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Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule of changes to severance indemnity
Ending balance	$ 6,930	$ 7,705
Severance Plan [Member]
Schedule of changes to severance indemnity
Beginning balance	7,705	7,864
Amounts accrued	574	1,279
Payments to employees/government managed plan	(1,477)	(1,233)
Foreign currency impacts	128	(205)
Ending balance	$ 6,930	$ 7,705

For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer).

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