Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 569,153
Net other comprehensive income (loss)	4,215	$ (8,464)	$ 18,157
Ending balance	548,980	569,153
AOCI Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(19,387)	(10,923)	(29,080)
Gains (losses) arising during period	6,478	5,098	14,579
Amounts reclassified from accumulated other comprehensive loss	(1,345)	(12,276)	3,578
Income tax expense	(918)	(1,286)
Net other comprehensive income (loss)	4,215	(8,464)	18,157
Ending balance	(15,172)	(19,387)	(10,923)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(15,187)	(18,021)	(16,419)
Gains (losses) arising during period	4,538	4,428	(1,428)
Amounts reclassified from accumulated other comprehensive loss	(553)	(308)	(174)
Income tax expense	(918)	(1,286)
Net other comprehensive income (loss)	3,067	2,834	(1,602)
Ending balance	(12,120)	(15,187)	(18,021)
Accumulated Other-than-Temporary Impairment of Investment [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,878)	(3,087)	(3,298)
Amounts reclassified from accumulated other comprehensive loss	211	209	211
Net other comprehensive income (loss)	211	209	211
Ending balance	(2,667)	(2,878)	(3,087)
Interest Rate Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,322)	10,185	(9,363)
Gains (losses) arising during period	1,940	670	16,007
Amounts reclassified from accumulated other comprehensive loss	(1,003)	(12,177)	3,541
Net other comprehensive income (loss)	937	(11,507)	19,548
Ending balance	$ (385)	$ (1,322)	$ 10,185