Earnings Per Share - Computation Of Basic And Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income	$ 52,820	$ 67,391
Income allocated to participating securities	(272)	(324)
Net income available to common shareholders	$ 52,548	$ 67,067
Denominator:
Weighted average shares of common stock outstanding – basic (in shares)	51,269	55,412
Basic earnings per share (in usd per share)	$ 1.02	$ 1.21
Numerator:
Net income	$ 52,820	$ 67,391
Income allocated to participating securities	(272)	(324)
Net income available to common shareholders	$ 52,548	$ 67,067
Denominator:
Weighted average shares of common stock outstanding – basic (in shares)	51,269	55,412
Diluted effect of stock options and PVRSUs (in shares)	445	642
Weighted average shares of common stock outstanding – diluted (in shares)	51,714	56,054
Diluted earnings per share (in usd per share)	$ 1.02	$ 1.20