Shareholders' Equity and Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2012

Shareholders' Equity and Earnings per Share [Abstract]

Presentation of information about basic and diluted weighted-average shares outstanding

The following table presents information about basic and diluted weighted-average shares outstanding:

( in thousands )		Three months ended			Nine months ended
		September 30,			September 30,
	2012		2011	2012		2011
Weighted-average shares outstanding:
Basic	149,985		161,789	152,731		166,318
Dilutive effect of equity awards	1,216		487	1,174		996
Diluted weighted-average shares outstanding	151,201		162,276	153,905		167,314
Anti-dilutive share awards			4,049	825		1,652