SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total Direct Revenue	$ 3,188,843	$ 2,983,277	$ 2,391,269
Direct Revenue
Disaggregation of Revenue [Line Items]
Total Direct Revenue	3,130,221	2,922,871	2,344,724
Direct Revenue | Tinder
Disaggregation of Revenue [Line Items]
Total Direct Revenue	1,794,467	1,649,757	1,355,400
Direct Revenue | Hinge
Disaggregation of Revenue [Line Items]
Total Direct Revenue	283,668	196,538	90,145
Direct Revenue | Other brands
Disaggregation of Revenue [Line Items]
Total Direct Revenue	1,052,086	1,076,576	899,179
Indirect Revenue (principally advertising revenue)
Disaggregation of Revenue [Line Items]
Total Direct Revenue	58,622	60,406	46,545
Americas | Direct Revenue
Disaggregation of Revenue [Line Items]
Total Direct Revenue	1,629,069	1,512,057	1,247,961
Europe | Direct Revenue
Disaggregation of Revenue [Line Items]
Total Direct Revenue	848,886	821,827	680,128
APAC and Other | Direct Revenue
Disaggregation of Revenue [Line Items]
Total Direct Revenue	$ 652,266	$ 588,987	$ 416,635