Employee Benefit Plan - Additional Information (Details) - 401(k) retirement savings plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Defined Contribution Plan Disclosure [Line Items]
Employer contribution, amount	$ 1.0	$ 1.1	$ 2.0	$ 2.5
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%