Goodwill and Other Intangibles Changes in Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 1,567,169	$ 1,610,355
Foreign currency translation adjustments and other	(20,146)	(43,186)
Goodwill, Ending Balance	1,578,785	1,567,169
All Other
Goodwill [Roll Forward]
Goodwill, Beginning Balance	6,586	6,586
Foreign currency translation adjustments and other	0	0
Goodwill, Ending Balance	6,586	6,586
Reportable Segments \| Lithium
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,354,779	1,389,089
Foreign currency translation adjustments and other	(15,695)	(34,310)
Goodwill, Ending Balance	1,370,846	1,354,779
Reportable Segments \| Bromine Specialties
Goodwill [Roll Forward]
Goodwill, Beginning Balance	20,319	20,319
Foreign currency translation adjustments and other	0	0
Goodwill, Ending Balance	20,319	20,319
Reportable Segments \| Catalysts
Goodwill [Roll Forward]
Goodwill, Beginning Balance	185,485	194,361
Foreign currency translation adjustments and other	(4,451)	(8,876)
Goodwill, Ending Balance	181,034	$ 185,485
Mineral Resources Limited Wodgina Project
Goodwill [Roll Forward]
Acquisitions	31,762
Goodwill, Ending Balance	31,762
Mineral Resources Limited Wodgina Project \| All Other
Goodwill [Roll Forward]
Acquisitions	0
Mineral Resources Limited Wodgina Project \| Reportable Segments \| Lithium
Goodwill [Roll Forward]
Acquisitions	31,762
Mineral Resources Limited Wodgina Project \| Reportable Segments \| Bromine Specialties
Goodwill [Roll Forward]
Acquisitions	0
Mineral Resources Limited Wodgina Project \| Reportable Segments \| Catalysts
Goodwill [Roll Forward]
Acquisitions	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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