Intangible Assets/Liabilities Other Than Goodwill (Table) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Trade name    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost $ 100,420 $ 100,420
Accumulated Amortization (41,303) (37,401)
Write off 0 0
Net Book Value 59,117 63,019
Port terminal operating rights    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost 53,152 53,152
Accumulated Amortization (10,162) (9,456)
Write off 0 0
Net Book Value 42,990 43,696
Customer relationships    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost 35,490 35,490
Accumulated Amortization (15,971) (14,196)
Write off 0 0
Net Book Value 19,519 21,294
Favorable lease terms    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost [1] 82,485 158,179
Accumulated Amortization [1] (6,359) (60,037)
Write off [1] (70,937) (75,694)
Net Book Value [1] 5,189 22,448
Total Intangible assets    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost 271,547 347,241
Accumulated Amortization (73,795) (121,090)
Write off (70,937) (75,694)
Net Book Value 126,815 150,457
Unfavorable lease terms    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost (24,721) (56,419)
Accumulated Amortization [2] 0 17,195
Write off [2] 24,721 31,698
Net Book Value 0 (7,526)
Total    
Acquired Finite Lived Intangible Assets [Line Items]    
Acquisition Cost 246,826 290,822
Accumulated Amortization (73,795) (103,895)
Write off (46,216) (43,996)
Net Book Value $ 126,815 $ 142,931
[1] As of December 31, 2016 and 2015, intangible assets associated with the favorable lease terms included an amount of $1,180 and $10,575, respectively related to purchase options for the vessels (see also Note 2(n)). During the year ended December 31, 2016, acquisition costs of $70,937 and accumulated amortization of $57,930 of favorable lease terms were written off resulting in a loss of $13,007. This write-off resulted from the early redelivery of one vessel. During the year ended December 31, 2015, acquisition costs $75,694, of fully amortized favorable lease terms were written off, as a result of early redeliveries of vessels.
[2] As of December 31, 2016 and 2015, the intangible liability associated with the unfavorable lease terms included an amount of $0 and $(467), respectively, related to purchase options held by third parties (see also Note 2(n)). During the year ended December 31, 2016, acquisition costs of $24,721 and accumulated amortization of $17,406 of unfavorable lease terms were written off resulting in an income of $7,315. This write-off resulted from the early redelivery of one vessel. During the year ended December 31, 2015, $31,698 of acquisition cost of unfavorable lease terms were written off. During the year ended December 31, 2015, acquisition cost and accumulated amortization of $64,609, of fully amortized unfavorable lease terms were written off. These write-offs resulted from early redelivery of vessels. As of December 31, 2016 and 2015, no purchase options held by third parties have been exercised.