Lease Accounting (Cash Flow Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 11,821,000	$ 9,349,000	$ 8,991,000
Leased assets obtained in exchange for new operating lease liabilities	2,222,000	6,883,000	5,701,000
Marine transportation
Lessor, Lease, Description [Line Items]
Lease revenue	$ 29,200,000	$ 28,200,000	$ 23,600,000