Tsakos Energy Navigation Limited 6-K 21 Sep 23 2023 Q2 Current report (foreign) Financial data

Cover

Cover	6 Months Ended
	Jun. 30, 2023
Cover [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Jun. 30, 2023
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity File Number	001-31236
Entity Registrant Name	TSAKOS ENERGY NAVIGATION LIMITED
Entity Central Index Key	0001166663

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 529,217	$ 304,367
Restricted cash	4,877	5,072
Margin deposits (Note 13)	4,270	4,270
Trade accounts receivable, net	37,594	78,198
Capitalized voyage expenses	888	1,904
Due from related companies (Note 2)	$ 7,167	$ 8,889
Other Receivable, after Allowance for Credit Loss, Current, Related and Nonrelated Party Status [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Advances and other	$ 33,905	$ 15,560
Vessels held for sale	0	61,626
Inventories	20,986	26,217
Prepaid insurance and other	4,238	6,818
Current portion of financial instruments - Fair value (Notes 8, 13)	854	193
Total current assets	643,996	513,114
FINANCIAL INSTRUMENTS - FAIR VALUE, net of current portion (Notes 8, 13)	58	0
RIGHT OF USE ASSET UNDER OPERATING LEASES (Note 4)	47,748	58,706
RIGHT OF USE ASSET UNDER FINANCE LEASES (Note 4)	0	41,851
LONG TERM RECEIVABLES (Note 4)	23,558	23,307
FIXED ASSETS (Note 5)
Advances for vessels under construction	143,997	46,650
Vessels	3,571,330	3,552,607
Accumulated depreciation	(1,026,877)	(972,032)
Vessels’ Net Book Value	2,544,453	2,580,575
Total fixed assets	2,688,450	2,627,225
DEFERRED CHARGES AND LEASEHOLD IMPROVEMENTS, net (Note 6)	45,545	44,372
Total assets	3,449,355	3,308,575
CURRENT LIABILITIES:
Current portion of long - term debt and other financial liabilities (Note 7)	168,930	201,046
Payables	44,594	48,156
Due to related companies (Note 2)	$ 6,469	$ 7,439
Accounts Payable, Current, Related and Nonrelated Party Status [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Dividends payable	$ 8,850	$ 0
Series D Redeemable Preferred Shares (Note 9)	87,927	0
Accrued liabilities	44,256	36,196
Unearned revenue (Note 3)	33,366	26,049
Current portion of obligations under operating leases (Note 4)	21,381	21,737
Current portion of financial liability under operating leases (Note 4)	1,051	1,031
Current portion of financial liability under finance leases (Note 4)	0	28,033
Current portion of financial instruments - Fair value (Notes 8, 13)	61	0
Total current liabilities	416,885	369,687
LONG-TERM DEBT AND OTHER FINANCIAL LIABILITIES, net of current portion (Note 7)	1,369,156	1,376,831
LONG-TERM OBLIGATIONS UNDER OPERATING LEASES (Note 4)	26,367	36,969
FINANCIAL LIABILITY UNDER OPERATING LEASES, net of current portion (Note 4)	1,638	2,164
FINANCIAL INSTRUMENTS - FAIR VALUE, net of current portion (Notes 8, 13)	178	5
Preferred shares, $ 1.00 par value; 25,000,000 shares authorized, 4,745,947 Series E Preferred Shares and 6,747,147 Series F Preferred Shares issued and outstanding at June 30, 2023 and 3,517,061 Series D Preferred Shares, 4,745,947 Series E Preferred Shares and 6,747,147 Series F Preferred Shares issued and outstanding at December 31, 2022	11,493	15,010
Common shares, $ 5.00 par value; 60,000,000 shares authorized at June 30, 2023 and December 31, 2022; 30,183,776 shares issued and 29,505,603 shares outstanding at June 30, 2023 and December 31, 2022	150,919	150,919
Additional paid-in capital	912,214	993,368
Cost of treasury stock	(6,791)	(6,791)
Accumulated other comprehensive income	5,037	7,665
Retained earnings	510,614	311,726
Total Tsakos Energy Navigation Limited stockholders’ equity	1,583,486	1,471,897
Non-controlling Interest	51,645	51,022
Total stockholders’ equity	1,635,131	1,522,919
Total liabilities and stockholders’ equity	$ 3,449,355	$ 3,308,575

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2023	Dec. 31, 2022
Preferred Stock, Par or Stated Value Per Share	$ 1	$ 1
Preferred Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Par or Stated Value Per Share	$ 5	$ 5
Common Stock, Shares Authorized	60,000,000	60,000,000
Common Stock, Shares, Issued	30,183,776	30,183,776
Common Stock, Shares, Outstanding	29,505,603	29,505,603
Series E Preferred Stock [Member]
Preferred Stock, Shares Issued	4,745,947	4,745,947
Preferred Stock, Shares Outstanding	4,745,947	4,745,947
Series F Preferred Stock [Member]
Preferred Stock, Shares Issued	6,747,147	6,747,147
Preferred Stock, Shares Outstanding	6,747,147	6,747,147
Series D Preferred Stock [Member]
Preferred Stock, Shares Issued	3,517,061	3,517,061
Preferred Stock, Shares Outstanding	3,517,061	3,517,061

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
VOYAGE REVENUES (Note 3):	$ 221,454	$ 216,699	$ 482,667	$ 366,403
Voyage expenses	38,892	62,738	84,789	110,941
Charter hire expense	5,731	8,711	12,522	17,326
Vessel operating expenses	46,669	46,630	94,943	89,804
Depreciation and amortization	35,264	34,168	70,403	67,518
General and administrative expenses	12,336	7,383	19,493	14,177
Gain on sale of vessels (Note 5)	0	(299)	(81,198)	(299)
Total expenses	138,892	159,331	200,952	299,467
Operating income	82,562	57,368	281,715	66,936
OTHER INCOME (EXPENSES):
Interest and finance costs, net (Note 8)	(24,334)	(10,992)	(48,848)	(14,292)
Interest income	4,125	226	6,888	416
Other, net	(241)	349	(180)	182
Total other expenses, net	(20,450)	(10,417)	(42,140)	(13,694)
Net income	62,112	46,951	239,575	53,242
Less: Net income attributable to the non-controlling interest	(1,471)	(726)	(2,379)	(1,499)
Net income attributable to Tsakos Energy Navigation Limited	60,641	46,225	237,196	51,743
Effect of preferred dividends	(8,673)	(8,704)	(17,346)	(17,377)
Undistributed income to Series G participants	0	(370)	0	(353)
Deemed dividend on Series D Preferred Shares	(3,256)	0	(3,256)	0
Net income attributable to common stockholders of Tsakos Energy Navigation Limited	$ 48,712	$ 37,151	$ 216,594	$ 34,013
Earnings per share, basic attributable to Tsakos Energy Navigation Limited common Stockholders	$ 1.65	$ 1.31	$ 7.34	$ 1.26
Earnings per share, diluted attributable to Tsakos Energy Navigation Limited common Stockholders	$ 1.65	$ 1.31	$ 7.34	$ 1.26
Weighted average number of shares, basic	29,505,603	28,398,404	29,505,603	26,992,886
Weighted average number of shares, diluted	29,505,603	28,704,595	29,505,603	27,299,077

Consolidated Statements of Othe

Consolidated Statements of Other Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net income	$ 62,112	$ 46,951	$ 239,575	$ 53,242
Unrealized income (loss) from hedging financial instruments
Unrealized (loss) income on interest rate swaps, net (Note 13)	(1,190)	4,802	(2,628)	21,176
Comprehensive income	60,922	51,753	236,947	74,418
Less: comprehensive income attributable to the non-controlling interest	(1,471)	(726)	(2,379)	(1,499)
Comprehensive income attributable to Tsakos Energy Navigation Limited	$ 59,451	$ 51,027	$ 234,568	$ 72,919

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Preferred Stock [Member] Series D Preferred Stock [Member]	Preferred Stock [Member] Series E Preferred Stock [Member]	Preferred Stock [Member] Series F Preferred Stock [Member]	Common Stock [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	Retained Earnings [Member] Series D Preferred Stock [Member]	Retained Earnings [Member] Series E Preferred Stock [Member]	Retained Earnings [Member] Series F Preferred Stock [Member]	Retained Earnings [Member] Series G Preferred Stock [Member]	Tsakos Energy Navigation Limited [Member]	Tsakos Energy Navigation Limited [Member] Series D Preferred Stock [Member]	Tsakos Energy Navigation Limited [Member] Series E Preferred Stock [Member]	Tsakos Energy Navigation Limited [Member] Series F Preferred Stock [Member]	Tsakos Energy Navigation Limited [Member] Series G Preferred Stock [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member] Series B Preferred Stock [Member]	Total	Series D Preferred Stock [Member]	Series E Preferred Stock [Member]	Series F Preferred Stock [Member]	Series B Preferred Stock [Member]	Series G Preferred Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Series D Preferred Stock [Member]	Additional Paid-in Capital [Member] Series E Preferred Stock [Member]	Additional Paid-in Capital [Member] Series F Preferred Stock [Member]	AOCI Attributable to Parent [Member]
Beginning balance, value at Dec. 31, 2021	$ 15,461				$ 126,221	$ (6,791)	$ 149,505					$ 1,240,803					$ 50,988		$ 1,291,791						$ 973,582				$ (17,175)
Beginning balance, shares at Dec. 31, 2021						678,173
Net income	0				0	$ 0	51,743					51,743					1,499		53,242
Issuance of Common Shares					20,321							33,429							33,429						13,108
Partial redemption of Class B preferred shares of subsidiary																	(750)		(750)
Sale of Preferred Shares		$ 0	$ 2	$ 6									$ 1	$ 52	$ 139					$ 1	$ 52	$ 139				$ 1	$ 50	$ 133
Cash dividends declared							(2,863)					(2,863)							(2,863)
Dividends paid on preferred shares								$ (3,846)	$ (5,488)	$ (8,012)			(3,846)	(5,488)	(8,012)			$ (865)		(3,846)	(5,488)	(8,012)	$ (865)
Dividends declared on preferred shares											$ (31)					$ (31)								$ (31)
Other comprehensive income												21,176							21,176										21,176
Ending balance, value at Jun. 30, 2022	15,469				146,542	$ (6,791)	181,008					1,327,103					50,872		1,377,975						986,874				4,001
Ending balance, shares at Jun. 30, 2022						678,173
Beginning balance, value at Dec. 31, 2022	15,010				150,919	$ (6,791)	311,726					1,471,897					51,022		1,522,919						993,368				7,665
Beginning balance, shares at Dec. 31, 2022						678,173
Net income	0				0	$ 0	237,196					237,196					2,379		239,575
Partial redemption of Class B preferred shares of subsidiary																	(1,000)		(1,000)
Redemption of Series D Preferred Shares	(3,517)						(3,256)					(87,927)							(87,927)							$ (81,154)
Cash dividends declared							(8,850)					(8,850)							(8,850)
Dividends paid on preferred shares								$ (3,848)	$ (5,486)	$ (8,012)			$ (3,848)	$ (5,486)	$ (8,012)			$ (756)		$ (3,848)	$ (5,486)	$ (8,012)	$ (756)
Other comprehensive income												(2,628)							(2,628)										(2,628)
Cash dividends paid							(8,856)					(8,856)							(8,856)
Ending balance, value at Jun. 30, 2023	$ 11,493				$ 150,919	$ (6,791)	$ 510,614					$ 1,583,486					$ 51,645		$ 1,635,131						$ 912,214				$ 5,037
Ending balance, shares at Jun. 30, 2023						678,173

