Earnings Per Share

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

(11)Earnings Per Share

The following table details the numerator and denominator used in our earnings per share calculations.

				Nine months ended September 30,				Three months ended September 30,
				2013		2012		2013		2012
Net earnings				$	292,187	$	283,139	$	98,175	$	107,062
Less: net earnings attributable to unvested restricted stock					(4,754)		(5,150)		(1,527)		(1,912)
		Net earnings available to common stock		$	287,433	$	277,989	$	96,648	$	105,150
Weighted-average common shares outstanding					98,881		100,340		98,723		99,424
Dilutive effect of outstanding securities (determined using
	treasury stock method)				254		261		270		276
		Weighted-average common shares and potential
			common shares outstanding		99,135		100,601		98,993		99,700
Anti-dilutive securities not included in treasury stock
	method computation				89		717		131		461