Debt - Additional Information (Detail)				12 Months Ended
	May 21, 2025 USD ($)	Aug. 27, 2024 Agreement	Jun. 24, 2022 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Total debt				$ 626,710,000	$ 625,439,000
Line of credit facility, Minimum maturity period				1 month
Line of credit facility, maturity period				3 months
Line of credit facility, Maximum maturity period				6 months
Debt matures in 2025				$ 285,735,000
Debt matures in 2026				135,535,000
Debt matures in 2027				45,000,000
Debt matures in 2028				40,000,000
Debt matures in 2029				40,000,000
Debt matures after 2029				80,715,000
Amount of repayments of long-term debt due in current year				$ 66,786,000
Minimum [Member]
Debt Instrument [Line Items]
Commitment fee percentage				0.125%
Minimum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Spread rate				1.125%
Minimum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Spread rate				0.125%
Maximum [Member]
Debt Instrument [Line Items]
Commitment fee percentage				0.25%
Maximum [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Spread rate				1.75%
Maximum [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Spread rate				0.75%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date				Jun. 24, 2027
Delayed Draw Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity				$ 83,750,000
Term loan principal repaid				16,250,000
Unsecured Private Placement Notes [Member]
Debt Instrument [Line Items]
Total debt				$ 324,010,000
Debt instrument maturity dates description				The notes had original maturities of seven to 12 years with mandatory principal payments beginning four, five and six years after issuance.
Unsecured Private Placement Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage				2.30%
Maturity Dates				7 years
Unsecured Private Placement Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage				6.17%
Maturity Dates				12 years
Multi-Currency Credit Facility with Syndicate of Banks [Member]
Debt Instrument [Line Items]
Borrowing capacity			$ 450,000,000
Committed multi-currency credit facility, maturity date			Jun. 24, 2027
Multi-Currency Credit Facility with Syndicate of Banks [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity			$ 350,000,000
Multi-Currency Credit Facility with Syndicate of Banks [Member] | Delayed Draw Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity			100,000,000
Multi Currency Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowing capacity			$ 350,000,000
Letters of Credit Outstanding				$ 4,102,000
Unused Revolving credit				126,948,000
Outstanding borrowings, including term loan				302,700,000
Unrestricted retained earnings				$ 263,923,000	$ 251,953,000
Note Purchase Agreements [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage	6.17%
Debt instrument, maturity date				May 21, 2033
Debt instrument, payment terms				The Notes will bear interest at a fixed rate of 6.17 percent with interest to be paid semi-annually. Principal amortization for the Notes is contractually scheduled with equal annual payments beginning on May 21, 2029 and on each May 21 thereafter to and including May 21, 2032, with the final outstanding principal balance due at maturity on May 21, 2033.
Number of agreements for amendment | Agreement		2
CIC Credit Agreement [Member]
Debt Instrument [Line Items]
Borrowing capacity				$ 8,700,000
CIC Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity				8,694,000
Debt of foreign subsidiaries Unsecured bank debt and Term Loan, foreign currency [Member]
Debt Instrument [Line Items]
Total debt				$ 0
6.17% Senior Notes, Series 2025-A, Due May 21, 2033 [Member]
Debt Instrument [Line Items]
Aggregate principal amount in debt issued and sold	$ 37,500,000
Debt instrument interest rate percentage	6.17%
Debt instrument, maturity date	May 21, 2033
6.17% Senior Notes, Series 2025-B, due May 21, 2033 [Member]
Debt Instrument [Line Items]
Aggregate principal amount in debt issued and sold	$ 37,500,000
Debt instrument interest rate percentage	6.17%
Debt instrument, maturity date	May 21, 2033