XML 32 R75.htm IDEA: XBRL DOCUMENT v2.4.0.8
Impairment Charges and Impairment of Joint Venture Investments - Impairment Charges Measured at Fair Value on Non-Recurring Basis (Detail) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Fair Value Measurements [Member]
Dec. 31, 2013
Fair Value Measurements [Member]
Sep. 30, 2014
Fair Value Measurements [Member]
Level 1 [Member]
Dec. 31, 2013
Fair Value Measurements [Member]
Level 1 [Member]
Sep. 30, 2014
Fair Value Measurements [Member]
Level 2 [Member]
Dec. 31, 2013
Fair Value Measurements [Member]
Level 2 [Member]
Sep. 30, 2014
Fair Value Measurements [Member]
Level 3 [Member]
Dec. 31, 2013
Fair Value Measurements [Member]
Level 3 [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]                        
Long-lived assets held and used and held for sale, Fair Value Measurements         $ 111,600,000 $ 164,200,000 $ 0 $ 0 $ 0 $ 0 $ 111,600,000 $ 164,200,000
Unconsolidated joint venture investments, Fair Value Measurements         26,800,000 35,300,000 0 0 0 0 26,800,000 35,300,000
Long-lived assets held and used and held for sale, Total Losses         27,000,000 72,600,000            
Joint venture investments $ 0 $ 0 $ 9,100,000 $ 0 $ 9,100,000 $ 1,000,000