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Repurchase of Common Stock
6 Months Ended
Jun. 30, 2011
Repurchase of Common Stock [Abstract]  
Repurchase of Common Stock
Repurchase of Common Stock

On October 13, 2008, our Board of Directors amended its June 2005 authorization to purchase the 4.50% Notes and/or common stock to allow expenditures up to $30,000, including the $9,864 previously authorized. On October 17, 2008, we repurchased $35,920 principal amount of the 4.50% Notes for approximately $28,112 including accrued interest. On December 12, 2008, our Board of Directors amended its June 2005 authorization to purchase the 4.50% Notes and/or common stock to allow expenditures up to $30,000, including the $1,888 remaining after the October 2008 activities. On March 30, 2009, we repurchased $7,500 principal amount of the 4.50% Notes for approximately $6,038 including accrued interest. On June 19, 2009, we repurchased $6,576 principal amount of the 4.50% Notes for approximately $5,658 including accrued interest. As of June 30, 2011, the remaining authorization is $18,304.