Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands, except per share data)	2012		2011		2012		2011
Net income	$	19,314	$	19,867	$	38,492	$	49,081
Denominator for basic earnings per share - weighted-average number of common shares outstanding during the period		55,814		58,615		56,750		59,889
Incremental common shares attributable to exercise of outstanding dilutive options		131		177		155		298
Incremental common shares attributable to outstanding restricted shares, restricted stock units and phantom stock		83		87		149		204
Denominator for diluted earnings per share		56,028		58,879		57,054		60,391
Basic earnings per share	$	0.35	$	0.34	$	0.68	$	0.82
Diluted earnings per share	$	0.34	$	0.34	$	0.67	$	0.81