v3.26.1

Business Segment Information - Additional Information (Details) $ in Thousands		3 Months Ended	6 Months Ended
	Feb. 02, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($) segment	Mar. 31, 2025 USD ($)
Segment Reporting Information [Line Items]
Reportable segments \| segment			2
Loss on divestiture of businesses			$ 0	$ 35,539
OneOncology
Segment Reporting Information [Line Items]
Remeasurement gain related to OneOncology acquisition	$ 1,100,000
Segment Reconciling Items \| Distribution of prescription opioid medications
Segment Reporting Information [Line Items]
Settlement accrual reduction		$ 86,800

Amount of gain from remeasurement of acquisition-date fair value of equity interest in acquiree held by acquirer immediately before acquisition date in business combination achieved in stages.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Cencora, Inc. 10-Q