Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Financial Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Details)

v3.19.1
Fair Value - Financial Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Details) - Recurring Basis - USD ($)
Mar. 30, 2019
Dec. 31, 2018
Sep. 29, 2018
Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis        
Financial assets carried at fair value $ 0 $ 0   $ 0
Financial liabilities carried at fair value $ 0 $ 0 $ 0 $ 0