Retirement Plans - Summary of Change in Benefit Obligations, Change in Plan Assets and Unfunded Status of DB Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 31, 2016	Jan. 02, 2016
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	$ 70.7	$ 77.9
Business combinations	24.8
Service cost	1.8		$ 0.2
Interest cost	2.6	2.8	2.7
Benefit payments	(3.1)	(1.7)
Actuarial (gains) losses	9.3	(5.5)
Settlement gains	(0.1)
Translation gains	(10.0)	(2.8)
Projected benefit obligation at end of year	96.0	70.7	77.9
Change in Plan Assets
Plan assets beginning of year	57.9	59.1
Business combinations	17.7
Employer contributions	2.8	3.0
Plan participant contributions	0.2
Benefit payments	(3.0)	(1.6)
Actual return on plan assets	5.8	(0.4)
Translation losses	(7.6)	(2.2)
Fair value at end of year	73.8	57.9	59.1
Funded Status of Plan
Projected benefit obligation	(70.7)	(77.9)	(77.9)	$ (96.0)	$ (70.7)
Fair value of plan assets	57.9	59.1	59.1	73.8	57.9
Unfunded status				(22.2)	(12.8)
U.S. Plan [Member]
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	16.7	17.4
Interest cost	0.6	0.7	0.3
Benefit payments	(2.7)	(0.7)
Actuarial (gains) losses	0.1	(0.7)
Settlement gains	(0.1)
Projected benefit obligation at end of year	14.6	16.7	17.4
Change in Plan Assets
Plan assets beginning of year	12.7	13.1
Employer contributions	0.5	0.8
Benefit payments	(2.6)	(0.6)
Actual return on plan assets	0.8	(0.6)
Fair value at end of year	11.4	12.7	13.1
Funded Status of Plan
Projected benefit obligation	(16.7)	(17.4)	(17.4)	(14.6)	(16.7)
Fair value of plan assets	12.7	13.1	13.1	11.4	12.7
Unfunded status				(3.2)	(4.0)
International Plans [Member]
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year	54.0	60.5
Business combinations	24.8
Service cost	1.8		0.2
Interest cost	2.0	2.1	2.4
Benefit payments	(0.4)	(1.0)
Actuarial (gains) losses	9.2	(4.8)
Translation gains	(10.0)	(2.8)
Projected benefit obligation at end of year	81.4	54.0	60.5
Change in Plan Assets
Plan assets beginning of year	45.2	46.0
Business combinations	17.7
Employer contributions	2.3	2.2
Plan participant contributions	0.2
Benefit payments	(0.4)	(1.0)
Actual return on plan assets	5.0	0.2
Translation losses	(7.6)	(2.2)
Fair value at end of year	62.4	45.2	46.0
Funded Status of Plan
Projected benefit obligation	(54.0)	(60.5)	(60.5)	(81.4)	(54.0)
Fair value of plan assets	$ 45.2	$ 46.0	$ 46.0	62.4	45.2
Unfunded status				$ (19.0)	$ (8.8)