Derivative instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of Fair Values of Derivative Instruments

The tables below disclose the types of derivative instruments the Company owns, the classifications and fair values of these instruments within the balance sheet, and the amount of gain (loss) recognized in other comprehensive income (loss) (“OCI”) or net income (loss):


(U.S. Dollars, in thousands)	Fair value: favorable (unfavorable)		Balance sheet location
As of December 31, 2012
Cross-currency swap	$	305	Other long-term assets

As of December 31, 2011
Cross-currency swap	$	1,011	Other long-term assets

Schedule of Gain (Loss) Recognized on Derivative Instruments


	For the year ended December 31,
(U.S. Dollars, in thousands)	2012		2011			2010
Interest rate swap gain recognized in net income (loss)	$	—	$	—		$	1,254
Cross-currency swap gain (loss) recorded in other comprehensive income (loss), net of taxes		263		(437	)		(90	)

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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- Definition

Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.

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