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Description of Business and Significant Accounting Policies - Additional Information (Detail) € in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) Contract	Dec. 31, 2018 USD ($) Contract	Jun. 30, 2019 EUR (€)	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jul. 01, 2013 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Accumulated deficit	$ (2,967,270,000)	$ (2,940,000,000)
Cash and cash equivalents and restricted cash	13,284,000	$ 71,684,000		$ 26,705,000	$ 48,355,000
Short-term investments	24,909,000
Principal amount of outstanding borrowings	99,200,000
Loss on purchase commitments \| €			€ 82.3
(“ASC”) Topic 842 – Leases
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Increase in total assets and total liabilities	5,200,000
Short-term Investments
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Gain (loss) on investments	0
Insulin
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Loss on purchase commitments	$ 93,600,000
Loss on purchase commitments, number of new contracts recognized \| Contract	0	0
Maximum \| AFREZZA product sales
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Sales return right following product expiration in months	12 months
Minimum \| AFREZZA product sales
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Sales return right following product expiration in months	6 months
Deerfield \| Minimum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Available amount of credit facility under covenant restrictions for each quarter end after current fiscal		$ 25,000,000
Deerfield \| 2019 notes
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Senior notes, effective interest rate	9.75%		9.75%
Principal amount of outstanding borrowings						$ 160,000,000
Deerfield \| Tranche B notes
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Senior notes, effective interest rate	8.75%		8.75%