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- Definition

Debt Instrument, Equity Commitment

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Debt Instrument, Interest Rate, Stated Deferred Rate

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Debt Instrument, Interest Rate, Stated Quarterly Rate

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Option Indexed to Issuer's Equity, Nominal Value

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- Definition

Payment for Debt Extinguishment Cost

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- Definition

Payment for Debt Prepayment Cost

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- Definition

Repayments of Debt, Accrued Interest

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Repayments of Debt, Principal

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Number of warrants or rights outstanding.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Financing Arrangements - Narrative (Details) - USD ($)			1 Months Ended		12 Months Ended
Financing Arrangements - Narrative (Details) - USD ($)	Dec. 31, 2019	Dec. 30, 2019	Dec. 31, 2018	Oct. 31, 2017	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Debt Instrument [Line Items]
Equity option				$ 20,000,000.0
Proceeds from related party debt financing					$ 245,000,000	$ 113,700,000	$ 0
Loss on extinguishment of debt					$ 0	4,851,000	$ 0
Common Shares
Debt Instrument [Line Items]
Warrants exercisable as a percentage of principal amount of loan				3.00%
Warrants outstanding (in USD per share)					73,710
Line of Credit \| NovaQuest
Debt Instrument [Line Items]
Maximum borrowing commitment				$ 60,000,000.0
Debt issued			$ 54,000,000.0	6,000,000.0
Equity commitment related to note issuance				$ 20,000,000.0
Interest rate				15.00%
Quarterly interest rate				5.00%
Deferred interest rate				10.00%
Principal repayment of debt	$ 60,000,000.0
Accrued interest repayment of debt	7,600,000
Prepayment penalty	2,400,000
Term Loan \| Hercules
Debt Instrument [Line Items]
Maximum borrowing commitment				$ 40,000,000.0
Interest rate				8.25%
Principal repayment of debt	40,000,000.0
Accrued interest repayment of debt	300,000
Prepayment penalty	400,000
Principal amount funded				$ 25,000,000.0				$ 15,000,000.0
End-of-term charge	$ 2,600,000
Term Loan \| Hercules \| Prime Rate
Debt Instrument [Line Items]
Variable interest rate				4.00%
Term Loan \| Letter Agreement with Sumitomo Dainippon Pharma, Co., Ltd.
Debt Instrument [Line Items]
Proceeds from related party debt financing		$ 113,700,000
Loss on extinguishment of debt						$ 4,900,000
Tranche 1 \| Common Shares
Debt Instrument [Line Items]
Number of securities exercisable by warrant (in shares)				49,800
Exercise price of warrants (in USD per share)				$ 15.06
Tranche 2 \| Common Shares
Debt Instrument [Line Items]
Number of securities exercisable by warrant (in shares)				23,910
Exercise price of warrants (in USD per share)				$ 18.82
NovaQuest \| Private Placement
Debt Instrument [Line Items]
Shares purchased by NovaQuest (in shares)				138,361
Shares purchased by NovaQuest				$ 2,000,000.0
NovaQuest \| Private Placement, One
Debt Instrument [Line Items]
Shares purchased by NovaQuest (in shares)			1,082,977
Shares purchased by NovaQuest			$ 18,000,000.0
NovaQuest \| Private Placement, Two
Debt Instrument [Line Items]
Shares purchased by NovaQuest (in shares)			1,203,307
Shares purchased by NovaQuest			$ 20,000,000.0