Summary of Significant Accounting Policies - Additional Information (Detail) € in Millions		1 Months Ended	12 Months Ended
	Jan. 01, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 EUR (€)	Sep. 30, 2023 EUR (€)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jul. 01, 2013 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Accretion or amortization			$ 1,600,000	$ 700,000
Allowance for credit losses			$ 0	0
Purchase of available-for-sale securities				5,000,000	$ 3,000,000
Percentage of future royalties			1.00%
Loss on purchase commitments | €						€ 59.5	€ 61.1
MidCap Credit Facility
Summary Of Significant Accounting Policies [Line Items]
Principal amount			$ 33,300,000	40,000,000.0
Milestone Rights Liability | Deerfield
Summary Of Significant Accounting Policies [Line Items]
Contingent liability remain payable			900,000	1,100,000						$ 55,000,000
Contingent liability for milestone payments								$ 5,000,000	$ 5,000,000
Convertible Promissory Note | Thirona Bio, Inc.
Summary Of Significant Accounting Policies [Line Items]
Purchase of available-for-sale securities	$ 5,000,000.0	$ 3,000,000.0
Interest rate		6.00%
Investment securities			6,900,000	7,100,000
Available-for-Sale Investment, credit losses			200,000	900,000
Principal amount			8,000,000
Insulin
Summary Of Significant Accounting Policies [Line Items]
Loss on purchase commitments			$ 64,800,000	$ 72,300,000
Tyvaso DPI
Summary Of Significant Accounting Policies [Line Items]
Percentage of royalty on net sales			10.00%
Percentage of royalty on net revenue			10.00%
Percentage of future royalties			9.00%
Minimum | AFREZZA product sales
Summary Of Significant Accounting Policies [Line Items]
Sales return right following product expiration in months			6 months
Maximum | Milestone Rights Liability | Deerfield
Summary Of Significant Accounting Policies [Line Items]
Contingent liability for milestone payments										$ 90,000,000
Maximum | AFREZZA product sales
Summary Of Significant Accounting Policies [Line Items]
Sales return right following product expiration in months			12 months