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Income Taxes Operating Loss Carryforwards Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($)
State and Local Jurisdiction [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 43.4
Foreign Tax Authority [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 19.5
Minimum [Member] | State and Local Jurisdiction [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards, Expiration Date | Jan. 01, 2024
Maximum [Member] | State and Local Jurisdiction [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards, Expiration Date | Dec. 31, 2028

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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- Definition Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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