LEASES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
LEASES
Rental expense	$ 15,221	$ 14,155	$ 14,275
Total future minimum lease payments for noncancelable operating leases
2012	10,620
2013	7,720
2014	5,443
2015	3,839
2016	3,330
Thereafter	5,264
Assets held under capital leases
Less: accumulated depreciation	(2,494)	(2,134)
Net capital leases	3,921	5,299
Buildings
Assets held under capital leases
Gross capital leases	6,236	6,449
Machinery and equipment
Assets held under capital leases
Gross capital leases	$ 179	$ 984

Property, plant, or equipment held under lease agreements classified as an asset.

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