Fair value measurement - Additional Information (Detail)	Sep. 30, 2026
Measurement input, discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Percentage of increase decrease in contingent consideration liabilities	1.00%
Minimum \| Measurement input, discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business combination, contingent consideration, liability, measurement input	0.075
Maximum \| Measurement input, discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business combination, contingent consideration, liability, measurement input	0.11
Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business combination, contingent consideration, liability, measurement input	0.083

Value of input used to measure liability in contingent consideration arrangement in business combination.

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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Name:	us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant