Cover - shares	9 Months Ended
	Sep. 30, 2021	Nov. 09, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-35895
Entity Registrant Name	THRYV HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-2740040
Entity Address, Address Line One	2200 West Airfield Drive, P.O. Box 619810
Entity Address, City or Town	D/FW Airport
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75261
City Area Code	(972)
Local Phone Number	453-7000
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	THRY
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		33,966,497
Entity Central Index Key	0001556739
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Security Exchange Name	NASDAQ