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.30	$ 0.10
Common Stock, Dividends, Per Share, Declared	$ 0.30

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Cash Flows from Operating Activities:
Net income	$ 62,112	$ 46,951	$ 239,575	$ 53,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation			59,995	59,043
Amortization of deferred dry-docking costs and leasehold improvements			10,102	8,475
Amortization of deferred finance costs	874	756	2,083	1,992
Amortization of right of use assets for finance lease			306	0
Amortization of revenue escalation			(5,527)	0
Interest expense on long - term receivable, net			(251)	40
Change in fair value of derivative instruments			(3,510)	(1,285)
Gain on sale of vessels	0	(299)	(81,198)	(299)
Payments for dry-docking			(12,253)	(19,244)
Proceeds from swaps terminations			0	260
(Increase) Decrease in:
Receivables and other, net			29,508	(27,187)
Margin deposits			0	1,579
Inventories			5,231	(10,033)
Prepaid insurance and other			2,580	(1,263)
Capitalized voyage expenses			1,016	(629)
Increase (Decrease) in:
Payables and other			(4,532)	(2,658)
Accrued liabilities			8,060	13,458
Unearned revenue			7,317	(1,938)
Net Cash provided by Operating Activities			258,502	73,553
Cash Flows from Investing Activities:
Advances for vessels under construction			(97,347)	(26,773)
Vessel acquisitions and/or improvements			(31,572)	(137,181)
Proceeds from sale of vessels			165,944	19,795
Net Cash provided by (used in) Investing Activities			37,025	(144,159)
Cash Flows from Financing Activities:
Proceeds from long-term debt and other financial liabilities			304,124	341,492
Financing costs			(2,488)	(3,842)
Payments of long-term debt and other financial liabilities			(343,510)	(237,105)
Payments of operating and finance leases			(1,040)	0
Partial redemption of Class B preferred shares of subsidiary			(1,000)	(750)
Proceeds from stock issuance program			0	33,429
Proceeds from preferred stock issuance program, net			0	192
Cash dividends			(26,958)	(18,211)
Net Cash (used in) provided by Financing Activities			(70,872)	115,205
Net increase in cash and cash equivalents and restricted cash			224,655	44,599
Cash and cash equivalents and restricted cash at beginning of period			309,439	127,197	$ 127,197
Cash and cash equivalents and restricted cash at end of period	534,094	171,796	534,094	171,796	309,439
Current Assets:
Cash and cash equivalents	529,217	161,148	529,217	161,148	304,367
Restricted cash	4,877	10,648	4,877	10,648	5,072
Total cash and cash equivalents and restricted cash	$ 534,094	$ 171,796	$ 534,094	$ 171,796	$ 309,439

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited interim condensed consolidated financial statements of T y y The consolidated balance sheet as of December 31, 2022, has been derived from the audited consolidated financial statements included in the Company ’ Impact of COVID-19 and conflict in Ukraine on the Company ’ The impact of the COVID-19 pandemic and the conflict in Ukraine will continue to negatively affect the global economy (i.e. inflation, interest rates) and demand for oil and charter rates, which may continue to have a negative effect on the Company’s business, financial performance and the results of its operations. As a result, many of the Company’s estimates and assumptions required increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, the Company’s estimates may change in future periods. Significant Accounting Policies A discussion of the Company ’ ’ Accounting for Leases (Company act as lessee) – Subsequent measurement finance leases: After lease commencement, the Company measures the lease liability for finance leases by increasing the carrying amount to reflect interest on the lease liability and reducing the carrying amount to reflect the lease payments made during the period. The right-of-use asset is amortized from the lease commencement date to the remaining useful life of the underlying asset since the Company has either the obligation or is reasonably certain to exercise its option to purchase the underlying asset. For finance leases, interest expense is determined using the effective interest method and is included under interest and finance cost, net in the consolidated statements of comprehensive income. Upon exercise of the option to purchase the underlying asset and settlement of the remaining lease liability, if the right-of-use asset was not previously presented together with vessels, the Company reclassifies the right-of-use asset to Fixed Assets under the consolidated balances sheets and applies Topic 360 to the asset beginning on the date the purchase option was exercised. Preferred Shares: New Accounting Pronouncements - Reference Rate Reform: In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. An entity may elect certain optional expedients for hedging relationships that exist as of December 31, 2022 and maintain those optional expedients through the end of the hedging relationship. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848). The amendments in this Update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this Update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this Update apply to all entities that elect to apply the optional guidance in Topic 848. ASU 2020-04 and ASU 2021-01 could be adopted as of March 12, 2020, through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Deferral of the Sunset Date of Reference Rate Reform (Topic 848). Topic 848 as mentioned above provides optional expedients and exceptions for applying GAAP to transactions affected by reference rate (e.g., LIBOR) reform if certain criteria are met, for a limited period of time to ease the potential burden in accounting for (or

Transactions with Related Parti

Transactions with Related Parties	6 Months Ended
	Jun. 30, 2023
Related Party Transactions [Abstract]
Transactions with Related Parties	2. Transactions with Related Parties a) T 27.5 , for the suezmax Eurochampion 2004 Maria Princess Sapporo Princess Ulysses, Hercules I 28.6 , for third-party managed vessels, the handymaxes Afrodite Ariadne Ise Princess 27.5 , for vessels chartered out on a bare-boat basis and for vessels under construction monthly fees were $ 20.4 , for the DP2 shuttle tankers were $ 35.0 , while the monthly fees for LNG carriers, Neo Energy Maria Energy 38.9 and $ 30.8 for the LNG carrier Tenergy 28.5 for all conventional vessels, third-party managed vessels, the suezmax Eurochampion 2004 Maria Princess Sapporo Princess Ulysses, Hercules I, 29.1 , the handymaxes Afrodite Ariadne Ise Princess 27.5 , for vessels chartered out on a bare-boat basis and for vessels under construction monthly fees amounted to $ 21.0 , for the DP2 shuttle tankers at $ 36.0 , while the monthly fees for LNG carriers, Neo Energy Maria Energy 42.4 and $ 34.3 for the LNG carrier Tenergy Dias I, 28.7 , upon its delivery November 2022. Monthly fees for the suezmax Decathlon 28.5 30.0 , for third-party managed vessels, the suezmax Eurochampion 2004 Maria Princess Sapporo Princess Ulysses, Hercules I 29.7 , the handymaxes Afrodite Ariadne 28.9 , Ise Princess 28.9 , for vessels chartered out on a bare-boat basis and for vessels under construction monthly fees amounted to $ 21.0 , for the DP2 shuttle tankers at $ 36.0 , while the monthly fees for LNG carriers, Neo Energy Maria Energy 45.1 and $ 36.7 for the LNG carrier Tenergy Dias I, 28.7 . Monthly fees for the suezmax Decathlon 28.4 . The Management Company, for services rendered, charged $ 4,809 for the second quarter of 2023 and $ 5,041 for the prior year second quarter. Charges for the first half of 2023 amounted to $ 10,030 10,005 In addition to the Management fee, the Management Agreement provides for an incentive award to the Management Company, which is at the absolute discretion of the Holding Company’s Board of Directors. For the first half of 2023, an award of $ 5,000 No The Holding Company and the Management Company have certain officers and directors in common. The Chief Executive Officer, who is also a Director (and until June 16, 2023, the President) of the Holding Compan y y r ’ y ’ Estimated future management fees payable over the next ten years under the Management Agreement, exclusive of any incentive awards and based on existing vessels and known vessels scheduled for future deliver y 10,371 21,066 20,796 20,490 20,130 87,221 Management fees for vessels are included in General and administrative expenses in the accompanying Consolidated Statements of Comprehensive Income. Also, under the terms of the Management Agreement, the Management Company provides supervisory services for the construction of new vessels. During the six months ended June 30, 2023, and June 30, 2022, $ 879 and $ 599 , respectively were charged and accounted for as part of construction costs for delivered vessels or included in Advances for vessels under construction. For the second quarter of 2023, the amount of $ 473 302 in the second quarter of 2022. As of June 30, 2023, the amount due from the Management Company was $ 14 ($ 165 at December 31, 2022). (b) T ’ 171 476 374 1,058 On May 2, 2023, TCM was renamed to Tsakos Shipmanagement S.A.(“TSM”). As of June 30, 2023, the amount due from TSM was $ 7,153 8,889 (c) T T T T 256 0 r 327 0 Tsakos Shipping provides chartering services for the Company ’ T 1.25 % on all freights, hires and demurrages. Such commissions are included in V T T T Artemis, Afrodite, Ariadne, Aris, Apollon, Ajax Arion Amphitrite 848 and $ 206 for the sale of aframax tanker Proteas y 250 for brokerage services provided to the Company in relation to the sale of the six handymax tankers, Artemis, Afrodite, Ariadne, Aris, Apollon, Ajax, presented in Other, net, in the accompanying consolidated statements of comprehensive income. Tsakos Shipping may also charge a fee of $250 (or such other sum as may be agreed) on delivery of each new-building vessel in payment for the cost of design and supervision of the new-building by T 500 in aggregate was charged for supervision fees of the LNG carrier, Tenergy Porto no such fee was charged. Certain members of the T T y T sakos Shipping for chartering services rendered charged $ 2,687 for the second quarter of 2023 compared to $ 2,709 for the prior year second quarte r 5,924 compared to $ 4,529 The amount due to T 3,754 ($ 3,217 at December 31, 2022). There is also as of June 30, 2023, an amount of $ 328 ($ 506 at December 31, 2022) due to T (d) Argosy Insurance Company Limited (“Argosy”) y T 3,593 3,216 y 3,351 compared to $ 2,890 for the prior year quarte r 6,642 compared to $ 5,141 for the prior year first half. The amount due to Argosy as at June 30, 2023, was $ 2,220 ($ 3,569 at December 31, 2022). There is also an amount of $ 1,474 ($ 259 at December 31, 2022) due to Argos y (e) AirMania T y 1,661 compared to $ 1,636 in the prior year quarte r 3,223 compared to $ 2,892 for the prior year’s first half. The amount due to AirMania as of June 30, 2023, was $ 495 488

Revenue from contracts with cus

Revenue from contracts with customers	6 Months Ended
	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue from contracts with customers	3. Revenue from contracts with customers V oyage charters and contracts of affreightment: Revenues from voyage charters and contracts of affreightment amounted to $ 84,234 119,487 y 209,184 185,714 Time, bareboat charters and pooling arrangements: 137,220 97,212 y 273,483 180,689 Unearned revenue: 22,642 13,574 10,724 12,475

