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Subsequent Events (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended | 1 Months Ended
--- | --- | --- | ---
Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011 | Jul. 31, 2012 Dividend declared, April 2012 | Apr. 30, 2012 Dividend declared, April 2012
Subsequent Events |  |  |  |  |
Cash dividends declared per common share (in dollars per share) | $ 0.125 | $ 0.125 | $ 0.375 |  | $ 0.125
Cash dividend declared | $ 6,038 | $ 6,263 | $ 18,073 |  | $ 6,000
Cash dividends paid per common share (in dollars per share) |  |  |  | $ 0.125 |

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