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Nature of Operations, Accounting Policies of Consolidated Financial Statements - Additional Information (Detail) (USD $)
 6 Months Ended
Nov. 30, 2013
Vehicle
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Number of sale of idle recreational vehicle facilities 2
Allowance for credit losses of notes receivable $ 0
Impairment of long - lived assets $ 0
Home Sales [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Product warranty 15 months
Recreational Vehicles [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Product warranty 1 year
Building and Building Improvements [Member] | Minimum [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment 10 years
Building and Building Improvements [Member] | Maximum [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment 30 years
Other Machinery and Equipment [Member] | Minimum [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment 5 years
Other Machinery and Equipment [Member] | Maximum [Member]
  
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]  
Estimated useful lives of property, plant and equipment 8 years