|
Equity Equity, Textuals (Details) (USD $)
|
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Preferred Stock, Shares Authorized | 1,000,000 | 1,000,000 | ||
| Common Stock, Shares Authorized | 500,000,000 | 500,000,000 | 500,000,000 | |
| Common Stock, Shares, Outstanding | 222,955,853 | 222,955,853 | 241,035,250 | |
| Treasury Stock, Shares | 1,709,542 | 1,709,542 | 984,400 | |
| Treasury Stock, Shares, Acquired | 1,831,921 | 19,752,174 | 13,927,510 | |
| Treasury Stock, Value, Acquired, Par Value Method | $ 20,000,000 | $ 195,700,000 | $ 116,200,000 | |
| Treasury Stock Acquired, Average Cost Per Share | $ 10.90 | $ 9.91 | $ 8.34 | |
| Stock Repurchase Program, Authorization Increase | 116,600,000 | |||
| Stock Repurchase Program, Remaining Authorized Repurchase Amount | 199,400,000 | 99,600,000 | ||
| Dividends declared per share | $ 0.05 | $ 0.20 | $ 0.16 | $ 0.16 |
| Dividends, Common Stock, Cash | 11,000,000 | |||
| Payments of Dividends, Common Stock | $ 44,795,000 | $ 40,001,000 | $ 40,195,000 | |