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Fair Value Measurements - Reconciliation of Changes in Debt Securities (Details) $ in Thousands	6 Months Ended
	Jul. 31, 2022 USD ($)
Debt Securities, Available For Sale, Reconciliation [Roll Forward]
Balance at January 30, 2022	$ 12,872
Increase in credit loss reserve	(50)
Interest accrued	581
Balance at July 31, 2022	$ 13,403

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- Definition

Debt Securities, Available For Sale, Reconciliation [Roll Forward]

+ References

No definition available.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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- Definition

Amount of increase (decrease) in allowance for credit loss of 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 9
-URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455

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- Definition

Amount of interest income on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), from change in present value of expected cash flows, attributable to passage of time.

+ References

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