Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2023	$ 1,661,847	$ 12,725	$ 159,688	$ 1,709,157	$ (219,723)
Balance (in shares) at Dec. 31, 2023		61,071,173
Net income per consolidated statements of income (loss)	41,535			41,535
Other comprehensive income (loss), net of tax	(7,431)				(7,431)
Common stock dividends paid per share	(14,207)			(14,207)
Shares withheld to pay taxes, long-term incentive plan	(1,383)	$ 22	(1,405)
Shares withheld to pay taxes, long-term incentive plan (in shares)		107,193
Compensation expense, long-term incentive plan	2,238		2,238
Balance at Mar. 31, 2024	1,682,599	$ 12,747	160,521	1,736,485	(227,154)
Balance (in shares) at Mar. 31, 2024		61,178,366
Balance at Dec. 31, 2024	$ 1,962,327	$ 12,711	157,899	1,875,376	(83,659)
Balance (in shares) at Dec. 31, 2024	61,008,023	61,008,023
Net income per consolidated statements of income (loss)	$ 53,633			53,633
Other comprehensive income (loss), net of tax	34,957				34,957
Common stock dividends paid per share	(14,732)			(14,732)
Shares withheld to pay taxes, long-term incentive plan	(2,415)	$ 28	(2,443)
Shares withheld to pay taxes, long-term incentive plan (in shares)		133,628
Repurchase and retirement of common stock	(15,014)	$ (88)	(14,926)
Repurchase and retirement of common stock (in shares)		(423,240)
Compensation expense, long-term incentive plan	2,471		2,471
Balance at Mar. 31, 2025	$ 2,021,227	$ 12,651	$ 143,001	$ 1,914,277	$ (48,702)
Balance (in shares) at Mar. 31, 2025	60,718,411	60,718,411