 62,507 — 24,263 3,616 635 Total $ 8,836,874 92,897 85,431 31 33,352 4,948 661 (1) Includes $17.4 million of nonaccrual TDRs. The following table provides information related to the loan portfolio by portfolio segment and by class of financing receivable at December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Total loans receivable Allowance for credit losses Nonaccrual loans (1) Loans 90 days past due and accruing TDRs Allowance related to TDRs Additional commitments to customers with loans classified as TDRs Personal Banking: Residential mortgage loans $ 2,868,127 2,574 14,476 — 7,550 560 — Home equity loans 1,342,918 3,189 6,745 32 1,973 393 26 Consumer loans 1,125,132 12,593 4,226 — — — — Total Personal Banking 5,336,177 18,356 25,447 32 9,523 953 26 Commercial Banking: Commercial real estate loans 2,754,390 21,588 34,864 — 19,358 1,384 476 Commercial loans 718,107 17,997 8,559 — 3,118 665 64 Total Commercial Banking 3,472,497 39,585 43,423 — 22,476 2,049 540 Total $ 8,808,674 57,941 68,870 32 31,999 3,002 566 (1) Includes $9.0 million of nonaccrual TDRs.
Schedule of the evaluation of impaired loans by portfolio segment and by class of financing receivable	The following table provides information related to the evaluation of impaired loans by portfolio segment and by class of financing receivable at December 31, 2019 prior to the adoption of ASU 2016-13 (in thousands): Loans collectively evaluated for impairment Loans individually evaluated for impairment Loans individually evaluated for impairment for which there is a related impairment reserve Related Loans individually evaluated for impairment for which there is no related reserve Personal Banking: Residential mortgage loans $ 2,860,026 8,101 8,101 560 — Home equity loans 1,340,944 1,974 1,974 393 — Consumer loans 1,125,123 9 9 3 — Total Personal Banking 5,326,093 10,084 10,084 956 — Commercial Banking: Commercial real estate loans 2,718,855 35,535 29,578 2,679 5,957 Commercial loans 694,424 23,683 18,337 8,127 5,346 Total Commercial Banking 3,413,279 59,218 47,915 10,806 11,303 Total $ 8,739,372 69,302 57,999 11,762 11,303
Schedule of troubled debt restructurings (including re-modified TDRs) by portfolio segment and by class of financing receivable	The following table provides a roll forward of troubled debt restructurings for the periods indicated (dollars in thousands): For the quarter ended March 31, 2020 2019 Number of contracts Amount Number of contracts Amount Beginning TDR balance: 176 $ 31,999 195 $ 33,608 New TDRs 2 2,518 — — Re-modified TDRs 2 2,076 — — Net paydowns — (2,841 ) — (796 ) Charge-offs: Residential mortgage loans — — — — Home equity loans 1 (10 ) — — Vehicle loans — — — — Commercial real estate loans — — — — Commercial real estate loans - owner occupied — — — — Commercial loans — — — — Paid-off loans: Residential mortgage loans 2 (330 ) — — Home equity loans — — — — Vehicle loans — — — — Commercial real estate loans 1 (26 ) — — Commercial real estate loans - owner occupied — — — — Commercial loans 3 (34 ) — — Ending TDR balance: 171 $ 33,352 195 $ 32,812 Accruing TDRs $ 15,977 $ 17,861 Non-accrual TDRs 17,375 14,951 The following tables provide information related to TDRs (including re-modified TDRs) by portfolio segment and by class of financing receivable during the periods indicated (in thousands): For the quarter ended March 31, 2020 Number of contracts Recorded investment at the time of modification Current recorded investment Current allowance Personal Banking: Residential mortgage loans — $ — — — Home equity loans 1 19 18 — Vehicle loans — — — — Consumer loans — — — — Total Personal Banking 1 19 18 — Commercial Banking: Commercial real estate loans — — — — Commercial real estate loans - owner occupied 2 2,077 2,076 176 Commercial loans 1 2,500 2,500 1,628 Total Commercial Banking 3 4,577 4,576 1,804 Total 4 $ 4,596 4,594 1,804 The following table provides information as of March 31, 2020 for TDRs (including re-modified TDRs) by type of modification, by portfolio segment and class of financing receivable for modifications during the quarter ended March 31, 2020 (in thousands): Type of modification Number of contracts Rate Payment Maturity date Other Total Personal Banking: Residential mortgage loans — $ — — — — — Home equity loans 1 — — 18 — 18 Vehicle loans — — — — — — Consumer loans — — — — — — Total Personal Banking 1 — — 18 — 18 Commercial Banking: Commercial real estate loans — — — — — — Commercial real estate loans - owner occupied 2 — — 2,076 — 2,076 Commercial loans 1 — — — 2,500 2,500 Total Commercial Banking 3 — — 2,076 2,500 4,576 Total 4 $ — — 2,094 2,500 4,594
Schedule of loan delinquencies	The following table provides information related to the amortized cost basis of loan payment delinquencies at March 31, 2020 (in thousands): 30-59 days delinquent 60-89 days delinquent 90 days or greater delinquent Total delinquency Current Total loans receivable 90 days or greater delinquent and accruing (1) Personal Banking: Residential mortgage loans $ 35,322 522 10,538 46,382 2,788,351 2,834,733 — Home equity loans 7,064 2,682 5,960 15,706 1,344,948 1,360,654 31 Vehicle loans 6,896 2,254 2,787 11,937 924,890 936,827 — Consumer loans 3,251 809 960 5,020 244,892 249,912 — Total Personal Banking 52,533 6,267 20,245 79,045 5,303,081 5,382,126 31 Commercial Banking: Commercial real estate loans 10,829 2,426 17,919 31,175 2,231,823 2,262,998 — Commercial real estate loans - owner occupied 2,094 568 7,597 10,259 477,501 487,760 — Commercial loans 7,548 315 16,860 24,723 679,267 703,990 — Total Commercial Banking 20,471 3,309 42,376 66,157 3,388,591 3,454,748 — Total loans $ 73,004 9,576 62,621 145,202 8,691,672 8,836,874 31 The following table provides information related to loan payment delinquencies at December 31, 2019 (in thousands): 30-59 days delinquent 60-89 days delinquent 90 days or greater delinquent Total delinquency Current Total loans receivable 90 days or Originated loans Personal Banking: Residential mortgage loans $ 20,447 5,572 11,080 37,099 2,748,090 2,785,189 — Home equity loans 5,119 2,096 4,573 11,788 1,088,136 1,100,023 — Consumer loans 8,969 3,198 3,467 15,634 1,073,103 1,088,638 — Total Personal Banking 34,535 10,866 19,120 64,521 4,909,329 4,973,850 — Commercial Banking: Commercial real estate loans 5,598 1,387 17,959 24,944 2,324,104 2,349,048 — Commercial loans 987 6,360 4,296 11,643 652,516 664,159 — Total Commercial Banking 6,585 7,747 22,255 36,587 2,976,620 3,013,207 — Total originated loans 41,120 18,613 41,375 101,108 7,885,949 7,987,057 — Acquired loans Personal Banking: Residential mortgage loans 2,849 121 1,695 4,665 78,273 82,938 93 Home equity loans 1,350 309 1,115 2,774 240,630 243,404 53 Consumer loans 239 104 144 487 35,498 35,985 1 Total Personal Banking 4,438 534 2,954 7,926 354,401 362,327 147 Commercial Banking: Commercial real estate loans 2,323 303 7,055 9,681 395,661 405,342 — Commercial loans 200 43 443 686 53,262 53,948 — Total Commercial Banking 2,523 346 7,498 10,367 448,923 459,290 — Total acquired loans 6,961 880 10,452 18,293 803,324 821,617 147 Total $ 48,081 19,493 51,827 119,401 8,689,273 8,808,674 147 (1) Represents acquired loans that were originally recorded at fair value upon acquisition. These loans are considered to be accruing because we can reasonably estimate future cash flows and expect to fully collect the carrying value of these loans. Therefore, we are accreting the difference between the carrying value and their expected cash flows into interest income.
Schedule of credit quality indicators	as of March 31, 2020 (in thousands): YTD March 31, 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving loans converted to term loans Total loans receivable Personal Banking: Residential mortgage loans Pass $ 123,025 475,573 288,056 293,228 229,808 1,405,981 — — 2,815,671 Substandard — — 108 564 216 18,174 — — 19,062 Total residential mortgage loans 123,025 475,573 288,163 293,792 230,024 1,424,155 — — 2,834,733 Home equity loans Pass 62,841 221,783 111,767 103,107 97,444 262,224 456,600 36,305 1,352,071 Substandard — 25 112 185 764 4,300 1,532 1,666 8,583 Total home equity loans 62,841 221,808 111,879 103,292 98,207 266,524 458,132 37,971 1,360,654 Vehicle loans Pass 126,861 428,865 246,493 80,750 36,919 14,147 — — 934,035 Substandard — 783 702 723 318 266 — — 2,792 Total vehicle loans 126,861 429,648 247,195 81,473 37,237 14,413 — — 936,827 Consumer loans Pass 25,967 96,581 29,891 13,869 5,552 5,559 68,590 2,942 248,951 Substandard — 252 61 79 19 28 430 92 961 Total consumer loans 25,967 96,833 29,952 13,948 5,571 5,587 69,020 3,034 249,912 Total Personal Banking 338,694 1,223,862 677,189 492,505 371,039 1,710,679 527,152 41,005 5,382,126 Business Banking: Commercial real estate loans Pass 72,226 303,571 260,769 276,681 197,330 767,889 228,723 5,952 2,113,142 Special Mention 105 2,063 7,209 35,698 6,297 8,888 4,989 801 66,051 Substandard 349 336 3,696 11,695 6,629 52,992 4,091 4,017 83,805 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial real estate loans 72,680 305,971 271,674 324,074 210,256 829,769 237,803 10,770 2,262,998 Commercial real estate loans - owner occupied Pass 2,615 65,489 93,389 79,888 45,873 121,067 11,180 3,440 422,940 Special Mention — 1,337 1,230 2,682 1,417 3,535 26 30 10,258 Substandard — 2,709 3,914 12,117 7,711 23,734 1,094 3,284 54,562 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial real estate loans - owner occupied 2,615 69,535 98,533 94,686 55,001 148,336 12,300 6,754 487,760 Commercial loans Pass 18,210 93,726 61,621 59,597 53,671 39,638 273,335 9,735 609,533 Special Mention — 5,811 1,922 551 6,981 717 26,634 418 43,034 Substandard 373 1,174 7,216 1,573 795 2,734 27,552 10,006 51,423 Doubtful — — — — — — — — — Loss — — — — — — — — — Total commercial loans 18,583 100,711 70,759 61,721 61,446 43,089 327,521 20,159 703,990 Total Business Banking 93,878 476,217 440,965 480,482 326,703 1,021,194 577,624 37,683 3,454,748 Total loans $ 432,572 1,700,079 1,118,154 972,987 697,742 2,731,873 1,104,776 78,688 8,836,874 For the three months ended March 31, 2020 , $4.7 million of revolving loans were converted to term loans. The following table sets forth information about credit quality indicators as of December 31, 2019 , prior to the adoption of ASU 2016-13 (in thousands): Pass Special mention Substandard Doubtful Loss Total loans receivable Originated loans Personal Banking: Residential mortgage loans $ 2,776,971 — 8,218 — — 2,785,189 Home equity loans 1,093,874 — 5,640 — — 1,099,514 Consumer loans 1,084,986 — 4,161 — — 1,089,147 Total Personal Banking 4,955,831 — 18,019 — — 4,973,850 Commercial Banking: Commercial real estate loans 2,188,823 70,327 89,898 — — 2,349,048 Commercial loans 571,011 42,352 50,796 — — 664,159 Total Commercial Banking 2,759,834 112,679 140,694 — — 3,013,207 Total originated loans 7,715,665 112,679 158,713 — — 7,987,057 Acquired loans Personal Banking: Residential mortgage loans 81,611 — 1,327 — — 82,938 Home equity loans 242,237 — 1,167 — — 243,404 Consumer loans 35,746 — 239 — — 35,985 Total Personal Banking 359,594 — 2,733 — — 362,327 Commercial Banking: Commercial real estate loans 349,993 10,243 45,106 — — 405,342 Commercial loans 45,972 28 7,948 — — 53,948 Total Commercial Banking 395,965 10,271 53,054 — — 459,290 Total acquired loans 755,559 10,271 55,787 — — 821,617 Total loans $ 8,471,224 122,950 214,500 — — 8,808,674
Schedule of information related to the outstanding principal balance and related carrying value of acquired loans	The following table provides information related to the outstanding principal balance and related carrying value of acquired loans for the dates indicated (in thousands): December 31, 2019 Acquired loans evaluated individually for future credit losses: Outstanding principal balance $ 7,187 Carrying value 4,975 Acquired loans evaluated collectively for future credit losses: Outstanding principal balance 826,412 Carrying value 816,642 Total acquired loans: Outstanding principal balance 833,599 Carrying value 821,617
Schedule of the changes in the accretable discount	The following table provides information related to the changes in the accretable discount, which includes income recognized from contractual cash flows for the dates indicated prior to the adoption of ASU 2016-13 (in thousands): Total Balance at December 31, 2018 $ 755 Accretion (551 ) Net reclassification from nonaccretable yield 966 Balance at December 31, 2019 $ 1,170

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets subject to amortization	The following table provides information for intangible assets subject to amortization at the dates indicated (in thousands): March 31, 2020 December 31, 2019 Amortizable intangible assets: Core deposit intangibles - gross $ 71,183 71,183 Less: accumulated amortization (52,357 ) (50,934 ) Core deposit intangibles - net 18,826 20,249 Customer and Contract intangible assets - gross 12,775 12,775 Less: accumulated amortization (10,176 ) (9,948 ) Customer and Contract intangible assets - net 2,599 2,827 Total intangible assets - net $ 21,425 23,076
Schedule of the actual aggregate amortization expense as well as estimated aggregate amortization expense, based upon current levels of intangible assets	The following table shows the actual aggregate amortization expense for the quarters ended March 31, 2020 and 2019 , as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for the current fiscal year and each of the five succeeding fiscal years (in thousands): For the quarter ended March 31, 2020 $ 1,651 For the quarter ended March 31, 2019 1,447 For the year ending December 31, 2020 6,237 For the year ending December 31, 2021 5,058 For the year ending December 31, 2022 3,976 For the year ending December 31, 2023 3,016 For the year ending December 31, 2024 2,249 For the year ending December 31, 2025 1,510
Schedule of the changes in carrying amount of goodwill	The following table provides information for the changes in the carrying amount of goodwill (in thousands): Total Balance at December 31, 2018 $ 307,420 Goodwill acquired 38,683 Balance at December 31, 2019 346,103 Goodwill acquired — Balance at March 31, 2020 $ 346,103

Borrowed Funds (Tables)

Borrowed Funds (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Schedule of Borrowed Funds	Borrowings March 31, 2020 Amount Average rate Term notes payable to the FHLB of Pittsburgh: Due within one year $ 100,000 0.74 % Total term notes payable to FHLB of Pittsburgh 100,000 Collateralized borrowings, due within one year 91,599 0.30 % Total borrowed funds $ 191,599

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	The following table sets forth the computation of basic and diluted EPS (in thousands, except share data and per share amounts): Quarter ended March 31, 2020 2019 Net income available to common shareholders $ 7,939 25,044 Weighted average common shares outstanding 105,882,553 103,101,789 Dilutive potential shares due to effect of stock options 265,694 1,394,803 Total weighted average common shares and dilutive potential shares $ 106,148,247 104,496,592 Basic earnings per share $ 0.08 0.24 Diluted earnings per share $ 0.07 0.24

