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Business Acquisition Expected Consideration.

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Expected Ownership After Acquisition.

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- Definition

Percentage of beneficial ownership interest after tender offer purchase.

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Per share price of shares purchased for acquisition.

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- Definition

The aggregate amount assigned to a major class of finite-lived intangible assets acquired 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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- Definition

Month, date and year in which the acquirer obtains control of the acquiree.

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-Glossary Acquisition Date

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- Definition

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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- Definition

Percentage of voting equity interests acquired in the business combination.

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Income (expense) and gain (loss) recognized from the settlement of a preexisting relationship between the acquirer and the acquiree.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Acquisitions (Details Textual) Share data in Millions, except Per Share data, unless otherwise specified	6 Months Ended						6 Months Ended
	Apr. 27, 2012 USD ($)	Apr. 27, 2012 International Mining Machinery Holdings Ltd. [Member] USD ($)	Apr. 29, 2011 International Mining Machinery Holdings Ltd. [Member] USD ($)	Dec. 29, 2011 International Mining Machinery Holdings Ltd. [Member] USD ($)	Dec. 29, 2011 International Mining Machinery Holdings Ltd. [Member] HKD	Jul. 11, 2011 International Mining Machinery Holdings Ltd. [Member]	Apr. 27, 2012 LeTourneau Technologies, Inc. [Member]
Acquisitions (Textual) [Abstract]
Effective date of acquisition		December 29, 2011					June 22, 2011
Number of shares purchased		534.8
Outstanding common stock acquired				69.20%	69.20%	41.10%
Number of shares purchased, value				$ 584,600,000
Per share price of shares purchased for acquisition					8.50
Gain on preexisting interest		19,400,000
Finite-lived intangible assets		1,100,000,000
Finite-lived intangible assets acquired as part of business combination		175,000,000
Acquisition cost		24,200,000	8,600,000
Percentage of beneficial ownership interest after tender offer purchase		98.90%
Expected Consideration	$ 16,300,000
Expected ownership after acquisition	100.00%