XML 35 R23.htm IDEA: XBRL DOCUMENT
v3.19.1

Related Party Transactions (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Related Party Transactions [Abstract] |
Schedule of related party transactions | A summary of the aforementioned significant related party transactions is as follows:
| Three months ended March 31,
| 2019 |  | 2018
Net sales to Glencore | $ | 311.3 |  |  | $ | 296.2 |
Purchases from Glencore | 90.7 |  |  | 48.4 |
Purchases from BHH | 6.1 |  |  | 7.4 |

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