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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2018
Employee Benefit Plans [Abstract]  
Components of Accumulated Other Comprehensive Income (Loss), Net Periodic Benefit Cost
The components of AOCI, which have not yet been recognized as components of net periodic benefit cost, related to pensions and other post-retirement benefits are summarized below:

 
 
Pension Benefits
  
Other Benefits
 
(In thousands)
 
2018
  
2017
  
2018
  
2017
 
Net actuarial loss
 
$
35,538
  
$
23,585
  
$
844
  
$
1,731
 
Prior service cost
  
570
   
94
   
145
   
196
 
Total amounts recognized in AOCI (pre-tax)
 
$
36,108
  
$
23,679
  
$
989
  
$
1,927
 
Changes in Benefit Obligations, Changes in Plan Assets, and the Funded Status of the Pension Plans and Postretirement Benefits
The following table sets forth changes in benefit obligations, changes in plan assets and the funded status of the pension plans and other post-retirement benefits:

 
 
Pension Benefits
  
Other Benefits
 
(In thousands)
 
2018
  
2017
  
2018
  
2017
 
Change in benefit obligation:
            
Benefit obligation at beginning of year
 
$
90,950
  
$
90,477
  
$
8,050
  
$
7,478
 
Service cost
  
1,659
   
1,511
   
10
   
12
 
Interest cost
  
3,645
   
4,168
   
327
   
357
 
Plan participants' contributions
  
-
   
-
   
209
   
218
 
Actuarial (gain) loss
  
(3,977
)
  
4,028
   
(762
)
  
388
 
Acquisition
  
337
   
-
   
-
   
-
 
Curtailment/ settlement
  
-
   
-
   
-
   
286
 
Benefits paid
  
(7,480
)
  
(9,234
)
  
(800
)
  
(689
)
Projected benefit obligation at end of year
 
$
85,134
  
$
90,950
  
$
7,034
  
$
8,050
 
Change in plan assets:
                
Fair value of plan assets at beginning of year
 
$
124,226
  
$
116,216
  
$
-
  
$
-
 
Actual return on plan assets
  
(8,381
)
  
15,032
   
-
   
-
 
Employer contributions
  
1,381
   
2,212
   
591
   
471
 
Plan participants' contributions
  
-
   
-
   
209
   
218
 
Benefits paid
  
(7,480
)
  
(9,234
)
  
(800
)
  
(689
)
Fair value of plan assets at end of year
 
$
109,746
  
$
124,226
  
$
-
  
$
-
 
 
                
Funded (unfunded) status at year end
 
$
24,612
  
$
33,276
  
$
(7,034
)
 
$
(8,050
)
Amounts Recognized in Balance Sheet
The funded status of the pension and other post-retirement benefit plans has been recognized as follows in the consolidated balance sheets at December 31, 2018 and 2017. 

 
 
Pension Benefits
  
Other Benefits
 
(In thousands)
 
2018
  
2017
  
2018
  
2017
 
Other assets
 
$
42,900
  
$
52,775
  
$
-
  
$
-
 
Other liabilities
  
(18,288
)
  
(19,499
)
  
(7,034
)
  
(8,050
)
Funded status
 
$
24,612
  
$
33,276
  
$
(7,034
)
 
$
(8,050
)
Assumptions used to Determine Benefit Obligations and Net Periodic Pension Cost
The following assumptions were used to determine the benefit obligation and the net periodic pension cost for the years indicated:

 
 
Years ended December 31,
 
  
2018
  
2017
  
2016
 
Weighted average assumptions:
         
The following assumptions were used to determine benefit obligations:
         
Discount rate
  
4.79% - 4.80
%
  
4.20% - 4.21
%
  
4.76% - 4.84
%
Expected long-term return on plan assets
  
7.00
%
  
7.00
%
  
7.00
%
Rate of compensation increase
  
3.00
%
  
3.00
%
  
3.00
%
 
            
The following assumptions were used to determine net periodic pension cost:
            
Discount rate
  
4.20% - 4.21
%
  
4.76% - 4.84
%
  
4.69% - 4.71
%
Expected long-term return on plan assets
  
7.00
%
  
7.00
%
  
7.00
%
Rate of compensation increase
  
3.00
%
  
3.00
%
  
3.00
%
Net Periodic Pension Benefits and Other Benefit Costs
Net periodic benefit cost and other amounts recognized in OCI for the years ended December 31 included the following components:

 
 
Pension Benefits
  
Other Benefits
 
(In thousands)
 
2018
  
2017
  
2016
  
2018
  
2017
  
2016
 
Components of net periodic benefit cost:
                  
