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Note 12 - Tangible Equity Units (Details) (USD $)
1 Months Ended 1 Months Ended
Feb. 18, 2014
Apr. 30, 2014
Feb. 15, 2014
Feb. 14, 2011
Feb. 09, 2011
Feb. 18, 2014
Common Class A [Member]
Apr. 30, 2014
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amortizing Notes [Member]
Oct. 31, 2013
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amortizing Notes [Member]
Feb. 09, 2011
Senior Subordinated Amortizing Notes [Member]
The 7.25% Senior Subordinated Amortizing Notes [Member]
Apr. 30, 2014
Senior Subordinated Amortizing Notes [Member]
Oct. 31, 2013
Senior Subordinated Amortizing Notes [Member]
Note 12 - Tangible Equity Units (Details) [Line Items]                      
Tangible Equity Units, Units Issued       450,000 3,000,000            
Debt Instrument, Interest Rate, Stated Percentage     7.25%       7.25% 7.25% 7.25%    
Adjustments To Additional Paid In Capital Issuance Of Prepaid Common Stock Purchase Contracts       $ 68,100,000              
Tangible Equity Units, Cash Installment, Per Note             $ 0.453125        
Tangible Equity Units, Stated Amount   25                  
Tangible Equity Units, Annual Interest Rate             12.072%        
Prepaid Stock Purchase Contracts Shares Settled           6,085,224          
Purchase Contracts Settled 1,276,933                    
Tangible Equity Units, Number of Shares Upon Conversion, Per Unit           4.7655          
Prepaid Stock Purchase Contracts Outstanding 0                    
Senior Notes                   $ 0 $ 2,152,000 [1]
[1] Derived from the audited balance sheet as of October 31, 2013.