Organization and Principles of Consolidation	9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Principles of Consolidation	Organization and Principles of Consolidation Dril-Quip, Inc., a Delaware corporation (the “Company” or “Dril-Quip”), designs, manufactures, sells and services highly engineered drilling and production equipment that is well suited primarily for use in deepwater, harsh environment and severe service applications. The Company’s principal products consist of subsea and surface wellheads, subsea and surface production trees, subsea control systems and manifolds, mudline hanger systems, specialty connectors and associated pipe, drilling and production riser systems, liner hangers, wellhead connectors, diverters and safety valves. Dril-Quip’s products are used by major integrated, large independent and foreign national oil and gas companies and drilling contractors throughout the world. Dril-Quip also provides technical advisory assistance on an as-requested basis during installation of its products, as well as rework and reconditioning services for customer-owned Dril-Quip products. In addition, Dril-Quip’s customers may rent or purchase running tools from the Company for use in the installation and retrieval of the Company’s products. The Company’s operations are organized into three geographic segments— Western Hemisphere (including North and South America; headquartered in Houston, Texas), Eastern Hemisphere (including Europe and Africa; headquartered in Aberdeen, Scotland) and Asia-Pacific (including the Pacific Rim, Southeast Asia, Australia, India and the Middle East; headquartered in Singapore). Each of these segments sells similar products and services, and the Company has major manufacturing facilities in all three of its regional headquarter locations as well as in Macae, Brazil. The Company’s major subsidiaries are Dril-Quip (Europe) Limited, located in Aberdeen with branches in Denmark, Norway and Holland; Dril-Quip Asia-Pacific PTE Ltd., located in Singapore; and Dril-Quip do Brazil LTDA, located in Macae, Brazil. Other operating subsidiaries include TIW Corporation (TIW), located in Houston, Texas; DQ Holdings Pty. Ltd., located in Perth, Australia; Dril-Quip (Ghana) Ltd., located in Takoradi, Ghana; PT DQ Oilfield Services Indonesia, located in Jakarta, Indonesia; Dril-Quip (Nigeria) Ltd., located in Port Harcourt, Nigeria; Dril-Quip Egypt for Petroleum Services S.A.E., located in Alexandria, Egypt; Dril-Quip Oilfield Services (Tianjin) Co. Ltd., located in Tianjin, China, with branches in Shezhen and Beijing, China; and Dril-Quip Qatar LLC, located in Doha, Qatar; TIW de Mexico S.A. de C.V., located in Villahermosa, Mexico; TIW de Venezuela S.A., located in Anaco, Venezuela and with a registered branch located in Shushufindi, Ecuador; TIW (UK) Limited, located in Aberdeen, Scotland; TIW Hungary LLC, located in Szolnok, Hungary; and TIW International, LLC., with a registered branch located in Singapore. On January 6, 2017, the Company acquired The Technologies Alliance Inc. d/b/a OilPatch Technologies (OPT) for approximately $20.0 million, which was integrated into the Company’s existing Western Hemisphere operations. The condensed consolidated financial statements included herein are unaudited. The balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date. In the opinion of management, the unaudited condensed consolidated interim financial statements include all normal recurring adjustments necessary for a fair statement of the financial position as of September 30, 2018 and the results of operations and comprehensive income for the three and nine months ended September 30, 2018 and 2017 and cash flows for the nine-month periods ended September 30, 2018 and 2017. Certain information and footnote disclosures normally included in annual audited consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. Management believes the unaudited interim related disclosures in these condensed consolidated financial statements are adequate. The results of operations, comprehensive income and cash flows for the nine-month period ended September 30, 2018 are not necessarily indicative of the results to be expected for the full year. The condensed consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Organization and Principles of Consolidation

Dril-Quip, Inc., a Delaware corporation (the “Company” or “Dril-Quip”), designs, manufactures, sells and services highly engineered drilling and production equipment that is well suited primarily for use in deepwater, harsh environment and severe service applications. The Company’s principal products consist of subsea and surface wellheads, subsea and surface production trees, subsea control systems and manifolds, mudline hanger systems, specialty connectors and associated pipe, drilling and production riser systems, liner hangers, wellhead connectors, diverters and safety valves. Dril-Quip’s products are used by major integrated, large independent and foreign national oil and gas companies and drilling contractors throughout the world. Dril-Quip also provides technical advisory assistance on an as-requested basis during installation of its products, as well as rework and reconditioning services for customer-owned Dril-Quip products. In addition, Dril-Quip’s customers may rent or purchase running tools from the Company for use in the installation and retrieval of the Company’s products.

The Company’s operations are organized into three geographic segments— Western Hemisphere (including North and South America; headquartered in Houston, Texas), Eastern Hemisphere (including Europe and Africa; headquartered in Aberdeen, Scotland) and Asia-Pacific (including the Pacific Rim, Southeast Asia, Australia, India and the Middle East; headquartered in Singapore). Each of these segments sells similar products and services, and the Company has major manufacturing facilities in all three of its regional headquarter locations as well as in Macae, Brazil. The Company’s major subsidiaries are Dril-Quip (Europe) Limited, located in Aberdeen with branches in Denmark, Norway and Holland; Dril-Quip Asia-Pacific PTE Ltd., located in Singapore; and Dril-Quip do Brazil LTDA, located in Macae, Brazil. Other operating subsidiaries include TIW Corporation (TIW), located in Houston, Texas; DQ Holdings Pty. Ltd., located in Perth, Australia; Dril-Quip (Ghana) Ltd., located in Takoradi, Ghana; PT DQ Oilfield Services Indonesia, located in Jakarta, Indonesia; Dril-Quip (Nigeria) Ltd., located in Port Harcourt, Nigeria; Dril-Quip Egypt for Petroleum Services S.A.E., located in Alexandria, Egypt; Dril-Quip Oilfield Services (Tianjin) Co. Ltd., located in Tianjin, China, with branches in Shezhen and Beijing, China; and Dril-Quip Qatar LLC, located in Doha, Qatar; TIW de Mexico S.A. de C.V., located in Villahermosa, Mexico; TIW de Venezuela S.A., located in Anaco, Venezuela and with a registered branch located in Shushufindi, Ecuador; TIW (UK) Limited, located in Aberdeen, Scotland; TIW Hungary LLC, located in Szolnok, Hungary; and TIW International, LLC., with a registered branch located in Singapore.

On January 6, 2017, the Company acquired The Technologies Alliance Inc. d/b/a OilPatch Technologies (OPT) for approximately $20.0 million, which was integrated into the Company’s existing Western Hemisphere operations.

The condensed consolidated financial statements included herein are unaudited. The balance sheet at December 31, 2017 has been derived from the audited consolidated financial statements at that date. In the opinion of management, the unaudited condensed consolidated interim financial statements include all normal recurring adjustments necessary for a fair statement of the financial position as of September 30, 2018 and the results of operations and comprehensive income for the three and nine months ended September 30, 2018 and 2017 and cash flows for the nine-month periods ended September 30, 2018 and 2017. Certain information and footnote disclosures normally included in annual audited consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. Management believes the unaudited interim related disclosures in these condensed consolidated financial statements are adequate. The results of operations, comprehensive income and cash flows for the nine-month period ended September 30, 2018 are not necessarily indicative of the results to be expected for the full year. The condensed consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.