Reorganization and Realignment Costs Summary (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 2,911	$ 3,570	$ 6,821	$ 4,368
IT Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	2,847	0	6,406	0
G&A Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	64	3,517	331	4,299
System Optimization
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 0	$ 53	$ 84	$ 69

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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