Debt - Debt (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total debt	$ 659,283	$ 625,439
Less current maturities	328,484	292,807
Long-term debt	330,799	332,632
Unsecured private placement 3.95% note [Member]
Debt Instrument [Line Items]
Total debt	$ 42,770	$ 42,759
Debt instrument interest rate percentage	3.95%	3.95%
Unsecured private placement 3.95% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025
Unsecured private placement 3.95% note [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity Dates	2027	2027
Unsecured private placement 3.86% note [Member]
Debt Instrument [Line Items]
Total debt	$ 14,284	$ 14,270
Debt instrument interest rate percentage	3.86%	3.86%
Unsecured private placement 3.86% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025
Unsecured private placement 2.30% note [Member]
Debt Instrument [Line Items]
Total debt	$ 39,928	$ 39,923
Debt instrument interest rate percentage	2.30%	2.30%
Unsecured private placement 2.30% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025
Unsecured private placement 2.30% note [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity Dates	2028	2028
Unsecured private placement 2.37% note [Member]
Debt Instrument [Line Items]
Total debt	$ 39,923	$ 39,917
Debt instrument interest rate percentage	2.37%	2.37%
Unsecured private placement 2.37% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025
Unsecured private placement 2.37% note [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity Dates	2028	2028
Unsecured private placement 2.73% note [Member]
Debt Instrument [Line Items]
Total debt	$ 99,934	$ 99,930
Debt instrument interest rate percentage	2.73%	2.73%
Unsecured private placement 2.73% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025
Unsecured private placement 2.73% note [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity Dates	2031	2031
Unsecured private placement 2.83% note [Member]
Debt Instrument [Line Items]
Total debt	$ 74,942	$ 74,940
Debt instrument interest rate percentage	2.83%	2.83%
Unsecured private placement 2.83% note [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2026	2026
Unsecured private placement 2.83% note [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Maturity Dates	2032	2032
Debt of foreign subsidiaries Unsecured bank debt, foreign currency [Member]
Debt Instrument [Line Items]
Total debt	$ 1,002	$ 0
Maturity Dates	2025	2025
Revolving credit facility and term loan borrowing [Member]
Debt Instrument [Line Items]
Total debt	$ 346,500	$ 313,700
Revolving credit facility and term loan borrowing [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Maturity Dates	2025	2025

Debt instruments maturity year.

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