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Vessels and Other Fixed Assets, Net (Details) $ in Thousands | 2 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended | 7 Months Ended | 8 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 13, 2015 USD ($) | Feb. 27, 2015 USD ($) | Mar. 16, 2016 | May. 27, 2015 USD ($) | Jul. 15, 2015 USD ($) | Jul. 11, 2014 USD ($) shares | Aug. 07, 2015 USD ($) | Jul. 22, 2015 USD ($) | Aug. 19, 2014 USD ($) shares | Oct. 09, 2015 USD ($) | Dec. 31, 2015 USD ($) shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) | Dec. 31, 2016
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  | $ 473,917 | $ 518,447 | $ 127,814 |
Loss on sale of vessel |  |  |  |  |  |  |  |  |  |  | 20,585 | 0 | 87 |
Impairment loss of disposed assets |  |  |  |  |  |  |  |  |  |  | 219,400 |  |  |
Impairment loss of assets held for use |  |  |  |  |  |  |  |  |  |  | 102,578 |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  | 321,978 | 0 | 0 |
Amortization of deferred gain |  |  |  |  |  |  |  |  |  |  | 22 | 0 | 0 |
Advances from sale of vessel |  |  |  |  |  |  |  |  |  |  | $ 0 | 1,100 |  |
Star Sigma |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal date |  |  |  |  |  |  |  |  |  |  | Apr. 10, 2013 |  |  |
Loss on sale of vessel |  |  |  |  |  |  |  |  |  |  |  |  | $ (87) |
Star Challenger |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | December 12, 2013 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 61,462 |  |  |
Star Fighter |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | December 30, 2013 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 61,455 |  |  |
Star Vega |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | February 13, 2014 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 98,681 |  |  |
Star Sirius |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | March 7, 2014 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 98,681 |  |  |
Star Sirius and Star Vega |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross daily charter rate |  |  |  |  |  |  |  |  |  |  | $ 15 |  |  |
Merger and Pappas Transaction |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels acquired |  |  |  |  |  | 13 |  |  |  |  |  |  |  |
Fair value of vessels acquired |  |  |  |  |  | $ 426,000 |  |  |  |  |  |  |  |
Peloreus |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | July 22, 2014 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 182,496 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  |  | 34,625 |  |
Leviathan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | September 19, 2014 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 182,511 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  |  | 34,625 |  |
Excel Vessels |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contracted purchase price |  |  |  |  |  |  |  |  |  |  |  | $ 501,535 |  |
Number of vessels acquired |  |  |  |  |  |  |  |  | 34 |  |  |  |  |
Number of vessels delivered |  |  |  |  |  |  |  |  |  |  | 6 | 28 |  |
Shares to acquire vessels | shares |  |  |  |  |  |  |  |  | 29,917,312 |  | 4,257,887 | 25,659,425 |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  | $ 288,391 |  | $ 39,475 | $ 248,751 |  |
Held in escrow for Heron vessels |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares to acquire vessels | shares |  |  |  |  |  | 2,115,706 |  |  |  |  |  |  |  |
Heron vessels |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | December 5, 2014 |  |  |
Number of vessels acquired |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  | $ 25,000 |  |  |  |  |  |  |  |
Value of common shares issued for acquisition of Heron Vessels |  |  |  |  |  | $ 25,080 |  |  |  |  |  |  |  |
Star Kim |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal date |  |  |  |  |  |  |  |  |  |  | Jan. 21, 2015 |  |  |
Number of vessels sold |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Advances from sale of vessel |  |  |  |  |  |  |  |  |  |  |  | 1,100 |  |
Indomitable |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | January 8, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 182,476 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  |  | $ 34,942 |  |
Honey Badger |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | February 27, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 61,320 |  |  |
Payments to acquire property plant and equipment |  | $ 19,422 |  |  |  |  |  |  |  |  |  |  |  |
Wolverine |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | February 27, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 61,292 |  |  |
Payments to acquire property plant and equipment |  | $ 19,422 |  |  |  |  |  |  |  |  |  |  |  |
Idee Fixe |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | March 25, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 63,458 |  |  |
Roberta |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | March 31, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 63,426 |  |  |
Laura |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | April 7, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 63,399 |  |  |
Kaley |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | June 26, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 63,283 |  |  |
