Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Income Taxes - NOL carryforwards (Details)

v3.20.4

Income Taxes - NOL carryforwards (Details) $ in Millions	Dec. 31, 2020 USD ($)
Indefinite Carryforward Period
Operating Loss Carryforwards [Line Items]
NOL carryforwards	$ 158.7
Expire at Various Dates Through 2037
Operating Loss Carryforwards [Line Items]
NOL carryforwards	135.7
Federal
Operating Loss Carryforwards [Line Items]
NOL carryforwards	294.4
Tax credits	14.9
State
Operating Loss Carryforwards [Line Items]
NOL carryforwards	298.0
Tax credits	$ 3.2

- 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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