CLOSURE AND POST-CLOSURE LIABILITIES (Details) $ in Thousands	9 Months Ended
Sep. 30, 2017 USD ($)
Changes to post-closure liabilities
Beginning balance	$ 58,331
Liabilities assumed in acquisitions	27
Measurement period adjustments from prior period acquisitions	596
New asset retirement obligations	1,376
Adjustment related to disposition of business	(1,170)
Accretion	3,540
Changes in estimates recorded to statement of operations	(257)
Changes in estimates recorded to balance sheet	(284)
Expenditures	(2,621)
Currency translation and other	301
Ending balance	$ 59,839
Credit-adjusted risk-free rate	6.32%
Landfill Retirement Liability
Changes to post-closure liabilities
Beginning balance	$ 30,630
Liabilities assumed in acquisitions	0
Measurement period adjustments from prior period acquisitions	0
New asset retirement obligations	1,376
Adjustment related to disposition of business	0
Accretion	1,658
Changes in estimates recorded to statement of operations	(131)
Changes in estimates recorded to balance sheet	0
Expenditures	(2,269)
Currency translation and other	182
Ending balance	31,446
Non-Landfill Retirement Liability
Changes to post-closure liabilities
Beginning balance	27,701
Liabilities assumed in acquisitions	27
Measurement period adjustments from prior period acquisitions	596
New asset retirement obligations	0
Adjustment related to disposition of business	(1,170)
Accretion	1,882
Changes in estimates recorded to statement of operations	(126)
Changes in estimates recorded to balance sheet	(284)
Expenditures	(352)
Currency translation and other	119
Ending balance	$ 28,393

Asset Retirement Obligation, Adjustment Related to Disposition of Business

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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

Represents the amount of change in the asset retirement obligation, during the current period for other changes in estimates recorded in the balance sheet.

+ References

No definition available.

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- Definition

Asset Retirement Obligation, Liabilities Assumed from Business Acquisitions, Originally Reported

+ References

No definition available.

+ Details

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- Definition

Asset Retirement Obligation, Liabilities Assumed from Business Acquisitions, Measurement Period Adjustment

+ References

No definition available.

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- Definition

Asset Retirement Obligations Discount Rate

+ References

No definition available.

+ Details

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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

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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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848

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- Definition

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

+ References

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- Definition

Amount of asset retirement obligations incurred during the period.

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- Definition

Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

+ References

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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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