Annual report pursuant to Section 13 and 15(d)

Summary of Activity for Each of Investments (Parenthetical) (Detail)

v3.3.1.900
Summary of Activity for Each of Investments (Parenthetical) (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Schedule of Equity Method Investments [Line Items]  
Proceeds from sale of investment in joint venture $ 2,634
Gain (loss) on sale of assets and other $ 1,251