RETIREMENT BENEFITS - Schedule of Fair Value of Plan Assets by Asset Category (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 780,505	$ 769,630
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	686,724	669,645
Equity securities—US
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	43,757	51,603
Equity securities—International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,504	24,127
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 23,520	$ 24,255