Commitments and Contingencies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($) ft² Category	Dec. 31, 2014 USD ($)
Loss Contingencies [Line Items]
Number of major categories the entity commitments and contingencies are grouped into | Category	3
Net deferred tax liability	$ 4,962	$ 1,341
Square footage of office facility | ft²	18,500
Original lease expiration date	May 31, 2017
Extended lease expiration date	Aug. 31, 2019
Increase in area of real estate property | ft²	13,642
Expected future lease payments [Abstract]
2015	$ 363
2016	714
2017	726
2018	740
Thereafter	502
Total	$ 3,045