Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Debt Instrument [Line Items]
Total debt - principal	$ 4,147,799	$ 3,271,969	$ 3,469,408
Less unamortized debt issuance costs and debt discount	21,972	20,716	21,638
Debt long term and short term less unamortized debt issuance costs and debt discount	4,125,827	3,251,253	3,447,770
Less current portion	934,246	28,036	284,465
Long-term debt	3,191,581	3,223,217	3,163,305
Bank debt
Debt Instrument [Line Items]
Total debt - principal	1,346,003	930,407	1,185,825
Finance Leases
Debt Instrument [Line Items]
Total debt - principal	69,061	34,480	35,035
Bank Revolving Loans \| Bank debt
Debt Instrument [Line Items]
Total debt - principal	910,000	0	246,000
Less current portion	910,000
U S Term Loans \| Bank debt
Debt Instrument [Line Items]
Total debt - principal	400,000	900,000	900,000
Other Foreign Bank Revolving and Term Loans \| Bank debt
Debt Instrument [Line Items]
Total debt - principal	36,003	30,407	39,825
Less current portion	21,600
Senior Notes \| 4¾% Notes
Debt Instrument [Line Items]
Total debt - principal	300,000	300,000	300,000
Senior Notes \| 3¼% Notes
Debt Instrument [Line Items]
Total debt - principal	753,285	795,307	762,223
Senior Notes \| 4⅛% Notes
Debt Instrument [Line Items]
Total debt - principal	600,000	600,000	600,000
Senior Notes \| 2¼% Notes
Debt Instrument [Line Items]
Total debt - principal	579,450	611,775	586,325
Senior Notes \| 1.4% Notes
Debt Instrument [Line Items]
Total debt - principal	500,000	$ 0	$ 0
Finance Leases
Debt Instrument [Line Items]
Less current portion	$ 2,600

Debt Long Term and Short Term Less Unamortized Debt Issuance Expense And Debt Discount Combined Amount

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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