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LONG-TERM DEBT - Senior Notes (Details) - Senior Notes	Jan. 31, 2021 USD ($)	Feb. 11, 2019 USD ($)	Jul. 15, 2011 EUR (€)
Senior Notes due 2027
Debt Instrument [Line Items]
Debt issued		$ 500,000,000.0
Interest of senior notes		6.50%
Debt issuance costs	$ 2,200,000
Senior Notes due 2021
Debt Instrument [Line Items]
Debt issued | €			€ 200,000,000.0
Interest of senior notes			7.375%

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Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB
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-Topic 835
-SubTopic 30
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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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