Summary of Significant Accounting Policies - Property Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Accounting Policies [Abstract]
Land	$ 32,523	$ 28,996
Building and improvements	196,743	175,678
Furniture and fixtures	64,586	54,362
Machinery and equipment	188,454	165,157
Property, pland and equipment, gross	482,306	424,193
Less accumulated depreciation	(167,737)	(142,278)
Property, plant and equipment, net	$ 314,569	$ 281,915