Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) - Senior Secured, Senior and Senior Subordinated Notes - USD ($) $ in Thousands	Jan. 31, 2016	Oct. 31, 2015
Senior Secured Notes [Member]
Senior Secured Notes:
Senior Notes	$ 981,716	$ 981,346
Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Senior Secured Notes:
Senior Notes	607,575	780,319
The 7.25% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Secured Notes:
Senior Notes	577,000	577,000
The 9.125% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Secured Notes:
Senior Notes	220,000	220,000
The 2.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Secured Notes:
Senior Notes	53,141	53,139
The 5.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Secured Notes:
Senior Notes	131,575	131,207
The 6.25% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Senior Secured Notes:
Senior Notes		172,744
The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Senior Secured Notes:
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 Secured Notes:
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 Secured Notes:
Senior Notes	150,000	150,000
8.0% Senior Notes Due 2019 [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes And Senior Exchangeable Notes [Member]
Senior Secured Notes:
Senior Notes	250,000	250,000
The 11.0% 2017 Amortizing Note [Member] | Senior Amortizing Notes [Member]
Senior Secured Notes:
Senior Notes	10,516	12,811
Senior Exchangeable Notes Due 2017 [Member] | Senior Amortizing Notes [Member]
Senior Secured Notes:
Senior Notes	$ 74,720	$ 73,771