Note 11 - Senior Secured, Senior and Senior Subordinated Notes (Details) - USD ($) $ in Thousands	Jul. 31, 2016	Oct. 31, 2015
The 7.25% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	$ 577,000	$ 577,000
The 9.125% 2020 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	220,000	220,000
The 2.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	53,146	53,139
The 5.0% 2021 Notes [Member] | Senior Secured Notes [Member]
Senior Notes	132,322	131,207
The 6.25% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes		172,744
The 7.5% 2016 Notes [Member] | Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes		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	250,000
The 11.0% 2017 Amortizing Note [Member] | Senior Amortizing Notes [Member]
Senior Notes	8,094	12,811
Senior Exchangeable Notes Due 2017 [Member] | Senior Amortizing Notes [Member]
Senior Notes	76,650	73,771
Senior Secured Notes [Member]
Senior Notes	982,468	981,346
Unsecured Senior Notes Excluding Senior Amortizing Notes and Senior Exchangeable Notes [Member]
Senior Notes	$ 521,043	$ 780,319