XML 108 R91.htm IDEA: XBRL DOCUMENT v3.7.0.1
Commitments and Contingencies - Guarantees and Warranties (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 29, 2017
Apr. 30, 2016
May 02, 2015
Movement in Standard Product Warranty Accrual      
Beginning accrued warranty costs $ 30,496 $ 26,481  
Warranties issued during the period 10,930 10,528  
Settlements made during the period (16,790) (18,377)  
Changes in accrued warranty costs for pre-existing warranties during the period, including expirations 3,263 11,864  
Ending accrued warranty costs $ 27,899 30,496 $ 26,481
Minimum      
Warranties:      
Standard parts warranty period 1 year    
Installation warranty period 1 year    
Maximum      
Warranties:      
Standard parts warranty period 5 years    
Installation warranty period 10 years    
Performance guarantees | Letter of credit and bank guarantees agreements      
Guarantees:      
Performance guarantees outstanding $ 10,466    
Performance guarantees | Surety bonds      
Guarantees:      
Performance guarantees outstanding 39,994    
Out-of-Home Product Application [Member]      
Movement in Standard Product Warranty Accrual      
Changes in accrued warranty costs for pre-existing warranties during the period, including expirations 1,766 $ 9,174 $ 1,168
Ending accrued warranty costs $ 3,079