Employee Benefit Plan - Additional Information (Details) - 401(k) retirement savings plan - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Defined Contribution Plan Disclosure [Line Items]
Employer contribution, amount	$ 1.2	$ 1.6
Employee Participant Compensation One
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent	100.00%
Participants' compensation considered for match by Employer, percent	3.00%
Employee Participant Compensation Two
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent	50.00%
Participants' compensation considered for match by Employer, percent	2.00%