Quarterly Financial Data (Unaudited) - Narratives (Details) - USD ($) $ in Thousands		12 Months Ended
Feb. 25, 2019	Jan. 25, 2020	Jan. 26, 2019
Interim Period, Costs Not Allocable [Line Items]
Accounts Receivable, Net		$ 817,245	$ 625,258
Provision for bad debt (recovery), net		$ 6,580	(27)
Windstream
Interim Period, Costs Not Allocable [Line Items]
Accounts Receivable, Net			$ 45,000
Provision for bad debt (recovery), net	$ 17,200

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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