Acquisition - Summary of Assets Acquired at Estimated Relative Fair Values (Detail) - Honeywell Asset Purchase and License Agreement [Member] $ in Thousands	Sep. 28, 2017 USD ($)
Purchase Price Allocation [Line Items]
Inventory	$ 1,411
Identifiable Intangible Assets	27,243
Total Purchase Price	$ 28,654

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

Name:	us-gaap_FiniteLivedIntangibleAssetsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant