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Summary of significant accounting policies (Tables)
12 Months Ended
Dec. 31, 2011
Summary of significant accounting policies  
Schedule of the useful lives of long-lived assets

 

 

 

 

Years

 

Buildings

 

25 to 33

 

Plant and equipment

 

2 to 10

 

Furniture and fixtures

 

4 to 8

 

Instrumentation

 

3 to 4

 

Schedule of the components of and changes in accumulated other comprehensive income

 

 

(US$ in thousands)

 

Foreign Currency
Translation
Adjustments

 

Fair Value of
Cross-
Currency Swaps

 

Accumulated Other
Comprehensive
Income (Loss)

 

Balance at December 31, 2009

 

$

6,795

 

$

395

 

$

7,190

 

Unrealized loss on cross-currency swaps, net of tax of $(36)

 

 

(90

)

(90

)

Foreign currency translation adjustment (1)

 

(1,710

)

 

(1,710

)

Balance at December 31, 2010

 

5,085

 

305

 

5,390

 

Unrealized loss on cross-currency swaps, net of tax of $256

 

 

(437

)

(437

)

Foreign currency translation adjustment (1)

 

(3,192

)

 

(3,192

)

 

 

 

 

 

 

 

 

Balance at December 31, 2011

 

$

1,893

 

$

(132

)

$

1,761

 

 

(1)               As the cash generally remains permanently invested in the non U.S. dollar denominated foreign subsidiaries, no deferred taxes are recognized on the related foreign currency translation adjustment.