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Schedule of Long-Term Obligations (Parenthetical) (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 10, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Debt Instrument |  |  |
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months |  | $ 326,648 |
Finance Lease, Weighted Average Discount Rate, Percent |  | 4.10% | 4.50%
Debt Issuance Costs, Gross |  | $ 30,000 |
Long-term Debt, Maturities, Repayments of Principal in Year Two |  | 133,951 |
Long-term Debt, Maturities, Repayments of Principal in Year Five |  | 2,427,714 |
US Notes (2023) [Member] |  |  |
Debt Instrument |  |  |
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months |  | 185,000 |
Debt Instrument, Redemption Price, Percentage | 101.583% |  |
Long-term Debt, Maturities, Repayments of Principal in Year Two |  | 105,000 |
Long-term Debt, Maturities, Repayments of Principal in Year Five |  | $ 310,000 |
Senior Notes 2024 [Member] |  |  |
Debt Instrument |  |  |
Debt Instrument, Redemption Price, Percentage |  | 100.00% |
Notes payable |  |  |
Debt Instrument |  |  |
Debt, Weighted Average Interest Rate |  | 3.20% | 2.00%
Other Long Term Debt |  |  |
Debt Instrument |  |  |
Debt, Weighted Average Interest Rate |  | 1.80% | 1.80%

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