Number of pending claims pertaining to a loss contingency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

COMMITMENTS AND CONTINGENCIES - Narrative (Details) - Pending Litigation	Nov. 02, 2016 patent	Apr. 21, 2016 patent	Dec. 31, 2016 claim
Loss Contingencies [Line Items]
Pending litigation cases \| claim			0
Siemens Industry, Inc.
Loss Contingencies [Line Items]
Patents allegedly infringed \| patent	6	7