Fair Value Disclosure (Fair Value, Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Assets:
Equity securities	$ 18,109	$ 18,663
Fair Value Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Equity securities	18,109	18,663
Total assets accounted for at fair value on a recurring basis	18,109	18,663
Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Equity securities	0	0
Total assets accounted for at fair value on a recurring basis	0	0
Fair Value Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Equity securities	0	0
Total assets accounted for at fair value on a recurring basis	0	0
Fair Value Measurements, Recurring | Estimate of Fair Value Measurement
Assets:
Equity securities	18,109	18,663
Total assets accounted for at fair value on a recurring basis	$ 18,109	$ 18,663