Segment Data and Disaggregated Revenue - Net Revenues By Product Category and Distribution Channel (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Net revenues	$ 707,640	$ 1,191,729	$ 1,637,880	$ 2,396,451
Connected Fitness
Segment Reporting Information [Line Items]
Revenues	32,912	31,935	65,706	62,039
Net revenues	32,912	31,935	65,706	62,039
Corporate Other
Segment Reporting Information [Line Items]
Net revenues	1,489	4,420	3,277	8,212
Wholesale
Segment Reporting Information [Line Items]
Revenues	299,182	707,388	890,954	1,525,319
Direct to Consumer
Segment Reporting Information [Line Items]
Revenues	367,869	422,678	651,820	753,916
Apparel
Segment Reporting Information [Line Items]
Revenues	425,858	739,736	1,024,145	1,514,366
Footwear
Segment Reporting Information [Line Items]
Revenues	185,089	284,080	394,777	576,627
Accessories
Segment Reporting Information [Line Items]
Revenues	56,104	106,250	123,852	188,242
Net Sales
Segment Reporting Information [Line Items]
Revenues	667,051	1,130,066	1,542,774	2,279,235
License revenues
Segment Reporting Information [Line Items]
Revenues	$ 6,188	$ 25,308	$ 26,123	$ 46,965