CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 48,176	$ 71,681	$ 76,870
Other comprehensive income (loss), net of tax:
Net change in fair value of available for sale debt securities	14,442	(124,238)	(16,676)
Net change in fair value of cash flow hedges	7,026	(18,632)	(2,566)
Net change in defined benefit plan obligations	(4,821)	5,051	6,652
Total other comprehensive income (loss), net of tax	16,647	(137,819)	(12,590)
Total comprehensive income (loss)	$ 64,823	$ (66,138)	$ 64,280