Debt (Revolving Credit Facility under the Senior Credit Agreement) (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	May 06, 2024	Mar. 31, 2024	Mar. 31, 2023	Jan. 25, 2024	Dec. 31, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Repayments of revolving credit facility		$ 110,000	$ 185,000
Borrowings under Revolving Credit Facility		125,000	140,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		2,000,000		$ 1,750,000	$ 1,500,000
Repayments of revolving credit facility		110,000	185,000
Line of credit facility, outstanding		$ 195,000	$ 675,000		$ 180,000	$ 720,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Repayments of revolving credit facility	$ 50,000
Borrowings under Revolving Credit Facility	50,000
Line of credit facility, outstanding	$ 195,000
Minimum [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee		0.15%
Basis spread on variable interest rate		1.125%
Minimum [Member] | Revolving Credit Facility [Member] | Eurodollar [Member]
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		1.125%
Minimum [Member] | Revolving Credit Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		0.125%
Maximum [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, commitment fee		0.25%
Basis spread on variable interest rate		1.50%
Maximum [Member] | Revolving Credit Facility [Member] | Eurodollar [Member]
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		1.50%
Maximum [Member] | Revolving Credit Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Basis spread on variable interest rate		0.50%