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ASSET RETIREMENT OBLIGATIONS AND RESTRICTED CASH (Tables)

3 Months Ended

Mar. 31, 2017

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

The following table summarizes the Company’s asset retirement obligations:

	March 31, 2017				December 31, 2016
Asset retirement obligation, beginning of period	$	17,033			$	8,573
Revision of estimate	—				4,186
Acquired in asset acquisitions or business combinations	—				5,454
Accretion of liabilities	345				906
Settlements	(97		)		(2,086		)
Asset retirement obligation, end of period	$	17,281			$	17,033
Asset retirement obligation:
Current	$	32			$	32
Non-current	17,249				17,001
Asset retirement obligation, end of period	$	17,281			$	17,033

Schedule of Restricted Cash and Cash Equivalents

The following table summarizes the Company’s restricted cash:

	March 31, 2017				December 31, 2016
Restricted cash, beginning of period	$	23,175			$	12,980
Restricted cash from acquisitions	—				4,532
Additional collateral posted	—				5,663
Release of collateral related to change in surety agents	(10,811		)		—
Posting of collateral with new surety agents	12,725				—
Restricted cash, end of period	$	25,089			$	23,175

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- References

No definition available.

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859

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- Definition

Tabular disclosure of the cash and cash items which are restricted as to withdrawal or usage. The provisions of any restrictions are described in a note to the financial statements. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

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