Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Commitments [Line Items]
Rent expenses incurred	$ 12.9	$ 11.9	$ 9.9
Fiscal Year One
Other Commitments [Line Items]
Operating leases, future minimum sublease rentals	$ 0.3