Fortress Biotech, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 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

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.19.1

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019	Nov. 14, 2018	Mar. 31, 2015
Accounting Policies [Line Items]
Percentage of tax benefit likely of being realized	50.00%
Restricted Cash and Cash Equivalents	$ 16,100	$ 16,000
Allowance for Doubtful Accounts Receivable	$ 3,100	1,300
Debt Instrument, Interest Rate, Stated Percentage	17.00%
Pledged Assets Separately Reported, Loans Pledged as Collateral, at Fair Value	$ 1,200	1,100
Time Deposits, at Carrying Value	$ 27,600	$ 50,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%
Revenue from Contract with Customer, Including Assessed Tax	$ 23,376	$ 15,520
Notes Payable	79,503	62,499			$ 10,000
Maximum [Member]
Accounting Policies [Line Items]
Operating Lease, Liability			$ 24,900
Operating Lease, Right-of-Use Asset			22,000
Minimum [Member]
Accounting Policies [Line Items]
Operating Lease, Liability			27,500
Operating Lease, Right-of-Use Asset			$ 24,600
Held-to-maturity Securities [Member]
Accounting Policies [Line Items]
Time Deposits, at Carrying Value		36,000		$ 17,600
Cash and Cash Equivalents [Member]
Accounting Policies [Line Items]
Time Deposits, at Carrying Value		14,000		$ 10,000
Return Reserve [Member]
Accounting Policies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,400	1,200
Hercules Note Payble [Member]
Accounting Policies [Line Items]
Restricted Cash and Cash Equivalents	14,900	$ 14,900
Helocyte Inc [Member]
Accounting Policies [Line Items]
Notes Payable	$ 4,400

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