Condensed Consolidated Balance Sheets (Parenthetical) $ in Millions	Mar. 30, 2019 € / shares	Mar. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2018 € / shares	Dec. 31, 2018 USD ($) $ / shares shares
Statement of Financial Position [Abstract]
Allowance for doubtful accounts | $		$ 6.8		$ 6.4
Stockholders' Equity:
Preferred shares, par value (in dollars per share) | $ / shares		$ 0.0001		$ 0.0001
Preferred shares, authorized		10,000,000		10,000,000
Ordinary shares, par value (in EUR per share) | € / shares	€ 0.001		€ 0.001
Ordinary shares, authorized		10,000,000,000		10,000,000,000