Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity

Components of basic and diluted earnings per share

	Three months ended			Nine months ended
	September 30,			September 30,
	2012		2011	2012	2011
	(in thousands, except per share amounts)
Net income from continuing operations	$	52,116	39,371	140,178	132,836
Weighted average shares outstanding - basic	85,753		85,776	85,817	85,951
Dilutive potential shares from stock options	2		6	2	13
Weighted average shares outstanding - diluted	85,755		85,782	85,819	85,964
Earnings per share from continuing operations
Basic	$	0.61	0.46	1.63	1.55
Diluted	$	0.61	0.46	1.63	1.55