CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Total ANGI Homeservices Inc. Shareholders' Equity	Redeemable Noncontrolling Interests	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interests
Balance at beginning of period at Dec. 31, 2019			$ 26,663
Increase (Decrease) in Redeemable Noncontrolling Interests
Net (loss) earnings			(275)
Other comprehensive (loss) income			99
Stock-based compensation expense			15
Purchase of redeemable noncontrolling interests			(3,165)
Adjustment of redeemable noncontrolling interests to fair value			476
Balance at end of period at Mar. 31, 2020			23,813
Balance at beginning of period at Dec. 31, 2019	$ 1,323,552	$ 1,314,288		$ 87	$ 422	$ 1,357,075	$ 16,032	$ (1,379)	$ (57,949)	$ 9,264
Balance at beginning of period (shares) at Dec. 31, 2019				87,007	421,570
Increase (Decrease) in Shareholders' Equity
Net (loss) earnings	(8,909)	(8,958)					(8,958)			49
Other comprehensive (loss) income	(6,667)	(6,614)						(6,614)		(53)
Stock-based compensation expense	22,211	22,211				22,211
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(2,552)	(2,552)		$ 1		(2,553)
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)				617
Issuance of common stock to IAC pursuant to the employee matters agreement	(791)	(791)				(791)
Issuance of common stock to IAC pursuant to the employee matters agreement (shares)					187
Purchase of treasury stock	(38,971)	(38,971)							(38,971)
Purchase of redeemable noncontrolling interests			(3,165)
Adjustment of redeemable noncontrolling interests to fair value	(476)	(476)				(476)
Adjustment pursuant to the tax sharing agreement	3,613	3,613				3,613
Balance at end of period at Mar. 31, 2020	1,291,010	1,281,750		$ 88	$ 422	1,379,079	7,074	(7,993)	(96,920)	9,260
Balance at end of period (shares) at Mar. 31, 2020				87,624	421,757
Balance at beginning of period at Dec. 31, 2020	26,364		26,364
Increase (Decrease) in Redeemable Noncontrolling Interests
Net (loss) earnings			(60)
Other comprehensive (loss) income			580
Stock-based compensation expense			0
Purchase of redeemable noncontrolling interests			(22,938)
Adjustment of redeemable noncontrolling interests to fair value			662
Balance at end of period at Mar. 31, 2021	4,608		4,608
Balance at beginning of period at Dec. 31, 2020	1,282,857	1,272,290		$ 94	$ 422	1,379,469	9,749	4,637	(122,081)	10,567
Balance at beginning of period (shares) at Dec. 31, 2020				94,238	421,862
Increase (Decrease) in Shareholders' Equity
Net (loss) earnings	2,074	1,931					1,931			143
Other comprehensive (loss) income	99	(14)						(14)		113
Stock-based compensation expense	2,542	2,542				2,542
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(48,051)	(48,051)		$ 1		(48,052)
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)				1,591
Issuance of common stock to IAC pursuant to the employee matters agreement	0			$ 3		(3)
Issuance of common stock to IAC pursuant to the employee matters agreement (shares)				2,579	96
Purchase of treasury stock	(4,916)	(4,916)							(4,916)
Purchase of redeemable noncontrolling interests			$ (22,938)
Adjustment of redeemable noncontrolling interests to fair value	(662)	(662)				(662)
Balance at end of period at Mar. 31, 2021	$ 1,233,943	$ 1,223,120		$ 98	$ 422	$ 1,333,294	$ 11,680	$ 4,623	$ (126,997)	$ 10,823
Balance at end of period (shares) at Mar. 31, 2021				98,408	421,958