Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate from continuing operations	(0.22%)
Federal statutory income tax rate	21.00%
Unrecognized tax benefits		$ 2.5
Operating loss carryforwards state		193.4
Operating loss carryforwards federal		$ 273.7
Federal and state net operating loss carryforwards, beginning expiring year		2021
Federal and state net operating loss carryforwards, ending expiring year		2040
State research and development tax credit carryforwards		$ 3.2
Cumulative change in ownership percentage	50.00%
Period for cumulative change in ownership	3 years

Cumulative change in ownership percentage.

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- Definition

Deferred tax assets operating loss carryforwards beginning expiring year.

+ References

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Deferred tax assets operating loss carryforwards ending expiring year.

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- Definition

Deferred Tax Assets Tax Credit Carryforwards Research State

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Period for cumulative change in ownership.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of unrecognized tax benefits.

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