Annual report pursuant to Section 13 and 15(d)

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

v3.3.1.900
Notes Receivable from Partners - Schedule of Notes Receivable from Partners (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accounts Notes And Loans Receivable [Line Items]      
Interest accrued and capitalized on notes receivable $ 66 $ 61 $ 82
New notes receivable issued to partners   940 455
Partners      
Accounts Notes And Loans Receivable [Line Items]      
Beginning balance 3,212 3,052  
Repayment of notes (489) (841)  
Interest accrued and capitalized on notes receivable 66 61  
New notes receivable issued to partners   940  
Ending balance $ 2,789 $ 3,212 $ 3,052