EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2012

EARNINGS PER SHARE [Abstract]

Reconciliation of Basic to Diluted Earnings Per Share

The following is a reconciliation of basic to diluted earnings per share for the three and nine months ended September 30, 2012 and 2011.

	Three Months Ended September 30,						Nine Months Ended September 30,
(000's omitted, except per share data)	2012			2011			2012			2011
Net income	$	18,367		$	20,008		$	58,264		$	54,154
Income attributable to unvested stock-based compensation awards		(125	)		(147	)		(372	)		(414	)
Income available to common shareholders		18,242			19,861			57,892			53,740
Weighted-average common shares outstanding – basic		39,384			36,679			39,095			35,436
Basic earnings per share	$	0.46		$	0.54		$	1.48		$	1.52
Net income	$	18,367		$	20,008		$	58,264		$	54,154
Income attributable to unvested stock-based compensation awards		(125	)		(147	)		(372	)		(414	)
Income available to common shareholders		18,242			19,861			57,892			53,740
Weighted-average common shares outstanding		39,384			36,679			39,095			35,436
Assumed exercise of stock options		486			362			496			403
Weighted-average shares – diluted		39,870			37,041			39,591			35,839
Diluted earnings per share	$	0.46		$	0.54		$	1.46		$	1.50