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LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The table below presents the components of outstanding debt (in millions):

																		December 31,
																		2023						2022
2.800% Senior Notes due July 15, 2030																		$	1,000.0					$	1,000.0
2020 Credit Agreement, due July 1, 2025																		—						—
Total face amount of long-term debt																		1,000.0						1,000.0
Senior Notes unamortized discount and issuance costs																		(9.5)						(10.8)
Long-term debt, net																		$	990.5					$	989.2

Schedule of Interest Expense

For the years ended December 31, 2023, 2022 and 2021, the Company recognized interest expense as follows (in millions):

						Year Ended December 31,
						2023						2022						2021
Interest on outstanding borrowings						$	28.0					$	28.0					$	28.0
Amortization of Senior Notes discount and issuance costs						2.4						2.3						2.3
Interest capitalized for construction in process						(1.6)						—						—
Commitment fees and other						2.6						2.0						2.0
Total interest expense						$	31.4					$	32.3					$	32.3

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Schedule of Interest Expense

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Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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