Acquisitions (2014 Acquisitions) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jun. 30, 2014	Feb. 07, 2014	Jan. 03, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill	$ 1,561.1				$ 1,004.0
Business Acquisition, Pro Forma Information [Abstract]
Basic earnings per share as reported (in dollars per share)	$ 0.81	$ 0.97
Assuming Dilution (in dollars per share)	$ 0.81	$ 0.96
Benshaw and Hy-Bon
Business Acquisition, Pro Forma Information [Abstract]
Pro forma net sales		820.9
Pro forma net income		43.5
Basic earnings per share as reported (in dollars per share)		$ 0.97
Pro forma basic earnings per share (in dollars per share)		$ 0.97
Assuming Dilution (in dollars per share)		$ 0.96
Pro forma diluted earnings per share (in dollars per share)		$ 0.96
Benshaw
Business Acquisition [Line Items]
Payments to acquire business			51.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Current assets			0.5
Trade receivables			10.4
Inventories			22.4
Property, plant and equipment			4.5
Intangible assets			14.6
Goodwill			9.9
Total assets acquired			62.3
Accounts payable			3.7
Current liabilities assumed			2.2
Long-term liabilities assumed			5.4
Net assets acquired			51.0
Hy-Bon
Business Acquisition [Line Items]
Payments to acquire business				78.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Current assets				1.7
Trade receivables				11.5
Inventories				14.3
Property, plant and equipment				8.1
Intangible assets				13.4
Goodwill				40.6
Other assets				0.1
Total assets acquired				89.7
Accounts payable				5.5
Current liabilities assumed				5.1
Long-term liabilities assumed				1.1
Net assets acquired				$ 78.0