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans	The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands): Quarter ended March 31, Pension benefits Other post-retirement benefits 2020 2019 2020 2019 Service cost $ 2,098 1,274 — — Interest cost 1,714 1,827 7 11 Expected return on plan assets (3,091 ) (2,759 ) — — Amortization of prior service cost (581 ) (581 ) — — Amortization of the net loss 924 855 5 17 Net periodic cost $ 1,064 616 12 28

Disclosures About Fair Value _2

Disclosures About Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of the carrying amount and estimated fair value of the entity's financial instruments included in the consolidated statement of financial condition	The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at March 31, 2020 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 276,454 276,454 276,454 — — Securities available-for-sale 765,579 765,579 — 765,579 — Securities held-to-maturity 17,208 17,968 — 17,968 — Loans receivable, net 8,737,551 8,751,479 — — 8,751,479 Residential mortgage loans held-for-sale 6,426 6,426 — — 6,426 Accrued interest receivable 25,531 25,531 25,531 — — Interest rate lock commitments 507 507 — — 507 Forward commitments 197 197 — 197 — Interest rate swaps 54,656 54,656 — 54,656 — FHLB stock 13,131 13,131 — — — Total financial assets $ 9,897,240 9,911,928 301,985 838,400 8,758,412 Financial liabilities: Savings and checking deposits $ 7,298,979 7,298,979 7,298,979 — — Time deposits 1,493,756 1,514,631 — — 1,514,631 Borrowed funds 191,599 194,224 194,224 — — Junior subordinated debentures 121,813 117,557 — — 117,557 Interest rate swaps 55,376 55,376 — 55,376 — Risk participation agreements 120 120 — 120 — Accrued interest payable 834 834 834 — — Total financial liabilities $ 9,162,477 9,181,721 7,494,037 55,496 1,632,188 The following table sets forth the carrying amount and estimated fair value of our financial instruments included in the Consolidated Statement of Financial Condition at December 31, 2019 (in thousands): Carrying amount Estimated fair value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 60,846 60,846 60,846 — — Securities available-for-sale 819,901 819,901 — 819,901 — Securities held-to-maturity 18,036 18,223 — 18,223 — Loans receivable, net 8,743,024 8,666,149 — — 8,666,149 Residential mortgage loans held-for-sale 7,709 7,709 — — 7,709 Accrued interest receivable 25,755 25,755 25,755 — — Interest rate lock commitments 559 559 — — 559 Forward commitments 145 145 — 145 — Interest rate swaps 20,889 20,889 — 20,889 — FHLB stock 14,740 14,740 — — — Total financial assets $ 9,711,604 9,634,916 86,601 859,158 8,674,417 Financial liabilities: Savings and checking accounts $ 7,022,597 7,022,597 7,022,597 — — Time deposits 1,569,410 1,574,063 — — 1,574,063 Borrowed funds 246,336 246,341 246,341 — — Junior subordinated debentures 121,800 115,518 — — 115,518 Interest rate swaps 20,952 20,952 — 20,952 — Risk participation agreements 39 39 — 39 — Accrued interest payable 1,142 1,142 1,142 — — Total financial liabilities $ 8,982,276 8,980,652 7,270,080 20,991 1,689,581
Schedule of assets and liabilities measured at fair value on a recurring basis	The following table represents assets and liabilities measured at fair value on a recurring basis at March 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Debt securities: Government sponsored enterprises $ — 80,169 — 80,169 States and political subdivisions — 44,697 — 44,697 Total debt securities — 124,866 — 124,866 Residential mortgage-backed securities: GNMA — 23,167 — 23,167 FNMA — 81,823 — 81,823 FHLMC — 48,113 — 48,113 Non-agency — 489 — 489 Collateralized mortgage obligations: GNMA — 202,997 — 202,997 FNMA — 175,080 — 175,080 FHLMC — 109,044 — 109,044 Total mortgage-backed securities — 640,713 — 640,713 Interest rate lock commitments — — 507 507 Forward commitments — 197 — 197 Interest rate swaps — 54,656 — 54,656 Total assets $ — 820,432 507 820,939 Interest rate swaps $ — 55,376 — 55,376 Risk participation agreements — 120 — 120 Total liabilities $ — 55,496 — 55,496 The following table represents assets and liabilities measured at fair value on a recurring basis at December 31, 2019 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Debt securities: U.S. government and agencies $ — 14,991 — 14,991 Government sponsored enterprises — 104,784 — 104,784 States and political subdivisions — 26,048 — 26,048 Corporate — 919 — 919 Total debt securities — 146,742 — 146,742 Residential mortgage-backed securities: GNMA — 23,264 — 23,264 FNMA — 89,259 — 89,259 FHLMC — 50,139 — 50,139 Non-agency — 497 — 497 Collateralized mortgage obligations: GNMA — 207,016 — 207,016 FNMA — 184,682 — 184,682 FHLMC — 118,302 — 118,302 Total mortgage-backed securities — 673,159 — 673,159 Interest rate lock commitments — — 559 559 Forward commitments — 145 — 145 Interest rate swaps — 20,889 — 20,889 Total assets $ — 840,935 559 841,494 Interest rate swaps $ — 20,952 — 20,952 Risk participation agreements — 39 — 39 Total liabilities $ — 20,991 — 20,991
Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table presents the changes in Level 3 assets and liabilities measured at fair value on a recurring basis (in thousands): For the quarter ended March 31, 2020 2019 Beginning balance January 1, $ 559 — Total gains or losses: Included in net income — — Included in other comprehensive income — — Purchases — — Sales 52 — Transfers from Level 3 — — Transfers into Level 3 — — Ending balance March 31, $ 507 —
Schedule of fair value measurement for nonrecurring assets	The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of March 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans individually assessed $ — — 47,240 47,240 Real estate owned, net — — 1,075 1,075 Total assets $ — — 48,315 48,315 The following table represents the fair market measurement for only those nonrecurring assets that had a fair market value below the carrying amount as of December 31, 2019 (in thousands): Level 1 Level 2 Level 3 Total assets at fair value Loans individually assessed $ — — 46,238 46,238 Real estate owned, net — — 950 950 Total assets $ — — 47,188 47,188
Schedule of quantitative information about assets measured at fair value on a recurring and nonrecurring basis for Level 3 fair value measurements	The following table presents additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which we have utilized Level 3 inputs to determine fair value at March 31, 2020 (in thousands): Fair value Valuation techniques Significant unobservable inputs Range (weighted average) Loans individually assessed $ 47,240 Appraisal value (1) Estimated cost to sell 10.0% Discounted cash flow Discount rate 4.25% to 11.0% (7.50%) Real estate owned, net $ 1,075 Appraisal value (1) Estimated cost to sell 10.0% (1) Fair value is generally determined through independent appraisals of the underlying collateral, which may include Level 3 inputs that are not identifiable, or by using the discounted cash flow method if the loan is not collateral dependent.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivatives not designated as hedging instruments	The following table presents information regarding our derivative financial instruments for the periods indicated (in thousands): Asset derivatives Liability derivatives Notional amount Fair value Notional amount Fair value At March 31, 2020 Derivatives designated as hedging instruments: Interest rate swap agreements $ — — 100,000 558 Derivatives not designated as hedging instruments: Interest rate swap agreements 446,598 54,656 446,598 54,818 Interest rate lock commitments 80,158 507 — — Forward commitments 5,465 197 — — Risk participation agreements — — 41,123 120 Total Derivatives $ 532,221 55,360 587,721 55,496 At December 31, 2019 Derivatives not designated as hedging instruments: Interest rate swap agreements $ 391,502 20,889 391,502 20,952 Interest rate lock commitments 24,373 559 — — Forward commitments 5,151 145 — — Risk participation agreements — — 41,164 39 Total derivatives $ 421,026 21,593 432,666 20,991
Derivative instruments gain (loss)	The following table presents income or expense recognized on derivatives for the periods indicated (in thousands): For the quarter ended March 31, 2020 2019 Hedging derivatives: Decrease in interest expense $ (12 ) — Non-hedging swap derivatives: Decrease in other income (177 ) — Increase in mortgage banking income 1 —
Schedule of key characteristics of interest rate derivative transactions	The following table presents the key characteristics of the Company's interest rate derivative transactions designated as cash flow hedges of interest rate risk as of March 31, 2020 (in thousands): Notional amount Effective rate Estimated increase/(decrease) to interest expense in the next twelve months Maturity Date Remaining term (in months) Interest rate products: Issued March 16, 2020 $ 30,000 0.81 % 200 3/17/2025 60 Issued March 20, 2020 25,000 0.15 % 205 3/20/2023 36 Issued March 20, 2020 25,000 0.18 % 197 3/20/2024 48 Issued March 26, 2020 20,000 (0.07 )% 166 9/26/2024 54 Total $ 100,000 768

Changes in Accumulated Other _2

Changes in Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2020
Equity [Abstract]
Schedule of changes in accumulated other comprehensive income by component	The following tables show the changes in accumulated other comprehensive income/(loss) by component for the periods indicated (in thousands): For the quarter ended March 31, 2020 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2019 $ 3,147 — (40,088 ) (36,941 ) Other comprehensive income/(loss) before reclassification adjustments (1) (2) 8,157 (409 ) — 7,748 Amounts reclassified from accumulated other comprehensive income (3), (4) 37 — 249 286 Net other comprehensive income/(loss) 8,194 (409 ) 249 8,034 Balance as of March 31, 2020 $ 11,341 (409 ) (39,839 ) (28,907 ) For the quarter ended March 31, 2019 Unrealized gains and (losses) on securities available- for-sale Change in fair value of interest rate swaps Change in defined benefit pension plans Total Balance as of December 31, 2018 $ (6,832 ) — (32,864 ) (39,696 ) Other comprehensive income before reclassification adjustments (5) 4,452 — — 4,452 Amounts reclassified from accumulated other comprehensive income (6), (7) — — 209 209 Net other comprehensive income 4,452 — 209 4,661 Balance as of March 31, 2019 $ (2,380 ) — (32,655 ) (35,035 ) (1) Consists of unrealized holding loss, net of tax of $3,277 . (2) Change in fair value of interest rate swaps, net of tax $(162) . (3) Consists of realized gain on securities (gain on sales of investments, net) of $ (51) , net of tax (income tax expense) of $ 14 . (4) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net actuarial loss (compensation and employee benefits) of $(929) , net of tax (income tax expense) of $99 . (5) Consists of unrealized holding loss, net of tax $1,781 . (6) There were no realized gains on securities reclassified from accumulated other comprehensive income. (7) Consists of amortization of prior service cost (compensation and employee benefits) of $581 and amortization of net actuarial loss (compensation and employee benefits) of $(872) , net of tax (income tax expense) of $82 .

Basis of Presentation and Inf_3

Basis of Presentation and Informational Disclosures (Details)	Jan. 01, 2020USD ($)	Mar. 31, 2020USD ($)bank	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Stock Related Compensation
Number of banking locations | bank		178
Stock-based compensation expense		$ 1,500,000	$ 1,200,000
Unrecognized tax benefits liability		0
Allowance for loan losses		92,897,000	55,721,000	$ 57,941,000	$ 55,214,000
Retained earnings		561,380,000		583,407,000
Accrued interest receivable on held-to-maturity debt securities		1,300,000		1,500,000
Accrued interest receivable on available-for-sale debt securities		1,000,000		900,000
Accrued Interest receivable on loans		23,200,000		23,300,000
Loans held-for-sale		6,426,000		7,709,000
Accounting Standards Update 2016-13
Stock Related Compensation
Allowance for loan losses	$ 10,800,000
Reserve for off-balance sheet exposures	2,300,000
Deferred tax assets	2,900,000
Retained earnings	$ 9,600,000
Deferral period	2 years
Phase in of impact of adoption, percent	25.00%
Employee Stock Option
Stock Related Compensation
Compensation expense yet to be recognized		3,300,000
Common stock
Stock Related Compensation
Compensation expense yet to be recognized		16,300,000
Acquired
Stock Related Compensation
Allowance for loan losses		10,466,000	4,010,000	6,502,000	3,463,000
Acquired | Accounting Standards Update 2016-13
Stock Related Compensation
Allowance for loan losses	$ 517,000
Personal Banking
Stock Related Compensation
Allowance for loan losses		37,619,000		18,356,000
Personal Banking | Acquired
Stock Related Compensation
Allowance for loan losses			945,000		850,000
Residential mortgage loans | Personal Banking
Stock Related Compensation
Allowance for loan losses		10,673,000		2,574,000
Loans held-for-sale		$ 6,400,000	0	$ 7,700,000
Residential mortgage loans | Personal Banking | Acquired
Stock Related Compensation
Allowance for loan losses			$ 92,000		$ 83,000
January 1, 2022 | Accounting Standards Update 2016-13
Stock Related Compensation
Phase in of impact of adoption, percent	25.00%
Each Subsequent Year Beginning January 1, 2023 | Accounting Standards Update 2016-13
Stock Related Compensation
Phase in of impact of adoption, percent	25.00%

Marketable Securities - Availab

Marketable Securities - Available For Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized cost
Residential mortgage-backed securities	$ 749,703	$ 815,495
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	16,923	7,351
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(1,047)	(2,945)
Fair value
Securities available-for-sale	765,579	819,901
U.S. government and agencies
Amortized cost
Due in one year through five years		14,951
Gross unrealized holding gains
Due in one year through five years		40
Gross unrealized holding losses
Due in one year through five years		0
Fair value
Due in one year through five years		14,991
Debt issued by government sponsored enterprises:
Amortized cost
Due in less than one year	50,761	50,777
Due in one year through five years	25,227	50,229
Due in five years through ten years	3,411
Due after ten years		3,716
Gross unrealized holding gains
Due in less than one year	475	345
Due in one year through five years	284	0
Due in five years through ten years	114
Due after ten years		53
Gross unrealized holding losses
Due in less than one year	0	0
Due in one year through five years	0	(227)
Due in five years through ten years	(103)
Due after ten years		(109)
Fair value
Due in less than one year	51,236	51,122
Due in one year through five years	25,511	50,002
Due in five years through ten years	3,422
Due after ten years		3,660
Municipal securities
Amortized cost
Due in less than one year	812	809
Due in one year through five years	2,897	2,891
Due in five years through ten years	8,903	10,155
Due after ten years	31,400	11,695
Gross unrealized holding gains
Due in less than one year	3	4
Due in one year through five years	68	79
Due in five years through ten years	178	148
Due after ten years	436	267
Gross unrealized holding losses
Due in less than one year	0	0
Due in one year through five years	0	0
Due in five years through ten years	0	0
Due after ten years	0	0
Fair value
Due in less than one year	815	813
Due in one year through five years	2,965	2,970
Due in five years through ten years	9,081	10,303
Due after ten years	31,836	11,962
Corporate debt securities
Amortized cost
Due in five years through ten years		919
Gross unrealized holding gains
Due in five years through ten years		0
Gross unrealized holding losses
Due in five years through ten years		0
Fair value
Due in five years through ten years		919
Residential mortgage-backed securities
Amortized cost
Residential mortgage-backed securities	626,292	669,353
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	15,365	6,415
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(944)	(2,609)
Fair value
Securities available-for-sale	640,713	673,159
Fixed rate | Pass-through
Amortized cost
Residential mortgage-backed securities	130,729	142,421
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	4,453	1,941
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(10)	(881)
Fair value
Securities available-for-sale	135,172	143,481
Fixed rate | Agency CMOs
Amortized cost
Residential mortgage-backed securities	423,625	452,256
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	10,447	3,518
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(60)	(1,606)
Fair value
Securities available-for-sale	434,012	454,168
Variable rate | Pass-through
Amortized cost
Residential mortgage-backed securities	18,025	18,933
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	403	749
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(8)	(4)
Fair value
Securities available-for-sale	18,420	19,678
Variable rate | Agency CMOs
Amortized cost
Residential mortgage-backed securities	53,913	55,743
Gross unrealized holding gains
Residential mortgage-backed securities, gross unrealized holding gains	62	207
Gross unrealized holding losses
Residential mortgage-backed securities, gross unrealized holding losses	(866)	(118)
Fair value
Securities available-for-sale	$ 53,109	$ 55,832

