Note 11 - Senior Secured, Senior and Senior Subordinated Notes (Details) - USD ($)	Apr. 30, 2016	Oct. 31, 2015
The 7.25% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	$ 577,000,000	$ 577,000,000
The 9.125% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	220,000,000	220,000,000
The 2.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	53,143,000	53,139,000
The 5.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	131,943,000	131,207,000
The 6.25% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes		172,744,000
The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	86,532	86,532
The 8.625% 2017 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	121,043	121,043
The 7.0% 2019 Notes Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	150,000	150,000
The 8.0% Senior Notes Due 2019 [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	250,000,000	250,000,000
The 11.0% 2017 Amortizing Note [Member] | Senior Amortizing Notes [Member]
Senior Notes	10,516,000	12,811,000
Senior Exchangeable Notes Due 2017 [Member] | Senior Amortizing Notes [Member]
Senior Notes	75,677,000	73,771,000
Senior Secured Notes [Member]
Senior Notes	982,086,000	981,346,000
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	$ 607,575,000	$ 780,319,000