CONDENSED HOLDING COMPANY ONLY FINANCIAL STATEMENTS - CONDENSED STATEMENTS OF INCOME AND OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed financial information
Net interest loss	$ 357,609	$ 177,704	$ 147,421
Non-interest income (loss)	42,068	21,273	12,168
Non-interest expense	(245,299)	(117,828)	(95,387)
Income tax credit	44,170	12,666	10,676
Net income	103,996	42,318	36,186
Parent Company
Condensed financial information
Net interest loss	(8,427)	(5,147)	(5,147)
Dividends received from Bank	20,000	30,000	52,500
Non-interest income (loss)	136	361	531
Non-interest expense	(4,361)	(1,176)	(1,003)
Income before income taxes and equity in undistributed earnings of direct subsidiaries	7,348	24,038	46,881
Income tax credit	4,051	1,819	1,785
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total	11,399	25,857	48,666
Equity in undistributed earnings of subsidiaries	92,597	16,461	(12,480)
Net income	$ 103,996	$ 42,318	$ 36,186