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Segment Reporting - Revenues and Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization for Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |
Revenues | $ 723,620 | $ 686,277
Adjusted Segment EBITDA | 121,067 | 125,446
Corporate Finance |  |
Segment Reporting Information [Line Items] |  |
Revenues | 253,329 | 226,203
Adjusted Segment EBITDA | 53,539 | 37,439
FLC |  |
Segment Reporting Information [Line Items] |  |
Revenues | 153,896 | 150,821
Adjusted Segment EBITDA | 17,257 | 29,432
Economic Consulting |  |
Segment Reporting Information [Line Items] |  |
Revenues | 165,977 | 169,273
Adjusted Segment EBITDA | 21,195 | 26,579
Technology |  |
Segment Reporting Information [Line Items] |  |
Revenues | 80,484 | 79,459
Adjusted Segment EBITDA | 13,363 | 21,598
Strategic Communications |  |
Segment Reporting Information [Line Items] |  |
Revenues | 69,934 | 60,521
Adjusted Segment EBITDA | $ 15,713 | $ 10,398

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- Definition Segment's share of consolidated operating income before depreciation, amortization of intangible assets, remeasurement of acquisition-related contingent consideration, special charges and goodwill impairment charges. + References No definition available. + Details
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