Income Taxes - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 0	$ 0
Accrued interest or penalties	$ 0	$ 0
Minimum [Member]
Income Tax Contingency [Line Items]
Open tax years	2011
Maximum [Member]
Income Tax Contingency [Line Items]
Open tax years	2014