BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 30, 2011

Inventories

Inventories are accounted for at the lower of cost, determined on a first in, first out (“FIFO”) basis, or market. Inventories included on the condensed consolidated balance sheets consisted of:

	June 30,		December 31,
(in thousands of U.S. dollars)	2011		2010
Raw materials	$	28,439	$	27,035
Work in progress		10,780		14,952
Inventories	$	39,219	$	41,987

Summary of Costs and Ranges of Useful Lives of the Major Classes of Property, Plant and Equipment and Total Accumulated Depreciation related to Property, Plant and Equipment, Net

The following table summarizes the costs and ranges of useful lives of the major classes of property, plant and equipment and the total accumulated depreciation related to Property, plant and equipment, net included on the condensed consolidated balance sheets:

		June 30,			December 31,
	Useful Lives	2011			2010
	(in years)	(in thousands of U.S. dollars)
Land, at cost	N/A	$	7,208		$	7,195
Buildings, at cost	10 - 30		37,733			37,657
Machinery and equipment, at cost	3 - 20		231,694			225,762
Office furniture and equipment, at cost	3 - 10		226,827			221,804
Leasehold improvements, at cost	5 - 10		28,126			28,174
			531,588			520,592
Less accumulated depreciation			(369,189	)		(345,025	)
Property, plant and equipment, net		$	162,399		$	175,567