Property Table 5 - Schedule of Loss from Discontinued Operations 3B (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	$ 5,080	$ 7,587	$ 7,523
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period	(813)	(1,231)	(1,116)
Disposal Group, Including Discontinued Operation, Operating Expense	(699)	(1,248)	(1,221)
Provision for Doubtful Accounts Discontinued Operations	(31)	(272)	(9)
General and Administrative Expenses Discontinued operations	(106)	(69)	(36)
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	(913)	(14,934)	0
Depreciation and Amortization, Discontinued Operations	(1,125)	(2,592)	(2,896)
Disposal Group, Including Discontinued Operation, Interest Expense	$ (4,441)	$ (4,128)	$ (3,544)