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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense increase (decrease) | $ 3,400 |  | $ 6,000 |
Income tax expense (benefit) | 1,442 | $ 4,808 | (3,408) | $ 2,645
Pre-tax loss increase (decrease) | 17,400 |  | $ 25,400 |
Effective tax rate estimate |  |  | 18.50% |
Ratepayer net refund | 121,000 |  | $ 121,000 |
Unrecognized tax benefits | 12,400 | 10,600 | 12,400 | 10,600
Tax benefits that, if recognized, would affect the effective tax rate | $ 3,000 | $ 3,100 | $ 3,000 | $ 3,100

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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