Leases - Supplemental Cash Flow Information to Leases (Details) $ in Thousands	3 Months Ended
	Mar. 30, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 1,391
Operating cash flows from finance leases	19
Financing cash flows from finance leases	274
Right-of-use asset obtained in exchange for operating lease liability	27,044
Right-of-use asset obtained in exchange for finance lease liability	$ 2,161