Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income		$ 44,424	$ 47,770
Other comprehensive income (loss), net of tax
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax		16,394	(3,008)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax		3,456	(1,488)
Net change in other comprehensive income for defined benefit postretirement plans	[1]	(45)	(15)
Total other comprehensive income (loss)		19,805	(4,511)
Total comprehensive income		$ 64,229	$ 43,259

[1] The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 12 - Employee Benefit Plans within the Notes to the Consolidated Financial Statements included in Item 8 of the Company’s 2024 Form 10-K.