Contingencies and Commitments (Details)	12 Months Ended
	Dec. 31, 2023 Bargeslip Company Spill
Portland Harbor Superfund Site [Member]
Loss Contingencies [Line Items]
Number of other companies also named as Potentially Responsible Parties ("PRPs") | Company	250
Number of spills | Spill	4
SBA Shipyard Site [Member]
Loss Contingencies [Line Items]
Number of barge slips | Bargeslip	3