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Employee Benefit Plans (Tables)
 6 Months Ended
Aug. 31, 2019
Retirement Benefits [Abstract]  
Components of net periodic benefit cost Components of net periodic benefit cost were:
 
 
Three Months Ended
 
Six Months Ended
In thousands
 
August 31, 2019
 
September 1, 2018
 
August 31,
2019
 
September 1,
2018
Interest cost
 
$
123

 
$
127

 
$
246

 
$
254

Expected return on assets
 
(46
)
 
(10
)
 
(92
)
 
(20
)
Amortization of unrecognized net loss
 
55

 
57

 
110

 
114

Net periodic benefit cost
 
$
132

 
$
174

 
$
264

 
$
348