Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 03, 2021	Mar. 01, 2021	Sep. 30, 2021	Dec. 31, 2020
Business Acquisition, Date of Acquisition Agreement
Recognized of customer relationships as goodwill			$ 81,917	$ 76,432
Kinetic Data Solutions, LLC [Member]
Business Acquisition, Date of Acquisition Agreement
Business combination, purchase consideration		$ 2,762
Recognized of customer relationships intangibles		1,600
Recognized of customer relationships as goodwill		1,578
Recognized customer relationships as deferred tax liabilities		$ 416
Date of agreement		Mar. 01, 2021
Name of acquired entity		Kinetic Data Solutions, LLC (“Kinetic”)
Kinetic Data Solutions, LLC [Member] | Series A Common Stock [Member]
Business Acquisition, Date of Acquisition Agreement
Business acquisition, number of shares		306,749
Business combination, fair value		$ 2,738
Vital Digital, Corp [Member]
Business Acquisition, Date of Acquisition Agreement
Business combination, purchase consideration	$ 7,894
Recognized of customer relationships intangibles	5,320
Recognized of customer relationships as goodwill	3,910
Recognized customer relationships as deferred tax liabilities	$ 1,385
Date of agreement	Mar. 03, 2021
Name of acquired entity	Vital Digital, Corp (“Vital”)
Earnouts based on the operating performance	$ 1,206
Business combination, cash holdback	578
Other net assets	49
Payments to acquire businesses in cash	$ 3,400
Vital Digital, Corp [Member] | Caivis [Member]
Business Acquisition, Date of Acquisition Agreement
Percentage of interest acquired	5.00%
Vital Digital, Corp [Member] | Series A Common Stock [Member]
Business Acquisition, Date of Acquisition Agreement
Business acquisition, number of shares	306,748
Business combination, fair value	$ 2,710