Commitments and Contingencies (Details)					3 Months Ended
	Oct. 29, 2015 USD ($)	Feb. 27, 2014 USD ($)	May. 21, 2012	Apr. 28, 2011 USD ($)	Sep. 30, 2015 USD ($)
Rotary Systems
Contingencies
Period to identify alleged trade secrets with specificity or face dismissal of claim with prejudice			60 days
Rotary Systems | Minimum
Contingencies
Claim for damages				$ 50,000
Cowealth Medical
Contingencies
Claim for damages		$ 170,000,000
Recorded charge for awarded amount					$ 3,400,000
Additional amount recorded					0
Accrual amount of litigation					$ 0
Cowealth Medical | Subsequent Event
Contingencies
Awarded value for the damages	$ 3,400,000
Percentage of interest on awarded amount	5
Period for interest not accrued after date of award	30 days
Cowealth Medical | ParentCompany [Member]
Contingencies
Counterclaim for damages filed by the company		$ 35,000,000