VESSELS, OTHER PROPERTY AND DEFERRED DRYDOCK (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property

Drydocking activity for the three years ended December 31, 2017 is summarized as follows:

	2017			2016			2015
Balance at January 1	$	31,172		$	58,166		$	33,087
Additions	8,787			2,626			45,046
Sub-total	39,959			60,792			78,133
Drydock amortization	(16,045		)	(25,747		)	(19,967		)
Impairments	—			(3,873		)	—
Balance at December 31	$	23,914		$	31,172		$	58,166

Vessel activity, excluding construction in progress, for the three years ended December 31, 2017 is summarized as follows: 

	Vessel Cost			Accumulated Depreciation			Net Book Value
Balance at December 31, 2014	$	1,156,064		$	(262,028	)	$	894,036
Vessel additions	53			—
Depreciation	—			(51,364		)
Balance at December 31, 2015	1,156,117			(313,392		)	842,725
Impairment	(264,095		)	163,563
Depreciation	—			(58,489		)
Balance at December 31, 2016	892,022			(208,318		)	683,704
Impairment	(6,957		)	1,079
Depreciation	—			(37,681		)
Disposals	(35,352		)	27,287
Balance at December 31, 2017	$	849,713		$	(217,633	)	$	632,080

Vessels and other property consist of the following: 

	Years Ended December 31,
	2017			2016
Vessels, at cost	$	849,713		$	892,022
Accumulated depreciation	(217,633		)	(208,318		)
Vessels, net	632,080			683,704
Other property, at cost	5,630			5,619
Accumulated depreciation and amortization	(5,201		)	(4,855		)
Other property, net	429			764
Total vessels and other property	$	632,509		$	684,468