Amount of repayments of foreign subsidiaries short-term debt due in next year.

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Amount of repayments of long-term debt due in next year.

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No definition available.

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Line of credit facility maximum maturity period.

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Line of credit facility minimum maturity period.

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Long term debt prepaid outstanding principal.

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No definition available.

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

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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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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Amount of the required periodic payments applied to interest.

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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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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

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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 unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt - Additional Information (Detail) - USD ($)		12 Months Ended
Debt - Additional Information (Detail) - USD ($)	Jun. 12, 2019	Dec. 31, 2019	Dec. 31, 2018	Jan. 30, 2018
Debt Instrument [Line Items]
Total debt		$ 222,103,000	$ 276,080,000
Line of credit facility, Minimum maturity period		1 month
Line of credit facility, Maximum maturity period		6 months
Unamortized debt issuance cost		$ 754,000	978,000
Debt matures in 2020		23,571,000
Debt matures in 2021		37,858,000
Debt matures in 2022		37,858,000
Debt matures in 2023		37,857,000
Debt matures in 2024		28,572,000
Debt matures after 2024		57,141,000
Amount of repayments of long-term debt due in next year		23,571,000
Amount of repayments of foreign subsidiaries short-term debt due in next year		$ 0
Minimum [Member]
Debt Instrument [Line Items]
Commitment fee percentage		0.15%
Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Spread rate		1.25%
Minimum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Spread rate		0.25%
Maximum [Member]
Debt Instrument [Line Items]
Commitment fee percentage		0.325%
Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Spread rate		1.875%
Maximum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Spread rate		0.875%
Unsecured Private Placement Notes [Member]
Debt Instrument [Line Items]
Total debt		$ 222,857,000
Maturity Dates		12 years
Debt instrument maturity dates description		The notes had original maturities of 12 years with mandatory amortization of principal beginning six years after issuance.
Unsecured Private Placement Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage		3.86%
Unsecured Private Placement Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage		4.86%
Multi Currency Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Revolving credit agreement		$ 350,000,000		$ 350,000,000
Credit agreement secured date		Jan. 30, 2023
Letters of Credit Outstanding		$ 4,929,000
Debt Outstanding		0
Unused Revolving credit		345,071,000
Unrestricted retained earnings		$ 283,956,000	$ 190,442,000
Series 2010-A Senior Notes due June 1, 2022 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate percentage	5.88%
Credit agreement secured date		Jun. 01, 2022
Prepaid outstanding principal	$ 17,100,000
Make-whole amount	1,173,000
Unamortized debt issuance cost	$ 74,000
Debt of foreign subsidiaries Unsecured bank debt and Term Loan, foreign currency [Member]
Debt Instrument [Line Items]
Total debt		$ 0