Fortress Biotech, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

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

Fair Value Measurements (Narrative) (Details)

v3.26.1

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands, shares in Millions		3 Months Ended
	Jul. 05, 2024	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Fair Value Measurements
Impairments or other adjustments to fair value		$ 0
Common stock warrant liabilities		0		$ 1
Transfer between level 1 to 2		0
Transfer between level 2 to 1		0
Transfer between level 1 to 3		0
Change in fair value of investment		(1,047)	$ 0
Level 3 \| Aevitas
Fair Value Measurements
Fair value option and estimated the fair value		$ 2,600
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value
Fair Value Measurements
Dividend rate percentage	9.375%
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value \| Cyprium
Fair Value Measurements
Dividend rate percentage		9.375%
Change in fair value of investment		$ (7,100)
Avenue \| Common Stock Warrant
Fair Value Measurements
Common stock warrant liabilities		$ 0		$ 1,000
Urica \| Crystalys Therapeutics, Inc
Fair Value Measurements
Additional shares on anti-dilution provisions		2.3
Increased carrying amount		$ 1,000
Urica \| Crystalys Therapeutics, Inc \| Level 3
Fair Value Measurements
Estimated fair value		$ 16,100

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