REVENUE RECOGNITION (Tables)

12 Months Ended

Dec. 31, 2016

Revenue Recognition [Abstract]

Percentage of Revenues by Contract Type

The percentage of our revenues by contract type for each of the years ended December 31 was as follows:

	2016			2015			2014
Fixed-price		92	%		93	%		87	%
Unit-basis and other		8			7			13
		100	%		100	%		100	%