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Employee Benefit Plans (Narrative) (Detail) - Unfunded Supplemental Benefit Plans $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Contribution for pension obligation	$ 11.2
Cash contribution to plans during the remainder	$ 5.1

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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