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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of Components of Income Tax Provision | The components of our consolidated income tax provision from continuing operations are as follows.
Income tax provision |  |  |  |  |  |
|  | Years Ended December 31,
(In thousands) |  | 2022 |  | 2021 |  | 2020
Current provision (benefit) |  | $ | 2,920 |  |  | $ | 2,368 |  |  | $ | (16,264) |
Deferred provision |  | 206,925 |  |  | 161,793 |  |  | 102,079 |
Total income tax provision |  | $ | 209,845 |  |  | $ | 164,161 |  |  | $ | 85,815 |
Reconciliation of Taxes Computed at Statutory Rate to Provision for Income Taxes | The reconciliation of taxes computed at the statutory tax rate of 21% in 2022, 2021 and 2020 to the provision for income taxes is as follows.
Reconciliation of provision for income taxes |  |  |  |  |  |
|  | Years Ended December 31,
(In thousands) |  | 2022 |  | 2021 |  | 2020
Provision for income taxes computed at the statutory tax rate |  | $ | 200,084 |  |  | $ | 160,615 |  |  | $ | 100,683 |
Change in tax resulting from: |  |  |  |  |  |
State tax provision (benefit), net of federal impact |  | 20,869 |  |  | (1,714) |  |  | (9,062) |
Valuation allowance |  | (13,791) |  |  | 5,700 |  |  | 11,290 |
Uncertain tax positions |  | (1,076) |  |  | 853 |  |  | (14,784) |
Other, net |  | 3,759 |  |  | (1,293) |  |  | (2,312) |
Provision for income taxes |  | $ | 209,845 |  |  | $ | 164,161 |  |  | $ | 85,815 |
Schedule of Components of Deferred Tax Assets and Liabilities | The significant components of our net deferred tax assets and liabilities from continuing operations are summarized as follows.
Deferred tax assets and liabilities |  |  |  |
|  | December 31,
(In thousands) |  | 2022 |  | 2021
Deferred tax assets |  |  |  |
Net unrealized loss on investments |  | $ | 121,497 |  |  | $ | — |
State income taxes, net of federal impact |  | 58,031 |  |  | 77,637 |
Goodwill and intangibles |  | 30,782 |  |  | 29,723 |
Unearned premiums |  | 26,108 |  |  | 23,699 |
Accrued expenses |  | 11,913 |  |  | 16,584 |
Lease liability |  | 10,371 |  |  | 11,240 |
Differences in fair value of financial instruments |  | 5,998 |  |  | — |
Loss reserves |  | 3,102 |  |  | 6,286 |
Other |  | 32,328 |  |  | 27,932 |
Total deferred tax assets |  | $ | 300,130 |  |  | $ | 193,101 |
Deferred tax liabilities |  |  |  |
Contingency reserve |  | $ | 587,722 |  |  | $ | 368,000 |
Depreciation |  | 10,031 |  |  | 12,775 |
Net unrealized gain on investments |  | — |  |  | 31,876 |
Differences in fair value of financial instruments |  | — |  |  | 7,763 |
Other |  | 23,823 |  |  | 26,768 |
Total deferred tax liabilities |  | 621,576 |  |  | 447,182 |
Less: Valuation allowance |  | 69,637 |  |  | 83,428 |
Net deferred tax asset (liability) |  | $ | (391,083) |  |  | $ | (337,509) |
Reconciliation of Unrecognized Tax Benefits | A reconciliation of the beginning and ending gross unrecognized tax benefits is as follows.
Reconciliation of gross unrecognized tax benefits |  |  |  |
|  | Years Ended December 31,
(In thousands) |  | 2022 |  | 2021
Balance at beginning of period |  | $ | 19,888 |  |  | $ | 20,249 |
Tax positions related to the current year: |  |  |  |
Increases |  | 1,791 |  |  | 267 |
Decreases |  | — |  |  | (858) |
Tax positions related to prior years: |  |  |  |
Increases |  | 17,666 |  |  | 230 |
Decreases |  | (17) |  |  | — |
Lapses of applicable statute of limitation |  | (18,518) |  |  | — |
Balance at end of period |  | $ | 20,810 |  |  | $ | 19,888 |

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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 https://asc.fasb.org/extlink&oid=121826272&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 https://asc.fasb.org/extlink&oid=121826272&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 https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319 + Details
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