Restricted Cash Reconciliation of Cash and cash equivalents and Restricted cash to SOCF (Details) - USD ($) $ in Thousands	Dec. 26, 2020	Mar. 28, 2020	Dec. 28, 2019	Mar. 30, 2019
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents	$ 327,487	$ 241,826	$ 216,882	$ 187,370
Restricted cash, current	12,802	13,446	13,026	12,148
Restricted cash	335	335	350	351
Cash, cash equivalents and restricted cash	$ 340,624	$ 255,607	$ 230,258	$ 199,869

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Name:	us-gaap_RestrictedCashAndCashEquivalentsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant