Accumulated Other Comprehensive Income and Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income beginning	$ (32,867)	$ (255)
Other comprehensive income (loss) before reclassifications	731	(20,237)
Amounts reclassified from accumulated other comprehensive (loss) income	30,052	(12,375)
Total other comprehensive income (loss)	30,783	(32,612)	$ (11,496)
Accumulated other comprehensive (loss) income ending	(2,084)	(32,867)	(255)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income beginning	(2,525)	(1,013)
Other comprehensive income (loss) before reclassifications	1,012	(1,724)
Amounts reclassified from accumulated other comprehensive (loss) income	88	212
Total other comprehensive income (loss)	1,100	(1,512)
Accumulated other comprehensive (loss) income ending	(1,425)	(2,525)	(1,013)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income beginning	(513)	11,451
Other comprehensive income (loss) before reclassifications	(146)	623
Amounts reclassified from accumulated other comprehensive (loss) income	0	(12,587)
Total other comprehensive income (loss)	(146)	(11,964)
Accumulated other comprehensive (loss) income ending	(659)	(513)	11,451
Equity Interest in J-Devices' Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income beginning	(29,829)	(10,693)
Other comprehensive income (loss) before reclassifications	(135)	(19,136)
Amounts reclassified from accumulated other comprehensive (loss) income	29,964	0
Total other comprehensive income (loss)	29,829	(19,136)
Accumulated other comprehensive (loss) income ending	$ 0	$ (29,829)	$ (10,693)