Employee Benefits - Multiemployer Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
International Union of Operating Engineers - Employers Construction Industry Retirement Plan - Local 302 and 612 Trust Funds
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 1,340	$ 1,289	$ 1,297
Washington Laborers
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 137	$ 106	244
Carpenters Retirement Plan of Western Washington
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 1,906	$ 1,717	1,700
Cement Masons & Plasterers Trust Funds
Multiemployer Plans [Line Items]
Contributions			32
Western Conference of Teamsters Pension Trust Fund
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 46	$ 44	$ 44
Hawaii Operating Engineers Local 3 Trust Funds
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 121
Hawaii Regional Council of Carpenters
Multiemployer Plans [Line Items]
Certified Zone Status	Green	Green
Contributions	$ 128

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