CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020		48,988
Beginning balance at Dec. 31, 2020	$ 175,427	$ 6	$ (11,434)	$ 144,163	$ 1	$ 42,691
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	15,011			15,011
Exercise of stock options (in shares)		2,512
Exercise of stock options	5,423			5,423
Repurchase of treasury stock, at cost (in shares)		(1)
Repurchase of treasury stock, at cost	(52)		(52)
Issuance of common stock related to employee stock purchase plan (in shares)		276
Issuance of common stock related to employee stock purchase plan	4,804			4,804
Issuance of common stock (in shares)		80
Other comprehensive income (loss)	(37)				(37)
Net income	56,604					56,604
Ending balance (in shares) at Dec. 31, 2021		51,855
Ending balance at Dec. 31, 2021	257,180	$ 6	(11,486)	169,401	(36)	99,295
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	22,121			22,121
Exercise of stock options (in shares)		358
Exercise of stock options	1,195			1,195
Issuance of common stock related to employee stock purchase plan (in shares)		184
Issuance of common stock related to employee stock purchase plan	2,960			2,960
Issuance of common stock (in shares)		308
Other comprehensive income (loss)	27				27
Net income	28,705					28,705
Ending balance (in shares) at Dec. 31, 2022		52,705
Ending balance at Dec. 31, 2022	312,188	$ 6	(11,486)	195,677	(9)	128,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 31,324			31,324
Exercise of stock options (in shares)	575	575
Exercise of stock options	$ 1,549			1,549
Repurchase of treasury stock, at cost (in shares)		(4,040)
Repurchase of treasury stock, at cost	(59,617)		(59,617)
Issuance of common stock related to employee stock purchase plan (in shares)		128
Issuance of common stock related to employee stock purchase plan	1,869			1,869
Issuance of common stock (in shares)		878
Other comprehensive income (loss)	5				5
Net income	8,881					8,881
Ending balance (in shares) at Dec. 31, 2023		50,246
Ending balance at Dec. 31, 2023	$ 296,199	$ 6	$ (71,103)	$ 230,419	$ (4)	$ 136,881