Commitments - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Commitments [Line Items] | |||
| Percentage decrease in future demand reservation fees | 50.00% | ||
| Percentage decrease in future demand reservation volume | 35.00% | ||
| Maximum annual contributions per employee (401K Plan) | 100.00% | ||
| Minimum matching employer contribution for 401K | 50.00% | ||
| Cost recognized on defined contribution plan | $ 2.6 | $ 2.9 | $ 2.6 |
| Minimum | |||
| Commitments [Line Items] | |||
| Minimum matching employer contribution for 401K | 4.00% | ||
| Maximum | |||
| Commitments [Line Items] | |||
| Minimum matching employer contribution for 401K | 6.00% | ||
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- Definition Commitments [Line Items] No definition available.
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- Definition Firm Transportation Agreements, Required Reduction In Future Demand Reservation Fees, Percentage No definition available.
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- Definition Firm Transportation Agreements, Required Reduction In Future Demand Reservation Volume, Percentage No definition available.
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- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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- Details
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- Details
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