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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Loss Contingencies [Line Items]        
Loss contingency, amount $ 28,000   $ 28,000  
Rent expense 1,900 $ 1,900 5,600 $ 6,500
Operating Leases, Future Minimum Payments Due, Rolling Maturity [Abstract]        
2017 (remaining three months) 1,828   1,828  
2018 7,127   7,127  
2019 7,046   7,046  
2021 7,060   7,060  
2020 7,251   7,251  
Thereafter 79,084   79,084  
Total minimum annual rental commitments 109,396   109,396  
Accounts payable, accrued expenses and other liabilities        
Loss Contingencies [Line Items]        
Loss contingency accrual 28,000   28,000  
Accounts receivable        
Loss Contingencies [Line Items]        
Loss contingency, receivable $ 28,000   $ 28,000