SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies Abstract

Schedule of depreciation expense on property pland and equipment

	Property And Equipment
	Years Ended December 31,
	2012		2011		2010
	(amounts in thousands)
Depreciation expense	$	9,903	$	10,325	$	11,363

Schedule of property plant and equipment by category

	Depreciation Period		Property And Equipment
	In Years		December 31,
	From	To	2012		2011
			(amounts in thousands)
Land, land easements and land improvements	0	15	$	16,640	$	16,617
Buildings	20	20		21,535		21,547
Equipment	3	20		123,979		122,626
Furniture and fixtures	5	10		14,690		15,152
Leasehold improvements	shorter of economic life
	or lease term			21,485		21,361
				198,329		197,303
Accumulated depreciation				(148,605)		(140,908)
				49,724		56,395
Capital improvements in progress				1,953		1,973
Net property and equipment			$	51,677	$	58,368

Schedule of Deferred Revenue, by Arrangement

		Unearned Revenues
		December 31,
	Balance Sheet Location	2012		2011
		(amounts in thousands)
Current	Accrued compensation and other current liabilities	$	291	$	147
Long-term	Other long-term liabilities	$	125	$	5