Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest and Dividend Income
Loans receivable	$ 273,478	$ 181,022	$ 534,657	$ 347,116
Investment securities	12,370	5,748	24,134	10,576
Federal Home Loan Bank stock	298	255	602	516
Deposits with banks	13,959	2,508	26,098	3,271
Total interest and dividend income	300,105	189,533	585,491	361,479
Interest Expense
Time deposits	79,975	5,724	144,149	11,784
Other deposits	30,659	6,895	54,476	12,023
Advances from Federal Home Loan Bank	5,498	312	8,096	455
Long-term debt	1,552	1,439	2,995	2,863
Short-term debt	888	0	1,807	0
Total interest expense	118,572	14,370	211,523	27,125
Net interest income before provision for credit losses	181,533	175,163	373,968	334,354
Provision for credit losses	(9,155)	(2,500)	(17,255)	(11,143)
Net interest income after provision for credit losses	172,378	172,663	356,713	323,211
Non-Interest Income
Net gains/(losses) from equity securities	10,663	(955)	15,516	5,019
Securities losses, net	0	0	(3,000)	0
Letters of credit commissions	1,664	1,602	3,234	3,158
Other operating income	5,503	8,383	10,595	15,060
Total non-interest income	23,110	14,618	37,354	34,850
Non-Interest Expense
Salaries and employee benefits	37,048	37,301	75,274	72,776
Occupancy expense	5,528	5,562	11,032	11,175
Computer and equipment expense	4,227	3,297	8,512	6,253
Professional services expense	8,900	7,704	16,306	14,401
Data processing service expense	3,672	3,420	7,396	6,329
FDIC and regulatory assessments	3,012	2,194	6,167	3,996
Marketing expense	2,416	1,740	3,190	2,687
Other real estate owned (income)/expense	81	(33)	131	38
Amortization of investments in low income housing and alternative energy partnerships	21,746	7,235	37,340	15,522
Amortization of core deposit intangibles	559	250	809	474
Acquisition, integration and restructuring costs	0	91	0	4,027
Other operating expense	5,632	5,362	9,850	9,142
Total non-interest expense	92,821	74,123	176,007	146,820
Income before income tax expense	102,667	113,158	218,060	211,241
Income tax expense	9,447	24,180	28,833	47,235
Net income	93,220	88,978	189,227	164,006
Other Comprehensive Income/(Loss), net of tax
Net holding (losses)/gains on securities available-for-sale	(7,531)	(26,455)	4,128	(72,421)
Net holding (losses)/gains on cash flow hedge derivatives	(441)	1,104	(882)	4,158
Total other comprehensive (loss)/income, net of tax	(7,972)	(25,351)	3,246	(68,263)
Total other comprehensive income	$ 85,248	$ 63,627	$ 192,473	$ 95,743
Net Income Per Common Share:
Basic (in dollars per share)	$ 1.29	$ 1.19	$ 2.61	$ 2.18
Diluted (in dollars per share)	1.28	1.18	2.60	2.17
Cash dividends paid per common share (in dollars per share)	$ 0.34	$ 0.34	$ 0.68	$ 0.68
Average Common Shares Outstanding:
Basic (in shares)	72,536,301	74,958,913	72,534,779	75,144,414
Diluted (in shares)	72,753,746	75,270,140	72,826,301	75,493,516
Deposit Account [Member]
Non-Interest Income
Non-Interest Income	$ 1,641	$ 1,632	$ 3,473	$ 3,303
Asset Management [Member]
Non-Interest Income
Non-Interest Income	$ 3,639	$ 3,956	$ 7,536	$ 8,310