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Schedule II - Valuation and Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Sep. 01, 2011
Allowance for doubtful accounts:
        
The roll forward of valuation accounts were as follows:        
Balance at beginning of period $ 1,637 $ 1,865 $ 1,034  
Charged to costs and expenses 126 1,582 1,500  
Deductions 935 1,810 669  
Balance at end of period 828 1,637 1,865  
Allowance for excess and obsolete inventory:
        
The roll forward of valuation accounts were as follows:        
Balance at beginning of period 7,656 4,390 4,084 4,390
Charged to costs and expenses 1,903 3,989 1,046  
Deductions 4,231 723 740  
Balance at end of period 5,328 7,656 4,390 4,390
Valuation allowance for deferred tax assets:
        
The roll forward of valuation accounts were as follows:        
Balance at beginning of period 34,278 938 875  
Charged to costs and expenses 1,556 33,340 63  
Deductions 0 0 0  
Balance at end of period $ 35,834 $ 34,278 $ 938