Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) ft²	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) ft²	Jun. 30, 2015 USD ($)
Other Commitments [Line Items]
Rent expense	$ 2.5	$ 1.8	$ 4.7	$ 3.4
Square feet of additional office space | ft²	18,000		18,000
Total amount of rent to be paid	$ 4.6		$ 4.6
Capital Lease Agreements
Other Commitments [Line Items]
Lease expiration date			Mar. 31, 2015