UNAUDITED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 72,689	$ 106,040
Short-term investments	536,119	63,465
Cash and cash equivalents	608,808	169,505
Available for sale (amortized cost $5,257,264 and $7,825,435, respectively)	4,261,518	6,690,778
Held to maturity (fair value $387,654 and $423,226, respectively)	455,900	476,647
Total securities	4,717,418	7,167,425
Loans held for sale	23,892	4,543
Loans:
Total loans	13,919,275	13,575,531
Allowance for loan losses	(155,146)	(142,211)
Unamortized premiums, net of unearned discounts and deferred fees	(19,307)	(13,003)
Net loans	13,744,822	13,420,317
Federal Home Loan Bank stock, at cost	37,125	41,363
Premises and equipment	59,033	62,493
Bank-owned life insurance	163,700	160,790
Goodwill and other intangibles, net	566,709	568,009
Deferred income taxes, net	416,081	331,963
Prepaid expenses	156,113	165,368
Other assets	527,873	426,863
Assets of discontinued operations	124,718	128,219
Total assets	21,146,292	22,646,858
Deposits:
Demand	5,177,015	6,240,637
Interest checking accounts	3,671,871	4,568,122
Savings accounts	1,393,545	1,831,123
Money market investment	4,709,149	4,710,095
Certificates of deposit	2,472,589	1,624,382
Total deposits	17,424,169	18,974,359
Borrowed funds:
Short-term Federal Home Loan Bank advances	656,336	691,297
Escrow deposits of borrowers	24,947	22,314
Interest rate swap collateral funds	16,900	14,430
Long-term Federal Home Loan Bank advances	17,189	12,787
Total borrowed funds	715,372	740,828
Other liabilities	525,378	424,951
Liabilities of discontinued operations	34,820	34,930
Total liabilities	18,699,739	20,175,068
Commitments and contingencies (see Note 13)
Shareholders’ equity
Common shares, $0.01 par value, 1,000,000,000 shares authorized, 176,376,675 and 176,172,073 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	1,766	1,762
Additional paid in capital	1,661,136	1,649,141
Unallocated common shares held by the Employee Stock Ownership Plan	(133,992)	(137,696)
Retained earnings	1,747,225	1,881,775
Accumulated other comprehensive income, net of tax	(829,582)	(923,192)
Total shareholders’ equity	2,446,553	2,471,790
Total liabilities and shareholders’ equity	21,146,292	22,646,858
Commercial and industrial | Commercial Portfolio Segment
ASSETS
Loans held for sale	22,213	0
Loans:
Total loans	3,087,509	3,150,946
Allowance for loan losses	(26,518)	(26,859)
Commercial real estate | Commercial Portfolio Segment
Loans:
Total loans	5,396,912	5,155,323
Allowance for loan losses	(70,623)	(54,730)
Commercial construction | Commercial Portfolio Segment
Loans:
Total loans	382,615	336,276
Allowance for loan losses	(7,799)	(7,085)
Business banking | Commercial Portfolio Segment
Loans:
Total loans	1,087,799	1,090,492
Allowance for loan losses	(15,218)	(16,189)
Residential real estate | Residential Real Estate
ASSETS
Loans held for sale	1,679	4,543
Loans:
Total loans	2,550,861	2,460,849
Allowance for loan losses	(26,355)	(28,129)
Consumer home equity | Consumer Portfolio Segment
Loans:
Total loans	1,193,859	1,187,547
Allowance for loan losses	(5,482)	(6,454)
Other consumer | Consumer Portfolio Segment
Loans:
Total loans	$ 219,720	$ 194,098