Acquisitions - Assets (Liabilities) Acquired (Assumed) at Fair Value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tangible assets (liabilities) acquired (assumed):
Goodwill	$ 622,423	$ 483,634	$ 413,123
Cash paid for acquisitions, net of cash acquired	217,034	100,117	$ 47,571
RV and Outdoor Retail | 2022 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Net accounts receivable	(68)
Inventories, net	75,766
Prepaid expenses and other assets	207
Property and equipment, net	583
Operating lease assets	1,558
Accrued liabilities	(687)
Current portion of operating lease liabilities	(500)
Other current liabilities	(188)
Operating lease liabilities, net of current portion	(1,058)
Total tangible net assets acquired	75,613
Total intangible assets acquired	2,632
Goodwill	138,789
Cash paid for acquisitions, net of cash acquired	217,034
Inventory purchases financed via floor plan	(59,935)
Cash payment net of floor plan financing	$ 157,099
RV and Outdoor Retail | 2021 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Net accounts receivable		601
Inventories, net		27,746
Prepaid expenses and other assets		125
Property and equipment, net		1,348
Operating lease assets		1,222
Accrued liabilities		(214)
Current portion of operating lease liabilities		(195)
Other current liabilities		0
Operating lease liabilities, net of current portion		(1,027)
Total tangible net assets acquired		29,606
Total intangible assets acquired		0
Goodwill		70,511
Cash paid for acquisitions, net of cash acquired		100,117
Inventory purchases financed via floor plan		(19,537)
Cash payment net of floor plan financing		$ 80,580