|
Financial Instruments and Fair Value Measurements (Details 1) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Fair value of financial instruments | ||
| Debt | $ 12,433,585 | $ 11,382,408 |
| Fair Value of Debt | 13,214,101 | 11,870,435 |
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Credit Facilities [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 1,138,414 | 936,796 |
| Fair Value of Debt | 1,143,735 | 940,334 |
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Senior notes [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 4,684,152 | 4,772,607 |
| Fair Value of Debt | 5,201,866 | 5,038,678 |
|
Exchangeable senior notes [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 877,776 | 1,315,448 |
| Fair Value of Debt | 994,694 | 1,431,805 |
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Secured mortgage debt [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 3,115,437 | 1,699,363 |
| Fair Value of Debt | 3,248,920 | 1,832,931 |
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Secured mortgage debt of consolidated entities [Member]
|
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| Fair value of financial instruments | ||
| Debt | 1,366,837 | 1,495,047 |
| Fair Value of Debt | 1,361,701 | 1,485,808 |
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Other debt of consolidated entities [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 602,938 | 775,763 |
| Fair Value of Debt | 612,456 | 751,075 |
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Other debt [Member]
|
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| Fair value of financial instruments | ||
| Debt | 648,031 | 387,384 |
| Fair Value of Debt | $ 650,729 | $ 389,804 |