XML 57 R46.htm IDEA: XBRL DOCUMENT v3.25.3

Stock-based compensation (Tables)

9 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

A summary of stock option activity during the nine months ended September 30, 2025 is set out below:

			Nine months ended September 30, 2025
			Shares  arising out of options						Weighted  average exercise price						Weighted average remaining contractual life (years)						Aggregate intrinsic value
Outstanding as of January 1, 2025			5,347,556						$	35.31					4.4						—
Granted			—						—						—						—
Forfeited			(53,600)						44.90						—						—
Expired			—						—						—						—
Exercised			(185,920)						36.32						—						1,849
Outstanding as of September 30, 2025			5,108,036						35.17						3.7						41,982
Vested as of September 30, 2025 and expected to vest thereafter (Note a)			5,076,129						35.09						3.7						41,976
Vested and exercisable as of September 30, 2025			4,280,186						33.12						3.3						41,517
Weighted average grant date fair value of grants during the period			—

(a)Options expected to vest reflect an estimated forfeiture rate.

Schedule of Restricted Share Units Activity

A summary of RSU activity during the nine months ended September 30, 2025 is set out below:

 

			Nine months ended September 30, 2025
			Number of Restricted Share Units						Weighted Average Grant Date Fair Value
Outstanding as of January 1, 2025			2,134,269						$	36.71
Granted			1,136,637						48.02
Vested (Note a)			(810,027)						37.27
Forfeited			(196,237)						39.32
Outstanding as of September 30, 2025			2,264,642						41.96
Expected to vest (Note b)			2,069,059

    

(a)810,027 RSUs vested during the nine months ended September 30, 2025, in respect of which 502,558 shares (net of minimum statutory tax withholding) were issued.

(b)The number of RSUs expected to vest reflects the application of an estimated forfeiture rate.

Schedule of Significant Assumptions Used in Determining Fair Value of Performance Units

The fair value of each PU granted to employees in the nine months ended September 30, 2024 and September 30, 2025 was estimated on the date of grant using the following valuation assumptions:

						Nine months ended September 30, 2024												Nine months ended September 30, 2025
Dividend yield						1.62		%	—			1.81		%				1.37		%
Expected life (years)						2.38			—			2.80						2.81
Risk-free rate for expected life						3.83		%	—			4.37		%				3.89		%
Volatility for expected life						24.24		%	—			26.33		%				25.78		%

Schedule of Performance Units Activity

A summary of PU activity during the nine months ended September 30, 2025 is set out below:

			Nine months ended September 30, 2025
			Number of Performance Units						Weighted Average Grant Date Fair Value						Maximum Shares Eligible to Receive
Outstanding as of January 1, 2025			3,257,804						$	39.77					6,204,877
Granted			874,139						53.92						2,097,934
Vested (Note a)			(1,154,998)						44.50						(1,154,998)
Forfeited			(290,064)						39.45						(696,154)
Outstanding as of September 30, 2025			2,686,881						42.38						6,451,659
Expected to vest (Note b)			2,755,910

(a)1,154,998 PUs vested during the nine months ended September 30, 2025, in respect of which 738,490 shares (net of minimum statutory tax withholding) were issued during the nine months ended September 30, 2025.

(b)The number of PUs expected to vest is based on the probable achievement of the performance targets after considering an estimated forfeiture rate.

X

- Definition

Disclosure of components of Performance stock awards granted to employees, comprised of changes in the quantity of the shares granted, vested and allotted, forfeited and outstanding during the reporting period along with weighted average grant date fair value.

+ References

No definition available.

+ Details

Name:	g_SummaryOfPerformanceUnitsActivityTableTextBlock
Namespace Prefix:	g_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

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 units.

+ 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)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
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 employee stock purchase plans, including, but not limited to: (a) expected term, (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://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 50
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/718-50/tableOfContent

Reference 2: 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_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration