Other Balance Sheet Details (Details) (USD $)	6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Oct. 31, 2011
Other long-term assets
Maintenance spares inventory, net	$ 52,130,000		$ 50,442,000
Deferred debt issuance costs, net	20,814,000		23,481,000
Embedded redemption feature	2,290,000		7,020,000
Restricted cash	29,265,000		27,507,000
Other	4,997,000		5,673,000
Total	109,496,000		114,123,000
Other Balance Sheet Details (Textuals) [Abstract]
Amortization of debt issuance costs included in interest expense	$ 2,700,000	$ 2,700,000