Annual Tonnes Hauled

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- Definition

Enterprise value Partnership Amount

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- Definition

Entity Number of Locomotives Owned or Leased

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Entity Number of Train Sets Owned or Leased

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Entity Number of Wagons Owned or Leased

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- Definition

Percentage Consolidated

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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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No definition available.

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Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 30
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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Face (par) amount of debt instrument at time of issuance.

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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
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-SubTopic 10
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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- Definition

Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Events GRail Transaction (Details) carload in Millions, AUD in Millions, $ in Millions		3 Months Ended	9 Months Ended
	Oct. 20, 2016 USD ($) carload	Dec. 31, 2016 AUD	Sep. 30, 2016 carload	Oct. 20, 2016 AUD locomotive wagon Train_Sets $ / AUD	Oct. 20, 2016 USD ($) locomotive wagon Train_Sets $ / AUD	Sep. 30, 2015 $ / £	Mar. 25, 2015 $ / £	Mar. 20, 2015 AUD	Mar. 20, 2015 USD ($)
Subsequent Event [Line Items]
Foreign currency exchange rate \| $ / £						1.51	1.49
GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Business Acquisition, Date of Acquisition Agreement	Oct. 20, 2016
Foreign currency exchange rate \| $ / AUD				0.76	0.76
Train Sets \| Train_Sets				9	9
Locomotives \| locomotive				30	30
Wagons \| wagon				894	894
GWA [Member] \| GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage Consolidated		100.00%
MIRA [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				49.00%	49.00%
Australian term loan [Member] \| Loans Payable [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount								AUD 324.6	$ 252.5
Steam Coal [Domain] \| G&W Freightliner Australia [Domain]
Subsequent Event [Line Items]
Annual Steam Coal haulage \| carload			40
Scenario, Forecast [Member] \| GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Cash consideration	$ 866.0	AUD 88.0
Business Acquisition, Transaction Costs		32.0
Long-term Line of Credit				AUD 50.0	$ 38.0
Scenario, Forecast [Member] \| GWA [Member] \| GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross		1,140.0
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable		597.0
Scenario, Forecast [Member] \| MIRA [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from Noncontrolling Owners		644.0
Scenario, Forecast [Member] \| Corporate Joint Venture [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Enterprise Value Partnership Amount		2,019.0
Scenario, Forecast [Member] \| Loans Payable [Member] \| GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount \| $					$ 524.0
Scenario, Forecast [Member] \| GWA Term Loan [Member] \| Loans Payable [Member] \| GWA [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from Issuance of Debt		690.0
Scenario, Forecast [Member] \| Australian term loan [Member] \| Loans Payable [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Long-term Debt, Gross		AUD 250.0
Scenario, Forecast [Member] \| Steam Coal [Domain] \| GRail [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Annual Steam Coal haulage \| carload	40