Accrued Liabilities - Severance Payments G&A (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 4,684,000	$ 11,685,000
COVID-19 Related
Restructuring Cost and Reserve [Line Items]
Severance costs	0	5,000,000
Marketing Services
Restructuring Cost and Reserve [Line Items]
Severance costs	1,433,000	10,318,000
SaaS
Restructuring Cost and Reserve [Line Items]
Severance costs	306,000	1,367,000
Thryv International
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 2,945,000	$ 0