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

Stockholders' Equity (Stock-Based Compensation Expense Narrative) (Details)

v3.25.1

Stockholders' Equity (Stock-Based Compensation Expense Narrative) (Details) - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation, additional shares authorized	13.1
Share based compensation, number of shares granted	4.1
Stock based compensation, shares available for issuance	9.0
Stock based compensation, vesting period	10 years
Stock-based compensation expense	$ 32,619	$ 17,029
Stock options, unrecognized compensation expense	1,000
Research and development expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	7,100	3,200
General and administrative expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	25,500	13,800
Restricted Stock Awards and Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	30,900	16,000
Fair value of stock granted	$ 5,800	9,600
Restricted Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock based compensation, vesting period	9 months 18 days
Fair value of stock granted	$ 1,400	1,700
Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock based compensation, vesting period	3 years 4 months 24 days
Fair value of stock granted	$ 3,500	$ 600
2013 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation, additional shares authorized	11.0	0.5
2012 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	$ 100	$ 100

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