Share-Based Compensation - Restricted Stock (Details) - Restricted Stock $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) $ / shares shares
Restricted Stock Activity
Outstanding at the beginning of the period (in shares) | shares	50,506
Vested (in shares) | shares	(20,849)
Forfeited (in shares) | shares	(2,353)
Outstanding at the end of the period (in shares) | shares	27,304
Weighted-Average Grant-Date Fair Value
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 89.12
Vested (in dollars per share) | $ / shares	90.00
Forfeited (in dollars per share) | $ / shares	90.00
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 88.37
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted | $	$ 1.2
Weighted-average period over which unrecognized compensation cost is expected to be recognized	10 months 2 days
Total fair value of shares vested during the period | $	$ 1.6
Minimum
Additional disclosures
Vesting period	2 years
Maximum
Additional disclosures
Vesting period	4 years