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Special Charges By Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Special Charges [Line Items] |  |  |  |  |  |
Special charges | $ 3,634 | $ 1,750 | $ 5,061 | $ 10,445 | $ 0 | $ 16,339
Operating Segments |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  | 9,833 |  | 426
Operating Segments | Corporate Finance & Restructuring |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  |  |  | 84
Operating Segments | Forensic and Litigation Consulting |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  | 2,304 |  | 308
Operating Segments | Economic Consulting |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  |  |  | 12
Operating Segments | Technology |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  | 7,529 |  | 19
Operating Segments | Strategic Communications |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  |  |  | 3
Unallocated Corporate |  |  |  |  |  |
Special Charges [Line Items] |  |  |  |  |  |
Special charges |  |  |  | $ 612 |  | $ 15,913

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- Definition The charge against earnings in the period, comprised of costs associated with non-recurring activities related to our global branding strategy and other strategic branding decisions, a realignment of our workforce and consolidation of office locations. + References No definition available. + Details
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