Pension and Other Postretirement Benefits - Fair Value Hierarchy - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 196,354	$ 189,535	$ 294,566
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	124,311	68,865	118,053
Real estate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5,918	8,902	11,547
Alternative Investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0	6,979
Insurance contract | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118,393	59,963	99,527
U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,967	59,591	77,680
Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	135,387	129,944	$ 216,886
Fair Value, Recurring
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	196,354	189,535
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	194,281	187,693
Fair Value, Recurring | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,582	4,923
Fair Value, Recurring | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	68,388	113,905
Fair Value, Recurring | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	124,311	68,865
Fair Value, Recurring | Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,073	1,842
Fair Value, Recurring | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,967	59,591
Fair Value, Recurring | U.S. | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,967	59,591
Fair Value, Recurring | U.S. | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | U.S. | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	56,820	54,596
Fair Value, Recurring | U.S. | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,147	4,995
Fair Value, Recurring | U.S. | Pooled separate accounts | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	56,820	54,596
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	56,820	54,596
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | U.S. | Real estate | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,147	4,995
Fair Value, Recurring | U.S. | Real estate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | U.S. | Real estate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | U.S. | Real estate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,147	4,995
Fair Value, Recurring | Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	135,387	129,944
Fair Value, Recurring | Foreign | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	133,314	128,102
Fair Value, Recurring | Foreign | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,582	4,923
Fair Value, Recurring | Foreign | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,568	59,309
Fair Value, Recurring | Foreign | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	120,164	63,870
Fair Value, Recurring | Foreign | Real estate | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,771	3,907
Fair Value, Recurring | Foreign | Real estate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Real estate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Real estate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,771	3,907
Fair Value, Recurring | Foreign | Cash and cash equivalents | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,582	4,923
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,582	4,923
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Insurance contract | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118,393	59,963
Fair Value, Recurring | Foreign | Insurance contract | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Insurance contract | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Insurance contract | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	118,393	59,963
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,892	5,211
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,892	5,211
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9,676	54,098
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9,676	54,098
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Recurring | Foreign | Commingled funds measured at NAV | Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2,073	$ 1,842