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Business Segment Information (Narrative) (Details) $ in Thousands |  | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 01, 2017 USD ($) | Sep. 30, 2017 USD ($) segment | Sep. 30, 2016 USD ($) | Aug. 14, 2017 USD ($) | Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Cash payment to acquire business |  | $ 1,325,759 | $ 25,394 |  |
Number of reportable segments | segment |  | 4 |  |  |
6.500% Senior Unsecured Notes Due October 2025 |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Debt issued |  | $ 550,000 |  |  | $ 0
Private Placement | Class A Convertible Preferred Stock Units |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Proceeds from issuance of convertible preferred stock, gross | $ 750,000 |  |  |  |
Alkali Business |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cash payment to acquire business | 1,325,000 |  |  |  |
Alkali Business | 6.500% Senior Unsecured Notes Due October 2025 |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Debt issued | 550,000 |  |  | $ 550,000 |
Alkali Business | Private Placement | Class A Convertible Preferred Stock Units |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Proceeds from issuance of convertible preferred stock, gross | $ 750,000 |  |  |  |

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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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