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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
Allowance for Doubtful Accounts |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Valuation Allowances and Reserves, Balance, Beginning | $ 15,549 | $ 14,234 | $ 14,435
Valuation Allowances and Reserves, Charged to Cost and Expense | 1,167 | 1,403 | 1,087
Valuation Allowances and Reserves, Charged to Other Accounts | 678 | 1,005 | 760
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 569 | 1,093 | 528
Valuation Allowances and Reserves, Balance, Ending | 15,469 | 15,549 | 14,234
Valuation Allowance of Deferred Tax Assets |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Valuation Allowances and Reserves, Balance, Beginning | 12,857 | 10,730 | 25,435
Valuation Allowances and Reserves, Charged to Cost and Expense | 0 | 9,513 | 0
Valuation Allowances and Reserves, Charged to Other Accounts | 3,023 | 72,170 | 0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 796 | 79,556 | 14,705
Valuation Allowances and Reserves, Balance, Ending | $ 15,084 | $ 12,857 | $ 10,730

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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