Income Taxes (Narrative) (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Tax incentives	$ 5,856,000	$ 9,860,000
Decrease in valuation allowances		(16,300,000)
Additional reserves for uncertain tax benefits		7,100,000
Net impact of holiday tax incentives, per diluted share	$ 0.10	$ 0.16
Unrecognized tax reserve	21,400,000
Interest on unrecognized tax benefits	1,600,000
Penalty on unrecognized tax benefits	1,600,000
CHINA
Tax incentives	1,900,000	1,039,000
Income tax reconciliation tax holidays expiration date	2012
MALAYSIA
Tax incentives	676,000
Income tax reconciliation tax holidays expiration date	2015
THAILAND
Tax incentives	$ 3,280,000	$ 8,821,000
Income tax reconciliation tax holidays expiration date	2018