Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.4.0.3
Basis of Presentation (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Feb. 05, 2016
Dec. 31, 2015
Sep. 01, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Shares authorized for repurchase   2,000,000    
Remaining shares authorized for repurchase 2,000,000      
Current assets $ 94,885   $ 111,713  
Current liabilities $ 102,631   117,521  
Non-current deferred tax assets     2,688  
ASU-Interest Imputation | Scenario, Adjustment        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Current assets     (1,936)  
Current liabilities     (1,936)  
Noncurrent assets     (7,380)  
Noncurrent liabilities     (7,380)  
ASU-Classification of Deferred Taxes | Adjustments for New Accounting Principle, Early Adoption        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Current deferred tax assets     (4,654)  
Non-current deferred tax assets     $ 4,654  
ERS        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Ownership in non-wholly owned subsidiary (as a percent) 65.40%     54.80%