Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.8.0.1
Commitments and Contingencies (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2017
USD ($)
item
Dec. 31, 2016
USD ($)
Number of previous claims experienced | item 0  
Future minimum unconditional purchase obligations    
Net sales and use tax liability $ 7,962  
Sales and use tax liability 12,914 $ 10,108
Sales and use tax receivable 4,952 $ 3,879
Prepaid expense and other current assets    
Future minimum unconditional purchase obligations    
Sales and use tax receivable 4,952  
Accounts Payable and Accrued Liabilities    
Future minimum unconditional purchase obligations    
Sales and use tax liability $ 12,914