ACCOUNTS RECEIVABLE (Details)	12 Months Ended
	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2011 Fixed Rate 2017 Notes and Factoring Agreement [Member] USD ($)	Dec. 31, 2011 Fixed Rate 2017 Notes and Factoring Agreement [Member] CZK	Dec. 31, 2010 Fixed Rate 2017 Notes and Factoring Agreement [Member] USD ($)	Dec. 31, 2010 Fixed Rate 2017 Notes and Factoring Agreement [Member] CZK	Dec. 31, 2011 Factoring Agreement [Member] CZECH REPUBLIC [Member] USD ($)	Dec. 31, 2011 Factoring Agreement [Member] CZECH REPUBLIC [Member] CZK	Dec. 31, 2010 Factoring Agreement [Member] CZECH REPUBLIC [Member] USD ($)	Dec. 31, 2010 Factoring Agreement [Member] CZECH REPUBLIC [Member] CZK
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unrelated Customers	$ 204,747,000	$ 221,463,000
Less allowance for bad debts and credit notes	(13,555,000)	(13,202,000)
Related Parties	1,020,000	884,000
Less allowance for bad debts and credit allowances	(55,000)	(3,000)
Total accounts receivable	192,157,000	209,142,000
Provision for Doubtful Accounts	3,300,000	2,800,000	2,800,000
Allowance for Loan and Lease Losses, Recoveries of Bad Debts		200,000	200,000
Receivables Pledged As Collateral Related To Factoring Aggreement				$ 36,100,000	719,900,000	$ 33,900,000	676,000,000	$ 27,400,000	545,800,000	$ 25,700,000	513,200,000