Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Insurance reserves	$ 1,338,174	$ 2,391,739
Deferred Tax Assets, Investments	343,012	0
Net unrealized loss on securities	481,763	0
Other	2,800	2,894
Deferred tax assets	2,165,749	2,394,633
Deferred tax liabilities:
Deferred policy acquisition cost	888,944	1,003,301
Deferred sales inducements	57,870	78,676
Net unrealized gain on securities	0	114,705
Investments	0	155,891
Deferred tax liabilities	946,814	1,352,573
Net deferred tax asset	$ 1,218,935	$ 1,042,060

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The amount as of the balance sheet date of the estimated future tax effects attributable to sales inducement costs being expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, which will reverse in future periods when amortization of such capitalized costs cannot be deducted for tax purposes.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments).

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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