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Debt and Credit Facilities - Senior Notes (Details) - USD ($) $ in Millions				3 Months Ended			12 Months Ended
	Nov. 20, 2023	Jan. 31, 2023	Apr. 19, 2022	Dec. 31, 2023	Mar. 31, 2023	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Loss on debt extinguishment							$ 13.2	$ 11.2	$ 18.6
Senior Notes due February 2031
Debt Instrument [Line Items]
Debt interest rate				7.25%			7.25%
Senior Notes due December 2024
Debt Instrument [Line Items]
Debt interest rate				5.125%			5.125%
Senior Notes due February 2028
Debt Instrument [Line Items]
Debt interest rate				6.125%			6.125%
Senior Notes due September 2023
Debt Instrument [Line Items]
Debt interest rate		4.50%		4.50%			4.50%
Senior Notes due April 2029
Debt Instrument [Line Items]
Debt interest rate				5.00%			5.00%
Senior Notes \| Senior Notes due February 2031
Debt Instrument [Line Items]
Debt principal amount	$ 425.0
Debt interest rate	7.25%
Debt issuance costs capitalized	$ 4.2
Redemption price, percentage	100.00%
Redemption of notes, percentage	40.00%
Senior Notes \| Senior Notes due December 2024
Debt Instrument [Line Items]
Debt interest rate	5.125%
Repurchase price	$ 433.7
Repurchased notes	425.0
Debt premium	7.5
Accrued interest	$ 1.2
Loss on debt extinguishment				$ (8.3)
Accelerated amortization non-lender fees				$ 0.8
Senior Notes \| Senior Notes due February 2028
Debt Instrument [Line Items]
Debt principal amount		$ 775.0
Debt interest rate		6.125%
Debt issuance costs capitalized		$ 12.2
Redemption price, percentage		100.00%
Redemption of notes, percentage		40.00%
Senior Notes \| Senior Notes due September 2023
Debt Instrument [Line Items]
Debt premium					$ 4.5
Loss on debt extinguishment					(4.9)
Accelerated amortization non-lender fees					$ 0.4
Senior Notes \| Senior Notes due April 2029
Debt Instrument [Line Items]
Debt principal amount			$ 425.0
Debt interest rate			5.00%
Debt issuance costs capitalized			$ 4.2
Senior Notes \| Senior Notes due April 2029 \| Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Redemption price, percentage			100.00%
Senior Notes \| Senior Notes due April 2029 \| Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Redemption of notes, percentage			40.00%
Senior Notes \| Senior Notes due April 2023
Debt Instrument [Line Items]
Debt interest rate			5.25%
Repurchase price			$ 435.9
Repurchased notes			425.0
Debt premium			9.6
Accrued interest			$ 1.3
Loss on debt extinguishment						$ (10.5)
Accelerated amortization non-lender fees						$ 0.9