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Acquisitions - Pro Forma Information (Details) - Thryv Australia - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]    
Revenue $ 1,181,643 $ 1,299,258
Net income $ 140,854 $ 134,204