Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2015
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards, expiration date	Dec. 31, 2034
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		$ 227.5
Operating loss carryforwards, unrestricted		165.2
State [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		157.5
Operating loss carryforwards, unrestricted		$ 157.5