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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Valuation and Qualifying Accounts Disclosure [Line Items] |
VALUATION AND QUALIFYING ACCOUNTS | PEABODY ENERGY CORPORATION SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
Description |  | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Deductions(1) |  | Other |  | Balance at End of Period
|  | (Dollars in millions)
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 |
Year Ended December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advance royalty recoupment reserve |  | $ | 9.7 |  |  | $ | (0.2 | ) |  | $ | (1.9 | ) | (2) | $ | — |  |  | $ | 7.6 |
Reserve for materials and supplies |  | 7.4 |  |  | (0.1 | ) |  | (2.7 | ) |  | — |  |  | 4.6 |
Allowance for doubtful accounts |  | 7.4 |  |  | 1.5 |  |  | (1.4 | ) |  | (1.7 | ) | (5) | 5.8 |
Tax valuation allowances |  | 1,885.4 |  |  | 534.7 |  |  | — |  |  | (1,053.6 | ) | (6) | 1,366.5 |
(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) | Represents subsequent recovery of receivable amounts previously reserved.
(6) | Includes the write-off of valuation allowance against deferred tax assets related to the Australian Minerals and Resource Rent Tax (MRRT) due to the repeal of that legislation in 2014, along with an increase in valuation allowance during the period reflected directly in "Accumulated other comprehensive loss" and the impact of the 2014 decrease in Australian dollar exchange rates.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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