Restricted Cash Reconciliation of Cash and cash equivalents and Restricted cash to SOCF (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Mar. 30, 2019	Jun. 30, 2018	Mar. 31, 2018
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents	$ 199,820	$ 187,370	$ 177,487	$ 186,766
Restricted cash, current	12,853	12,148	12,918	11,228
Restricted cash	351	351	1,066	1,264
Cash, cash equivalents and restricted cash	$ 213,024	$ 199,869	$ 191,471	$ 199,258

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