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Long-Term Debt (Long-Term Debt) (Detail) - USD ($) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2019 | Apr. 16, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 4,062,511 |  | $ 4,174,693
Less - current portion |  | (502) |  | (1,786)
Less - debt issuance costs |  | (22,604) |  | (19,442)
Long-term debt and notes payable |  | 4,039,405 |  | 4,153,465
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | [1] | $ 427,806 |  | 481,610
Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate |  | 3.05% |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate |  | 3.14% |  |
Credit Agreement [Member] | Term Loan Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | [1] | $ 700,000 |  | 1,237,500
Interest rate |  | 3.14% |  |
Senior Notes due 2019 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | [2] | $ 175,000 |  | $ 175,000
Interest rate |  | 5.25% |  | 5.25%
Senior note year due |  | 2019 |  |
Senior Notes due 2021 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 100,000 |  | $ 100,000
Interest rate |  | 4.64% |  | 4.64%
Senior note year due |  | 2021 |  |
New Senior Notes due 2021 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 150,000 |  | $ 150,000
Interest rate |  | 2.39% |  | 2.39%
Senior note year due |  | 2021 |  |
Senior Notes due 2022 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 125,000 |  | $ 125,000
Interest rate |  | 3.09% |  | 3.09%
Senior note year due |  | 2022 |  |
Senior Notes due 2023 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 200,000 |  | $ 200,000
Interest rate |  | 2.75% |  | 2.75%
Senior note year due |  | 2023 |  |
Senior Notes due 2024 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 150,000 |  | $ 150,000
Interest rate |  | 3.24% |  | 3.24%
Senior note year due |  | 2024 |  |
Senior Notes due 2025 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 375,000 |  | $ 375,000
Interest rate |  | 3.41% |  | 3.41%
Senior note year due |  | 2025 |  |
Senior Notes due 2026 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 400,000 |  | $ 400,000
Interest rate |  | 3.03% |  | 3.03%
Senior note year due |  | 2026 |  |
Senior Notes due 2027 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 250,000 |  | $ 250,000
Interest rate |  | 3.49% |  | 3.49%
Senior note year due |  | 2027 |  |
Senior Notes due 2028 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 500,000 |  | $ 500,000
Interest rate |  | 4.25% |  | 4.25%
Senior note year due |  | 2028 |  |
Senior Notes due 2029 [Member] | Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 500,000 |  |
Interest rate |  | 3.50% | 3.50% |
Senior note year due |  | 2029 |  |
Tax-exempt Bonds [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | [1] |  |  | $ 15,930
Notes Payable to Sellers and Other Third Parties [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt | [1] | $ 9,705 |  | $ 14,653
Debt maturity, start |  | 2019 |  |
Debt maturity, end |  | 2036 |  |
Notes Payable to Sellers and Other Third Parties [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate | [1] | 2.75% |  |
Notes Payable to Sellers and Other Third Parties [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate | [1] | 10.90% |  |
[1] | Interest rates represent the interest rates incurred at September 30, 2019
[2] | The Company has recorded the 2019 Senior Notes in long-term in the table above as the Company has the intent and ability to redeem the 2019 Senior Notes on November 1, 2019 using borrowings under the Credit Agreement

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