Segments Information - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Segments Information
Assets	$ 4,657,259	$ 4,800,147	$ 4,511,386
Operating Segments
Segments Information
Assets	4,475,448	4,579,195	4,244,486
Corporate, Non-Segment
Segments Information
Assets	181,811	220,952	266,900
Good Sam Services and Plans | Operating Segments
Segments Information
Assets	91,887	130,841	93,539
RV and Outdoor Retail | Operating Segments
Segments Information
Assets	$ 4,383,561	$ 4,448,354	$ 4,150,947