Quarterly report pursuant to Section 13 or 15(d)

Shareholder's Equity (Details)

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Shareholder's Equity (Details) (USD $)
Share data in Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Shareholder's Equity (Textuals) [Abstract]          
Stock Repurchase Program, Authorized Amount   $ 182,000,000      
Purchase of common stock shares   3,700   10,200 0
Purchase of common stock shares, value       65,303,000 0
Purchase of common stock, average price per share   $ 6.68   $ 6.42  
Cash dividends declared, prior period   $ 0.04 $ 0.04 $ 0.12 $ 0.06
Redemption of trust preferred securities $ 36,000,000     $ 194,300,000