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Fair Value (Tables)

9 Months Ended

Oct. 31, 2021

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, 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
Treasury bills			21,587				—				—				21,587
Mutual funds, held in rabbi trust			12,081				—				—				12,081
Commercial paper			—				3,099				—				3,099
Federal government agencies			348				—				—				348
Certificates of deposit			—				249				—				249
		$	34,016			$	424,139			$	—			$	458,155

		Marketable Securities Fair Value as of
		January 31, 2021
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	—			$	98,412			$	—			$	98,412
Municipal and pre-refunded municipal bonds			—				180,160				—				180,160
Mutual funds, held in rabbi trust			10,793				—				—				10,793
Commercial paper			—				8,992				—				8,992
		$	10,793			$	287,564			$	—			$	298,357

		Marketable Securities Fair Value as of
		October 31, 2020
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	32			$	—			$	—			$	32
Municipal and pre-refunded municipal bonds			54				—				—				54
Mutual funds, held in rabbi trust			9,266				—				—				9,266
			9,352				—				—				9,352

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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 http://asc.fasb.org/extlink&oid=123874694&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 http://asc.fasb.org/extlink&oid=123874694&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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