INCOME TAXES - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 29, 2017 USD ($)	Dec. 29, 2017 USD ($)	Dec. 30, 2016 USD ($)	Jan. 01, 2016 USD ($)	Jan. 02, 2015 USD ($)
Schedule Of Income Taxes [Line Items]
Domestic income from continuing operations before income taxes		$ 178.1	$ 162.4	$ 167.3
Foreign income from continuing operations before income taxes		$ 59.5	35.1	15.6
Statutory corporate federal tax rate		35.00%
Reduced U.S. Corporate Tax Rate	0.21
Reduction in net deferred tax liabilities resulting from the newly enacted corporate tax rate	$ (14.4)
Deemed repatriation impact from newly enacted tax act	50.0
Cash paid for taxes		$ 76.4	63.4	103.5
Taxes Resulting From Repatriation of Foreign Earnings		10.0
Undistributed earnings of foreign subsidiaries	618.6	$ 618.6
Foreign repatriation tax payment period		8 years
Interest and penalties accrued for unrecognized tax benefits		$ 0.2	0.2	0.2
Unrecognized tax benefits	4.7	4.7	$ 5.0	5.3	$ 3.0
Unrecognized tax benefits that would impact effective tax rate within next twelve months	0.3	0.3
Reserves For uncertain tax positions including interest and penalties	2.9	2.9
Foreign Tax Authority [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards	99.7	99.7
Tax Credit Carryforward	52.7	52.7
Undistributed foreign earnings deferred tax liabilities	36.1	36.1
Indefinite Period [Member] | Foreign Tax Authority [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards	79.4	$ 79.4
Minimum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration date		Jan. 01, 2018
Maximum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration date		Dec. 31, 2029
Power Solutions [Member]
Schedule Of Income Taxes [Line Items]
Interest and penalties accrued for unrecognized tax benefits				0.7
Unrecognized tax benefits				$ 3.2
Excluding acquired uncertain tax position [Member]
Schedule Of Income Taxes [Line Items]
Unrecognized tax benefits	$ 2.2	$ 2.2