[Line Items] for Income Taxes [Table]

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- Definition

Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Ratepayer Net Refund

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

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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Amount of unrecognized tax benefits.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Income tax benefit	$ (2,163)	$ (464)
Income tax benefit increase amount	1,700
Increase in pre-tax loss	8,600
Ratepayer net refund	107,000
Unrecognized tax benefits	10,100			$ 8,000
Tax benefits that, if recognized, would affect the effective tax rate	$ 3,000			$ 3,000
Scenario, Forecast \| Minimum
Income Taxes [Line Items]
Effective tax rate estimate			22.00%