Quarterly report pursuant to sections 13 or 15(d)

Notes Receivable from Partners - Schedule of Notes Receivable from Partners (Detail)

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Notes Receivable from Partners - Schedule of Notes Receivable from Partners (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Accounts Notes And Loans Receivable [Line Items]    
Repayment of notes $ (629)  
Partners
   
Accounts Notes And Loans Receivable [Line Items]    
Beginning balance 3,052 3,410
Repayment of notes (629) (887)
Interest accrued and capitalized on notes receivable 19 74
New notes receivable issued to partners   455
Ending balance $ 2,442 $ 3,052