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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2011
Subsequent Events [Abstract]
Subsequent Events	(25) Subsequent Events On January 26, 2012, the Board of Directors declared a cash dividend of $0.06 per common share, and a special cash dividend of $0.06 per share, each payable February 22, 2012 to shareholders of record on February 6, 2012.