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Leases (Details) - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
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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

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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. + 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 noncurrent. + References No definition available. + Details
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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 -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 + Details
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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 + Details
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