CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Employee Stock Ownership Plan	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Beginning Balance at Dec. 31, 2020	$ 1,484,130	$ (7,433)	$ 1	$ 609	$ 1,137,715	$ 378,268	$ 621	$ (25,651)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	32,697					32,697
Other comprehensive loss, net of tax	(309)						(309)
Stock compensation	1,237				1,237
Allocation of ESOP stock	352	304			48
Cash dividend	(10,152)					(10,152)
Exercise of stock options	1,762			1	3,290	(1,529)
Repurchased shares of common stock	(9,994)							(9,994)
Preferred stock dividend	(1,004)					(1,004)
Ending Balance at Mar. 31, 2021	1,498,719	(7,129)	1	610	1,142,290	398,280	312	(35,645)
Beginning Balance at Dec. 31, 2021	1,516,553	(8,615)	1	611	1,146,781	442,306	(2,821)	(61,710)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,759					25,759
Other comprehensive loss, net of tax	(12,349)						(12,349)
Stock compensation	1,552				1,552
Allocation of ESOP stock	671	606			65
Cash dividend	(9,993)					(9,993)
Exercise of stock options	289			1	1,105	(817)
Repurchased shares of common stock	(2,144)							(2,144)
Preferred stock dividend	(1,004)					(1,004)
Ending Balance at Mar. 31, 2022	$ 1,519,334	$ (8,009)	$ 1	$ 612	$ 1,149,503	$ 456,251	$ (15,170)	$ (63,854)