Restructuring and Related Costs (Reconciliation Of Expenses By Type) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2.7	$ 0.3
Restructuring-related costs	0.5	1.1
Total Restructuring and Restructuring Related Costs	3.2	1.4	$ 3.2	$ 1.4
Commercial and Industrial Systems
Restructuring Cost and Reserve [Line Items]
Total Restructuring and Restructuring Related Costs			1.7	0.1
Climate Solutions
Restructuring Cost and Reserve [Line Items]
Total Restructuring and Restructuring Related Costs			1.1	1.3
Power Transmission Solutions
Restructuring Cost and Reserve [Line Items]
Total Restructuring and Restructuring Related Costs			$ 0.4	$ 0.0
Employee termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	1.8	0.2
Facility related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.9	0.1
Other Employment Benefit Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring-related costs	0.5	1.1
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring costs	1.9	0.3
Restructuring-related costs	0.5	0.5
Total Restructuring and Restructuring Related Costs	2.4	0.8
Cost of Sales | Employee termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	1.2	0.2
Cost of Sales | Facility related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.7	0.1
Cost of Sales | Other Employment Benefit Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring-related costs	0.5	0.5
Operating Expense
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.8	0.0
Restructuring-related costs	0.0	0.6
Total Restructuring and Restructuring Related Costs	0.8	0.6
Operating Expense | Employee termination expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.6	0.0
Operating Expense | Facility related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.2	0.0
Operating Expense | Other Employment Benefit Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring-related costs	$ 0.0	$ 0.6