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Debt (Schedule of Debt) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Short-term debt   $ 1,160
Debt:    
Total debt 197,232 200,236
Less: current portion (12,187) (18,925)
Total long-term debt, net 185,045 181,311
Line of Credit [Member]
    
Debt:    
Debt, maturity Dec - 2016  
BCS Revolver [Member]
    
Debt Instrument [Line Items]    
Credit facilities   1,160
Debt:    
Debt, maturity Feb - 2013  
Revolving Credit Facility [Member]
    
Debt Instrument [Line Items]    
Credit facilities   1,160
Senior Notes [Member]
    
Debt:    
Long-term debt 173,061 [1] 173,916 [1]
Debt, maturity Oct - 2017 [1]  
Long-term debt, weighted average interest rate 9.50% [1]  
PST Notes Payable [Member]
    
Debt Instrument [Line Items]    
Short-term debt 4,822 16,161
Debt:    
Long-term debt 16,896 8,155
Debt, maturity Various 2014  
Debt maturity period range start 2014  
Debt maturity period range end 2019  
PST Notes Payable [Member] | Maximum [Member]
    
Debt:    
Long-term debt, weighted average interest rate 5.50%  
Short-term debt, weighted average interest as of December 31, 2013 16.56%  
PST Notes Payable [Member] | Minimum [Member]
    
Debt:    
Long-term debt, weighted average interest rate 4.00%  
Short-term debt, weighted average interest as of December 31, 2013 1.70%  
Other [Member]
    
Debt:    
Total debt 966 559
Suzhou Note [Member]
    
Debt Instrument [Line Items]    
Short-term debt $ 1,487 $ 1,445
Debt:    
Debt, maturity Feb - 2014  
Long-term debt, weighted average interest rate 7.00%  
[1] Weighted-average interest rate excludes the impact of the Company’s interest rate swap and the accretion of debt discount.