Annual report pursuant to section 13 and 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) (Partners, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Partners
   
Accounts Notes And Loans Receivable [Line Items]    
Beginning balance $ 3,410 $ 6,024
Repayment of notes (887) (2,864)
Interest accrued and capitalized on notes receivable 74 138
New notes receivable issued to partners 455 112
Ending balance $ 3,052 $ 3,410