Fair Value (Future Principal Receipts Related to Available-For-Sale Security by Contractual Maturity) (Details) $ in Thousands	Aug. 02, 2020 USD ($)
Available For Sale Securities [Abstract]
Amortized Cost, Within one year	$ 139
Amortized Cost, After one year through five years	956
Amortized Cost, After five years through ten years	1,500
Amortized Cost, After ten years	3,520
Amortized Cost, Total	6,115
Estimated Fair Value, Within one year	133
Estimated Fair Value, After one year through five years	926
Estimated Fair Value, After five years through ten years	1,469
Estimated Fair Value, After ten years	3,476
Estimated Fair Value, Total	$ 6,004

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