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SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Detail) - Fair Value, Recurring - USD ($) $ in Thousands | May 31, 2022 | Aug. 31, 2021
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Acquisition-related contingent consideration obligations | $ 0 | $ 3,217
Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Acquisition-related contingent consideration obligations | 0 | 0
Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Acquisition-related contingent consideration obligations | 0 | 0
Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Acquisition-related contingent consideration obligations | 0 | 3,217
Cash and cash equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 42,353 | 36,984
Cash and cash equivalents | Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 42,353 | 36,984
Cash and cash equivalents | Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 0 | 0
Cash and cash equivalents | Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 0 | 0
Short-term investments |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 79,801 | 86,484
Short-term investments | Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 79,801 | 86,484
Short-term investments | Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | 0 | 0
Short-term investments | Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Assets, fair value disclosure | $ 0 | $ 0

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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 -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Fair value of financial and nonfinancial obligations. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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