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Other Information
 6 Months Ended
Jun. 30, 2018
Other Liabilities Disclosure [Abstract]  
Other Information
(14) Other Information

The following tables present additional detail for other current assets and other current liabilities, which consists of the following (in millions):
Other Current Assets:
 
June 30, 2018
 
December 31, 2017
Natural gas and NGLs inventory
 
$
60.8

 
$
30.1

Secured term loan receivable from contract restructuring, net of discount of $1.6
 
17.9

 
—

Prepaid expenses and other
 
20.4

 
11.1

Natural gas and NGLs inventory, prepaid expenses, and other
 
$
99.1

 
$
41.2

Other Current Liabilities:
 
June 30, 2018
 
December 31, 2017
Accrued interest
 
$
36.6

 
$
35.6

Accrued wages and benefits, including taxes
 
18.0

 
30.4

Accrued ad valorem taxes
 
25.9

 
27.8

Capital expenditure accruals
 
41.8

 
48.8

Onerous performance obligations
 
17.9

 
15.2

Other
 
66.2

 
65.1

Other current liabilities
 
$
206.4

 
$
222.9