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Turner & Townsend Acquisition - Summary of Preliminary Estimate of Trademark Acquired (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Nov. 01, 2021 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Gross Carrying Amount | $ 392,377 |  | $ 124,222
Turner & Townsend | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Finite Lived Intangible Assets, Amount Assigned at Acquisition Date |  | $ 753,935 |
Finite Lived Intangible Assets, Accumulated Amortization and Foreign Currency Translation | 21,577 |  |
Finite-Lived Intangible Assets, Net Carrying Value | $ 732,358 |  |
Turner & Townsend | Customer relationships | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Amortization Period | 5 years |  |
Turner & Townsend | Customer relationships | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Amortization Period | 11 years |  |
Turner & Townsend | Backlog |  |  |
Business Acquisition [Line Items] |  |  |
Finite Lived Intangible Assets, Amount Assigned at Acquisition Date |  | 75,407 |
Finite Lived Intangible Assets, Accumulated Amortization and Foreign Currency Translation | $ 5,255 |  |
Finite-Lived Intangible Assets, Net Carrying Value | $ 70,152 |  |
Turner & Townsend | Backlog | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Amortization Period | 2 years |  |
Turner & Townsend | Backlog | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Amortization Period | 4 years |  |
Turner & Townsend | Trademark |  |  |
Business Acquisition [Line Items] |  |  |
Indefinite Lived Intangible Assets, Amount Assigned at Acquisition Date |  | $ 275,626 |
Indefinite Lived Intangible Assets, Accumulated Amortization and Foreign Currency Translation | $ 3,202 |  |
Gross Carrying Amount | $ 272,424 |  |

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