SEGMENT INFORMATION - Revenue by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 1,358,748	$ 1,764,355	$ 1,619,317
Operating Segments | International
Segment Reporting Information [Line Items]
Revenue	115,807	101,038	102,295
Domestic
Segment Reporting Information [Line Items]
Revenue	1,242,941	1,663,317	1,517,022
Domestic | Operating Segments | Ads and Leads
Segment Reporting Information [Line Items]
Revenue	1,124,908	1,282,061	1,227,074
Domestic | Operating Segments | Services
Segment Reporting Information [Line Items]
Revenue	$ 118,033	$ 381,256	$ 289,948