Fixed Assets (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 60,894,000	$ 62,205,000	$ 60,894,000
Less: Accumulated depreciation and amortization	(23,852,000)	(30,003,000)	(23,852,000)
Property, Plant and Equipment, Net	37,042,000	32,202,000	37,042,000
Depreciation		6,700,000	7,400,000	5,700,000
Depreciation and Amortization, Discontinued Operations	8,800,000
Net Income (Loss) from Discontinued Operations, Net of Taxes [Member]
Property, Plant and Equipment [Line Items]
Depreciation and Amortization, Discontinued Operations			7,500,000
Depreciation and Amortization Expense [Member]
Property, Plant and Equipment [Line Items]
Depreciation and Amortization, Discontinued Operations			1,300,000
Telephone and computer equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	12,828,000	13,215,000	12,828,000
Computer software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	5,419,000	5,928,000	5,419,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	5,997,000	6,265,000	5,997,000
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	30,264,000	30,412,000	30,264,000
Assets acquired under capital leases - equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	6,337,000	6,337,000	6,337,000
Depreciation		1,300,000	500,000
Other Capitalized Property Plant and Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 49,000	$ 48,000	$ 49,000