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Note 3 - Long-term Debt (Details Textual) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Interest Paid, Excluding Capitalized Interest, Operating Activities | $ 39,000 | $ 41,000
Interest Costs Capitalized | $ 0 | $ 0
2024 Notes [Member] |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.125% |
2026 Notes [Member] |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.875% |
2027 Notes [Member] |  |
Debt Instrument, Interest Rate, Stated Percentage | 7.00% |
The 2019 Senior Credit Facility [Member] | The 2019 Term Loan [Member] |  |
Debt Instrument, Interest Rate, Effective Percentage | 4.00% |
The 2017 Senior Credit Facility [Member] | The 2017 Term Loan [Member] |  |
Debt Instrument, Interest Rate, Effective Percentage | 3.80% |

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