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Income Taxes - Operating Loss Carryforwards (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | $ 326,700
U.S. NOLs |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 272,696
U.S. NOLs | 2019 - 2023 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 0
U.S. NOLs | 2024 - 2028 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 0
U.S. NOLs | 2028 - 2038 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 194,381
U.S. NOLs | Does not expire |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 78,315
Foreign NOLs |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 53,983
Foreign NOLs | 2019 - 2023 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 9,022
Foreign NOLs | 2024 - 2028 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 1,901
Foreign NOLs | 2028 - 2038 |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 208
Foreign NOLs | Does not expire |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 42,852
R&D Credits |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | 609
R&D Credits | 2019 - 2023 |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | 0
R&D Credits | 2024 - 2028 |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | 0
R&D Credits | 2028 - 2038 |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | 609
R&D Credits | Does not expire |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | $ 0

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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 + 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://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 + Details
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