Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property Plant And Equipment [Abstract]
Accumulated amortization for capitalized software development costs	$ 1,873,000		$ 1,873,000		$ 987,000
Amortization expense for capitalized software development costs	$ 260,000	$ 178,000	$ 838,000	$ 443,000