Finance Receivables (Changes In Allowance For Credit Losses On Finance Receivables) (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jun. 26, 2011	Jul. 01, 2012	Jun. 26, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	$ 122,503,000	$ 159,684,000	$ 125,449,000	$ 173,589,000
Provision for credit losses	(5,259,000)	(6,790,000)	3,754,000	(1,184,000)
Charge-offs	(17,054,000)	(23,233,000)	(42,906,000)	(58,424,000)
Recoveries	14,058,000	14,743,000	27,951,000	30,423,000
Balance, end of period	114,248,000	144,404,000	114,248,000	144,404,000
Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	112,857,000	141,704,000	116,112,000	157,791,000
Provision for credit losses	(3,681,000)	(2,596,000)	5,023,000	843,000
Charge-offs	(17,054,000)	(22,903,000)	(42,906,000)	(58,094,000)
Recoveries	14,058,000	14,743,000	27,951,000	30,408,000
Balance, end of period	106,180,000	130,948,000	106,180,000	130,948,000
Wholesale [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance, beginning of period	9,646,000	17,980,000	9,337,000	15,798,000
Provision for credit losses	(1,578,000)	(4,194,000)	(1,269,000)	(2,027,000)
Charge-offs		(330,000)		(330,000)
Recoveries				15,000
Balance, end of period	$ 8,068,000	$ 13,456,000	$ 8,068,000	$ 13,456,000