Marketable Securities - Held To

Marketable Securities - Held To Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized cost
Marketable securities held-to-maturity, amortized cost	$ 17,208	$ 18,036
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	768	187
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	(8)	0
Fair value
Marketable securities held-to-maturity, fair value	17,968	18,223
Residential mortgage-backed securities
Amortized cost
Marketable securities held-to-maturity, amortized cost	17,208	18,036
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	768	187
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	(8)	0
Fair value
Marketable securities held-to-maturity, fair value	17,968	18,223
Fixed rate | Pass-through
Amortized cost
Marketable securities held-to-maturity, amortized cost	2,096	2,197
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	113	83
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	0	0
Fair value
Marketable securities held-to-maturity, fair value	2,209	2,280
Fixed rate | Agency CMOs
Amortized cost
Marketable securities held-to-maturity, amortized cost	13,389	14,016
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	639	68
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	0	0
Fair value
Marketable securities held-to-maturity, fair value	14,028	14,084
Variable rate | Pass-through
Amortized cost
Marketable securities held-to-maturity, amortized cost	1,119	1,210
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	15	28
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	0	0
Fair value
Marketable securities held-to-maturity, fair value	1,134	1,238
Variable rate | Agency CMOs
Amortized cost
Marketable securities held-to-maturity, amortized cost	604	613
Gross unrealized holding gains
Marketable securities held-to-maturity, gross unrealized holding gains	1	8
Gross unrealized holding losses
Marketable securities held-to-maturity, gross unrealized holding losses	(8)	0
Fair value
Marketable securities held-to-maturity, fair value	$ 597	$ 621

Marketable Securities - Held _2

Marketable Securities - Held To Maturity, by Contractual Maturity (Details) $ in Thousands	Mar. 31, 2020USD ($)
Amortized cost
Total marketable securities held-to-maturity	$ 17,208
Fair value
Total marketable securities held-to-maturity	17,968
Residential mortgage-backed securities
Amortized cost
Due in less than one year	1
Due in one year through five years	599
Due after five years through ten years	929
Due after ten years	15,679
Total marketable securities held-to-maturity	17,208
Fair value
Due in less than one year	1
Due in one year through five years	626
Due after five years through ten years	981
Due after ten years	16,360
Total marketable securities held-to-maturity	$ 17,968

Marketable Securities - Fair Va

Marketable Securities - Fair Value of and Gross Unrealized Losses on Investment Securities (Details) $ in Thousands	Mar. 31, 2020USD ($)security	Dec. 31, 2019USD ($)
Marketable securities
Less than 12 months - Fair value	$ 46,190	$ 173,112
Less than 12 months - Unrealized loss	(847)	(858)
12 months or more - Fair value	11,487	161,944
12 months or more - Unrealized loss	(200)	(2,087)
Total - Fair value	57,677	335,056
Total - Unrealized loss	$ (1,047)	(2,945)
Number of available-for-sale debt securities in unrealized loss position | security	83
U.S. government and agencies
Marketable securities
Less than 12 months - Fair value	$ 0	0
Less than 12 months - Unrealized loss	0	0
12 months or more - Fair value	2,320	52,620
12 months or more - Unrealized loss	(103)	(336)
Total - Fair value	2,320	52,620
Total - Unrealized loss	(103)	(336)
Residential mortgage-backed securities | Agency CMOs
Marketable securities
Less than 12 months - Fair value	46,190	173,112
Less than 12 months - Unrealized loss	(847)	(858)
12 months or more - Fair value	9,167	109,324
12 months or more - Unrealized loss	(97)	(1,751)
Total - Fair value	55,357	282,436
Total - Unrealized loss	$ (944)	$ (2,609)

Marketable Securities - Credit

Marketable Securities - Credit Quality of Held To Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities:	$ 17,208	$ 18,036
Residential mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities:	17,208
AA Plus
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities:	17,208
AA Plus | Residential mortgage-backed securities
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Held-to-maturity securities:	$ 17,208

Loans Receivable - Summary of O

Loans Receivable - Summary of Originated and Acquired Loans (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 8,836,874,000	$ 8,808,674,000
Allowance for credit losses	(92,897,000)	(57,941,000)	$ (55,721,000)	$ (55,214,000)
Total loans receivable, net	8,743,977,000	8,750,733,000
Loans held-for-sale	6,426,000	7,709,000
Unearned income, unamortized premiums and discounts and deferred fees and costs	44,700,000	40,200,000
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	5,382,126,000	5,336,177,000
Allowance for credit losses	(37,619,000)	(18,356,000)
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,834,733,000	2,868,127,000
Allowance for credit losses	(10,673,000)	(2,574,000)
Loans held-for-sale	6,400,000	7,700,000	0
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,360,654,000	1,343,427,000
Allowance for credit losses	(9,786,000)	(3,189,000)
Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	936,827,000
Loans and Leases Receivable, Gross	936,827,000	861,192,000
Allowance for credit losses	(11,994,000)	(7,292,000)
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	249,912,000	263,431,000
Allowance for credit losses	(5,166,000)	(5,301,000)
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	3,454,748,000	3,472,497,000
Allowance for credit losses	(55,278,000)	(39,585,000)
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,262,998,000	2,228,109,000
Allowance for credit losses	(29,380,000)	(15,843,000)
Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	487,760,000	526,281,000
Allowance for credit losses	(8,374,000)	(5,745,000)
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	703,990,000	718,107,000
Allowance for credit losses	(17,524,000)	(17,997,000)
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	8,080,528,000	7,987,057,000
Allowance for credit losses	(82,431,000)	(51,439,000)	(51,711,000)	(51,751,000)
Total loans receivable, net	7,998,097,000	7,935,618,000
Originated | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	5,060,438,000	4,973,850,000
Allowance for credit losses			(18,602,000)	(18,318,000)
Originated | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	2,758,695,000	2,785,189,000
Allowance for credit losses			(4,005,000)	(4,054,000)
Originated | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,129,370,000	1,100,023,000
Allowance for credit losses			(3,062,000)	(3,184,000)
Originated | Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	929,204,000
Loans and Leases Receivable, Gross		850,804,000
Originated | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	243,169,000	237,834,000
Allowance for credit losses			(11,535,000)	(11,080,000)
Originated | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	3,020,090,000	3,013,207,000
Allowance for credit losses			(33,109,000)	(33,433,000)
Originated | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	1,953,458,000	1,915,949,000
Allowance for credit losses			(25,470,000)	(26,379,000)
Originated | Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	416,283,000	433,099,000
Originated | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	650,349,000	664,159,000
Allowance for credit losses			(7,639,000)	(7,054,000)
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	756,346,000	821,617,000
Allowance for credit losses	(10,466,000)	(6,502,000)	(4,010,000)	(3,463,000)
Total loans receivable, net	745,880,000	815,115,000
Acquired | Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	321,688,000	362,327,000
Allowance for credit losses			(945,000)	(850,000)
Acquired | Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	76,038,000	82,938,000
Allowance for credit losses			(92,000)	(83,000)
Acquired | Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	231,284,000	243,404,000
Allowance for credit losses			(399,000)	(348,000)
Acquired | Personal Banking | Vehicle loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	7,623,000	10,388,000
Acquired | Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	6,743,000	25,597,000
Allowance for credit losses			(454,000)	(419,000)
Acquired | Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	434,658,000	459,290,000
Acquired | Commercial Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses			(2,467,000)	(1,996,000)
Acquired | Commercial Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses			(598,000)	(617,000)
Acquired | Commercial Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses			$ (3,065,000)	$ (2,613,000)
Acquired | Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	309,540,000	312,160,000
Acquired | Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	71,477,000	93,182,000
Acquired | Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable, gross	$ 53,641,000	$ 53,948,000

Loans Receivable - Changes in t

Loans Receivable - Changes in the Allowance for Losses on Loans Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020	Jan. 01, 2019
Allowance for loan losses
Cumulative effect of ASU 2016-13			$ 9,649	$ (1,570)
Changes in allowance for losses on allocated loans receivable
Beginning balance	$ 57,941	$ 55,214
Current period provision	27,637	6,467
Charge-offs	(5,266)	(7,405)
Recoveries	1,793	1,445
Ending balance	92,897	55,721
Loans classified as held-for-investment sold	50,000
Gain on sale of loans	1,302	0
Personal Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	18,356
Current period provision	10,666
Charge-offs	(4,120)
Recoveries	1,072
Ending balance	37,619
Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	2,574
Current period provision	894
Charge-offs	(343)
Recoveries	107
Ending balance	10,673
Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	3,189
Current period provision	895
Charge-offs	(289)
Recoveries	205
Ending balance	9,786
Personal Banking | Vehicle loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	7,292
Current period provision	5,359
Charge-offs	(1,843)
Recoveries	344
Ending balance	11,994
Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,301
Current period provision	3,518
Charge-offs	(1,645)
Recoveries	416
Ending balance	5,166
Commercial Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	39,585
Current period provision	16,971
Charge-offs	(1,146)
Recoveries	721
Ending balance	55,278
Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	15,843
Current period provision	11,269
Charge-offs	(310)
Recoveries	290
Ending balance	29,380
Commercial Banking | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	5,745
Current period provision	1,365
Charge-offs	(21)
Recoveries	7
Ending balance	8,374
Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	17,997
Current period provision	4,337
Charge-offs	(815)
Recoveries	424
Ending balance	17,524
Off-Balance Sheet Exposure
Changes in allowance for losses on allocated loans receivable
Beginning balance	974
Current period provision	1,480
Charge-offs	0
Recoveries	0
Ending balance	4,704
Off-Balance Sheet Exposure | Personal Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	725
Current period provision	4
Charge-offs	0
Recoveries	0
Ending balance	34
Off-Balance Sheet Exposure | Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	323
Current period provision	4
Charge-offs	0
Recoveries	0
Ending balance	34
Off-Balance Sheet Exposure | Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	402
Current period provision	0
Charge-offs	0
Recoveries	0
Ending balance	0
Off-Balance Sheet Exposure | Commercial Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance	249
Current period provision	1,476
Charge-offs	0
Recoveries	0
Ending balance	4,670
Off-Balance Sheet Exposure | Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	77
Current period provision	1,283
Charge-offs	0
Recoveries	0
Ending balance	3,294
Off-Balance Sheet Exposure | Commercial Banking | Commercial real estate loans - owner occupied
Changes in allowance for losses on allocated loans receivable
Beginning balance	3
Current period provision	4
Charge-offs	0
Recoveries	0
Ending balance	95
Off-Balance Sheet Exposure | Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance	169
Current period provision	189
Charge-offs	0
Recoveries	0
Ending balance	1,281
Originated
Changes in allowance for losses on allocated loans receivable
Beginning balance	51,439	51,751
Current period provision		3,383
Charge-offs		(4,475)
Recoveries		1,052
Ending balance	82,431	51,711
Originated | Personal Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance		18,318
Current period provision		2,973
Charge-offs		(3,449)
Recoveries		760
Ending balance		18,602
Originated | Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		4,054
Current period provision		186
Charge-offs		(349)
Recoveries		114
Ending balance		4,005
Originated | Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		3,184
Current period provision		(35)
Charge-offs		(112)
Recoveries		25
Ending balance		3,062
Originated | Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		11,080
Current period provision		2,822
Charge-offs		(2,988)
Recoveries		621
Ending balance		11,535
Originated | Commercial Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance		33,433
Current period provision		410
Charge-offs		(1,026)
Recoveries		292
Ending balance		33,109
Originated | Commercial Banking | Commercial real estate loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		26,379
Current period provision		(464)
Charge-offs		(569)
Recoveries		124
Ending balance		25,470
Originated | Commercial Banking | Commercial loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		7,054
Current period provision		874
Charge-offs		(457)
Recoveries		168
Ending balance		7,639
Acquired
Changes in allowance for losses on allocated loans receivable
Beginning balance	6,502	3,463
Current period provision		3,084
Charge-offs		(2,930)
Recoveries		393
Ending balance	10,466	4,010
Acquired | Personal Banking
Changes in allowance for losses on allocated loans receivable
Beginning balance		850
Current period provision		87
Charge-offs		(82)
Recoveries		90
Ending balance		945
Acquired | Personal Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		83
Current period provision		8
Charge-offs		(8)
Recoveries		9
Ending balance		92
Acquired | Personal Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		348
Current period provision		45
Charge-offs		(42)
Recoveries		48
Ending balance		399
Acquired | Personal Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		419
Current period provision		34
Charge-offs		(32)
Recoveries		33
Ending balance		454
Acquired | Commercial Banking | Residential mortgage loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		1,996
Current period provision		255
Charge-offs		(35)
Recoveries		251
Ending balance		2,467
Acquired | Commercial Banking | Home equity loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		617
Current period provision		2,742
Charge-offs		(2,813)
Recoveries		52
Ending balance		598
Acquired | Commercial Banking | Consumer loans
Changes in allowance for losses on allocated loans receivable
Beginning balance		2,613
Current period provision		2,997
Charge-offs		(2,848)
Recoveries		303
Ending balance		$ 3,065
Accounting Standards Update 2016-13
Allowance for loan losses
Cumulative effect of ASU 2016-13			10,792
Changes in allowance for losses on allocated loans receivable
Initial allowance on PCD loans	$ 517
Accounting Standards Update 2016-13 | Personal Banking
Allowance for loan losses
Cumulative effect of ASU 2016-13			11,645
Accounting Standards Update 2016-13 | Personal Banking | Residential mortgage loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			7,441
Accounting Standards Update 2016-13 | Personal Banking | Home equity loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			5,786
Accounting Standards Update 2016-13 | Personal Banking | Vehicle loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			842
Accounting Standards Update 2016-13 | Personal Banking | Consumer loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			(2,424)
Accounting Standards Update 2016-13 | Commercial Banking
Allowance for loan losses
Cumulative effect of ASU 2016-13			(853)
Accounting Standards Update 2016-13 | Commercial Banking | Commercial real estate loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			2,288
Accounting Standards Update 2016-13 | Commercial Banking | Commercial real estate loans - owner occupied
Allowance for loan losses
Cumulative effect of ASU 2016-13			1,278
Accounting Standards Update 2016-13 | Commercial Banking | Commercial loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			(4,419)
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure
Allowance for loan losses
Cumulative effect of ASU 2016-13			2,250
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Personal Banking
Allowance for loan losses
Cumulative effect of ASU 2016-13			(695)
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Personal Banking | Home equity loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			(293)
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Personal Banking | Consumer loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			(402)
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Commercial Banking
Allowance for loan losses
Cumulative effect of ASU 2016-13			2,945
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Commercial Banking | Commercial real estate loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			1,934
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Commercial Banking | Commercial real estate loans - owner occupied
Allowance for loan losses
Cumulative effect of ASU 2016-13			88
Accounting Standards Update 2016-13 | Off-Balance Sheet Exposure | Commercial Banking | Commercial loans
Allowance for loan losses
Cumulative effect of ASU 2016-13			$ 923

