Description of Business and Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Apr. 29, 2016
Minimum | Software maintenance and Hardware maintenance services
Accounting Policies [Abstract]
Maintenance contractual term	1 year
Minimum | Developed Technology
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum | Customer Contracts/Relationships
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum | Covenants not to Compete
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum | Trademarks and Trade Names
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum | Software maintenance and Hardware maintenance services
Accounting Policies [Abstract]
Maintenance contractual term	5 years
Maximum | Developed Technology
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	6 years
Maximum | Customer Contracts/Relationships
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	8 years
Maximum | Covenants not to Compete
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum | Trademarks and Trade Names
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	7 years