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Landfill Accounting - Reserve Assumptions and Accretion Expense (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($) $ / T	Jun. 30, 2022 USD ($) $ / T	Dec. 31, 2022
Landfill Accounting [Line Items]
Accretion expense associated with landfill obligations | $	$ 8,992	$ 7,992
Average rate per ton consumed related to final capping, closure and post-closure landfill accretion expense | $ / T	0.37	0.34
Landfill
Landfill Accounting [Line Items]
Inflation rate for purposes of computing layers for final capping, closure and post-closure obligations	2.75%
Landfill | Minimum
Landfill Accounting [Line Items]
Inflation rate for purposes of computing layers for final capping, closure and post-closure obligations			2.25%
Landfill | Maximum
Landfill Accounting [Line Items]
Inflation rate for purposes of computing layers for final capping, closure and post-closure obligations			2.75%
Landfill | Measurement Input, Discount Rate
Landfill Accounting [Line Items]
Discount rate for purposes of computing layers for final capping, closure and post-closure obligations	5.50%
Landfill | Measurement Input, Discount Rate | Minimum
Landfill Accounting [Line Items]
Discount rate for purposes of computing layers for final capping, closure and post-closure obligations			3.25%
Landfill | Measurement Input, Discount Rate | Maximum
Landfill Accounting [Line Items]
Discount rate for purposes of computing layers for final capping, closure and post-closure obligations			5.50%

X

- Definition

Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480102/450-20-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481931/410-30-50-7

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- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481879/410-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

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- Definition

Average rate per ton consumed related to final capping, closure and post-closure landfills accretion expense.

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- Definition

The inflation rate applied to the total final capping, closure and post-closure obligation in current dollars based upon the expected date of the expenditure. This inflated total is then discounted to its present value using a credit-adjusted risk free rate.

+ References

No definition available.

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