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Income Taxes - Operating Loss Carryforwards (Details) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 92.8 |
Valuation allowance | 182.5 | $ 194.8
State Tax [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | 1.0 |
Tax Year 2017 - 2027 [Member] | State Tax [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credits | 1.3 |
Tax Year 2017 - 2018 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 3.4 |
Indefinite |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 76.7 |
Tax Year 2023 - 2034 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 12.7 |
LUXEMBOURG |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | 166.3 |
Philippines [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | 2.7 |
Brazil [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Valuation Allowance | 3.4 |
Spain [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Valuation allowance | $ 9.1 |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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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 The amount of the tax credit 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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