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, 2022	Mar. 31, 2021
Numerator:
Net income	$ 67,391	$ 22,337
Income allocated to participating securities	(324)	(110)
Net income available to common shareholders	$ 67,067	$ 22,227
Denominator:
Weighted average shares of common stock outstanding – basic (in shares)	55,412	55,263
Basic earnings per share (in usd per share)	$ 1.21	$ 0.40
Numerator:
Net income	$ 67,391	$ 22,337
Income allocated to participating securities	(324)	(110)
Net income available to common shareholders	$ 67,067	$ 22,227
Denominator:
Weighted average shares of common stock outstanding – basic (in shares)	55,412	55,263
Diluted effect of stock options and PVRSUs (in shares)	642	398
Weighted average shares of common stock outstanding – diluted (in shares)	56,054	55,661
Diluted earnings per share (in usd per share)	$ 1.20	$ 0.40