|
Unsecured Exchangeable Senior Notes (Narrative) (Details) (2.875% Exchangeable Senior Notes [Member], USD $)
|
0 Months Ended | 3 Months Ended | |||
|---|---|---|---|---|---|
|
Feb. 20, 2012
|
Feb. 15, 2012
|
Feb. 16, 2012
|
Mar. 31, 2012
|
Jan. 10, 2012
|
|
|
2.875% Exchangeable Senior Notes [Member]
|
|||||
| Debt Instrument [Line Items] | |||||
| Coupon/Stated Rate | 2.875% | ||||
| Debt instrument repurchase date by company | Feb. 15, 2012 | ||||
| Put Right expiration date | Feb. 08, 2012 | ||||
| Notes redemption date | Feb. 20, 2012 | ||||
| Debt instrument in connection with redemption last day to exchange notes | Feb. 16, 2012 | ||||
| Debt instrument redemption price percentage of principal | 100.00% | 100.00% | |||
| Amount paid for repurchase | $ 333,459,000 | $ 242,735,000 | |||