Debt and Liquidity (2018 Term Loan and 2018 Revolving Credit Facility) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	May 30, 2022	Feb. 28, 2018
2018 Term Loan Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,250,000,000	$ 2,250,000,000			$ 1,500,000,000
Debt Instrument, Basis Spread on Variable Rate		3.00%
Equity Interest Pledge	65.00%	65.00%
Ratio of Indebtedness to Net Capital	4.00	4.00
Borrowing Threshold	$ 35,000,000	$ 35,000,000
Borrowing Threshold Percentage	35.00%	35.00%
2018 Term Loan Facility | Revolving Credit Facility | Term Loan Facility
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 111,100,000	$ 111,100,000	$ 112,400,000
2018 Revolving Credit Facility
Debt Instrument [Line Items]
Long-term Line of Credit	0	0	0
Letters of Credit Outstanding, Amount	4,400,000	$ 4,400,000	$ 3,100,000
Debt Instrument, Basis Spread on Variable Rate		2.00%
Debt Instrument, Basis Spread on Variable Rate, Decrease Upon Achievement Of Specific Credit Ratings		0.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.25%
2018 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	330,000,000	$ 330,000,000		$ 250,000,000
Line of Credit Facility, Increase (Decrease), Net	$ 80,000,000