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- Definition

Business Combination, Consideration Transferred, Fair Value of Exchanged Acquiree, Share Based Awards, Unvested

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Goodwill, Measurement Period Adjustment, Other

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- Definition

Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department.

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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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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of long-term debt assumed in business combination and recognized at acquisition date, classified as noncurrent.

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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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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Number of businesses acquired in business combination.

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BUSINESS COMBINATIONS - Narrative (Details) $ in Thousands, shares in Millions		6 Months Ended	12 Months Ended
	Aug. 04, 2025 USD ($) shares	Jun. 30, 2026 USD ($) business	Dec. 31, 2025 USD ($) business
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill		$ 1,661,520	$ 1,649,595
Measurement period adjustments		23,564
Consulting & Engineering
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill		529,506	516,873
Measurement period adjustments		7,786
Inspection & Mitigation
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill		879,149	895,533
Measurement period adjustments		102
Geospatial
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill		252,865	$ 237,189
Measurement period adjustments		$ 15,676
2026 Business Acquisitions
Business Combination, Separately Recognized Transaction [Line Items]
Number of businesses acquired \| business		4
Total consideration		$ 13,900
Goodwill		6,500
NV5 Global, Inc.
Business Combination, Separately Recognized Transaction [Line Items]
Total consideration	$ 1,668,959
Goodwill	785,172
Cash paid to acquire business	$ 870,911
Number of shares issued (in shares) \| shares	73.2
Equity consideration	$ 768,304
Replacement of unvested	76,500
Replacement of share-based awards	29,744
Debt issuance costs	21,900
Goodwill expected to be tax deductible	76,100
Measurement period adjustments		19,600
Other measurement period adjustments, not individually material		2,100
Acquisition-related cost, expense	$ 24,700
NV5 Global, Inc. \| Customer relationships
Business Combination, Separately Recognized Transaction [Line Items]
Weighted average remaining life (in years)	15 years
NV5 Global, Inc. \| Customer backlog
Business Combination, Separately Recognized Transaction [Line Items]
Weighted average remaining life (in years)	2 years
NV5 Global, Inc. \| Trade name
Business Combination, Separately Recognized Transaction [Line Items]
Weighted average remaining life (in years)	10 years
NV5 Global, Inc. \| Developed technology
Business Combination, Separately Recognized Transaction [Line Items]
Weighted average remaining life (in years)	3 years
NV5 Global, Inc. \| Consulting & Engineering
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill	$ 522,800
Measurement period adjustments		7,800
NV5 Global, Inc. \| Inspection & Mitigation
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill	15,400
NV5 Global, Inc. \| Geospatial
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill	247,000
Measurement period adjustments		$ 13,900
NV5 Global, Inc. \| Revolving credit facility
Business Combination, Separately Recognized Transaction [Line Items]
Debt issuance costs	1,300
Increase in existing senior secured revolving credit facility	125,000
NV5 Global, Inc. \| Revolving credit facility \| Line of Credit
Business Combination, Separately Recognized Transaction [Line Items]
Long-term debt	$ 875,000
2025 Business Acquisitions
Business Combination, Separately Recognized Transaction [Line Items]
Number of businesses acquired \| business			7
Goodwill			$ 17,600
Cash paid to acquire business			45,800
2025 Business Acquisitions \| Consulting & Engineering
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill			1,900
2025 Business Acquisitions \| Inspection & Mitigation
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill			9,800
2025 Business Acquisitions \| Geospatial
Business Combination, Separately Recognized Transaction [Line Items]
Goodwill			$ 5,900