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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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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)
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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