Segment Information and Geographical Data (Narrative) (Details) $ in Thousands |
9 Months Ended | |
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Sep. 25, 2026
USD ($)
Segment
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Dec. 26, 2025
USD ($)
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| Segment Reporting [Line Items] | ||
| Number of operating segments | Segment | 3 | |
| Number of reportable segments | Segment | 3 | |
| Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | Chief Executive Officer [Member] | |
| Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | The CODM primarily uses revenue before reimbursement generated by the segment, cost of sales, gross margin, selling, general and administrative costs and contribution margin as a measure of profitability for each of its segments as these measures provide a comprehensive view of the segments’ financial performance. The measurement criteria for segment contribution is substantially the same for each reportable segment, excluding any unusual or infrequent items, if any. | |
| Goodwill | $ 90,049 | $ 90,659 |
| Goodwill included in foreign assets | 14,800 | 15,100 |
| Global S&BT [Member] | ||
| Segment Reporting [Line Items] | ||
| Goodwill | 63,357 | 63,967 |
| United Kingdom [Member] | ||
| Segment Reporting [Line Items] | ||
| Goodwill | 13,800 | $ 14,100 |
| Leewayhertz Technologies Private Limited and Spend Matters LLC [Member] | United States [Member] | ||
| Segment Reporting [Line Items] | ||
| Intangible assets | $ 2,300 |
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- Definition Goodwill included in foreign asset. No definition available.
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- Definition Amount of identifiable finite-lived intangible asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Indicates title and position of individual or name of group identified as chief operating decision maker (CODM) for segment reporting. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Description of how chief operating decision maker (CODM) uses reported segment profit (loss) measure to assess performance and allocate resource. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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