XML 58 R45.htm IDEA: XBRL DOCUMENT v3.8.0.1
Intangible Assets and Goodwill - Schedule of Goodwill Rollforward (Details) - USD ($)
$ in Millions
 12 Months Ended
Apr. 28, 2018
Apr. 29, 2017
Apr. 30, 2016
Goodwill [Line Items]      
Goodwill, Acquired During Period $ 57.2 $ 0.0 $ 0.0
Goodwill [Roll Forward]      
Beginning balance 1.6 1.7 1.7
Impairment 0.0 0.0 0.0
Foreign Currency Translation 0.4 (0.1) 0.0
Ending balance 59.2 1.6 1.7
Interface      
Goodwill [Line Items]      
Goodwill, Acquired During Period 0.0 0.0 0.0
Goodwill [Roll Forward]      
Beginning balance 0.6 0.7 0.7
Impairment 0.0 0.0 0.0
Foreign Currency Translation 0.1 (0.1) 0.0
Ending balance 0.7 0.6 0.7
Power Products      
Goodwill [Line Items]      
Goodwill, Acquired During Period 0.0 0.0 0.0
Goodwill [Roll Forward]      
Beginning balance 1.0 1.0 1.0
Impairment 0.0 0.0 0.0
Foreign Currency Translation 0.0 0.0 0.0
Ending balance 1.0 1.0 1.0
Automotive [Member]      
Goodwill [Line Items]      
Goodwill, Acquired During Period 57.2 0.0 0.0
Goodwill [Roll Forward]      
Beginning balance 0.0 0.0 0.0
Impairment 0.0 0.0 0.0
Foreign Currency Translation 0.3 0.0 0.0
Ending balance $ 57.5 $ 0.0 $ 0.0