Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions BGP Inc. (“BGP”) owned approximately 14.5% of the Company’s outstanding common stock as of March 31, 2014. For the three months ended March 31, 2014 and 2013, the Company recorded revenues from BGP of $2.0 million and $0.9 million, respectively. Total receivables due from BGP were $2.4 million at March 31, 2014. In July 2013, the Company agreed to lend up to $10.0 million to INOVA Geophysical, and received a promissory note issued by INOVA Geophysical to the order of the Company, which was originally scheduled to mature on September 30, 2013. The maturity date of the promissory note has since been extended to June 30, 2014. The loan was made by the Company to support certain short-term working capital needs of INOVA Geophysical. The indebtedness under the note accrues interest at an annual rate equal to the London Interbank Offered Rate plus 650 basis points. In 2013, the Company advanced the full principal amount of $10.0 million to INOVA Geophysical under the promissory note. INOVA Geophysical has repaid a total of $6.0 million, of which $4.0 million remains outstanding at March 31, 2014.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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