CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net Income	$ 86,995	$ 81,969	$ 161,333	$ 144,450
Other Comprehensive Loss:
Unrealized Gain (Loss) on Available-for-Sale Securities, net of tax benefit (expense) of $71, $16, $74 and $(5)	(269)	(61)	(282)	19
Pension and Other Postretirement Benefits, net of tax benefit of $10, $9, $36 and $19	(29)	(27)	(103)	(53)
Total Other Comprehensive Income (Loss)	(298)	(88)	(385)	(34)
Total Comprehensive Income	$ 86,697	$ 81,881	$ 160,948	$ 144,416