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Pay vs Performance Disclosure - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Pay vs Performance Disclosure    
Pay vs Performance Disclosure, Table Pay Versus Performance Table
Year
Summary
Compensation
Table Total for
PEO (1)
Compensation
Actually Paid
to PEO (1)
Average
Summary
Compensation
Table Total
for Non-PEO
NEOs (2)
Average
Compensation
Actually Paid
to Non-PEO
NEOs (2)
Value of Initial Fixed $100
Investment Based On:
Net
Income
($M)
Adjusted
EBITDAR
($M) (4)
Total
Shareholder
Return
Peer Group
Total
Shareholder
Return (3)
2025
$6,090,004
$(3,171,355)
$2,026,300
$216,369
$55
$105
$230
$709
2024
$6,939,257
$18,696,908
$2,493,471
$4,440,157
$106
$94
$300
$659
  
Company Selected Measure Name Adjusted EBITDAR  
Named Executive Officers, Footnote Reflects compensation for our CEO, Marty Bonick, who served as our Principal Executive Officer ("PEO") in 2024 and 2025. For both years presented, reflects compensation for Alfred Lumsdaine, Stephen C. Petrovich, David Schultz and Ethan Chernin, and, with respect to 2025, additionally reflects compensation for David Caspers, as shown in the Summary Compensation Table above.  
Peer Group Issuers, Footnote Peer Group used for TSR comparisons reflects the S&P Health Care Index. TSR calculation assumes an initial investment of $100 at the market close of
July 18, 2024, the date our stock commenced trading on the NYSE. Data for the S&P Health Care Index assumes reinvestment of dividends.
  
PEO Total Compensation Amount $ 6,090,004 $ 6,939,257
PEO Actually Paid Compensation Amount $ (3,171,355) 18,696,908
Adjustment To PEO Compensation, Footnote To calculate CAP for our PEO and other NEOs, the following adjustments were made to Summary Compensation Table total
compensation for the year ended December 31, 2025.
Adjustments
PEO
Other NEOs
Summary Compensation Table Total
$6,090,004
$2,026,300
Deduction for amount reported in “Stock Awards” column of the Summary Compensation Table
(5,000,004)
(1,185,011)
Addition of fair value at fiscal year (FY) end of equity awards granted during the FY that remained
outstanding
2,905,859
566,773
Addition of fair value at vesting date of equity awards granted during the FY that vested during the FY
—
43,245
Addition of change in fair value at FY end versus prior FY end for awards granted in prior FY that
remained outstanding
(5,849,014)
(996,308)
Addition of change in fair value at vesting date versus prior FY end for awards granted in prior FY that
vested during the FY
(1,318,200)
(238,630)
Compensation Actually Paid
$(3,171,355)
$216,369
  
Non-PEO NEO Average Total Compensation Amount $ 2,026,300 2,493,471
Non-PEO NEO Average Compensation Actually Paid Amount $ 216,369 4,440,157
Adjustment to Non-PEO NEO Compensation Footnote To calculate CAP for our PEO and other NEOs, the following adjustments were made to Summary Compensation Table total
compensation for the year ended December 31, 2025.
Adjustments
PEO
Other NEOs
Summary Compensation Table Total
$6,090,004
$2,026,300
Deduction for amount reported in “Stock Awards” column of the Summary Compensation Table
(5,000,004)
(1,185,011)
Addition of fair value at fiscal year (FY) end of equity awards granted during the FY that remained
outstanding
2,905,859
566,773
Addition of fair value at vesting date of equity awards granted during the FY that vested during the FY
—
43,245
Addition of change in fair value at FY end versus prior FY end for awards granted in prior FY that
remained outstanding
(5,849,014)
(996,308)
Addition of change in fair value at vesting date versus prior FY end for awards granted in prior FY that
vested during the FY
(1,318,200)
(238,630)
Compensation Actually Paid
$(3,171,355)
$216,369
  
Compensation Actually Paid vs. Total Shareholder Return CAP and Cumulative TSR / Cumulative TSR of the Peer Group
CAP vs ARDT and Peer TSR.jpg
  
Compensation Actually Paid vs. Net Income CAP and Net Income
CAP vs ARDT Net Income.jpg
  
Compensation Actually Paid vs. Company Selected Measure CAP and Adjusted EBITDAR
CAP vs Adj EBITDAR.jpg
  
Total Shareholder Return Vs Peer Group CAP and Cumulative TSR / Cumulative TSR of the Peer Group
CAP vs ARDT and Peer TSR.jpg
  
Tabular List, Table Adjusted EBITDAR
2.Adjusted EBITDAR margin
3.Net revenue
  
Total Shareholder Return Amount $ 55 106
Peer Group Total Shareholder Return Amount 105 94
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest $ 230 $ 300
Company Selected Measure Amount 709 659
PEO Name Marty Bonick Marty Bonick,
Additional 402(v) Disclosure Measurement date equity fair values are calculated with assumptions derived on a basis consistent with those used for
grant date fair value purposes. Restricted stock units are valued based on the closing stock price on the relevant
measurement date. Performance stock units subject to non-market-based conditions are valued based on revised
assumptions of the probable payout on the applicable measurement dates and the closing stock price on that date.
  
Measure:: 1    
Pay vs Performance Disclosure    
Name Adjusted EBITDAR  
Non-GAAP Measure Description The Company-selected measure is Adjusted EBITDAR, as defined in the "Supplemental Non-GAAP Valuation Measure" section in the Company’s
Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC.
  
Measure:: 2    
Pay vs Performance Disclosure    
Name Adjusted EBITDAR margin  
Measure:: 3    
Pay vs Performance Disclosure    
Name Net revenue  
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount $ (5,000,004)  
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount 2,905,859  
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount (5,849,014)  
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount 0  
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount (1,318,200)  
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount (1,185,011)  
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount 566,773  
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount (996,308)  
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount 43,245  
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year    
Pay vs Performance Disclosure    
Adjustment to Compensation, Amount $ (238,630)