DEBT AND LINES OF CREDIT (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Debt and Lines of credit
Total long-term debt	$ 179,119	$ 204,035
Current portion of long-term debt	27,577	25,992
Total long-term debt, less current portion	151,542	178,043
Japanese private placement bonds due June 2014
Debt and Lines of credit
Total long-term debt	2,567	2,576
Japanese loans due through November 2016
Debt and Lines of credit
Total long-term debt	1,329	1,463
Austrian loans
Debt and Lines of credit
Total long-term debt		4,158
Israeli loans, due through October 2015
Debt and Lines of credit
Total long-term debt	4,098	10,838
U.S. term loan due October 2016
Debt and Lines of credit
Total long-term debt	$ 171,125	$ 185,000