|
Gross Real Estate and Loan Activity (Parenthetical) (Detail) (USD $)
|
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
|
| Investments in and Advances to Affiliates, Schedule of Investments [Abstract] | ||
| Accumulated depreciation and amortization associated with dispositions of real estate | $ 8,200,000 | |
| Gain on debt extinguishment | $ 1,028,000 | $ (32,522,000) |