Employee Benefits - Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	$ 241,182	$ 263,906
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	147,336	166,063
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	53,981
Foreign Bonds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	15,960	0
Federal Agency
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,185	0
Private Placement
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	3,319	0
Asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	732	0
Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	546	785
Liquid assets separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,872	4,475
Short-term income separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,169	0
U.S. property separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,688	25,407
LargeCap S&P 500 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	31,968
MidCap S&P 400 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,227
SmallCap S&P 600 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,163
International equity index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,017
United Life annuity
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	13,195
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	241,182	263,893	$ 229,701
Pension Benefits | U.S. property separate account fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,688	25,407	$ 28,468
Recurring | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	241,182	250,698
Recurring | Pension Benefits | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	53,090	54,753
Recurring | Pension Benefits | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	181,404	170,538
Recurring | Pension Benefits | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,688	25,407
Recurring | Pension Benefits | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	147,336	166,063
Recurring | Pension Benefits | Corporate bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | Corporate bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	147,336	166,063
Recurring | Pension Benefits | Corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value		53,981
Recurring | Pension Benefits | Equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value		53,981
Recurring | Pension Benefits | Equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value		0
Recurring | Pension Benefits | Equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value		0
Recurring | Pension Benefits | Foreign Bonds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	15,960
Recurring | Pension Benefits | Foreign Bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Foreign Bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	15,960
Recurring | Pension Benefits | Foreign Bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Federal Agency
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,185
Recurring | Pension Benefits | Federal Agency | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Federal Agency | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,185
Recurring | Pension Benefits | Federal Agency | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Private Placement
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	3,319
Recurring | Pension Benefits | Private Placement | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Private Placement | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	3,319
Recurring | Pension Benefits | Private Placement | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	732
Recurring | Pension Benefits | Asset-backed securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Asset-backed securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	732
Recurring | Pension Benefits | Asset-backed securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	546	772
Recurring | Pension Benefits | Money Market Funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	546	772
Recurring | Pension Benefits | Money Market Funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | Money Market Funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | Liquid assets separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,872	4,475
Recurring | Pension Benefits | Liquid assets separate account fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Liquid assets separate account fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,872	4,475
Recurring | Pension Benefits | Liquid assets separate account fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | Short-term income separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,169
Recurring | Pension Benefits | Short-term income separate account fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,169
Recurring | Pension Benefits | Short-term income separate account fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | Short-term income separate account fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | U.S. property separate account fund
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,688	25,407
Recurring | Pension Benefits | U.S. property separate account fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | U.S. property separate account fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Recurring | Pension Benefits | U.S. property separate account fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,688	$ 25,407
Recurring | Pension Benefits | LargeCap S&P 500 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	31,968
Recurring | Pension Benefits | LargeCap S&P 500 index | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	31,968
Recurring | Pension Benefits | LargeCap S&P 500 index | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | LargeCap S&P 500 index | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | MidCap S&P 400 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,227
Recurring | Pension Benefits | MidCap S&P 400 index | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	6,227
Recurring | Pension Benefits | MidCap S&P 400 index | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | MidCap S&P 400 index | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | SmallCap S&P 600 index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,163
Recurring | Pension Benefits | SmallCap S&P 600 index | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,163
Recurring | Pension Benefits | SmallCap S&P 600 index | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | SmallCap S&P 600 index | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | International equity index
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,017
Recurring | Pension Benefits | International equity index | Level 1
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,017
Recurring | Pension Benefits | International equity index | Level 2
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Recurring | Pension Benefits | International equity index | Level 3
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	$ 0