Quarterly report pursuant to Section 13 or 15(d)

Debt - Summary of Notes Payable (Detail)

v3.5.0.2
Debt - Summary of Notes Payable (Detail) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Total, Notes payable $ 2,552 $ 4,514
Notes Payable    
Debt Instrument [Line Items]    
Principal on fixed rate notes, interest rate 5.00% 5.00%
Variable rate notes issued for redemption of partners' interests, reference rate Prime  
Variable rate notes issued for redemption of partners' interests, spread 1.00% 1.00%
Principal on fixed rate notes, amount $ 1,633 $ 2,639
Variable rate notes issued for redemption of partners' interests, amount 894 1,789
Interest payable $ 25 $ 86