|
Financial Instruments and Fair Value Measurements (Details 2) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Fair value of financial instruments | ||
| Debt | $ 11,382,408 | $ 6,506,029 |
| Fair values | 11,898,997 | 6,860,092 |
|
Credit Facilities [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 936,796 | 520,141 |
| Fair values | 940,334 | 526,684 |
|
Senior Debt [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 4,772,607 | 3,195,724 |
| Fair values | 5,038,678 | 3,403,353 |
|
Exchangeable senior notes [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 1,315,448 | 1,521,568 |
| Fair values | 1,431,805 | 1,591,976 |
|
Secured mortgage debt [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 1,725,773 | 1,249,729 |
| Fair values | 1,861,261 | 1,320,084 |
|
Secured mortgage debt of consolidated investees [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 1,468,637 | |
| Fair values | 1,486,040 | |
|
Other debt of consolidated investees [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 775,763 | |
| Fair values | 751,075 | |
|
Other debt [Member]
|
||
| Fair value of financial instruments | ||
| Debt | 387,384 | 18,867 |
| Fair values | $ 389,804 | $ 17,995 |