XML 51 R40.htm IDEA: XBRL DOCUMENT v3.10.0.1
Pension Plan (Details)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 16, 2018
USD ($)
Dec. 29, 2018
USD ($)
Dec. 30, 2017
USD ($)
Dec. 29, 2018
USD ($)
Dec. 30, 2017
USD ($)
Mar. 31, 2018
participant
Retirement Benefits [Abstract]            
Number of pension plan participants authorized to terminate from Scheme | participant           60
Contributions paid $ 11,000          
U.K. pension settlement   $ 13,768 $ 0 $ 13,768 $ 0  
Tax credit   $ 2,600