Right-of-use assets and lease l

Right-of-use assets and lease liabilities	6 Months Ended
	Jun. 30, 2023
Right-of-use assets and lease liabilities	4. Right-of-use assets and lease liabilities Operating leases On January 9, 2020 , the Company commenced a new five-year sale and leaseback agreement for each of the two suezmaxes, A r Alaska 61,070 . Under these leaseback agreements, there is a selle r ’ 11,800 on the sales price that becomes immediately payable to the Company by the owners at the end of the five-year charter or upon sale of the vessels during the charter period. As of June 30, 2023, the Company has classified the seller’s credit, as long-term receivable amounting to $ 11,334 . In accordance with ASC 842, the Company accounts for the transaction as an operating lease. On December 21, 2020 five-year Sakura Princess. 24,527 r ’ 4,425 4,295 r Sakura Princess 5,148 On June 21, 2021 five-year A r Anta r 52,304 8,415 7,929 At June 30, 2023 and December 31, 2022, the Company assessed the recoverability of the seller’s credits and there was no As at June 30, 2023, the Company recognized on its consolidated balance sheet a right-of-use asset of $ 26,968 A r Anta r 7,071 Sakura Princess 13,709 A r Alaska y The incremental borrowing rate used to determine the right-of-use asset and the obligations under operating leases was 3.59 A r Alaska 2.54 Sakura Princess 2.98 A r Anta r 1.53 2.48 2.99 y 2.02 , 2.98 and 3.49 y As at June 30, 2023 and December 31, 2022, both the right-of use asset and the corresponding obligation under operating leases were $ 47,748 (current portion $ 21,381 and non-current portion $ 26,367 ) and $ 58,706 (current portion $ 21,737 and non-current portion $ 36,969 ), respectivel y Sakura Princess 2,689 (current portion $ 1,051 and non-current portion $ 1,638 ) as of June 30, 2023, and $ 3,195 (current portion $ 1,031 and non-current portion $ 2,164 ) as of December 31, 2022. Right-of-use assets and lease liabilities - Operating Leases (Table) Period/ Year Lease Commitment July 1 to December 31, 2023 $ 12,970 2024 25,958 2025 15,332 2026 4,992 Minimum net lease payments $ 59,252 Less: present value discount (8,815) Total obligations under operating leases and financial liability (current and non-current portion) $ 50,437 The Company has subleased all five vessels 19,856 seven vessels 16,944 for the second quarter 2022. The amount of $ 49,540 was recognized for the first half of 2023 compared to $ 19,450 in the prior year first half for all five vessels. Finance leases On December 21, 2017 , the Company commenced a five-year sale and leaseback agreement for each of the two suezmaxes Eu r Eu r option to extend the charter period for one year and additional two purchase options to repurchase the vessels . The Company accounted the transaction as a lease modification and upon reassessment of the classification of the lease, classified the transaction as a finance lease, as of the effective date of the modification. During February 2023, the Company exercised one of the purchase options and repurchased both vessels at a purchase price of $ 13,750 each , net of the seller’s credit amount of $ 6,500 for each vessel. The Company’s lease liability under finance leases was increased by $ 60 3.9% , while reduced by $ 533 27,500 28,033 306 through the purchase option date resulting in a total amount of $ 41,545 as of such date compared against $ 41,851 as of December 31, 2022. The weighted average remaining lease term for each of the two suezmaxes, Eurochampion 2004 and Euronike was 0.05 years, as at December 31, 2022. Upon such purchase option exercise, as per ASC 842 the financial liability has been settled and the amount of $ 41,545 mentioned above, was presented in the Company’s consolidated balance sheets under vessels. The Company has subleased both vessels, the amount of $ 5,809 and $ 4,601 was recognized as sublease revenue, net of voyage expenses for the finance lease period (January 1, 2023 until February 14, 2023 and February 21, 2023 for Eurochampion 2004 and Euronike, respectively) and the operating lease period, respectively (six-month period ended June 30, 2022). During February 2023, the Company exercised one of the purchase options and repurchased both vessels at a purchase price of $ 13,750

Vessels

Vessels	6 Months Ended
	Jun. 30, 2023
Property, Plant and Equipment [Abstract]
Vessels	5.       Vessels Acquisitions In the first half of 2023, the Company acquired the two suezmaxes, Eurochampion 2004 Euronike January 12, 2022 , the Company took delivery of the newbuilding LNG carrier Tenergy 186,201 . Sales During the first half of 2023, the Company sold its handymax tankers, Afrodite, Artemis, Ariadne, Aris, Ajax Apollon Arion Amphitrite, 81,198 During the first half of 2022, the Company sold the aframax tanker , Proteas 299 Impairment As of June 30, 2023, and December 31, 2022, the Company reviewed the carrying amount including any unamortized dry-docking costs in connection with the estimated recoverable amount and the probability of sale for each of its vessels, vessels under construction and right-of-use-assets. This review did not indicate an impairment charge.

Deferred charges and leasehold

Deferred charges and leasehold improvements	6 Months Ended
	Jun. 30, 2023
Deferred Charges And Leasehold Improvements
Deferred charges and leasehold improvements	6. Deferred charges and leasehold improvements Deferred charges consisting of dry-docking and special survey costs, net of accumulated amortization, amounted to $ 38,626 34,816 y 6,919 1,703 Archangel, Alaska, 3,807 Arctic, Antarctic, 1,409 Sakura Princess) 9,556 450 Eurochampion 2004 Euronike 2,271 Archangel, Alaska, 5,058 Arctic, Antarctic, 1,777 Sakura Princess

Long-term debt and other financ

Long-term debt and other financial liabilities	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Long-term debt and other financial liabilities	7.        Long-term debt and other financial liabilities Long-term debt Long-term debt and other financial liabilities(Table) Facility June 30, 2023 December 31, 2022 Loans $ 1,382,619 $ 1,417,341 Less: Deferred finance costs, net (7,943) (7,354) Total long-term debt 1,374,676 1,409,987 Less: Current portion of debt (162,448) (194,353) Add: Deferred finance costs, current portion 2,495 2,272 Long-term debt, net of current portion and deferred finance costs $ 1,214,723 $ 1,217,906 Loan balances outstanding at June 30, 2023, amounted to $ 1,382,619 . These bank loans are payable in U.S. Dollars in semi-annual installments, with balloon payments due at maturity between May 2024 and December 2031. Interest rates on the outstanding loans as of June 30, 2023, are based on SOFR plus a spread, except for eight loan agreements based on LIBOR plus a spread. On January 20, 2023 , the Company signed a new five-year loan agreement amounting to $ 85,000 relating to the refinancing of the LNG carrier, Neo Energy Andromeda Decathlon On January 30, 2023 72,274 42,085 24,000 ten 6,547.2 6,802 Upon sale of its six handymax vessels, Afrodite, Ajax, Apollon, Ariadne, Aris Artemis 41,750 On February 17, 2023, the Company prepaid the amount of $ 6,815 Arion Amphitrite. On March 29, 2023 , the Company signed a new five-year loan agreement amounting to $ 72,150 relating to the refinancing of the aframax tankers, Sola TS Oslo TS On March 31, 2023, the Company drew down the amount of $ 72,150 25,973 25,650 ten 3,006 42,090 On March 31, 2023 , the Company signed a new five-year loan agreement amounting to $ 70,000 relating to the refinancing of the aframax tankers, Marathon TS Stavanger TS On April 20, 2023, the Company drew down the amount of $ 70,000 63,364 ten 2,850 41,500 On June 6, 2023 , the Company signed a new five-year loan agreement amounting to $ 49,000 relating to the refinancing of the aframax tankers, Asahi Princess Parthenon TS On June 14, 2023, the Company drew down the amount of $ 49,000 35,596 ten 3,062.5 18,375 According to the debt extinguishment guidance of ASC 470-50 “Debt Modifications and Extinguishments”, the Company expenses any unamortized deferred financing costs on its prepaid loans, falling under the scope of debt extinguishments (Note 8). The weighted-average interest rates on the above executed loans for the applicable periods were: Long-term debt and other financial liabilities - Weighted-Average Interest Rates (Table) Three months ended June 30, 2023 6.65 Six months ended June 30, 2023 6.54 Three months ended June 30, 2022 2.75 Six months ended June 30, 2022 2.44 The term bank loans are secured by first priority mortgages on all vessels, by assignments of earnings and insurances of the respectively mortgaged vessels, and by corporate guarantees of the relevant vessel-owning subsidiaries. The loan agreements include, among other covenants, covenants requiring the Company to obtain the lenders’ prior consent in order to incur or issue any financial indebtedness, additional borrowings, pay dividends if an event of default has occurred, sell vessels and assets, and change the beneficial ownership or management of the vessels. Also, the covenants require the Company to maintain a minimum liquidit y 209,843 156,837 3,050 As of June 30, 2023, the Company and its wholly and majority owned subsidiaries had twenty-nine 1,382,619 . The Company fulfilled its requirements in respect of the financial covenants of all of its loan agreements as at June 30, 2023 . The Company ’ The annual principal payments, including balloon payments on loan maturity, required to be made after June 30, 2023, are as follows: Long-term debt and other financial liabilities- Principal Payments (Table) Period/ Year Amount July to December 2023 $ 78,141 2024 180,777 2025 215,816 2026 224,628 2027 354,731 2028 and thereafter 328,526 $ 1,382,619 Other financial liabilities, net The amounts in the accompanying consolidated balance sheets are analyzed as follows: Long-term debt and other financial liabilities - Other financial liabilities, net (Table) June 30, 2023 December 31, 2022 Other financial liabilities $ 165,577 $ 170,241 Less: Deferred finance costs, net (2,167) (2,351) Total other financial liabilities 163,410 167,890 Less: Current portion of other financial liabilities (9,328) (9,328) Add: Deferred finance costs, current portion 351 363 Other financial liabilities, net of current portion and deferred finance costs $ 154,433 $ 158,925 On December 21, 2021 a new ten-year sale and leaseback agreement for its under-construction LNG carrier, Tenergy January 12, 2022 , the Company took delivery of the LNG Tenergy , having a purchase obligation at the end of the tenth anniversary, as well as options to repurchase the vessel at any time following the fifth anniversary of the commencement date. In accordance with ASC 842-40, the Company did not derecognize the respective vessel from its balance sheet and accounted for the amounts received under the sale and leaseback agreement as other financial liabilities. The financing arrangement is repayable in forty quarterly installments of $ 2,332 , commencing three months after the drawdown date, plus a put option of $ 83,955 payable together with the last installment. The agreement has no covenants. The annual principal payments of Other financial liabilities required to be made after June 30, 2023, are as follows: Long-term debt and other financial liabilities - Schedule of annual lease liability (Table) Period/ Year Amount July to December 2023 $ 4,665 2024 9,328 2025 9,328 2026 9,328 2027 9,328 2028 and thereafter 123,600 $ 165,577

