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Fair Value Measurements - (Details) - Recurring basis $ in Thousands	Apr. 30, 2021 USD ($)
Fair Value Measurement
Available for sale securities	$ 36,959
Contingent consideration	5,521
Total	42,480
Significant other observable inputs (Level 2)
Fair Value Measurement
Available for sale securities	36,959
Total	36,959
Significant unobservable inputs (Level 3)
Fair Value Measurement
Contingent consideration	5,521
Total	$ 5,521

X

- Definition

Fair value of contingent consideration assets in a business combination.

+ References

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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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
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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.

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