XML 73 R61.htm IDEA: XBRL DOCUMENT v3.8.0.1

Revenue from Contract with Customers - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Contract with Customer, Liability [Abstract]
Amounts included in deferred revenue for performance obligations satisfied or partially satisfied	$ 0.3

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of revenue recognized arising from contract liability from change in timeframe for performance obligation to be satisfied.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130551-203045

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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