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Basis of Presentation - Additional Information (Details) - USD ($) $ in Thousands	Feb. 28, 2026	Nov. 30, 2025	Aug. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allowance for credit losses for client receivables and contract assets	$ 47,103		$ 32,247
Redeemable noncontrolling interests	475,823	$ 0	0
Accumulated depreciation	$ 3,102,354		$ 2,926,630

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8)(b))
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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 480
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