XML 96 R80.htm IDEA: XBRL DOCUMENT v3.6.0.2
Valuation and Qualifying Accounts Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Allowance for Doubtful Accounts [Member]        
Movement in Valuation Allowances and Reserves [Roll Forward]        
Valuation Allowances and Reserves, Balance     $ 514 $ 910
Valuation Allowances and Reserves, Charged to Cost and Expense $ (380) $ (426)    
Valuation Allowances and Reserves, Charged to Other Accounts   0    
Valuation Allowances and Reserves, Deductions $ (27) (30)    
Valuation Allowance of Deferred Tax Assets [Member]        
Movement in Valuation Allowances and Reserves [Roll Forward]        
Valuation Allowances and Reserves, Balance     $ 3,911  
Valuation Allowances and Reserves, Charged to Cost and Expense   (473)    
Valuation Allowances and Reserves, Charged to Other Accounts   $ 40