Subsequent Event - Additional Information (Detail) - Subsequent Event [Member] - $ / shares	Jul. 17, 2018	Jul. 02, 2018	Jul. 01, 2018
Subsequent Event [Line Items]
Common stock issued and outstanding canceled and converted into right to receive in cash			$ 11.50
Merger Agreement [Member]
Subsequent Event [Line Items]
Date of merger		Jul. 02, 2018
Cash tender offer commencement date	Jul. 17, 2018
Common stock price per share	$ 11.50
Number of business days that cash tender offer remain open from commencement date	20 days
Cash tender offer end date	Aug. 13, 2018
Meger agreement description		The obligation of Merger Sub to consummate the Offer is subject to customary conditions, including, among others, that a certain minimum number of shares of common stock be validly tendered and not validly withdrawn (“Minimum Condition”). Specifically, the Minimum Condition requires that there be validly tendered and not validly withdrawn shares of common stock that, when considered together with all other shares of common stock (if any) beneficially owned by Catalent and its affiliates (excluding any shares of common stock tendered pursuant to guaranteed delivery procedures that have not yet been received), represent more than 50% of the sum of (x) the total number of shares of the Company’s common stock outstanding at the time of the expiration of the Offer, plus (y) the aggregate number of shares of common stock then issuable to optionholders from which the Company has received notices of exercise prior to the expiration of the Offer (and as to which such shares have not yet been issued to such exercising optionholders) .
Minimum percentage that represents common stock outstanding at cash tender offer and common stock issuable to optionholders from expiration of Offer	50.00%