PROPERTY AND EQUIPMENT (Details) (USD $) In Thousands	Sep. 30, 2011	Sep. 30, 2010
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 435,694	$ 407,457
Less: Accumulated depreciation and amortization	(265,844)	(236,689)
Property and equipment, net	169,850	170,768
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,644	18,644
Construction in process [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,237	2,111
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	77,898	65,711
Buildings, leasehold and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	180,392	174,680
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 156,523	$ 146,311