Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities
Net income	$ 16,533	$ 21,173
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization of premises and equipment	2,126	2,257
Allocation of ESOP stock	347	400
Stock awards	1,108	912
Net excess tax benefit on stock compensation	(299)	(230)
Amortization of servicing asset	12	11
Net premium amortization in excess of discount accretion on securities	842	873
Net amortization of deferred costs on borrowings	63	54
Amortization of core deposit intangible	1,578	1,005
Net accretion of purchase accounting adjustments	(5,637)	(4,067)
Net amortization of deferred costs and discounts on loans	40	84
Provision for credit losses	9,969	620
Net loss on sale and write-down of other real estate owned	(2)	(89)
Net gain on sale of fixed assets	0	(5)
Net unrealized gain on equity securities	(155)	(108)
Net gain on sales of loans	(173)	(8)
Proceeds from sales of mortgage loans held for sale	7,673	503
Mortgage loans originated for sale	(25,282)	(495)
Increase in value of Bank Owned Life Insurance	(1,575)	(1,321)
Increase in interest and dividends receivable	(2,095)	(1,020)
Deferred tax provision	245	448
Decrease (increase) in other assets	10,877	(17,012)
Increase in other liabilities	47,501	34,084
Total adjustments	47,163	16,896
Net cash provided by operating activities	63,696	38,069
Cash flows from investing activities
Net (increase) decrease in loans receivable	(160,211)	21,335
Proceeds from sale of under performing loans	9,313	0
Purchase of loans receivable	0	(101,674)
Purchase of debt investment securities available-for-sale	(9,980)	(9,953)
Purchase of debt investment securities held-to-maturity	0	(2,077)
Purchase of equity investments	(36)	(53)
Proceeds from maturities and calls of debt investment securities available-for-sale	10,223	6,250
Proceeds from maturities and calls of debt investment securities held-to-maturity	13,001	6,732
Proceeds from sales of debt investment securities available-for-sale	5,869	0
Principal repayments on debt mortgage-backed securities available-for-sale	0	138
Proceeds from Bank Owned Life Insurance	155	0
Proceeds from the redemption of restricted equity investments	36,581	22,754
Purchases of restricted equity investments	(47,216)	(21,320)
Proceeds from sales of other real estate owned	89	550
Purchases of premises and equipment	(1,798)	(840)
Net cash consideration received for acquisition	23,460	59,395
Net cash (used in) provided by investing activities	(85,149)	8,633
Cash flows from financing activities
(Decrease) increase in deposits	(29,963)	27,089
Decrease in short-term borrowings	(50,297)	(16,586)
Proceeds from Federal Home Loan Bank advances	460,000	0
Repayments of Federal Home Loan Bank advances	(162,700)	(10,495)
Repayments of other borrowings	(27)	(90)
Increase in advances by borrowers for taxes and insurance	4,832	1,072
Exercise of stock options	657	519
Payment of employee taxes withheld from stock awards	(1,972)	(2,546)
Purchase of treasury stock	(14,814)	(3,805)
Dividends paid	(10,274)	(8,644)
Net cash provided by (used in) financing activities	195,442	(13,486)
Net increase in cash and due from banks and restricted cash	173,989	33,216
Supplemental Disclosure of Cash Flow Information
Cash and due from banks and restricted cash at beginning of period	133,226	122,328
Cash and due from banks at beginning of period	120,544	120,792
Restricted cash at beginning of period	12,682	1,536
Cash and due from banks at end of period	256,470	134,235
Restricted cash at end of period	50,745	2,576
Federal funds sold at end of period	0	18,733
Cash and due from banks and restricted cash at end of period	307,215	155,544
Cash paid during the period for
Interest	19,293	12,492
Income taxes	0	16
Accretion of unrealized loss on securities reclassified to held-to-maturity	199	211
Net loan charge-offs	1,154	492
Transfer of loans receivable to other real estate owned	106	674
Non-cash assets acquired
Securities	208,880	103,775
Restricted equity investments	5,334	313
Loans	1,559,497	307,017
Premises and equipment	9,744	3,389
Accrued interest receivable	4,161	1,387
Bank Owned Life Insurance	22,440	10,460
Deferred tax asset	(800)	3,978
Other assets	10,077	1,497
Goodwill and other intangible assets, net	139,275	39,339
Total non-cash assets acquired	1,958,608	471,155
Liabilities assumed
Deposits	1,594,403	449,018
Borrowings	92,618	0
Other liabilities	33,602	5,051
Total liabilities assumed	1,720,623	454,069
Debt Securities
Cash flows from investing activities
Principal repayments on debt	310	77
Mortgage-backed Securities Held-to-Maturity
Cash flows from investing activities
Principal repayments on debt	$ 35,091	$ 27,319