GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2018

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, 2018							December 31, 2017
(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	$	(42,790	)	$	20,112	$	62,902	$	(37,877	)	$	25,025
Other intangibles		87,616		(29,507	)		58,109		86,535		(20,902	)		65,633
Total amortizing intangibles	$	150,518	$	(72,297	)	$	78,221	$	149,437	$	(58,779	)	$	90,658

Estimated Aggregate Amortization Expense for Each of Five Succeeding Fiscal Years

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

(000's omitted)
Oct - Dec 2018	$	4,375
2019		15,296
2020		12,722
2021		10,853
2022		9,317
Thereafter		25,658
Total	$	78,221

Components of Goodwill

Shown below are the components of the Company’s goodwill at December 31, 2017 and September 30, 2018:

(000’s omitted)	December 31, 2017			Activity			September 30, 2018
Goodwill	$	739,254		$	(951	)	$	738,303
Accumulated impairment		(4,824	)		0			(4,824	)
Goodwill, net	$	734,430		$	(951	)	$	733,479