Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Earnings per share is computed as follows:

	Three Months Ended September 30,												Nine Months Ended September 30,
	2014						2013						2014						2013
	Net Income		Shares		Per Share Amount		Net Income		Shares		Per Share Amount		Net Income		Shares		Per Share Amount		Net Income		Shares		Per Share Amount
Basic earnings per share	$	87,176		86,715	$	1.01	$	120,740		89,610	$	1.35	$	75,365		87,329	$	0.86	$	64,889		86,867	$	0.75
Effect of dilutive incentive-based awards				309						596						319						664
Diluted earnings per share	$	87,176		87,024	$	1.00	$	120,740		90,206	$	1.34	$	75,365		87,648	$	0.86	$	64,889		87,531	$	0.74