Geographic and Segment Information - Net Sales by Business Line (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Sales
Total net sales	$ 167,652	$ 194,332	$ 172,070	$ 164,164	$ 175,510	$ 170,812	$ 193,533	$ 194,322	$ 698,218	$ 734,177	$ 807,336
Display Solutions [Member]
Net Sales
Total net sales									199,861	202,951	285,939
Semiconductor Manufacturing Services [Member]
Net Sales
Total net sales									360,549	395,365	395,858
Power Solutions [Member]
Net Sales
Total net sales									137,246	135,329	124,960
All Other [Member]
Net Sales
Total net sales									$ 562	$ 532	$ 579