Fair value of all liability derivatives designated as cash flow hedging instruments.

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

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Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net after-tax loss included in accumulated other comprehensive earnings	$ 520	$ 1,483
Cross Currency Swap Contract \| Derivatives in Cash Flow Hedging Relationships
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount hedged			$ 280,000
Net after-tax loss included in accumulated other comprehensive earnings	(800)
Cash flow hedge derivative instrument liability at fair value	3,000
Interest Rate Swap \| Derivatives in Cash Flow Hedging Relationships
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount expected to be recognized in earnings in next twelve months related to cross currency swap contract	$ (500)
Notes payable
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Proceeds from debt			$ 280,000
Interest rate on notes (as a percent)	1.36%		1.36%