Property, Plant And Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	$ 41,679	$ 48,607
Less: accumulated depreciation and amortization	30,941	35,211
Net Property, Plant and Equipment	10,738	13,396
Building
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	280	0
Studios and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	0	3,702
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	5,420	6,144
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	9,828	9,096
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, gross	$ 26,151	$ 29,665