Basis of Presentation and Nature of Operations - Additional Information (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2022 Office Segment	Jun. 30, 2021 Segment	Jun. 30, 2022 Office Segment	Jun. 30, 2021 Segment
Basis of Presentation and Nature of Operations [Line Items]
Number of operating segments \| Segment	1	1	1	1
Number of reporting segments \| Segment	1	1	1	1
Domestic \| Minimum
Basis of Presentation and Nature of Operations [Line Items]
Number of offices \| Office	50		50
International \| Minimum
Basis of Presentation and Nature of Operations [Line Items]
Number of offices \| Office	20		20

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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration