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Commitments and Contingencies - Additional Information (Detail) € in Millions |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 27, 2023 USD ($) ConsecutiveMonth | Feb. 28, 2023 USD ($) | Jun. 30, 2022 USD ($) | Nov. 30, 2021 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2024 EUR (€) | Jul. 01, 2013 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating lease costs |  |  |  |  |  | $ 348,000 | $ 422,000 |  |  |
Financing liability |  |  |  |  |  | 104,100,000 |  | $ 104,100,000 |  |
Financing liability, long term |  |  |  |  |  | 94,207,000 |  | 94,319,000 |  |
Financing liability, short term |  |  |  |  |  | $ 9,872,000 |  | 9,809,000 |  |
Supply Agreement expiration period |  |  |  |  |  | Dec. 31, 2034 |  |  |  |
Supply Agreement renewal period |  |  |  |  |  | 2 years |  |  |  |
Milestone liabilities |  |  |  |  |  | $ 3,452,000 |  | 3,452,000 |  |
Returns reserve for acquired product | [1] |  |  |  |  | $ 1,633,000 |  | 601,000 |  |
Effective interest rate |  |  |  |  |  | 11.10% |  |  |  |
Cash paid for interest on financing liability |  |  |  |  |  | $ 2,400,000 | $ 2,400,000 |  |  |
Loss on purchase commitments | € |  |  |  |  |  |  |  |  | € 58.9 |
Insulin |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss on purchase commitments |  |  |  |  |  | 62,700,000 |  | 64,800,000 |  |
Tyvaso DPI |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Royalty commencement date |  | Oct. 01, 2023 |  |  |  |  |  |  |  |
Royalty termination date |  | Dec. 31, 2042 |  |  |  |  |  |  |  |
Equipment | V-Go |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Lease Cost |  |  |  | $ 14,370 |  |  |  |  |  |
Master Lease Agreement with Enterprise | Vehicle Leases |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating lease rent expenses |  |  |  |  |  | 100,000 |  |  |  |
Marlborough Lease | Buildings |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating lease rent expenses |  |  |  | $ 28,895 |  |  |  |  |  |
Percentage of annual increase in lease payment |  |  |  | 3.00% |  |  |  |  |  |
Casper L L C |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Sale price |  |  |  |  | $ 102,300,000 |  |  |  |  |
Lease initial term |  |  |  |  | 20 years |  |  |  |  |
Lease renewal options |  |  |  |  | renewal options of five years |  |  |  |  |
Lessee,option to extend [true false] |  |  |  |  | true |  |  |  |  |
Operating lease costs |  |  |  |  | $ 9,500,000 |  |  |  |  |
Lease, description |  |  |  |  | The total annual rent under the Lease starts at approximately $9.5 million per year, subject to a 50% rent abatement during the first year of the Lease, and will increase annually by (i) 2.5% in the second through fifth year of the Lease and (ii) 3% in the sixth and each subsequent year of the Lease, including any renewal term. |  |  |  |  |
Security deposit |  |  |  |  | $ 2,000,000.0 |  |  |  |  |
Lease repurchase description |  |  |  |  | the Company has four options to repurchase the Property, in 2026, 2031, 2036 and 2041, for the greater of (i) $102.3 million and (ii) the fair market value of the Property. |  |  |  |  |
Accrued Expenses And Other Current Liabilities |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Returns reserve for acquired product |  |  |  |  |  | 1,200,000 |  |  |  |
Minimum | Casper L L C |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Lease repurchase, amount |  |  |  |  | $ 102,300,000 |  |  |  |  |
Deerfield | Milestone Rights Liability |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent liability remain payable |  |  |  |  |  |  |  |  |  | $ 55,000,000
Remaining milestone rights liability |  |  |  |  |  | 3,900,000 |  | 3,900,000 |  |
Milestone rights liability, current |  |  |  |  |  | 800,000 |  | 800,000 |  |
Milestone liabilities |  |  |  |  |  | $ 3,100,000 |  | 3,100,000 |  |
Deerfield | Milestone Rights Liability | Maximum |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Contingent liability for milestone payments |  |  |  |  |  |  |  |  |  | $ 90,000,000
Russell Ranch Road II LLC | Office Lease |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Operating lease rent expenses |  |  | $ 79,543 |  |  |  |  |  |  |
Percentage of annual increase in lease payment |  |  | 3.00% |  |  |  |  |  |  |
Description of right to extension of lease term |  |  |  |  |  | The Company has no further right to extend the lease term beyond July 31, 2028. |  |  |  |
Russell Ranch Road II LLC | Maximum | Office Lease |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Reimbursement for tenant improvements |  |  | $ 900,000 |  |  |  |  |  |  |
Additional base rent concession |  |  | $ 700,000 |  |  |  |  |  |  |
Sagard |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Upfront proceeds |  | $ 150,000,000 |  |  |  |  |  |  |  |
Reimbursements |  | $ 400,000 |  |  |  |  |  |  |  |
Percentage of royalty on future net sales |  | 1.00% |  |  |  |  |  |  |  |
Sagard | Tyvaso DPI |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price |  | $ 200,000,000 |  |  |  |  |  |  |  |
Sagard | Net Sales Threshold A | Tyvaso DPI |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payment |  | 50,000,000 |  |  |  |  |  |  |  |
Net sales |  | 1,900,000,000 |  |  |  |  |  |  |  |
Sagard | Net Sales Threshold B | Tyvaso DPI |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Milestone payment |  | 45,000,000 |  |  |  |  |  |  |  |
Net sales |  | $ 2,300,000,000 |  |  |  |  |  |  |  |
Number of consecutive months | ConsecutiveMonth |  | 12 |  |  |  |  |  |  |  |
Sagard | Net Sales Thresholds A and B | Tyvaso DPI |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 3,500,000,000 |  |  |  |  |  |  |  |
Sagard | Remainder of Year |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Royalties |  | $ 0 |  |  |  |  |  |  |  |
Sagard | Royalty Liability |  |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Royalty rights |  | 1.00% |  |  |  |  |  |  |  |
Transaction costs |  | $ 4,400,000 |  |  |  |  |  |  |  |
Percentage of Future Royalty Revenues |  | 10.00% |  |  |  |  |  |  |  |
Effective interest rate |  |  |  |  |  | 1110.00% |  |  |  |
Non-cash interest expense |  |  |  |  |  | $ 4,200,000 |  |  |  |
Non-cash revenue recognized |  |  |  |  |  | 2,300,000 |  | $ 2,100,000 |  |
Amortization of transaction costs |  |  |  |  |  | $ 100,000 |  |  |  |
[1] | See Note 14 – Commitments and Contingencies.

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