Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Oct. 03, 2020	Dec. 31, 2019
Finance leases:
Other assets	$ 1,948	$ 1,384
Accrued liabilities	2,338	1,384
Operating leases:
Operating lease ROU assets	62,144	70,225
Operating lease liabilities	22,390	23,511
Long-term operating lease liabilities	56,703	67,902
Total operating lease liabilities	$ 79,093	$ 91,413
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Finance Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent