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Investments - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)	Sep. 30, 2023 Security	Dec. 31, 2022 Security
Marketable Securities [Line Items]
Number of available-for-sale investment securities in unrealized loss position | Security		29	43
Proceeds from sale of available-for-sale securities	$ 183.0
Available-for-sale securities, realized gain loss	$ 0.5

X

- Definition

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

+ References

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-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
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-Publisher FASB
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- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of cash inflow from sale 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
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