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Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2017
Employee Benefit Plans [Abstract]
Employee Benefit Plans	Note 15—Employee Benefit Plans The Company has defined contribution plans qualified under Section 401(k) of the Internal Revenue Code for the benefit of all its U.S. employees. The Company’s contributions to the plans are based on employee contributions and compensation. During 2017, 2016 and 2015, the Company made contributions to the plans of approximately $5.2 million, $5.2 million and $4.8 million, respectively. The Company also has defined contribution benefit plans for certain of its international employees primarily dictated by the custom of the regions in which it operates. During 2017, 2016 and 2015, the Company made contributions to the international plans of approximately $0.1 million, $0.1 million and $0.1 million, respectively.