Edith River Derailment	9 Months Ended
Sep. 30, 2013
EDITH RIVER DERAILMENT [Abstract]
Schedule of Insurance Claims Related to Specific Event	EDITH RIVER DERAILMENT: On December 27, 2011, a train operated by GWA derailed on the Edith River Bridge in Australia's Northern Territory (the Edith River Derailment). Flood waters associated with heavy rainfall from Cyclone Grant washed away the southern portion of the Edith River Bridge while a northbound GWA intermodal train consisting of three locomotives, an unoccupied crew van and 33 rail cars was passing over the bridge en route to Darwin. The locomotives were damaged and the crew van and several intermodal containers and rail cars containing copper concentrate were derailed into the river. The railroad segment between Katherine and Darwin remained out of service for approximately 60 days. The Edith River Bridge reopened on February 29, 2012. In June 2012, the Company recorded a gain on insurance recovery and a related insurance receivable of A$4.8 million (or $4.8 million at the average exchange rate in June 2012) for a business interruption claim. In September 2013, the Company recorded an additional gain on insurance recovery and a related insurance receivable of A$1.6 million (or $1.5 million at the average exchange rate in September 2013). In December 2011, the Company recorded a liability of A$15.0 million (or $15.3 million at the exchange rate on December 31, 2011) for the estimated repair and related costs associated with the Edith River Derailment. Since the Company believes substantially all of these costs will be recovered through insurance, the Company also recorded a receivable of A$14.0 million (or $14.3 million at the exchange rate on December 31, 2011), with the difference representing the Company's insurance deductible. The Company increased its estimate of costs associated with the Edith River Derailment, as well as its estimate of insurance recovery, each by A$12.8 million (or $13.3 million at the exchange rate on December 31, 2012) during the twelve months ended December 31, 2012. During the twelve months ended December 31, 2012, the Company made cash payments of A$26.3 million (or $27.3 million at the average exchange rate during the period) as a result of the derailment and received cash proceeds from insurance of A$22.1 million (or $20.9 million at the exchange rate on the date received). During the nine months ended September 30, 2013, the Company recorded an additional net liability of A$1.8 million (or $1.6 million at the exchange rate on September 30, 2013), made cash payments of A$2.7 million (or $2.6 million at the average exchange rate during the period) and received cash proceeds from insurance of A$10.0 million (or $10.4 million at the average exchange rates during the periods in which the cash was collected) related to the derailment. The Company believes it is possible that additional claims related to the Edith River Derailment may arise and additional costs may be incurred. The Company is unable to estimate the range of such claims based on currently available information. However, the Company does not anticipate that these additional claims or costs, if any, will have a material adverse effect on its operating results, financial condition or liquidity.

EDITH RIVER DERAILMENT:

On December 27, 2011, a train operated by GWA derailed on the Edith River Bridge in Australia's Northern Territory (the Edith River Derailment). Flood waters associated with heavy rainfall from Cyclone Grant washed away the southern portion of the Edith River Bridge while a northbound GWA intermodal train consisting of three locomotives, an unoccupied crew van and 33 rail cars was passing over the bridge en route to Darwin. The locomotives were damaged and the crew van and several intermodal containers and rail cars containing copper concentrate were derailed into the river.

The railroad segment between Katherine and Darwin remained out of service for approximately 60 days. The Edith River Bridge reopened on February 29, 2012. In June 2012, the Company recorded a gain on insurance recovery and a related insurance receivable of A$4.8 million (or $4.8 million at the average exchange rate in June 2012) for a business interruption claim. In September 2013, the Company recorded an additional gain on insurance recovery and a related insurance receivable of A$1.6 million (or $1.5 million at the average exchange rate in September 2013).

In December 2011, the Company recorded a liability of A$15.0 million (or $15.3 million at the exchange rate on December 31, 2011) for the estimated repair and related costs associated with the Edith River Derailment. Since the Company believes substantially all of these costs will be recovered through insurance, the Company also recorded a receivable of A$14.0 million (or $14.3 million at the exchange rate on December 31, 2011), with the difference representing the Company's insurance deductible. The Company increased its estimate of costs associated with the Edith River Derailment, as well as its estimate of insurance recovery, each by A$12.8 million (or $13.3 million at the exchange rate on December 31, 2012) during the twelve months ended December 31, 2012. During the twelve months ended December 31, 2012, the Company made cash payments of A$26.3 million (or $27.3 million at the average exchange rate during the period) as a result of the derailment and received cash proceeds from insurance of A$22.1 million (or $20.9 million at the exchange rate on the date received). During the nine months ended September 30, 2013, the Company recorded an additional net liability of A$1.8 million (or $1.6 million at the exchange rate on September 30, 2013), made cash payments of A$2.7 million (or $2.6 million at the average exchange rate during the period) and received cash proceeds from insurance of A$10.0 million (or $10.4 million at the average exchange rates during the periods in which the cash was collected) related to the derailment.

The Company believes it is possible that additional claims related to the Edith River Derailment may arise and additional costs may be incurred. The Company is unable to estimate the range of such claims based on currently available information. However, the Company does not anticipate that these additional claims or costs, if any, will have a material adverse effect on its operating results, financial condition or liquidity.