Other Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other Income and Expenses [Abstract]
Interest income	$ (690)	$ (831)	$ (1,673)	$ (1,542)
Foreign currency (gain) loss, net	(1,459)	4,213	(1,252)	4,547
Loss on debt retirement	(9,349)	(622)	(9,560)	(757)
Gain on sale of subsidiary to J-Devices (Note 3)	0	9,155	0	9,155
Other expense (income), net	90	(548)	157	(270)
Total other (income) expense, net	$ 7,290	$ (5,699)	$ 6,792	$ (5,663)