Acquisitions - Allocation of Purchase Price to Fair Value of Assets Acquired and Liabilities Assumed (Detail) € in Millions, $ in Millions	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Aug. 11, 2016 USD ($)	Aug. 02, 2016 USD ($)	Aug. 02, 2016 EUR (€)	Jan. 02, 2016 USD ($)
Business Acquisition [Line Items]
Goodwill	$ 1,104.7	$ 1,048.3				$ 631.7
S&D Acquisition [Member]
Business Acquisition [Line Items]
Cash	1.7		$ 1.7
Accounts receivable	51.4		51.4
Inventories	62.5		62.5
Prepaid expenses and other assets	2.3		2.3
Property, plant & equipment	92.2		92.9
Goodwill	117.8		117.1
Intangible assets	119.0		119.0
Other assets	2.2		2.2
Accounts payable and accrued liabilities	(46.9)		(46.7)
Deferred tax liabilities	(43.1)		(43.3)
Other long-term liabilities	(5.5)		(5.5)
Total	353.6		$ 353.6
Eden Acquisition [Member]
Business Acquisition [Line Items]
Cash	19.6			$ 19.6	€ 17.5
Accounts receivable	94.4			95.4
Inventories	17.7			17.7
Prepaid expenses and other assets	6.2			6.2
Property, plant & equipment	98.9			107.1
Goodwill	299.8			299.7
Intangible assets	212.5			213.2
Other assets	2.8			2.8
Deferred tax assets	19.5			19.5
Current maturities of long-term debt	(2.7)			(2.7)
Accounts payable and accrued liabilities	(128.8)			(128.3)
Long-term debt	(3.1)			(3.1)
Deferred tax liabilities	(46.0)			(49.5)
Other long-term liabilities	(14.5)			(21.3)
Total	576.3	$ 576.3		$ 576.3
Aquaterra Corporation [Member]
Business Acquisition [Line Items]
Cash	1.3
Accounts receivable	7.1
Inventories	2.1
Prepaid expenses and other assets	0.4
Property, plant & equipment	12.3
Goodwill	21.2
Intangible assets	15.8
Other assets	0.8
Accounts payable and accrued liabilities	(16.3)
Long-term debt	(0.4)
Other long-term liabilities	(0.3)
Total	44.0
Scenario, Adjustment [Member] | S&D Acquisition [Member]
Business Acquisition [Line Items]
Property, plant & equipment	(0.7)
Goodwill	0.7
Accounts payable and accrued liabilities	(0.2)
Deferred tax liabilities	0.2
Scenario, Adjustment [Member] | Eden Acquisition [Member]
Business Acquisition [Line Items]
Accounts receivable	(1.0)
Property, plant & equipment	(8.2)
Goodwill	0.1
Intangible assets	(0.7)
Accounts payable and accrued liabilities	(0.5)
Deferred tax liabilities	3.5
Other long-term liabilities	$ 6.8