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Other current liabilities
 12 Months Ended
Dec. 31, 2014
Payables And Accruals [Abstract]  
Other current liabilities

6.

Other current liabilities

 

 

 

December 31,

 

(U.S. Dollars in thousands)

 

2014

 

 

2013

 

Accrued expenses

 

$

23,298

 

 

$

18,903

 

Salaries, bonuses, commissions and related taxes payable

 

 

16,879

 

 

 

16,598

 

Accrued legal expenses

 

 

9,548

 

 

 

10,292

 

Other payables

 

 

3,495

 

 

 

3,883

 

 

 

$

53,220

 

 

$

49,676