Note 18 - Selected Quarterly Financial Data - Unaudited (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2020 |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Gain (Loss) on Derivative Instruments, Net, Pretax, Total | $ (11,500) | $ (11,200) | $ (15,400) | $ 61,900 | $ (18,700) | $ 5,900 | $ 1,800 | $ (48,900) | $ 23,808 | $ (59,887) | $ 53,798 |
| Gain (Loss) on Extinguishment of Debt, Total | 47,469 | (0) | 47,109 | ||||||||
| Income Tax Expense (Benefit), Total | $ (6,900) | $ (21,100) | $ (8,700) | $ 6,500 | $ (8,200) | $ (55,500) | $ (11,700) | $ 200 | $ (30,153) | $ (75,194) | $ 535 |
| X | ||||||||||
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|