Revenue - Summary of Revenue Disaggregated by Sales Channel and Major Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 158,207	$ 153,295
Subscription Advertising and Digital Solutions
Disaggregation Of Revenue [Line Items]
Total revenue	132,247	125,446
Display Advertising
Disaggregation Of Revenue [Line Items]
Total revenue	21,049	21,957
Pay Per Lead
Disaggregation Of Revenue [Line Items]
Total revenue	2,417	3,760
Other
Disaggregation Of Revenue [Line Items]
Total revenue	$ 2,494	$ 2,132