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Acquisition (Narrative) (Details) (USD $)
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3 Months Ended | 12 Months Ended | 0 Months Ended | ||||||
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Nov. 30, 2011
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Nov. 30, 2010
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Aug. 31, 2011
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Aug. 31, 2011
Trade Names [Member]
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Aug. 31, 2011
Patents And Technologies [Member]
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Aug. 31, 2011
Customer Relationships [Member]
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Aug. 31, 2011
Non-Compete Agreements [Member]
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Dec. 10, 2010
Mastervolt International Holding B.V. [Member]
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Jun. 02, 2011
Weasler Engineering, Inc. [Member]
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| Business Acquisition [Line Items] | |||||||||
| Number of acquisitions completed | 2 | ||||||||
| Cash paid for business acquisitions, net of cash acquired | $ 290,000 | $ 326,000 | $ 158,200,000 | $ 153,200,000 | |||||
| Recognition of goodwill due to acquisition | 154,700,000 | ||||||||
| Recognition of intangible assets due to acquisition | 157,500,000 | 69,900,000 | 5,500,000 | 81,500,000 | 600,000 | ||||
| Purchase accounting adjustments | (1,166,000) | ||||||||
| Reduction of initial estimated warranty reserve | 5,700,000 | ||||||||
| Transaction costs related to business acquisition activities | $ 300,000 | $ 600,000 | |||||||
| X | ||||||||||
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- Definition
Reduction of initial estimated warranty reserve No definition available.
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| X | ||||||||||
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- Definition
Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of businesses acquired by the entity during the period. No definition available.
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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