CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue		$ 235,575	$ 197,375	$ 453,277	$ 384,805
Costs and operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	[1]	83,827	69,601	163,325	134,247
Sales and marketing	[1]	36,776	27,300	67,833	51,755
Research and product development	[1]	46,674	39,522	90,432	77,417
General and administrative	[1]	21,936	20,254	45,287	41,386
Depreciation and amortization		5,850	4,670	12,105	9,882
Total costs and operating expenses		195,063	161,347	378,982	314,687
Income from operations		40,512	36,028	74,295	70,118
Other (loss) income, net		(11)	0	45	0
Interest income, net		1,466	3,476	4,419	6,468
Income before provision for income taxes		41,967	39,504	78,759	76,586
Provision for income taxes		5,987	9,839	11,396	8,258
Net income		$ 35,980	$ 29,665	$ 67,363	$ 68,328
Net income per common share:
Basic (in dollars per share)		$ 1.00	$ 0.82	$ 1.87	$ 1.89
Diluted (in dollars per share)		$ 0.99	$ 0.81	$ 1.85	$ 1.86
Weighted average common shares outstanding:
Basic (in shares)		35,922	36,241	36,111	36,164
Diluted (in shares)		36,204	36,742	36,425	36,720

[1] Includes stock-based compensation expense as follows: Three Months Ended
June 30,Six Months Ended
June 30,2025202420252024Stock-based compensation expense included in costs and operating expenses:Cost of revenue (exclusive of depreciation and amortization)$1,419 $1,175 $2,706 $2,135 Sales and marketing3,045 1,703 5,893 3,213 Research and product development8,176 6,472 15,107 12,154 General and administrative5,659 5,444 10,964 10,766 Total stock-based compensation expense$18,299 $14,794 $34,670 $28,268