Operating Lease Commitments (Operating Leases Of Lessee) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 30, 2011	Dec. 31, 2010	Jan. 01, 2010
Operating Lease Commitments [Abstract]
2012	$ 15.3
2013	10.4
2014	7.7
2015	6.5
2016	6.0
2017 and thereafter	1.8
Total minimum lease payments	47.7
Total rental expense	$ 17.4	$ 12.7	$ 11.1

The total of future contractually required payments on leases defined as operating.

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For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within one year of the balance sheet date relating to leases defined as operating.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fifth year of the balance sheet date relating to leases defined as operating.

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For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the fourth year of the balance sheet date relating to leases defined as operating.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the third year of the balance sheet date relating to leases defined as operating.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the second year of the balance sheet date relating to leases defined as operating.

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- Definition

For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due after the fifth year from the balance sheet date on leases defined as operating.

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