Acquisitions - Assets (Liabilities) Acquired (Assumed) at Fair Value (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Tangible assets (liabilities) acquired (assumed):
Goodwill	$ 533,217		$ 483,634
Cash paid for acquisitions, net of cash acquired	83,227	$ 99,749
RV and Outdoor Retail
Tangible assets (liabilities) acquired (assumed):
Goodwill	508,983		459,805
RV and Outdoor Retail | 2022 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Accounts receivable, net	(68)
Inventories, net	30,828
Prepaid expenses and other assets	48
Property and equipment, net	206
Operating lease assets	739
Customer deposits	(77)
Accrued liabilities	75
Current portion of operating lease liabilities	(235)
Operating lease liabilities, net of current portion	(504)
Total tangible net assets acquired	31,012
Total tangible net assets acquired	2,632
Goodwill	49,583
Cash paid for acquisitions, net of cash acquired	83,227
Inventory purchases financed via floor plan	(19,971)
Cash payment net of floor plan financing	63,256
RV and Outdoor Retail | 2021 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Accounts receivable, net		615
Inventories, net		27,386
Prepaid expenses and other assets		126
Property and equipment, net		1,348
Operating lease assets		1,222
Customer deposits		(1,437)
Accrued liabilities		1,281
Current portion of operating lease liabilities		(195)
Operating lease liabilities, net of current portion		(1,027)
Total tangible net assets acquired		29,319
Total tangible net assets acquired		0
Goodwill		70,430
Cash paid for acquisitions, net of cash acquired		99,749
Inventory purchases financed via floor plan		(19,537)
Cash payment net of floor plan financing		$ 80,212
Good Sam Services and Plans
Tangible assets (liabilities) acquired (assumed):
Goodwill	$ 24,234		$ 23,829