Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018
Goodwill [Roll Forward]
Beginning balance	$ 140,930	$ 98,899
Acquisitions	169,100	41,923
Disposed/Adjustments	(814)	108
Ending balance	309,216	140,930
INF
Goodwill [Roll Forward]
Beginning balance	69,255	28,675
Acquisitions	162,814	40,472
Disposed/Adjustments	(814)	108
Ending balance	231,255	69,255
BTS
Goodwill [Roll Forward]
Beginning balance	71,675	70,224
Acquisitions	6,286	1,451
Disposed/Adjustments	0	0
Ending balance	$ 77,961	$ 71,675

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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