Pension Plans (Narrative) (Details) (USD $) In Millions	9 Months Ended		12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Dec. 31, 2011	Jan. 01, 2011
Pension Plans [Abstract]
Estimated net actuarial loss that will be amortized from accumulated other comprehensive income (loss) into net periodic benefit cost			$ 3.3
Estimated net prior service cost that will be amortized from accumulated other comprehensive income (loss) into net periodic benefit cost			0.2
Contribution to defined benefit pension plans	5.7	3.9	7.0	4.1
Expected contribution to defined benefit pension plans	$ 1.3