Annual report pursuant to Section 13 and 15(d)

Subsequent Events

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Subsequent Events
12 Months Ended
Dec. 31, 2011
Subsequent Events [Abstract]  
Subsequent Events

14.    Subsequent Events

On February 21, 2012, the Company announced that its board of directors approved a quarterly cash dividend of $0.30 per common share to shareholders of record as of March 7, 2012, payable on March 22, 2012.