XML 41 R44.htm IDEA: XBRL DOCUMENT v3.3.0.814
Acquisition Approval Conditions (Details)
1 Months Ended
Jun. 30, 2015
Jun. 29, 2015
Wisconsin Electric    
Acquisition    
Duration of earnings cap condition imposed by the PSCW 3 years  
ROE in excess of authorized amount   0.005
Wisconsin Gas    
Acquisition    
Duration of earnings cap condition imposed by the PSCW 3 years  
Percentage of first 50 basis points to be shared with customers   50.00%
ROE in excess of authorized amount   0.005
PGL    
Acquisition    
Duration of rate base freeze condition imposed by the ICC 2 years  
NSG    
Acquisition    
Duration of rate base freeze condition imposed by the ICC 2 years