Accrued Expenses and Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) $ in Thousands, $ in Millions	Sep. 30, 2022 AUD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Accrued Expenses and Other Current Liabilities [Abstract]
Wages and employee benefits		$ 42,038	$ 41,187
Taxes other than income taxes		8,825	6,246
Accrued royalties		165,636	70,237
Accrued freight costs		36,962	27,754
Accrued mining fees		73,712	65,835
Acquisition related accruals		27,959	31,201
Other liabilities		50,972	28,482
Total accrued expenses and other current liabilities		$ 406,104	270,942
Stamp duty payable	$ 43.0		$ 28,000