Reorganization and Realignment Costs Summary (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 2,102	$ 2,911	$ 7,036	$ 6,821
Operations and Field Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	1,215	0	1,489	0
IT Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	6	2,847	6	6,406
G&A Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	(16)	64	(34)	331
System Optimization
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 897	$ 0	$ 5,575	$ 84

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
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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