NEWBUILDINGS - Movement in Newbuilding Balance (Details) $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($)
Movement In Newbuilding Balance [Roll Forward]
Balance at December 31, 2015	$ 338,614
Installments and newbuilding supervision fees	205,972
Interest capitalized	2,200
Transfers to Vessels and Equipment	(353,002)
Balance at June 30, 2016	$ 193,784

Amount of increase (decrease) of physical assets used in the normal conduct of business and not intended for resale, from reclassification, impairment, donation, or changes classified as other. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230

Name:	us-gaap_PropertyPlantAndEquipmentTransfersAndChanges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration