Debt (Schedule of Long-term Debt) (Details) $ in Thousands, € in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Debt and Lease Obligation	$ 4,411,988			$ 3,384,815
Current portion of long-term debt	73,862			69,846
Long-term debt, net of current portion	4,338,126			3,314,969
Term A-1 Facility | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	399,410			399,278
Long-term Debt, Gross	400,000			400,000
Unamortized Debt Issuance Expense	(590)			(722)
Line of credit outstanding	400,000
Term A-2 Facility | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	483,538			492,716
Long-term Debt, Gross	484,375			493,750
Unamortized Debt Issuance Expense	(837)			(1,034)
Line of credit outstanding	500,000
Term A-3 Facility | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	299,102			0
Long-term Debt, Gross	300,000			0
Unamortized Debt Issuance Expense	(898)			0
Line of credit outstanding			$ 300,000
Term A-4 Facility | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	492,665			0
Long-term Debt, Gross	493,750			0
Unamortized Debt Issuance Expense	(1,085)			0
Line of credit outstanding			$ 500,000
Term Loan B Facility | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	199,182			198,698
Long-term Debt, Gross	200,000			200,000
Unamortized Debt Issuance Expense	(818)			(1,302)
Senior Notes | Senior Notes 6% Due 2030
Debt Instrument [Line Items]
Long-term Debt	993,358			992,772
Long-term Debt, Gross	1,000,000			1,000,000
Less unamortized deferred loan costs net of bond premium	$ (6,642)			(7,228)
Stated interest rate	6.00%	6.00%
Debt instrument, interest rate, effective percentage	6.12%	6.12%
Senior Notes | Senior Notes 5.25% Due 2027
Debt Instrument [Line Items]
Long-term Debt	$ 496,529			495,873
Long-term Debt, Gross	500,000			500,000
Unamortized Debt Issuance Expense	$ (3,471)			(4,127)
Stated interest rate	5.25%	5.25%
Debt instrument, interest rate, effective percentage	5.47%	5.47%
Senior Notes | Senior Notes 3.625% Due 2026
Debt Instrument [Line Items]
Long-term Debt	$ 542,061			546,086
Long-term Debt, Gross	544,973			549,814
Unamortized Debt Issuance Expense	$ (2,912)			(3,728)
Stated interest rate	3.625%	3.625%
Debt instrument, interest rate, effective percentage	3.83%	3.83%
Line of credit outstanding | €		€ 515.0
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 106,625			124,364
Revolving Credit Facility | Line of Credit [Member] | Senior Secured Facilities
Debt Instrument [Line Items]
Long-term Debt	399,518			135,028
Revolving Credit Facility | Line of Credit [Member] | Senior Secured Facilities | Euro Member Countries, Euro
Debt Instrument [Line Items]
Line of credit outstanding	$ 118,500	€ 112.0		$ 32,000