Revenue From Contracts With Customers - Additional Information (Detail) $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue remaining performance obligation	$ 51.6
Revenue remaining performance obligation description	greater than one year

Description of when remaining performance obligation is expected to be recognized as revenue.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045

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