Property, plant and equipment

12 Months Ended

Dec. 31, 2014

Property Plant And Equipment [Abstract]

3.	Property, plant and equipment

	December 31,
(U.S. Dollars in thousands)	2014			2013
Cost
Buildings	$	3,683		$	4,075
Plant, equipment and instrumentation		140,110			133,427
Furniture and fixtures		5,779			5,872
		149,572			143,374
Accumulated depreciation		(101,023	)		(89,002	)
	$	48,549		$	54,372

Included within plant, equipment and instrumentation is capitalized computer software of $9.0 million and $6.6 million net of accumulated amortization as of December 31, 2014 and 2013, respectively. Amortization of computer software for the years ended December 31, 2014, 2013 and 2012 was $3.0 million, $2.7 million and $2.0 million, respectively.

Total depreciation expense, for the years ended December 31, 2014, 2013 and 2012 was $20.6 million, $20.0 million and $15.8 million, respectively.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

+ References+ Details