Business Combinations - Additional Information (Detail) - USD ($) $ in Millions			6 Months Ended
	Feb. 13, 2015	Oct. 27, 2014	Jul. 04, 2015
Business Acquisition [Line Items]
Increase in assets			$ 2.3
Decrease in liabilities			(4.4)
Decrease in goodwill			(6.7)
Term Loan [Member]
Business Acquisition [Line Items]
Business acquisition, borrowings			2,200.0
Enterprise Business [Member]
Business Acquisition [Line Items]
Preliminary purchase price		$ 3,450.0
Ownership percentage of the Enterprise Business		100.00%
Business acquisition, borrowings			3,250.0
Business acquisition, consideration paid			3,450.0
Additional consideration paid	$ 48.8
Business acquisition goodwill amount		$ 2,329.0
Enterprise Business [Member] | Term Loan [Member]
Business Acquisition [Line Items]
Business acquisition, borrowings			$ 2,200.0
Senior notes, maturity year			2021
Enterprise Business [Member] | Senior Notes due 2022 [Member]
Business Acquisition [Line Items]
Business acquisition, borrowings			$ 1,050.0
Senior notes, maturity year			2022
Senior notes, stated interest percentage			7.25%