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v3.19.3.a.u2

Commitments and Contingencies (Details) $ in Millions, $ in Millions | 12 Months Ended | 336 Months Ended |
--- | --- | --- | ---
Dec. 31, 2019 AUD ($) | Dec. 31, 2018 AUD ($) | Dec. 31, 2042 | Dec. 31, 2019 USD ($)
Long-term Purchase Commitment [Line Items] |  |  |  |
Take-or-pay obligations |  |  |  | $ 1,100.0
Take-or-pay Obligations Due In One Year |  |  |  | 116.0
Capital Additions |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months |  |  |  | $ 39.7
Monto Coal Pty Limited |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
LossContingencyDamagesSoughtValueMax | $ 18.0 | $ 1,100.0 |  |
Scenario, Forecast |  |  |  |
Long-term Purchase Commitment [Line Items] |  |  |  |
Take-or-pay Arrangement Terms Years (Maximum) |  |  | 23 years |

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- Definition Represents the estimated contractual cash spend in the next twelve months after the balance sheet date related to various short term take or pay arrangements in the U.S. and Australia associated with rail and port commitments for the delivery of coal including amounts relating to export facilities. + References No definition available. + Details
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- Definition Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77896938&loc=d3e25336-109308 + Details
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