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Goodwill and Other Intangible Assets, net - Reconciliation of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Beginning balance | $ 26,106 |  |
Impairment |  |  | $ (9,738)
Ending balance | 32,510 | $ 26,106 |
IT Staffing Services [Member] |  |  |
Beginning balance | 8,427 | 8,427 | 8,427
Goodwill recorded |  | 0 |
Impairment |  | 0 |
Ending balance | 8,427 | 8,427 | 8,427
Data and Analytics Services [Member] |  |  |
Beginning balance | 17,679 | 17,679 | 27,417
Goodwill recorded | 6,404 |  |
Impairment |  |  | (9,738)
Ending balance | $ 24,083 | $ 17,679 | $ 17,679

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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
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