EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2011

EARNINGS PER SHARE

Information related to the calculation of earnings per share

	Three months ended
	September 30, 2011				September 30, 2010
	Diluted		Basic		Diluted		Basic
Consolidated operations
Income available to common stockholders	$	49,297	$	49,297	$	46,983	$	46,983
Average equivalent shares
Shares of common stock	66,381		66,381		67,213		67,213
Effect of dilutive stock based compensation
Stock options	2,291		—		2,147		—
Restricted stock	5		—		14		—
Total average equivalent shares	68,677		66,381		69,374		67,213
Net income per share	$	0.72	$	0.74	$	0.68	$	0.70

	Nine months ended
	September 30, 2011				September 30, 2010
	Diluted		Basic		Diluted		Basic
Consolidated operations
Income available to common stockholders	$	145,063	$	145,063	$	132,700	$	132,700
Average equivalent shares
Shares of common stock	66,747		66,747		67,471		67,471
Effect of dilutive stock based compensation
Stock options	2,863		—		2,438		—
Restricted stock	6		—		12		—
Total average equivalent shares	69,616		66,747		69,921		67,471
Net income per share	$	2.08	$	2.17	$	1.90	$	1.97