The term for which carryforwards are permitted to be used.

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- Definition

Income Tax [Line Items]

+ References

No definition available.

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- Definition

The percentage of taxable income that can be used to offset future taxable periods as a result of the TCJA.

+ References

No definition available.

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- Definition

Period of unrecognized tax benefits in which no significant change has been anticipated.

+ References

No definition available.

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- Definition

The potential amount that may expire in a future period.

+ References

No definition available.

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- Definition

The amount of unlimited tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

No definition available.

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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
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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

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
-Paragraph 10B
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Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes
Unrecognized tax benefits from uncertain tax	$ 0	$ 0	$ 0
Period over which material changes in unrecognized tax positions are not expected	12 months
Federal [Member]
Income Taxes
Cumulative net operating loss carryforwards	$ 327,500
Percentage of taxable income that can be used to offset future taxable periods as a result of the TCJA	80.00%
Unlimited carryforward	$ 130,100
Tax credit carryforwards	26,700
State [Member]
Income Taxes
Cumulative net operating loss carryforwards	322,000
Tax credit carryforwards	$ 1,900
State [Member] \| Massachusetts
Income Taxes
Carryforward term	20 years
Potential amount that may expire in a future period	$ 23,400
State [Member] \| Pennsylvania
Income Taxes
Carryforward term	20 years