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Employee Benefits (Tables)
 6 Months Ended
Jun. 30, 2019
Retirement Benefits [Abstract]  
Pension and Other Defined Contribution Retirement Plan Expenses
Pension and other defined contribution retirement plan expenses included the following components:
(DOLLARS IN THOUSANDS)
U.S. Plans
Three Months Ended June 30,
 
Six Months Ended June 30,
2019
 
2018
 
2019
 
2018
Service cost for benefits earned(1)
$
474

 
$
596

 
$
948

 
$
1,192

Interest cost on projected benefit obligation(2)
5,453

 
4,790

 
10,906

 
9,580

Expected return on plan assets(2)
(6,983
)
 
(7,740
)
 
(13,966
)
 
(15,479
)
Net amortization and deferrals(2)
1,276

 
1,549

 
2,551

 
3,098

Net periodic benefit (income) cost
$
220

 
$
(805
)
 
$
439

 
$
(1,609
)

(DOLLARS IN THOUSANDS)
Non-U.S. Plans
Three Months Ended June 30,
 
Six Months Ended June 30,
2019
 
2018
 
2019
 
2018
Service cost for benefits earned(1)
$
4,873

 
$
4,470

 
$
9,746

 
$
8,939

Interest cost on projected benefit obligation(2)
4,435

 
4,338

 
8,870

 
8,675

Expected return on plan assets(2)
(10,904
)
 
(12,032
)
 
(21,808
)
 
(24,064
)
Net amortization and deferrals(2)
2,922

 
2,972

 
5,844

 
5,943

Net periodic benefit (income) cost
$
1,326

 
$
(252
)
 
$
2,652

 
$
(507
)
_______________________ 
(1)
Included as a component of Operating Profit.
(2)
Included as a component of Other Income (Expense), net.
Postretirement Benefits Other Than Pension Expenses
Expense recognized for postretirement benefits other than pensions included the following components: 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(DOLLARS IN THOUSANDS)
2019
 
2018
 
2019
 
2018
Service cost for benefits earned
$
148

 
$
196

 
$
296

 
$
391

Interest cost on projected benefit obligation
578

 
654

 
1,156

 
1,308

Net amortization and deferrals
(1,195
)
 
(1,189
)
 
(2,389
)
 
(2,378
)
Total postretirement benefit income
$
(469
)
 
$
(339
)
 
$
(937
)
 
$
(679
)