XML 45 R28.htm IDEA: XBRL DOCUMENT
v3.20.4

Related Party Transactions (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Related Party Transactions [Abstract] |
Schedule of related party transactions | A summary of the aforementioned significant related party transactions for the years ended December 31, 2020, 2019 and 2018 is as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Net sales to Glencore | $ | 1,025.5 |  |  | $ | 1,191.6 |  |  | $ | 1,204.5 |
Purchases from Glencore | 197.6 |  |  | 323.9 |  |  | 319.6 |
Purchases from BHH (1) | — |  |  | 17.8 |  |  | 28.4 |
(1) We previously owned a 40% interest in Baise Haohai Carbon Co. Ltd. ("BHH") and purchased carbon anodes from them for use in our operations. Purchases represented herein were prior to the divestiture of our interest in BHH in May 2019.

X
- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration