Acquisitions (Subsequent Events) (Details) (Subsequent Event [Member], Framehawk, Inc. [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Jan. 08, 2014
Subsequent Event [Member] \| Framehawk, Inc. [Member]
Subsequent Event [Line Items]
Preliminary consideration in business acquisition	$ 27.9
Cash acquired from the acquisition	0.3
Estimated acquisition transaction costs	$ 0.1

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Section 30

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

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