Service cost
 
$
1,659
  
$
1,511
  
$
2,162
  
$
10
  
$
12
  
$
14
 
Interest cost
  
3,645
   
4,168
   
4,223
   
327
   
357
   
353
 
Expected return on plan assets
  
(8,478
)
  
(7,929
)
  
(7,430
)
  
-
   
-
   
-
 
Amortization of gain due to curtailment
  
-
   
-
   
(768
)
  
-
   
-
   
-
 
Amortization of prior service cost (credit)
  
40
   
46
   
32
   
51
   
51
   
(57
)
Amortization of unrecognized net loss
  
930
   
1,668
   
2,235
   
124
   
87
   
117
 
Net periodic pension (benefit) cost
 
$
(2,204
)
 
$
(536
)
 
$
454
  
$
512
  
$
507
  
$
427
 
 
                        
Other changes in plan assets and benefit obligations recognized in OCI (pre-tax):
                        
Net loss (gain)
 
$
12,882
  
$
(3,075
)
 
$
(2,464
)
 
$
(762
)
 
$
388
  
$
(786
)
Prior service cost
  
337
   
-
   
96
   
-
   
286
   
-
 
Amortization of gain due to settlement
  
-
   
-
   
(43
)
  
-
   
-
   
-
 
Amortization of prior service (cost) credit
  
(40
)
  
(46
)
  
(32
)
  
(51
)
  
(51
)
  
57
 
Amortization of unrecognized net (loss)
  
(930
)
  
(1,668
)
  
(2,235
)
  
(124
)
  
(87
)
  
(117
)
Total recognized in OCI
 
$
12,249
  
$
(4,789
)
 
$
(4,678
)
 
$
(937
)
 
$
536
  
$
(846
)
 
                        
Total recognized in net periodic benefit cost and OCI, pre-tax
 
$
10,045
  
$
(5,325
)
 
$
(4,224
)
 
$
(425
)
 
$
1,043
  
$
(419
)
Estimated Future Benefit Payments for the Pension Plans and Other Postretirement Benefit Plans
The following table sets forth estimated future benefit payments for the pension plans and other post-retirement benefit plans as of December 31, 2018:

(In thousands)
 
Pension
Benefits
  
Other
Benefits
 
2019
 
$
6,926
  
$
607
 
2020
  
6,705
   
594
 
2021
  
6,683
   
569
 
2022
  
6,646
   
572
 
2023
  
6,577
   
570
 
2024 - 2028
  
38,227
   
2,686
 
Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates
A one-percentage point change in the health care trend rates would have the following effects as of and for the year ended December 31, 2018: 

(In thousands)
 
One Percentage Point Increase
  
One Percentage Point Decrease
 
Increase (decrease) on total service and interest cost components
 
$
28
  
$
(24
)
Increase (decrease) on post-retirement accumulated benefit obligation
  
573
   
(499
)
Target and Actual Allocations of Defined Benefit Pension Plan's Assets
The target and actual allocations expressed as a percentage of the defined benefit pension plan’s assets are as follows:

 
 
Target 2018
  
2018
  
2017
 
Cash and cash equivalents
  
0 - 15
%
  
4
%
  
3
%
Fixed income securities
  
30 - 60
%
  
39
%
  
45
%
Equities
  
40 - 70
%
  
57
%
  
52
%
Total
      
100
%
  
100
%
Financial Instruments Recorded at Fair Value on a Recurring Basis by the Plan
The following table presents the financial instruments recorded at fair value on a recurring basis by the Plan:

(In thousands)
 
Level 1
  
Level 2
  
December 31, 2018
 
Cash and cash equivalents
 
$
4,095
  
$
-
  
$
4,095
 
Foreign equity mutual funds
  
38,861
   
-
   
38,861
 
Equity mutual funds
  
24,124
   
-
   
24,124
 
U.S. government bonds
  
-
   
76
   
76
 
Corporate bonds
  
-
   
42,590
   
42,590
 
Total
 
$
67,080
  
$
42,666
  
$
109,746
 

  
Level 1
  
Level 2
  
December 31, 2017
 
Cash and cash equivalents
 
$
3,684
  
$
-
  
$
3,684
 
Foreign equity mutual funds
  
44,508
   
-
   
44,508
 
Equity mutual funds
  
26,747
   
-
   
26,747
 
U.S. government bonds
  
-
   
99
   
99
 
Corporate bonds
  
-
   
49,188
   
49,188
 
Total
 
$
74,939
  
$
49,287
  
$
124,226