Goodwill and Intangible Assets - Finite-lived Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Intangible Assets
Carrying Value	$ 61,307	$ 61,307	$ 61,853
Accumulated Amortization	(47,242)	(45,483)	(44,251)
Net	14,065	15,824	17,602
Good Sam Services and Plans \| Membership, customer lists and other
Intangible Assets
Carrying Value	9,194	9,194	9,740
Accumulated Amortization	(9,152)	(9,140)	(9,656)
Net	42	54	84
Good Sam Services and Plans \| Trademarks and trade names
Intangible Assets
Carrying Value	2,132	2,132	2,132
Accumulated Amortization	(592)	(521)	(450)
Net	1,540	1,611	1,682
Good Sam Services and Plans \| Websites and developed technology
Intangible Assets
Carrying Value	3,650	3,650	3,650
Accumulated Amortization	(2,447)	(2,169)	(1,891)
Net	1,203	1,481	1,759
RV and Outdoor Retail \| Customer lists, domain names and other
Intangible Assets
Carrying Value	4,154		4,154
Accumulated Amortization	(3,353)		(2,952)
Net	801		1,202
RV and Outdoor Retail \| Customer lists and domain names
Intangible Assets
Carrying Value		4,154
Accumulated Amortization		(3,152)
Net		1,002
RV and Outdoor Retail \| Supplier lists and agreements
Intangible Assets
Carrying Value	9,500	9,500	9,500
Accumulated Amortization	(1,930)	(1,484)	(1,039)
Net	7,570	8,016	8,461
RV and Outdoor Retail \| Trademarks and trade names
Intangible Assets
Carrying Value	26,526	26,526	26,526
Accumulated Amortization	(24,015)	(23,345)	(22,675)
Net	2,511	3,181	3,851
RV and Outdoor Retail \| Websites and developed technology
Intangible Assets
Carrying Value	6,151	6,151	6,151
Accumulated Amortization	(5,753)	(5,672)	(5,588)
Net	$ 398	$ 479	$ 563