CONSOLIDATED STATEMENTS OF EQUITY (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance ( in shares) at Dec. 31, 2022		19,980	10,801
Beginning balance at Dec. 31, 2022	$ 1,271,958	$ 484,531	$ 10,801	$ 128,939	$ (50,843)	$ 698,530
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	47,035					47,035
Other comprehensive income (loss) net of tax	(9,019)				(9,019)
Cash dividends, preferred stock	(6,791)					(6,791)
Cash dividends, common stock	(11,882)					(11,882)
Issuance of Class C Common Stock (in shares)			19
Issuance of Class C Common Stock	70		$ 19	51
Stock-based compensation cost	2,254			2,254
Other stock-based award activity	(1,240)			(1,240)
Ending balance (in shares) at Mar. 31, 2023		19,980	10,820
Ending balance at Mar. 31, 2023	1,292,385	$ 484,531	$ 10,820	130,004	(59,862)	726,892
Beginning balance ( in shares) at Dec. 31, 2022		19,980	10,801
Beginning balance at Dec. 31, 2022	1,271,958	$ 484,531	$ 10,801	128,939	(50,843)	698,530
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	94,247
Other comprehensive income (loss) net of tax	16,492				16,492
Ending balance (in shares) at Jun. 30, 2023		19,980	10,836
Ending balance at Jun. 30, 2023	1,346,555	$ 484,531	$ 10,836	130,147	(34,351)	755,392
Beginning balance ( in shares) at Mar. 31, 2023		19,980	10,820
Beginning balance at Mar. 31, 2023	1,292,385	$ 484,531	$ 10,820	130,004	(59,862)	726,892
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	47,212					47,212
Other comprehensive income (loss) net of tax	25,511				25,511
Cash dividends, preferred stock	(6,791)					(6,791)
Cash dividends, common stock	(11,921)					(11,921)
Issuance of Class C Common Stock (in shares)			16
Issuance of Class C Common Stock	70		$ 16	54
Stock-based compensation cost	1,223			1,223
Other stock-based award activity	(1,134)			(1,134)
Ending balance (in shares) at Jun. 30, 2023		19,980	10,836
Ending balance at Jun. 30, 2023	1,346,555	$ 484,531	$ 10,836	130,147	(34,351)	755,392
Beginning balance ( in shares) at Dec. 31, 2023		19,980	10,842
Beginning balance at Dec. 31, 2023	1,411,863	$ 484,531	$ 10,842	132,919	(40,145)	823,716
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	53,746					53,746
Other comprehensive income (loss) net of tax	36,027				36,027
Cash dividends, preferred stock	(6,791)					(6,791)
Cash dividends, common stock	(15,186)					(15,186)
Issuance of Class C Common Stock (in shares)			27
Issuance of Class C Common Stock	91		$ 27	64
Stock-based compensation cost	3,483			3,483
Other stock-based award activity	(2,890)			(2,890)
Ending balance (in shares) at Mar. 31, 2024		19,980	10,869
Ending balance at Mar. 31, 2024	1,480,343	$ 484,531	$ 10,869	133,576	(4,118)	855,485
Beginning balance ( in shares) at Dec. 31, 2023		19,980	10,842
Beginning balance at Dec. 31, 2023	1,411,863	$ 484,531	$ 10,842	132,919	(40,145)	823,716
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	100,851
Other comprehensive income (loss) net of tax	31,004				31,004
Ending balance (in shares) at Jun. 30, 2024		19,980	10,881
Ending balance at Jun. 30, 2024	1,500,979	$ 484,531	$ 10,881	134,143	(9,141)	880,565
Beginning balance ( in shares) at Mar. 31, 2024		19,980	10,869
Beginning balance at Mar. 31, 2024	1,480,343	$ 484,531	$ 10,869	133,576	(4,118)	855,485
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	47,105					47,105
Other comprehensive income (loss) net of tax	(5,023)				(5,023)
Cash dividends, preferred stock	(6,792)					(6,792)
Cash dividends, common stock	(15,233)					(15,233)
Issuance of Class C Common Stock (in shares)			12
Issuance of Class C Common Stock	79		$ 12	67
Stock-based compensation cost	1,555			1,555
Other stock-based award activity	(1,055)			(1,055)
Ending balance (in shares) at Jun. 30, 2024		19,980	10,881
Ending balance at Jun. 30, 2024	$ 1,500,979	$ 484,531	$ 10,881	$ 134,143	$ (9,141)	$ 880,565