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Pension And Other Postretirement Benefit Plans
 9 Months Ended
Dec. 31, 2019
Defined Benefit Plan [Abstract]  
Pension and Other Postretirement Benefits Disclosure PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The Company sponsors several defined benefit pension plans covering U.S. salaried employees and certain foreign and other employee groups. These plans provide retirement benefits based primarily on employee compensation and years of service. The Company also sponsors defined benefit plans that provide postretirement health and life insurance benefits for eligible U.S. employees attaining specific age and service levels, although postretirement life insurance is no longer provided for active employees.

The components of the Company’s net periodic benefit cost were as follows:
 
 
Pension Benefits
 
Other Postretirement Benefits
 
 
Three Months Ended December 31,
 
Three Months Ended December 31,
(in thousands of dollars)
 
2019
 
2018
 
2019
 
2018
 
 
 
 
 
 
 
 
 
Service cost
 
$
1,529

  
$
1,433

 
$
53

  
$
60

Interest cost
 
2,678

  
2,503

 
322

  
342

Expected return on plan assets
 
(4,151
)
  
(3,693
)
 
(24
)
  
(24
)
Net amortization and deferral
 
696

  
902

 
(154
)
  
(193
)
Net periodic benefit cost
 
$
752

 
$
1,145

 
$
197

 
$
185

 
 
 
 
 
 
 
 
 
 
 
Pension Benefits
 
Other Postretirement Benefits
 
 
Nine Months Ended December 31,
 
Nine Months Ended December 31,
(in thousands of dollars)
 
2019
 
2018
 
2019
 
2018
 
 
 
 
 
 
 
 
 
Service cost
 
$
4,595

  
$
4,340

 
$
159

  
$
177

Interest cost
 
8,125

  
7,469

 
986

  
1,012

Expected return on plan assets
 
(12,557
)
  
(11,081
)
 
(80
)
  
(74
)
Net amortization and deferral
 
2,092

  
2,706

 
(459
)
  
(581
)
Net periodic benefit cost
 
$
2,255

 
$
3,434

 
$
606

 
$
534

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


During the nine months ended December 31, 2019, the Company made contributions of approximately $5.1 million to its pension plans. Additional contributions of $0.9 million are expected during the remaining three months of fiscal year 2020.