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Stockholders' Equity	6 Months Ended
	Jun. 30, 2011
Stockholders' Equity
Stockholders' Equity	6. Stockholders' Equity Treasury Stock During the three and six months ended June 30, 2011, the Company repurchased 35,000 and 85,000 common shares, respectively, at weighted-average prices per share of $57.17 and $56.65, respectively, under the Company's share repurchase program. The total cost of treasury shares acquired by the Company during the three and six months ended June 30, 2011 was approximately $2.0 million and $4.8 million, respectively. There were no share repurchases made under the program during the three and six months ended June 30, 2010. At June 30, 2011, there were 245,000 shares of common stock remaining for repurchase under the share repurchase program.

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The entire disclosure for an entity's treasury stock, including the average cost per share, carrying basis for each class of treasury stock, description of share repurchase program authorized by an entity's board of directors, the number of shares repurchased, the cost of the shares repurchased, the remaining maximum dollar value of shares available for repurchase under the program, the treatment of the purchase price in excess of the current market value, number of shares held for each class of treasury stock, and other information necessary to a fair presentation.

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