Self-Insured Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Other Liabilities Disclosure [Abstract]
Professional fees and general liability losses	$ 17.0	$ 18.5
Worker's compensation cost	$ 2.3	$ 2.4

Professional Fees And General Liability Gain (loss)

No definition available.

Name:	ardt_ProfessionalFeesAndGeneralLiabilityGainLoss
Namespace Prefix:	ardt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration