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Goodwill and Other Intangible Assets - Additional Information (Detail) | 3 Months Ended
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Mar. 31, 2021 USD ($)
Goodwill [Line Items] |
Accumulated goodwill impairment losses | $ 0
Goodwill impairment charges | 0
Consulting [Member] |
Goodwill [Line Items] |
Goodwill allocated to reporting unit | $ 8,200,000

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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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