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ACQUISITIONS (Tables)
9 Months Ended
Sep. 30, 2018
Bishop Hill III Wind Energy Center  
Business Acquisition [Line Items]  
Allocation of purchase price
The table below shows the preliminary allocation of the purchase price to the assets acquired and liabilities assumed at the date of the acquisition. The allocation is subject to change during the remainder of the measurement period, which ends one year from the acquisition date, as we obtain additional information.
(in millions)
 
 
Current assets
 
$
1.4

Net property, plant, and equipment
 
189.0

Other long-term assets *
 
4.5

Current liabilities
 
(1.6
)
Long-term liabilities
 
(8.3
)
Noncontrolling interest
 
(37.0
)
Total purchase price
 
$
148.0


*
Represents restricted cash.
Forward Wind Energy Center Acquisition  
Business Acquisition [Line Items]  
Allocation of purchase price
The table below shows the allocation of the purchase price to the assets acquired at the date of the acquisition, which are included in rate base.
(in millions)
 
 
Current assets
 
$
0.2

Net property, plant, and equipment
 
76.9

Total purchase price
 
$
77.1

Bluewater  
Business Acquisition [Line Items]  
Allocation of purchase price
The table below shows the allocation of the purchase price to the assets acquired and liabilities assumed at the date of the acquisition. The excess of the purchase price over the estimated fair values of the assets acquired and liabilities assumed was recognized as goodwill. Bluewater is included in the non-utility energy infrastructure segment.
(in millions)
 
 
Current assets
 
$
2.0

Net property, plant, and equipment
 
218.3

Goodwill
 
6.6

Current liabilities
 
(0.9
)
Total purchase price
 
$
226.0