Summary of Significant Accounting Policies - Basis of Presentation and Consolidation (Details)	1 Months Ended	3 Months Ended
Apr. 30, 2020	Mar. 27, 2020 segment Market
Subsequent Event [Line Items]
Number of operating segments \| segment		1
Number of vertical market focus areas \| Market		5
Subsequent Event [Member]
Subsequent Event [Line Items]
Description of the nature of an event or transaction	Through the date of this filing, about 10% of the Company’s billable resources have been idled by the COVID-19 pandemic. To offset this reduction in billable resources, during April 2020, the Company took a number of actions to reduce costs and mitigate the potential impact of the COVID-19 pandemic, including a full-time furlough of about 5% of its North American non-billable staff, and a reduced work schedule (20% furlough) for nearly all other non-billable staff, including senior management, that are not directly or indirectly related to business development.

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.

No definition available.

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