Interest and Finance Costs, net

Interest and Finance Costs, net	6 Months Ended
	Jun. 30, 2023
Interest And Finance Costs Net
Interest and Finance Costs, net	8.        Interest and Finance Costs, net Interest and Finance Costs, net (Table) Three months ended June 30, Six months ended June 30, 2023 2022 2023 2022 Interest expense 26,252 10,986 51,340 20,847 Less: Interest capitalized (1,166) (270) (2,090) (498) Interest expense, net 25,086 10,716 49,250 20,349 Bunkers swap, put and call options cash settlements — — — (9,912) Amortization of deferred finance costs 874 756 2,083 1,992 Bank charges 67 81 136 85 Discount of long-term receivables — — — 350 Amortization of deferred gain on termination of financial instruments (1,313) — (2,611) — Interest expense on redeemable preferred shares 663 — 663 — Change in fair value of non-hedging financial instruments (1,043) (561) (673) 1,428 Net total 24,334 10,992 48,848 14,292 In 2022, the Company discontinued ten of its cash flow hedge interest rate swaps through early termination agreements. The Company considered the forecasted transactions as still probable for seven of those interest rate swaps. The collected amounts are presented in accumulated other comprehensive income and are amortized until the expiry date of each interest rate swap. At December 31, 2022, the Company was committed to one floating-to-fixed interest rate swap with major financial institution which matured in April 2023. The interest rate swap agreement was designed and qualified as a cash flow hedge, to hedge its exposure to interest rate fluctuations associated with its debt covering notional amounts. On March 22, 2023, the Company committed to one 3.82 six-month SOFR 1,046 673 On March 16, 2022, the Company discontinued one of its cash flow hedge interest rate swaps associated with a secured loan facility which was refinanced. Upon completion of the refinancing on March 17, 2022, the hedge was de-designated as a hedging swap and the remaining gain included in accumulated other comprehensive income and for which the forecasted transaction is deemed no longer probable of occurring, was immediately classified into earnings. Following the de-designation, the change in its fair value has been included in change in fair value of non-hedging financial instruments and amounted to $ 561 (positive). For the three and six months of 2023, amortization of deferred gain on termination of hedging interest rate swaps, for which the Company has considered the forecasted transactions as still probable, amounted to $ 1,313 2,611 no During the first half of 2023, the Company entered into four 3 3 9,912 1,989 During the first half of 2023 and 2022, the Company has written-off unamortized deferred finance costs of $ 430 579 During the first half of 2023 and 2022, the Company recognized a discount on its lease liability (Note 4) amounting to $nil 0 350 On May 30, 2023 3,517,061 663

Stockholders_ Equity

Stockholders’ Equity	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Stockholders’ Equity	9.        Stockholders’ Equity During the first half of 2022, the Company issued 4,064,266 165 2,239 5,888 33,621 no On January 30, 2023, and May 1, 2023, the Company paid dividends of $ 0.59375 8,012 On February 28, 2023, and May 30, 2023, the Company paid dividends of $ 0.54687 3,848 0.57812 5,486 On March 16, 2023, the Company declared an annual dividend of $ 0.60 per common share, $ 0.30 per common share paid, $ 8,856 in total, on June 15, 2023, and $ 0.30 per common share, $ 8,850 0.10 per common share paid on July 20, 2022 . On May 30, 2023 3,517,061 25.00 0.243056 July 7, 2023 3,256 The Company had 459,286 Series G Redeemable Convertible Perpetual Preferred shares outstanding as of June 30, 2022. In September 2022, all 459,286 outstanding Series G Redeemable Convertible Perpetual Preferred Shares were converted into an aggregate of 306,190 common shares of the Company. The Company had 0 0 The Series B Cumulative Redeemable Perpetual Preferred Shares of Shyris Shipping (the “Shyris Shipping Preferred Shares”), a wholly owned subsidiary of the Company, par value $ 0.001 at a rate of 7.50% per annum, payable in arrears on the 1st day of March and September of each year , as, when and if declared by the Shyris Shipping Board of Directors. Shyris Shipping paid dividends on the Shyris Shipping Preferred Shares amounting to $ 756 in the period ended June 30, 2023, and $ 865 in the period ended June 30, 2022. While the Shyris Preferred Shares were outstanding, Shyris Shipping was not permitted to declare or pay dividends to the Company or incur additional indebtedness without the consent of the holder of Shyris Shipping Preferred Shares. The initial liquidation preference of the Shyris Shipping Preferred Shares is $ 10.00 y The holders of the Shyris Shipping Preferred Shares have no right to vote on matters on which shareholders of the Company are entitled to vote. The holders of the Shyris Shipping Preferred Shares generally do not have any other voting rights, howeve r ’ The Shyris Shipping Preferred Shares were non-convertible and perpetual, and redeemable by Shyris Shipping, in whole or in part, at redemption prices that decline over time from 112.5 % to 100 % of the deemed issuance price, plus any accrued and unpaid dividends. The Shyris Shipping Preferred Shares did not meet the criteria for mandatorily redeemable financial instruments and their value of $ 22,889 , upon issuance was included in non-controlling interest. Additionall y w On April 12, 2022, the Board of Directors of Shyris Shipping Company authorized the redemption of 75,000 of the outstanding Series B Cumulative Redeemable Perpetual Preferred Shares. On April 15, 2022, the Company repaid the amount of $ 750 , which was recognized as a reduction of non-controlling interest in the statement of stockholders’ equity. 100,000 of its outstanding Series B Cumulative Redeemable Perpetual Preferred Shares for an aggregate redemption price of $ 1,000 and was included in non-controlling interest in the accompanying Consolidated Balance Sheet as at June 30, 2023. On July 25, 2023, and September 1, 2023, Shyris Shipping redeemed 500,000 and 1,438,841 of the outstanding Series B Cumulative Redeemable Perpetual Preferred Shares for an aggregate redemption price of $ 5,000 and $ 14,388 , respectively. Following these redemptions, no Series B Cumulative Redeemable Perpetual Preferred Shares were outstanding.

Accumulated other comprehensive

Accumulated other comprehensive income	6 Months Ended
	Jun. 30, 2023
Equity [Abstract]
Accumulated other comprehensive income	10.        Accumulated other comprehensive income In the first half of 2023, accumulated other comprehensive income decreased with unrealized loss of $ 2,628 21,176

Earnings per common share

Earnings per common share	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Earnings per common share	11.        Earnings per common share For the three and six-month periods ended June 30, 2023, all common shares issued are Tsakos Energy Navigation Limited common stock and have equal rights to vote and participate in dividends. Net income attributable to common shareholders is adjusted by the contractual amount of dividends on Series D Preferred Stock, Series E Preferred Stock, and Series F Preferred Stock that should be paid for the period. For the three and six months periods ended June 30, 2022, the Company calculates basic earnings per share in conformity with the two-class method required for companies with participating securities. Under the two-class method, basic earnings per share is calculated by dividing the net income by the weighted-average number of common shares outstanding during the period, less shares subject to repurchase. The two-class method requires income available to common stockholders for the period to be allocated between common stock and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed. Any remaining earnings would be distributed to the holders of common stock and the holders of the Series G Convertible Preferred Shares on a pro-rata basis assuming conversion of all Series G Convertible Preferred Shares into common shares. This participating security does not contractually require the holders of such shares to participate in the Company ’ Diluted earnings per share is computed by giving effect to all potentially dilutive common share equivalents outstanding for the period. For the three and six months ended June 30, 2022, securities that could potentially dilute basic earnings per share in the future that were included in the computation of diluted earnings per share, were the preferred convertible stock that requires the payment of cash by the holder upon conversion, the proceeds assumed to be received shall be assumed to be applied to purchase common stock under the treasury stock method and the convertible security shall be assumed to be converted under the if-converted method. Net income attributable to common stockholders of Tsakos Energy Navigation Limited for the three and six months ended June 30, 2022, is adjusted by the amount of dividends on Series G Convertible Preferred Shares and corresponding undistributed income to Series G participants, as set forth below. For the three and six months ended June 30, 2023, there were no convertible securities outstanding. The following table sets forth the computation of basic and diluted earnings per share: Earnings (Loss) per Common Share (Table) Three months ended June 30 Six months ended June 30, 2022 2023 2022 2023 2022 Numerator Net income attributable to Tsakos Energy Navigation Limited $ 60,641 $ 46,225 $ 237,196 $ 51,743 Preferred share dividends Series D (1,924) (1,924) (3,848) (3,846) Preferred share dividends Series E (2,743) (2,743) (5,486) (5,488) Preferred share dividends Series F (4,006) (4,006) (8,012) (8,012) Preferred share dividends, Convertible Series G — (31) — (31) Undistributed income to Series G participants — (370) — (353) Deemed dividend on redeemable Series D preferred shares (3,256) — (3,256) — Net income attributable to common stockholders of T 48,712 37,151 216,594 34,013 Preferred share dividends, Convertible Series G — 31 — 31 Undistributed income to Series G participants — 370 — 353 Net income attributable to common stockholders of Tsakos Energy Navigation Limited, for dilution purposes 48,712 37,552 216,594 34,397 Denominator W eighted average number of shares, basic 29,505,603 28,398,404 29,505,603 26,992,886 W eighted average number of shares, diluted 29,505,603 28,704,595 29,505,603 27,299,077 Earnings per share, basic attributable to T $ 1.65 $ 1.31 $ 7.34 $ 1.26 Earnings per share, diluted attributable to T $ 1.65 $ 1.31 $ 7.34 $ 1.26

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	1 2.        Commitments and Contingencies As of June 30, 2023, the Company had eight vessels under construction, two DP2 shuttle tankers, four dual fuel LNG powered aframax tankers and two suezmax tankers The total contracted amount remaining to be paid for the eight vessels under construction plus the extra costs agreed as of June 30, 2023, was $ 591,627 144,891 180,380 266,356 In the ordinary course of the shipping business, various claims and losses may arise from disputes with charterers, agents and other suppliers relating to the operations of the Company ’ ’ Brazilian authorities have charged certain shipbrokers with various offenses in connection with charters entered into between a major state oil entity and various international shipowners. In 2020, in parallel with U.S. Department of Justice and U.S. Securities and Exchange Commission investigations regarding whether the circumstances surrounding these charters, including the actions taken by these shipbrokers, constituted non-compliance with provisions of the U.S. Foreign Corrupt Practices Act of 1977 (FC P y Charters-out The future minimum revenues of vessels in operation at June 30, 2023 and vessels scheduled to be delivered as per contractual terms before reduction for brokerage commissions, expected to be recognized on non-cancelable time charters are as follows: Commitments and Contingencies - Minimum Future Charter Revenue Period/ Year Amount July 1 to December 31, 2023 $ 234,815 2024 334,769 2025 201,580 2026 160,187 2027 146,001 2028 to 2038 454,963 Minimum charter revenues $ 1,532,315 These amounts do not assume any off-hire.

