Employee Benefit Plan - Additional Information (Details) - 401 (k) Plan - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Defined Contribution Plan Disclosure [Line Items]
Eligibility age of employees for plan	21 years
Employee minimum service period	90 days
Employer contribution amount	$ 449,000	$ 356,000