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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Tax Disclosure [Abstract] |
Net deferred tax assets and liabilities | Net deferred tax (liabilities) assets, included on the Consolidated Balance Sheet at December 31, 2020 and 2019 as a component of Other liabilities and Other assets, respectively, are as follows:
Deferred tax assets and liabilities
Table | 12.1 |  |  |  |
(In thousands) |  | 2020 |  | 2019
Total deferred tax assets |  | $ | 38,443 |  |  | $ | 63,533 |
Total deferred tax liabilities |  | (98,485) |  |  | (57,791) |
Net deferred tax (liability) asset |  | $ | (60,042) |  |  | $ | 5,742 |
Components of the net deferred tax asset (liability) | Table 12.2 includes the components of the net deferred tax (liability) asset as of December 31, 2020 and 2019.
Deferred tax components
Table | 12.2 |  |  |  |
(In thousands) |  | 2020 |  | 2019
Unearned premium reserves |  | $ | 23,163 |  |  | $ | 30,487 |
Benefit plans |  | (13,977) |  |  | (10,790) |
Loss reserves |  | 3,542 |  |  | 2,175 |
Unrealized appreciation in investments |  | (72,341) |  |  | (36,822) |
Mortgage investments |  | — |  |  | 8,359 |
Deferred compensation |  | 6,776 |  |  | 9,270 |
AMT credit carryforward |  | — |  |  | 8,303 |
Other, net |  | (7,205) |  |  | (5,240) |
Net deferred tax (liability) asset |  | $ | (60,042) |  |  | $ | 5,742 |
Components of the provision for (benefit from) income taxes | Table 12.3 summarizes the components of the provision for (benefit from) income taxes:
Provision for (benefit from) income taxes
Table | 12.3 |  |  |  |  |  |
(In thousands) |  | 2020 |  | 2019 |  | 2018
Current Federal |  | $ | 85,574 |  |  | $ | 162,911 |  |  | $ | (16,272) |
Deferred Federal |  | 28,244 |  |  | 11,860 |  |  | 185,598 |
Other |  | (648) |  |  | (557) |  |  | 4,727 |
Provision for income taxes |  | $ | 113,170 |  |  | $ | 174,214 |  |  | $ | 174,053 |
Reconciliation of federal statutory income tax rate | Table 12.4 reconciles the federal statutory income tax rate to our effective tax provision rate.
Effective tax rate reconciliation
Table | 12.4 |  |  |  |  |
| 2020 |  | 2019 |  | 2018
Federal statutory income tax rate | 21.0 | % |  | 21.0 | % |  | 21.0 | %
Additional income tax benefit related to IRS litigation | — | % |  | — | % |  | (0.3) | %
Tax exempt municipal bond interest | (0.9) | % |  | (0.6) | % |  | (0.7) | %
Other, net | 0.1 | % |  | 0.1 | % |  | 0.6 | %
Effective tax rate | 20.2 | % |  | 20.5 | % |  | 20.6 | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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