Vessels, Net (Tables)

12 Months Ended

Dec. 31, 2016

VESSELS, NET [Abstract]

Vessels, Net

Vessels	Cost	Accumulated Depreciation	Net Book Value
Balance December 31, 2014	$      1,358,348	$         (218,922)	$      1,139,426
Additions	147,840	(57,217)	90,623
Balance December 31, 2015	$      1,506,188	$         (276,139)	$      1,230,049
Additions	15,341	(55,983)	(40,642)
Vessel impairment losses	(42,231)	15,030	(27,201)
Transfer to vessel held for sale (see Note 7)	(125,000)	—	(125,000)
Balance December 31, 2016	$      1,354,298	$         (317,092)	$      1,037,206