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Non-Marketable Securities - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Non-marketable Securities
Purchase of non-marketable securities	$ 10,300,000	$ 35,900,000
Proceeds from non-marketable securities	27,114,000	4,662,000
Alternative investments measured using the equity method	0		$ 0
Impairments on equity securities	0	0
Unrealized gains (losses)	$ 49,700	$ 200,000

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Disclosure - Non-Marketable Securities (Narrative) [Abstract]

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Amount of cash outflow to acquire non-marketable securities.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section S99
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
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Amount of impairment loss on investment in equity security without readily determinable fair value.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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