Goodwill and Other Intangible Assets - Intangible Assets, Net (Details) (USD $) In Thousands, unless otherwise specified					6 Months Ended			6 Months Ended				6 Months Ended	12 Months Ended
Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Customer Relationships [Member]	Dec. 31, 2013 Customer Relationships [Member]	Jun. 30, 2014 Customer Relationships [Member] Minimum [Member]	Jun. 30, 2014 Customer Relationships [Member] Maximum [Member]	Jun. 30, 2014 Acquired technology [Member]	Dec. 31, 2013 Acquired technology [Member]	Jun. 30, 2014 Acquired technology [Member] Minimum [Member]	Jun. 30, 2014 Acquired technology [Member] Maximum [Member]	Jun. 30, 2014 Patents [Member]	Dec. 31, 2013 Patents [Member]	Jun. 30, 2014 Trade Names [Member]	Dec. 31, 2013 Trade Names [Member]	Jun. 30, 2014 Trade Names [Member] Minimum [Member]	Jun. 30, 2014 Trade Names [Member] Maximum [Member]	Dec. 31, 2013 Noncompete Agreements [Member]	Jun. 30, 2014 Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 90,813	$ 90,753	$ 54,730	$ 54,730			$ 27,580	$ 27,580			$ 1,613	$ 1,493	$ 6,890	$ 6,890			$ 60	$ 0
Finite-Lived Intangible Assets, Accumulated Amortization	11,252	9,151	6,314	5,236			3,333	2,598			319	254	1,286	1,003			60	0
Finite-Lived Intangible Assets, Net	$ 79,561	$ 81,602	$ 48,416	$ 49,494			$ 24,247	$ 24,982			$ 1,294	$ 1,239	$ 5,604	$ 5,887			$ 0	$ 0
Finite-Lived Intangible Asset, Useful Life					5 years	30 years			3 years	20 years	20 years				3 years	12 years	3 years

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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