LEASE COMMITMENTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
LEASE COMMITMENTS
Rent expense under operating leases	$ 27,558	$ 23,382	$ 24,129
Assets recorded under capital leases
Assets recorded under capital leases, Gross	16,861	30,666
Accumulated depreciation	(10,255)	(19,053)
Assets recorded under capital leases, Net	6,606	11,613
Future minimum payments under capital leases, by year and in the aggregate
2012	854
2013	584
2014	584
2015	547
2016	531
Subsequent to 2016	1,613
Total minimum lease payments	4,713
Amounts representing interest	(1,341)
Present value of future minimum lease payments	3,372
Lease amount due in one year	(705)
Total	2,667
Future minimum payments under noncancelable operating leases, by year and in the aggregate
2012	14,549
2013	9,814
2014	7,297
2015	5,328
2016	3,595
Subsequent to 2016	7,146
Total minimum lease payments	47,729
Buildings
Assets recorded under capital leases
Assets recorded under capital leases, Gross	16,861	21,663
Machinery and equipment
Assets recorded under capital leases
Assets recorded under capital leases, Gross		$ 9,003