Severance and Other Charges (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Other Income and Expenses [Abstract]
Severance and other charges	$ 7,090	$ 0
Severance Costs	(6,400)
Business Exit Costs	(500)
Asset write-offs	$ (200)