Acquisitions - General Information (Details) $ in Thousands	1 Months Ended	9 Months Ended
	Oct. 31, 2022 store	Sep. 30, 2022 USD ($) location	Sep. 30, 2021 USD ($) location	Dec. 31, 2021 USD ($)
Acquisitions
Goodwill		$ 533,217		$ 483,634
RV and Outdoor Retail
Acquisitions
Goodwill		508,983		459,805
RV and Outdoor Retail | RV Dealership Groups
Acquisitions
Cash paid for acquisition		$ 79,800	$ 99,700
Number of locations acquired | location		5	12
Real properties purchased		$ 41,700	$ 61,100
Real properties purchased from parties related to the sellers of the dealership businesses		19,700	$ 31,400
RV and Outdoor Retail | RV Dealerships
Acquisitions
Number of locations acquired | store	5
RV and Outdoor Retail | RV Service Center
Acquisitions
Number of locations acquired | store	1
Good Sam Services and Plans
Acquisitions
Goodwill		24,234		$ 23,829
Good Sam Services and Plans | Outdoor Publication
Acquisitions
Cash paid for acquisition		$ 3,400