Equity and Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance			$ (255)	$ 11,241
Other comprehensive income (loss) before reclassifications			(5,258)	(4,692)
Amounts reclassified from accumulated other comprehensive (loss) income			(11,965)	291
Total other comprehensive (loss) income	(9,727)	2,533	(17,223)	(4,401)
Accumulated other comprehensive (loss) income, ending balance	(17,478)	6,840	(17,478)	6,840
Defined Benefit Pension [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance			(1,013)	(5,373)
Other comprehensive income (loss) before reclassifications			0	4,120
Amounts reclassified from accumulated other comprehensive (loss) income			622	291
Total other comprehensive (loss) income			622	4,411
Accumulated other comprehensive (loss) income, ending balance	(391)	(962)	(391)	(962)
Foreign Currency Translation [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance			11,451	16,346
Other comprehensive income (loss) before reclassifications			681	(3,369)
Amounts reclassified from accumulated other comprehensive (loss) income			(12,587)	0
Total other comprehensive (loss) income			(11,906)	(3,369)
Accumulated other comprehensive (loss) income, ending balance	(455)	12,977	(455)	12,977
Equity Interest in J-Devices' Other Comprehensive Income (Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance			(10,693)	268
Other comprehensive income (loss) before reclassifications			(5,939)	(5,443)
Amounts reclassified from accumulated other comprehensive (loss) income			0	0
Total other comprehensive (loss) income			(5,939)	(5,443)
Accumulated other comprehensive (loss) income, ending balance	$ (16,632)	$ (5,175)	$ (16,632)	$ (5,175)