Stock Repurchase Program - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended	142 Months Ended
Jan. 26, 2020	Jan. 27, 2019	Jan. 28, 2018	Jan. 26, 2020
Equity [Abstract]
Repurchased shares of common stock, cost	$ 70,219	$ 116,210	$ 14,849	$ 337,800
Remaining authorization under stock repurchase program	$ 110,600			$ 110,600

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Balance Type:	debit
Period Type:	duration