Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 17,615	$ 28,419	$ 37,361	$ 111,275
Shares used to compute basic net income per share (in shares)	35,174	35,912	35,486	35,938
Dilutive potential common shares
Stock options (in shares)	27	70	53	114
Unvested restricted stock awards (in shares)	271	99	299	300
Shares used to compute diluted net income per share (in shares)	35,472	36,081	35,838	36,352
Basic net income per share (in dollars per share)	$ 0.50	$ 0.79	$ 1.05	$ 3.10
Diluted net income per share (in dollars per share)	$ 0.50	$ 0.79	$ 1.04	$ 3.06
Dilutive securities included in the calculation (in shares)	1,304	663	1,238	1,152
Anti-dilutive securities excluded from the calculation (in shares)	1,679	1,342	1,446	857