Acquisition Related Liabilities - Schedule of Acquisition Related Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	$ 32,675	$ 22,957
Business Combination Separately Recognized Transactions Additional or Adjustment Disclosures Acquisition Costs	1,139	7,539
Payments made during the year	(20,570)	(10,811)
Change in fair value of earn-out	7,050	12,990
Ending Balance	20,294	32,675
eBay CRM [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	8,000	8,000
Payments made during the year	(4,225)
Change in fair value of earn-out	450
Ending Balance	4,225	8,000
Sizmek [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance		1,927
Payments made during the year		(2,168)
Change in fair value of earn-out		241
IgnitionOne [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	1,360	1,360
Payments made during the year	(1,116)
Change in fair value of earn-out	(244)
Ending Balance		1,360
Kinetic Data Solutions, LLC [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	892	24
Payments made during the year	(638)	(205)
Change in fair value of earn-out	(9)	1,073
Ending Balance	245	892
Vital Digital, Corp [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	2,300	2,840
Payments made during the year	(1,495)	(1,105)
Change in fair value of earn-out	195	565
Ending Balance	1,000	2,300
Apptness [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	10,301	8,806
Payments made during the year	(8,783)	(7,333)
Change in fair value of earn-out	4,341	8,828
Ending Balance	5,859	10,301
ArcaMax [Member]
Schedule of acquisition related liabilities [Line Items]
Beginning Balance	9,822
Business Combination Separately Recognized Transactions Additional or Adjustment Disclosures Acquisition Costs		7,539
Payments made during the year	(4,313)
Change in fair value of earn-out	827	2,283
Ending Balance	6,336	$ 9,822
WhatCounts [Member]
Schedule of acquisition related liabilities [Line Items]
Business Combination Separately Recognized Transactions Additional or Adjustment Disclosures Acquisition Costs	1,139
Change in fair value of earn-out	1,490
Ending Balance	$ 2,629