Debt and Credit Facilities - Senior Notes (Details) - USD ($) $ in Millions			3 Months Ended				9 Months Ended
	Jan. 31, 2023	Apr. 19, 2022	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jan. 27, 2023
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ 0.0		$ 0.0		$ 4.9	$ 11.2
Senior Notes due February 2028
Debt Instrument [Line Items]
Debt interest rate			6.125%				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%
Senior Notes due September 2023
Debt Instrument [Line Items]
Debt interest rate			4.50%				4.50%
Senior Notes due September 2023 | Senior Notes
Debt Instrument [Line Items]
Debt interest rate	4.50%
Loss on extinguishment of debt				$ (4.9)
Debt premium									$ 4.5
Accelerated amortization of non-lender fees				$ 0.4
Senior Notes due April 2029
Debt Instrument [Line Items]
Debt interest rate			5.00%				5.00%
Senior Notes due April 2029 | Senior Notes
Debt Instrument [Line Items]
Debt instrument aggregate principal		$ 425.0
Debt interest rate		5.00%
Debt issuance costs capitalized		$ 4.2
Senior Notes due April 2029 | Senior Notes | Redemption, period, one
Debt Instrument [Line Items]
Redemption price, percentage		100.00%
Senior Notes due April 2029 | Senior Notes | Redemption, period two
Debt Instrument [Line Items]
Redemption price, percentage of principal amount redeemed (up to)		40.00%
Senior Notes due April 2023 | Senior Notes
Debt Instrument [Line Items]
Debt interest rate		5.25%
Loss on extinguishment of debt						$ (10.5)
Debt premium		$ 9.6
Accelerated amortization of non-lender fees						$ 0.9
Debt repurchase amount		435.9
Repurchased principal amount		425.0
Accrued interest		$ 1.3