Amount of income tax expense (benefit) from effect of Coronavirus Aid, Relief, and Economic Security (CARES) Act.

No definition available.

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- Definition

Percentage of taxable income that can be offset by federal net operating losses incurred in 2018 and in future years under the Tax Cut and Jobs Act of 2017 and modified by the Coronavirus Aid, Relief, and Economic Security, or CARES, Act.

+ References

No definition available.

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- Definition

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

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- Definition

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

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

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2021	Dec. 31, 2019
Income Taxes [Abstract]
Percentage of taxable income that can be offset with federal net operating losses	100.00%			80.00%
Tax benefit related to CARES Act	$ (1,700)
Income tax expense (benefit)	$ (3,257)	$ 31,047
Effective tax rate	5.28%
Federal statutory rate	21.00%
Akcea [Member]
Income Taxes [Abstract]
Tax benefit related to CARES Act	$ (1,700)
Plan [Member]
Income Taxes [Abstract]
Percentage of taxable income that can be offset with federal net operating losses			80.00%