CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - 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	Common Stock Class C Common Stock	Additional Paid-in Capital	(Accumulated Deficit) Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock [Member]	Noncontrolling Interests
Balance at beginning of period at Dec. 31, 2018			$ 18,163
Increase (Decrease) in Redeemable Noncontrolling Interests
Net (loss) earnings			(109)
Other comprehensive (loss) income			186
Stock-based compensation expense			42
Adjustment of redeemable noncontrolling interests to fair value			4,960
Balance at end of period at Mar. 31, 2019			23,242
Balance at beginning of period at Dec. 31, 2018	$ 1,321,987	$ 1,312,941		$ 81	$ 421	$ 0	$ 1,333,097	$ (18,797)	$ (1,861)	$ 0	$ 9,046
Balance at beginning of period (shares) at Dec. 31, 2018				80,515	421,118	0
Increase (Decrease) in Shareholders' Equity
Net (loss) earnings	9,960	9,969						9,969			(9)
Other comprehensive (loss) income	1,676	1,670							1,670		6
Stock-based compensation expense	19,240	19,240					19,240
Issuance of common stock pursuant to stock-based awards, net of withholding taxes	(15,187)	(15,187)		$ 4			(15,191)
Issuance of common stock pursuant to stock-based awards, net of withholding taxes (shares)				4,203
Issuance of common stock to IAC pursuant to the employee matters agreement	(795)	(795)					(795)
Issuance of common stock to IAC pursuant to the employee matters agreement (shares)					334
Adjustment of redeemable noncontrolling interests to fair value	(4,960)	(4,960)					(4,960)
Other	(20)	(20)					(20)
Balance at end of period at Mar. 31, 2019	1,331,901	1,322,858		$ 85	$ 421	$ 0	1,331,371	(8,828)	(191)	0	9,043
Balance at end of period (shares) at Mar. 31, 2019				84,718	421,452	0
Balance at beginning of period at Dec. 31, 2019	26,663		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		$ 23,813
Balance at beginning of period at Dec. 31, 2019	1,323,552	1,314,288		$ 87	$ 422	$ 0	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	0
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)
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	$ 0	$ 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	0