Segment Reporting - Reconciliation of Segment Assets to Total Assets (Detail) - USD ($) $ in Millions	Dec. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 4,093.1	$ 3,939.7
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	3,006.9	2,921.1
Assets of Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Total assets	$ 1,086.2	$ 1,018.6