PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012		Mar. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Total cost	$ 466,116		$ 482,682
Less: Accumulated depreciation	(272,466)		(275,976)
Total net book value	193,650	[1]	206,706	[1]	219,877	217,367
Assets held under capital leases (included in the above)	8,303		9,834
Less: Accumulated depreciation	(3,152)		(3,077)
Net book value	5,151		6,757
Land and buildings [Member]
Property, Plant and Equipment [Line Items]
Total cost	158,918		164,395
Assets held under capital leases (included in the above)	4,571		6,042
Machinery, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	208,028		215,776
Assets held under capital leases (included in the above)	3,732		3,792
Other equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	36,644		38,091
Software licenses [Member]
Property, Plant and Equipment [Line Items]
Total cost	48,941		49,466
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 13,585		$ 14,954

[1] Reflects property, plant and equipment.