Segment and Geographic Information - Segment Results of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue
Revenue	$ 136,389	$ 109,880	$ 381,576	$ 300,331
Segment gross profit
Total segment gross profit	101,414	78,471	284,145	208,283
Platform and support costs	8,962	6,842	27,125	20,218
Stock-based compensation expense	683	527	2,072	1,537
Segment amortization	664	604	1,967	1,607
Total reconciling items	13,846	10,753	40,541	30,101
Gross profit	87,568	67,718	243,604	178,182
Internal Use Software [Member]
Segment gross profit
Segment amortization	3,545	2,795	9,415	6,783
Acquired Intangibles [Member]
Segment gross profit
Segment amortization	656	589	1,929	1,563
Consumer Segment [Member]
Revenue
Revenue	78,002	66,482	215,786	180,432
Segment gross profit
Total segment gross profit	57,078	45,499	156,090	115,891
Enterprise Segment [Member]
Revenue
Revenue	48,044	31,840	130,794	84,518
Segment gross profit
Total segment gross profit	33,993	21,414	93,059	57,011
Degrees Segment [Member]
Revenue
Revenue	10,343	11,558	34,996	35,381
Segment gross profit
Total segment gross profit	$ 10,343	$ 11,558	$ 34,996	$ 35,381