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Financial Instruments	13.        Financial Instruments (a) Interest rate risk: (b) Concentration of credit risk: ’ y (c) Fair value: The fair values of the interest rate swap agreements and bunker swap agreements discussed in Note 8 above, are determined through Level 2 of the fair value hierarchy as defined in F V The estimated fair values of the Company ’ Financial Instruments - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Table) Carrying June 30, 2023 Fair Value June 30, 2023 Carrying December 31, 2022 Fair Value December 31, 2022 Financial assets (liabilities) Cash and cash equivalents 529,217 529,217 304,367 304,367 Restricted cash 4,877 4,877 5,072 5,072 Margin deposits 4,270 4,270 4,270 4,270 Long-term receivable 23,558 23,558 23,307 23,307 Redemption of Series D Preferred Shares (87,927) (87,927) — — Debt and other financial liabilities (1,548,196) (1,548,196) (1,587,582) (1,587,582) The Company does not offset fair value amounts recognized for derivatives by the right to reclaim cash collateral or the obligation to return cash collateral. The amount of collateral to be posted is defined in the terms of respective master agreement executed with counterparties or exchanges and is required when agreed upon threshold limits are exceeded. As of June 30, 2023, the Company deposited cash collateral related to its derivative instruments under its collateral security arrangements of $ 4,270 4,270 T abular Disclosu r Derivatives are recorded in the consolidated balance sheet on a net basis by counterparty when a legal right of set-off exists. The following tables present information with respect to the fair values of derivatives reflected in the consolidated balance sheet on a gross basis by transaction. The tables also present information with respect to gains and losses on derivative positions reflected in the consolidated statements of comprehensive income or in the consolidated balance sheets, as a component of accumulated other comprehensive income. Financial Instruments - Schedule of Derivative Instruments - Statements of Financial Position Location (Table) Asset Derivatives Liability Derivatives June 30, 2023 December 31,2022 June 30, 2023 December 31, 2022 Balance Sheet Location Fair Value Fair Value Fair Value Fair Value Derivatives designated as hedging instruments Interest rate swaps Current portion of financial instruments - Fair value — 193 — — Financial instruments - Fair value, net of current portion — — — 5 Subtotal — 193 — 5 Derivatives not designated as hedging instruments Interest rate swaps Current portion of financial instruments - Fair value 854 — — — Financial instruments - Fair value, net of current portion — — 178 — Bunker swaps Current portion of financial instruments - Fair value 58 — 61 — Subtotal 912 — 239 — Total derivatives 912 193 239 5 Derivatives - Net effect on the consolidated statements of comprehensive income Financial Instruments - Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivative (Effective Portion) (Table) Gain (Loss) Recognized in Accumulated Derivative Amount Amount 2023 2022 2023 2022 Interest rate swaps — 7,376 (132) 26,037 Reclassification due to de-designations to interest and finance costs, net (1,313) (2,623) (2,611) (4,959) Reclassification to depreciation expense 123 49 115 98 Total (1,190) 4,802 2,628 21,176 Derivatives – Net effect on the consolidated statement of comprehensive income Financial Instruments - Schedule of Derivatives Not Designated as Hedging Instruments - Net Effect on the Statement Of Comprehensive Income (Table) Net Realized and Unrealized Gain (Loss) recognized on Statement of Other Comprehensive Income Derivative Location Amount Amount 2023 2022 2023 2022 Interest rate swaps Interest and finance costs, net 1,046 561 676 561 Bunker swaps Interest and finance costs, net (3) — (3) 7,923 Total 1,043 561 673 8,484 The following tables summarize the fair values for assets and liabilities measured on a recurring basis as of June 30, 2023, and December 31, 2022, using Level 2 inputs (significant other observable inputs): Financial Instruments - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Table) Recurring measurements: June 30, 2023 December 31, 2022 Interest rate swaps 676 188 Bunker swaps (3) — Total 673 188

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	14.        Subsequent Events The Company evaluated subsequent events (other than those disclosed above), until the date these interim condensed consolidated financial statements were available to be issued. (a) On July 25 and September 1, 2023, the Company’s subsidiary, Shyris Shipping, paid aggregate dividends of $ 150 539.6 (b) On July 27, 2023, the Company paid dividends of $ 0.59375 9.50 (c) On August 4, 2023, the Company signed two shipbuilding contracts for the construction of two scrubber-fitted MR product tankers for delivery in 2026. (d) On August 25, 2023, the Company paid dividends of $ 0.57812 9.25 (e) On September 07, 2023, the Company declared a special dividend of $ 0.40 (f) On September 21, 2023 tanker Njord DF

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2023
Accounting Policies [Abstract]
Accounting for Leases (Company act as lessee) – Subsequent measurement finance leases:	Accounting for Leases (Company act as lessee) – Subsequent measurement finance leases: After lease commencement, the Company measures the lease liability for finance leases by increasing the carrying amount to reflect interest on the lease liability and reducing the carrying amount to reflect the lease payments made during the period. The right-of-use asset is amortized from the lease commencement date to the remaining useful life of the underlying asset since the Company has either the obligation or is reasonably certain to exercise its option to purchase the underlying asset. For finance leases, interest expense is determined using the effective interest method and is included under interest and finance cost, net in the consolidated statements of comprehensive income. Upon exercise of the option to purchase the underlying asset and settlement of the remaining lease liability, if the right-of-use asset was not previously presented together with vessels, the Company reclassifies the right-of-use asset to Fixed Assets under the consolidated balances sheets and applies Topic 360 to the asset beginning on the date the purchase option was exercised.
Preferred Shares:	Preferred Shares:
New Accounting Pronouncements - Reference Rate Reform:	New Accounting Pronouncements - Reference Rate Reform: In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform. An entity may elect certain optional expedients for hedging relationships that exist as of December 31, 2022 and maintain those optional expedients through the end of the hedging relationship. In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848). The amendments in this Update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified as a result of reference rate reform. Amendments in this Update to the expedients and exceptions in Topic 848 capture the incremental consequences of the scope clarification and tailor the existing guidance to derivative instruments affected by the discounting transition. The amendments in this Update apply to all entities that elect to apply the optional guidance in Topic 848. ASU 2020-04 and ASU 2021-01 could be adopted as of March 12, 2020, through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Deferral of the Sunset Date of Reference Rate Reform (Topic 848). Topic 848 as mentioned above provides optional expedients and exceptions for applying GAAP to transactions affected by reference rate (e.g., LIBOR) reform if certain criteria are met, for a limited period of time to ease the potential burden in accounting for (or

Right-of-use assets and lease_2

Right-of-use assets and lease liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Right-of-use assets and lease liabilities - Operating Leases (Table)	Right-of-use assets and lease liabilities - Operating Leases (Table) Period/ Year Lease Commitment July 1 to December 31, 2023 $ 12,970 2024 25,958 2025 15,332 2026 4,992 Minimum net lease payments $ 59,252 Less: present value discount (8,815) Total obligations under operating leases and financial liability (current and non-current portion) $ 50,437

Long-term debt and other fina_2

Long-term debt and other financial liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Long-term debt and other financial liabilities(Table)	Long-term debt and other financial liabilities(Table) Facility June 30, 2023 December 31, 2022 Loans $ 1,382,619 $ 1,417,341 Less: Deferred finance costs, net (7,943) (7,354) Total long-term debt 1,374,676 1,409,987 Less: Current portion of debt (162,448) (194,353) Add: Deferred finance costs, current portion 2,495 2,272 Long-term debt, net of current portion and deferred finance costs $ 1,214,723 $ 1,217,906
Long-term debt and other financial liabilities - Weighted-Average Interest Rates (Table)	Long-term debt and other financial liabilities - Weighted-Average Interest Rates (Table) Three months ended June 30, 2023 6.65 Six months ended June 30, 2023 6.54 Three months ended June 30, 2022 2.75 Six months ended June 30, 2022 2.44
Long-term debt and other financial liabilities- Principal Payments (Table)	Long-term debt and other financial liabilities- Principal Payments (Table) Period/ Year Amount July to December 2023 $ 78,141 2024 180,777 2025 215,816 2026 224,628 2027 354,731 2028 and thereafter 328,526 $ 1,382,619
Long-term debt and other financial liabilities - Other financial liabilities, net (Table)	Long-term debt and other financial liabilities - Other financial liabilities, net (Table) June 30, 2023 December 31, 2022 Other financial liabilities $ 165,577 $ 170,241 Less: Deferred finance costs, net (2,167) (2,351) Total other financial liabilities 163,410 167,890 Less: Current portion of other financial liabilities (9,328) (9,328) Add: Deferred finance costs, current portion 351 363 Other financial liabilities, net of current portion and deferred finance costs $ 154,433 $ 158,925
Long-term debt and other financial liabilities - Schedule of annual lease liability (Table)	Long-term debt and other financial liabilities - Schedule of annual lease liability (Table) Period/ Year Amount July to December 2023 $ 4,665 2024 9,328 2025 9,328 2026 9,328 2027 9,328 2028 and thereafter 123,600 $ 165,577

Interest and Finance Costs, n_2

Interest and Finance Costs, net (Tables)	6 Months Ended
	Jun. 30, 2023
Interest And Finance Costs Net
Interest and Finance Costs, net (Table)	Interest and Finance Costs, net (Table) Three months ended June 30, Six months ended June 30, 2023 2022 2023 2022 Interest expense 26,252 10,986 51,340 20,847 Less: Interest capitalized (1,166) (270) (2,090) (498) Interest expense, net 25,086 10,716 49,250 20,349 Bunkers swap, put and call options cash settlements — — — (9,912) Amortization of deferred finance costs 874 756 2,083 1,992 Bank charges 67 81 136 85 Discount of long-term receivables — — — 350 Amortization of deferred gain on termination of financial instruments (1,313) — (2,611) — Interest expense on redeemable preferred shares 663 — 663 — Change in fair value of non-hedging financial instruments (1,043) (561) (673) 1,428 Net total 24,334 10,992 48,848 14,292

Earnings per common share (Tabl

Earnings per common share (Tables)	6 Months Ended
	Jun. 30, 2023
Earnings Per Share [Abstract]
Earnings (Loss) per Common Share (Table)	Earnings (Loss) per Common Share (Table) Three months ended June 30 Six months ended June 30, 2022 2023 2022 2023 2022 Numerator Net income attributable to Tsakos Energy Navigation Limited $ 60,641 $ 46,225 $ 237,196 $ 51,743 Preferred share dividends Series D (1,924) (1,924) (3,848) (3,846) Preferred share dividends Series E (2,743) (2,743) (5,486) (5,488) Preferred share dividends Series F (4,006) (4,006) (8,012) (8,012) Preferred share dividends, Convertible Series G — (31) — (31) Undistributed income to Series G participants — (370) — (353) Deemed dividend on redeemable Series D preferred shares (3,256) — (3,256) — Net income attributable to common stockholders of T 48,712 37,151 216,594 34,013 Preferred share dividends, Convertible Series G — 31 — 31 Undistributed income to Series G participants — 370 — 353 Net income attributable to common stockholders of Tsakos Energy Navigation Limited, for dilution purposes 48,712 37,552 216,594 34,397 Denominator W eighted average number of shares, basic 29,505,603 28,398,404 29,505,603 26,992,886 W eighted average number of shares, diluted 29,505,603 28,704,595 29,505,603 27,299,077 Earnings per share, basic attributable to T $ 1.65 $ 1.31 $ 7.34 $ 1.26 Earnings per share, diluted attributable to T $ 1.65 $ 1.31 $ 7.34 $ 1.26

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies - Minimum Future Charter Revenue	Commitments and Contingencies - Minimum Future Charter Revenue Period/ Year Amount July 1 to December 31, 2023 $ 234,815 2024 334,769 2025 201,580 2026 160,187 2027 146,001 2028 to 2038 454,963 Minimum charter revenues $ 1,532,315

