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Fair Value (Tables)

6 Months Ended

Jul. 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
		July 31, 2022
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	167,367			$	—			$	167,367
Municipal and pre-refunded municipal bonds			—				120,502				—				120,502
US Treasury securities			—				12,756				—				12,756
Mutual funds, held in rabbi trust			11,336				—				—				11,336
Federal government agencies			—				338				—				338
Certificates of deposit			—				249				—				249
		$	11,336			$	301,212			$	—			$	312,548

		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
US Treasury securities			—				20,137				—				20,137
Mutual funds, held in rabbi trust			11,813				—				—				11,813
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
		July 31, 2021
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	90,277			$	—			$	90,277
Municipal and pre-refunded municipal bonds			—				162,147				—				162,147
Mutual funds, held in rabbi trust			11,711				—				—				11,711
Commercial paper			—				6,096				—				6,096
		$	11,711			$	258,520			$	—			$	270,231

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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
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