Debt and Credit Facilities - Senior Notes (Details) - USD ($) $ in Millions			3 Months Ended			12 Months Ended
	Nov. 20, 2023	Jan. 31, 2023	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2023	Jan. 27, 2023
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ 0.0		$ 4.9
Senior Notes due February 2031
Debt Instrument [Line Items]
Debt interest rate			7.25%
Senior Notes due February 2031 | Senior Notes
Debt Instrument [Line Items]
Debt instrument aggregate principal	$ 425.0
Debt interest rate	7.25%
Debt issuance costs capitalized	$ 4.2
Redemption price, percentage	100.00%
Redemption price, percentage of principal amount redeemed (up to)	40.00%
Senior Notes due February 2028
Debt Instrument [Line Items]
Debt interest rate			6.125%
Senior Notes due February 2028 | Senior Notes
Debt Instrument [Line Items]
Debt instrument aggregate principal		$ 775.0
Debt interest rate		6.125%
Debt issuance costs capitalized		$ 12.2
Redemption price, percentage		100.00%
Redemption price, percentage of principal amount redeemed (up to)		40.00%
5.125% Senior Notes Due December 2024 | Senior Notes
Debt Instrument [Line Items]
Debt interest rate	5.125%
Debt repurchase amount	$ 433.7
Repurchased principal amount	425.0
Debt premium	7.5
Accrued interest	$ 1.2
Loss on extinguishment of debt				$ (8.3)
Accelerated amortization of non-lender fees						$ 0.8
Senior Notes due September 2023 | Senior Notes
Debt Instrument [Line Items]
Debt interest rate		4.50%
Debt premium							$ 4.5
Loss on extinguishment of debt					(4.9)
Accelerated amortization of non-lender fees					$ 0.4