|
Asset Retirement Obligations (Tables)
|
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2012
|
|||||||||||||||||||||||||||||||||||||||||||||
| Asset Retirement Obligation Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Asset Retirement Obligations Roll-Forward |
The following table summarizes the asset retirement obligation activity for the three months ended September 30, 2012:
|
||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the carrying amount of a liability for asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|