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Financial Instruments - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Table)	Financial Instruments - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Table) Carrying June 30, 2023 Fair Value June 30, 2023 Carrying December 31, 2022 Fair Value December 31, 2022 Financial assets (liabilities) Cash and cash equivalents 529,217 529,217 304,367 304,367 Restricted cash 4,877 4,877 5,072 5,072 Margin deposits 4,270 4,270 4,270 4,270 Long-term receivable 23,558 23,558 23,307 23,307 Redemption of Series D Preferred Shares (87,927) (87,927) — — Debt and other financial liabilities (1,548,196) (1,548,196) (1,587,582) (1,587,582)
Financial Instruments - Schedule of Derivative Instruments - Statements of Financial Position Location (Table)	Financial Instruments - Schedule of Derivative Instruments - Statements of Financial Position Location (Table) Asset Derivatives Liability Derivatives June 30, 2023 December 31,2022 June 30, 2023 December 31, 2022 Balance Sheet Location Fair Value Fair Value Fair Value Fair Value Derivatives designated as hedging instruments Interest rate swaps Current portion of financial instruments - Fair value — 193 — — Financial instruments - Fair value, net of current portion — — — 5 Subtotal — 193 — 5 Derivatives not designated as hedging instruments Interest rate swaps Current portion of financial instruments - Fair value 854 — — — Financial instruments - Fair value, net of current portion — — 178 — Bunker swaps Current portion of financial instruments - Fair value 58 — 61 — Subtotal 912 — 239 — Total derivatives 912 193 239 5
Financial Instruments - Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivative (Effective Portion) (Table)	Financial Instruments - Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivative (Effective Portion) (Table) Gain (Loss) Recognized in Accumulated Derivative Amount Amount 2023 2022 2023 2022 Interest rate swaps — 7,376 (132) 26,037 Reclassification due to de-designations to interest and finance costs, net (1,313) (2,623) (2,611) (4,959) Reclassification to depreciation expense 123 49 115 98 Total (1,190) 4,802 2,628 21,176
Financial Instruments - Schedule of Derivatives Not Designated as Hedging Instruments - Net Effect on the Statement Of Comprehensive Income (Table)	Financial Instruments - Schedule of Derivatives Not Designated as Hedging Instruments - Net Effect on the Statement Of Comprehensive Income (Table) Net Realized and Unrealized Gain (Loss) recognized on Statement of Other Comprehensive Income Derivative Location Amount Amount 2023 2022 2023 2022 Interest rate swaps Interest and finance costs, net 1,046 561 676 561 Bunker swaps Interest and finance costs, net (3) — (3) 7,923 Total 1,043 561 673 8,484
Financial Instruments - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Table)	Financial Instruments - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Table) Recurring measurements: June 30, 2023 December 31, 2022 Interest rate swaps 676 188 Bunker swaps (3) — Total 673 188

Transactions with Related Par_2

Transactions with Related Parties (Details Narrative) - USD ($)				1 Months Ended	3 Months Ended		4 Months Ended	6 Months Ended		12 Months Ended
	Jan. 01, 2023	Jan. 12, 2022	Jan. 01, 2022	Jul. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	May 01, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Due from related parties					$ 7,167,000			$ 7,167,000		$ 8,889,000
Other Liabilities					6,469,000			6,469,000		7,439,000
Accrued Liabilities, Current					44,256,000			44,256,000		36,196,000
Other Nonoperating Income (Expense)					(241,000)	$ 349,000		(180,000)	$ 182,000
Tsakos Columbia Shipmanagement S.A. [Member]
Related Party Transaction [Line Items]
Services rendered expense					256,000				0
Due from related parties					7,153,000			7,153,000		8,889,000
Professional and Contract Services Expense					171,000	476,000		374,000	1,058,000
Estimated Future Management Fees Remainder Of 2023 [Member]
Related Party Transaction [Line Items]
Services rendered expense								10,371,000
Estimated Future Management Fees Remainder Of 2024 [Member]
Related Party Transaction [Line Items]
Services rendered expense								21,066,000
Estimated Future Management Fees Remainder Of 2025 [Member]
Related Party Transaction [Line Items]
Services rendered expense								20,796,000
Estimated Future Management Fees Remainder Of 2026 [Member]
Related Party Transaction [Line Items]
Services rendered expense								20,490,000
Estimated Future Management Fees Remainder Of 2027 [Member]
Related Party Transaction [Line Items]
Services rendered expense								20,130,000
Estimated Future Management Fees Remainder Of 2028 To 2032 [Member]
Related Party Transaction [Line Items]
Services rendered expense								87,221,000
Tsakos Energy Management Limited [Member]
Related Party Transaction [Line Items]
Services rendered expense					4,809,000	5,041,000		10,030,000	10,005,000
Supervisory services expenses					473,000	302,000		879,000	599,000
Due from related parties					14,000			14,000		165,000
Incentive Awards [Member]
Related Party Transaction [Line Items]
Selling, General and Administrative Expense								5,000,000		0
Tsakos Columbia Shipmanagement S.A. [Member] | Tsakos Shipping And Trading S.A. [Member]
Related Party Transaction [Line Items]
Services rendered expense						0		327,000
Tsakos Shipping And Trading S.A. [Member]
Related Party Transaction [Line Items]
Services rendered expense					2,687,000	2,709,000		$ 5,924,000	4,529,000
Chartering commission on all freights, hires and demurrages								1.25%
Commissions In Connection With Delivery Of Each New Building								$ 250,000
Other Liabilities					3,754,000			3,754,000		3,217,000
Accrued Liabilities, Current					328,000			328,000		506,000
Argosy Insurance Company Limited [Member]
Related Party Transaction [Line Items]
Services rendered expense					3,351,000	2,890,000		6,642,000	5,141,000
Other Liabilities					2,220,000			2,220,000		3,569,000
Accrued Liabilities, Current					1,474,000			1,474,000		259,000
Other Nonoperating Income (Expense)								3,593,000
AirMania Travel S.A. [Member]
Related Party Transaction [Line Items]
Services rendered expense					1,661,000	$ 1,636,000		3,223,000	2,892,000
Other Liabilities					$ 495,000			495,000		$ 488,000
Operating conventional vessels [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	$ 30,000		$ 27,500				$ 28,500
Third Party Managed Vessels [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	29,700		28,600				29,100
Afrodite, Ariadne and Ise Princess [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	28,900		27,500				27,500
Chartered out vessels on a bare-boat basis and vessels under construction [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	21,000		20,400				21,000
DP2 Shuttle Tankers [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	36,000		35,000				36,000
Neo Energy and Maria Energy - LNG carries [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	45,100		$ 38,900				42,400
LNG carrier Tenergy [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	36,700	$ 30,800					34,300
VLCC Dias I [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	28,700						$ 28,700
Suezmax Decathlon [Member]
Related Party Transaction [Line Items]
Monthly Management Fees	$ 28,400			$ 28,500
Afrodite And Ariadne [Member]
Related Party Transaction [Line Items]
Monthly Management Fees								28,900
Six Handymax Tankers and Two Handysize Tankers [Member] | Tsakos Shipping And Trading S.A. [Member]
Related Party Transaction [Line Items]
Brokerage commission amount									848,000
Six Handymax Tankers and Two Handysize Tankers [Member] | Tsakos Shipping And Trading S.A. [Member] | Non executive member [Member]
Related Party Transaction [Line Items]
Brokerage commission amount								250,000
Aframax Proteas [Member] | Tsakos Shipping And Trading S.A. [Member]
Related Party Transaction [Line Items]
Brokerage commission amount									206,000
Four Vessels [Member] | Tsakos Shipping And Trading S.A. [Member]
Related Party Transaction [Line Items]
Costs and Expenses, Related Party								500,000,000	$ 0
Fixed Assets [Member] | Argosy Insurance Company Limited [Member]
Related Party Transaction [Line Items]
Other Nonoperating Income (Expense)								$ 3,216,000

Revenue from contracts with c_2

Revenue from contracts with customers (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Deferred revenue			$ 7,317	$ (1,938)
Charter Hire Paid In Advance [Member]
Deferred revenue			22,642		$ 13,574
Charter Agreements With Varying Rates [Member]
Deferred revenue			10,724		$ 12,475
Voyage charters and contracts of affreightment [Member]
Revenue Not from Contract with Customer	$ 84,234	$ 119,487	209,184	185,714
Time Charter Hire Agreements [Member]
Operating Lease, Lease Income	$ 137,220	$ 97,212	$ 273,483	$ 180,689

Right-of-use assets and lease_3

Right-of-use assets and lease liabilities - Operating Leases (Table) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
July 1 to December 31, 2023	$ 12,970
2024	25,958
2025	15,332
2026	4,992
Minimum net lease payments	59,252
Less: present value discount	(8,815)
Total obligations under operating leases and financial liability (current and non-current portion)	$ 50,437

Right-of-use assets and lease_4

Right-of-use assets and lease liabilities (Details Narrative) - USD ($) $ in Thousands	2 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 28, 2023	Feb. 21, 2023	Feb. 14, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Long-term receivable of seller's credit				$ 23,558		$ 23,558		$ 23,307
Impairment charges						0	$ 0
Operating Lease, Right-of-Use Asset				47,748		47,748		58,706
Operating lease liability current				21,381		21,381		21,737
Operating lease liability non current				26,367		$ 26,367		36,969
Sublease vessels						five vessels	seven vessels
Sublease Income				19,856	$ 16,944	$ 49,540	$ 19,450
Purchase price				591,627		591,627
Operating Lease, Payments	$ 533
Finance Lease, Liability, Current				0		0		28,033
Finance Lease, Right-of-Use Asset, Amortization						306	$ 0
Finance Lease, Right-of-Use Asset, after Accumulated Amortization				0		0		$ 41,851
Archangel and Alaska [Member]
Property, Plant and Equipment [Line Items]
Sale Leaseback Transaction, Date								January 9, 2020
Sale Leaseback Transaction, Lease Terms								five-year
Sale Leaseback Transaction, Net Proceeds, Investing Activities								$ 61,070
Lease incentive receivable								$ 11,800
Long-term receivable of seller's credit				11,334		11,334
Operating Lease, Right-of-Use Asset				$ 13,709		$ 13,709
Operating Lease, Weighted Average Discount Rate, Percent				3.59%		3.59%
Operating Lease, Weighted Average Remaining Lease Term				1 year 6 months 10 days		1 year 6 months 10 days		2 years 7 days
Sakura Princess [Member]
Property, Plant and Equipment [Line Items]
Sale Leaseback Transaction, Date								December 21, 2020
Sale Leaseback Transaction, Lease Terms								five-year
Sale Leaseback Transaction, Net Proceeds, Investing Activities								$ 24,527
Lease incentive receivable								$ 4,425
Long-term receivable of seller's credit				$ 4,295		$ 4,295
Finance Lease, Liability									$ 5,148
Operating Lease, Right-of-Use Asset				$ 7,071		$ 7,071
Operating Lease, Weighted Average Discount Rate, Percent				2.54%		2.54%
Operating Lease, Weighted Average Remaining Lease Term				2 years 5 months 23 days		2 years 5 months 23 days		2 years 11 months 23 days
Operating lease liability current				$ 1,051		$ 1,051		$ 1,031
Operating lease liability non current				1,638		1,638		2,164
Operating Lease, Liability				2,689		2,689		$ 3,195
Arctic and Antarctic [Member]
Property, Plant and Equipment [Line Items]
Sale Leaseback Transaction, Date								June 21, 2021
Sale Leaseback Transaction, Lease Terms								five-year
Sale Leaseback Transaction, Net Proceeds, Investing Activities								$ 52,304
Lease incentive receivable								$ 8,415
Long-term receivable of seller's credit				7,929		7,929
Operating Lease, Right-of-Use Asset				$ 26,968		$ 26,968
Operating Lease, Weighted Average Discount Rate, Percent				2.98%		2.98%
Operating Lease, Weighted Average Remaining Lease Term				2 years 11 months 26 days		2 years 11 months 26 days		3 years 5 months 26 days
Eurochampion 2004 and Euronike [Member]
Property, Plant and Equipment [Line Items]
Sale Leaseback Transaction, Date								December 21, 2017
Sale Leaseback Transaction, Lease Terms								five-year sale and leaseback agreement for each of the two suezmaxes
Operating Lease, Weighted Average Discount Rate, Percent								3.90%
Operating Lease, Weighted Average Remaining Lease Term								18 days
Purchase price				$ 13,750		$ 13,750
Increased amount of lease liability	60
Finance Lease, Liability, Current	27,500							$ 28,033
Finance Lease, Right-of-Use Asset, Amortization	306
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	$ 41,545							$ 41,851
Eurochampion 2004 and Euronike [Member] | October 2022 Addendum [Member]
Property, Plant and Equipment [Line Items]
Sale Leaseback Transaction, Lease Terms								option to extend the charter period for one year and additional two purchase options to repurchase the vessels
Eurochampion 2004 [Member]
Property, Plant and Equipment [Line Items]
Sublease Income			$ 5,809
Property, Plant and Equipment, Additions						6,500
Euronike [Member]
Property, Plant and Equipment [Line Items]
Sublease Income		$ 4,601
Property, Plant and Equipment, Additions						$ 6,500

