Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic Net Income (Loss) Per Share
Basic net income (loss) per share	$ 161,432	$ 149,456	$ 199,424	$ 202,991
Weighted average common shares outstanding	221,660,000	220,083,000	221,493,000	219,942,000
Basic net income (loss) per share	$ 0.73	$ 0.68	$ 0.90	$ 0.92
Diluted Net Income (Loss) Per Share
Diluted net income (loss)	$ 161,432	$ 149,456	$ 199,424	$ 202,991
Weighted average common shares outstanding	221,660,000	220,083,000	221,493,000	219,942,000
Dilutive stock options and awards	2,001,000	2,167,000	1,784,000	2,119,000
Weighted average shares used to compute diluted net income (loss) per share	223,661,000	222,250,000	223,277,000	222,061,000
Diluted net income (loss) per share	$ 0.72	$ 0.67	$ 0.89	$ 0.91
Employee Stock Option
Anti-dilutive securities
Potential common shares excluded from diluted net income (loss) per share computation	10,767,335	9,283,385	10,901,507	8,982,288