Segment Information - Schedule of Segment Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Revenue	$ 233,624	$ 245,555
Segment Gross Profit	153,641	154,808
Segment Adjusted EBITDA	54,114	58,469
Thryv Marketing Services
Segment Reporting Information [Line Items]
Revenue	159,302	185,626
Segment Gross Profit	104,546	117,654
Segment Adjusted EBITDA	50,679	58,673
Thryv SaaS
Segment Reporting Information [Line Items]
Revenue	74,322	59,929
Segment Gross Profit	49,095	37,154
Segment Adjusted EBITDA	$ 3,435	$ (204)