Goodwill and Intangible Assets - Finite-lived Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Intangible Assets
Cost or Fair Value		$ 55,069	$ 59,227	$ 59,086
Accumulated Amortization		(40,041)	(38,282)	(36,143)
Net		15,028	20,945	22,943
Good Sam services and plans | Membership, customer lists and other
Intangible Assets
Cost or Fair Value		9,640	9,640	9,640
Accumulated Amortization		(9,110)	(8,971)	(8,817)
Net		530	669	823
Good Sam services and plans | Trademarks and trade names
Intangible Assets
Cost or Fair Value		2,132	2,132	2,132
Accumulated Amortization		(166)	(95)	(24)
Net		1,966	2,037	2,108
Good Sam services and plans | Websites
Intangible Assets
Cost or Fair Value		3,050	3,050	3,050
Accumulated Amortization		(900)	(682)	(441)
Net		2,150	2,368	2,609
RV and Outdoor Retail | Customer lists, domain names and other
Intangible Assets
Cost or Fair Value		5,268
Accumulated Amortization		(2,936)
Net		2,332
RV and Outdoor Retail | Customer lists and domain names
Intangible Assets
Cost or Fair Value			5,626	5,626
Accumulated Amortization			(2,880)	(2,590)
Net			2,746	3,036
RV and Outdoor Retail | Supplier Lists
Intangible Assets
Cost or Fair Value		1,696	1,696	1,696
Accumulated Amortization		(933)	(763)	(594)
Net		763	933	1,102
RV and Outdoor Retail | Trademarks and trade names
Intangible Assets
Cost or Fair Value		27,251	29,564	29,564
Accumulated Amortization		(20,494)	(19,691)	(19,013)
Net		6,757	9,873	10,551
Incremental accelerated amortization expense	$ 8,800
RV and Outdoor Retail | Websites
Intangible Assets
Cost or Fair Value		6,032	7,519	7,378
Accumulated Amortization		(5,502)	(5,200)	(4,664)
Net		$ 530	$ 2,319	$ 2,714