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BORROWINGS - Narrative (Details) € in Millions, £ in Millions, kr in Millions			1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 07, 2024 USD ($)	Nov. 23, 2021 USD ($)	Feb. 28, 2019 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2024 SEK (kr)	Mar. 31, 2024 GBP (£)	Mar. 31, 2024 EUR (€)	Feb. 12, 2024 USD ($)	Dec. 31, 2023 SEK (kr)	Dec. 31, 2023 GBP (£)	Dec. 31, 2023 EUR (€)	Apr. 30, 2022 USD ($)	Apr. 01, 2022 USD ($)	Feb. 25, 2022 USD ($)	Nov. 04, 2021 USD ($)	Feb. 25, 2021 USD ($)	Nov. 04, 2020 USD ($)	Sep. 29, 2020 USD ($)	Sep. 24, 2020 USD ($)	Aug. 03, 2020 USD ($)
Debt Instrument [Line Items]
Borrowings under credit facilities				$ 440,352,000	$ 719,914,000
February 2019 Credit Facility | Line of Credit
Debt Instrument [Line Items]
Commitment aggregate amount			$ 800,000,000	$ 1,065,000,000	1,065,000,000									$ 1,065,000,000	$ 965,000,000	$ 875,000,000
Line of credit facility commitment aggregate value			$ 1,200,000,000											$ 1,500,000,000	$ 1,500,000,000
Line of credit, repayment period after maturity				1 year
Debt instrument, basis spread on variable floor rate (as percent)			1.00%
Percentage of unused portion of credit facility, greater than two-third of commitments (as percent)			0.50%
Percentage of unused portion of credit facility, less than two-third of commitments (as percent)			0.375%
Debt issuance costs, financing fees			$ 6,400,000										$ 4,100,000
Effective interest rate				6.903%		6.903%	6.903%	6.903%
February 2019 Credit Facility | Line of Credit | Interest Period Of One Month
Debt Instrument [Line Items]
Debt instrument, credit spread adjustment			0.0010
February 2019 Credit Facility | Line of Credit | Interest Period Of Three Month
Debt Instrument [Line Items]
Debt instrument, credit spread adjustment			0.0015
February 2019 Credit Facility | Line of Credit | Interest Period Of Six Month
Debt Instrument [Line Items]
Debt instrument, credit spread adjustment			0.0025
February 2019 Credit Facility | Fair Value, Inputs, Level 3 | Line of Credit
Debt Instrument [Line Items]
Fair value of long-term debt				$ 440,400,000	719,900,000
February 2019 Credit Facility | Base Rate | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.25%
February 2019 Credit Facility | Base Rate | Line of Credit | External Credit Rating, Investment Grade
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
February 2019 Credit Facility | SOFR | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.25%
February 2019 Credit Facility | SOFR | Line of Credit | External Credit Rating, Investment Grade
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.00%
February 2019 Credit Facility | Applicable Rate | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.00%
February 2019 Credit Facility | Applicable Rate | Line of Credit | External Credit Rating, Non Investment Grade
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.25%
February 2019 Credit Facility | Screen Rate | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.20%
February 2019 Credit Facility | Screen Rate | Line of Credit | External Credit Rating, Non Investment Grade
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.45%
February 2019 Credit Facility | Federal Funds Purchased | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
February 2019 Credit Facility | Overnight Bank Funding Rate | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			0.50%
February 2019 Credit Facility | One-Month Secured Overnight Financing Rate (SOFR) | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Debt instrument, credit spread adjustment			0.0010
Debt Denominated In U.S Dollars | Line of Credit
Debt Instrument [Line Items]
Borrowings under credit facilities				$ 214,000,000	$ 489,500,000
Effective interest rate				7.42%	7.428%	7.42%	7.42%	7.42%		7.428%	7.428%	7.428%
Debt Denominated In U.S Dollars | One-Month Secured Overnight Financing Rate (SOFR) | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				5.32%	5.328%
Debt Denominated In Swedish Kronas | Line of Credit
Debt Instrument [Line Items]
Borrowings under credit facilities				$ 1,200,000	$ 1,300,000	kr 12.8				kr 12.8
Effective interest rate				6.063%	6.063%	6.063%	6.063%	6.063%		6.063%	6.063%	6.063%
Debt Denominated In Swedish Kronas | Stockholm Interbank Offered Rate (STIBOR) | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				4.063%	4.063%
Debt Denominated In British Pounds | Line of Credit
Debt Instrument [Line Items]
Borrowings under credit facilities				$ 84,100,000	$ 84,900,000		£ 66.6				£ 66.6
