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Warranty (Tables)
 6 Months Ended
Sep. 30, 2019
Product Warranties Disclosures [Abstract]  
Analysis Of Changes In Liability For Product Warranties An analysis of changes in the liability for product warranties is as follows:

 
 
Quarter ended
 
Six months ended
 
 
September 29, 2019
 
September 30, 2018
 
September 29, 2019
 
September 30, 2018
Balance at beginning of period
 
$
56,179

 
$
49,689

 
$
54,568

 
$
50,602

Current period provisions
 
6,475

 
6,181

 
13,994

 
11,017

Costs incurred
 
(7,227
)
 
(7,920
)
 
(13,175
)
 
(12,301
)
Foreign currency translation adjustment
 
(491
)
 
(217
)
 
(451
)
 
(1,585
)
Balance at end of period
 
$
54,936

 
$
47,733

 
$
54,936

 
$
47,733