Retirement Plans - Schedule of Fair Values of Company's International Plan Assets (Detail) - USD ($) $ in Millions	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	$ 13.7	$ 26.6	$ 7.7
Level 1 [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	3.9	14.7
Level 1 [Member] | Cash and Cash Equivalents [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets		0.5
Level 1 [Member] | Non-U.S. Equity Securities [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	1.6	2.5
Level 1 [Member] | Non-U.S. Bonds [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	2.3	11.7
Level 2 [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	2.7	5.7
Level 2 [Member] | Other [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	0.4	1.3
Level 2 [Member] | Real Estate [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	0.4	2.6
Level 2 [Member] | Insurance Contract [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
Fair values of pension plan assets	$ 1.9	$ 1.8