Net Income Per Share - Reconciliation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reconciliation of basic earnings per share ("EPS") to diluted EPS
Net income available to common stockholders	$ 87,954	$ 94,576
Basic weighted-average shares outstanding	42,610	43,179
Dilutive effect of potential common stock equivalents — restricted stock units	217	197
Diluted weighted-average shares outstanding	42,827	43,376
Net income per common share:
Basic	$ 2.06	$ 2.19
Diluted	$ 2.05	$ 2.18