ACQUISITIONS - Missouri Gas Energy (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Sep. 30, 2014
Laclede Gas
|
Sep. 30, 2013
Laclede Gas
|
Sep. 30, 2012
Laclede Gas
|
Sep. 01, 2013
Laclede Gas
|
Sep. 30, 2014
Missouri Gas Energy (MGE)
|
Sep. 30, 2013
Missouri Gas Energy (MGE)
|
Sep. 01, 2013
Missouri Gas Energy (MGE)
|
Feb. 14, 2014
Missouri Gas Energy (MGE)
Laclede Gas
|
Dec. 20, 2013
Missouri Gas Energy (MGE)
Laclede Gas
|
Sep. 01, 2013
Missouri Gas Energy (MGE)
Laclede Gas
|
Sep. 30, 2014
Missouri Gas Energy (MGE)
Laclede Gas
|
Sep. 30, 2013
Missouri Gas Energy (MGE)
Laclede Gas
|
Sep. 01, 2013
Scenario, Previously Reported
Missouri Gas Energy (MGE)
|
Sep. 01, 2013
Scenario, Previously Reported
Missouri Gas Energy (MGE)
Laclede Gas
|
|
Business Acquisition [Line Items] | |||||||||||||||||
Acquisition purchase price | $ (23.9) | $ 975.0 | $ 0 | $ (23.9) | $ 975.0 | $ 0 | $ 475.0 | $ 975.0 | |||||||||
Fair value adjustment of assets | 23.9 | ||||||||||||||||
Proceeds from final reconciliation of acquisition of Missouri Gas Energy | 11.0 | ||||||||||||||||
Total consideration transferred | 940.2 | 940.2 | |||||||||||||||
Goodwill | $ 937.8 | $ 247.1 | $ 210.2 | $ 247.1 | $ 210.2 | $ 210.2 | $ 247.1 | $ 210.2 | $ 210.2 | $ 247.1 | $ 247.1 | $ 247.1 |