Accumulated other comprehensive income (Tables)

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Components of Changes in Accumulated Other Comprehensive Income

The components of and changes in accumulated other comprehensive income were as follows:

(U.S. Dollars, in thousands)	Foreign Currency Translation Adjustments		Fair Value of Cross-Currency Swap			Accumulated Other Comprehensive Income
Balance at December 31, 2013	$	2,846	$	(147	)	$	2,699
Unrealized gain on cross-currency swap, net of tax of $25		—		103			103
Foreign currency translation adjustment (1)		439		—			439
Balance at March 31, 2014	$	3,285	$	(44	)	$	3,241

(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.