Other Balance Sheet Details (Details) (USD $)	9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Oct. 31, 2011
Other long-term assets
Maintenance spares inventory, net	$ 53,764,000		$ 50,442,000
Deferred debt issuance costs, net	19,529,000		23,481,000
Embedded redemption feature	3,860,000		7,020,000
Restricted cash	28,519,000		27,507,000
Other	4,830,000		5,673,000
Total	110,502,000		114,123,000
Other Balance Sheet Details (Textuals) [Abstract]
Amortization of debt issuance costs included in interest expense	$ 4,000,000	$ 4,000,000