Restructuring and Long-lived Asset Impairment (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended
	Sep. 30, 2019 location	Dec. 31, 2019 USD ($) location	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) location	Dec. 31, 2019 USD ($) location	Dec. 31, 2020 USD ($)	Jun. 30, 2020 item	Sep. 03, 2019 item location
2019 Strategic Shift
Number of Outdoor Lifestyle Locations | location		37		37	37
Number of outdoor lifestyle locations previously closed or not opened | location		5		5	5
Number of locations closed | location	3	31			50
Number of outdoor lifestyle locations that remained open | location					2
Number of specialty retail locations that remained open | location					6
Gain on lease termination.					$ 686
Restructuring Costs
Charged to expense		$ 19,500	$ 27,700
Long-lived Asset Impairment
Number of locations with impaired long-lived assets | location		53		53	53
Long-lived asset impairment		$ 16,300	$ 50,000		$ 66,270
Leasehold improvements
Long-lived Asset Impairment
Long-lived asset impairment					20,800
Furniture and equipment
Long-lived Asset Impairment
Long-lived asset impairment					28,600
Operating lease right-of-use assets
Long-lived Asset Impairment
Long-lived asset impairment					16,900
Selling, general, and administrative
Restructuring Costs
Charged to expense					3,700
Costs applicable to revenue
Restructuring Costs
Charged to expense					$ 600
TheHouse.com
2019 Strategic Shift
Number of Outdoor Lifestyle Locations | location		7		7	7			7
2019 Strategic Shift
2019 Strategic Shift
Number of distribution centers to be closed | item								1
Gain on lease termination.					$ 1,300
Restructuring Costs
Charged to expense					47,278
Total restructuring costs excluding lease termination costs					47,223
Long-lived Asset Impairment
Long-lived asset impairment					57,400
2019 Strategic Shift | Forecast
2019 Strategic Shift
Number of distribution centers to be closed | item							2
2019 Strategic Shift | Labor, lease and other operating expenses
2019 Strategic Shift
Expected incurred costs		$ 4,300		$ 4,300	4,300
2019 Strategic Shift | Labor, lease and other operating expenses | Minimum | Forecast
2019 Strategic Shift
Expected incurred costs						$ 15,700
2019 Strategic Shift | Labor, lease and other operating expenses | Maximum | Forecast
2019 Strategic Shift
Expected incurred costs						$ 20,700
2019 Strategic Shift | One-time termination benefits
Restructuring Costs
Charged to expense				1,008
Paid or otherwise settled				(286)
Ending balance		722		722	722
2019 Strategic Shift | One-time termination benefits | Minimum
2019 Strategic Shift
Expected incurred costs		1,000		1,000	1,000
2019 Strategic Shift | One-time termination benefits | Maximum
2019 Strategic Shift
Expected incurred costs		1,500		1,500	1,500
2019 Strategic Shift | Incremental inventory reserve charges
2019 Strategic Shift
Expected incurred costs		41,900		41,900	41,900
2019 Strategic Shift | Lease Termination Costs
Restructuring Costs
Charged to expense				1,350
Paid or otherwise settled				(1,350)
2019 Strategic Shift | Lease Termination Costs | Minimum
2019 Strategic Shift
Expected incurred costs		15,000		15,000	15,000
2019 Strategic Shift | Lease Termination Costs | Maximum
2019 Strategic Shift
Expected incurred costs		20,000		20,000	20,000
2019 Strategic Shift | Other associated costs
Restructuring Costs
Charged to expense				4,321	4,321
Paid or otherwise settled				(4,036)
Ending balance		285		285	285
2019 Strategic Shift | Other associated costs | Minimum
2019 Strategic Shift
Expected incurred costs		20,000		20,000	20,000
2019 Strategic Shift | Other associated costs | Maximum
2019 Strategic Shift
Expected incurred costs		25,000		25,000	25,000
2019 Strategic Shift | Restructuring costs excluding incremental inventory reserve charges
Restructuring Costs
Charged to expense				6,679
Paid or otherwise settled				(5,672)
Ending balance		$ 1,007		$ 1,007	1,007
2019 Strategic Shift | Selling, general, and administrative | One-time termination benefits
Restructuring Costs
Charged to expense					1,008
2019 Strategic Shift | Costs applicable to revenue | Incremental inventory reserve charges
Restructuring Costs
Charged to expense					41,894
2019 Strategic Shift | Lease termination charges | Lease Termination Costs
Restructuring Costs
Charged to expense					$ 55
2019 Strategic Shift | TheHouse.com
2019 Strategic Shift
Number of locations that will be restructured | location								1