Legal Proceedings - Additional Information (Detail) - Lexel Imaging, Inc. $ in Thousands	9 Months Ended
Nov. 30, 2017 USD ($)
Legal Proceedings [Line Items]
Bankruptcy proceedings description	Lexel Imaging's Chapter 11 Bankruptcy case was dismissed upon approval of a settlement agreement between Lexel Imaging (Lexel) and its landlord, Alidade Bull Lea, LLC (Alidade). The settlement agreement required Lexel to surrender possession of the rental property on or before September 30, 2017 and remit to Alidade all past due rent of approximately $232 thousand.
Escrow amount deposit	$ 100
Escrow deposit period	Jul. 28, 2017
Property Lease Guarantee
Legal Proceedings [Line Items]
Litigation settlement amount	$ 232

Description of the bankruptcy proceedings, including the process for emergence from bankruptcy. Does not include a description of management's plans to improve operations to enable the entity to emerge from bankruptcy, or a description of planned facility closings, business exit activities and headcount reduction plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64805424&loc=d3e55696-112764

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56145-112766

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Legal Proceedings [Line Items]

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