Number of employees reduction in workforce.

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Amount of cost capitalized for award reversed under share-based payment arrangement.

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The amount of maximum expense under share based compensation arrangement.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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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No definition available.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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-Name Accounting Standards Codification
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Share-Based Compensation - Performance Contingent Awards (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) employee shares	Dec. 31, 2021 USD ($) employee	Dec. 31, 2020 USD ($)	Dec. 31, 2016 shares
Share-Based Compensation
Stock-based compensation expense	$ 39,734	$ 62,061	$ 62,976
Incremental Share-Based Compensation expense	1,700
Cumulative compensation cost	800	2,800
Restructuring and related expenses
Share-Based Compensation
Stock-based compensation expense	6,998	8,362
Incremental Share-Based Compensation expense	$ 2,500	$ 5,600
Number of employees reduction in workforce \| employee	40	160
Selling, general and administrative
Share-Based Compensation
Stock-based compensation expense	$ 19,848	$ 28,065	31,682
Research and development
Share-Based Compensation
Stock-based compensation expense	12,888	25,634	31,294
Performance-Contingent Awards - RSAs
Share-Based Compensation
Shares approved for grant (in shares) \| shares				1,575,000
Vesting period				5 years
Total maximum expense	$ 400
Performance-Contingent Awards - RSUs
Share-Based Compensation
RSUs outstanding (in shares) \| shares	43,000
Performance-Contingent Awards - RSUs \| Senior management
Share-Based Compensation
Shares approved for grant (in shares) \| shares				135,000
Performance-Contingent Awards - RSUs.
Share-Based Compensation
Stock-based compensation expense	$ 200	400	1,000
First tranche
Share-Based Compensation
Stock-based compensation expense		$ 400	$ 3,000