Number of related party capital lease agreements entered into.

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Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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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.

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Amount of cash paid during the period to settle an asset retirement obligation. Amounts paid to settle an asset retirement obligation are generally included in the operating section of the Statement of Cash Flows.

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- Definition

The charge for the use of long-lived depreciable capital leased assets for the period.

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- Definition

Amount of the required periodic payments including both interest and principal payments.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- 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

No definition available.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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No definition available.

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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RELATED PARTY TRANSACTIONS (Detail) $ in Thousands	12 Months Ended
RELATED PARTY TRANSACTIONS (Detail) $ in Thousands	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Apr. 30, 1994 Lease
Related Party Transaction [Line Items]
Total services purchased	$ 3,377	$ 4,024	$ 1,341
Outstanding accounts payable	30	18
Number of leases \| Lease				2
Total expense charged to operations under lease agreement	360	371	384
Accrued costs associated with post-closure obligations	62,290	44,207	41,041
Restricted assets - landfill closure
Related Party Transaction [Line Items]
Landfill post-closure cost	27	10	9
Accrued costs associated with post-closure obligations	$ 60	70
Capital Lease Obligations
Related Party Transaction [Line Items]
Lease extended period	5 years
CCI
Related Party Transaction [Line Items]
Revenue from related party	$ 237	$ 307	$ 415
Related Party
Related Party Transaction [Line Items]
Leases monthly payments	$ 28