Accounts Receivable (Components Of Current Finance And Contract Receivables) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance receivables, net of unearned finance charges of $8.3 million and $7.6 million	$ 323.3	$ 285.3
Contract receivables, net of unearned finance charges of $9.7 million and $9.1 million	63.7	51.2
Total current finance and contract receivables	387.0	336.5
Allowances for finance receivables	(8.9)	(8.1)
Allowances for contract receivables	(1.3)	(1.5)
Total	(10.2)	(9.6)
Total current finance and contract receivables - net	376.8	326.9
Finance receivables - net	314.4	277.2
Contract receivables - net	62.4	49.7
Total current finance and contract receivables - net	$ 376.8	$ 326.9