XML 39 R56.htm IDEA: XBRL DOCUMENT v2.4.0.8
Financial Instruments - Debt Instruments with Carrying Values Different than Estimated Fair Values (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Fair Value Disclosures [Abstract]    
Senior notes, Carrying Amount $ 2,757,007 $ 2,754,120
Revolving Credit Facilities and term loans, Carrying Amount 778,318 779,133
Mortgage indebtedness, Carrying Amount 1,708,591 1,761,421
Total indebtedness 5,243,916 5,294,674
Senior notes, Fair Value 3,027,362 2,991,698
Revolving Credit Facilities and term loans, Fair Value 787,262 787,772
Mortgage indebtedness, Fair Value 1,740,169 1,779,375
Long-term debt, Fair Value Total $ 5,554,793 $ 5,558,845