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Description of Business, Basis of Presentation and Consolidation and Significant Accounting Policies - Additional Information (Detail) - Accounting Standards Update 2016-09 [Member] $ in Millions | Jun. 30, 2017 USD ($)
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Deferred tax assets | $ 3.4
Valuation allowance against deferred tax assets | 3.4
Accumulated Deficit [Member] |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative effect adjustment | $ 0.1

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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