The following is a reconciliation of basic to diluted earnings per share for the three and nine months ended September 30, 2013 and 2012.

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
(000's omitted, except per share data)	2013	2012	2013	2012
Net income	$21,989	$18,367	$63,352	$58,264
Income attributable to unvested stock-based compensation awards	(121)	(125)	(315)	(372)
Income available to common shareholders	21,868	18,242	63,037	57,892

Weighted-average common shares outstanding – basic	40,121	39,384	39,914	39,095
Basic earnings per share	$0.55	$0.46	$1.58	$1.48

Net income	$21,989	$18,367	$63,352	$58,264
Income attributable to unvested stock-based compensation awards	(121)	(125)	(315)	(372)
Income available to common shareholders	21,868	18,242	63,037	57,892

Weighted-average common shares outstanding – basic	40,121	39,384	39,914	39,095
Assumed exercise of stock options	506	486	474	496
Weighted-average common shares outstanding – diluted	40,627	39,870	40,388	39,591

Diluted earnings per share	$0.54	$0.46	$1.56	$1.46
Cash dividends declared per share	$0.28	$0.27	$0.82	$0.79