Percent of common shares reserved for future issuance.

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- Definition

Common Stock, Convertible, Conversion Ratio

+ References

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Options, Surrendered And Cancelled In Period

+ References

No definition available.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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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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- Definition

Change in the weighted average exercise price of options outstanding.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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.

+ References

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- Definition

Number of non-vested options outstanding.

+ References

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- Definition

Weighted average grant-date fair value of options vested.

+ References

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Share-based compensation - Narrative (Details) $ / shares in Units, $ in Millions		9 Months Ended
	Dec. 11, 2025 USD ($) $ / shares shares	Sep. 30, 2026 USD ($) shares	Sep. 30, 2025 USD ($)
Share-based payment arrangements
Surrendered and cancelled (in shares) \| shares		3,305,683
Unrecognized stock-based compensation expense, stock options \| $		$ 7.0	$ 13.8
Stock options
Share-based payment arrangements
Common stock, conversion ratio	1
Weighted-average amortization period		1 year 7 months 13 days	2 years 14 days
Performance stock units
Share-based payment arrangements
Weighted-average amortization period		1 year 5 months 26 days	1 year 7 months 2 days
Unrecognized stock-based compensation expense \| $		$ 17.4	$ 9.3
Restricted stock units
Share-based payment arrangements
Weighted-average amortization period		1 year 10 months 13 days	2 years 1 month 9 days
Unrecognized stock-based compensation expense \| $		$ 59.0	$ 21.6
Option Exchange Program \| Stock options
Share-based payment arrangements
Outstanding stock options exercise price (in dollars per shares)	$ 15.00
Surrendered and cancelled (in shares) \| shares	3,300,000
Option Exchange Program \| Stock options \| Minimum
Share-based payment arrangements
Outstanding stock options exercise price (in dollars per shares)	$ 15.60
Option Exchange Program \| Stock options \| Maximum
Share-based payment arrangements
Outstanding stock options exercise price (in dollars per shares)	47.34
Option Exchange Program \| Performance-Based Stock Options
Share-based payment arrangements
Outstanding stock options exercise price (in dollars per shares)	$ 8.67
Performance-based stock options held (in shares) \| shares	1,800,000
Average grant date fair value (in dollars per share)	$ 10.81
Plan modification, incremental cost \| $	$ 19.9
SVS
Share-based payment arrangements
Common stock, conversion ratio		1
SVS \| 2018 Long Term Incentive Plan
Share-based payment arrangements
Percent of shares reserved for future issuance		1000.00%