Quarterly report pursuant to Section 13 or 15(d)

Business Acquisition Business Acquisition (Schedule of Identifiable Intangible Assets Acquired as Part of Business Combination) (Details)

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Business Acquisition Business Acquisition (Schedule of Identifiable Intangible Assets Acquired as Part of Business Combination) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-lived Intangible Assets Acquired $ 114,500
Minimum [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 1 year
Maximum [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 10 years
Trade Name [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Indefinite-lived Intangible Assets Acquired 88,000
Customer Relationships [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-lived Intangible Assets Acquired 23,000
Customer Relationships [Member] | Minimum [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 3 years
Customer Relationships [Member] | Maximum [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Estimated useful life 10 years
Order Backlog [Member]
  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-lived Intangible Assets Acquired $ 3,500
Estimated useful life 1 year