401(k) Profit Sharing Plan - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Contribution Plan Disclosure [Line Items]
Profit sharing plan information	The Company’s employees participate in the Company’s 401(k) profit sharing plan (the “401k Plan”) that covers all employees eighteen years of age or older who have completed three months of employment.
Employee contribution on compensation, maximum	100.00%
Percentage of employees' annual contribution, eligible for employers match	50.00%	50.00%	50.00%
Percentage of employees' annual contribution matched	5.00%	5.00%	5.00%
Employer contribution amount	$ 700,000	$ 500,000	$ 500,000
Deferred Profit Sharing
Defined Contribution Plan Disclosure [Line Items]
Employer contribution amount	$ 0	$ 0	$ 0