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v3.20.4

Note 7 - Debt, Credit Facility and Leases (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Long-term Debt Instruments [Table Text Block] |
|  | December 31, 2020 |
|  | Senior Notes |  |  | IQ Notes |  |  | Total |
Principal |  | $ | 475,000 |  |  | $ | 37,886 |  |  | $ | 512,886 |
Unamortized discount/premium and issuance costs |  |  | (6,462 | ) |  |  | 818 |  |  |  | (5,644 | )
Long-term debt balance |  | $ | 468,538 |  |  | $ | 38,704 |  |  | $ | 507,242 |
|  | December 31, 2019 |
|  | 2021 Notes |
Principal |  | $ | 506,500 |
Unamortized discount and issuance costs |  |  | (1,771 | )
Long-term debt balance |  | $ | 504,729 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
|  | Senior Notes |  |  | IQ Notes |
2021 |  | $ | 34,438 |  |  | $ | 2,468 |
2022 |  |  | 34,438 |  |  |  | 2,468 |
2023 |  |  | 34,438 |  |  |  | 2,468 |
2024 |  |  | 34,438 |  |  |  | 2,468 |
2025 |  |  | 34,438 |  |  |  | 39,173 |
2026 |  |  | 34,438 |  |  |  | — |
2027 |  |  | 34,438 |  |  |  | — |
2028 |  |  | 479,301 |  |  |  | — |
Total |  | $ | 720,367 |  |  | $ | 49,045 |
Schedule of Line of Credit Facilities [Table Text Block] |
Interest rates: |  |  |  |
Spread over the London Interbank Offered Rate |  | 2.25 | - | 4.00%
Spread over alternative base rate |  | 1.25 | - | 3.00%
Standby fee per annum on undrawn amounts |  | 0.5625 | - | 1.00%
Covenant financial ratios: |  |  |  |
Senior leverage ratio (debt secured by liens/EBITDA) |  | not more than 2.50:1
Leverage ratio (total debt less unencumbered cash/EBITDA) |  | not more than 4.00:1
Interest coverage ratio (EBITDA/interest expense) |  | not less than 3.00:1
Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] |
Twelve-month period ending December 31, |  |  |  |
2021 |  | $ | 7,053 |
2022 |  |  | 4,801 |
2023 |  |  | 3,116 |
2024 |  |  | 1,849 |
Total |  |  | 16,819 |
Less: imputed interest |  |  | (1,054 | )
Net finance lease obligation |  | $ | 15,765 |
Lessee, Operating Lease, Liability, Maturity [Table Text Block] |
Twelve-month period ending December 31, |  |  |  |
2020 |  | $ | 3,811 |
2021 |  |  | 2,870 |
2022 |  |  | 2,521 |
2023 |  |  | 555 |
2024 |  |  | 526 |
More than 5 years |  |  | 2,339 |
Total |  |  | 12,622 |
Effect of discounting |  |  | (1,980 | )
Operating lease liability |  | $ | 10,642 |

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