Subsequent Events (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jul. 13, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Subsequent Event [Line Items]
Property and equipment and other asset write-downs		$ 45	$ 2,000	$ 45	$ 2,000
Business closure cost or expense				$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Property and equipment and other asset write-downs	$ 2,000
Subsequent Event [Member] | Maximum [Member]
Subsequent Event [Line Items]
Severance costs	2,400
Termination fees, ongoing maintenance expenditures, and facility and business closure expenses	1,300
Legal and other professional fees	800
Subsequent Event [Member] | Minimum [Member]
Subsequent Event [Line Items]
Severance costs	1,300
Termination fees, ongoing maintenance expenditures, and facility and business closure expenses	600
Legal and other professional fees	400
Subsequent Event [Member] | Equity Award [Member]
Subsequent Event [Line Items]
Severance costs	$ 300