Earnings Per Share - Reconciliation of Weighted Average Shares used for Basic and Diluted Earnings Per Share Calculation (Detail) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Basic weighted average common shares	19,233,241	19,332,391	19,288,996
Add: Other common shares eligible for common dividends:
Restricted stock and RSUs	88,476	76,228	74,813
Diluted weighted average common shares	19,321,717	19,408,619	19,363,809