Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share

	For the Three Months Ended September 30,					For the Nine Months Ended September 30,
	2011		2010			2011		2010
NUMERATOR
Basic:
Income from continuing operations	$	39,240	$	42,111		$	121,988	$	113,892
Loss from discontinued operations, net of tax		—		(147	)		—		(404	)
Net income	$	39,240	$	41,964		$	121,988	$	113,488
Diluted:
Income from continuing operations	$	39,240	$	42,111		$	121,988	$	113,892
Loss from discontinued operations, net of tax		—		(147	)		—		(404	)
Diluted net income	$	39,240	$	41,964		$	121,988	$	113,488
DENOMINATOR
Basic:
Weighted average common shares outstanding		104,254		110,160			106,624		112,814
Diluted:
Weighted average common shares outstanding		104,254		110,160			106,624		112,814
Effect of dilutive securities:
Stock options		550		711			621		773
Restricted stock-based compensation		216		192			169		157
Weighted average shares and assumed conversions		105,020		111,063			107,414		113,744
BASIC EARNINGS PER SHARE:
Income from continuing operations	$	0.38	$	0.38		$	1.14	$	1.01
Loss from discontinued operations, net of tax		—		—			—		—
Net income	$	0.38	$	0.38		$	1.14	$	1.01
DILUTED EARNINGS PER SHARE:
Income from continuing operations	$	0.37	$	0.38		$	1.14	$	1.00
Loss from discontinued operations, net of tax		—		—			—		—
Net income	$	0.37	$	0.38		$	1.14	$	1.00