Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a),(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Name:	us-gaap_OtherSalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Sale of Intellectual Property - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Mar. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Revenue - other			$ 1,750
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Proceeds from royalties	$ 600
Revenue - other		$ 600