Restructuring (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Restructuring (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring income		$ 4,874		$ 4,874
Office premises and employee severance charge
Restructuring Cost and Reserve [Line Items]
Restructuring income	$ 0	$ 4,874	$ 0	$ 4,874

- 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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