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Supplemental financial statement info Components of Accrued and Other Current Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Other accrued and current liabilities $ 30,901 $ 20,455
Accrued severance pay 11,438 1,009
Accrued vacation pay 9,135 6,001
Income taxes payable 6,198 8,146
Revolving credit facility 6,000 0
Current portion of long-term debt 2,603 0
Accrued bond interest 1,636 2,560
Deferred tax liability – current 1,555 1,928
Accrued and other current liabilities $ 69,466 $ 40,099