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 |