Debt Instrument, Business Day Notice Period for Prepayment

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- Definition

Debt Instrument, Covenant, Repayment Period Upon Change in Control

+ References

No definition available.

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- Definition

Debt Instrument, Default Interest Rate

+ References

No definition available.

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- Definition

Related Party, Ownership Interest Held By Related Party

+ References

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- Definition

Related Party, Ownership Interest Held By Related Party, Shares

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- Definition

Related Party Transaction, Agreement Extension Term

+ References

No definition available.

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- Definition

Related Party Transaction, Agreement Term

+ References

No definition available.

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- Definition

Related Party Transaction, Number of Independent Directors Required for Audit Commitee

+ References

No definition available.

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- Definition

Related Party Transaction, Ownership Threshold for Appointment of Directors

+ References

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- Definition

Related Party Transaction, Ownership Threshold for Right of Ownership Percentage Maintenance

+ References

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- Definition

Related Party Transaction, Ownership Threshold for Voting Rights

+ References

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- Definition

Related Party Transaction, Termination Notice Period

+ References

No definition available.

+ Details

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- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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- Definition

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.

+ References

No definition available.

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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Related Party Transactions (Narrative) (Details)					3 Months Ended		6 Months Ended
Related Party Transactions (Narrative) (Details)	Aug. 01, 2020	Dec. 30, 2019 USD ($)	Dec. 27, 2019 USD ($) director day shares	Jun. 04, 2019 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($)	Aug. 05, 2020 USD ($)
Related Party Transaction [Line Items]
Proceeds from related party debt financing							$ 140,000,000	$ 0
Interest expense (related party)					$ 2,115,000	$ 0	4,299,000	0
Sumitomo Dainippon Pharma Co., Ltd. \| Market Access Services Agreement
Related Party Transaction [Line Items]
Termination notice period	9 months
Expenses incurred under agreements					$ 1,100,000		$ 1,100,000
Agreement term	3 years
Agreement extension term	1 year
Sumitomo Dainippon Pharma Co., Ltd. \| Majority Shareholder
Related Party Transaction [Line Items]
Number of shares owned (in shares) \| shares			45,008,604		48,641,181		48,641,181
Ownership percentage			50.20%		53.70%		53.70%
Ownership threshold for appointment of directors			50.00%
Number of independent directors required for audit commitee \| director			3
Ownership threshold for voting rights			60.00%
Ownership threshold for right of ownership percentage maintenance			50.00%
Sumitomo Dainippon Pharma Co., Ltd. \| Majority Shareholder \| Sumitovant Consulting Agreement
Related Party Transaction [Line Items]
Expenses incurred under agreements					$ 200,000		$ 300,000
Roivant Sciences, Ltd. \| Majority Shareholder \| Service Agreement
Related Party Transaction [Line Items]
Expenses incurred under agreements						200,000		400,000
Roivant Sciences, Ltd. \| Majority Shareholder \| Share-based Compensation, Expense Allocated to Company
Related Party Transaction [Line Items]
Expenses incurred under agreements					0	100,000	0	100,000
Public Offering
Related Party Transaction [Line Items]
Number of shares issued (in shares) \| shares				17,424,243
Price of shares (in USD per share) \| $ / shares				$ 8.25
Net proceeds from sale of shares				$ 134,500,000
Public Offering \| Roivant Sciences, Ltd. \| Majority Shareholder
Related Party Transaction [Line Items]
Number of shares issued (in shares) \| shares				2,424,242
Price of shares (in USD per share) \| $ / shares				$ 8.25
Net proceeds from sale of shares				$ 20,000,000.0
Term Loan \| Letter Agreement with Sumitomo Dainippon Pharma, Co., Ltd. \| Sumitomo Dainippon Pharma Co., Ltd. \| Majority Shareholder
Related Party Transaction [Line Items]
Maximum borrowing commitment			$ 400,000,000.0
Proceeds from related party debt financing		$ 113,700,000
Facility term			5 years
Notice period for prepayment \| day			10
Default interest rate			5.00%
Repayment period upon change in control			30 days
Outstanding balance					253,700,000		253,700,000
Available borrowing capacity					146,300,000		146,300,000
Interest expense (related party)					$ 2,100,000	$ 0	$ 4,300,000	$ 0
Term Loan \| New Letter Agreement with Sumitomo Dainippon Pharma, Co., Ltd. \| Sumitomo Dainippon Pharma Co., Ltd. \| Majority Shareholder
Related Party Transaction [Line Items]
Maximum borrowing commitment									$ 200,000,000.0
LIBOR \| Term Loan \| Letter Agreement with Sumitomo Dainippon Pharma, Co., Ltd. \| Sumitomo Dainippon Pharma Co., Ltd. \| Majority Shareholder
Related Party Transaction [Line Items]
Variable interest rate			3.00%