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Fair Value Disclosure (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 17,769		$ 17,769		$ 18,663
(Loss) gain on equity securities	349	$ (264)	(521)	$ 777
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fair Value Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	17,769		17,769		18,663
(Loss) gain on equity securities	(400)	(500)	(1,000)	(200)
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fair Value Measurements, Recurring \| Bellaire
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
(Loss) gain on equity securities	800	$ 300	500	$ 1,000
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Reported Value Measurement \| Fair Value Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities cost						$ 2,000
Equity securities	5,300		5,300		6,300
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Reported Value Measurement \| Fair Value Measurements, Recurring \| Bellaire
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities cost						$ 5,000
Equity securities	$ 12,500		$ 12,500		$ 12,300