Loans Receivable - Loan Portfol

Loans Receivable - Loan Portfolio by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	$ 8,836,874		$ 8,808,674
Allowance for credit losses	92,897		57,941
Nonaccrual loans	85,431
Nonaccrual loans	76,628	$ 68,870	68,870
Loans 90 days past due and accruing	31		32
TDRs	33,352		31,999	$ 32,812	$ 33,608
Allowance related to TDRs	4,948		3,002
Additional commitments to customers with loans classified as TDRs	661		566
Nonaccrual TDRs	17,375		9,000	$ 14,951
Personal Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	5,382,126		5,336,177
Allowance for credit losses	37,619		18,356
Nonaccrual loans	22,924
Nonaccrual loans	22,924	25,447	25,447
Loans 90 days past due and accruing	31		32
TDRs	9,089		9,523
Allowance related to TDRs	1,332		953
Additional commitments to customers with loans classified as TDRs	26		26
Personal Banking | Residential mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	2,834,733		2,868,127
Allowance for credit losses	10,673		2,574
Nonaccrual loans	11,651
Nonaccrual loans	11,651	14,476	14,476
Loans 90 days past due and accruing	0		0
TDRs	7,183		7,550
Allowance related to TDRs	865		560
Additional commitments to customers with loans classified as TDRs	0		0
Personal Banking | Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	1,360,654		1,342,918
Allowance for credit losses	9,786		3,189
Nonaccrual loans	7,106
Nonaccrual loans	7,106	6,745	6,745
Loans 90 days past due and accruing	31		32
TDRs	1,906		1,973
Allowance related to TDRs	467		393
Additional commitments to customers with loans classified as TDRs	26		26
Personal Banking | Consumer finance loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	936,827
Allowance for credit losses	11,994
Nonaccrual loans	3,231
Loans 90 days past due and accruing	0
TDRs	0
Allowance related to TDRs	0
Additional commitments to customers with loans classified as TDRs	0
Personal Banking | Consumer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	249,912		1,125,132
Allowance for credit losses	5,166		12,593
Nonaccrual loans	936
Nonaccrual loans	936	1,079	4,226
Loans 90 days past due and accruing	0		0
TDRs	0		0
Allowance related to TDRs	0		0
Additional commitments to customers with loans classified as TDRs	0		0
Commercial Banking
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	3,454,748		3,472,497
Allowance for credit losses	55,278		39,585
Nonaccrual loans	62,507
Nonaccrual loans	53,704	43,423	43,423
Loans 90 days past due and accruing	0		0
TDRs	24,263		22,476
Allowance related to TDRs	3,616		2,049
Additional commitments to customers with loans classified as TDRs	635		540
Commercial Banking | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	2,262,998		2,754,390
Allowance for credit losses	29,380		21,588
Nonaccrual loans	26,384
Nonaccrual loans	22,730	18,832	34,864
Loans 90 days past due and accruing	0		0
TDRs	12,460		19,358
Allowance related to TDRs	1,010		1,384
Additional commitments to customers with loans classified as TDRs	71		476
Commercial Banking | Commercial real estate loans - owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	487,760
Allowance for credit losses	8,374
Nonaccrual loans	15,887
Nonaccrual loans	12,136	16,032
Loans 90 days past due and accruing	0
TDRs	6,511
Allowance related to TDRs	625
Additional commitments to customers with loans classified as TDRs	5
Commercial Banking | Commercial loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans receivable	703,990		718,107
Allowance for credit losses	17,524		17,997
Nonaccrual loans	20,236
Nonaccrual loans	18,838	$ 8,559	8,559
Loans 90 days past due and accruing	0		0
TDRs	5,292		3,118
Allowance related to TDRs	1,981		665
Additional commitments to customers with loans classified as TDRs	$ 559		$ 64

Loans Receivable - Composition

Loans Receivable - Composition of Impaired Loans by Portfolio Segment and Class of Financing Receivable (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	$ 76,628,000	$ 68,870,000	$ 68,870,000
Nonaccrual loans with no allowance	8,803,000
Loans 90 days past due and accruing	31,000	147,000
Amortized cost basis of collateral-dependent loans	43,752,000
Total impaired loans		105,993,000
Average recorded investment in impaired loans		88,643,000
Interest income recognized on impaired loans	217,000	3,070,000
Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	22,924,000	25,447,000	25,447,000
Nonaccrual loans with no allowance	0
Loans 90 days past due and accruing	31,000
Amortized cost basis of collateral-dependent loans	8,345,000
Total impaired loans		33,918,000
Average recorded investment in impaired loans		32,180,000
Interest income recognized on impaired loans		1,235,000
Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	11,651,000	14,476,000	14,476,000
Nonaccrual loans with no allowance	0
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	6,677,000
Total impaired loans		21,293,000
Average recorded investment in impaired loans		19,767,000
Interest income recognized on impaired loans		688,000
Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	7,106,000	6,745,000	6,745,000
Nonaccrual loans with no allowance	0
Loans 90 days past due and accruing	31,000
Amortized cost basis of collateral-dependent loans	99,000
Total impaired loans		8,399,000
Average recorded investment in impaired loans		8,571,000
Interest income recognized on impaired loans		368,000
Personal Banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	3,231,000		3,147,000
Nonaccrual loans with no allowance	0
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	1,569,000
Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	936,000	4,226,000	1,079,000
Nonaccrual loans with no allowance	0
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	0
Total impaired loans		4,226,000
Average recorded investment in impaired loans		3,842,000
Interest income recognized on impaired loans		179,000
Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	53,704,000	43,423,000	43,423,000
Nonaccrual loans with no allowance	8,803,000
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	35,407,000
Total impaired loans		72,075,000
Average recorded investment in impaired loans		56,463,000
Interest income recognized on impaired loans		1,835,000
Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	22,730,000	34,864,000	18,832,000
Nonaccrual loans with no allowance	3,654,000
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	13,922,000
Total impaired loans		46,126,000
Average recorded investment in impaired loans		46,284,000
Interest income recognized on impaired loans		1,490,000
Commercial Banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	12,136,000		16,032,000
Nonaccrual loans with no allowance	3,751,000
Amortized cost basis of collateral-dependent loans	5,841,000
Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans	18,838,000	8,559,000	$ 8,559,000
Nonaccrual loans with no allowance	1,398,000
Loans 90 days past due and accruing	0
Amortized cost basis of collateral-dependent loans	15,644,000
Total impaired loans		25,949,000
Average recorded investment in impaired loans		10,179,000
Interest income recognized on impaired loans		345,000
90 days or greater delinquent
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		51,680,000
90 days or greater delinquent | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		21,927,000
90 days or greater delinquent | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		12,682,000
90 days or greater delinquent | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		5,635,000
90 days or greater delinquent | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		3,610,000
90 days or greater delinquent | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		29,753,000
90 days or greater delinquent | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		25,014,000
90 days or greater delinquent | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		4,739,000
Less than 90 days delinquent
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		17,190,000
Loans less than 90 days delinquent reviewed for impairment		16,849,000
TDRs less than 90 days delinquent not included elsewhere		20,274,000
Less than 90 days delinquent | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		3,520,000
Loans less than 90 days delinquent reviewed for impairment		0
TDRs less than 90 days delinquent not included elsewhere		8,471,000
Less than 90 days delinquent | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		1,794,000
Loans less than 90 days delinquent reviewed for impairment		0
TDRs less than 90 days delinquent not included elsewhere		6,817,000
Less than 90 days delinquent | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		1,110,000
Loans less than 90 days delinquent reviewed for impairment		0
TDRs less than 90 days delinquent not included elsewhere		1,654,000
Less than 90 days delinquent | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		616,000
Loans less than 90 days delinquent reviewed for impairment		0
TDRs less than 90 days delinquent not included elsewhere		0
Less than 90 days delinquent | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		13,670,000
Loans less than 90 days delinquent reviewed for impairment		16,849,000
TDRs less than 90 days delinquent not included elsewhere		11,803,000
Less than 90 days delinquent | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		9,850,000
Loans less than 90 days delinquent reviewed for impairment		933,000
TDRs less than 90 days delinquent not included elsewhere		10,329,000
Less than 90 days delinquent | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Nonaccrual loans		3,820,000
Loans less than 90 days delinquent reviewed for impairment		15,916,000
TDRs less than 90 days delinquent not included elsewhere		1,474,000
Real estate
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	30,466,000
Real estate | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	6,776,000
Real estate | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	6,677,000
Real estate | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	99,000
Real estate | Personal Banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Real estate | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Real estate | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	23,690,000
Real estate | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	13,922,000
Real estate | Commercial Banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	5,841,000
Real estate | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	3,927,000
Equipment
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	11,717,000
Equipment | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Personal Banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	11,717,000
Equipment | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Commercial Banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Equipment | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	11,717,000
Other
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,569,000
Other | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,569,000
Other | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Personal Banking | Vehicle loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	1,569,000
Other | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Commercial Banking | Commercial real estate loans - owner occupied
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	0
Other | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Amortized cost basis of collateral-dependent loans	$ 0
Acquired loans evaluated individually for future credit losses
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		4,975,000
Average recorded investment in impaired loans		5,332,000
Interest income recognized on impaired loans		551,000
Outstanding principal balance		7,187,000
Related impairment reserve		40,000
Acquired loans evaluated individually for future credit losses | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		1,464,000
Average recorded investment in impaired loans		1,745,000
Interest income recognized on impaired loans		273,000
Outstanding principal balance		2,835,000
Related impairment reserve		33,000
Acquired loans evaluated individually for future credit losses | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		742,000
Average recorded investment in impaired loans		866,000
Interest income recognized on impaired loans		147,000
Outstanding principal balance		1,232,000
Related impairment reserve		7,000
Acquired loans evaluated individually for future credit losses | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		715,000
Average recorded investment in impaired loans		861,000
Interest income recognized on impaired loans		114,000
Outstanding principal balance		1,569,000
Related impairment reserve		25,000
Acquired loans evaluated individually for future credit losses | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		7,000
Average recorded investment in impaired loans		18,000
Interest income recognized on impaired loans		12,000
Outstanding principal balance		34,000
Related impairment reserve		1,000
Acquired loans evaluated individually for future credit losses | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		3,511,000
Average recorded investment in impaired loans		3,587,000
Interest income recognized on impaired loans		278,000
Outstanding principal balance		4,352,000
Related impairment reserve		7,000
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		3,433,000
Average recorded investment in impaired loans		3,509,000
Interest income recognized on impaired loans		273,000
Outstanding principal balance		4,268,000
Related impairment reserve		6,000
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Total impaired loans		78,000
Average recorded investment in impaired loans		78,000
Interest income recognized on impaired loans		5,000
Outstanding principal balance		84,000
Related impairment reserve		$ 1,000

Loans Receivable - Evaluation o

Loans Receivable - Evaluation of Impaired Loans by Portfolio Segment and by Class of Financing Receivable (Details) $ in Thousands	Dec. 31, 2019USD ($)
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	$ 8,739,372
Loans individually evaluated for impairment	69,302
Loans individually evaluated for impairment for which there is a related impairment reserve	57,999
Related impairment reserve	11,762
Loans individually evaluated for impairment for which there is no related reserve	11,303
Personal Banking
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	5,326,093
Loans individually evaluated for impairment	10,084
Loans individually evaluated for impairment for which there is a related impairment reserve	10,084
Related impairment reserve	956
Loans individually evaluated for impairment for which there is no related reserve	0
Personal Banking | Residential mortgage loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	2,860,026
Loans individually evaluated for impairment	8,101
Loans individually evaluated for impairment for which there is a related impairment reserve	8,101
Related impairment reserve	560
Loans individually evaluated for impairment for which there is no related reserve	0
Personal Banking | Home equity loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	1,340,944
Loans individually evaluated for impairment	1,974
Loans individually evaluated for impairment for which there is a related impairment reserve	1,974
Related impairment reserve	393
Loans individually evaluated for impairment for which there is no related reserve	0
Personal Banking | Consumer loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	1,125,123
Loans individually evaluated for impairment	9
Loans individually evaluated for impairment for which there is a related impairment reserve	9
Related impairment reserve	3
Loans individually evaluated for impairment for which there is no related reserve	0
Commercial Banking
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	3,413,279
Loans individually evaluated for impairment	59,218
Loans individually evaluated for impairment for which there is a related impairment reserve	47,915
Related impairment reserve	10,806
Loans individually evaluated for impairment for which there is no related reserve	11,303
Commercial Banking | Commercial real estate loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	2,718,855
Loans individually evaluated for impairment	35,535
Loans individually evaluated for impairment for which there is a related impairment reserve	29,578
Related impairment reserve	2,679
Loans individually evaluated for impairment for which there is no related reserve	5,957
Commercial Banking | Commercial loans
Evaluation of impaired loans by portfolio segment and by class of financing receivable
Loans collectively evaluated for impairment	694,424
Loans individually evaluated for impairment	23,683
Loans individually evaluated for impairment for which there is a related impairment reserve	18,337
Related impairment reserve	8,127
Loans individually evaluated for impairment for which there is no related reserve	$ 5,346

Loans Receivable - Roll Forward

Loans Receivable - Roll Forward of Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)contract	Mar. 31, 2019USD ($)contract	Dec. 31, 2019USD ($)
Number of contracts
Beginning balance | contract	176	195
Number of contracts new TDRs | contract	2	0
Number of re-modified TDRs | contract	2	0
Number of contracts net paydowns | contract	0	0
Ending balance | contract	171	195
Amount
Beginning TDR balance	$ 31,999	$ 33,608
New TDRs	2,518	0
Re-modified TDRs	2,076	0
Net paydowns	(2,841)	(796)
Ending TDR balance	33,352	32,812
Accruing TDRs	15,977	17,861
Non-accrual TDRs	$ 17,375	$ 14,951	$ 9,000
Number of TDR contracts with subsequent default | contract		0
Residential mortgage loans
Number of contracts
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	2	0
Amount
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ (330)	$ 0
Home equity loans
Number of contracts
Number of contracts charged off | contract	1	0
Number of contracts paid off | contract	0	0
Amount
Amount of contracts charged off	$ (10)	$ 0
Amount of contracts paid off	$ 0	$ 0
Vehicle loans
Number of contracts
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	0	0
Amount
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ 0	$ 0
Commercial real estate loans
Number of contracts
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	1	0
Amount
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ (26)	$ 0
Commercial real estate loans - owner occupied
Number of contracts
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	0	0
Amount
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ 0	$ 0
Commercial loans
Number of contracts
Number of contracts charged off | contract	0	0
Number of contracts paid off | contract	3	0
Amount
Amount of contracts charged off	$ 0	$ 0
Amount of contracts paid off	$ (34)	$ 0

Loans Receivable - Troubled Deb

Loans Receivable - Troubled Debt Restructuring (Including Re-Modified TDRs) by Portfolio Segment and by Class of Financing Receivable (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)contract	Mar. 31, 2019contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	4	0
Recorded investment at the time of modification	$ 4,596
Current recorded investment	4,594
Current allowance	$ 1,804
Number of TDR contracts with subsequent default | contract		0
Personal Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	1
Recorded investment at the time of modification	$ 19
Current recorded investment	18
Current allowance	$ 0
Personal Banking | Residential mortgage loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0
Recorded investment at the time of modification	$ 0
Current recorded investment	0
Current allowance	$ 0
Personal Banking | Home equity loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	1
Recorded investment at the time of modification	$ 19
Current recorded investment	18
Current allowance	$ 0
Personal Banking | Vehicle loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0
Recorded investment at the time of modification	$ 0
Current recorded investment	0
Current allowance	$ 0
Personal Banking | Consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0
Recorded investment at the time of modification	$ 0
Current recorded investment	0
Current allowance	$ 0
Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	3
Recorded investment at the time of modification	$ 4,577
Current recorded investment	4,576
Current allowance	$ 1,804
Commercial Banking | Commercial real estate loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	0
Recorded investment at the time of modification	$ 0
Current recorded investment	0
Current allowance	$ 0
Commercial Banking | Commercial real estate loans - owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	2
Recorded investment at the time of modification	$ 2,077
Current recorded investment	2,076
Current allowance	$ 176
Commercial Banking | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of contracts | contract	1
Recorded investment at the time of modification	$ 2,500
Current recorded investment	2,500
Current allowance	$ 1,628

