Income Taxes	3 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company maintains a valuation allowance for substantially all of its deferred tax assets. The valuation allowance is calculated in accordance with the provisions of the Financial Accounting Standards Board’s (“FASB”) Accounting Standard Codification Topic 740 “Income Taxes,” which requires that a valuation allowance be established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. In the event the Company’s expectations of future operating results change, the valuation allowance may need to be adjusted upward or downward. As of March 31, 2014, the Company’s unreserved U.S. deferred tax assets totaled $3.8 million. These existing unreserved deferred tax assets are currently considered to be “more likely than not” realized. The Company’s effective tax rates for the three months ended March 31, 2014 and 2013 were 6.4% and 40.0%, respectively. The Company’s effective tax rate for the first quarter of 2014 was positively impacted by the change in valuation allowance related to the reduction of the legal contingency reserve, offset by the impact of pre-tax losses of OceanGeo within certain jurisdictions for which it could not recognize a tax benefit to offset its tax expenses. Excluding the change in valuation allowance, the Company’s effective tax rate for the first quarter of 2014 was 43.3%. The Company has approximately $2.2 million of unrecognized tax benefits and does not expect to recognize significant increases in unrecognized tax benefits during the next 12-month period. Interest and penalties, if any, related to unrecognized tax benefits are recorded in income tax expense. As of March 31, 2014, the Company’s U.S. federal tax returns for 2007 and subsequent years remain subject to examination by tax authorities. The Company is no longer subject to U.S. Internal Revenue Service (“IRS”) examination for periods prior to 2007, although carryforward attributes that were generated prior to 2007 may still be adjusted upon examination by the IRS if they either have been or will be used in an open year. In the Company’s foreign tax jurisdictions, tax returns for 2010 and subsequent years generally remain open to examination.

Income Taxes

3 Months Ended

Mar. 31, 2014

The Company maintains a valuation allowance for substantially all of its deferred tax assets. The valuation allowance is calculated in accordance with the provisions of the Financial Accounting Standards Board’s (“FASB”) Accounting Standard Codification Topic 740 “Income Taxes,” which requires that a valuation allowance be established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. In the event the Company’s expectations of future operating results change, the valuation allowance may need to be adjusted upward or downward. As of March 31, 2014, the Company’s unreserved U.S. deferred tax assets totaled $3.8 million. These existing unreserved deferred tax assets are currently considered to be “more likely than not” realized.

The Company’s effective tax rates for the three months ended March 31, 2014 and 2013 were 6.4% and 40.0%, respectively. The Company’s effective tax rate for the first quarter of 2014 was positively impacted by the change in valuation allowance related to the reduction of the legal contingency reserve, offset by the impact of pre-tax losses of OceanGeo within certain jurisdictions for which it could not recognize a tax benefit to offset its tax expenses. Excluding the change in valuation allowance, the Company’s effective tax rate for the first quarter of 2014 was 43.3%.

The Company has approximately $2.2 million of unrecognized tax benefits and does not expect to recognize significant increases in unrecognized tax benefits during the next 12-month period. Interest and penalties, if any, related to unrecognized tax benefits are recorded in income tax expense.

As of March 31, 2014, the Company’s U.S. federal tax returns for 2007 and subsequent years remain subject to examination by tax authorities. The Company is no longer subject to U.S. Internal Revenue Service (“IRS”) examination for periods prior to 2007, although carryforward attributes that were generated prior to 2007 may still be adjusted upon examination by the IRS if they either have been or will be used in an open year. In the Company’s foreign tax jurisdictions, tax returns for 2010 and subsequent years generally remain open to examination.