Acquisitions - Assets and Liabilities Acquired (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended					0 Months Ended		3 Months Ended	9 Months Ended		0 Months Ended
	Sep. 27, 2014		Sep. 28, 2013	Sep. 27, 2014		Sep. 28, 2013	Dec. 31, 2013		Apr. 30, 2014 Reznor [Member]		Sep. 27, 2014 Reznor [Member]	Sep. 27, 2014 Reznor [Member]	Sep. 28, 2013 Reznor [Member]	Apr. 30, 2014 Reznor [Member] Customer Relationships [Member]	Apr. 30, 2014 Reznor [Member] Completed Technology [Member]	Apr. 30, 2014 Reznor [Member] Trademarks [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Current assets									$ 47.1	[1]
Property and equipment									20.7
Goodwill	474.4	[2]		474.4	[2]		373.5	[2]	105.3
Intangible assets									119.7
Other assets									0.4
Current liabilities									(18.9)	[3]
Deferred income taxes									(11.0)
Other long-term liabilities									(0.7)
Estimated purchase price									262.6
Cash and equivalents acquired									7.0
Accounts receivable acquired									17.2
Inventory acquired									20.5
Other current assets acquired									1.5
Current deferred taxes acquired									0.9
Fair value adjustment of inventory									1.8
Inventory amortization											0.3	1.8
Accounts payable acquired									12.3
Accrued expenses and taxes acquired									6.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Fair Value									119.7					59.6	20.4	39.7
Weighted Average Useful Life									11 years 7 months 6 days					11 years	7 years	20 years
Amortization of intangible assets	14.9		13.2	43.7		38.1					2.6		4.3
Expected annual amortization expense of acquired intangibles											115.4	115.4
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Remainder of 2014											2.6	2.6
2015											10.3	10.3
2016											10.3	10.3
2017											10.3	10.3
2018											10.3	10.3
2019 and thereafter											$ 71.6	$ 71.6

[1] Includes cash of approximately $7.0 million, accounts receivable of approximately $17.2 million, inventories of approximately $20.5 million, prepaid and other current assets of approximately $1.5 million, and current deferred taxes of approximately $0.9 million. Inventories include a fair value adjustment to the historical carrying value of approximately $1.8 million, of which approximately $0.3 million and $1.8 million increased cost of products sold for the third quarter and nine months of 2014, respectively.

[2] The CAS reporting unit did not have goodwill for any periods presented.

[3] Includes accounts payable of approximately $12.3 million and accrued expenses and taxes of approximately $6.6 million.