Commitments and Contingencies - Additional Information (Detail) € in Millions		1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
		Dec. 31, 2023 USD ($) ConsecutiveMonth	Feb. 28, 2023 USD ($)	Jun. 30, 2022 USD ($)	Nov. 30, 2021 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2024 EUR (€)	Jul. 01, 2013 USD ($)
Commitments And Contingencies [Line Items]
Operating lease costs						$ 350,000	$ 410,000	$ 698,000	$ 831,000
Financing Liability		$ 104,100,000				104,000,000		104,000,000		$ 104,100,000
Financing liability - long term		94,319,000				94,094,000		94,094,000		94,319,000
Financing liability - current		9,809,000				9,935,000		$ 9,935,000		9,809,000
Supply Agreement expiration period								Dec. 31, 2034
Supply Agreement renewal period								2 years
Milestone liabilities		3,452,000				2,813,000		$ 2,813,000		3,452,000
Milestone liabilities remeasurement amount						4,200,000
Returns reserve for acquired product	[1]	601,000				1,290,000		1,290,000		601,000
Losses on estimated returns of acquired product								1,400,000
Loss on purchase commitments | €											€ 56.6
Insulin
Commitments And Contingencies [Line Items]
Loss on purchase commitments		$ 64,800,000				60,200,000		60,200,000		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						1,300,000		1,300,000
General and Administrative Expense
Commitments And Contingencies [Line Items]
Losses on estimated returns of acquired product						300,000		$ 1,400,000
Maximum
Commitments And Contingencies [Line Items]
Effective interest rate								11.50%
Minimum
Commitments And Contingencies [Line Items]
Effective interest rate								11.10%
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		$ 3,900,000		3,900,000
Milestone rights liability, current		800,000				1,400,000		1,400,000		800,000
Milestone liabilities		3,100,000				$ 2,500,000		$ 2,500,000		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%
Unamortized transaction costs								$ 4,300,000		$ 4,400,000
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%

[1] See Note 14 – Commitments and Contingencies under Loss Contingencies — Returns Reserve for Acquired Product.