Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 11,629	$ 17,086	$ 10,028
Gross additions to tax positions taken during the current year	1,184	680	9,009
Gross additions to tax positions taken during the prior year	711	3,019	103
Gross reductions to tax positions taken during the prior year	(76)	(8,607)	(372)
Reductions from settlements with taxing authorities	(2,637)	0	0
Reductions from lapse of applicable statutes of limitations	(502)	(549)	(1,682)
Balance at end of year	$ 10,309	$ 11,629	$ 17,086