Supplemental Cash Flow Information - Additional Information (Details) - USD ($) $ in Thousands		6 Months Ended		8 Months Ended
	Oct. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020
Cash Flow Supplemental Disclosures [Line Items]
Capital expenditures		$ 418,991	$ 415,626
Tax Cuts Jobs Act Of 2017, Transition Tax For Accumulated Foreign Earnings, Liability, Current		30,400	$ 14,400	$ 30,400
Mineral Resources Limited Wodgina Project
Cash Flow Supplemental Disclosures [Line Items]
Ownership percentage	60.00%
Consideration transferred	$ 1,300,000	1,322,566
Lithium Hydroxide Conversion Assets
Cash Flow Supplemental Disclosures [Line Items]
Ownership percentage	40.00%
Lithium Hydroxide Conversion Assets | Mineral Resources Limited Wodgina Project
Cash Flow Supplemental Disclosures [Line Items]
Capital expenditures		87,800		$ 252,500
Consideration transferred		$ 480,000