Annual report pursuant to Section 13 and 15(d)

Real Estate Dispositions Held for Sale and Impairment Charges - Components of Income from Real Estate and Related Assets Held for Sale (Parenthetical) (Detail)

v3.3.1.900
Real Estate Dispositions Held for Sale and Impairment Charges - Components of Income from Real Estate and Related Assets Held for Sale (Parenthetical) (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2015
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Real Estate [Abstract]        
Impairment charge $ 600 $ 14,000 $ 622 $ 14,238