v3.21.2

FINANCIAL INSTRUMENTS - Assets and liabilities carried at fair value measured on a recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	$ 26,220	$ 26,850
Corporate bonds	649,536	611,184
Marketable securities	254	253
Derivative instruments - Assets	1,890	353
Total assets measured at fair value	677,900	638,640
Derivative instruments - Liability	847	1,505
Total liabilities measured at fair value	847	1,505
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	26,220	26,850
Marketable securities	254	253
Total assets measured at fair value	26,474	27,103
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds	649,536	611,184
Derivative instruments - Assets	1,890	353
Total assets measured at fair value	651,426	611,537
Derivative instruments - Liability	847	1,505
Total liabilities measured at fair value	847	1,505
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	254	253
Derivative instruments - Assets	1,890	353
Derivative instruments - Liability	$ 847	$ 1,505

X

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Corporate bonds consists of fixed maturity debt securities.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the information pertaining to the fair value of the mutual funds.

+ References

No definition available.

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X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Publisher FASB
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-SubTopic 10
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-Paragraph 2
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X

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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X

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

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Period Type:	instant

X

- Definition

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.

+ References

No definition available.

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- Definition

Fair value of financial and nonfinancial obligations.

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X

- Definition

Amount of investment in marketable security.

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