Severance and Other Charges (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Other Income and Expenses [Abstract]
Severance charges			$ (8,800)
Severance and other charges	$ 0	$ 7,090
Accrued severance charges	$ 1,500