Computation of Basic and Diluted Net Income Per Share Attributable to Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 134,298	$ 200,376
Weighted average common shares outstanding, basic (in shares)	78,742	79,000
Dilutive effect of potential common stock (in shares)	451	798
Total shares, diluted (in shares)	79,193	79,798
Net income per share, basic (in usd per share)	$ 1.71	$ 2.54
Net income per share, diluted (in usd per share)	$ 1.70	$ 2.51
Anti-dilutive potential common shares (in shares)	151	76