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Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We are the subject of lawsuits and claims arising in the ordinary course of business from time to time. A liability is accrued when a loss is both probable and can be reasonably estimated. We had no material accruals for loss contingencies, individually or in the aggregate, as of June 30, 2016 and December 31, 2015. We believe the probability is remote that the ultimate outcome of these matters would have a material adverse effect on our financial position, results of operations or cash flows. We are conducting an internal investigation of the operations of certain of our foreign subsidiaries in West Africa including possible violations of the U.S. Foreign Corrupt Practices Act, our policies and other applicable laws. In June 2016, we voluntarily disclosed the existence of our extensive internal review to the U.S. Securities and Exchange Commission and the United States Department of Justice. While our review does not currently indicate that there has been any material impact on our previously filed financial statements, we continue to collect information and are unable to predict the ultimate resolution of these matters with these agencies.