Fortress Biotech, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Debt and Interest (Narrative) - 2024 Oaktree Note (Details)

Debt and Interest (Narrative) - 2024 Oaktree Note (Details) $ / shares in Units, $ in Thousands	Jul. 25, 2024 USD ($) $ / shares shares	Dec. 27, 2023	Dec. 31, 2024 USD ($)	Sep. 30, 2024 $ / shares	Jan. 31, 2024 $ / shares shares	Dec. 31, 2023 USD ($)	Aug. 31, 2020 $ / shares shares
Debt Instrument [Line Items]
Debt instrument, aggregate of principal prepayment amount, minimum	$ 5,000
Debt instrument, aggregate of principal prepayment amount in multiples	1,000
Excess proceeds from any of company's subsidiaries other than in connection with certain monetization events	5,000
2024 Oaktree Note
Debt Instrument [Line Items]
Debt instrument face amount	50,000
Proceeds from debt	35,000
Debt instrument, unused borrowing capacity, amount	15,000
Total notes payable, gross	$ 50,000		$ 35,350			$ 0
Debt Instrument, number of interest only period	30 months
Basis spread on variable rate	7.625%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember
Debt instrument, floor rate	2.5
Debt instrument, cap rate	5.75
Interest rate			0.1223%
Debt instrument, percentage of then outstanding principal balance due on a specified date	50.00%
Minimum liquidity to be maintained	$ 7,000
Minimum net sales to be maintained	$ 50,000
Minimum net sale trailing period	12 months
Debt instrument, threshold amount of aggregate common equity or cash distributions to be received	$ 20,000
Outstanding principal balance	$ 10,000
Percentage of amount set forth in annual budget	50.00%
Number of warrants to purchase shares \| shares	506,390
Exercise price of warrants \| $ / shares	$ 2.0735
2024 Oaktree Note \| Financial Milestones
Debt Instrument [Line Items]
Minimum net sales to be maintained	$ 7,500
2024 Oaktree Note \| Scenario when the outstanding principal balance is less than or equal to 10 million
Debt Instrument [Line Items]
Minimum liquidity to be maintained	0
2024 Oaktree Note \| Scenario when the outstanding principal balance is between 10 million and 25 million
Debt Instrument [Line Items]
Minimum liquidity to be maintained	$ 5,000
2020 Oaktree Note
Debt Instrument [Line Items]
Total notes payable, gross			$ 0			50,000
Interest rate			11.00%
Exercise price of warrants \| $ / shares							$ 8.14
SWK Term Loan
Debt Instrument [Line Items]
Total notes payable, gross			$ 25,000			$ 15,000
Basis spread on variable rate		7.75%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]		us-gaap:SecuredOvernightFinancingRateSofrMember
Debt instrument, floor rate		5
Interest rate			14.80%
Direct offering
Debt Instrument [Line Items]
Exercise price of warrants \| $ / shares					$ 3.21
Direct offering \| 2024 Oaktree Note
Debt Instrument [Line Items]
Exercise price of warrants \| $ / shares	$ 1.65			$ 1.65
Minimum [Member] \| 2024 Oaktree Note \| Scenario when the outstanding principal balance is between 10 million and 25 million
Debt Instrument [Line Items]
Outstanding principal balance	$ 10,000
Maximum [Member] \| 2024 Oaktree Note
Debt Instrument [Line Items]
Number of warrants to purchase shares \| shares	500,000
Maximum [Member] \| 2024 Oaktree Note \| Financial Milestones
Debt Instrument [Line Items]
Minimum net sales to be maintained	$ 80,000
Maximum [Member] \| 2024 Oaktree Note \| Scenario when the outstanding principal balance is less than or equal to 10 million
Debt Instrument [Line Items]
Outstanding principal balance	10,000
Maximum [Member] \| 2024 Oaktree Note \| Scenario when the outstanding principal balance is between 10 million and 25 million
Debt Instrument [Line Items]
Outstanding principal balance	$ 25,000
Maximum [Member] \| 2020 Oaktree Note
Debt Instrument [Line Items]
Number of warrants to purchase shares \| shares							100,000
Maximum [Member] \| Direct offering
Debt Instrument [Line Items]
Number of warrants to purchase shares \| shares					3,303,305