CONSOLIDATED STATEMENTS OF EQUITY (unaudited) - USD ($) $ in Thousands	Total	6.875% Non-Cumulative Preferred Stock, Series I	Class C non-voting common stock	Preferred Stock	Preferred Stock 6.875% Non-Cumulative Preferred Stock, Series I	Common Stock	Common Stock Class C non-voting common stock	Additional Paid-in Capital	Additional Paid-in Capital Class C non-voting common stock	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance ( in shares) at Dec. 31, 2024				16,980,000		10,891,000
Beginning Balance at Dec. 31, 2024	$ 1,489,026			$ 411,149		$ 10,891		$ 135,894		$ (12,147)	$ 943,239
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	49,651										49,651
Other comprehensive (loss)/income net of tax	10,339									10,339
Cash dividends, preferred stock	(5,666)										(5,666)
Cash dividends, common stock	(16,352)										(16,352)
Issuance of Class C Common Stock (in shares)						42,000
Issuance of Class C Common Stock	121					$ 42		79
Stock-based compensation cost	3,529							3,529
Other stock-based award activity	(5,002)							(5,002)
Ending balance (in shares) at Mar. 31, 2025				16,980,000		10,933,000
Ending Balance at Mar. 31, 2025	1,525,646			$ 411,149		$ 10,933		134,500		(1,808)	970,872
Beginning balance ( in shares) at Dec. 31, 2024				16,980,000		10,891,000
Beginning Balance at Dec. 31, 2024	1,489,026			$ 411,149		$ 10,891		135,894		(12,147)	943,239
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	104,488
Other comprehensive (loss)/income net of tax	(5,518)
Ending balance (in shares) at Jun. 30, 2025				16,980,000		10,934,000
Ending Balance at Jun. 30, 2025	1,544,307			$ 411,149		$ 10,934		136,248		(17,665)	1,003,641
Beginning balance ( in shares) at Mar. 31, 2025				16,980,000		10,933,000
Beginning Balance at Mar. 31, 2025	1,525,646			$ 411,149		$ 10,933		134,500		(1,808)	970,872
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	54,837										54,837
Other comprehensive (loss)/income net of tax	(15,857)									(15,857)
Cash dividends, preferred stock	(5,667)										(5,667)
Cash dividends, common stock	(16,401)										(16,401)
Issuance of Class C Common Stock (in shares)						1,000
Issuance of Class C Common Stock	81					$ 1		80
Stock-based compensation cost	1,745							1,745
Other stock-based award activity	(77)							(77)
Ending balance (in shares) at Jun. 30, 2025				16,980,000		10,934,000
Ending Balance at Jun. 30, 2025	1,544,307			$ 411,149		$ 10,934		136,248		(17,665)	1,003,641
Beginning balance ( in shares) at Dec. 31, 2025				20,980,000		10,857,000
Beginning Balance at Dec. 31, 2025	1,718,949			$ 507,993		$ 10,857		139,370		13,382	1,047,347
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	59,123										59,123
Other comprehensive (loss)/income net of tax	(28,453)									(28,453)
Cash dividends, preferred stock	(7,291)										(7,291)
Cash dividends, common stock	(17,341)										(17,341)
Repurchase of Class C Common Stock (in shares)						(47,000)
Repurchase of Class C Common Stock	(7,178)					$ (47)					(7,131)
Issuance of Class C Common Stock (in shares)						39,000
Issuance of Class C Common Stock	99					$ 39		60
Stock-based compensation cost	3,004							3,004
Other stock-based award activity	(3,891)							(3,891)
Ending balance (in shares) at Mar. 31, 2026				20,980,000		10,849,000
Ending Balance at Mar. 31, 2026	1,717,021			$ 507,993		$ 10,849		138,543		(15,071)	1,074,707
Beginning balance ( in shares) at Dec. 31, 2025				20,980,000		10,857,000
Beginning Balance at Dec. 31, 2025	1,718,949			$ 507,993		$ 10,857		139,370		13,382	1,047,347
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	126,074
Other comprehensive (loss)/income net of tax	$ (31,616)
Repurchase of Class C Common Stock (in shares)	(47,319)
Repurchase of Class C Common Stock			$ (7,100)
Ending balance (in shares) at Jun. 30, 2026				24,980,000		10,850,000
Ending Balance at Jun. 30, 2026	$ 1,854,434			$ 604,757		$ 10,850		140,836		(18,234)	1,116,225
Beginning balance ( in shares) at Mar. 31, 2026				20,980,000		10,849,000
Beginning Balance at Mar. 31, 2026	1,717,021			$ 507,993		$ 10,849		138,543		(15,071)	1,074,707
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	66,951										66,951
Other comprehensive (loss)/income net of tax	(3,163)									(3,163)
Cash dividends, preferred stock	(8,074)										(8,074)
Cash dividends, common stock	(17,359)										(17,359)
Issuance of Class C Common Stock (in shares)					4,000,000		1,000
Issuance of Class C Common Stock		$ 96,764	$ 62		$ 96,764		$ 1		$ 61
Stock-based compensation cost	2,323							2,323
Other stock-based award activity	(91)							(91)
Ending balance (in shares) at Jun. 30, 2026				24,980,000		10,850,000
Ending Balance at Jun. 30, 2026	$ 1,854,434			$ 604,757		$ 10,850		$ 140,836		$ (18,234)	$ 1,116,225