QUARTERLY RESULTS (UNAUDITED) - Summary (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 806,070	$ 801,835	$ 707,760	$ 667,612	$ 651,407	$ 639,770	$ 555,450	$ 544,642	$ 2,983,277	$ 2,391,269	$ 2,051,258
Cost of revenue	234,543	232,211	193,099	179,455	173,263	169,823	148,853	143,894	839,308	635,833	527,184
Operating income	231,917	220,590	209,914	189,258	212,582	200,167	195,594	137,372	851,679	745,715	645,454
Net earnings from continuing operations	(168,724)	130,901	140,020	173,848	148,635	140,113	141,397	157,534	276,045	587,679	517,340
Earnings (loss) from discontinued operations, net of tax	0	0	509	0	0	508	(34,611)	(331,967)	509	(366,070)	49,187
Net earnings attributable to Match Group, Inc. shareholders	$ (168,632)	$ 131,210	$ 140,895	$ 174,250	$ 149,035	$ 141,207	$ 74,917	$ (202,830)	$ 277,723	$ 162,329	$ 453,838
Net earnings per share from continuing operations:
Basic (USD per share)	$ (0.60)	$ 0.47	$ 0.52	$ 0.65	$ 0.56	$ 0.54	$ 0.61	$ 0.69	$ 1.01	$ 2.36	$ 2.28
Diluted (USD per share)	(0.60)	0.43	0.46	0.57	0.50	0.47	0.54	0.61	0.93	2.09	1.95
Per share information attributable to the Match Group, Inc. shareholders:
Basic (USD per share)	(0.60)	0.47	0.52	0.65	0.56	0.54	0.41	(1.11)	1.01	0.73	2.50
Diluted (USD per share)	$ (0.60)	$ 0.43	$ 0.46	$ 0.57	$ 0.50	$ 0.47	$ 0.36	$ (1.00)	$ 0.93	$ 0.66	$ 2.15
Loss related to legal settlement	$ 441,000								$ 441,000
Statement of operations impacts
Interest expense					$ 31,970				130,493	$ 130,624	$ 111,008
Income tax provision					(28,497)				19,897	(43,273)	(15,080)
Net earnings from continuing operations	$ (168,724)	$ 130,901	$ 140,020	$ 173,848	$ 148,635	$ 140,113	$ 141,397	$ 157,534	$ 276,045	$ 587,679	$ 517,340
Net earnings per share from continuing operations:
Basic (USD per share)	$ (0.60)	$ 0.47	$ 0.52	$ 0.65	$ 0.56	$ 0.54	$ 0.61	$ 0.69	$ 1.01	$ 2.36	$ 2.28
Diluted (USD per share)	$ (0.60)	$ 0.43	$ 0.46	$ 0.57	$ 0.50	$ 0.47	$ 0.54	$ 0.61	$ 0.93	$ 2.09	$ 1.95
Dilutive weighted average common shares outstanding (shares)					307,582				304,840	256,020	201,782
Previously Reported
Quarterly Financial Information Disclosure [Abstract]
Net earnings from continuing operations					$ 140,179					$ 553,911	$ 494,633
Net earnings per share from continuing operations:
Basic (USD per share)					$ 0.53					$ 2.21	$ 2.15
Diluted (USD per share)					$ 0.48					$ 2.00	$ 1.88
Statement of operations impacts
Interest expense					$ 43,306					$ 174,791	$ 140,570
Income tax provision					(25,617)					(32,874)	(8,225)
Net earnings from continuing operations					$ 140,179					$ 553,911	$ 494,633
Net earnings per share from continuing operations:
Basic (USD per share)					$ 0.53					$ 2.21	$ 2.15
Diluted (USD per share)					$ 0.48					$ 2.00	$ 1.88
Dilutive weighted average common shares outstanding (shares)					294,975					242,464	194,349
Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2020-06
Quarterly Financial Information Disclosure [Abstract]
Net earnings from continuing operations					$ 8,456					$ 33,768	$ 22,707
Net earnings per share from continuing operations:
Basic (USD per share)					$ 0.03					$ 0.15	$ 0.13
Diluted (USD per share)					$ 0.02					$ 0.09	$ 0.07
Statement of operations impacts
Interest expense					$ (11,336)					$ (44,167)	$ (29,562)
Income tax provision					(2,880)					(10,399)	(6,855)
Net earnings from continuing operations					$ 8,456					$ 33,768	$ 22,707
Net earnings per share from continuing operations:
Basic (USD per share)					$ 0.03					$ 0.15	$ 0.13
Diluted (USD per share)					$ 0.02					$ 0.09	$ 0.07
Dilutive weighted average common shares outstanding (shares)					12,607					13,556	7,433