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Debt And Interest Expense (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The following table summarizes information related to our Senior notes:

						Issuance Date			Maturity Date			Interest Rate			Principal
															As of December 31,
															2023						2022
															(in millions except interest rates)
Senior notes due 2025						March 27, 2015			April 1, 2025			5.25		%	$	500.0					$	500.0
Senior notes due 2027						July 5, 2017			July 15, 2027			4.75		%	550.0						550.0
Senior notes due 2031						June 8, 2021			June 15, 2031			2.70		%	750.0						750.0
Principal amount of senior notes															1,800.0						1,800.0
Less: unamortized issuance costs															(9.8)						(12.1)
Total Senior notes															$	1,790.2					$	1,787.9

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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