GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2017

GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS [Abstract]

Gross Carrying Amount and Accumulated Amortization of Identifiable Intangible Assets

The gross carrying amount and accumulated amortization for each type of identifiable intangible asset are as follows:

	September 30, 2017							December 31, 2016
(000's omitted)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortizing intangible assets:
Core deposit intangibles	$	62,902	$	(36,101	)	$	26,801	$	39,688	$	(32,581	)	$	7,107
Other intangibles		83,767	$	(17,718	)		66,049		17,853		(9,258	)		8,595
Total amortizing intangibles	$	146,669	$	(53,819	)	$	92,850	$	57,541	$	(41,839	)	$	15,702

Estimated Aggregate Amortization Expense

The estimated aggregate amortization expense for each of the five succeeding fiscal years ended December 31 is as follows:

(000's omitted)
Oct - Dec 2017	$	4,904
2018		17,259
2019		14,502
2020		12,043
2021		10,288
Thereafter		33,854
Total	$	92,850

Components of Goodwill

Shown below are the components of the Company’s goodwill at December 31, 2016 and September 30, 2017:

(000’s omitted)	December 31, 2016			Activity		September 30, 2017
Goodwill	$	469,966		$	266,363	$	736,329
Accumulated impairment	$	(4,824	)	$	0	$	(4,824	)
Goodwill, net	$	465,142		$	266,363	$	731,505