Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2014
Income Tax [Line Items]
Operating Loss Carryforwards	$ 48.8	$ 11.3
Operating Loss Carryforwards Expiration Description	expiring beginning in 2021 for federal and 2015 for California
Deferred Tax Assets Net Operating Income Loss Carry Forwards			$ 30.4

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

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