Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 135,536	$ 29,174	$ 32,461
Pension Adjustments:
Amortization of actuarial losses and prior service costs, net of tax of $309, $236, and $209 for 2021, 2020, and 2019, respectively	976	757	676
Actuarial gains (losses) arising during the period, net of tax benefit of $902, $701, and $502 for 2021, 2020, and 2019, respectively	2,859	(2,251)	(1,682)
Change in net unrealized (losses) gains on cash flow hedges, net of tax of $391, $57, and $29 for 2021, 2020, and 2019, respectively	(1,268)	162	95
Other Comprehensive Income (Loss), Net of Tax	2,567	(1,332)	(911)
Comprehensive Income, Net of Tax	$ 138,103	$ 27,842	$ 31,550