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Pension And Other Postretirement Benefit Plans
 3 Months Ended
Jun. 30, 2012
Pension And Other Postretirement Benefit Plans [Abstract]  
Pension And Other Postretirement Benefit Plans
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The Company has 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 provides postretirement health and life insurance benefits for eligible U.S. employees attaining specific age and service levels.

The components of the Company’s net periodic benefit cost were as follows:
 
 
Pension Benefits
 
Other Postretirement Benefits
 
 
Three Months Ended June 30,
 
Three Months Ended June 30,
(in thousands of dollars)
 
2012
 
2011
 
2012
 
2011
 
 
 
 
 
 
 
 
 
Service cost
 
$
1,224

  
$
1,290

 
$
148

  
$
189

Interest cost
 
3,166

  
3,451

 
576

  
578

Expected return on plan assets
 
(3,497
)
  
(3,709
)
 
(31
)
  
(34
)
Net amortization and deferral
 
2,518

  
1,342

 
52

  
(58
)
Net periodic benefit cost
 
$
3,411

 
$
2,374

 
$
745

 
$
675


During the quarter ended June 30, 2012, the Company made contributions of approximately $1.5 million to its pension plans. Additional contributions of approximately $15.4 million are expected during the remaining nine months of fiscal year 2013, including $6.5 million to the Company's ERISA-regulated U.S. plan and $8.9 million to its non-ERISA regulated and other plans.