Segment Information - Schedule of Segment Reporting Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 132,656	$ 119,912	$ 292,437	$ 270,075
Adjusted EBITDA	16,440	9,496	63,030	46,456
Software [Member]
Segment Reporting Information [Line Items]
Revenue	124,269	107,039	274,227	244,678
Adjusted EBITDA	16,531	8,616	62,715	44,854
CES [Member]
Segment Reporting Information [Line Items]
Revenue	7,047	10,268	15,059	20,945
Adjusted EBITDA	406	1,212	1,204	2,222
All Other [Member]
Segment Reporting Information [Line Items]
Revenue	1,340	2,605	3,151	4,452
Adjusted EBITDA	$ (497)	$ (332)	$ (889)	$ (620)