Vessels (Details Narrative)

Vessels (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Property, Plant and Equipment [Line Items]
Gain on sale of property, plant and equipment	$ 0	$ 299	$ 81,198	$ 299
Eurochampion 2004 and Euronike [Member]
Property, Plant and Equipment [Line Items]
Number of vessels acquired			two
Tenergy [member]
Property, Plant and Equipment [Line Items]
Vessel delivery date				January 12, 2022
Property, Plant and Equipment, Additions				$ 186,201
Handymax tankers (Afrodite, Artemis, Ariadne, Aris, Ajax and Apollon) and Handysize tankers (Arion, Amphitrite) [Member]
Property, Plant and Equipment [Line Items]
Gain on sale of property, plant and equipment			$ 81,198
Proteas and Inca [Member]
Property, Plant and Equipment [Line Items]
Gain on sale of property, plant and equipment				$ 299

Deferred charges and leasehol_2

Deferred charges and leasehold improvements (Details Narrative) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Deferred Costs	$ 38,626	$ 34,816
Leasehold Improvements, Gross	6,919	9,556
Archangel and Alaska [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements, Gross	1,703	2,271
Artict And Antartic [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements, Gross	3,807	5,058
Sakura Princess [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements, Gross	$ 1,409	1,777
Eurochampion 2004 and Euronike [Member]
Property, Plant and Equipment [Line Items]
Leasehold Improvements, Gross		$ 450

Long-term debt and other fina_3

Long-term debt and other financial liabilities(Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Loans	$ 1,382,619	$ 1,417,341
Less: Deferred finance costs, net	(7,943)	(7,354)
Total long-term debt	1,374,676	1,409,987
Less: Current portion of debt	(162,448)	(194,353)
Add: Deferred finance costs, current portion	2,495	2,272
Long-term debt, net of current portion and deferred finance costs	$ 1,214,723	$ 1,217,906

Long-term debt and other fina_4

Long-term debt and other financial liabilities - Weighted-Average Interest Rates (Table) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Disclosure [Abstract]
Weighted-average interest rates on the executed loans	6.65%	2.75%	6.54%	2.44%

Long-term debt and other fina_5

Long-term debt and other financial liabilities- Principal Payments (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
July to December 2023	$ 78,141
2024	180,777
2025	215,816
2026	224,628
2027	354,731
2028 and thereafter	328,526
Total	$ 1,382,619	$ 1,417,341

Long-term debt and other fina_6

Long-term debt and other financial liabilities - Other financial liabilities, net (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Other financial liabilities	$ 165,577
Less: Deferred finance costs, net	(7,943)	$ (7,354)
Less: Current portion of other financial liabilities	0	(28,033)
Add: Deferred finance costs, current portion	2,495	2,272
Financial Liabilities Net [Member]
Other financial liabilities	165,577	170,241
Less: Deferred finance costs, net	(2,167)	(2,351)
Total other financial liabilities	163,410	167,890
Less: Current portion of other financial liabilities	(9,328)	(9,328)
Add: Deferred finance costs, current portion	351	363
Other financial liabilities, net of current portion and deferred finance costs	$ 154,433	$ 158,925

Long-term debt and other fina_7

Long-term debt and other financial liabilities - Schedule of annual lease liability (Table) (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Debt Disclosure [Abstract]
July to December 2023	$ 4,665
2024	9,328
2025	9,328
2026	9,328
2027	9,328
2028 and thereafter	123,600
Total	$ 165,577

Long-term debt and other fina_8

Long-term debt and other financial liabilities (Details Narrative) - USD ($) $ in Thousands

1 Months Ended

3 Months Ended

4 Months Ended

5 Months Ended

6 Months Ended

Feb. 17, 2023

Jan. 30, 2023

Jan. 20, 2023

Apr. 03, 2023

Mar. 31, 2023

Mar. 29, 2023

Apr. 20, 2023

Jun. 14, 2023

Jun. 06, 2023

Jun. 30, 2023

Jun. 30, 2022

Dec. 31, 2022

Short-Term Debt [Line Items]

Loans Payable to Bank

$ 1,382,619

$ 1,417,341

Cash and cash equivalents

$ 529,217

$ 161,148

304,367

Number of loan agreements

twenty-nine

Debt Instrument, Covenant Compliance

The Company fulfilled its requirements in respect of the financial covenants of all of its loan agreements as at June 30, 2023

Purchase Obligation

$ 591,627

Afrodite, Ajax, Apollon, Ariadne, Aris and Artemis [Member]

Short-Term Debt [Line Items]

Prepaid amount

$ 41,750

Arion and Amphitrite [Member]

Short-Term Debt [Line Items]

Prepaid amount

$ 6,815

Minimum liquidity requirement [Member]

Short-Term Debt [Line Items]

Cash and cash equivalents

209,843

$ 156,837

Three Loan Agreements [Member]

Short-Term Debt [Line Items]

Restricted Cash and Cash Equivalents

$ 3,050

NeoEnergy, Andromeda And Decathlon [Member]

Short-Term Debt [Line Items]

Debt Instrument, Maturity Date, Description

five-year

Line of Credit Facility, Maximum Borrowing Capacity

$ 85,000

Long-Term Debt, Description

to the refinancing of the LNG carrier, Neo Energy, the handysize Andromeda and the suezmax tanker Decathlon.

Proceeds from Issuance of Debt

$ 72,274

Prepaid amount

42,085

Repayments of Debt

$ 24,000

Number of repayment installments

ten

Debt Instrument, Frequency of Periodic Payment

6,547.2

Balloon payment

$ 6,802

Sola TS and Oslo TS [Member]

Short-Term Debt [Line Items]

Debt Instrument, Maturity Date, Description

five-year

Line of Credit Facility, Maximum Borrowing Capacity

$ 72,150

Long-Term Debt, Description

to the refinancing of the aframax tankers, Sola TS and Oslo TS.

Proceeds from Issuance of Debt

72,150

Prepaid amount

$ 25,650

$ 25,973

Number of repayment installments

ten

Debt Instrument, Frequency of Periodic Payment

3,006

Balloon payment

$ 42,090

Marathon TS and Stavanger TS [Member]

Short-Term Debt [Line Items]

Debt Instrument, Maturity Date, Description

five-year

Line of Credit Facility, Maximum Borrowing Capacity

$ 70,000

Long-Term Debt, Description

to the refinancing of the aframax tankers, Marathon TS and Stavanger TS.

Proceeds from Issuance of Debt

$ 70,000

Prepaid amount

$ 63,364

Number of repayment installments

ten

Debt Instrument, Frequency of Periodic Payment

2,850

Balloon payment

$ 41,500

Asahi Princess Parthenon T S [Member]

Short-Term Debt [Line Items]

Debt Instrument, Maturity Date, Description

five-year

Line of Credit Facility, Maximum Borrowing Capacity

$ 49,000

Long-Term Debt, Description

to the refinancing of the aframax tankers, Asahi Princess and Parthenon TS.

Proceeds from Issuance of Debt

$ 49,000

Prepaid amount

$ 35,596

Number of repayment installments

ten

Debt Instrument, Frequency of Periodic Payment

3,062.5

Balloon payment

$ 18,375

Tenergy [Member]

Short-Term Debt [Line Items]

Number of repayment installments

forty

Debt Instrument, Frequency of Periodic Payment

quarterly

Sale Leaseback Transaction, Date

December 21, 2021

Sale Leaseback Transaction, Description of Asset(s)

a new ten-year sale and leaseback agreement for its under-construction LNG carrier, Tenergy

Vessel delivery date

January 12, 2022

Description of scope

the Company took delivery of the LNG carrier Tenergy and chartered it back on a bareboat basis

Debt Instrument, Periodic Payment

$ 2,332

Purchase Obligation

$ 83,955

All bank loans [Member]

Short-Term Debt [Line Items]

Loans Payable to Bank

$ 1,382,619

Debt Instrument, Payment Terms

These bank loans are payable in U.S. Dollars in

Debt Instrument, Description of Variable Rate Basis

Interest rates on the outstanding loans as of June 30, 2023, are based on SOFR plus a spread, except for eight loan agreements based on LIBOR plus a spread.

Interest and Finance Costs, n_3

Interest and Finance Costs, net (Table) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest And Finance Costs Net
Interest expense	$ 26,252	$ 10,986	$ 51,340	$ 20,847
Less: Interest capitalized	(1,166)	(270)	(2,090)	(498)
Interest expense, net	25,086	10,716	49,250	20,349
Bunkers swap, put and call options cash settlements	0	0	0	(9,912)
Amortization of deferred finance costs	874	756	2,083	1,992
Bank charges	67	81	136	85
Discount of long-term receivables	0	0	0	350
Amortization of deferred gain on termination of financial instruments	(1,313)	0	(2,611)	0
Interest expense on redeemable preferred shares	663	0	663	0
Change in fair value of non-hedging financial instruments	(1,043)	(561)	(673)	1,428
Net total	$ 24,334	$ 10,992	$ 48,848	$ 14,292

Interest and Finance Costs, n_4

Interest and Finance Costs, net (Details Narrative) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Mar. 22, 2023	Mar. 16, 2022
Amortization of Debt Discount (Premium)	$ 0	$ 0	$ 0	$ 350
Series D Preferred Stock [Member]
Redemption date			May 30, 2023
Redemption of preferred shares | shares			3,517,061
Interest expense			$ 663
Debt extinguishment guidance of ASC 470-50 [Member]
Written-off unamortized deferred finance cost			$ 430	579
Interest Rate Swap [Member]
Number of floating-to-fixed interest rate swaps					1	1
Fixed interest rate	3.82%		3.82%
Floating rate basis			six-month SOFR
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Description of Interest Rate Derivative Activities			In 2022, the Company discontinued ten of its cash flow hedge interest rate swaps through early termination agreements. The Company considered the forecasted transactions as still probable for seven of those interest rate swaps.
Amortization of deferred gain on termination of financial instruments	$ 1,313	0	$ 2,611	0
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Cash flow hedge gains/(losses)	$ 1,046	561	$ 673
Bunker Swap [Member] | Designated as Hedging Instrument [Member]
Number of floating-to-fixed interest rate swaps	4		4
Bunker Swap [Member] | Not Designated as Hedging Instrument [Member]
Cash flow hedge gain			$ 3
Interest Rate Cash Flow Hedge Asset at Fair Value	$ 3	$ 1,989	$ 3	1,989
Bunker Swaps [Member]
Cash received from swap terminations				$ 9,912

