Goodwill and Intangible Assets - Schedule of Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 609,457	$ 609,457
Goodwill, acquired during period	64,392	0
Goodwill, impairment loss	0	0	$ 0
Effects of foreign currency translation	(1,963)
Ending balance	671,886	609,457	609,457
Marketing Services
Goodwill [Roll Forward]
Beginning balance	390,573	390,573
Goodwill, acquired during period	0	0
Goodwill, impairment loss	0	0
Effects of foreign currency translation	0
Ending balance	390,573	390,573	390,573
SaaS
Goodwill [Roll Forward]
Beginning balance	218,884	218,884
Goodwill, acquired during period	0	0
Goodwill, impairment loss	0	0
Effects of foreign currency translation	0
Ending balance	218,884	218,884	218,884
Thryv International
Goodwill [Roll Forward]
Beginning balance	0	0
Goodwill, acquired during period	64,392	0
Goodwill, impairment loss	0	0
Effects of foreign currency translation	(1,963)
Ending balance	$ 62,429	$ 0	$ 0