CLOSURE AND POST-CLOSURE LIABILITIES - Changes in Post-Closure Liabilities (Details) $ in Thousands	6 Months Ended
Jun. 30, 2023 USD ($)
Changes to post-closure liabilities
Beginning balance	$ 118,801
Liabilities assumed in acquisitions	584
Measurement period adjustments from prior period acquisitions	3,015
New asset retirement obligations	1,348
Accretion	4,737
Changes in estimates recorded to consolidated statement of operations	135
Changes in estimates recorded to consolidated balance sheet	1,271
Expenditures	(9,501)
Currency translation and other	318
Ending balance	120,708
Landfill Retirement Liability
Changes to post-closure liabilities
Beginning balance	62,251
Liabilities assumed in acquisitions	0
Measurement period adjustments from prior period acquisitions	0
New asset retirement obligations	1,348
Accretion	2,555
Changes in estimates recorded to consolidated statement of operations	0
Changes in estimates recorded to consolidated balance sheet	(260)
Expenditures	(5,408)
Currency translation and other	169
Ending balance	60,655
Non-Landfill Retirement Liability
Changes to post-closure liabilities
Beginning balance	56,550
Liabilities assumed in acquisitions	584
Measurement period adjustments from prior period acquisitions	3,015
New asset retirement obligations	0
Accretion	2,182
Changes in estimates recorded to consolidated statement of operations	135
Changes in estimates recorded to consolidated balance sheet	1,531
Expenditures	(4,093)
Currency translation and other	149
Ending balance	$ 60,053

Asset Retirement Obligation Changes Recorded in Balance Sheet

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- Definition

The amount of change in the asset retirement obligation, during the current period, for changes in estimates recorded in the statement of income.

+ References

No definition available.

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- Definition

Asset Retirement Obligation, Liabilities Assumed in Acquisition

+ References

No definition available.

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- Definition

Asset Retirement Obligation, Measurement Period Adjustments From Prior Period Acquisitions

+ References

No definition available.

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- Definition

Asset Retirement Obligation, Payments

+ References

No definition available.

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- Definition

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 25
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481999/410-20-25-4

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

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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

Amount of foreign currency translation gain (loss) which decreases (increases) asset retirement obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

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- Definition

Amount of asset retirement obligations incurred during the period.

+ References

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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