General - Earning Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Accounting Policies [Abstract]
Net income	$ 254,880	$ 295,544	$ 449,272	$ 544,438
Weighted average common shares outstanding (in shares)	138,990	139,358	138,887	139,394
Dilutive effect of stock options and non-vested restricted stock awards (in shares)	254	471	320	567
Weighted average common shares outstanding - assuming dilution (in shares)	139,244	139,829	139,207	139,961
Basic earnings per share (in dollars per share)	$ 1.83	$ 2.12	$ 3.23	$ 3.91
Diluted earnings per share (in dollars per share)	$ 1.83	$ 2.11	$ 3.23	$ 3.89