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]

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Significant Accounting Policies (Narrative) (Details)

v3.25.1

Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Accounting Policies [Line Items]
Restricted cash	$ 1,552	$ 2,438
Assets held for sale	1,165	0
Asset impairment	3,692	3,143
Allowance for doubtful accounts	600	500
Unrecognized tax benefits impact effective tax rate	700
Liability related to uncertain tax positions including accrued interest	900	800
Accrued interest related to uncertain tax positions	$ 200	100
Ownership Ratio of preferred Stock and common Stock	1
Qbrexza \| Fair Value Adjustment to Inventory
Accounting Policies [Line Items]
Finished goods inventory, fair value step-up	$ 500	300
Letter of Credit
Accounting Policies [Line Items]
Restricted cash	1,600	2,400
Mustang
Accounting Policies [Line Items]
Asset impairment	$ 3,700
Journey
Accounting Policies [Line Items]
Asset impairment		$ 3,100
Maintains Voting Control
Accounting Policies [Line Items]
Ownership percentage of the subsidiary to consolidate their accounts	100.00%
2024 Oaktree Note
Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	15.39%
Maximum [Member]
Accounting Policies [Line Items]
Ownership percentage of the subsidiary to consolidate their accounts	100.00%

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