Line of credit including term loan.

No definition available.

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- Definition

Number of agreements for amendment.

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No definition available.

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- Definition

The amount of retained earnings available for dividend distribution as calculated in accordance with loan covenants.

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No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Date the credit facility terminates, in YYYY-MM-DD format.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt - Additional Information (Detail)			9 Months Ended
Debt - Additional Information (Detail)	Aug. 27, 2024 Agreement	Jun. 24, 2022 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Total debt			$ 688,516,000		$ 654,146,000
Term loan principal repaid			$ 48,571,000	$ 28,572,000
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
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 Revolving Credit Facility [Member] \| Multi-Currency Credit Facility with Syndicate of Banks [Member]
Debt Instrument [Line Items]
Borrowing capacity		$ 350,000,000
Delayed Draw Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity			$ 91,250,000
Term loan principal repaid			8,750,000
Delayed Draw Term Loan Credit Facility [Member] \| Multi-Currency Credit Facility with Syndicate of Banks [Member]
Debt Instrument [Line Items]
Borrowing capacity		$ 100,000,000
Multi Currency Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Outstanding borrowings, including term loan			370,000,000
Letters of Credit Outstanding			11,375,000
Unused Revolving credit			59,875,000
Unrestricted retained earnings			257,153,000		$ 234,399,000
Unsecured Private Placement Notes [Member]
Debt Instrument [Line Items]
Total debt			$ 311,616,000
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			3.95%
Maturity Dates			12 years
Note Purchase Agreements [Member]
Debt Instrument [Line Items]
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