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Fair Value Measurements (Schedule Of Items Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands | May 31, 2021 | Feb. 28, 2021
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market securities | $ 1,000,497 | $ 685,585
Mutual fund investments | 26,671 | 24,049
Equity Method Investments, Fair Value Disclosure | 40,939 |
Total assets at fair value | $ 1,069,149 | $ 714,196
Percent of total assets at fair value | 100.00% | 100.00%
Percent of total assets | 4.70% | 3.30%
Total liabilities at fair value | $ (7,473) | $ (6,024)
Percent of total liabilities | 0.00% | 0.00%
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market securities | $ 1,000,497 | $ 685,585
Mutual fund investments | 26,671 | 24,049
Equity Method Investments, Fair Value Disclosure | 40,939 |
Total assets at fair value | $ 1,068,107 | $ 709,634
Percent of total assets at fair value | 99.90% | 99.40%
Percent of total assets | 4.70% | 3.30%
Total liabilities at fair value | $ 0 | $ 0
Percent of total liabilities | 0.00% | 0.00%
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market securities | $ 0 | $ 0
Mutual fund investments | 0 | 0
Equity Method Investments, Fair Value Disclosure | 0 |
Total assets at fair value | $ 1,042 | $ 4,562
Percent of total assets at fair value | 0.10% | 0.60%
Percent of total assets | 0.00% | 0.00%
Total liabilities at fair value | $ (7,473) | $ (6,024)
Percent of total liabilities | 0.00% | 0.00%
Designated As Hedging Instrument |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | $ 732 | $ 4,061
Liabilities: Derivative instruments | (7,322) | (6,024)
Designated As Hedging Instrument | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | 0 | 0
Liabilities: Derivative instruments | 0 | 0
Designated As Hedging Instrument | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | 732 | 4,061
Liabilities: Derivative instruments | (7,322) | (6,024)
Not Designated as Hedging Instrument [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | 310 | 501
Liabilities: Derivative instruments | (151) |
Not Designated as Hedging Instrument [Member] | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | 0 | 0
Liabilities: Derivative instruments | 0 |
Not Designated as Hedging Instrument [Member] | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative Asset | 310 | $ 501
Liabilities: Derivative instruments | $ (151) |

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