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Income Taxes - Net Operating Loss Carryforwards (Details) $ in Millions	Dec. 31, 2018 USD ($)
Federal
Net operating loss carryforwards
Net operating loss carryforwards	$ 154.5
Net operating loss carryforward with no expiration date	$ 27.2
Net operating loss carryforward utilization percent for assets with no expiration (as a percent)	80.00%
State
Net operating loss carryforwards
Net operating loss carryforwards	$ 120.6
Foreign
Net operating loss carryforwards
Net operating loss carryforwards	$ 15.8

X

- Definition

Represents the net operating loss carryforward utilization percent with no expiration dates.

+ References

No definition available.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

+ References

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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://fasb.org/us-gaap/role/ref/legacyRef
-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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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