Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

Schedule of Stock by Class [Table Text Block]

The following table sets forth the activity in the number of shares outstanding (in thousands):

	Common Stock Issued	Treasury Stock		Common Stock Outstanding
Common stock outstanding at December 31, 2009	125,287	5,459		119,828
Shares issued for stock-based compensation awards	50	(1,070	)	1,120
Repurchases of common stock	—	6,301		(6,301	)
Common stock outstanding at December 31, 2010	125,337	10,690		114,647
Shares issued for stock-based compensation awards	45	(2,662	)	2,707
Repurchases of common stock	—	5,540		(5,540	)
Common stock outstanding at December 31, 2011	125,382	13,568		111,814
Shares issued for stock-based compensation awards	42	(1,326	)	1,368
Repurchases of common stock	—	7,181		(7,181	)
Common stock outstanding at December 31, 2012	125,424	19,423		106,001