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	Non-Controlling Interest
Beginning Balance at Dec. 31, 2020	$ 1,484,130	$ (7,433)	$ 1	$ 609	$ 1,137,715	$ 378,268	$ 621	$ (25,651)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	63,252					63,252
Other comprehensive income (loss), net of tax	(595)						(595)
Stock compensation	2,726				2,726
Allocation of ESOP stock	720	609			111
Cash dividend	(20,325)					(20,325)
Exercise of stock options	1,828			2	3,355	(1,529)
Repurchased shares of common stock	(20,939)							(20,939)
Preferred stock dividend	(2,008)					(2,008)
Ending Balance at Jun. 30, 2021	$ 1,508,789	(6,824)	1	611	1,143,907	417,658	26	(46,590)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock (in shares)	1,000,000
Beginning Balance at Mar. 31, 2021	$ 1,498,719	(7,129)	1	610	1,142,290	398,280	312	(35,645)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	30,555					30,555
Other comprehensive income (loss), net of tax	(286)						(286)
Stock compensation	1,489				1,489
Allocation of ESOP stock	368	305			63
Cash dividend	(10,173)					(10,173)
Exercise of stock options	66			1	65
Repurchased shares of common stock	(10,945)							(10,945)
Preferred stock dividend	(1,004)					(1,004)
Ending Balance at Jun. 30, 2021	$ 1,508,789	(6,824)	1	611	1,143,907	417,658	26	(46,590)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock (in shares)	500,000
Beginning Balance at Dec. 31, 2021	$ 1,516,553	(8,615)	1	611	1,146,781	442,306	(2,821)	(61,710)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	55,242					54,720			522
Other comprehensive income (loss), net of tax	(26,272)						(26,272)
Stock compensation	3,400				3,400
Allocation of ESOP stock	1,247	1,212			35
Cash dividend	(20,015)					(20,015)
Exercise of stock options	251			1	1,147	(897)
Repurchased shares of common stock	(7,396)							(7,396)
Preferred stock dividend	(2,008)					(2,008)
Acquisition of Trident Abstract Title Agency, LLC (“Trident”)	836								836
Distributions to non-controlling interest	(406)					8			(414)
Ending Balance at Jun. 30, 2022	$ 1,521,432	(7,403)	1	612	1,151,363	474,114	(29,093)	(69,106)	944
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock (in shares)	373,223
Beginning Balance at Mar. 31, 2022	$ 1,519,334	(8,009)	1	612	1,149,503	456,251	(15,170)	(63,854)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,483					28,961			522
Other comprehensive income (loss), net of tax	(13,923)						(13,923)
Stock compensation	1,848				1,848
Allocation of ESOP stock	576	606			(30)
Cash dividend	(10,022)					(10,022)
Exercise of stock options	(38)				42	(80)
Repurchased shares of common stock	(5,252)							(5,252)
Preferred stock dividend	(1,004)					(1,004)
Acquisition of Trident Abstract Title Agency, LLC (“Trident”)	836								836
Distributions to non-controlling interest	(406)					8			(414)
Ending Balance at Jun. 30, 2022	$ 1,521,432	$ (7,403)	$ 1	$ 612	$ 1,151,363	$ 474,114	$ (29,093)	$ (69,106)	$ 944
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of common stock (in shares)	272,779