Note 11 - Senior Secured, Senior, Senior Exchangeable, and Senior Subordinated Amortizing Notes (Details) (USD $)	3 Months Ended	6 Months Ended		0 Months Ended																		0 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2014	Apr. 30, 2014	Feb. 15, 2014	Jan. 10, 2014 Redemption With Net Cash Proceeds From Certain Equity Offerings [Member] Debt Instrument, Redemption, Period One [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Jan. 10, 2014 Debt Instrument, Redemption, Period One [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Jan. 10, 2014 Debt Instrument, Redemption, Period One [Member] Maximum [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Jan. 10, 2014 Debt Instrument, Redemption, Period Two [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Jan. 10, 2014 Debt Instrument, Redemption, Period Three [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Jan. 10, 2014 Debt Instrument, Redemption, Period Four [Member] Senior Notes [Member] The 7.0% 2019 Notes [Member]	Apr. 30, 2014 Secured Group [Member] Senior Secured Notes [Member] The 2.0% 2021 Notes Member and 5.0% 2021 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 5.0% 2021 Notes [Member]	Oct. 31, 2013 Senior Secured Notes [Member] The 5.0% 2021 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 2.0% 2021 Notes [Member]	Oct. 31, 2013 Senior Secured Notes [Member] The 2.0% 2021 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 7.25% 2020 Notes [Member]	Oct. 31, 2013 Senior Secured Notes [Member] The 7.25% 2020 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 9.125% 2020 Notes [Member]	Oct. 31, 2013 Senior Secured Notes [Member] The 9.125% 2020 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 7.25% 2020 Notes and 9.125% 2020 Notes [Member] Letter of Credit [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 7.25% 2020 Notes and 9.125% 2020 Notes [Member]	Apr. 30, 2014 Senior Secured Notes [Member] The 2.0% 2021 Notes Member and 5.0% 2021 Notes [Member]	Jan. 10, 2014 Senior Notes [Member] The 7.0% 2019 Notes [Member]	Apr. 30, 2014 Senior Notes [Member] The 6.25% 2015 Notes [Member]	Apr. 30, 2014 Senior Notes [Member] The 6.25% 2015 Notes [Member]	Feb. 09, 2014 Senior Notes [Member] The 6.25% 2015 Notes [Member]	Apr. 30, 2014 Senior Notes [Member]
Note 11 - Senior Secured, Senior, Senior Exchangeable, and Senior Subordinated Amortizing Notes (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			7.25%								5.00%	5.00%	2.00%	2.00%	7.25%	7.25%	9.125%	9.125%				7.00%			6.25%
Debt Covenant Fixed Charge Coverage Ratio Minimum	2.0	2.0
Preferred Stock, Dividend Rate, Percentage		7.625%
Debt Collateral (in Dollars)																				$ 625,500,000	$ 119,200,000					$ 76,300,000
Cash Collateral for Borrowed Securities (in Dollars)																			5,200,000	166,900,000
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures (in Dollars)										39,300,000
Debt Instrument, Face Amount (in Dollars)																						150,000,000
Proceeds from Issuance of Long-term Debt (in Dollars)																						147,800,000
Debt Instrument, Redemption Price, Percentage				107.00%	100.00%		103.50%	101.75%	100.00%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed						35.00%
Debt Instrument, Repurchased Face Amount (in Dollars)																									21,400,000
Gains (Losses) on Extinguishment of Debt (in Dollars)	$ (1,155,000)	$ (1,155,000)																					$ (1,200,000)	$ (1,200,000)