Stock-Based Compensation - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units and restricted stock awards, vest, period	1 year
2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost for restricted stock granted | $	$ 0.7
Cost expected to be recognized over a weighted-average period	2 years 4 months 24 days
2007 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units and restricted stock awards, vest, period	5 years
Class A Common Stock [Member] | 2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized | shares	7,500,000