v3.8.0.1
Significant Accounting Policies - Schedule of Differences between Reported Amount and Reporting Currency Denominated Amount (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]    
Revenues $ 673,304 $ 389,330
Cost of Services (293,051) (179,835)
Operating Expenses (429,410) (246,660)
Loss from operations (49,157) (37,165)
Exchange Rate Effect    
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]    
Revenues 1,104 659
Cost of Services (2,131) (1,281)
Operating Expenses (19,068) (11,469)
Loss from operations (20,095) (12,091)
10% Stronger CAD Rate    
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]    
Revenues 674,408 389,989
Cost of Services (295,182) (181,116)
Operating Expenses (448,478) (258,129)
Loss from operations $ (69,252) $ (49,256)