Income Taxes - Additional Information (Detail)
$ in Millions
Mar. 31, 2017
|Federal and State|
|Income Taxes [Line Items]|
|Net operating loss carryforwards||$ 61.0|
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