Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	$ 101,329	$ 98,802
Commercial paper
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	5,437	5,117
Commercial paper \| Cash and cash equivalents
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value		2,000
U.S. government agency bonds
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	9,644	10,651
Recurring
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	197,762	186,672
Deferred compensation plan liabilities	1,416	1,422
Total liabilities	1,416	1,422
Recurring \| Level 1
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	43,174	38,110
Deferred compensation plan liabilities	0	0
Total liabilities	0	0
Recurring \| Level 2
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	154,588	148,562
Deferred compensation plan liabilities	1,416	1,422
Total liabilities	1,416	1,422
Recurring \| Level 3
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	0	0
Deferred compensation plan liabilities	0	0
Total liabilities	0	0
Recurring \| Commercial paper
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	5,437	7,111
Recurring \| Commercial paper \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Commercial paper \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	5,437	7,111
Recurring \| Commercial paper \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Corporate notes
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	86,248	83,034
Recurring \| Corporate notes \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Corporate notes \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	86,248	83,034
Recurring \| Corporate notes \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government agency bonds
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	9,644	10,651
Recurring \| U.S. government agency bonds \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government agency bonds \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	9,644	10,651
Recurring \| U.S. government agency bonds \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government securities
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	53,259	47,766
Recurring \| U.S. government securities \| Cash and cash equivalents
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	53,300	47,800
Recurring \| U.S. government securities \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government securities \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	53,259	47,766
Recurring \| U.S. government securities \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Money market funds
Liabilities that are measured at fair value on a recurring basis
Money market funds	43,174	38,110
Recurring \| Money market funds \| Level 1
Liabilities that are measured at fair value on a recurring basis
Money market funds	43,174	38,110
Recurring \| Money market funds \| Level 2
Liabilities that are measured at fair value on a recurring basis
Money market funds	0	0
Recurring \| Money market funds \| Level 3
Liabilities that are measured at fair value on a recurring basis
Money market funds	$ 0	$ 0

Fair value portion of asset recognized for present right to economic benefit.

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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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Fair value portion 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.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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Fair value of financial and nonfinancial obligations.

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