Barnes & Noble, Inc. Transactions Barnes & Noble, Inc. Transactions (Details) - Barnes and Noble, Inc [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Aug. 01, 2015	Apr. 30, 2016	Apr. 28, 2018	Apr. 29, 2017
Direct Costs		$ 22,673	$ 25,936	$ 29,173
Allocation of Expenses	$ 13,321
Accounts Payable			$ 7,759	$ 8,041

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant