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Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member] |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | $ 34,479 | $ 16,381 | $ 13,619
Charged to Cost and Expense | 3,875 | 10,341 | 7,700
Reductions | (9,326) | (3,706) | (4,570)
Other | (559) | 11,463 | (368)
Balance at End of Year | 28,469 | 34,479 | 16,381
Deferred Tax Valuation Allowance [Member] |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | 238,236 | 289,237 | 170,958
Additions | 26,162 | 0 | 118,279
Reductions | 0 | (51,001) | 0
Other | 0 | 0 | 0
Balance at End of Year | 264,398 | 238,236 | 289,237
LIFO Reserve [Member] |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at Beginning of Year | 17,571 | 20,245 | 20,179
Charged to Cost and Expense | 3,474 | 1,708 | 686
Reductions | (1,025) | (4,382) | (620)
Other | 0 | 0 | 0
Balance at End of Year | $ 20,020 | $ 17,571 | $ 20,245

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