Segment Information - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Segments Information
Assets	$ 4,511,386	$ 4,372,929
Operating Segments
Segments Information
Assets	4,244,486	4,008,205
Corporate, Non-Segment
Segments Information
Assets	266,900	364,724
Good Sam Services and Plans | Operating Segments
Segments Information
Assets	93,539	158,988
RV and Outdoor Retail | Operating Segments
Segments Information
Assets	$ 4,150,947	$ 3,849,217