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v3.22.0.1

Preferred, Common Shares and Additional paid in capital (Details Narrative) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 03, 2019 shares | Jan. 26, 2021 shares | Jan. 31, 2019 shares | Mar. 31, 2021 $ / shares | Jul. 01, 2021 USD ($) | Jun. 30, 2021 $ / shares | Jun. 24, 2021 $ / shares shares | Sep. 30, 2021 $ / shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 USD ($) $ / shares shares | Aug. 05, 2021 USD ($) | Nov. 29, 2018 USD ($)
Purchase of treasury stock | $ |  |  |  |  |  |  |  |  | $ 10,278,000 |  | $ 20,430,000 |  |  |
Cash dividend | $ |  |  |  |  |  |  |  |  | 230,473,000 | $ 4,804,000 | $ 4,804,000 |  |  |
Dividend per share | $ / shares |  |  |  | $ 0.30 |  | $ 0.70 |  | $ 1.25 |  | $ 0.05 | $ 0.05 |  |  |
Payments of dividends outstanding | $ |  |  |  |  |  |  |  |  | $ 233,000 |  |  |  |  |
Sales Agents [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of offering programs |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Offering price per program | $ |  |  |  |  | $ 75,000,000 |  |  |  |  |  |  |  |  |
Eneti Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued as part of the consideration |  |  |  |  |  |  |  |  | 3,000,000 |  |  |  |  |
Star Marianne And Star Janni [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued as part of the consideration |  |  | 999,336 |  |  |  |  |  |  |  |  |  |  |
Delphin Vessels [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued as part of the consideration |  |  |  |  |  |  |  |  |  |  | 4,503,370 |  |  |
Number of vessels acquired |  |  |  |  |  |  |  |  |  |  | 11 |  |  |
Star Marilena, Star Bueno and Star Borneo [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued as part of the consideration |  | 2,100,000 |  |  |  |  |  |  | 2,100,000 |  |  |  |  |
Secondary Offering [Member] | Oaktree Capital Management L.P. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold |  |  |  |  |  |  | 2,382,775 |  |  |  |  |  |  |
Price per share, sold | $ / shares |  |  |  |  |  |  | $ 22.00 |  |  |  |  |  |  |
Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000.0
Share Repurchase Program [Member] | Open Market Transactions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares repurchased |  |  |  |  |  |  |  |  |  |  | 1,579,195 | 341,363 |  |
Shares cancelled | 341,363 |  |  |  |  |  |  |  |  |  | 1,579,195 |  |  |
Common shares repurchased, Average price per Share | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 7.49 | $ 9.17 |  |
Purchase of treasury stock | $ |  |  |  |  |  |  |  |  |  |  | $ 11,831,000 | $ 3,145,000 |  |
Share Repurchase Program [Member] | Private Transaction [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares repurchased |  |  |  |  |  |  |  |  |  |  | 1,020,000 |  |  |
Shares cancelled |  |  |  |  |  |  |  |  |  |  | 1,020,000 |  |  |
Common shares repurchased, Average price per Share | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 8.40 |  |  |
Purchase of treasury stock | $ |  |  |  |  |  |  |  |  |  |  | $ 8,600,000 |  |  |
New Share Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000.0 |
New Share Repurchase Program [Member] | Open Market Transactions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares repurchased |  |  |  |  |  |  |  |  | 466,268 |  |  |  |  |
Shares cancelled |  |  |  |  |  |  |  |  | 466,268 |  |  |  |  |
Common shares repurchased, Average price per Share | $ / shares |  |  |  |  |  |  |  |  | $ 22.01 |  |  |  |  |
Purchase of treasury stock | $ |  |  |  |  |  |  |  |  | $ 10,300,000 |  |  |  |  |
Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized |  |  |  |  |  |  |  |  | 25,000,000 | 25,000,000 |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ / shares |  |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Shares - Shares Authorized |  |  |  |  |  |  |  |  | 300,000,000 | 300,000,000 |  |  |  |
Common Shares - Par Value | $ / shares |  |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |  |
Shares cancelled |  |  |  |  |  |  |  |  | (466,268) |  | (2,940,558) |  |  |
Purchase of treasury stock | $ |  |  |  |  |  |  |  |  | $ 4,000 |  | $ 29,000 |  |  |
Stock issued during period, share based compensation |  |  |  |  |  |  |  |  | 521,310 | 1,073,490 | 883,700 |  |  |
Treasury Stock, Shares, Retired |  |  |  |  |  |  |  |  | 6,971 |  |  |  |  |

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