Gargantua |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | April 2, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 209,529 |  |  |
Goliath |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | July 15, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 209,537 |  |  |
Maharaj |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | July 15, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 209,472 |  |  |
Gargantua, Goliath and Maharaj |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  | $ 113,046 |  |  |  |  |  |  |  |  |
Deep Blue |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | May 27, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 182,608 |  |  |
Payments to acquire property plant and equipment |  |  |  | $ 34,982 |  |  |  |  |  |  |  |  |  |
Star Aquarius |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | July 22, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 60,916 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  | $ 20,359 |  |  |  |  |  |
Star Pisces |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | August 7, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 60,916 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  | $ 20,351 |  |  |  |  |  |  |
Star Antares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Delivery date |  |  |  |  |  |  |  |  |  |  | October 9, 2015 |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 61,258 |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  | $ 19,770 |  |  |  |
Vessels sales agreements in 2015 and 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels sold |  |  |  |  |  |  |  |  |  |  | 16 |  |  |
Number of vessels delivered |  |  |  |  |  |  |  |  |  |  | 12 |  |  |
Maiden Voyage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
DWT |  |  |  |  |  |  |  |  |  |  |  | 58,722 |  |
Leasing arrangements, Term of time charter contract |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |
Sale Leaseback Transaction, Date |  |  |  |  |  |  |  |  |  |  | September 15, 2015 |  |  |
Sale Leaseback Transaction, Deferred Gain, Gross |  |  |  |  |  |  |  |  |  |  | $ 148 |  |  |
Sale Leaseback Transaction, Deferred Gain, Net |  |  |  |  |  |  |  |  |  |  | 126 |  |  |
Amortization of deferred gain |  |  |  |  |  |  |  |  |  |  | $ 22 |  |  |
New Yangzijiang Vessels |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
DWT |  |  |  |  |  |  |  |  |  |  | 64,000 |  |  |
Payments to acquire equipment on lease |  |  |  |  |  |  |  |  |  |  | $ 20,680 |  |  |
Proceeds from Long-term Capital Lease Obligations |  |  |  |  |  |  |  |  |  |  | 20,680 |  |  |
Vessel purchase price obligation |  |  |  |  |  |  |  |  |  |  | $ 6,000 |  |  |
Capital leased assets, Number of vessels |  |  |  |  |  |  |  |  |  |  | 4 |  |  |
Interest and finance costs |  |  |  |  |  |  |  |  |  |  | $ 3,088 |  |  |
Capital leased assets, Net book value |  |  |  |  |  |  |  |  |  |  | 120,992 |  |  |
Accumulated amortization |  |  |  |  |  |  |  |  |  |  | 3,056 |  |  |
Deutsche Bank AG $85,000 Facility | Peloreus |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  |  |  |  |  | $ 32,500 |  |
Deutsche Bank AG $85,000 Facility | Leviathan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  |  |  |  |  | 32,500 |  |
Heron Vessels Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  |  |  |  |  | 25,311 |  |
BNP $32,480 Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  |  |  |  |  | 32,480 |  |
Sinosure Facility | Honey Badger and Wolverine |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down | $ 38,162 |  |  |  |  |  |  |  |  |  |  |  |  |
Sinosure Facility | Star Antares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  |  |  | $ 16,738 |  |  |  |
DNB-SEB-CEXIM $227,500 Facility | Gargantua, Goliath and Maharaj |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  | $ 93,000 |  |  |  |  |  |  |  |  |
DVB $31,000 Deep Blue Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  | $ 28,680 |  |  |  |  |  |  |  |  |  |
NIBC $32,000 Facility | Star Aquarius |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  |  | $ 15,237 |  |  |  |  |  |
NIBC $32,000 Facility | Star Pisces |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount drawn down |  |  |  |  |  |  | $ 15,237 |  |  |  |  |  |  |
Subsequent Event | Deep Blue |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal date |  |  | Mar. 16, 2016 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | Vessels sales agreements in 2015 and 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels delivered |  |  |  |  |  |  |  |  |  |  |  |  |  | 4
Possibility of a sale of certain additional operating vessels and newbuildings |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels' net book value |  |  |  |  |  |  |  |  |  |  | $ 119,591 |  |  |
Existing cash | Peloreus |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  |  | 2,125 |  |
Existing cash | Leviathan |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vessels [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire property plant and equipment |  |  |  |  |  |  |  |  |  |  |  | $ 2,125 |  |

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