Investments in Affiliated Companies - Rollforward (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Equity Method Investments | |||
| Balance at beginning of period | $ 459,406 | $ 0 | |
| Investments in affiliated companies | 9,000 | 0 | $ 0 |
| Equity in net income of affiliated companies | 47,371 | 33,684 | |
| Charges related to purchase accounting fair value adjustments | (8,599) | (36,296) | |
| Dividends received | (44,071) | (7,636) | |
| Foreign currency translation adjustments | 6,050 | (3,340) | |
| Balance at end of period | 469,276 | 459,406 | $ 0 |
| PQ Holdings, Eco Services | |||
| Equity Method Investments | |||
| Equity method investments assumed in business combination | 0 | 472,994 | |
| Sovitec Mondial S.A. | |||
| Equity Method Investments | |||
| Equity method investments assumed in business combination | $ 119 | $ 0 | |
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- Definition Equity Method Investments, Assumed In Business Combination No definition available.
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- Definition Equity Method Investments Charges Related to Purchase Accounting No definition available.
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- Definition Equity Method Investments [Roll Forward] No definition available.
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- Definition Foreign Currency Adjustments Related to Equity Method Investments No definition available.
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- Definition Income (Loss) from Equity Method Investments, Excluding Purchase Accounting Adjustments No definition available.
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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