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Accounting Policies and Basis of Presentation - Debt (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 0 Months Ended 15 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Feb. 12, 2014
Wells Fargo Bank [Member]
Jun. 30, 2014
Wells Fargo Bank [Member]
Sep. 30, 2014
Revolver borrowings [Member]
Aug. 05, 2014
Fixed asset sub-line term loan [Member]
Sep. 30, 2014
Fixed asset sub-line term loan [Member]
Line of Credit Facility [Line Items]              
Maximum governance expenses included in EBITA     $ 5,500        
Settlement expense       5,465      
Debt obligations transferred to sub-line term loan           7,004  
Loan fees incurred with borrowings (66) 0          
Outstanding borrowings under credit facility 12,656       5,736   6,920
Credit facility, remaining borrowing capacity $ 36,929            
Average interest rate 2.57%