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No documentation exists for this element. -- Credit Agreement [Member] Credit Agreement [Member] Credit Agreement [Member] Next twenty-four months [Member] [Member] Next twenty-four months [Member] [Member] Next twenty-four months [Member] [Member] Treasury Stock Acquired, Average Cost Per Share Treasury Stock Acquired, Average Cost Per Share Cash flow model expected royalty sales term Cash flow model expected royalty sales term Cash flow model expected royalty sales term Subsequent Events [Abstract] Subsequent Events [Abstract] Other Comprehensive Income Location [Axis] Other Comprehensive Income Location [Axis] Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Income tax receivable Liquidation Basis Of Accounting, Income Taxes Receivable, Current Liquidation Basis Of Accounting, Income Taxes Receivable, Current Equipment Under Lease [Table Text Block] Equipment Under Lease [Table Text Block] Equipment Under Lease [Table Text Block] Total 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