Derivative Instruments - Additional Information (Details)	9 Months Ended
Sep. 30, 2021 USD ($) bank t $ / T	Dec. 31, 2020 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) expected to be reclassified into the earnings within the next twelve months	$ (200,000)
Number of applicable banks and financial institutions company has agreements with \| bank	2
Collateral related to derivative instruments under collateral security arrangements	$ 31,369,664	$ 0
High Sulfur Fuel Cost Spread \| Expiring In 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional mass (metric tons) \| t	10,750
High Sulfur Fuel Cost Spread \| Expiring In 2020 \| Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Derivative contract price (usd per metric ton) \| $ / T	272
High Sulfur Fuel Cost Spread \| Expiring In 2020 \| Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Derivative contract price (usd per metric ton) \| $ / T	453
FFAs - realized loss \| Other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Collateral related to derivative instruments under collateral security arrangements	$ 31,400,000	$ 100,000

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- Definition

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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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.

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Nominal mass used to calculate payments on a derivative instrument.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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- Definition

Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract measured in mass but not the derivative contract itself.

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