Significant Accounting Policies - Summary of Common Stock Equivalents Using the Treasury Stock Method (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock equivalents included in diluted net income (loss) (in shares)	928,404	0	791,736	0
Stock options
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock equivalents included in diluted net income (loss) (in shares)	891,341	0	776,580	0
Unvested restricted stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock equivalents included in diluted net income (loss) (in shares)	0	0	0	0
Restricted stock units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock equivalents included in diluted net income (loss) (in shares)	37,063	0	15,156	0
Common stock warrants
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock equivalents included in diluted net income (loss) (in shares)	0	0	0	0