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Acquisition (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions | Aug. 31, 2016 | Aug. 30, 2016 | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill |  |  | $ 950,681 | $ 946,553
Axiall Corporation [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity interest in acquiree held prior to combination, shares |  | 3.1 |  |
Offer per share | $ 33.00 |  |  |
Purchase consideration | $ 2,539,360 |  |  |
Goodwill | $ 887,491 |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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