Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 1,396,439	$ 1,411,917
Accumulated depreciation and amortization	(1,035,994)	(983,449)
Property and equipment, net	360,445	428,468
Kiosks and components
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	1,164,339	1,165,925
Computers, servers, and software
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	196,280	200,915
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	23,025	29,625
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	7,465	9,218
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 5,330	$ 6,234