Note 19 - Selected Quarterly Financial Data - Unaudited (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Gain (Loss) on Derivative Instruments, Net, Pretax, Total | $ (18,700) | $ 5,900 | $ 1,800 | $ (48,900) | $ 59,700 | $ (59,887) | $ 53,798 | $ 4,199 |
| Income Tax Expense (Benefit), Total | $ (8,200) | $ (55,500) | $ (11,700) | $ 200 | (75,194) | 535 | (12,569) | |
| Gain (Loss) on Extinguishment of Debt, Total | $ 47,100 | $ 47,109 | $ 7,811 | |||||
| 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
|