Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (PurOb) (Details)

v3.7.0.1
Commitments and Contingencies (PurOb) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
item
Dec. 31, 2016
USD ($)
Number of previous claims experienced | item 0  
Future minimum unconditional purchase obligations    
Net sales and use taxes $ 6,978  
Sales and use tax liability 11,348 $ 10,108
Sales and excise tax receivable 4,370 $ 3,879
Prepaid expense and other current assets    
Future minimum unconditional purchase obligations    
Sales and excise tax receivable 4,370  
Accrued Expenses and Other Liabilities    
Future minimum unconditional purchase obligations    
Sales and use tax liability $ 11,348