Financial Instruments (Narrative) (Details)		12 Months Ended
	Aug. 16, 2023 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Nov. 30, 2024 USD ($) derivative
Debt Instrument [Line Items]
Principal payments due on long-term debt in five years		$ 455,700,000
Cash payments of interest		24,600,000	$ 14,700,000	$ 18,700,000
Maximum leverage ratio allowed	3.75
Maximum leverage ratio allowed, after significant acquisition	4.25
Number of interest rate derivates held | derivative					2
Interest rate swaps
Debt Instrument [Line Items]
Cash collateral pledged		0
Cash collateral received		$ 0
Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate		3.73%	4.09%
Unsecured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 800,000,000
Unsecured Debt | Line of Credit
Debt Instrument [Line Items]
Debt instrument, term	5 years
Basis spread on variable rate		1.625%
Borrowings outstanding		$ 456,000,000
Line of credit facility, remaining borrowing capacity		$ 344,000,000
Interest coverage ratio	3.00	8.30
Maximum leverage ratio allowed		3.50
Debt covenant, maximum annual dividend payout amount		$ 40,000,000
Leverage ratio		1.66
USD borrowings | Line of Credit | Interest rate swaps
Debt Instrument [Line Items]
Derivative, notional amount					$ 125,000,000
Derivative, fixed interest rate					3.987%
EUR borrowings | Line of Credit | Interest rate swaps
Debt Instrument [Line Items]
Derivative, notional amount					$ 45,000,000
Derivative, fixed interest rate					2.277%