Income Taxes (Narrative) (Details) (USD $)	12 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2008	Dec. 31, 2010 Federal [Member]	Dec. 31, 2010 State [Member]	Dec. 31, 2011 Singapore Economic Development Board [Member]	Dec. 31, 2010 Singapore Economic Development Board [Member]	Dec. 31, 2009 Singapore Economic Development Board [Member]
Income Taxes [Line Items]
Deferred income taxes undistributed foreign earnings	$ 175,000,000	$ 90,000,000
Effective tax rate	35.00%							17.00%
Income tax rate								10.00%
Expiration of tax rate if agreed commitments are not met						2014
Extended tax rate expiration date if requirements are met						2018
Reduction in consolidated income taxes						2,030,000	1,247,000	87,000
Unrecognized tax benefits related to an acquisition	4,000,000		4,000,000
Net operating loss carryforwards, federal	8,436,000
Net operating loss carryforwards, state	$ 27,134,000
Net operating loss carryforwards, expire				2022 through 2027	2012 through 2020
Open tax years by major tax jurisdiction	The tax years 2008 through 2010 remain open to examination by multiple state taxing jurisdictions