Stock-Based Compensation, Restricted Shares (Details) - Restricted Shares - 2024 Directors Restricted Stock Plan - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2025	Dec. 31, 2024	May 16, 2024
Stock-Based Compensation
Total shares available for granting under plan	461,640		461,640		500,000
Restricted share activity
Restricted shares outstanding at the beginning of the period (in shares)	21,840	21,840	21,840
Restricted shares granted (in shares)	16,520	0
Shares vested and issued (in shares)	(21,840)
Restricted shares outstanding at the end of the period (in shares)	16,520	21,840	16,520	21,840
Fair Value at Grant Date
Fair value at the grant date, restricted shares outstanding at the beginning of the period (in dollars per share)	$ 65.96	$ 65.96	$ 65.96
Fair value of restricted shares vested and issued (in dollars per share)	65.96
Fair value of restricted shares granted (in dollars per share)	86.88	0
Fair value at the grant date, restricted shares outstanding at the end of the period (in dollars per share)	$ 86.88	$ 65.96	$ 86.88	$ 65.96
Weighted Average Remaining Amortization Term (in years)	10 months 17 days	1 month 13 days		4 months 9 days
Total compensation cost related to non-vested restricted shares not yet recognized (in dollars)	$ 1.3		$ 1.3