Loans Receivable - Troubled D_2

Loans Receivable - Troubled Debt Restructurings by Type of Modification (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)contract	Mar. 31, 2019contract
Troubled debt restructurings
Number of contracts | contract	4	0
Troubled debt restructurings	$ 4,594
Number of TDR contracts with subsequent default | contract		0
Rate
Troubled debt restructurings
Troubled debt restructurings	0
Payment
Troubled debt restructurings
Troubled debt restructurings	0
Maturity date
Troubled debt restructurings
Troubled debt restructurings	2,094
Other
Troubled debt restructurings
Troubled debt restructurings	$ 2,500
Personal Banking
Troubled debt restructurings
Number of contracts | contract	1
Troubled debt restructurings	$ 18
Personal Banking | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Maturity date
Troubled debt restructurings
Troubled debt restructurings	18
Personal Banking | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Personal Banking | Residential mortgage loans
Troubled debt restructurings
Number of contracts | contract	0
Troubled debt restructurings	$ 0
Personal Banking | Residential mortgage loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Residential mortgage loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Residential mortgage loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Residential mortgage loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Personal Banking | Home equity loans
Troubled debt restructurings
Number of contracts | contract	1
Troubled debt restructurings	$ 18
Personal Banking | Home equity loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Home equity loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Home equity loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	18
Personal Banking | Home equity loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Personal Banking | Vehicle loans
Troubled debt restructurings
Number of contracts | contract	0
Troubled debt restructurings	$ 0
Personal Banking | Vehicle loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Vehicle loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Vehicle loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Vehicle loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Personal Banking | Consumer loans
Troubled debt restructurings
Number of contracts | contract	0
Troubled debt restructurings	$ 0
Personal Banking | Consumer loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Consumer loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Consumer loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0
Personal Banking | Consumer loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Commercial Banking
Troubled debt restructurings
Number of contracts | contract	3
Troubled debt restructurings	$ 4,576
Commercial Banking | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Maturity date
Troubled debt restructurings
Troubled debt restructurings	2,076
Commercial Banking | Other
Troubled debt restructurings
Troubled debt restructurings	$ 2,500
Commercial Banking | Commercial real estate loans
Troubled debt restructurings
Number of contracts | contract	0
Troubled debt restructurings	$ 0
Commercial Banking | Commercial real estate loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial real estate loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial real estate loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial real estate loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Commercial Banking | Commercial real estate loans - owner occupied
Troubled debt restructurings
Number of contracts | contract	2
Troubled debt restructurings	$ 2,076
Commercial Banking | Commercial real estate loans - owner occupied | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial real estate loans - owner occupied | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial real estate loans - owner occupied | Maturity date
Troubled debt restructurings
Troubled debt restructurings	2,076
Commercial Banking | Commercial real estate loans - owner occupied | Other
Troubled debt restructurings
Troubled debt restructurings	$ 0
Commercial Banking | Commercial loans
Troubled debt restructurings
Number of contracts | contract	1
Troubled debt restructurings	$ 2,500
Commercial Banking | Commercial loans | Rate
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial loans | Payment
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial loans | Maturity date
Troubled debt restructurings
Troubled debt restructurings	0
Commercial Banking | Commercial loans | Other
Troubled debt restructurings
Troubled debt restructurings	$ 2,500

Loans Receivable - Loan Delinqu

Loans Receivable - Loan Delinquencies (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loan payment delinquencies
Total delinquency	$ 145,202	$ 119,401
Current	8,691,672	8,689,273
Total loans	8,836,874	8,808,674
90 days or greater delinquent and accruing	31	147
30-59 days delinquent
Loan payment delinquencies
Total delinquency	73,004	48,081
60-89 days delinquent
Loan payment delinquencies
Total delinquency	9,576	19,493
90 days or greater delinquent
Loan payment delinquencies
Total delinquency	62,621	51,827
Personal Banking
Loan payment delinquencies
Total loans	5,382,126	5,336,177
90 days or greater delinquent and accruing	31
Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total loans	2,834,733	2,868,127
90 days or greater delinquent and accruing	0
Personal Banking | Home equity loans
Loan payment delinquencies
Total loans	1,360,654	1,342,918
90 days or greater delinquent and accruing	31
Personal Banking | Consumer finance loans
Loan payment delinquencies
Total loans	936,827
Personal Banking | Consumer loans
Loan payment delinquencies
Total loans	249,912	1,125,132
90 days or greater delinquent and accruing	0
Commercial Banking
Loan payment delinquencies
Total loans	3,454,748	3,472,497
90 days or greater delinquent and accruing	0
Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total loans	2,262,998	2,754,390
90 days or greater delinquent and accruing	0
Commercial Banking | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total loans	487,760
Commercial Banking | Commercial loans
Loan payment delinquencies
Total loans	703,990	718,107
90 days or greater delinquent and accruing	0
Originated
Loan payment delinquencies
Total delinquency		101,108
Current		7,885,949
Total loans		7,987,057
90 days or greater delinquent and accruing		0
Originated | 30-59 days delinquent
Loan payment delinquencies
Total delinquency		41,120
Originated | 60-89 days delinquent
Loan payment delinquencies
Total delinquency		18,613
Originated | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency		41,375
Originated | Personal Banking
Loan payment delinquencies
Total delinquency	79,045	64,521
Current	5,303,081	4,909,329
Total loans	5,382,126	4,973,850
90 days or greater delinquent and accruing	31	0
Originated | Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total delinquency	46,382	37,099
Current	2,788,351	2,748,090
Total loans	2,834,733	2,785,189
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | Home equity loans
Loan payment delinquencies
Total delinquency	15,706	11,788
Current	1,344,948	1,088,136
Total loans	1,360,654	1,100,023
90 days or greater delinquent and accruing	31	0
Originated | Personal Banking | Consumer finance loans
Loan payment delinquencies
Total delinquency	11,937
Current	924,890
Total loans	936,827
90 days or greater delinquent and accruing	0
Originated | Personal Banking | Consumer loans
Loan payment delinquencies
Total delinquency	5,020	15,634
Current	244,892	1,073,103
Total loans	249,912	1,088,638
90 days or greater delinquent and accruing	0	0
Originated | Personal Banking | 30-59 days delinquent
Loan payment delinquencies
Total delinquency	52,533	34,535
Originated | Personal Banking | 30-59 days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	35,322	20,447
Originated | Personal Banking | 30-59 days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	7,064	5,119
Originated | Personal Banking | 30-59 days delinquent | Consumer finance loans
Loan payment delinquencies
Total delinquency	6,896
Originated | Personal Banking | 30-59 days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	3,251	8,969
Originated | Personal Banking | 60-89 days delinquent
Loan payment delinquencies
Total delinquency	6,267	10,866
Originated | Personal Banking | 60-89 days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	522	5,572
Originated | Personal Banking | 60-89 days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	2,682	2,096
Originated | Personal Banking | 60-89 days delinquent | Consumer finance loans
Loan payment delinquencies
Total delinquency	2,254
Originated | Personal Banking | 60-89 days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	809	3,198
Originated | Personal Banking | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency	20,245	19,120
Originated | Personal Banking | 90 days or greater delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency	10,538	11,080
Originated | Personal Banking | 90 days or greater delinquent | Home equity loans
Loan payment delinquencies
Total delinquency	5,960	4,573
Originated | Personal Banking | 90 days or greater delinquent | Consumer finance loans
Loan payment delinquencies
Total delinquency	2,787
Originated | Personal Banking | 90 days or greater delinquent | Consumer loans
Loan payment delinquencies
Total delinquency	960	3,467
Originated | Commercial Banking
Loan payment delinquencies
Total delinquency	66,157	36,587
Current	3,388,591	2,976,620
Total loans	3,454,748	3,013,207
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total delinquency	31,175	24,944
Current	2,231,823	2,324,104
Total loans	2,262,998	2,349,048
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total delinquency	10,259
Current	477,501
Total loans	487,760
Originated | Commercial Banking | Commercial loans
Loan payment delinquencies
Total delinquency	24,723	11,643
Current	679,267	652,516
Total loans	703,990	664,159
90 days or greater delinquent and accruing	0	0
Originated | Commercial Banking | 30-59 days delinquent
Loan payment delinquencies
Total delinquency	20,471	6,585
Originated | Commercial Banking | 30-59 days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	10,829	5,598
Originated | Commercial Banking | 30-59 days delinquent | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total delinquency	2,094
Originated | Commercial Banking | 30-59 days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	7,548	987
Originated | Commercial Banking | 60-89 days delinquent
Loan payment delinquencies
Total delinquency	3,309	7,747
Originated | Commercial Banking | 60-89 days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	2,426	1,387
Originated | Commercial Banking | 60-89 days delinquent | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total delinquency	568
Originated | Commercial Banking | 60-89 days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	315	6,360
Originated | Commercial Banking | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency	42,376	22,255
Originated | Commercial Banking | 90 days or greater delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency	17,919	17,959
Originated | Commercial Banking | 90 days or greater delinquent | Commercial real estate loans - owner occupied
Loan payment delinquencies
Total delinquency	7,597
Originated | Commercial Banking | 90 days or greater delinquent | Commercial loans
Loan payment delinquencies
Total delinquency	$ 16,860	4,296
Acquired
Loan payment delinquencies
Total delinquency		18,293
Current		803,324
Total loans		821,617
90 days or greater delinquent and accruing		147
Acquired | 30-59 days delinquent
Loan payment delinquencies
Total delinquency		6,961
Acquired | 60-89 days delinquent
Loan payment delinquencies
Total delinquency		880
Acquired | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency		10,452
Acquired | Personal Banking
Loan payment delinquencies
Total delinquency		7,926
Current		354,401
Total loans		362,327
90 days or greater delinquent and accruing		147
Acquired | Personal Banking | Residential mortgage loans
Loan payment delinquencies
Total delinquency		4,665
Current		78,273
Total loans		82,938
90 days or greater delinquent and accruing		93
Acquired | Personal Banking | Home equity loans
Loan payment delinquencies
Total delinquency		2,774
Current		240,630
Total loans		243,404
90 days or greater delinquent and accruing		53
Acquired | Personal Banking | Consumer loans
Loan payment delinquencies
Total delinquency		487
Current		35,498
Total loans		35,985
90 days or greater delinquent and accruing		1
Acquired | Personal Banking | 30-59 days delinquent
Loan payment delinquencies
Total delinquency		4,438
Acquired | Personal Banking | 30-59 days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency		2,849
Acquired | Personal Banking | 30-59 days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency		1,350
Acquired | Personal Banking | 30-59 days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency		239
Acquired | Personal Banking | 60-89 days delinquent
Loan payment delinquencies
Total delinquency		534
Acquired | Personal Banking | 60-89 days delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency		121
Acquired | Personal Banking | 60-89 days delinquent | Home equity loans
Loan payment delinquencies
Total delinquency		309
Acquired | Personal Banking | 60-89 days delinquent | Consumer loans
Loan payment delinquencies
Total delinquency		104
Acquired | Personal Banking | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency		2,954
Acquired | Personal Banking | 90 days or greater delinquent | Residential mortgage loans
Loan payment delinquencies
Total delinquency		1,695
Acquired | Personal Banking | 90 days or greater delinquent | Home equity loans
Loan payment delinquencies
Total delinquency		1,115
Acquired | Personal Banking | 90 days or greater delinquent | Consumer loans
Loan payment delinquencies
Total delinquency		144
Acquired | Commercial Banking
Loan payment delinquencies
Total delinquency		10,367
Current		448,923
Total loans		459,290
90 days or greater delinquent and accruing		0
Acquired | Commercial Banking | Commercial real estate loans
Loan payment delinquencies
Total delinquency		9,681
Current		395,661
Total loans		405,342
90 days or greater delinquent and accruing		0
Acquired | Commercial Banking | Commercial loans
Loan payment delinquencies
Total delinquency		686
Current		53,262
Total loans		53,948
90 days or greater delinquent and accruing		0
Acquired | Commercial Banking | 30-59 days delinquent
Loan payment delinquencies
Total delinquency		2,523
Acquired | Commercial Banking | 30-59 days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency		2,323
Acquired | Commercial Banking | 30-59 days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency		200
Acquired | Commercial Banking | 60-89 days delinquent
Loan payment delinquencies
Total delinquency		346
Acquired | Commercial Banking | 60-89 days delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency		303
Acquired | Commercial Banking | 60-89 days delinquent | Commercial loans
Loan payment delinquencies
Total delinquency		43
Acquired | Commercial Banking | 90 days or greater delinquent
Loan payment delinquencies
Total delinquency		7,498
Acquired | Commercial Banking | 90 days or greater delinquent | Commercial real estate loans
Loan payment delinquencies
Total delinquency		7,055
Acquired | Commercial Banking | 90 days or greater delinquent | Commercial loans
Loan payment delinquencies
Total delinquency		$ 443

