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Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		$ 412,949
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		(328)
Debt Securities, Available-for-Sale, Current		412,621
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		745
Debt Securities, Available-for-Sale, Current		743
Cash and Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		232,018
Short-Term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		180,603
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		232,018
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		0
Debt Securities, Available-for-Sale, Current		232,018
Fair Value, Inputs, Level 1 [Member] | Cash and Cash Equivalents [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		232,018
Fair Value, Inputs, Level 1 [Member] | Short-Term Investments [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average maturity	1 year 3 months 18 days
Fair Value, Inputs, Level 2 [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		990
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		6
Debt Securities, Available-for-Sale, Current		996
Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		1,281
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		6
Debt Securities, Available-for-Sale, Current		1,287
Fair Value, Inputs, Level 2 [Member] | Short-Term Bond Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		100,242
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		(99)
Debt Securities, Available-for-Sale, Current		100,143
Fair Value, Inputs, Level 2 [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Amortized Cost, Current		78,418
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax		(241)
Debt Securities, Available-for-Sale, Current		78,177
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		0
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		0
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | Short-Term Bond Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		0
Fair Value, Inputs, Level 2 [Member] | Cash and Cash Equivalents [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		0
Fair Value, Inputs, Level 2 [Member] | Short-Term Investments [Member] | Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		996
Fair Value, Inputs, Level 2 [Member] | Short-Term Investments [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		1,287
Fair Value, Inputs, Level 2 [Member] | Short-Term Investments [Member] | Short-Term Bond Mutual Fund [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		100,143
Fair Value, Inputs, Level 2 [Member] | Short-Term Investments [Member] | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Current		$ 78,177

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Debt Securities, Available-For-Sale, Weighted Average Maturity Period

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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), classified as current.

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-Topic 320
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Amount, before tax, of unrealized gain (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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