Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest and Dividend Income
Loans receivable	$ 211,541	$ 163,948	$ 558,657	$ 485,162
Investment securities	7,483	3,707	18,059	9,963
Federal Home Loan Bank stock	258	258	774	730
Deposits with banks	6,732	714	10,003	1,467
Total interest and dividend income	226,014	168,627	587,493	497,322
Interest Expense
Time deposits	10,218	9,299	22,002	33,363
Other deposits	13,871	5,243	25,894	16,302
Advances from Federal Home Loan Bank	2,941	146	3,396	1,036
Long-term debt	1,455	1,455	4,318	4,318
Total interest expense	28,485	16,143	55,610	55,019
Net interest income before provision/(reversal) for credit losses	197,529	152,484	531,883	442,303
Provision/(reversal) for credit losses	(2,000)	(3,050)	(13,143)	19,508
Net interest income after provision/(reversal) for credit losses	195,529	149,434	518,740	461,811
Non-Interest Income
Net (losses)/gains from equity securities	(3,661)	3	1,358	(3,628)
Securities losses, net	0	0	0	853
Letters of credit commissions	1,609	1,764	4,767	5,236
Other operating income	6,054	5,470	21,114	17,157
Total non-interest income	9,876	12,216	44,726	34,799
Non-Interest Expense
Salaries and employee benefits	34,677	33,437	107,453	98,917
Occupancy expense	5,975	5,136	17,150	15,142
Computer and equipment expense	3,509	3,175	9,762	10,093
Professional services expense	6,337	6,232	20,738	16,698
Data processing service expense	3,484	3,524	9,813	10,422
FDIC and regulatory assessments	2,003	1,830	5,999	5,195
Marketing expense	2,005	945	4,692	5,270
Other real estate owned expense/(income)	55	(88)	93	197
Amortization of investments in low income housing and alternative energy partnerships	11,949	12,411	27,471	34,663
Amortization of core deposit intangibles	250	172	724	515
Cost associated with debt redemption	0	0	0	732
Acquisition, integration and restructuring costs	59	476	4,086	476
Other operating expense	5,085	4,965	14,227	15,005
Total non-interest expense	75,388	72,215	222,208	213,325
Income before income tax expense	130,017	89,435	341,258	283,285
Income tax expense	30,982	17,038	78,217	60,305
Net income	99,035	72,397	263,041	222,980
Other Comprehensive Income, net of tax
Net holding losses on securities available-for-sale	(43,191)	(3,232)	(115,612)	(7,872)
Net holding gains on cash flow hedge derivatives	1,645	492	5,803	2,194
Total other comprehensive loss, net of tax	(41,546)	(2,740)	(109,809)	(5,678)
Total other comprehensive income	$ 57,489	$ 69,657	$ 153,232	$ 217,302
Net Income Per Common Share:
Basic (in dollars per share)	$ 1.35	$ 0.93	$ 3.53	$ 2.83
Diluted (in dollars per share)	1.35	0.93	3.52	2.82
Cash dividends paid per common share (in dollars per share)	$ 0.34	$ 0.31	$ 1.02	$ 0.93
Average Common Shares Outstanding:
Basic (in shares)	73,158,096	77,846,424	74,475,032	78,841,899
Diluted (in shares)	73,444,096	78,153,408	74,799,324	79,128,644
Deposit Account [Member]
Non-Interest Income
Non-Interest Income	$ 1,690	$ 1,401	$ 4,993	$ 4,107
Asset Management [Member]
Non-Interest Income
Non-Interest Income	$ 4,184	$ 3,578	$ 12,494	$ 11,074