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Income Taxes (Components of Provision for Income Taxes) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Current provision: |  |  |
State | $ 5,764 | $ 5,513 | $ 1,535
Foreign | 13,756 | 11,681 | 8,121
Total current | 19,520 | 17,194 | 9,656
Deferred provision (benefit) for taxes: |  |  |
Federal | (9,463) | 18,736 | 170,177
State | (1,412) | (241) | 22,992
Foreign | (16,673) | 9,155 | 30,425
Change in valuation allowance | 12,261 | (31,607) | (222,185)
Total deferred | (15,287) | (3,957) | 1,409
Total provision for income taxes | $ 4,233 | $ 13,237 | $ 11,065

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- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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