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Retirement Agreements and Other Postretirement Benefit Plan (Tables)
 12 Months Ended
Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Components Of Net Periodic Benefits Cost
Cost of the Company’s postretirement benefits included the following components:
 
2015
 
2014
 
2013
Net periodic benefit cost
 
 
 
 
 
  Service cost – benefits earned during the year
$
16,748

 
$
14,667

 
$
15,782

  Interest cost on the projected benefit obligation
30,772

 
30,472

 
28,412

  Amortization (accretion) of unrecognized prior service cost
4,390

 
2,217

 
(1,518
)
  Amortization of unrecognized loss
3,514

 
—

 
6,293

Net periodic benefits cost at end of year
$
55,424

 
$
47,356

 
$
48,969
Schedule of Net Funded Status On The Balance Sheet
The effects of the funded status on the Company’s Consolidated Balance Sheets at December 31, 2015 and 2014 are presented in the following table:
 
2015
 
2014
Funded status
 
 
 
Actuarial present value of future benefits:
 
 
 
Fully eligible active employee
$
(483,985
)
 
$
(409,492
)
Non-eligible active employees
(398,638
)
 
(362,045
)
Plan assets
—

 
—

Funded status of accumulated postretirement benefit obligation, recognized in other liabilities
$
(882,623
)
 
$
(771,537
)
Development Of The Accumulated Postretirement Benefit Obligation
Development of the accumulated postretirement benefit obligation for the years ended December 31, 2015 and 2014 includes the following:
 
2015
 
2014
Accrued postretirement benefit obligation at beginning of year
$
(771,537
)
 
$
(679,277
)
Service cost – benefits earned during the year
(16,748
)
 
(14,667
)
Interest cost on projected benefit obligation
(30,772
)
 
(30,472
)
Actuarial loss
(63,566
)
 
(47,121
)
Accrued postretirement benefit obligation at end of year
$
(882,623
)
 
$
(771,537
)
Changes in Amounts Related to Accumulated Other Comprehensive Income, Pre-Tax
The changes in amounts related to accumulated other comprehensive income, pre-tax, are as follows:
 
2015
 
2014
Balance at beginning of year
$
118,150

 
$
73,246

Components of accumulated other comprehensive income:
 
 
 
Unrecognized prior service cost
(4,390
)
 
(2,217
)
Amortization of loss, net
(3,514
)
 
—

Actuarial loss
63,566

 
47,121

Balance at end of year
$
173,812

 
$
118,150
Amounts in Accumulated Other Comprehensive Income, Pre-Tax, to be Recognized as Components of Net Periodic Benefit Costs
The amounts currently in accumulated other comprehensive income, pre-tax, that will be reclassified to the Consolidated Statements of Income and recognized as components of net periodic benefit costs in 2015 are:
 
Projected
2016
Amortization of unrecognized prior service cost
$
—

Amortization of unrecognized loss
8,941

Net periodic benefit cost at end of year
$
8,941
Effect of Net Periodic Postretirement Benefit Cost and Accumulated Postretirement Benefit Obligation
The following illustrates the effects on the net periodic postretirement benefit cost (“NPPBC”) and the accumulated postretirement benefit obligation (“APBO”) of a one percentage point increase and one percentage point decrease in the assumed health care cost trend rate as of December 31, 2015:
 
One
Percentage
Point
Increase
 
One
Percentage
Point
Decrease
Net periodic postretirement benefit cost
 
 
 
Effect on the service cost component
$
2,600

 
$
(1,989
)
Effect on interest cost
7,339

 
(5,721
)
Total effect on the net periodic postretirement benefit cost
$
9,939

 
$
(7,710
)
Accumulated postretirement benefit obligation (including active employees
who are not fully eligible)
 
 
 
Effect on those currently receiving benefits (retirees and spouses)
$
—

 
$
—

Effect on active fully eligible
81,657

 
(65,192
)
Effect on actives not yet eligible
101,813

 
(77,845
)
Total effect on the accumulated postretirement benefit obligation
$
183,470

 
$
(143,037
)