Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Class A Redeemable Convertible Preferred Stock - Schedule of Redemption Discounts (Detail)

v3.3.1.900
Class A Redeemable Convertible Preferred Stock - Schedule of Redemption Discounts (Detail) - Series A Redeemable Convertible Preferred Stock [Member]
12 Months Ended
Dec. 31, 2015
Commencing on the Original Issue Date and Ending on the 1st Anniversary of Original Issue Date [Member]  
Temporary Equity [Line Items]  
Redemption Discount 9.0909%
Commencing on the Day After the 1st Anniversary of the Original Issue Date and Ending on the 2nd Anniversary of the Original Issue Date [Member]  
Temporary Equity [Line Items]  
Redemption Discount 6.8182%
Commencing on the Day After the 2nd Anniversary of the Original Issue Date and Ending on the 3rd Anniversary of the Original Issue Date [Member]  
Temporary Equity [Line Items]  
Redemption Discount 4.5455%
Commencing on the Day After the 3rd Anniversary of the Original Issue Date and Ending on the 4th Anniversary of the Original Issue Date [Member]  
Temporary Equity [Line Items]  
Redemption Discount 2.2727%