Fortress Biotech, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 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 - Exclusive of National Financial Instruments Measured at Fair Value on Recurring Basis (Detail)

v3.19.1

Fair Value Measurements - Exclusive of National Financial Instruments Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Fair value of investment in Caelum	$ 11,056
Total	11,056
Liabilities
Liabilities		$ 10,905
Warrant [Member]
Liabilities
Liabilities		991
Caelum Convertible Notes [Member]
Liabilities
Liabilities		9,914
Fair Value, Inputs, Level 1 [Member]
Assets
Fair value of investment in Caelum	0
Total	0
Liabilities
Liabilities		0
Fair Value, Inputs, Level 1 [Member] \| Warrant [Member]
Liabilities
Liabilities		0
Fair Value, Inputs, Level 1 [Member] \| Caelum Convertible Notes [Member]
Liabilities
Liabilities		0
Fair Value, Inputs, Level 2 [Member]
Assets
Fair value of investment in Caelum	0
Total	0
Liabilities
Liabilities		0
Fair Value, Inputs, Level 2 [Member] \| Warrant [Member]
Liabilities
Liabilities		0
Fair Value, Inputs, Level 2 [Member] \| Caelum Convertible Notes [Member]
Liabilities
Liabilities		0
Fair Value, Inputs, Level 3 [Member]
Assets
Fair value of investment in Caelum	11,056
Total	$ 11,056
Liabilities
Liabilities		10,905
Fair Value, Inputs, Level 3 [Member] \| Warrant [Member]
Liabilities
Liabilities		991
Fair Value, Inputs, Level 3 [Member] \| Caelum Convertible Notes [Member]
Liabilities
Liabilities		$ 9,914

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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