Other Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Other Accrued Expenses
Self-insurance	$ 68,881	$ 72,631
Salaries and wages	56,774	39,102
Staff member benefits	25,044	22,946
Payroll and sales taxes	22,822	15,684
Deferred consideration	16,740
Other	46,321	44,018
Total	$ 236,582	$ 194,381