EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2013

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 six months ended June 30, 2013 and 2012.

	Three Months Ended		Six Months Ended
	June 30,		June 30,
(000's omitted, except per share data)	2013	2012	2013	2012
Net income	$21,122	$21,071	$41,363	$39,897
Income attributable to unvested stock-based compensation awards	(114)	(144)	(189)	(247)
Income available to common shareholders	$21,008	$20,927	$41,174	$39,650
Weighted-average common shares outstanding – basic	39,914	39,324	39,809	38,948
Basic earnings per share	$0.53	$0.53	$1.03	$1.02
Net income	$21,122	$21,071	$41,363	$39,897
Income attributable to unvested stock-based compensation awards	(114)	(144)	(189)	(247)
Income available to common shareholders	$21,008	$20,927	$41,174	$39,650
Weighted-average common shares outstanding – basic	39,914	39,324	39,809	38,948
Assumed exercise of stock options	427	463	445	501
Weighted-average common shares outstanding – diluted	40,341	39,787	40,254	39,449
Diluted earnings per share	$0.52	$0.53	$1.02	$1.01
Cash dividends declared per share	$0.27	$0.26	$0.54	$0.52