Segment and Geographic Information - Summary of Total Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	$ 313,216	$ 435,088
North America [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	145,013	225,847
Europe [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	61,329	84,392
Middle East [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	72,984	75,390
Latin America [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	23,891	35,349
Other [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	9,999	14,110
Operating segments [Member] | E & P Technology & Services [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	159,965	243,067
Operating segments [Member] | E & P Operations Optimization [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	76,992	98,161
Operating segments [Member] | Ocean Bottom Services [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	29,908	35,792
Support and other [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets by geographic area	$ 46,351	$ 58,068