Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) (USD $) | 3 Months Ended | 0 Months Ended | 3 Months Ended | | |
Jan. 31, 2015 | Jan. 10, 2014 | Nov. 05, 2014 | Apr. 30, 2014 | Oct. 31, 2014 | Feb. 09, 2014 |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Covenant Fixed Charge Coverage Ratio Minimum | 2 | | | | | |
Preferred Stock, Dividend Rate, Percentage | 7.63% | | | | | |
Debt Instrument, Redemption, Period One [Member] | Redemption With Net Cash Proceeds From Certain Equity Offerings [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | 107.00% | | | | |
Debt Instrument, Redemption, Period One [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | Maximum [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | | 35.00% | | | | |
Debt Instrument, Redemption, Period One [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | 100.00% | | | | |
Debt Instrument, Redemption, Period One [Member] | Senior Notes [Member] | 8.0% Senior Notes Due 2019 [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | | 100.00% | | | |
Debt Instrument, Redemption, Period Two [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | 103.50% | | | | |
Debt Instrument, Redemption, Period Two [Member] | Senior Notes [Member] | 8.0% Senior Notes Due 2019 [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | | 100.00% | | | |
Debt Instrument, Redemption, Period Three [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | 101.75% | | | | |
Debt Instrument, Redemption, Period Four [Member] | Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Redemption Price, Percentage | | 100.00% | | | | |
Senior Secured Notes [Member] | The 5.0% 2021 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | 5.00% | | | | 5.00% | |
Senior Secured Notes [Member] | The 2.0% 2021 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | 2.00% | | | | 2.00% | |
Senior Secured Notes [Member] | The 7.25% 2020 Notes and 9.125% 2020 Notes [Member] | Letter of Credit [Member] | Restricted Cash [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Cash Collateral for Borrowed Securities (in Dollars) | 5,100,000 | | | | 5,600,000 | |
Senior Secured Notes [Member] | The 7.25% 2020 Notes and 9.125% 2020 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | 7.25% | | | | | |
Debt Instrument, Collateral Amount (in Dollars) | 738,900,000 | | | | | |
Cash Collateral for Borrowed Securities (in Dollars) | 233,600,000 | | | | | |
Senior Secured Notes [Member] | The 2.0% 2021 Notes Member and 5.0% 2021 Notes [Member] | Secured Group [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures (in Dollars) | 69,200,000 | | | | | |
Senior Secured Notes [Member] | The 2.0% 2021 Notes Member and 5.0% 2021 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Collateral Amount (in Dollars) | 131,100,000 | | | | | |
Senior Notes [Member] | The 7.0% 2019 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | 7.00% | | | | |
Debt Instrument, Face Amount (in Dollars) | | 150,000,000 | | | | |
Proceeds from Issuance of Long-term Debt (in Dollars) | | 147,800,000 | | | | |
Senior Notes [Member] | The 6.25% 2015 Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | 6.25% |
Debt Instrument, Repurchased Face Amount (in Dollars) | | | | | | 21,400,000 |
Gains (Losses) on Extinguishment of Debt (in Dollars) | | | | -1,200,000 | | |
Senior Notes [Member] | 8.0% Senior Notes Due 2019 [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 8.00% | | | |
Debt Instrument, Face Amount (in Dollars) | | | 250,000,000 | | | |
Proceeds from Issuance of Long-term Debt (in Dollars) | | | 245,700,000 | | | |
Senior Notes [Member] | | | | | | |
Note 11 - Senior Secured, Senior, Senior Amortizing, and Senior Exchangeable Notes (Details) [Line Items] | | | | | | |
Debt Collateral (in Dollars) | 40,800,000 | | | | | |