XML 12 R39.htm IDEA: XBRL DOCUMENT

Equity Method Investments Narrative (Details) (USD $)	3 Months Ended					3 Months Ended
Equity Method Investments Narrative (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 OceanGeo [Member]	Jan. 31, 2014 OceanGeo [Member]	Dec. 31, 2013 OceanGeo [Member]	Mar. 31, 2014 INOVA Geophysical [Member]	Mar. 31, 2013 INOVA Geophysical [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity method investment						49.00%
Working capital loan to investee				$ 3,700,000	$ 15,300,000
Equity in earnings (losses) of investments	$ (1,688,000)	$ 1,116,000	$ 738,000			$ (2,426,000)	$ 1,900,000

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References+ Details