Exercise price per share or per unit of warrants or rights outstanding.

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The price per share of the conversion feature embedded in the debt instrument.

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Debt - Convertible Note Hedge and Warrant Transactions (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended	12 Months Ended
	Jan. 30, 2021	Jan. 30, 2021	Jan. 25, 2020	Jan. 26, 2019	Sep. 15, 2015
Debt Instrument [Line Items]
Proceeds from borrowings on senior credit agreement, including term loans		$ 1,056,000,000	$ 475,000,000	$ 423,188,000
Convertible Note Hedge
Debt Instrument [Line Items]
Debt instrument, convertible, conversion price (per share)					$ 96.89
0.75% Convertible Senior Notes Due 2021
Debt Instrument [Line Items]
Debt instrument, face amount	$ 58,264,000	58,264,000	460,000,000		$ 485,000,000.0
Debt instrument, convertible, conversion price (per share)					$ 96.89
Proceeds from borrowings on senior credit agreement, including term loans	$ 25,000,000.0	$ 401,700,000
Warrant Transaction
Debt Instrument [Line Items]
Proceeds from borrowings on senior credit agreement, including term loans			$ 25,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (shares)			5,006		601
Class of warrant or right, exercise price of warrants or rights (per warrant)					$ 130.43