XML 44 R27.htm IDEA: XBRL DOCUMENT v3.19.1

ASSET RETIREMENT OBLIGATIONS AND RESTRICTED CASH (Tables)

3 Months Ended

Mar. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

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

	March 31, 2019				December 31, 2018
Asset retirement obligation, beginning of period	$	19,104			$	18,280
Revision of estimate	—				(662		)
Accretion of liabilities	513				1,835
Settlements	—				(349		)
Asset retirement obligation, end of period	$	19,617			$	19,104
Asset retirement obligation:
Current	$	270			$	270
Non-current	19,347				18,834
Asset retirement obligation, end of period	$	19,617			$	19,104

Schedule of Restricted Cash and Cash Equivalents

The following table summarizes the Company’s restricted cash:

	March 31, 2019				December 31, 2018
Restricted cash, beginning of period	$	19,652			$	22,127
Additional collateral posted	—				117
Refunds of collateral	30				(2,592		)
Restricted cash, end of period	$	19,682			$	19,652

Cash, cash equivalents and restricted cash are included in the following accounts at March 31, 2019 and December 31, 2018:

	March 31, 2019				December 31, 2018
Cash and cash equivalents	$	15,310			$	14,640
Restricted cash included in other long-term assets	19,682				19,652
Total cash, cash equivalents and restricted cash	$	34,992			$	34,292

X

- References

No definition available.

+ Details

Name:	us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

Name:	us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(1)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586

+ Details

Name:	us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration