Long-Term Debt - Debt Maturity Schedule (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Maturities
2021 (six months)	$ 13,123
2022	1,702,500
2023	0
2024	814,090
2025	380,020
Thereafter	400,823
Total	3,310,556
Revolving Credit Facility
Maturities
2022	1,702,500
Total	1,702,500
Senior unsecured notes
Maturities
2021 (six months)	8,766
2024	564,090
2025	380,020
Thereafter	400,823
Total	1,353,699
Term Credit Agreement
Maturities
2024	250,000
Total	250,000
Other long-term debt
Maturities
2021 (six months)	4,357
Total	$ 4,357

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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