Loans Receivable - Credit Quali

Loans Receivable - Credit Quality Indicators (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Credit quality indicators
Total loans receivable	$ 8,836,874,000	$ 8,808,674,000
YTD March 31, 2020	432,572,000
2019	1,700,079,000
2018	1,118,154,000
2017	972,987,000
2016	697,742,000
Prior	2,731,873,000
Revolving Loans	1,104,776,000
Revolving loans converted to term loans	78,688,000
Total loans receivable, gross	8,836,874,000	8,808,674,000
Revolving loans converted to term loans during the period	4,700,000
Personal Banking
Credit quality indicators
Total loans receivable	5,382,126,000	5,336,177,000
YTD March 31, 2020	338,694,000
2019	1,223,862,000
2018	677,189,000
2017	492,505,000
2016	371,039,000
Prior	1,710,679,000
Revolving Loans	527,152,000
Revolving loans converted to term loans	41,005,000
Total loans receivable, gross	5,382,126,000	5,336,177,000
Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans receivable	2,834,733,000	2,868,127,000
Total loans receivable, gross	2,834,733,000	2,868,127,000
Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Total loans receivable, gross	2,815,671,000
Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Total loans receivable, gross	19,062,000
Personal Banking | Home equity loans
Credit quality indicators
Total loans receivable	1,360,654,000	1,342,918,000
Total loans receivable, gross	1,360,654,000	1,343,427,000
Personal Banking | Home equity loans | Pass
Credit quality indicators
YTD March 31, 2020	62,841,000
2019	221,783,000
2018	111,767,000
2017	103,107,000
2016	97,444,000
Prior	262,224,000
Revolving Loans	456,600,000
Revolving loans converted to term loans	36,305,000
Total loans receivable, gross	1,352,071,000
Personal Banking | Home equity loans | Substandard
Credit quality indicators
YTD March 31, 2020	0
2019	25,000
2018	112,000
2017	185,000
2016	764,000
Prior	4,300,000
Revolving Loans	1,532,000
Revolving loans converted to term loans	1,666,000
Total loans receivable, gross	8,583,000
Personal Banking | Vehicle loans
Credit quality indicators
Total loans receivable, gross	936,827,000
Personal Banking | Vehicle loans | Pass
Credit quality indicators
YTD March 31, 2020	36,919,000
2019	80,750,000
2018	246,493,000
2017	428,865,000
2016	126,861,000
Prior	14,147,000
Revolving loans converted to term loans	0
Total loans receivable, gross	934,035,000
Personal Banking | Vehicle loans | Substandard
Credit quality indicators
YTD March 31, 2020	318,000
2019	723,000
2018	702,000
2017	783,000
2016	0
Prior	266,000
Revolving loans converted to term loans	0
Total loans receivable, gross	2,792,000
Personal Banking | Consumer loans
Credit quality indicators
Total loans receivable	249,912,000	1,125,132,000
YTD March 31, 2020	25,967,000
2019	96,833,000
2018	29,952,000
2017	13,948,000
2016	5,571,000
Prior	5,587,000
Revolving Loans	69,020,000
Revolving loans converted to term loans	3,034,000
Total loans receivable, gross	249,912,000	263,431,000
Personal Banking | Consumer loans | Pass
Credit quality indicators
Total loans receivable, gross	248,951,000
Personal Banking | Consumer loans | Substandard
Credit quality indicators
YTD March 31, 2020	0
2019	252,000
2018	61,000
2017	79,000
2016	19,000
Prior	28,000
Revolving Loans	430,000
Revolving loans converted to term loans	92,000
Total loans receivable, gross	961,000
Commercial Banking
Credit quality indicators
Total loans receivable	3,454,748,000	3,472,497,000
YTD March 31, 2020	93,878,000
2019	476,217,000
2018	440,965,000
2017	480,482,000
2016	326,703,000
Prior	1,021,194,000
Revolving Loans	577,624,000
Revolving loans converted to term loans	37,683,000
Total loans receivable, gross	3,454,748,000	3,472,497,000
Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans receivable	2,262,998,000	2,754,390,000
Total loans receivable, gross	2,262,998,000	2,228,109,000
Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Total loans receivable, gross	2,113,142,000
Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
YTD March 31, 2020	105,000
2019	2,063,000
2018	7,209,000
2017	35,698,000
2016	6,297,000
Prior	8,888,000
Revolving Loans	4,989,000
Revolving loans converted to term loans	801,000
Total loans receivable, gross	66,051,000
Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
YTD March 31, 2020	349,000
2019	336,000
2018	3,696,000
2017	11,695,000
2016	6,629,000
Prior	52,992,000
Revolving Loans	4,091,000
Revolving loans converted to term loans	4,017,000
Total loans receivable, gross	83,805,000
Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
Total loans receivable, gross	0
Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
Total loans receivable, gross	0
Commercial Banking | Commercial real estate loans - owner occupied
Credit quality indicators
Total loans receivable	487,760,000
YTD March 31, 2020	2,615,000
2019	69,535,000
2018	98,533,000
2017	94,686,000
2016	55,001,000
Prior	148,336,000
Revolving Loans	12,300,000
Revolving loans converted to term loans	6,754,000
Total loans receivable, gross	487,760,000	526,281,000
Commercial Banking | Commercial real estate loans - owner occupied | Pass
Credit quality indicators
YTD March 31, 2020	2,615,000
2019	65,489,000
2018	93,389,000
2017	79,888,000
2016	45,873,000
Prior	121,067,000
Revolving Loans	11,180,000
Revolving loans converted to term loans	3,440,000
Total loans receivable, gross	422,940,000
Commercial Banking | Commercial real estate loans - owner occupied | Special mention
Credit quality indicators
YTD March 31, 2020	0
2019	1,337,000
2018	1,230,000
2017	2,682,000
2016	1,417,000
Prior	3,535,000
Revolving Loans	26,000
Revolving loans converted to term loans	30,000
Total loans receivable, gross	10,258,000
Commercial Banking | Commercial real estate loans - owner occupied | Substandard
Credit quality indicators
YTD March 31, 2020	0
2019	2,709,000
2018	3,914,000
2017	12,117,000
2016	7,711,000
Prior	23,734,000
Revolving Loans	1,094,000
Revolving loans converted to term loans	3,284,000
Total loans receivable, gross	54,562,000
Commercial Banking | Commercial real estate loans - owner occupied | Doubtful
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Total loans receivable, gross	0
Commercial Banking | Commercial real estate loans - owner occupied | Loss
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Total loans receivable, gross	0
Commercial Banking | Commercial loans
Credit quality indicators
Total loans receivable	703,990,000	718,107,000
YTD March 31, 2020	18,583,000
2019	100,711,000
2018	70,759,000
2017	61,721,000
2016	61,446,000
Prior	43,089,000
Revolving Loans	327,521,000
Revolving loans converted to term loans	20,159,000
Total loans receivable, gross	703,990,000	718,107,000
Commercial Banking | Commercial loans | Pass
Credit quality indicators
YTD March 31, 2020	18,210,000
2019	93,726,000
2018	61,621,000
2017	59,597,000
2016	53,671,000
Prior	39,638,000
Revolving Loans	273,335,000
Revolving loans converted to term loans	9,735,000
Total loans receivable, gross	609,533,000
Commercial Banking | Commercial loans | Special mention
Credit quality indicators
YTD March 31, 2020	0
2019	5,811,000
2018	1,922,000
2017	551,000
2016	6,981,000
Prior	717,000
Revolving Loans	26,634,000
Revolving loans converted to term loans	418,000
Total loans receivable, gross	43,034,000
Commercial Banking | Commercial loans | Substandard
Credit quality indicators
YTD March 31, 2020	373,000
2019	1,174,000
2018	7,216,000
2017	1,573,000
2016	795,000
Prior	2,734,000
Revolving Loans	27,552,000
Revolving loans converted to term loans	10,006,000
Total loans receivable, gross	51,423,000
Commercial Banking | Commercial loans | Doubtful
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Total loans receivable, gross	0
Commercial Banking | Commercial loans | Loss
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Total loans receivable, gross	0
Originated
Credit quality indicators
Total loans receivable		7,987,057,000
Total loans receivable, gross	8,080,528,000	7,987,057,000
Originated | Personal Banking
Credit quality indicators
Total loans receivable	5,382,126,000	4,973,850,000
Total loans receivable, gross	5,060,438,000	4,973,850,000
Originated | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans receivable	2,834,733,000	2,785,189,000
YTD March 31, 2020	123,025,000
2019	475,573,000
2018	288,163,000
2017	293,792,000
2016	230,024,000
Prior	1,424,155,000
Revolving Loans	0
Revolving loans converted to term loans	0
Total loans receivable, gross	2,758,695,000	2,785,189,000
Originated | Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
YTD March 31, 2020	123,025,000
2019	475,573,000
2018	288,056,000
2017	293,228,000
2016	229,808,000
Prior	1,405,981,000
Revolving Loans	0
Revolving loans converted to term loans	0
Originated | Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	108,000
2017	564,000
2016	216,000
Prior	18,174,000
Revolving Loans	0
Revolving loans converted to term loans	0
Originated | Personal Banking | Home equity loans
Credit quality indicators
Total loans receivable	1,360,654,000	1,100,023,000
YTD March 31, 2020	62,841,000
2019	221,808,000
2018	111,879,000
2017	103,292,000
2016	98,207,000
Prior	266,524,000
Revolving Loans	458,132,000
Revolving loans converted to term loans	37,971,000
Total loans receivable, gross	1,129,370,000	1,100,023,000
Originated | Personal Banking | Vehicle loans
Credit quality indicators
YTD March 31, 2020	37,237,000
2019	81,473,000
2018	247,195,000
2017	429,648,000
2016	126,861,000
Prior	14,413,000
Revolving loans converted to term loans	0
Total loans receivable, gross	929,204,000
Originated | Personal Banking | Consumer loans
Credit quality indicators
Total loans receivable	249,912,000	1,088,638,000
Total loans receivable, gross	243,169,000	237,834,000
Originated | Personal Banking | Consumer loans | Pass
Credit quality indicators
YTD March 31, 2020	25,967,000
2019	96,581,000
2018	29,891,000
2017	13,869,000
2016	5,552,000
Prior	5,559,000
Revolving Loans	68,590,000
Revolving loans converted to term loans	2,942,000
Originated | Commercial Banking
Credit quality indicators
Total loans receivable	3,454,748,000	3,013,207,000
Total loans receivable, gross	3,020,090,000	3,013,207,000
Originated | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans receivable	2,262,998,000	2,349,048,000
Total loans receivable, gross	1,953,458,000	1,915,949,000
Originated | Commercial Banking | Commercial real estate loans - owner occupied
Credit quality indicators
Total loans receivable	487,760,000
Total loans receivable, gross	416,283,000	433,099,000
Originated | Commercial Banking | Commercial loans
Credit quality indicators
Total loans receivable	703,990,000	664,159,000
Total loans receivable, gross	650,349,000	664,159,000
Acquired
Credit quality indicators
Total loans receivable		821,617,000
Total loans receivable, gross	756,346,000	821,617,000
Acquired | Personal Banking
Credit quality indicators
Total loans receivable		362,327,000
Total loans receivable, gross	321,688,000	362,327,000
Acquired | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans receivable		82,938,000
Total loans receivable, gross	76,038,000	82,938,000
Acquired | Personal Banking | Home equity loans
Credit quality indicators
Total loans receivable		243,404,000
Total loans receivable, gross	231,284,000	243,404,000
Acquired | Personal Banking | Consumer loans
Credit quality indicators
Total loans receivable		35,985,000
Total loans receivable, gross	6,743,000	25,597,000
Acquired | Commercial Banking
Credit quality indicators
Total loans receivable		459,290,000
Total loans receivable, gross	434,658,000	459,290,000
Acquired | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans receivable		405,342,000
YTD March 31, 2020	72,680,000
2019	305,971,000
2018	271,674,000
2017	324,074,000
2016	210,256,000
Prior	829,769,000
Revolving Loans	237,803,000
Revolving loans converted to term loans	10,770,000
Total loans receivable, gross	309,540,000	312,160,000
Acquired | Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
YTD March 31, 2020	72,226,000
2019	303,571,000
2018	260,769,000
2017	276,681,000
2016	197,330,000
Prior	767,889,000
Revolving Loans	228,723,000
Revolving loans converted to term loans	5,952,000
Acquired | Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Acquired | Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
YTD March 31, 2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Revolving loans converted to term loans	0
Acquired | Commercial Banking | Commercial real estate loans - owner occupied
Credit quality indicators
Total loans receivable, gross	71,477,000	93,182,000
Acquired | Commercial Banking | Commercial loans
Credit quality indicators
Total loans receivable		53,948,000
Total loans receivable, gross	53,641,000	53,948,000
Minimum | Special Mention And Substandard
Credit quality indicators
Total loans receivable	$ 1,000,000
Previously Reported
Credit quality indicators
Total loans receivable, gross		8,808,674,000
Previously Reported | Pass
Credit quality indicators
Total loans receivable, gross		8,471,224,000
Previously Reported | Special mention
Credit quality indicators
Total loans receivable, gross		122,950,000
Previously Reported | Substandard
Credit quality indicators
Total loans receivable, gross		214,500,000
Previously Reported | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated
Credit quality indicators
Total loans receivable, gross		7,987,057,000
Previously Reported | Originated | Pass
Credit quality indicators
Total loans receivable, gross		7,715,665,000
Previously Reported | Originated | Special mention
Credit quality indicators
Total loans receivable, gross		112,679,000
Previously Reported | Originated | Substandard
Credit quality indicators
Total loans receivable, gross		158,713,000
Previously Reported | Originated | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking
Credit quality indicators
Total loans receivable, gross		4,973,850,000
Previously Reported | Originated | Personal Banking | Pass
Credit quality indicators
Total loans receivable, gross		4,955,831,000
Previously Reported | Originated | Personal Banking | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Substandard
Credit quality indicators
Total loans receivable, gross		18,019,000
Previously Reported | Originated | Personal Banking | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans receivable, gross		2,785,189,000
Previously Reported | Originated | Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Total loans receivable, gross		2,776,971,000
Previously Reported | Originated | Personal Banking | Residential mortgage loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Total loans receivable, gross		8,218,000
Previously Reported | Originated | Personal Banking | Residential mortgage loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Residential mortgage loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Home equity loans
Credit quality indicators
Total loans receivable, gross		1,099,514,000
Previously Reported | Originated | Personal Banking | Home equity loans | Pass
Credit quality indicators
Total loans receivable, gross		1,093,874,000
Previously Reported | Originated | Personal Banking | Home equity loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Home equity loans | Substandard
Credit quality indicators
Total loans receivable, gross		5,640,000
Previously Reported | Originated | Personal Banking | Home equity loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Home equity loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Consumer loans
Credit quality indicators
Total loans receivable, gross		1,089,147,000
Previously Reported | Originated | Personal Banking | Consumer loans | Pass
Credit quality indicators
Total loans receivable, gross		1,084,986,000
Previously Reported | Originated | Personal Banking | Consumer loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Consumer loans | Substandard
Credit quality indicators
Total loans receivable, gross		4,161,000
Previously Reported | Originated | Personal Banking | Consumer loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Personal Banking | Consumer loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking
Credit quality indicators
Total loans receivable, gross		3,013,207,000
Previously Reported | Originated | Commercial Banking | Pass
Credit quality indicators
Total loans receivable, gross		2,759,834,000
Previously Reported | Originated | Commercial Banking | Special mention
Credit quality indicators
Total loans receivable, gross		112,679,000
Previously Reported | Originated | Commercial Banking | Substandard
Credit quality indicators
Total loans receivable, gross		140,694,000
Previously Reported | Originated | Commercial Banking | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans receivable, gross		2,349,048,000
Previously Reported | Originated | Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Total loans receivable, gross		2,188,823,000
Previously Reported | Originated | Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
Total loans receivable, gross		70,327,000
Previously Reported | Originated | Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
Total loans receivable, gross		89,898,000
Previously Reported | Originated | Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking | Commercial loans
Credit quality indicators
Total loans receivable, gross		664,159,000
Previously Reported | Originated | Commercial Banking | Commercial loans | Pass
Credit quality indicators
Total loans receivable, gross		571,011,000
Previously Reported | Originated | Commercial Banking | Commercial loans | Special mention
Credit quality indicators
Total loans receivable, gross		42,352,000
Previously Reported | Originated | Commercial Banking | Commercial loans | Substandard
Credit quality indicators
Total loans receivable, gross		50,796,000
Previously Reported | Originated | Commercial Banking | Commercial loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Originated | Commercial Banking | Commercial loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired
Credit quality indicators
Total loans receivable, gross		821,617,000
Previously Reported | Acquired | Pass
Credit quality indicators
Total loans receivable, gross		755,559,000
Previously Reported | Acquired | Special mention
Credit quality indicators
Total loans receivable, gross		10,271,000
Previously Reported | Acquired | Substandard
Credit quality indicators
Total loans receivable, gross		55,787,000
Previously Reported | Acquired | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking
Credit quality indicators
Total loans receivable, gross		362,327,000
Previously Reported | Acquired | Personal Banking | Pass
Credit quality indicators
Total loans receivable, gross		359,594,000
Previously Reported | Acquired | Personal Banking | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Substandard
Credit quality indicators
Total loans receivable, gross		2,733,000
Previously Reported | Acquired | Personal Banking | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Residential mortgage loans
Credit quality indicators
Total loans receivable, gross		82,938,000
Previously Reported | Acquired | Personal Banking | Residential mortgage loans | Pass
Credit quality indicators
Total loans receivable, gross		81,611,000
Previously Reported | Acquired | Personal Banking | Residential mortgage loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Residential mortgage loans | Substandard
Credit quality indicators
Total loans receivable, gross		1,327,000
Previously Reported | Acquired | Personal Banking | Residential mortgage loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Residential mortgage loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Home equity loans
Credit quality indicators
Total loans receivable, gross		243,404,000
Previously Reported | Acquired | Personal Banking | Home equity loans | Pass
Credit quality indicators
Total loans receivable, gross		242,237,000
Previously Reported | Acquired | Personal Banking | Home equity loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Home equity loans | Substandard
Credit quality indicators
Total loans receivable, gross		1,167,000
Previously Reported | Acquired | Personal Banking | Home equity loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Home equity loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Consumer loans
Credit quality indicators
Total loans receivable, gross		35,985,000
Previously Reported | Acquired | Personal Banking | Consumer loans | Pass
Credit quality indicators
Total loans receivable, gross		35,746,000
Previously Reported | Acquired | Personal Banking | Consumer loans | Special mention
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Consumer loans | Substandard
Credit quality indicators
Total loans receivable, gross		239,000
Previously Reported | Acquired | Personal Banking | Consumer loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Personal Banking | Consumer loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking
Credit quality indicators
Total loans receivable, gross		459,290,000
Previously Reported | Acquired | Commercial Banking | Pass
Credit quality indicators
Total loans receivable, gross		395,965,000
Previously Reported | Acquired | Commercial Banking | Special mention
Credit quality indicators
Total loans receivable, gross		10,271,000
Previously Reported | Acquired | Commercial Banking | Substandard
Credit quality indicators
Total loans receivable, gross		53,054,000
Previously Reported | Acquired | Commercial Banking | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans
Credit quality indicators
Total loans receivable, gross		405,342,000
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans | Pass
Credit quality indicators
Total loans receivable, gross		349,993,000
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans | Special mention
Credit quality indicators
Total loans receivable, gross		10,243,000
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans | Substandard
Credit quality indicators
Total loans receivable, gross		45,106,000
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking | Commercial real estate loans | Loss
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking | Commercial loans
Credit quality indicators
Total loans receivable, gross		53,948,000
Previously Reported | Acquired | Commercial Banking | Commercial loans | Pass
Credit quality indicators
Total loans receivable, gross		45,972,000
Previously Reported | Acquired | Commercial Banking | Commercial loans | Special mention
Credit quality indicators
Total loans receivable, gross		28,000
Previously Reported | Acquired | Commercial Banking | Commercial loans | Substandard
Credit quality indicators
Total loans receivable, gross		7,948,000
Previously Reported | Acquired | Commercial Banking | Commercial loans | Doubtful
Credit quality indicators
Total loans receivable, gross		0
Previously Reported | Acquired | Commercial Banking | Commercial loans | Loss
Credit quality indicators
Total loans receivable, gross		$ 0

