Quarterly report pursuant to Section 13 or 15(d)

Allowance for Bad Debts (Detail)

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Allowance for Bad Debts (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2015
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]  
Allowance for doubtful accounts $ 516
Additions 455
Write-offs (124)
Allowance for doubtful accounts $ 847