Income Taxes (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Apr. 18, 2014
Business Acquisition [Line Items]
Gross unrecognized tax benefits	$ 2,800,000
Accrued interest related to unrecognized tax benefits	385,000
Deferred tax asset, net	198,778,000	230,442,000	276,800,000
Net operating loss and tax credit carryforwards	238,400,000
Net operating loss carryforwards, valuation allowance	2,600,000
Effective income tax rate on unrecognized tax benefits that would impact effective tax rate	0.60%
Recognized benefit in interest	$ 13,000