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Income Taxes - Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
State Losses Carry Over, Expiring in 2021 and 2040	$ 287,400
State Tax Carry Over, Indefinitely	27,800
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Loss carryforwards	1,031,200
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	97,000
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	934,200
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Loss carryforwards	$ 315,200	$ 54,100

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- Definition

State Losses Carry Over, Expiring in 2021 and 2040

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State Tax Carry Over, Indefinitely

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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.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

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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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