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Fair Value (Tables)

9 Months Ended

Oct. 31, 2022

Fair Value Disclosures [Abstract]

Financial Assets Measured at Fair Value on Recurring Basis

The Company’s financial assets that are accounted for at fair value on a recurring basis are presented in the tables below:

		Marketable Securities Fair Value as of
		October 31, 2022
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	141,397			$	—			$	141,397
Municipal and pre-refunded municipal bonds			—				84,509				—				84,509
Mutual funds, held in rabbi trust			10,760				—				—				10,760
US Treasury securities			—				4,695				—				4,695
Certificates of deposit			—				249				—				249
		$	10,760			$	230,850			$	—			$	241,610

		Marketable Securities Fair Value as of
		January 31, 2022
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	231,215			$	—			$	231,215
Municipal and pre-refunded municipal bonds			—				188,334				—				188,334
Mutual funds, held in rabbi trust			11,813				—				—				11,813
US Treasury securities			—				20,137				—				20,137
Commercial paper			—				10,884				—				10,884
Federal government agencies			—				345				—				345
Certificates of deposit			—				249				—				249
		$	11,813			$	451,164			$	—			$	462,977

		Marketable Securities Fair Value as of
		October 31, 2021
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	227,436			$	—			$	227,436
Municipal and pre-refunded municipal bonds			—				193,355				—				193,355
Mutual funds, held in rabbi trust			12,081				—				—				12,081
US Treasury securities			21,587				—				—				21,587
Commercial paper			—				3,099				—				3,099
Federal government agencies			348				—				—				348
Certificates of deposit			—				249				—				249
		$	34,016			$	424,139			$	—			$	458,155

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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