Fair Value Measurements (Details) - EBP 001 - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	$ 11,301,843	$ 10,526,453
Common Stock
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	775,757	885,305
Fixed maturities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	307,268	278,518
Equity securities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	10,218,818	9,362,630
(Level 1)
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	775,757	885,305
(Level 1) \| Common Stock
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	775,757	885,305
(Level 1) \| Fixed maturities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	0	0
(Level 1) \| Equity securities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	0	0
(Level 2)
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	10,526,086	9,641,148
(Level 2) \| Common Stock
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	0	0
(Level 2) \| Fixed maturities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	307,268	278,518
(Level 2) \| Equity securities
EBP, Investment, Fair Value and NAV [Line Items]
Investments, at fair value (See Note 4)	$ 10,218,818	$ 9,362,630

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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