Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest and Dividend Income
Loans receivable	$ 293,108	$ 211,541	$ 827,765	$ 558,657
Investment securities	12,698	7,483	36,832	18,059
Federal Home Loan Bank stock	355	258	957	774
Deposits with banks	17,307	6,732	43,405	10,003
Total interest and dividend income	323,468	226,014	908,959	587,493
Interest Expense
Time deposits	90,022	10,218	234,171	22,002
Other deposits	38,207	13,871	92,683	25,894
Advances from Federal Home Loan Bank	6,779	2,941	14,875	3,396
Long-term debt	1,726	1,455	4,721	4,318
Short-term debt	1,094	0	2,901	0
Total interest expense	137,828	28,485	349,351	55,610
Net interest income before provision for credit losses	185,640	197,529	559,608	531,883
Provision for credit losses	(7,000)	(2,000)	(24,255)	(13,143)
Net interest income after provision for credit losses	178,640	195,529	535,353	518,740
Non-Interest Income
Net (losses)/gains from equity securities	(6,218)	(3,661)	9,298	1,358
Securities losses, net	0	0	(3,000)	0
Letters of credit commissions	1,738	1,609	4,972	4,767
Other operating income	5,631	6,054	16,226	21,114
Total non-interest income	7,837	9,876	45,191	44,726
Non-Interest Expense
Salaries and employee benefits	38,774	34,677	114,048	107,453
Occupancy expense	5,851	5,975	16,883	17,150
Computer and equipment expense	4,387	3,509	12,899	9,762
Professional services expense	7,906	6,337	24,212	20,738
Data processing service expense	3,614	3,484	11,010	9,813
FDIC and regulatory assessments	3,063	2,003	9,230	5,999
Marketing expense	1,587	2,005	4,777	4,692
Other real estate owned expense	435	55	566	93
Amortization of investments in low income housing and alternative energy partnerships	23,157	11,949	60,497	27,471
Amortization of core deposit intangibles	250	250	1,059	724
Acquisition, integration and restructuring costs	0	59	0	4,086
Other operating expense	4,949	5,085	14,799	14,227
Total non-interest expense	93,973	75,388	269,980	222,208
Income before income tax expense	92,504	130,017	310,564	341,258
Income tax expense	10,133	30,982	38,966	78,217
Net income	82,371	99,035	271,598	263,041
Other Comprehensive Income/(Loss), net of tax
Net holding losses on securities available-for-sale	(24,043)	(43,191)	(19,915)	(115,612)
Net holding (losses)/gains on cash flow hedge derivatives	(441)	1,645	(1,323)	5,803
Total other comprehensive loss, net of tax	(24,484)	(41,546)	(21,238)	(109,809)
Total other comprehensive income	$ 57,887	$ 57,489	$ 250,360	$ 153,232
Net Income Per Common Share:
Basic (in dollars per share)	$ 1.14	$ 1.34	$ 3.74	$ 3.52
Diluted (in dollars per share)	1.13	1.33	3.73	3.5
Cash dividends paid per common share (in dollars per share)	$ 0.34	$ 0.34	$ 1.02	$ 1.02
Average Common Shares Outstanding:
Basic (in shares)	72,568,518	73,956,052	72,546,149	74,743,941
Diluted (in shares)	72,890,414	74,242,052	72,847,907	75,068,232
Deposit Account [Member]
Non-Interest Income
Non-Interest Income	$ 1,536	$ 1,690	$ 5,009	$ 4,993
Asset Management [Member]
Non-Interest Income
Non-Interest Income	$ 5,150	$ 4,184	$ 12,686	$ 12,494