Segments Information - Capital expenditures (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segments Information
Total capital expenditures	$ 29,562	$ 49,987	$ 65,597	$ 122,082
Good Sam Services and Plans \| Operating Segments
Segments Information
Total capital expenditures	4,517	2,213	9,156	5,118
RV and Outdoor Retail \| Operating Segments
Segments Information
Total capital expenditures	$ 25,045	$ 47,774	$ 56,441	$ 116,964

Amount of expenditure for addition to long-lived assets included in determination of segment assets by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Excludes expenditure for addition to financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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-Topic 270
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-Topic 280
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