Revolving Credit Facility and Long-Term Debt - Additional Information (Detail) - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Line of credit facility commitment fee description					The Agreement also provides for an unused commitment fee of 0.35% per year on the average daily unused amount of the revolving credit line, as well as a fee of 1.75% of the face amount of each letter of credit reserved under the line of credit.
Balance in Chubb trust accounts	$ 210,900,000				$ 210,900,000	$ 188,200,000
Agreement [Member]
Line of Credit Facility [Line Items]
Outstanding balance on term loan and revolving credit facility	0				0	$ 0
Dividends or distributions paid					0
Maximum amount to redeem retire repurchase or acquire stock upon agreement					15,000,000
Minimum [Member]
Line of Credit Facility [Line Items]
Tangible net worth amount	50,000,000	$ 50,000,000	$ 50,000,000	$ 50,000,000
Minimum [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
EBITDA	10,000,000				10,000,000
Maximum [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
Prohibition on incurring additional indebtedness without the prior approval of the Bank in purchase money financing					1,000,000
Revolving Credit Facility [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity	50,000,000.0				$ 50,000,000.0
Unused commitment fee on unused amount during period					0.35%
Revolving Credit Facility [Member] | SOFR [Member]
Line of Credit Facility [Line Items]
Term loan from bank interest rate description					the daily Simple Secured Overnight Financing Rate ("SOFR") plus 1.75% or (b) one-month Term SOFR plus 1.75%.
Revolving Credit Facility [Member] | SOFR [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
SOFR plus rate					1.75%
Revolving Credit Facility [Member] | One-Month Term SOFR [Member]
Line of Credit Facility [Line Items]
SOFR plus rate					1.75%
Standby Letters of Credit [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity	$ 25,000,000.0				$ 25,000,000.0
Line of Credit [Member] | Agreement [Member]
Line of Credit Facility [Line Items]
Unused commitment fee on unused amount					1.75%