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Warranty - Additional Information (Detail) - USD ($)	Aug. 31, 2015	May. 31, 2015	Aug. 31, 2014	May. 31, 2014
Guarantor Obligations [Line Items]
Estimated warranty obligation	$ 6,882,000	$ 6,911,000	$ 5,661,000	$ 5,697,000
Recreational Vehicles [Member]
Guarantor Obligations [Line Items]
Estimated warranty obligation	$ 409,000

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No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 460



-SubTopic 10



-Section 50



-Paragraph 8



-Subparagraph ((c)(5))



-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 942



-SubTopic 210



-Section S99



-Paragraph 1



-Subparagraph (SX 210.9-03.15(5))



-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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