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Other current liabilities (Tables)
 12 Months Ended
Dec. 31, 2017
Payables And Accruals [Abstract]  
Summary of Other Current Liabilities

 

 

 

December 31,

 

(U.S. Dollars, in thousands)

 

2017

 

 

2016

 

Accrued expenses

 

$

6,984

 

 

$

6,155

 

Salaries, bonuses, commissions and related taxes payable

 

 

24,635

 

 

 

19,636

 

Accrued distributor commissions

 

 

9,192

 

 

 

9,379

 

Accrued legal and settlement expenses

 

 

7,673

 

 

 

23,081

 

Non-income taxes payable

 

 

3,180

 

 

 

7,301

 

Other payables

 

 

9,631

 

 

 

3,536

 

Other current liabilities

 

$

61,295

 

 

$

69,088