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Financial Instruments - Summary of Republic Shares (Detail) - Equity investments [member] - Republic Airways Holdings [Member] $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Growth Rate [Member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
Increase	$ 96.5
Probable Scenario	95.0
Decrease	93.4
Discount rate, measurement input [member]
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [line items]
Increase	97.1
Probable Scenario	95.0
Decrease	$ 92.9

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- Definition

The amount of increase (decrease) in the fair value measurement of assets due to a reasonably possible decrease in an unobservable input.

+ References

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