Business acquisition purchase price allocation adjustments to reflect finalization of tax indemnification matters resulting in increase to net taxes payable and goodwill.

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The calculated weighted-average amortization period of a major class of finite-lived intangible assets acquired during the current period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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Amount of cash paid to acquire the entity.

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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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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The amount of acquisition cost of a business combination allocated to capital lease obligations assumed from the acquired entity.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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The average useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.

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Acquisition (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended				3 Months Ended		3 Months Ended
	Sep. 16, 2010 Towable Holdings, Inc. [Member]	Oct. 31, 2011 Towable Holdings, Inc. [Member]	Jul. 31, 2011 Towable Holdings, Inc. [Member]	Oct. 31, 2010 Towable Holdings, Inc. [Member]	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member]	Sep. 16, 2010 Heartland Recreational Vehicles, LLC [Member]	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member] Trademarks [Member] years	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member] Design Technology Assets [Member] years	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member] Non-Compete Agreements [Member] years	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member] Backlog [Member] weeks	Oct. 31, 2011 Heartland Recreational Vehicles, LLC [Member] Dealer Networks [Member] years
Business Acquisition [Line Items]
Cash paid for acquisition	$ 99,562	$ 170	$ 99,732
Shares issued of unregistered common stock	4,300,000
Value of shares issued of unregistered common stock	90,531
Acquisition, transaction costs				1,796
Business acquisition purchase price allocation adjustments to reflect finalization of indemnification matters resulting in increase to goodwill					757
Weighted average useful life on amortized intangible assets, years					14.9
Amortization period, Minimum years								10
Amortization period, Maximum years								15
Amortizable intangible assets being amortized using straight line method							25		5	3	12
Goodwill acquired that remains deductible for tax purposes					11,600
Capital lease obligations assumed						$ 429