Retirement Benefit Plans - Summary of Fair Value of Plan Assets by Level (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	$ 209,339	$ 217,167
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	22,243	22,163
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	187,096	195,004
Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Common collective trusts
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	187,096	195,004
Common collective trusts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Common collective trusts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	187,096	195,004
Common collective trusts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Registered investment companies
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	20,939	20,965
Registered investment companies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	20,939	20,965
Registered investment companies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Registered investment companies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	1,304	1,198
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	1,304	1,198
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	$ 0	$ 0