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v3.24.0.1

Fair Value Measurements (Narrative) (Details) gal in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2021 USD ($) | Dec. 31, 2023 USD ($) $ / gal € / shares gal | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Derivatives Fair Value [Line Items] |  |  |  |
Debt instrument, face amount | $ 325,000,000 |  |  |
Maturity date | Jun. 01, 2029 |  |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fair value of debt |  | $ 276,315,000 |  |
Fuel Hedge Contracts [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Derivative underlying hedge percent |  | 80.00% |  |
Derivative, Nonmonetary Notional Amount, Volume | gal |  | 13.0 |  |
Fair value hedge liabilities |  | $ 2,918,000 | $ 638,000 |
Reclassification of derivative (gains) losses to earnings net of tax |  | $ 861,000 | 10,629,000 | $ 6,481,000
Fuel Hedge Contracts [Member] | Minimum [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fixed price range | $ / gal |  | 2.35 |  |
Fuel Hedge Contracts [Member] | Maximum [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fixed price range | $ / gal |  | 2.9 |  |
Foreign Currency Exchange Hedge Contracts [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fair value hedge liabilities |  | $ 0 | 6,000 |
Fair value hedge assets |  | 358,000 | 831,000 |
Reclassification of derivative (gains) losses to earnings net of tax |  | 400,000 | (116,000) |
Derivative notional amount |  | 18,600,000 |  |
Reclassification of derivative (gains) losses to earnings net of cash settlements and taxes |  | $ (289,000) | $ 155,000 |
Foreign Currency Exchange Hedge Contracts [Member] | Minimum [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fixed price range | € / shares |  | 1.01 |  |
Foreign Currency Exchange Hedge Contracts [Member] | Maximum [Member] |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Fixed price range | € / shares |  | 1.13 |  |

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