Loans Receivable - Outstanding

Loans Receivable - Outstanding Principal Balance and Related Carrying Value of Acquired Loans (Details) $ in Thousands	Dec. 31, 2019USD ($)
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	$ 833,599
Carrying value	821,617
Acquired loans evaluated individually for future credit losses
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	7,187
Carrying value	4,975
Acquired loans evaluated collectively for future credit losses
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding principal balance	826,412
Carrying value	$ 816,642

Loans Receivable - Changes in_2

Loans Receivable - Changes in the Accretable Discount (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Changes in accretable yield
Beginning balance	$ 755
Accretion	(551)
Net reclassification from nonaccretable yield	966
Ending balance	$ 1,170

Loans Receivable - Compositio_2

Loans Receivable - Composition of Acquired Impaired Loans by Portfolio Segment and by Class of Financing Receivable (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		$ 105,993
Average recorded investment in impaired loans		88,643
Interest income recognized	$ 217	3,070
Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		33,918
Average recorded investment in impaired loans		32,180
Interest income recognized		1,235
Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		21,293
Average recorded investment in impaired loans		19,767
Interest income recognized		688
Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		8,399
Average recorded investment in impaired loans		8,571
Interest income recognized		368
Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		4,226
Average recorded investment in impaired loans		3,842
Interest income recognized		179
Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		72,075
Average recorded investment in impaired loans		56,463
Interest income recognized		1,835
Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		46,126
Average recorded investment in impaired loans		46,284
Interest income recognized		1,490
Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		25,949
Average recorded investment in impaired loans		10,179
Interest income recognized		345
Acquired loans evaluated individually for future credit losses
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		4,975
Outstanding principal balance		7,187
Related impairment reserve		40
Average recorded investment in impaired loans		5,332
Interest income recognized		551
Acquired loans evaluated individually for future credit losses | Personal Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		1,464
Outstanding principal balance		2,835
Related impairment reserve		33
Average recorded investment in impaired loans		1,745
Interest income recognized		273
Acquired loans evaluated individually for future credit losses | Personal Banking | Residential mortgage loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		742
Outstanding principal balance		1,232
Related impairment reserve		7
Average recorded investment in impaired loans		866
Interest income recognized		147
Acquired loans evaluated individually for future credit losses | Personal Banking | Home equity loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		715
Outstanding principal balance		1,569
Related impairment reserve		25
Average recorded investment in impaired loans		861
Interest income recognized		114
Acquired loans evaluated individually for future credit losses | Personal Banking | Consumer loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		7
Outstanding principal balance		34
Related impairment reserve		1
Average recorded investment in impaired loans		18
Interest income recognized		12
Acquired loans evaluated individually for future credit losses | Commercial Banking
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		3,511
Outstanding principal balance		4,352
Related impairment reserve		7
Average recorded investment in impaired loans		3,587
Interest income recognized		278
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial real estate loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		3,433
Outstanding principal balance		4,268
Related impairment reserve		6
Average recorded investment in impaired loans		3,509
Interest income recognized		273
Acquired loans evaluated individually for future credit losses | Commercial Banking | Commercial loans
Composition of impaired loans by portfolio segment and by class of financing receivable
Carrying value		78
Outstanding principal balance		84
Related impairment reserve		1
Average recorded investment in impaired loans		78
Interest income recognized		$ 5

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Amortizable intangible assets:
Intangible asset - net	$ 21,425		$ 23,076
Amortization expense	1,651	$ 1,447
Estimated amortization expense
For the year ending December 31, 2020	6,237
For the year ending December 31, 2021	5,058
For the year ending December 31, 2022	3,976
For the year ending December 31, 2023	3,016
For the year ending December 31, 2024	2,249
For the year ending December 31, 2025	1,510
Core Deposits
Amortizable intangible assets:
Intangible asset - gross	71,183		71,183
Less: accumulated amortization	(52,357)		(50,934)
Intangible asset - net	18,826		20,249
Customer and Contract
Amortizable intangible assets:
Intangible asset - gross	12,775		12,775
Less: accumulated amortization	(10,176)		(9,948)
Intangible asset - net	$ 2,599		$ 2,827

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 346,103	$ 307,420
Goodwill acquired	0	38,683
Balance at the end of the period	$ 346,103	$ 346,103

Borrowed Funds - Schedule of Bo

Borrowed Funds - Schedule of Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Borrowed funds	$ 191,599	$ 246,336
Term notes payable to FHLB of Pittsburgh
Debt Instrument [Line Items]
Securities sold under agreements to repurchase	$ 100,000
Average rate	0.74%
Borrowed funds	$ 100,000
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under agreements to repurchase	$ 91,599	$ 92,700
Average rate	0.30%

Borrowed Funds - Narrative (Det

Borrowed Funds - Narrative (Details)	Dec. 15, 2005USD ($)$ / sharesshares	Dec. 05, 2005USD ($)$ / sharesshares	Mar. 31, 2020USD ($)advance$ / sharesshares	Dec. 31, 2019USD ($)	Mar. 07, 2019trust
Debt Instrument [Line Items]
Borrowed funds			$ 191,599,000	$ 246,336,000
Number of statutory business trusts owned | trust					5
Junior subordinated debentures			$ 121,813,000	121,800,000
Trust preferred investments
Debt Instrument [Line Items]
Maximum period for which interest payment on the subordinated debentures can be deferred			5 years
Interest deferral			$ 0
Trust preferred investments | Northwest Bancorp Capital Trust III
Debt Instrument [Line Items]
Cumulative trust preferred securities issued (in shares) | shares		50,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares		$ 1,000
Total value of cumulative trust preferred securities issued		$ 50,000,000
Junior subordinated debentures			$ 51,547,000
Trust preferred investments | Northwest Bancorp Capital Trust III | LIBOR
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)		1.38%
Effective rate (as a percent)			2.75%
Trust preferred investments | Northwest Bancorp Statutory Trust IV
Debt Instrument [Line Items]
Cumulative trust preferred securities issued (in shares) | shares	50,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares	$ 1,000
Total value of cumulative trust preferred securities issued	$ 50,000,000
Junior subordinated debentures			$ 51,547,000
Trust preferred investments | Northwest Bancorp Statutory Trust IV | LIBOR
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)	1.38%
Effective rate (as a percent)			2.12%
Trust preferred investments | Union National Capital Trust I
Debt Instrument [Line Items]
Cumulative trust preferred securities issued (in shares) | shares			8,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares			$ 1,000
Total value of cumulative trust preferred securities issued			$ 8,000,000
Trust preferred investments | Union National Capital Trust I | LIBOR
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)			2.85%
Effective rate (as a percent)			4.62%
Trust preferred investments | Union National Capital Trust II
Debt Instrument [Line Items]
Cumulative trust preferred securities issued (in shares) | shares			3,000
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares			$ 1,000
Total value of cumulative trust preferred securities issued			$ 3,000,000
Trust preferred investments | Union National Capital Trust II | LIBOR
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)			2.00%
Effective rate (as a percent)			3.68%
Interest rate swaps | LNB Trust II
Debt Instrument [Line Items]
Cumulative trust preferred securities issued (in shares) | shares			7,875
Cumulative trust preferred securities issued, liquidation value per preferred security (in dollars per security) | $ / shares			$ 1,000
Total value of cumulative trust preferred securities issued			$ 7,875,000
Junior subordinated debentures			$ 8,119,000
Interest rate swaps | LNB Trust II | LIBOR
Debt Instrument [Line Items]
Spread on variable rate basis (as a percent)			1.48%
Effective rate (as a percent)			2.22%
Interest rate swaps | Union National Capital Trust I
Debt Instrument [Line Items]
Junior subordinated debentures			$ 8,248,000
Interest rate swaps | Union National Capital Trust II
Debt Instrument [Line Items]
Junior subordinated debentures			3,093,000
Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity			250,000,000
Revolving line of credit			0	153,600,000
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under agreements to repurchase			91,599,000	$ 92,700,000
Term notes payable to FHLB of Pittsburgh
Debt Instrument [Line Items]
Borrowed funds			$ 100,000,000
Number of fixed rate advances | advance			4
Term notes payable to FHLB of Pittsburgh | Fixed Rate Advance Due June 16, 2020
Debt Instrument [Line Items]
Borrowed funds			$ 30,000,000
Fixed rate			0.91%
Term notes payable to FHLB of Pittsburgh | Fixed Rate Advance Due June 22, 2020
Debt Instrument [Line Items]
Borrowed funds			$ 25,000,000
Fixed rate			0.70%
Term notes payable to FHLB of Pittsburgh | Fixed Rate Advance Due June 22, 2020
Debt Instrument [Line Items]
Borrowed funds			$ 25,000,000
Fixed rate			0.70%
Term notes payable to FHLB of Pittsburgh | Fixed Rate Advance Due June 26, 2020
Debt Instrument [Line Items]
Borrowed funds			$ 20,000,000
Fixed rate			0.59%

Guarantees (Details)

Guarantees (Details) - Letter of Credit $ in Thousands	Mar. 31, 2020USD ($)
Guarantor Obligations [Line Items]
Maximum potential amount of future payments	$ 37,900
Maximum exposure collateralized	33,700
Liability recognized for the obligations	$ 449

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - Stock options - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive securities excluded from the calculation of earnings per share
Antidilutive securities not included in the computation of diluted earnings per share (in shares)	2,033,345
Average share price during the reporting period (in dollars per share)	$ 14.62	$ 17.74

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 7,939	$ 25,044
Weighted average common shares outstanding (in shares)	105,882,553	103,101,789
Dilutive potential shares due to effect of stock options (in shares)	265,694	1,394,803
Total weighted average common shares and dilutive potential shares (in shares)	106,148,247	104,496,592
Basic earnings per share (in dollars per share)	$ 0.08	$ 0.24
Diluted earnings per share (in dollars per share)	$ 0.07	$ 0.24

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Pension benefits
Components of net periodic benefit cost
Service cost	$ 2,098	$ 1,274
Interest cost	1,714	1,827
Expected return on plan assets	(3,091)	(2,759)
Amortization of prior service cost	(581)	(581)
Amortization of the net loss	924	855
Net periodic cost	1,064	616
Pension benefits | Minimum
Components of net periodic benefit cost
Estimated contribution for the current year	2,000
Pension benefits | Maximum
Components of net periodic benefit cost
Estimated contribution for the current year	4,000
Other post-retirement benefits
Components of net periodic benefit cost
Service cost	0	0
Interest cost	7	11
Expected return on plan assets	0	0
Amortization of prior service cost	0	0
Amortization of the net loss	5	17
Net periodic cost	$ 12	$ 28

Disclosures About Fair Value _3

Disclosures About Fair Value of Financial Instruments - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Significant unrealized appreciation or depreciation in financial instruments	$ 0	$ 0
Financial assets:
Securities available-for-sale	765,579,000	819,901,000
Securities held-to-maturity	17,968,000	18,223,000
Accrued interest receivable	25,531,000	25,755,000
Derivative assets	55,360,000	21,593,000
Financial liabilities:
Junior subordinated debentures	121,813,000	121,800,000
Interest rate swaps	55,496,000	20,991,000
Level 1
Financial assets:
Cash and cash equivalents	276,454,000	60,846,000
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	25,531,000	25,755,000
FHLB stock	0	0
Total financial assets	301,985,000	86,601,000
Financial liabilities:
Savings and checking deposits	7,298,979,000	7,022,597,000
Time deposits	0	0
Borrowed funds	194,224,000	246,341,000
Junior subordinated debentures	0	0
Accrued interest payable	834,000	1,142,000
Total financial liabilities	7,494,037,000	7,270,080,000
Level 2
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	765,579,000	819,901,000
Securities held-to-maturity	17,968,000	18,223,000
Loans receivable, net	0	0
Residential mortgage loans held-for-sale	0	0
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	838,400,000	859,158,000
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	0	0
Borrowed funds	0	0
Junior subordinated debentures	0	0
Accrued interest payable	0	0
Total financial liabilities	55,496,000	20,991,000
Level 3
Financial assets:
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Securities held-to-maturity	0	0
Loans receivable, net	8,751,479,000	8,666,149,000
Residential mortgage loans held-for-sale	6,426,000	7,709,000
Accrued interest receivable	0	0
FHLB stock	0	0
Total financial assets	8,758,412,000	8,674,417,000
Financial liabilities:
Savings and checking deposits	0	0
Time deposits	1,514,631,000	1,574,063,000
Borrowed funds	0	0
Junior subordinated debentures	117,557,000	115,518,000
Accrued interest payable	0	0
Total financial liabilities	1,632,188,000	1,689,581,000
Carrying amount
Financial assets:
Cash and cash equivalents	276,454,000	60,846,000
Securities available-for-sale	765,579,000	819,901,000
Securities held-to-maturity	17,208,000	18,036,000
Loans receivable, net	8,737,551,000	8,743,024,000
Residential mortgage loans held-for-sale	6,426,000	7,709,000
Accrued interest receivable	25,531,000	25,755,000
FHLB stock	13,131,000	14,740,000
Total financial assets	9,897,240,000	9,711,604,000
Financial liabilities:
Savings and checking deposits	7,298,979,000	7,022,597,000
Time deposits	1,493,756,000	1,569,410,000
Borrowed funds	191,599,000	246,336,000
Junior subordinated debentures	121,813,000	121,800,000
Accrued interest payable	834,000	1,142,000
Total financial liabilities	9,162,477,000	8,982,276,000
Estimated fair value
Financial assets:
Cash and cash equivalents	276,454,000	60,846,000
Securities available-for-sale	765,579,000	819,901,000
Securities held-to-maturity	17,968,000	18,223,000
Loans receivable, net	8,751,479,000	8,666,149,000
Residential mortgage loans held-for-sale	6,426,000	7,709,000
Accrued interest receivable	25,531,000	25,755,000
FHLB stock	13,131,000	14,740,000
Total financial assets	9,911,928,000	9,634,916,000
Financial liabilities:
Savings and checking deposits	7,298,979,000	7,022,597,000
Time deposits	1,514,631,000	1,574,063,000
Borrowed funds	194,224,000	246,341,000
Junior subordinated debentures	117,557,000	115,518,000
Accrued interest payable	834,000	1,142,000
Total financial liabilities	9,181,721,000	8,980,652,000
Interest rate lock commitments | Level 1
Financial assets:
Derivative assets	0	0
Interest rate lock commitments | Level 2
Financial assets:
Derivative assets	0	0
Interest rate lock commitments | Level 3
Financial assets:
Derivative assets	507,000	559,000
Interest rate lock commitments | Carrying amount
Financial assets:
Derivative assets	507,000	559,000
Interest rate lock commitments | Estimated fair value
Financial assets:
Derivative assets	507,000	559,000
Forward commitments | Level 1
Financial assets:
Derivative assets	0	0
Forward commitments | Level 2
Financial assets:
Derivative assets	197,000	145,000
Forward commitments | Level 3
Financial assets:
Derivative assets	0	0
Forward commitments | Carrying amount
Financial assets:
Derivative assets	197,000	145,000
Forward commitments | Estimated fair value
Financial assets:
Derivative assets	197,000	145,000
Interest rate swaps | Level 1
Financial assets:
Derivative assets	0	0
Financial liabilities:
Interest rate swaps	0	0
Interest rate swaps | Level 2
Financial assets:
Derivative assets	54,656,000	20,889,000
Financial liabilities:
Interest rate swaps	55,376,000	20,952,000
Interest rate swaps | Level 3
Financial assets:
Derivative assets	0	0
Financial liabilities:
Interest rate swaps	0	0
Interest rate swaps | Carrying amount
Financial assets:
Derivative assets	54,656,000	20,889,000
Financial liabilities:
Interest rate swaps	55,376,000	20,952,000
Interest rate swaps | Estimated fair value
Financial assets:
Derivative assets	54,656,000	20,889,000
Financial liabilities:
Interest rate swaps	55,376,000	20,952,000
Risk participation agreements | Level 1
Financial liabilities:
Interest rate swaps	0	0
Risk participation agreements | Level 2
Financial liabilities:
Interest rate swaps	120,000	39,000
Risk participation agreements | Level 3
Financial liabilities:
Interest rate swaps	0	0
Risk participation agreements | Carrying amount
Financial liabilities:
Interest rate swaps	120,000	39,000
Risk participation agreements | Estimated fair value
Financial liabilities:
Interest rate swaps	$ 120,000	$ 39,000

