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
Jun. 30, 2013
Dec. 31, 2012
Receivables [Abstract]    
Management and advisory fees receivable $ 1,586 $ 1,815
Unbilled receivables 1,852 1,787
Other receivables 92 435
Receivables 3,530 4,037
Allowance for doubtful receivables (329) (362)
Receivables, net $ 3,201 $ 3,675