Segments Information - Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Segments Information
Assets	$ 4,962,108	$ 4,845,684	$ 4,803,093
Operating Segments
Segments Information
Assets	4,781,275	4,681,991	4,630,893
Corporate and Reconciling Items [Member]
Segments Information
Assets	180,833	163,693	172,200
Good Sam Services and Plans | Operating Segments
Segments Information
Assets	87,570	113,619	92,453
RV and Outdoor Retail | Operating Segments
Segments Information
Assets	$ 4,693,705	$ 4,568,372	$ 4,538,440