Effective interest rate				7.221%	7.22%	7.221%	7.221%	7.221%		7.22%	7.22%	7.22%
Debt Denominated In British Pounds | Sterling Overnight Index Average (SONIA) | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				5.189%	5.22%
Debt Denominated In Euro | Line of Credit
Debt Instrument [Line Items]
Borrowings under credit facilities				$ 141,000,000	$ 144,300,000			€ 130.6				€ 130.6
Effective interest rate				5.938%	5.875%	5.938%	5.938%	5.938%		5.875%	5.875%	5.875%
Debt Denominated In Euro | Euro Interbank Offered Rate (EURIBOR) | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate				3.938%	3.875%
August 2025 Notes | Notes
Debt Instrument [Line Items]
Debt instrument, ownership percentage for immediate conversion				66.67%		66.67%	66.67%	66.67%
Aggregate principal amount																			$ 25,000,000	$ 25,000,000	$ 50,000,000
Fixed interest rate				4.66%		4.66%	4.66%	4.66%													4.66%
August 2025 Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 48,500,000	$ 47,800,000
November Notes, Series B Notes | Notes
Debt Instrument [Line Items]
Aggregate principal amount																		$ 62,500,000
Fixed interest rate				4.25%		4.25%	4.25%	4.25%										4.25%
November Notes, Series B Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 59,500,000	59,300,000
November Notes, Series C Notes | Notes
Debt Instrument [Line Items]
Aggregate principal amount																		$ 112,500,000
Fixed interest rate				4.75%		4.75%	4.75%	4.75%										4.75%
November Notes, Series C Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 103,500,000	102,500,000
Series B And Series C Senior Unsecured Notes Due November | Notes
Debt Instrument [Line Items]
Interest rate extended																		0.0075
Investment grade conditions																		0.0150
February Notes, Series D Notes | Notes
Debt Instrument [Line Items]
Aggregate principal amount																	$ 80,000,000
Fixed interest rate				3.41%		3.41%	3.41%	3.41%									3.41%
February Notes, Series D Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 74,900,000	73,400,000
February Notes, Series E Notes | Notes
Debt Instrument [Line Items]
Aggregate principal amount																	$ 70,000,000
Fixed interest rate				4.06%		4.06%	4.06%	4.06%									4.06%
February Notes, Series E Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 62,700,000	61,200,000
Series D And Series E Senior Unsecured Notes Due February | Notes
Debt Instrument [Line Items]
Debt instrument, ownership percentage for immediate conversion				66.67%		66.67%	66.67%	66.67%
Interest rate extended																	0.0075
Investment grade conditions																	0.0150
November 2026 Notes | Notes
Debt Instrument [Line Items]
Debt instrument, ownership percentage for immediate conversion				66.67%		66.67%	66.67%	66.67%
Aggregate principal amount		$ 350,000,000
Fixed interest rate		3.30%		3.30%		3.30%	3.30%	3.30%
Redemption percentage on purchase price (as percent)		100.00%
November 2026 Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt				$ 313,600,000	311,400,000
February 12, 2024 - February 2029 Notes | Interest Rate Swap
Debt Instrument [Line Items]
Notional amount									$ 300,000,000
Company receives									7.00%
Value				$ (3,200,000)
February 12, 2024 - February 2029 Notes | Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 300,000,000
Fixed interest rate	7.00%			7.00%		7.00%	7.00%	7.00%
Proceeds from issuance of debt	$ 292,900,000
Redemption percentage on purchase price (as percent)	100.00%
February 12, 2024 - February 2029 Notes | Fair Value, Inputs, Level 3 | Notes
Debt Instrument [Line Items]
Fair value of long-term debt					$ 297,400,000
February 12, 2024 - February 2029 Notes | SOFR | Interest Rate Swap
Debt Instrument [Line Items]
Derivative, variable interest rate									3.1475%

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

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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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.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

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- Definition

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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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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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The fair value amount of long-term debt 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.

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