Employee Benefit Plans (Plan Assets at Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Equity partnerships
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List]	Fair Value Measured at Net Asset Value Per Share	Fair Value Measured at Net Asset Value Per Share
Hedge fund investments
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List]	Fair Value Measured at Net Asset Value Per Share	Fair Value Measured at Net Asset Value Per Share
Employee Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	$ 56,157	$ 73,375	$ 71,940
Employee Pension Plans | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	41,685	57,499
Employee Pension Plans | Level 1 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	41,685	57,499
Employee Pension Plans | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	2,872	3,057
Employee Pension Plans | Level 2 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	2,872	3,057
Employee Pension Plans | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Level 3 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Fair Value, Inputs, Level 1, 2 and 3 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	44,557	60,556
Employee Pension Plans | Fair Value Measured at Net Asset Value Per Share | Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	11,600	12,819
Employee Pension Plans | Cash and cash equivalents | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	2,757	2,533
Employee Pension Plans | Cash and cash equivalents | Level 1 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	2,757	2,533
Employee Pension Plans | Cash and cash equivalents | Level 2 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Cash and cash equivalents | Level 3 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Fixed income funds | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	4,436	3,057
Employee Pension Plans | Fixed income funds | Level 1 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	1,564	0
Employee Pension Plans | Fixed income funds | Level 2 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	2,872	3,057
Employee Pension Plans | Fixed income funds | Level 3 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Mutual funds | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	37,364	54,966
Employee Pension Plans | Mutual funds | Level 1 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	37,364	54,966
Employee Pension Plans | Mutual funds | Level 2 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Mutual funds | Level 3 | Non-Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	0	0
Employee Pension Plans | Equity partnerships | Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	4,078	4,259
Employee Pension Plans | Hedge fund investments | Closely Held Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plans' assets	$ 7,522	$ 8,560