Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	COMMON STOCK [Member]	CAPITAL SURPLUS [Member]	RETAINED EARNINGS [Member]	ACCUMULATED OTHER COMPREHENSIVE LOSS [Member]
Balance at beginning of period at Dec. 31, 2023		$ 32,933	$ 174,695	$ 1,276,305	$ (50,042)
Shares issued for stock-based compensation plans		89	2,476
Net Income (Loss)	$ 100,975			100,975
Dividends on common stock				(28,375)
Stock-based compensation arrangements			1,635
Net change					1,801
Balance at end of period at Jun. 30, 2024	1,512,492	33,022	178,806	1,348,905	(48,241)
Balance at beginning of period at Mar. 31, 2024		32,967	176,227	1,312,464	(52,346)
Shares issued for stock-based compensation plans		55	1,659
Net Income (Loss)	50,641			50,641
Dividends on common stock				(14,200)
Stock-based compensation arrangements			920
Net change					4,105
Balance at end of period at Jun. 30, 2024	1,512,492	33,022	178,806	1,348,905	(48,241)
Balance at beginning of period at Dec. 31, 2024	1,621,187	33,217	187,062	1,433,768	(32,860)
Shares issued for stock-based compensation plans		55	1,927
Net Income (Loss)	118,459			118,459
Dividends on common stock				(30,596)
Stock-based compensation arrangements			1,709
Net change					15,297
Balance at end of period at Jun. 30, 2025	1,728,038	33,272	190,698	1,521,631	(17,563)
Balance at beginning of period at Mar. 31, 2025		33,242	188,718	1,474,589	(23,722)
Shares issued for stock-based compensation plans		30	1,061
Net Income (Loss)	62,347			62,347
Dividends on common stock				(15,305)
Stock-based compensation arrangements			919
Net change					6,159
Balance at end of period at Jun. 30, 2025	$ 1,728,038	$ 33,272	$ 190,698	$ 1,521,631	$ (17,563)