Acquisitions and Purchase Accounting - Armor Inox Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Dec. 21, 2011 Armor Inox [Member]	Dec. 21, 2011 Armor Inox [Member] as initially reported [Member]	Dec. 21, 2011 Armor Inox [Member] Measurement Period Adjustments [Member]
Business Acquisition [Line Items]
Cash				$ 18,201	$ 18,201	$ 0
Current assets				13,654	14,612	(958)
Property, plant and equipment				1,571	941	630
Goodwill	526,011	477,812	369,989	26,135	23,789	2,346
Other intangibles				9,420	12,155	(2,735)
Other assets				25	25	0
Current liabilities				(18,626)	(18,440)	(186)
Long-term deferred tax liability				(3,072)	(3,975)	903
Other non-current liabilities				(450)	(450)	0
Net assets acquired and liabilities assumed				$ 46,858	$ 46,858	$ 0

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Net amount recognized for aggregate assets, including goodwill, in excess of or less than the aggregate liabilities assumed (also referred to as net assets acquired). This amount may also be viewed as incremental amount of equity that the consolidated entity (including the portion attributable to a noncontrolling interest) will recognize as a result of the business combination.

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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