Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Fair Value, Liabilities Measured on a Recurring Basis, Unobservable Input Reconciliation) (Details)

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Fair Value Measurements (Fair Value, Liabilities Measured on a Recurring Basis, Unobservable Input Reconciliation) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair Value Disclosures [Abstract]      
Financial and Nonfinancial Liabilities, Fair Value Disclosure $ 1,032 $ 6,832 $ 0
Fair Value of consideration issued 0 6,500  
Accretion Expense 383 332  
contingent consideration yearly payment (2,583) 0  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings $ 3,600 $ 0 $ 0