The number of positions eliminated during the period as a result of restructuring activities.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

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Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

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Restructuring and Other Related Charges - Narrative (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) employee	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Restructuring Plan
Restructuring and other related charges	$ 1,497	$ 706
Contract termination fees	4,232		$ 5,015
Other Accrued Liabilities, Current
Restructuring Plan
Restructuring liability, current	300
Lease Liabilities, Current
Restructuring Plan
Restructuring liability, current	700
Employee Costs
Restructuring Plan
Severance-related costs	$ 1,400	700
Number of employees eliminated \| employee	290
Restructuring liability, current	$ 2,700
Restructuring liability, noncurrent	500
Contract termination fees	3,062		3,130
Real Estate Rationalization
Restructuring Plan
Contract termination fees	1,170		1,885
Real Estate Rationalization \| Chicago Office
Restructuring Plan
Contract termination fees			1,400
Real Estate Rationalization \| Brussels Office
Restructuring Plan
Contract termination fees			$ 300
Settlement Costs \| Brussels Office
Restructuring Plan
Restructuring liability, noncurrent	300
Plan
Restructuring Plan
Restructuring and other related charges	$ 1,500	$ 700