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Income Taxes Unrecognized Tax Benefits Rollforward (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |
Unrecognized Tax Benefits, Beginning | $ 3,370 | $ 3,570
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions | 60 | 250
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions | 390 | 860
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions | 0 | (100)
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities | 0 | 0
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations | (800) | (1,210)
Unrecognized Tax Benefits, Ending | $ 3,020 | $ 3,370

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=84176650&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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