Disclosures About Fair Value _4

Disclosures About Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	$ 765,579	$ 819,901
Derivative assets	55,360	21,593
Interest rate swaps	55,496	20,991
Level 1
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Total financial assets	301,985	86,601
Level 2
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	765,579	819,901
Total financial assets	838,400	859,158
Level 3
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Total financial assets	8,758,412	8,674,417
Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		20,889
Total financial assets	820,939	841,494
Total liabilities	55,496	20,991
Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Total financial assets	0	0
Total liabilities	0	0
Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		20,889
Total financial assets	820,432	840,935
Total liabilities	55,496	20,991
Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Total financial assets	507	559
Total liabilities	0	0
Debt securities | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	124,866	146,742
Debt securities | Measured on recurring basis | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		14,991
Debt securities | Measured on recurring basis | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	80,169	104,784
Debt securities | Measured on recurring basis | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	44,697	26,048
Debt securities | Measured on recurring basis | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		919
Debt securities | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 1 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		0
Debt securities | Measured on recurring basis | Level 1 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 1 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 1 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		0
Debt securities | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	124,866	146,742
Debt securities | Measured on recurring basis | Level 2 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		14,991
Debt securities | Measured on recurring basis | Level 2 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	80,169	104,784
Debt securities | Measured on recurring basis | Level 2 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	44,697	26,048
Debt securities | Measured on recurring basis | Level 2 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		919
Debt securities | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 3 | U.S. government and agencies
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		0
Debt securities | Measured on recurring basis | Level 3 | Government sponsored enterprises
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 3 | States and political subdivisions
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	0	0
Debt securities | Measured on recurring basis | Level 3 | Corporate
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale		0
Total mortgage-backed securities | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	640,713	673,159
Total mortgage-backed securities | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Total mortgage-backed securities | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	640,713	673,159
Total mortgage-backed securities | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities
Assets and liabilities measured at fair value on a recurring basis
Securities available-for-sale	640,713	673,159
Residential mortgage-backed securities | Measured on recurring basis | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	23,167	23,264
Residential mortgage-backed securities | Measured on recurring basis | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	81,823	89,259
Residential mortgage-backed securities | Measured on recurring basis | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	48,113	50,139
Residential mortgage-backed securities | Measured on recurring basis | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	489	497
Residential mortgage-backed securities | Measured on recurring basis | Level 1 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 1 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 1 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 1 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 2 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	23,167	23,264
Residential mortgage-backed securities | Measured on recurring basis | Level 2 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	81,823	89,259
Residential mortgage-backed securities | Measured on recurring basis | Level 2 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	48,113	50,139
Residential mortgage-backed securities | Measured on recurring basis | Level 2 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	489	497
Residential mortgage-backed securities | Measured on recurring basis | Level 3 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 3 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 3 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Residential mortgage-backed securities | Measured on recurring basis | Level 3 | Non-agency
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	202,997	207,016
Collateralized mortgage obligations | Measured on recurring basis | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	175,080	184,682
Collateralized mortgage obligations | Measured on recurring basis | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	109,044	118,302
Collateralized mortgage obligations | Measured on recurring basis | Level 1 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | Level 1 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | Level 1 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | Level 2 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	202,997	207,016
Collateralized mortgage obligations | Measured on recurring basis | Level 2 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	175,080	184,682
Collateralized mortgage obligations | Measured on recurring basis | Level 2 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	109,044	118,302
Collateralized mortgage obligations | Measured on recurring basis | Level 3 | GNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | Level 3 | FNMA
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Collateralized mortgage obligations | Measured on recurring basis | Level 3 | FHLMC
Assets and liabilities measured at fair value on a recurring basis
Residential mortgage-backed securities:	0	0
Interest rate lock commitments | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	507	559
Interest rate lock commitments | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate lock commitments | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	507	559
Forward commitments | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	197	145
Forward commitments | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Forward commitments | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	197	145
Forward commitments | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0	0
Interest rate swaps | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	54,656
Interest rate swaps	55,376	20,952
Interest rate swaps | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Interest rate swaps	0	0
Interest rate swaps | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	54,656
Interest rate swaps	55,376	20,952
Interest rate swaps | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Derivative assets	0
Interest rate swaps	0	0
Risk participation agreements | Measured on recurring basis
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	120	39
Risk participation agreements | Measured on recurring basis | Level 1
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	0	0
Risk participation agreements | Measured on recurring basis | Level 2
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	120	39
Risk participation agreements | Measured on recurring basis | Level 3
Assets and liabilities measured at fair value on a recurring basis
Interest rate swaps	$ 0	$ 0

Disclosures About Fair Value _5

Disclosures About Fair Value of Financial Instruments - Reconciliation of all Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance January 1,	$ 559	$ 0
Total net realized investment gains/ (losses) and net change in unrealized appreciation/ (depreciation):
Included in net income	0	0
Included in other comprehensive income	0	0
Purchases	0	0
Sales	52	0
Transfers from Level 3	0	0
Transfers into Level 3	0	0
Ending balance March 31,	$ 507	$ 0

Disclosures About Fair Value _6

Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 0	$ 0
Total financial assets	301,985	86,601
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Total financial assets	838,400	859,158
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	8,751,479	8,666,149
Total financial assets	8,758,412	8,674,417
Fair Value, Measurements, Nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Real estate owned, net	1,075	950
Total financial assets	48,315	47,188
Fair Value, Measurements, Nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Real estate owned, net	0	0
Total financial assets	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Real estate owned, net	0	0
Total financial assets	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Real estate owned, net	1,075	950
Total financial assets	48,315	47,188
Loans measured for impairment | Fair Value, Measurements, Nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	47,240	46,238
Loans measured for impairment | Fair Value, Measurements, Nonrecurring | Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Loans measured for impairment | Fair Value, Measurements, Nonrecurring | Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	0	0
Loans measured for impairment | Fair Value, Measurements, Nonrecurring | Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans individually assessed	$ 47,240	$ 46,238

Disclosures About Fair Value _7

Disclosures About Fair Value of Financial Instruments - Additional Quantitative Information, Assets Measured at Fair Value, Recurring and Nonrecurring Basis, Level 3 Input (Details) $ in Thousands	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Estimated cost to sell | Loans measured for impairment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cost to sell loans measured for impairment	0.100
Estimated cost to sell | Real estate owned
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cost to sell	0.100
Discount rate | Loans measured for impairment | Discounted cash flow | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cost to sell loans measured for impairment	0.0425
Discount rate | Loans measured for impairment | Discounted cash flow | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cost to sell loans measured for impairment	0.110
Discount rate | Loans measured for impairment | Discounted cash flow | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cost to sell loans measured for impairment	0.0750
Fair Value, Measurements, Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Real estate owned, net	$ 1,075	$ 950
Loans measured for impairment | Fair Value, Measurements, Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans individually assessed	$ 47,240	$ 46,238

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - Designated as Hedging Instrument - Interest rate swaps $ in Millions	Mar. 31, 2020USD ($)derivative
Derivative [Line Items]
Number of derivatives | derivative	4
Notional amount | $	$ 100

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Asset derivatives, notional amount	$ 532,221	$ 421,026
Derivative assets, fair value	55,360	21,593
Liability derivatives, notional amount	587,721	432,666
Liability derivatives, fair value	55,496	20,991
Designated as Hedging Instrument | Interest rate swaps
Derivative [Line Items]
Asset derivatives, notional amount	0
Derivative assets, fair value	0
Liability derivatives, notional amount	100,000
Liability derivatives, fair value	558
Not Designated as Hedging Instrument | Interest rate swaps
Derivative [Line Items]
Asset derivatives, notional amount	446,598	391,502
Derivative assets, fair value	54,656	20,889
Liability derivatives, notional amount	446,598	391,502
Liability derivatives, fair value	54,818	20,952
Not Designated as Hedging Instrument | Interest rate lock commitments
Derivative [Line Items]
Asset derivatives, notional amount	80,158	24,373
Derivative assets, fair value	507	559
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Not Designated as Hedging Instrument | Forward commitments
Derivative [Line Items]
Asset derivatives, notional amount	5,465	5,151
Derivative assets, fair value	197	145
Liability derivatives, notional amount	0	0
Liability derivatives, fair value	0	0
Not Designated as Hedging Instrument | Risk participation agreements
Derivative [Line Items]
Asset derivatives, notional amount	0	0
Derivative assets, fair value	0	0
Liability derivatives, notional amount	41,123	41,164
Liability derivatives, fair value	$ 120	$ 39

Derivative Financial Instrume_5

Derivative Financial Instruments - Gain (Loss) on Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Hedging derivatives:
Decrease in interest expense	$ (12)	$ 0
Other Income
Non-hedging swap derivatives:
Decrease in other income	(177)	0
Mortgage Banking Income
Non-hedging swap derivatives:
Decrease in other income	$ 1	$ 0

Derivative Financial Instrume_6

Derivative Financial Instruments - Schedule of Key Characteristics of Interest Rate Derivative Transactions (Details)	3 Months Ended
	Mar. 31, 2020USD ($)
Designated as Hedging Instrument | Interest rate swaps
Derivative [Line Items]
Notional amount	$ 100,000,000
Cash Flow Hedging | Interest rate swaps
Derivative [Line Items]
Notional amount	100,000,000
Estimated increase/(decrease) to interest expense in the next twelve months	768,000
Cash Flow Hedging | Designated as Hedging Instrument | Issued March 16, 2020
Derivative [Line Items]
Notional amount	$ 30,000,000
Effective rate	0.81%
Estimated increase/(decrease) to interest expense in the next twelve months	$ 200,000
Remaining term (in months)	60 months
Cash Flow Hedging | Designated as Hedging Instrument | Issued March 20, 2020
Derivative [Line Items]
Notional amount	$ 25,000,000
Effective rate	0.15%
Estimated increase/(decrease) to interest expense in the next twelve months	$ 205,000
Remaining term (in months)	36 months
Cash Flow Hedging | Designated as Hedging Instrument | Issued March 20, 2020
Derivative [Line Items]
Notional amount	$ 25,000,000
Effective rate	0.18%
Estimated increase/(decrease) to interest expense in the next twelve months	$ 197,000
Remaining term (in months)	48 months
Cash Flow Hedging | Designated as Hedging Instrument | Issued March 26, 2020
Derivative [Line Items]
Notional amount	$ 20,000,000
Effective rate	(0.07%)
Estimated increase/(decrease) to interest expense in the next twelve months	$ 166,000
Remaining term (in months)	54 months

Changes in Accumulated Other _3

Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Changes in accumulated other comprehensive income by component
Balance beginning of the period	$ 1,353,285	$ 1,257,638
Other comprehensive income before reclassification adjustments	7,748	4,452
Amounts reclassified from accumulted other comprehensive income	286	209
Other comprehensive income	8,034	4,661
Balance end of the period	1,341,792	1,316,276
Unrealized holding gains (losses), tax	3,277	1,781
Change in fair value of interest rate swaps, tax	162	0
Realized gain on securities (gain on sales of investments, net)	51
Reclassification adjustment for gains included in net income, tax	14	0
Reclassification adjustment for prior period service costs included in net income, net of tax	581	581
Reclassification adjustment for defined benefit plan loss included in net income, net of tax	(929)	(872)
Reclassification adjustment for prior period service costs included in net income, tax	(99)	(82)
Unrealized gains and (losses) on securities available- for-sale
Changes in accumulated other comprehensive income by component
Balance beginning of the period	3,147	(6,832)
Other comprehensive income before reclassification adjustments	8,157	4,452
Amounts reclassified from accumulted other comprehensive income	37	0
Other comprehensive income	8,194	4,452
Balance end of the period	11,341	(2,380)
Change in fair value of interest rate swaps
Changes in accumulated other comprehensive income by component
Balance beginning of the period	0	0
Other comprehensive income before reclassification adjustments	(409)	0
Amounts reclassified from accumulted other comprehensive income	0	0
Other comprehensive income	(409)	0
Balance end of the period	(409)	0
Change in defined benefit pension plans
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(40,088)	(32,864)
Other comprehensive income before reclassification adjustments	0	0
Amounts reclassified from accumulted other comprehensive income	249	209
Other comprehensive income	249	209
Balance end of the period	(39,839)	(32,655)
Total
Changes in accumulated other comprehensive income by component
Balance beginning of the period	(36,941)	(39,696)
Other comprehensive income	8,034	4,661
Balance end of the period	$ (28,907)	$ (35,035)

Subsequent Events - Narrative

Subsequent Events - Narrative (Details) $ / shares in Units, $ in Thousands	Apr. 24, 2020USD ($)branchofficestateatm$ / sharesshares	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Subsequent Event [Line Items]
Total assets		$ 10,681,196	$ 10,493,908
Subsequent Event
Subsequent Event [Line Items]
Total assets	$ 12,800,000
Number of branch locations | branch	214
Number of ATMs | atm	273
Number of states with branch and ATM locations | state	4
Mutual First Financial, Inc. | Subsequent Event
Subsequent Event [Line Items]
Total consideration	$ 213,400
Entity shares issued per acquiree share (in shares) | shares	2.4
Number of shares issued for purchase (in shares) | shares	20,659,087
Value of stock issued for purchase	$ 213,400
Value of stock issued (in dollars per share) | $ / shares	$ 10.33
Cash paid in lieu of fractional shares, per whole share (in dollars per share) | $ / shares	$ 10.71
Indiana | Subsequent Event
Subsequent Event [Line Items]
Number of offices acquired | office	36

Uncategorized Items - a2020-03x

Label	Element	Value
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (9,649,000)
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (1,570,000)