Annual report pursuant to section 13 and 15(d)

Acquisitions (Contingent Consideration at Carrying Value) (Details)

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Acquisitions (Contingent Consideration at Carrying Value) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Nov. 04, 2011
Business Combinations [Abstract]        
Fair value of contingent consideration, beginning balance $ 812 $ 7,111   $ 7,111
Change in fair value of contingent consideration 121 (7,111) 0  
Payments (344)      
Fair value of contingent consideration, ending balance $ 589 $ 812 $ 7,111 $ 7,111