Consolidated Balance Sheets (Parenthetical) $ in Millions	Oct. 01, 2016 USD ($) $ / shares shares	Oct. 01, 2016 € / shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2015 € / shares
Stockholders' Equity:
Preferred shares, par value (in usd per share) | $ / shares	$ 0.0001		$ 0.0001
Preferred shares, authorized (in shares)	10,000,000		10,000,000
Ordinary shares, par value (in usd per share) | € / shares		€ 0.001		€ 0.001
Ordinary shares, authorized (in shares)	10,000,000,000		10,000,000,000
Allowance for doubtful accounts | $	$ 5.7		$ 4.5