(2) Notes Payable (Detail) (USD $) In Millions, unless otherwise specified	45 Months Ended	60 Months Ended
	Sep. 30, 2012	Oct. 17, 2017	Oct. 17, 2012	Dec. 30, 2008
Other Long-term Debt (in Dollars)			$ 165	$ 40
Line of Credit Facility (in Dollars)	30
Other Long-term Debt, Current (in Dollars)	10
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	0.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	2.50%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum	2.75%
Loan Closing Costs (in Dollars)			$ 1.5
Leverage Ration Hurdle		0.02
Leverage Ratio LT 1.5		1.5
LIBOR plus rate if Ratio LT 1.5		2.50%
Leverage Ratio 1.5-2		2
LIBOR plus rate if Ratio 1.5 - 2		3.00%
Leverage Ratio GT 2		2
Maximum Leverage Ratio		2.75
Line of Credit Commitment Fee Basis Points		50
Line of Credit Commitment Fee Basis Point Minimum		37.5
LOC Percentage Borrowed for Lower Commitment fee		33.00%