Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 308,375	$ 280,606
Marketing Services
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	212,533	227,933
Marketing Services | Print
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	97,906	112,911
Marketing Services | Digital
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	114,627	115,022
SaaS
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	47,343	37,251
Thryv International
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	48,499	15,422
Thryv International | Print
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	21,500	5,713
Thryv International | Digital
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	26,164	9,709
Thryv International | SaaS
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 835	$ 0