Dividends Per Share

12 Months Ended

Dec. 31, 2012

Dividends per Share [Abstract]

Dividends per Share

21.Dividends per Share

Quarterly cash dividends for the years ended December 31, 2011 and 2012 totaled $36.6 million and $48.4 million or $0.135 per share in the first two quarters of 2011 and 0.16 per share in the last two quarters of 2011 and $0.20 per share in all quarters of 2012. The board of directors has declared a quarterly cash dividend of $0.30 per share for all classes of common stock to be paid on March 13, 2013 to stockholders of record on February 22, 2013.

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