For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Segment Reporting (Narrative) (Details) $ in Millions	12 Months Ended
Segment Reporting (Narrative) (Details) $ in Millions	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022
Segment Reporting Information
Number of reportable segments \| segment	2
Int'l
Segment Reporting Information
Long-lived assets \| $	$ 361.8	$ 399.4
Product Concentration Risk \| Aftermarket Segment \| Net sales
Segment Reporting Information
Consolidated risk, percentage	24.00%	23.00%	17.00%
Product Concentration Risk \| OEM Segment \| Net sales
Segment Reporting Information
Consolidated risk, percentage	76.00%	77.00%	83.00%
Product Concentration Risk \| Travel Trailer and Fifth Wheels \| Net sales
Segment Reporting Information
Consolidated risk, percentage	53.00%	47.00%	61.00%
Customer Concentration Risk \| Net sales \| Thor Industries, Inc.
Segment Reporting Information
Consolidated risk, percentage	16.00%	16.00%	23.00%
Customer Concentration Risk \| Net sales \| Berkshire Hathaway Inc.
Segment Reporting Information
Consolidated risk, percentage	18.00%	15.00%	20.00%