Business Combination (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
Apr. 01, 2012
Business Combination (Textual) [Abstract]
Acquisition date	January 3, 2012
Acquisition-related costs recognized	$ 8.3
Gain recognized from re-measurement of pre-acquisition equity interest to estimated fair value	5.8
Griffin Project [Member]
Business Acquisition [Line Items]
Expected costs to complete	28
Anticipated completion date of Griffin project	2013
Revenue from Griffin project is expected through	2018
SandForce Acquisition [Member]
Business Acquisition [Line Items]
Revenue contribution of acquired company since date of acquisition	31.8
Selling, general and administrative expenses related to accelerated vesting of stock options	$ 4.5
Minimum [Member]
Business Acquisition [Line Items]
Discount rate applied to project	12.90%
Maximum [Member]
Business Acquisition [Line Items]
Discount rate applied to project	17.90%

Anticipated completion date of project.

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- Definition

Discount rate on project.

+ References

No definition available.

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- Definition

Expected cost of project.

+ References

No definition available.

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- Definition

Gain of re-measuring pre-acquisition equity interest to fair value.

+ References

No definition available.

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- Definition

Revenues for project is expected to extend through.

+ References

No definition available.

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- Definition

Selling general and administrative expenses related to accelerated vesting of stock options.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 7

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Acquisition Date

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 59

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Accounting Standards Codification

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 68

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