CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at beginning of period at Dec. 31, 2022	$ 1,735,055	$ 110,705	$ 42,467	$ 1,080,964	$ 1,120,925	$ (620,006)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	127,451				150,283	(22,832)
Cash dividends declared:
Preferred	(6,038)				(6,038)
Common	(38,430)				(38,430)
Issuance of shares of common stock	(250)		189	(439)
Stock based compensation	7,742			7,742
Balance at end of period at Sep. 30, 2023	1,825,530	110,705	42,656	1,088,267	1,226,740	(642,838)
Balance at beginning of period at Jun. 30, 2023	1,858,990	110,705	42,645	1,087,358	1,193,522	(575,240)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(19,507)				48,091	(67,598)
Cash dividends declared:
Preferred	(2,013)				(2,013)
Common	(12,860)				(12,860)
Issuance of shares of common stock	71		11	60
Stock based compensation	849			849
Balance at end of period at Sep. 30, 2023	1,825,530	110,705	42,656	1,088,267	1,226,740	(642,838)
Balance at beginning of period at Dec. 31, 2023	1,933,117	110,705	42,688	1,090,740	1,141,501	(452,517)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	243,819				155,602	88,217
Cash dividends declared:
Preferred	(6,038)				(6,038)
Common	(38,818)				(38,818)
Issuance of shares of common stock	46		196	(150)
Stock based compensation	8,247			8,247
Balance at end of period at Sep. 30, 2024	2,140,373	110,705	42,884	1,098,837	1,252,247	(364,300)
Balance at beginning of period at Jun. 30, 2024	2,027,850	110,705	42,852	1,096,619	1,203,092	(425,418)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	125,271				64,153	61,118
Cash dividends declared:
Preferred	(2,013)				(2,013)
Common	(12,985)				(12,985)
Issuance of shares of common stock	112		32	80
Stock based compensation	2,138			2,138
Balance at end of period at Sep. 30, 2024	$ 2,140,373	$ 110,705	$ 42,884	$ 1,098,837	$ 1,252,247	$ (364,300)