2.2.0.7
false
Asset Retirement Obligations (Tables)
008060 - Disclosure - Asset Retirement Obligations (Tables)
true
false
false
false
1
USD
false
false
u000
Standard
http://www.xbrl.org/2003/iso4217
USD
iso4217
0
u001
Standard
http://www.xbrl.org/2003/instance
pure
xbrli
0
u002
Standard
http://www.xbrl.org/2003/instance
shares
xbrli
0
u003
Divide
http://www.xbrl.org/2003/iso4217
USD
iso4217
http://www.xbrl.org/2003/instance
shares
xbrli
0
$
2
0
str_NotesToFinancialStatementsAbstract
str
false
na
duration
No definition available.
false
false
false
false
false
true
false
false
false
false
false
false
|
1
false
false
false
false
0
0
false
false
false
|
xbrli:stringItemType
string
No definition available.
false
3
1
str_ChangesInAroTextBlock
str
false
na
duration
A reconciliation of the asset retirement obligation from the beginning of a period to the end of a period. An asset...
false
false
false
false
false
false
false
false
false
false
false
terselabel
false
|
1
false
false
false
false
0
0
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt">Changes in ARO were as follows:</font></div><div style="TEXT-INDENT: 0pt; DISPLAY: block"><br /></div><div><table style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt" cellspacing="0" cellpadding="0" width="100%"><tr><td valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">  </font></td><td valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td valign="bottom" colspan="2"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">2010</font></div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td valign="bottom" colspan="2"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">2009</font></div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr><td style="BORDER-BOTTOM: black 2px solid" valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">  </font></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="2"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">(recast)</font></div></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" colspan="2"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(recast)</font></div></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr><td valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">  </font></td><td valign="bottom"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td valign="bottom" colspan="6"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(in millions)</font></div></td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">ARO liability at December 31</font></div></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">$</font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">65.0</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">$</font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">58.9</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr bgcolor="white"><td valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Accretion</font></div></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">2.1</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">2.5</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr bgcolor="#cceeff"><td valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Liabilities incurred</font></div></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">0.7</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">0.4</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr bgcolor="white"><td valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Revisions</font></div></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">(8.2</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">)</font></td><td valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">2.4</font></td><td style="TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr><tr bgcolor="#cceeff"><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">Liabilities settled</font></div></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">(0.2</font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">)</font></td><td style="BORDER-BOTTOM: black 2px solid" valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(0.3</font></td><td style="BORDER-BOTTOM: black 2px solid; TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">)</font></td></tr><tr bgcolor="white"><td style="BORDER-BOTTOM: black 4px double" valign="bottom" width="76%" align="left"><div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">ARO liability at September 30</font></div></td><td style="BORDER-BOTTOM: black 4px double" valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">$</font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">59.4</font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold"> </font></td><td style="BORDER-BOTTOM: black 4px double" valign="bottom" width="1%" align="right"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">$</font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right" valign="bottom" width="9%"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">63.9</font></td><td style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: left" valign="bottom" width="1%" nowrap="nowrap"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"> </font></td></tr></table></div>
Changes in ARO were as follows:   2010  2009    (recast)  (recast)    (in millions) ARO
false
false
false
|
us-types:textBlockItemType
textblock
A reconciliation of the asset retirement obligation from the beginning of a period to the end of a period. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service 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.
No authoritative reference available.
false
1
2
false
UnKnown
UnKnown
UnKnown
false
true