Ownership Percentage

No definition available.

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- Definition

Termination of Option Agreement

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Details

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- Details

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- Details

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Balance Type:
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- Details

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Investments - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Feb. 28, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Investments [Line Items]
Termination of Tianqi Lithium Corporation option agreement	$ 13,100		$ 0
Windfield Holdings
Schedule of Investments [Line Items]
Equity method investment, ownership percentage		49.00%
Carrying value of unconsolidated investment		$ 341,700		$ 355,200
Other variable interest entities
Schedule of Investments [Line Items]
Carrying value of unconsolidated investment		$ 8,400		$ 8,700
Rockwood Lithium GmbH
Schedule of Investments [Line Items]
Ownership percentage	100.00%
Minimum \| Rockwood Lithium GmbH
Schedule of Investments [Line Items]
Ownership percentage		20.00%
Maximum \| Rockwood Lithium GmbH
Schedule of Investments [Line Items]
Ownership percentage		30.00%