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Fair Value Measurements - Fair Value of Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Cash and Cash Equivalents	$ 271,458	$ 287,060
Asset-backed securities
Assets:
Cash and Cash Equivalents	0	0
Fair Value, Recurring
Assets:
Total assets	271,905	288,185
Fair Value, Recurring | Money market funds
Assets:
Cash and Cash Equivalents	271,458	287,060
Fair Value, Recurring | Asset-backed securities
Assets:
Available-for-sale investments	447	1,125
Level 1 | Fair Value, Recurring
Assets:
Total assets	271,458	287,060
Level 1 | Fair Value, Recurring | Money market funds
Assets:
Cash and Cash Equivalents	271,458	287,060
Level 1 | Fair Value, Recurring | Asset-backed securities
Assets:
Available-for-sale investments	0	0
Level 2 | Fair Value, Recurring
Assets:
Total assets	447	1,125
Level 2 | Fair Value, Recurring | Money market funds
Assets:
Cash and Cash Equivalents	0	0
Level 2 | Fair Value, Recurring | Asset-backed securities
Assets:
Available-for-sale investments	447	1,125
Level 3 | Fair Value, Recurring
Assets:
Total assets	0	0
Level 3 | Fair Value, Recurring | Money market funds
Assets:
Cash and Cash Equivalents	0	0
Level 3 | Fair Value, Recurring | Asset-backed securities
Assets:
Available-for-sale investments	$ 0	$ 0

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481830/320-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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