Segment Information - Schedule of Segment Operating Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Revenue	$ 224,084	$ 251,421	$ 457,708	$ 496,976
Segment Gross Profit	148,588	160,085	302,229	314,893
Segment Adjusted EBITDA	59,314	69,439	113,428	127,908
Thryv Marketing Services
Segment Reporting Information [Line Items]
Revenue	146,290	188,963	305,592	374,589
Segment Gross Profit	96,299	120,875	200,845	238,529
Segment Adjusted EBITDA	49,149	63,209	99,828	121,882
Thryv SaaS
Segment Reporting Information [Line Items]
Revenue	77,794	62,458	152,116	122,387
Segment Gross Profit	52,289	39,210	101,384	76,364
Segment Adjusted EBITDA	$ 10,165	$ 6,230	$ 13,600	$ 6,026