Fair Value Measurements (Quantitative Information Level 3 Measurements ) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 637,300	$ 635,400	$ 568,000
Level 3 | Convertible preferred securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	18,190	14,190	15,625	$ 15,625
Implied based on market prices | Level 3 | Convertible preferred securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	$ 18,190	$ 14,190	$ 15,625