Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies- Accounts Receivable (Details)

v3.3.0.814
Summary of Significant Accounting Policies- Accounts Receivable (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Changes in the Allowance for Doubtful Accounts [Roll Forward]    
Allowance for doubtful accounts, beginning of period $ 2,851 $ 1,519
Charges to costs and expenses 239 1,253
Account write-offs and other (295) (674)
Allowance for doubtful accounts, end of period $ 2,795 $ 2,098
Minimum    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable Retainage 5.00%  
Maximum    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable Retainage 10.00%