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Acquisitions - Narrative (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) entity	Sep. 30, 2023 USD ($) entity	Sep. 30, 2024 USD ($) entity
Business Acquisition [Line Items]
Acquisition-related costs	$ 25,169	$ 7,014
Goodwill expected to be deductible for tax purposes	552,762	317,190	$ 552,762
Trade receivables acquired in business combination gross contractual amount	96,391	15,538	96,391
Trade receivables acquired in business combination expected to be uncollectible amount	5,499	126	$ 5,499
Number of individually immaterial acquisitions | entity			5
Payment of contingent consideration recorded at acquisition date	$ 26,625	$ 4,255
Solid Waste
Business Acquisition [Line Items]
Number of immaterial businesses acquired in period | entity	17	9
Exploration and Production Waste Treatment Recovery and Disposal
Business Acquisition [Line Items]
Number of immaterial businesses acquired in period | entity	4	1

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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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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-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

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- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

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For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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-Section 50
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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-SubTopic 10
-Section 25
-Paragraph 23
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The number of businesses acquired by the entity during the period.

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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 45
-Paragraph 15
-Subparagraph (f)
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-Topic 230
-Publisher FASB
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This element represents the number of acquisitions for which the initial accounting is incomplete.

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