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- Definition

Business combination recognized identifiable assets acquired and liabilities assumed prepayment penalty.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Basis of Presentation (Details) £ in Millions, shares in Millions, $ in Millions	Mar. 06, 2020 USD ($)	Mar. 06, 2020 GBP (£)	Jun. 12, 2019 USD ($)	Apr. 26, 2019 USD ($) shares
John Wood Group
Business Acquisition [Line Items]
Enterprise value on debt-free, cash-free basis (USD, GBP)	$ 317.9	£ 246
KeyW
Business Acquisition [Line Items]
Outstanding shares acquired (as a percent)			100.00%
Consideration transferred			$ 902.6
Consideration paid in cash			604.2
Debt assumed			$ 298.4
CH2M HILL Companies, Ltd. \| Worley
Business Acquisition [Line Items]
Consideration paid in cash				$ 2,800.0
Purchase price				$ 3,400.0
Consideration paid in shares (in shares) \| shares				58.2