XML 85 R64.htm IDEA: XBRL DOCUMENT v3.8.0.1
Valuation and Qualifying Accounts Schedule II (Tables)
 12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Summary of Valuation Allowance [Table Text Block]
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
Description
 
Balance at
Beginning of Period
 
Charged to
Costs and Expenses
 
Charged to Other Accounts
 
Deductions(1)
 
Other
 
Balance
at End of Period
 
 
(Dollars in millions)
Successor
 
 

 
 

 
 
 
 

 
 

 
 

April 2 through December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
Reserves deducted from asset accounts:
 
 

 
 
 
 
 
 
 
 
 
 
Advance royalty recoupment reserve
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Reserve for materials and supplies
 
—

 
1.0

 
—

 
(0.4
)
 
—

 
0.6

Allowance for doubtful accounts
 
—

 
4.6

 
—

 
—

 
—

 
4.6

Tax valuation allowances
 
3,288.4

 
(744.9
)
 
—

 
—

 
(111.0
)
(6) 
2,432.5

Predecessor
 
 
 
 
 
 
 
 
 
 
 
 
January 1 through April 1, 2017
 
 
 
 
 
 
 
 
 
 
 
 
Reserves deducted from asset accounts:
 
 
 
 
 
 
 
 
 
 
 
 
Advance royalty recoupment reserve
 
$
7.8

 
$
—

 
$
(7.4
)
(5) 
$
(0.4
)
 
$
—

 
$
—

Reserve for materials and supplies
 
5.6

 
0.5

 
(6.1
)
(5) 
—

 
—

 
—

Allowance for doubtful accounts
 
13.1

 
—

 
(12.8
)
(5) 
(0.3
)
 
—

 
—

Tax valuation allowances
 
4,037.5

 
(777.2
)
 
28.1

(5) 
—

 
—

 
3,288.4

Year Ended December 31, 2016
 
 

 
 

 
 
 
 

 
 

 
 

Reserves deducted from asset accounts:
 
 

 
 

 
 
 
 

 
 

 
 

Advance royalty recoupment reserve
 
$
8.3

 
$
0.5

 
$
—

 
$
(1.0
)
(2) 
$
—

 
$
7.8

Reserve for materials and supplies
 
4.7

 
4.3

 
—

 
(3.4
)
 
—

 
5.6

Allowance for doubtful accounts
 
6.6

 
7.9

 
—

 
(1.4
)
 
—

 
13.1

Tax valuation allowances
 
1,614.1

 
2,453.9

 
—

 
—


(30.5
)
(3) 
4,037.5

Year Ended December 31, 2015
 
 

 
 

 
 
 
 

 
 

 
 

Reserves deducted from asset accounts:
 
 

 
 

 
 
 
 

 
 

 
 

Advance royalty recoupment reserve
 
$
7.6

 
$
—

 
$
—

 
$
(0.9
)
(2) 
$
1.6

(4) 
$
8.3

Reserve for materials and supplies
 
4.6

 
0.4

 
—

 
(0.3
)
 
—

 
4.7

Allowance for doubtful accounts
 
5.8

 
8.0

 
—

 
(7.2
)
 
—

 
6.6

Tax valuation allowances
 
1,366.5

 
452.9

 
—

 
—

 
(205.3
)
(3) 
1,614.1

(1) 
Reserves utilized, unless otherwise indicated.
(2) 
Deductions to advance royalty recoupment reserve represents the termination of federal and state leases.
(3) 
Includes the impact of the decrease in Australian dollar exchange rates.
(4) 
Balances transferred from other accounts.
(5) 
Fresh start reporting adjustments.
(6) 
Release of valuation allowance primarily related to carrybacks of U.S. net operating losses.