Fair Value Measurements and Derivatives - Effects of Derivatives Not Designated as Hedging Instruments on Consolidated Statements of Operations (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Dedesignated as Hedging Instrument | Other income (expense), net | Fuel contracts | ||||
| Derivative Instruments Gain Loss [Line Items] | ||||
| Amount of Gain (Loss) Recognized in Income | $ 7,398 | $ (17) | $ 57,505 | $ 3,629 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|