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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2011
INCOME TAXES [Abstract]  
Provision for (benefit from) income taxes
The provision for income taxes for the years ended December 31 is as follows:

(000's omitted)
2011
2010
2009
Current:
     
     Federal
$17,145
$13,090
$6,400
     State and other
375
776
1,788
Deferred:
     
     Federal
10,674
7,633
3,929
     State and other
2,191
1,566
(495)
Provision for income taxes
$30,385
$23,065
$11,622
Components of deferred tax asset (liability)
Components of the net deferred tax liability, included in other liabilities, as of December 31 are as follows:

(000's omitted)
2011
2010
Allowance for loan losses
$16,371
$16,437
Employee benefits
6,718
5,843
Interest rate swap
0
1,243
Debt extinguishment
1,821
2,111
Other
2,169
1,440
  Deferred tax asset
27,079
27,074
     
Investment securities
37,386
7,487
Intangible assets
9,448
16,962
Loan origination costs
5,041
4,397
Depreciation
5,779
3,700
Mortgage servicing rights
678
933
Pension
2,860
4,163
Prepaid FDIC insurance
3,079
2,913
  Deferred tax liability
64,271
40,555
Net deferred tax liability
($37,192)
($13,481)
Income tax rate reconciliation
A reconciliation of the differences between the federal statutory income tax rate and the effective tax rate for the years ended December 31 is shown in the following table:
 
 
2011
2010
2009
Federal statutory income tax rate
35.0%
35.0%
35.0%
Increase (reduction) in taxes resulting from:
     
     Tax-exempt interest
(7.1)
(8.3)
(14.1)
     State income taxes, net of federal benefit
1.6
1.8
1.7
     Other
(0.1)
(1.8)
(0.7)
Effective income tax rate
29.4%
26.7%
21.9%

Unrecognized tax benefits
A reconciliation of the unrecognized tax benefits for the years ended December 31 is shown in the following table:
 
(000's omitted)
2011
2010
2009
Unrecognized tax benefits at beginning of year
$98 
$708 
$856 
Changes related to:
     
     Positions taken during the current year
35 
35 
79 
     Settlements with taxing authorities
(408) 
     Lapse of statutes of limitation
(237) 
(227) 
Unrecognized tax benefits at end of year
$133 
$98 
$708