Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481850/410-20-50-1

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Period Type:	duration