Acquisitions and Divestitures (Schedule of Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Business Acquisition [Line Items]
Basic Earnings Per Share as Reported (in dollars per shares)	$ 1.02	$ 1.33	$ 1.27	$ 0.93	$ (0.43)	$ 1.42	$ 1.40	$ 0.81	$ 4.55	$ 3.21	$ 0.69
Diluted Earnings Per Share as Reported (in dollars per shares)	$ 1.01	$ 1.32	$ 1.26	$ 0.93	$ (0.43)	$ 1.41	$ 1.39	$ 0.81	$ 4.52	$ 3.18	$ 0.69
Power Transmission Solutions
Business Acquisition [Line Items]
Pro Forma Net Sales										$ 3,558.3	$ 3,864.4
Pro Forma Net Income Attributable to the Company										$ 174.8	$ 63.1
Basic Earnings Per Share as Reported (in dollars per shares)										$ 3.21	$ 0.69
Pro Forma Basic Earnings Per Share (in dollars per shares)										3.91	1.40
Diluted Earnings Per Share as Reported (in dollars per shares)										3.18	0.69
Pro Forma Diluted Earnings Per Share (in dollars per shares)										$ 3.88	$ 1.39
Benshaw, Hy-Bon, Cemp and RAM [Member]
Business Acquisition [Line Items]
Pro Forma Net Sales											$ 3,291.2
Pro Forma Net Income Attributable to the Company											$ 28.8
Basic Earnings Per Share as Reported (in dollars per shares)											$ 0.69
Pro Forma Basic Earnings Per Share (in dollars per shares)											0.64
Diluted Earnings Per Share as Reported (in dollars per shares)											0.69
Pro Forma Diluted Earnings Per Share (in dollars per shares)											$ 0.64