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Employee Benefit Plans (Tables)
 9 Months Ended
Nov. 30, 2019
Retirement Benefits [Abstract]  
Components of net periodic benefit cost Components of net periodic benefit cost were:
 
 
Three Months Ended
 
Nine Months Ended
In thousands
 
November 30, 2019
 
December 1, 2018
 
November 30,
2019
 
December 1,
2018
Interest cost
 
$
123

 
$
127

 
$
369

 
$
381

Expected return on assets
 
(46
)
 
(10
)
 
(138
)
 
(30
)
Amortization of unrecognized net loss
 
55

 
57

 
165

 
171

Net periodic benefit cost
 
$
132

 
$
174

 
$
396

 
$
522