Goodwill and Intangible Assets (Changes In Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 27, 2021	Mar. 28, 2020
Changes in goodwill
Balance at beginning of period	$ 671,843	$ 565,503
Current fiscal year acquisitions	17,677	106,930
Adjustments to prior fiscal year acquisitions	4	(590)
Balance at end of period	$ 689,524	$ 671,843

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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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- Definition

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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