Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Oct. 03, 2015	Oct. 04, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	24.40%	32.10%
Non-cash gain related to correction of deferred tax liabilities	$ 10.2
Current deferred tax assets	256.6		$ 253.4
Current deferred tax Liabilities	8.3		13.1
Non-current deferred tax liabilities	$ 729.8		$ 779.3