Earnings Per Share - Computation of basic and diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic earnings per common share:
Net income	$ 123,447	$ 119,175	$ 263,373	$ 219,504
Weighted-average basic common shares	76,058	75,461	75,981	73,465
Basic earnings per common share (in dollars per share)	$ 1.62	$ 1.58	$ 3.47	$ 2.99
Diluted earnings per common share:
Net income	$ 123,447	$ 119,175	$ 263,373	$ 219,504
Weighted-average basic common shares	76,058	75,461	75,981	73,465
Effect of dilutive securities (in shares)	360	633	413	639
Weighted-average dilutive shares	76,418	76,094	76,394	74,104
Diluted earnings per common share (in dollars per share)	$ 1.62	$ 1.57	$ 3.45	$ 2.96