Leases (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Finance lease obligations	$ 278,948,486	$ 231,780,842
Amounts representing interest and deferred finance fees	(47,408,400)	(34,076,458)
Finance lease obligations, net of interest and deferred finance fees	231,540,086	197,704,384
Current portion of finance lease obligations	21,436,253	19,084,775
Current portion of deferred finance fees	(711,305)	(630,553)
Non-current portion of finance lease obligations	213,207,992	181,250,674
Non-current portion of deferred finance fees	(2,392,854)	(2,000,512)
Total finance lease obligations, net of deferred finance fees	231,540,086	197,704,384
Japanese Leases No.1 and 2 [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	22,886,900	26,531,100
Japanese Lease No.3 [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	11,338,000	13,119,000
Japanese Lease No.4 [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	20,456,241	21,949,099
CMBFL Leases No.1 to 4 [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	66,992,860	72,459,942
Ocean Yield ASA [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	51,683,760	55,729,620
China Huarong Leases [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	38,530,125	41,992,081
CMBFL Shandong [Member]
Lessee, Lease, Description [Line Items]
Finance lease obligations	$ 67,060,600	$ 0

Amount necessary to reduce net minimum lease payments to present value for finance leases.

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term before adjustment of seller's credit.

+ References

No definition available.

+ Details

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease before deducting deferred finance fees, classified as current.

+ References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease before deducting deferred finance fees, classified as noncurrent.

+ References

No definition available.

+ Details

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- Definition

Present value of minimum lease payments for finance leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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- 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.

+ References

No definition available.

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