Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Recent Accounting Pronouncement) (Details)

v3.6.0.2
Summary of Significant Accounting Policies (Recent Accounting Pronouncement) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Current assets $ 113,084 $ 111,713
Current liabilities $ 155,954 117,521
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)