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Capital Stock (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

Schedule of Common Stock Shares Purchased and Retired

Shown below is a summary of shares purchased and retired by the Company during the three years ended December 31:



	Shares of Common Stock
	Purchased	Retired
2012	558,599	658,890
2011	463,189	474,219
2010	522,405	520,458

- Definition

Tabular disclosure of 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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