Stockholders_ Equity (Details N

Stockholders’ Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended					4 Months Ended	5 Months Ended	6 Months Ended			7 Months Ended			8 Months Ended			9 Months Ended	12 Months Ended
	Jan. 30, 2023	Feb. 28, 2023	Jun. 30, 2023	Mar. 16, 2023	Jun. 30, 2022	Apr. 14, 2022	Apr. 12, 2022	May 01, 2023	May 30, 2023	Jun. 30, 2023	Jun. 15, 2023	Jun. 30, 2022	Dec. 31, 2023	Jul. 27, 2023	Jul. 25, 2023	Sep. 07, 2023	Sep. 01, 2023	Aug. 25, 2023	Sep. 30, 2022	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Apr. 15, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Issued During Period, Shares, New Issues										0
Proceeds from Issuance of Preferred Stock and Preference Stock										$ 0		$ 192
Common Stock, Dividends, Per Share, Declared										$ 0.30
Common Stock, Dividends, Per Share, Cash Paid										$ 0.30		$ 0.10
Dividends, Common Stock, Cash										$ 8,856
Deemed dividend on preferred shares			$ 3,256		$ 0					3,256		$ 0
Preferred Stock, Redemption Amount			$ 87,927							$ 87,927												$ 0
Series D Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Issued During Period, Shares, New Issues												165
Preferred Stock, Dividends, Per Share, Cash Paid										$ 0.243056
Dividends Payable, Date to be Paid										Jul. 07, 2023
Redemption date										May 30, 2023
Stock Redeemed or Called During Period, Shares										3,517,061
Liquidation preference			$ 25							$ 25
Deemed dividend on preferred shares										$ 3,256
Preferred Stock, Shares Outstanding			3,517,061							3,517,061												3,517,061
Series E Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Issued During Period, Shares, New Issues												2,239
Preferred Stock, Dividends, Per Share, Cash Paid		$ 0.57812							$ 0.57812									$ 0.57812
Dividends, Preferred Stock, Cash										$ 5,486
Preferred Stock, Shares Outstanding			4,745,947							4,745,947												4,745,947
Series F Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Issued During Period, Shares, New Issues												5,888
Preferred Stock, Dividends, Per Share, Cash Paid														$ 0.59375
Preferred Stock, Shares Outstanding			6,747,147							6,747,147												6,747,147
Series D, E and F Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Proceeds from Issuance of Preferred Stock and Preference Stock												$ 33,621
9.50% Series F Preferred Shares [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 0.59375							$ 0.59375
Dividends, Preferred Stock, Cash										$ 8,012
8.75% Series D Preferred Shares [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividends, Per Share, Cash Paid		$ 0.54687							$ 0.54687
Dividends, Preferred Stock, Cash										$ 3,848
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividends, Per Share, Cash Paid																$ 0.40
Common Stock, Dividends, Per Share, Declared				$ 0.60
Common Stock, Dividends, Per Share, Cash Paid						$ 0.10					$ 0.30									$ 0.30
Dividends, Common Stock, Cash											$ 8,856		$ 8,850
Dividends Payable, Date to be Paid						Jul. 20, 2022
Preferred Stock, Convertible, Shares Issuable																			306,190
Series G Convertible Preferred Shares [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Redeemed or Called During Period, Shares																			459,286
Preferred Stock, Shares Outstanding			0		459,286					0		459,286										0
Series B Cumulative Redeemable Perpetual Preferred Shares [Member] | Shyris Shipping Company S.A. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividends, Per Share, Cash Paid										$ 0.001
Dividends, Preferred Stock, Cash										$ 756		$ 865
Stock Redeemed or Called During Period, Shares							75,000			100,000					500,000		1,438,841
Preferred Stock, Redemption Terms										at a rate of 7.50% per annum, payable in arrears on the 1st day of March and September of each year
Preferred Stock, Redemption Amount			$ 1,000							$ 1,000					$ 5,000		$ 14,388						$ 750
Shyris Shipping Preferred Shares [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Liquidation Preference Per Share			$ 10							$ 10
Preferred Stock, Redemption Amount																					$ 22,889
Shyris Shipping Preferred Shares [Member] | Minimum [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Conversion Basis										112.5
Shyris Shipping Preferred Shares [Member] | Maximum [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Conversion Basis										100
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Issued During Period, Shares, New Issues												4,064,266

Accumulated other comprehensi_2

Accumulated other comprehensive income (Details Narrative) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Equity [Abstract]
Unrealized income	$ 2,628	$ 21,176

Earnings (Loss) per Common Shar

Earnings (Loss) per Common Share (Table) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator
Net income attributable to Tsakos Energy Navigation Limited	$ 60,641	$ 46,225	$ 237,196	$ 51,743
Preferred share dividends Series D	(1,924)	(1,924)	(3,848)	(3,846)
Preferred share dividends Series E	(2,743)	(2,743)	(5,486)	(5,488)
Preferred share dividends Series F	(4,006)	(4,006)	(8,012)	(8,012)
Preferred share dividends, Convertible Series G	0	(31)	0	(31)
Undistributed income to Series G participants	0	(370)	0	(353)
Deemed dividend on redeemable Series D preferred shares	(3,256)	0	(3,256)	0
Net income attributable to common stockholders of Tsakos Energy Navigation Limited	48,712	37,151	216,594	34,013
Preferred share dividends, Convertible Series G	0	31	0	31
Undistributed income to Series G participants	0	370	0	353
Net income attributable to common stockholders of Tsakos Energy Navigation Limited, for dilution purposes	$ 48,712	$ 37,552	$ 216,594	$ 34,397
Denominator
Weighted average number of shares, basic	29,505,603	28,398,404	29,505,603	26,992,886
Weighted average number of shares, diluted	29,505,603	28,704,595	29,505,603	27,299,077
Earnings per share, basic attributable to Tsakos Energy Navigation Limited	$ 1.65	$ 1.31	$ 7.34	$ 1.26
Earnings per share, diluted attributable to Tsakos Energy Navigation Limited	$ 1.65	$ 1.31	$ 7.34	$ 1.26

Commitments and Contingencies -

Commitments and Contingencies - Minimum Future Charter Revenue (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
July 1 to December 31, 2023	$ 234,815
2024	334,769
2025	201,580
2026	160,187
2027	146,001
2028 to 2038	454,963
Minimum charter revenues	$ 1,532,315

Commitments and Contingencies_2

Commitments and Contingencies (Details Narrative) $ in Thousands	Jun. 30, 2023 USD ($)
Property, Plant and Equipment [Line Items]
Number of vessels under construction.	8
Purchase Obligation	$ 591,627
Eight Vessels Under Construction [Member]
Property, Plant and Equipment [Line Items]
Payable in 2023	144,891
Payable in 2024	180,380
Payable in 2025	$ 266,356

Financial Instruments - Schedul

Financial Instruments - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Cash and cash equivalents - Carrying Amount	$ 529,217	$ 304,367	$ 161,148
Cash and cash equivalents - Fair Value	529,217	304,367
Restricted cash - Carrying Amount	4,877	5,072	$ 10,648
Restricted cash - Fair Value	4,877	5,072
Margin deposits - Carrying Amount	4,270	4,270
Margin deposits - Fair Value	4,270	4,270
Long-term receivable (including short-term portion) - Carrying Amount	23,558	23,307
Long-term receivable (including short-term portion) - Fair Value	23,558	23,307
Redemption of Series D Preferred Shares - Carrying Amount	(87,927)	0
Redemption of Series D Preferred Shares - Fair Value	(87,927)	0
Debt and other financial liabilities - Carrying Amount	(1,548,196)	(1,587,582)
Debt and other financial liabilities - Fair Value	$ (1,548,196)	$ (1,587,582)

Financial Instruments - Sched_2

Financial Instruments - Schedule of Derivative Instruments - Statements of Financial Position Location (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liability, Noncurrent	$ 178	$ 5
Total Derivatives [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Assets	912	193
Total Liabilities	239	5
Designated as Hedging Instrument [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Assets	0	193
Total Liabilities	0	5
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset, Current	0	193
Derivative Liability, Current	0	0
Derivative Asset, Noncurrent	0	0
Derivative Liability, Noncurrent	0	5
Not Designated as Hedging Instrument [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Assets	912	0
Total Liabilities	239	0
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset, Current	854	0
Derivative Liability, Current	0	0
Derivative Asset, Noncurrent	0	0
Derivative Liability, Noncurrent	178	0
Not Designated as Hedging Instrument [Member] | Bunker Swaps [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Asset, Noncurrent	58	0
Derivative Liability, Noncurrent	$ 61	$ 0

Financial Instruments - Gain (L

Financial Instruments - Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivative (Effective Portion) (Table) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Effect on the consolidated statements	$ (1,190)	$ 4,802	$ (2,628)	$ 21,176
Gain (Loss) Recognized in Accumulated Statement of Other Comprehensive Income (Loss) on Derivative (Effective Portion) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Interest rate swaps	0	7,376	(132)	26,037
Reclassification due to de-designations to interest and finance costs, net [Member}
Fair Value, Option, Quantitative Disclosures [Line Items]
Effect on the consolidated statements	(1,313)	(2,623)	(2,611)	(4,959)
Reclassification to deprecation expense [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Effect on the consolidated statements	123	49	115	98
Total [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Effect on the consolidated statements	$ (1,190)	$ 4,802	$ 2,628	$ 21,176

Financial Instruments - Sched_3

Financial Instruments - Schedule of Derivatives Not Designated as Hedging Instruments - Net Effect on the Statement Of Comprehensive Income (Table) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Total	$ 1,043	$ 561	$ 673	$ (1,428)
Total				8,484
Reclassification due to de-designations to interest and finance costs, net [Member}
Fair Value, Option, Quantitative Disclosures [Line Items]
Interest rate swaps	1,046	561	676	561
Bunker swaps	$ (3)	$ 0	$ (3)	$ 7,923

Financial Instruments - Sched_4

Financial Instruments - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Interest rate swaps	$ 676	$ 188
Bunker swaps	(3)	0
Fair Value, Net Asset (Liability), Total	$ 673	$ 188

Financial Instruments (Details

Financial Instruments (Details Narrative) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Cash collateral	$ 4,270	$ 4,270

Subsequent Events (Details Narr

Subsequent Events (Details Narrative) - USD ($)	2 Months Ended	5 Months Ended	7 Months Ended		8 Months Ended			9 Months Ended
	Feb. 28, 2023	May 30, 2023	Jul. 27, 2023	Jul. 25, 2023	Sep. 07, 2023	Sep. 01, 2023	Aug. 25, 2023	Sep. 21, 2023
Aframax tanker Njord DF [Member]
Vessel delivery date								September 21, 2023
Shyris Shipping Preferred Shares [Member]
Dividends, Cash				$ 150,000		$ 539,600
Series F Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid			$ 0.59375
Preferred Stock, Dividend Rate, Percentage			9.50%
Series E Preferred Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid	$ 0.57812	$ 0.57812					$ 0.57812
Preferred Stock, Dividend Rate, Percentage							9.25%
Common Stock [Member]
Preferred Stock, Dividends, Per Share, Cash Paid					$ 0.40