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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segment Reporting (Narrative) (Details) $ in Millions	12 Months Ended
Segment Reporting (Narrative) (Details) $ in Millions	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019
Segment Reporting Information
Number of reportable segments \| segment	2
Int'l
Segment Reporting Information
Long-lived assets \| $	$ 454.5	$ 306.8
Product Concentration Risk \| Aftermarket Segment \| Net sales
Segment Reporting Information
Consolidated risk, percentage	19.00%	22.00%	12.00%
Product Concentration Risk \| OEM Segment \| Net sales
Segment Reporting Information
Consolidated risk, percentage	81.00%	78.00%	88.00%
Product Concentration Risk \| Travel Trailer and Fifth Wheels \| Net sales
Segment Reporting Information
Consolidated risk, percentage	63.00%	61.00%	61.00%
Customer Concentration Risk \| Net sales \| Thor Industries, Inc.
Segment Reporting Information
Consolidated risk, percentage	23.00%	21.00%	27.00%
Customer Concentration Risk \| Net sales \| Berkshire Hathaway Inc.
Segment Reporting Information
Consolidated risk, percentage	20.00%	19.00%	21.00%
Customer Concentration Risk \| Accounts Receivable \| Berkshire Hathaway Inc.
Segment Reporting Information
Consolidated risk, percentage	14.00%