XML 29 R20.htm IDEA: XBRL DOCUMENT v3.5.0.2

VESSELS (Tables)

6 Months Ended

Jun. 30, 2016

VESSELS [Abstract]

Vessels, net

The estimated useful life of a vessel is 25 years from the date the vessel is delivered from the shipyard.

All figures in USD ‘000		June 30, 2016				December 31, 2015
Vessels			1,611,436				1,530,245
Drydocking			86,161				82,695
Total			1,697,597				1,612,940
Less Accumulated Depreciation			(693,251	)			(650,255	)
Vessels, net			1,004,346				962,685

X

- Definition

Tabular disclosure of net book value, accumulated depreciation, and depreciation expense of vessels that are used in the normal conduct of business and not intended for resale.

+ References

No definition available.

+ Details

Name:	nat_VesselsNetTableTextBlock
Namespace Prefix:	nat_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration