Amount of short-term and long-term debt and lease obligation.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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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.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Sep. 14, 2018	Oct. 31, 2016	Aug. 31, 2013
Debt Instrument [Line Items]
Total	$ 4,633,181	$ 3,856,873
Less: current portion	104,413	64,099
Long-term portion	4,528,768	3,792,774
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	1,113,269	338,112
Unamortized discount and debt issuance cost	2,592	3,138
Other Borrowings
Debt Instrument [Line Items]
Long-term debt	41,339	42,246
Floating Rate Notes, due 2021 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	497,396	496,796
Unamortized discount and debt issuance cost	2,604	3,204
4.15% Senior Notes, due 2024 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 743,638	742,957
Stated interest rate (as a percent)	4.15%		4.15%
Unamortized discount and debt issuance cost	$ 6,362	7,043
4.70% Senior Notes, due 2028 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 1,240,191	1,239,657
Stated interest rate (as a percent)	4.70%		4.70%
Unamortized discount and debt issuance cost	$ 9,809	10,343
3.45% Senior Notes, due 2026 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 748,396	748,282
Stated interest rate (as a percent)	3.45%			3.45%
Unamortized discount and debt issuance cost	$ 1,604	1,718
4.375% Senior Notes, due 2023 \| Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 248,952	248,823
Stated interest rate (as a percent)	4.375%				4.375%
Unamortized discount and debt issuance cost	$ 1,048	$ 1,177