EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2012

EARNINGS PER SHARE

Information related to the calculation of earnings per share

	Income (Numerator)		Shares (Denominator)	Per Share Amount
For the Year Ended December 31, 2012
Basic EPS
Income available to common stockholders	$	162,612	66,392	$	2.45
Effect of Dilutive Securities
Stock options			1,990
Restricted stock		—	13
Diluted EPS
Income available to common stockholders	$	162,612	68,395	$	2.38
For the Year Ended December 31, 2011
Basic EPS
Income available to common stockholders	$	183,683	66,553	$	2.76
Effect of Dilutive Securities
Stock options			2,714
Restricted stock		—	7
Diluted EPS
Income available to common stockholders	$	183,683	69,274	$	2.65
For the Year Ended December 31, 2010
Basic EPS
Income available to common stockholders	$	173,481	67,344	$	2.58
Effect of Dilutive Securities
Stock options			2,458
Restricted stock		—	13
Diluted EPS
Income available to common stockholders	$	173,481	69,815	$	2.48