Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe Company maintains a valuation allowance for substantially all of its deferred tax assets. A valuation allowance is established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. The Company will continue to record a valuation allowance for the substantial majority of its deferred tax assets until there is sufficient evidence to warrant reversal. The tax provision for the nine months ended September 30, 2020 has been calculated using the Company’s overall estimated annual effective tax rate based on projected 2020 full year results. The Company’s effective tax rates for the three and nine months ended September 30, 2020 and 2019 were negatively impacted by the change in valuation allowance related to U.S. operating losses for which the Company cannot currently recognize a tax benefit. The Company’s effective tax rates for the nine months ended September 30, 2020 were also negatively impacted by the valuation allowance related to certain foreign losses. Due to the impact of the valuation allowances on tax expense, the Company’s effective tax rates are not meaningful for all periods presented. The Company’s income tax expense for the nine months ended September 30, 2020 of $10.0 million primarily relates to results from the Company’s non-U.S. businesses, including $2.2 million of valuation allowance. The valuation allowance was established as a result of a change in the expectation of future revenues after entering into the settlement agreement with WesternGeco described in Note 9 “Litigation”. In response to the global pandemic related to COVID-19, the President of the United States signed into law the CARES Act on March 27, 2020. The CARES Act provides numerous relief provisions for corporate tax payers, including modification of the utilization limitations on net operating losses, favorable expansions of the deduction for business interest expense under Internal Revenue Code Section 163(j), and the ability to accelerate timing of refundable AMT credits. For the nine months ended September 30, 2020, there were no material tax impacts to our condensed consolidated financial statements as it relates to COVID-19 measures. The Company received an AMT credit refund of $0.8 million for the nine months ended September 30, 2020. The Company continues to monitor additional guidance issued by the U.S. Treasury Department, the Internal Revenue Service and others. At September 30, 2020, the Company has approximately $0.4 million of unrecognized tax benefits and does not expect to recognize significant increases in unrecognized tax benefits during the next twelve-month period. Interest and penalties, if any, related to unrecognized tax benefits are recorded in income tax expense. At September 30, 2020, the Company’s U.S. federal tax returns for 2016 and subsequent years remain subject to examination by tax authorities. In the Company’s foreign tax jurisdictions, tax returns for 2014 and subsequent years generally remain open to examination.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.