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Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2018	Jan. 31, 2014	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2018	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible asset amortization			$ 378	$ 379	$ 757	$ 758
HETLIOZ®
Finite-Lived Intangible Assets [Line Items]
Acquisition of intangible assets		$ 8,000					$ 25,000
Cumulative worldwide sales milestone	$ 250,000
Gross Carrying Amount			33,000		33,000			$ 33,000
Accumulated Amortization			15,192		15,192			14,435
Fanapt®
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount			27,900		27,900			27,900
Accumulated Amortization			$ 27,900		$ 27,900			$ 27,900

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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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.

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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Net cumulative worldwide sales to achieve milestone and trigger payment of milestone obligation.

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