OBLIGATIONS UNDER CAPITAL LEASES (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Building and Building Improvements [Member] Virginia Warehouse Facility [Member]	Dec. 31, 2011 Building and Building Improvements [Member] Bristol, Pennsylvania Facility [Member] Integer
OBLIGATIONS UNDER CAPITAL LEASES [Abstract]
Warehouses, office facilities and equipment	$ 25.2	$ 26.9
Less: current portion	1.9	1.7
Obligations under capital leases - noncurrent	23.3	25.2
Capital Leased Assets [Line Items]
Term of leased office facility (in years)				20
Minimum annual rent payments			2.4	1.1
Capitalized amount of leased building			25.6	12.2
Deferred gain on sale-leaseback agreement			7.5
Future minimum lease payment [Abstract]
2012	3.6
2013	3.6
2014	3.7
2015	3.7
2016	3.7
Later years	17.4
Total minimum lease payments	35.7
Less: amount representing interest	10.5
Present value of net minimum lease payments	$ 25.2