XML 18 R48.htm IDEA: XBRL DOCUMENT
v2.3.0.15

Equity (Details 1) (USD $) In Thousands, except Per Share data | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Nov. 30, 2011 | Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010
Summary of Dividends paid |  |  |  |  |
Dividends declared per common share | $ 0.21 | $ 0.21 | $ 0.18 | $ 0.63 | $ 0.54
Total dividend paid |  |  |  | $ 71,856 |
First quarter dividend [Member] |  |  |  |  |
Summary of Dividends paid |  |  |  |  |
Declaration Date |  |  |  | Feb. 24, 2011 |
Record Date |  |  |  | Mar. 04, 2011 |
Date Paid |  |  |  | Mar. 16, 2011 |
Dividends declared per common share |  |  |  | $ 0.21 |
Total dividend paid |  |  |  | 23,897 |
Second quarter dividend [Member] |  |  |  |  |
Summary of Dividends paid |  |  |  |  |
Declaration Date |  |  |  | May 12, 2011 |
Record Date |  |  |  | Jun. 06, 2011 |
Date Paid |  |  |  | Jun. 17, 2011 |
Dividends declared per common share |  |  |  | $ 0.21 |
Total dividend paid |  |  |  | 23,976 |
Third quarter dividend [Member] |  |  |  |  |
Summary of Dividends paid |  |  |  |  |
Declaration Date |  |  |  | Aug. 04, 2011 |
Record Date |  |  |  | Aug. 17, 2011 |
Date Paid |  |  |  | Sep. 01, 2011 |
Dividends declared per common share |  |  |  | $ 0.21 |
Total dividend paid |  |  |  | $ 23,983 |

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