Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income	$ 32,843	$ 26,572
Shares used to compute basic net income per share (in shares)	35,856	36,303
Dilutive potential common shares
Stock options (in shares)	153	233
Unvested restricted stock awards (in shares)	566	668
Shares used to compute diluted net income per share (in shares)	36,575	37,204
Basic net income per share (in dollars per share)	$ 0.92	$ 0.73
Diluted net income per share (in dollars per share)	$ 0.90	$ 0.71
Dilutive securities included in the calculation (in shares)	1,691	1,409
Anti-dilutive securities excluded from the calculation (in shares)	176	56