Quarterly report pursuant to sections 13 or 15(d)

Receivables, Net - Summary of Receivables (Detail)

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Receivables, Net - Summary of Receivables (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Accounts Notes And Loans Receivable [Line Items]    
Management and advisory fees receivable $ 1,785 $ 1,815
Unbilled receivables 2,383 1,787
Other receivables 92 435
Receivables 4,260 4,037
Allowance for doubtful receivables (330) (362)
Receivables, net $ 3,930 $ 3,675