Consolidated Statements of Stockholders' Deficit - USD ($) shares in Thousands, $ in Thousands	Total	5.75% Convertible Notes	1.50% Convertible Notes	Common Stock	Common Stock 5.75% Convertible Notes	Additional Paid-in Capital	Additional Paid-in Capital Hydraulic	Additional Paid-in Capital 5.75% Convertible Notes	Additional Paid-in Capital 1.50% Convertible Notes	Accumulated Losses	AOCI Attributable to Parent	Treasury Stock	Noncontrolling Interest	Noncontrolling Interest Hydraulic
Beginning Balance at Dec. 31, 2017	$ (50,976)			$ 9		$ 1,044,599				$ (223,718)	$ (51,280)	$ (844,030)	$ 23,444
Beginning Balance (in shares) at Dec. 31, 2017				9,016
Shares issued on vesting of restricted stock (in shares)				110
Compensation benefit in connection with restricted stock and stock options	(2,405)					(2,405)
Shares issued on conversion of 5.75% Convertible Notes		$ 13,154			$ 1			$ 13,153
Shares issued on conversion of 5.75% Convertible Notes (in shares)					1,411
Shares issued on payment of interest of 5.75% Convertible Notes		$ 3,068			$ 1			$ 3,067
Shares issued on payment of interest of 5.75% Convertible Notes (in shares)					625
Write-off of equity component of 1.50% Convertible notes			$ (23,250)						$ (23,250)
Cumulative effect of accounting change for adoption | ASC 606	17,716									16,540			1,176
Cumulative effect of accounting change for adoption | ASU 2016-01										(3,177)	3,177
Payments from non-controlling interest holders, net of imputed interest	194												194
Elimination of non-controlling interest related to the acquisition of additional interest in Hydraulic joint venture							$ 2,097							$ (2,097)
Shares repurchased on vesting of restricted stock	(223)											(223)
Tax benefit related to amortization of convertible notes' discount	159					159
Change in redemption value of redeemable non-controlling interest holders	2,004									2,004
Net loss	(89,669)									(100,521)			10,852
Foreign currency translation	(5,013)					(48)					(4,965)
Distributions to joint venture partners	(10,494)									(3,924)			(6,570)
Ending Balance at Dec. 31, 2018	(145,735)			$ 11		1,037,372				(312,796)	(53,068)	(844,253)	26,999
Ending Balance (in shares) at Dec. 31, 2018				11,162
Shares issued on vesting of restricted stock (in shares)				249
Compensation benefit in connection with restricted stock and stock options	971					971
Shares issued on conversion of 5.75% Convertible Notes	6,229			$ 4		6,225
Shares issued on conversion of 5.75% Convertible Notes (in shares)				3,727
Re-purchase of Umbro China Equity	(1,265)					(770)							(495)
Shares repurchased on vesting of restricted stock	(189)											(189)
Reclass from redeemable NCI	(856)												(856)
Change in redemption value of redeemable non-controlling interest holders	1,586					1,586
Net loss	(102,969)									(111,513)			8,544
Foreign currency translation	(1,652)					(77)					(1,575)
Distributions to joint venture partners	(12,479)									(4,808)			(7,671)
Ending Balance at Dec. 31, 2019	$ (256,359)			$ 15		$ 1,045,307				$ (429,117)	$ (54,643)	$ (844,442)	$ 26,521
Ending Balance (in shares) at Dec. 31, 2019				15,138