Cash, Cash Equivalents and Investments (Schedule of Cash and Cash Equivalents and Trading and Available-for-sale Investments) (Details) - USD ($) $ in Thousands	Nov. 30, 2022	Nov. 30, 2021
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 256,277	$ 155,406
Unrealized Gains	0	16
Unrealized Losses	0	0
Total amortized cost basis	256,277	157,357
Total fair value	256,277	157,373
U.S. treasury bonds
Cash, Cash Equivalents and Investments [Line Items]
Amortized Cost Basis		748
Unrealized Gains		9
Unrealized Losses		0
Fair Value		757
Corporate bonds
Cash, Cash Equivalents and Investments [Line Items]
Amortized Cost Basis		1,203
Unrealized Gains		7
Unrealized Losses		0
Fair Value		1,210
Cash
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	229,023	130,371
Money market funds
Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 27,254	$ 25,035

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Cash, Cash Equivalents, And Investments, Cost Basis.

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Cash Cash Equivalents And Investments [Line Items]

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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