Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended			9 Months Ended	3 Months Ended			9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010	Dec. 31, 2010	Oct. 01, 2011 Secured Asset-Based Facility [Member]	Apr. 02, 2011 Terminated Secured Asset-Based Facility [Member]	Oct. 01, 2011 Senior Notes Due 2016 [Member]	Oct. 02, 2010 Senior Notes Due 2016 [Member]	Oct. 01, 2011 Senior Notes Due 2016 [Member]	Oct. 02, 2010 Senior Notes Due 2016 [Member]	Oct. 01, 2011 Senior Notes Due 2016 [Member]	Dec. 31, 2010 Senior Notes Due 2016 [Member]	Oct. 01, 2011 Notes Due 2027 [Member]	Oct. 02, 2010 Notes Due 2027 [Member]	Oct. 01, 2011 Notes Due 2027 [Member]	Oct. 02, 2010 Notes Due 2027 [Member]	Oct. 01, 2011 Notes Due 2027 [Member]	Dec. 31, 2010 Notes Due 2027 [Member]	Oct. 01, 2011 Debentures Due 2023 [Member]	Oct. 02, 2010 Debentures Due 2023 [Member]	Oct. 01, 2011 Debentures Due 2023 [Member]	Oct. 02, 2010 Debentures Due 2023 [Member]	Oct. 01, 2011 Debentures Due 2023 [Member]	Dec. 31, 2010 Debentures Due 2023 [Member]	Oct. 01, 2011 Senior Notes Due 2013 [Member]	Oct. 02, 2010 Senior Notes Due 2013 [Member]	Oct. 01, 2011 Senior Notes Due 2013 [Member]	Oct. 02, 2010 Senior Notes Due 2013 [Member]	Oct. 01, 2011 Senior Notes Due 2013 [Member]	Dec. 31, 2010 Senior Notes Due 2013 [Member]	Oct. 01, 2011 Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]	Dec. 31, 2010 Loan With Fond Du Lac County Economic Development Corporation Due 2021 [Member]	Oct. 01, 2011 Notes Payable Through 2015 [Member]	Dec. 31, 2010 Notes Payable Through 2015 [Member]
Short-term debt [Abstract]
Current maturities of long-term debt	$ 1.5		$ 1.5		$ 1.7
Other short-term debt	0.6		0.6		0.5
Total short-term debt	2.1	4.3	2.1	4.3	2.2
Asset-Based Credit Facility [Abstract]
Maximum borrowing capacity						300.0	400.0
Expiration date						March 2016	May 2012
Borrowing base						266.6
Available borrowing capacity						242.9
Letters of credit outstanding						23.7
Maximum amount of letters of credit allowed						125.0
Facility fee description						25.0 to 62.5 basis points per annum, which is adjusted based on a leverage ratio
Facility fee (in hundredths)						37.50%
Interest rate terms						The Company has multiple borrowing options, including borrowing at a rate tied to adjusted LIBOR plus a spread of 225 to 300 basis points, which is adjusted based on a leverage ratio. The borrowing spread was 250 basis points as of October 1, 2011. The Company may also borrow at the highest of the following, plus a spread of 125 to 200 basis points, which is adjusted based on a leverage ratio 150 basis points as of October 1, 2011: the Federal Funds rate plus 0.50 percent, the Prime Rate established by JPMorgan Chase Bank, N.A. or the one month adjusted LIBOR rate plus 1.00 percent
Covenant requirements						Maintain a fixed charge coverage ratio, as defined in the agreement, of greater than 1.0 times, whenever unused borrowing capacity plus certain cash balances together representing Availability, falls below 37.5 million. When the fixed charge covenant ratio is below 1.0 times, the Company is required to maintain at least 37.5 million of Availability.
Write-off of deferred debt issuance costs							1.1
Long-term Debt [Abstract]
Long-term debt, gross	702.7		702.7		830.1							300.9	341.6					167.2	199.2					114.4	124.6					73.5	117.2	42.6	42.0	4.1	5.5
Current maturities of long-term debt	(1.5)		(1.5)		(1.7)
Long-term debt, net	701.2	829.8	701.2	829.8	828.4
Interest rate (in hundredths)												11.25%	11.25%					7.125%	7.125%					7.375%	7.375%					11.75%	11.75%	2.00%	2.00%
Interest rate, maximum (in hundredths)																																		2.649%	2.649%
Due date												2016	2016					2027	2027					2023	2023					2013	2013	2021	2021	2015	2015
Discount on long-term debt												6.5	8.4					0.6	0.8					0.3	0.4							7.4	8.0
Extinguishment of Debt [Line Items]
Long-term debt repurchased	85.0	7.0	128.7	34.8				38.6	0	42.6	0			19.1	0	32.1	0			10.3	0	10.3	0			17.0	7.0	43.7	34.8
Loss on early extinguishment of debt	$ (11.7)	$ (1.1)	$ (16.9)	$ (5.5)