Related Party Transactions - Additional Information (Detail) - Officer - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Consulting
Related Party Transaction [Line Items]
Transaction expenses incurred by parent company	$ 65,000	$ 41,000	$ 112,000	$ 71,000
Outstanding payables due to related party	21,000		21,000		$ 8,000
Software Licensing and Subscription
Related Party Transaction [Line Items]
Quarterly software licensing fee	20,000
Deferred costs related to annual software subscription	$ 80,000		$ 80,000		$ 0