Earnings Per Share

6 Months Ended

Jun. 30, 2015

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.

				Six months ended June 30,				Three months ended June 30,
				2015		2014		2015		2014
Net earnings				$	193,334	$	205,047	$	80,417	$	97,136
Less: net earnings attributable to unvested restricted stock					(2,848)		(3,282)		(1,207)		(1,590)
		Net earnings available to common stock		$	190,486	$	201,765	$	79,210	$	95,546
Weighted-average common shares outstanding					94,522		98,551		94,165		98,442
Dilutive effect of outstanding securities (determined using
	treasury stock method)				276		240		293		218
		Weighted-average common shares and potential
			common shares outstanding		94,798		98,791		94,458		98,660
Earnings per common share
		Basic		$	2.02	$	2.05	$	0.84	$	0.97
		Diluted		$	2.01	$	2.04	$	0.84	$	0.97