Commitments and contingencies (Table) (Details) $ in Thousands	Dec. 29, 2018 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 19,207
Operating Leases, Future Minimum Payments, Due in Two Years	17,356
Operating Leases, Future Minimum Payments, Due in Three Years	14,451
Operating Leases, Future Minimum Payments, Due in Four Years	12,622
Operating Leases, Future Minimum Payments, Due in Five Years	8,389
Operating Leases, Future Minimum Payments, Due Thereafter	47,852
Operating Leases, Future Minimum Payments Due, Total	$ 119,877