Subsequent Event - Additional Information (Detail) (Subsequent Event, Bellicum Pharmaceuticals Inc, License agreement, USD $) In Millions, unless otherwise specified	1 Months Ended
	Oct. 31, 2014 Installment
Subsequent Event [Line Items]
License agreement, amount of agreement	$ 50
Number of Installments	3
Amount received upon execution of the agreement	15
due by June 30, 2015
Subsequent Event [Line Items]
Installment amount	20
due by June 30, 2016
Subsequent Event [Line Items]
Installment amount	$ 15