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Employee Benefit Plans (Tables)
 6 Months Ended
Sep. 01, 2018
Retirement Benefits [Abstract]  
Components of net periodic benefit cost
Components of net periodic benefit cost were:
 
 
Three Months Ended
 
Six Months Ended
In thousands
 
September 1, 2018
 
September 2, 2017
 
September 1,
2018
 
September 2,
2017
Interest cost
 
$
127

 
$
133

 
$
254

 
$
266

Expected return on assets
 
(10
)
 
(10
)
 
(20
)
 
(20
)
Amortization of unrecognized net loss
 
57

 
57

 
114

 
114

Net periodic benefit cost
 
$
174

 
$
180

 
$
348

 
$
360