Acquisitions - Assets (Liabilities) Acquired (Assumed) at Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Tangible assets (liabilities) acquired (assumed):
Goodwill	$ 731,015	$ 655,744	$ 711,222	$ 622,423
Application of deposit paid in prior period	(8,873)	0
Cash paid for acquisitions, net of cash acquired	62,323	74,414
2024 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Accounts receivable, net	4
Inventories, net	39,439
Prepaid expenses and other assets	0
Property and equipment, net	296
Operating lease assets	15,328
Accounts payable	(5)
Accrued liabilities	(35)
Current portion of operating lease liabilities	(1,112)
Other current liabilities	(22)
Operating lease liabilities, net of current portion	(14,216)
Total tangible net assets acquired	39,677
Total intangible assets acquired	3,195
Goodwill	28,692
Purchase price of acquisitions	71,564
Application of deposit paid in prior period	(8,873)
Contingent consideration	(368)
Cash paid for acquisitions, net of cash acquired	62,323
Inventory purchases financed via floor plan	(49,162)
Cash payment net of floor plan financing	13,161
2024 Acquisitions | Supplier And customer relationships
Tangible assets (liabilities) acquired (assumed):
Total intangible assets acquired	2,595
2024 Acquisitions | Websites and developed technology
Tangible assets (liabilities) acquired (assumed):
Total intangible assets acquired	600
2023 Acquisitions
Tangible assets (liabilities) acquired (assumed):
Accounts receivable, net		0
Inventories, net		40,391
Prepaid expenses and other assets		144
Property and equipment, net		746
Operating lease assets		916
Accounts payable		0
Accrued liabilities		0
Current portion of operating lease liabilities		(208)
Other current liabilities		(188)
Operating lease liabilities, net of current portion		(708)
Total tangible net assets acquired		41,093
Total intangible assets acquired		0
Goodwill		33,321
Purchase price of acquisitions		74,414
Application of deposit paid in prior period		0
Contingent consideration		0
Cash paid for acquisitions, net of cash acquired		74,414
Inventory purchases financed via floor plan		(31,188)
Cash payment net of floor plan financing		43,226
2023 Acquisitions | Supplier And customer relationships
Tangible assets (liabilities) acquired (assumed):
Total intangible assets acquired		0
2023 Acquisitions | Websites and developed technology
Tangible assets (liabilities) acquired (assumed):
Total intangible assets acquired		0
RV and Outdoor Retail
Tangible assets (liabilities) acquired (assumed):
Goodwill	$ 705,220	$ 631,510	$ 686,988	$ 598,189