Income Taxes - Narrative (Details) $ in Millions	9 Months Ended
Sep. 30, 2026 USD ($)
Income Tax Disclosure [Abstract]
Payments for tax receivable agreement	$ 38.8
Income tax, liabilities under tax receivable agreement unrecorded	$ 116.0

Income Tax, Unrecorded Tax Receivable Agreement Liability

No definition available.

Name:	amrx_IncomeTaxUnrecordedTaxReceivableAgreementLiability
Namespace Prefix:	amrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant