Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

Fair Market Values for Cash and Available-for-sale Short-term Investments (Detail) - USD ($)	Nov. 03, 2018	Feb. 03, 2018	Oct. 28, 2017
Cash and cash equivalents:
Cash and cash equivalents	$ 279,872,000	$ 413,613,000	$ 257,527,000
Short-term investments
Short-term investments	79,856,000		0
Total cash and short-term investments	359,728,000	413,613,000	257,527,000
Cash
Cash and cash equivalents:
Cash and cash equivalents	156,250,000	184,107,000	185,546,000
Interest Bearing Deposits
Cash and cash equivalents:
Cash and cash equivalents	93,733,000	174,577,000	$ 71,981,000
Commercial Paper
Cash and cash equivalents:
Cash and cash equivalents	29,889,000	$ 54,929,000
Short-term investments
Short-term investments	14,859,000
Certificates of Deposit
Short-term investments
Short-term investments	55,000,000
Corporate Bonds
Short-term investments
Short-term investments	$ 9,997,000