Stock Repurchase Program (Detail) - Common Stock - Stock Repurchase Program - USD ($) shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Mar. 30, 2021
Equity, Class of Treasury Stock [Line Items]
Authorized amount of repurchase, up to							$ 1,000
Automatic increase per calendar month							$ 1,000
Federal corporate excise tax repurchase percentage	1.00%
Share repurchase value minimum threshold exempt from tax	$ 1,000
Stock repurchased (in shares)		374	364	1,764	7,664
Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Excise tax liabilities incurred during the period and capitalized		$ 8		$ 38
Restricted Cash
Equity, Class of Treasury Stock [Line Items]
Total cash		$ 329		$ 329		$ 475