Debt (Narrative) (Details)									3 Months Ended
Debt (Narrative) (Details)	May 07, 2026 USD ($)	Sep. 12, 2025 USD ($)	Jul. 01, 2025 USD ($) shares	May 28, 2025 USD ($) shares	Jul. 01, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jan. 18, 2024 USD ($)	Jun. 18, 2020 USD ($) $ / shares	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Line of Credit Facility [Line Items]
Secured term loan facility									$ 220,000,000		$ 220,000,000
Debt issuance costs, net									4,648,000		4,886,000
Long-term debt									215,352,000		$ 215,114,000
For Period from Second Quarter To Fourth Quarter of Fiscal Year 2024 \| Secured Debt
Line of Credit Facility [Line Items]
Debt Instrument, net leverage ratio							6.25
From First Quarter of Fiscal Year 2025 and Thereafter \| Secured Debt
Line of Credit Facility [Line Items]
Debt Instrument, net leverage ratio							5.75
Variable Interest Entity, Primary Beneficiary
Line of Credit Facility [Line Items]
Option to purchase outstanding securities					$ 175,000,000.0	$ 250,000,000.0
Variable Interest Entity, Primary Beneficiary \| Upfront Acquisition Purchase Price
Line of Credit Facility [Line Items]
Option to purchase outstanding securities					$ 135,000,000.0
Subsequent Event \| Variable Interest Entity, Primary Beneficiary \| Upfront Acquisition Purchase Price
Line of Credit Facility [Line Items]
Option to purchase outstanding securities	$ 135,000,000.0
Credit Facilities, Convertible Senior Notes and Old Credit Facilities
Line of Credit Facility [Line Items]
Non-cash amortization of debt issuance costs									300,000	$ 500,000
Convertible Debt [Member]
Line of Credit Facility [Line Items]
Debt instrument, face amount								$ 100,000,000.0
Interest rate on amounts borrowed								4.25%
Proceeds from issuance of convertible debt								$ 96,500,000
Conversion price (in dollars per share) \| $ / shares								$ 23.46
Conversion ratio								0.0426203
Interest expense									$ 0	$ 1,300,000
Credit and Guaranty Agreement \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount							$ 350,000,000.0
Term Loan Facility \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount							190,000,000.0
Secured term loan facility							190,000,000.0
Interest rate on amounts borrowed									8.41%
Effective interest rate									9.05%
Delayed Draw Term Loan Facility \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount							100,000,000.0
Revolving Credit Facility \| Secured Debt
Line of Credit Facility [Line Items]
Interest rate on amounts borrowed									7.16%
Revolving Credit Facility \| Secured Debt \| Base Rate
Line of Credit Facility [Line Items]
Credit facility margin		2.50%
Revolving Credit Facility \| Secured Debt \| SOFR
Line of Credit Facility [Line Items]
Credit facility margin		3.50%
Revolving Credit Facility \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount							60,000,000.0
Secured term loan facility							30,000,000.0
Debt instrument, unused borrowing capacity, amount							$ 30,000,000.0		$ 30,000,000.0
Commitment fee percentage		0.50%
Revolving Credit Facility \| Secured Debt \| If Prepayment Occurs Prior to July 18, 2027
Line of Credit Facility [Line Items]
Debt prepayment premium							1.00%
New Delayed Draw Term Loan Facility
Line of Credit Facility [Line Items]
Debt issuance costs, net									1,100,000
New Delayed Draw Term Loan Facility \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount		$ 150,000,000.0
Debt instrument, extension period		1 year
Commitment fee percentage		1.00%
New Delayed Draw Term Loan Facility \| Secured Debt \| Subsequent Event
Line of Credit Facility [Line Items]
Proceeds from issuance of debt	$ 150,000,000.0
Term Loan Facilities \| Secured Debt \| Base Rate
Line of Credit Facility [Line Items]
Credit facility margin		3.75%
Term Loan Facilities \| Secured Debt \| SOFR
Line of Credit Facility [Line Items]
Credit facility margin		4.75%
Existing Term Loan Facility
Line of Credit Facility [Line Items]
Debt issuance costs, net									500,000
Existing Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt issuance costs, net									$ 200,000
Exchange Agreements \| Convertible Debt [Member]
Line of Credit Facility [Line Items]
Cash payment				$ 99,500,000
Exchange aggregate shares (In shares) \| shares			19,605	4,334,347
Cash payment amount				$ 1,700,000
Long-term debt			$ 500,000

ARTIVION, INC. 10-Q