XML 48 R39.htm IDEA: XBRL DOCUMENT v3.7.0.1
Accretion of Debt Issuance Cost and Debt Discount in Connection with Facility Financing Agreement (Detail) - Deerfield - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Debt Instrument [Line Items]    
Accretion expense - debt issuance cost $ 9 $ 9
Accretion expense - debt discount $ 447 $ 419