Annual report pursuant to Section 13 and 15(d)

Income taxes - Tax Rates (Details)

v3.19.3.a.u2
Income taxes - Tax Rates (Details)
12 Months Ended
Apr. 01, 2017
Dec. 31, 2019
Dec. 31, 2018
Her Majesty's Revenue and Customs (HMRC)      
Income taxes      
Tax rate (as a percent) 19.00% 19.00% 19.00%