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Dividends
6 Months Ended
Jun. 30, 2012
Dividends Payable [Abstract]  
Dividends
K)
Dividends. In April 2012, our board of directors declared a special cash dividend of $1.15 per share. The dividend was paid on May 25, 2012 to shareholders of record as of May 11, 2012. The total amount of the dividend paid was $25.5 million.