Other Balance Sheet Details (Details 2) (USD $)	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Accrued warranty
Beginning balance	$ 54,372,000	$ 40,196,000	$ 37,258,000
Acquired	0	24,041,000	0
Provisions	18,451,000	15,353,000	19,286,000
Settlements	25,541,000	25,218,000	16,348,000
Balance at end of period	47,282,000	54,372,000	40,196,000
Reduction in warranty liability	$ 6,900,000