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Employee Retirement Plans (Tables)
 6 Months Ended
Sep. 30, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of Primary Components of Net Periodic Benefits

The primary components of Net Periodic Benefits consist of the following:
 
 
Three Months Ended September 30,
 
Six Months Ended September 30,
 (In thousands)
 
2019

2018
 
2019

2018
Interest cost
 
$
577

 
$
610

 
$
1,154

 
$
1,220

Expected return on assets
 
(721
)
 
(768
)
 
(1,442
)
 
(1,536
)
Net periodic benefit income
 
$
(144
)
 
$
(158
)
 
$
(288
)
 
$
(316
)