BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated other comprehensive income included the following:

	December 31,
(in thousands of U.S. dollars)	2012			2011
Unrealized changes in fair value of cash flow hedges, net of tax of $2,199 and $1,768, respectively	$	(3,551	)	$	(2,863	)
Foreign currency translation	7,125			5,638
Accumulated other comprehensive income	$	3,574		$	2,775

Inventories

Inventories included on the consolidated balance sheets consisted of:

	December 31,
(in thousands of U.S. dollars)	2012		2011
Raw materials	$	30,960	$	28,075
Work in progress	12,293		13,045
Inventories	$	43,253	$	41,120

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

		December 31,
	Useful Lives	2012			2011
	(in years)	(in thousands of U.S. dollars)
Land, at cost	N/A	$	7,185		$	7,167
Buildings, at cost	10 - 30	37,961			37,511
Machinery and equipment, at cost	3 - 20	228,605			217,764
Office furniture and equipment, at cost	3 - 10	233,948			236,994
Leasehold improvements, at cost	5 - 10	28,916			28,563
		536,615			527,999
Less accumulated depreciation		(410,783		)	(379,094		)
Property, plant and equipment, net		$	125,832		$	148,905