XML 39 R71.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements (Narrative) (Details) (IPL [Member]) | 9 Months Ended
--- | ---
Sep. 30, 2014
IPL [Member] |
Cumulative preferred stock rate | 5.10%

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration