Employee Benefit Plans - Pension Plan Assets Measured at Fair Value (Details) - Pension Plan - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets measured at fair values
Fair value of assets	$ 20,105	$ 18,336	$ 23,125
Cash
Assets measured at fair values
Fair value of assets	622	1,452
Equities
Assets measured at fair values
Fair value of assets	13,742	11,659
Mutual funds
Assets measured at fair values
Fair value of assets	5,741	5,225
Level 1
Assets measured at fair values
Fair value of assets	20,105	18,336
Level 1 | Cash
Assets measured at fair values
Fair value of assets	622	1,452
Level 1 | Equities
Assets measured at fair values
Fair value of assets	13,742	11,659
Level 1 | Mutual funds
Assets measured at fair values
Fair value of assets	$ 5,741	$ 5,225