XML 42 R31.htm IDEA: XBRL DOCUMENT v3.25.2

Stock award plan - (Tables)

6 Months Ended

Jun. 30, 2025

Stock award plan

Summary of stock option activity

​

​	​	​	​	​	​	​	​	​	​	​	​
​		​		​	​		Weighted-			​	​
​	​	​	​	Weighted-		​	average	​	​	Aggregate
​	​	​	​	average		​	remaining	​	​	intrinsic
​	​	Number of	​	exercise		​	contractual	​	​	value(in
​	​	options	​	price		​	term	​	​	thousands)
​	​	​	​	​	​	​	​		​	​	​
Outstanding at December 31, 2024		8,482,489	​	$	42.29				​	​
Granted		822,470	​	$	46.84				​	​
Exercised		(467,285)	​	$	36.68				​	​
Forfeited/Cancelled		(531,684)	​	$	54.13				​	​
Outstanding at June 30, 2025		8,305,990	​	$	42.30		5.80	years	​	$	78,400
Expected to vest at June 30, 2025		1,658,277	​	$	38.81		8.67	years	​	$	16,967
Exercisable at June 30, 2025		6,462,776	​	$	43.28		4.97	years	​	$	59,655

​

Schedule of assumptions used to estimate fair values of grants made on the date of grant

​

​	​	​	​
​		Six months ended
​		June 30, 2025
Risk-free interest rate		3.93% - 4.44%
Expected volatility		55% - 56%
Expected term		5.5 years

Summary of information on the Company's restricted stock

​

​	​	​	​	​	​
​	​	Restricted Stock Units
​	​	​	​	Weighted
​	​	​	​	Average
​	​	​	​	Grant
​	​	Number of	​	Date
​		Shares		Fair Value
Unvested at December 31, 2024	​	3,527,575	​	$	33.39
Granted		1,576,245	​	​	46.87
Vested		(1,134,189)	​	​	37.01
Forfeited		(150,987)	​	​	34.46
Unvested at June 30, 2025		3,818,644	​	$	37.84

Schedule of share-based compensation expense recorded in the statement of operations

​

​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	Three Months Ended June 30,					​	Six Months Ended June 30,
​		2025			2024			2025			2024
Research and development	​	$	9,030	​	$	9,428	​	$	17,693	​	$	18,395
Selling, general and administrative	​		9,513	​		9,815	​		18,910	​		19,226
Total	​	$	18,543	​	$	19,243	​	$	36,603	​	$	37,621

​

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Subparagraph (c)
-Paragraph 2
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration