Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 28, 2021	Dec. 31, 2020	Mar. 29, 2020
Assets
Lease assets	$ 44,765	$ 45,203	$ 56,496
Liabilities
Accrued liabilities	17,021	17,081	17,939
Lease liabilities	30,061	30,115	40,053
Lease liability	$ 47,082	$ 47,196	$ 57,992
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent