Property and Equipment (Schedule of Property and Equipment) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 1,393,011	$ 1,391,545
Accumulated depreciation and amortization	(1,122,597)	(1,075,532)
Property and equipment, net	270,414	316,013
Kiosks and components
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	1,162,872	1,163,210
Computers, servers, and software
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	195,809	193,507
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	22,497	22,663
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	7,248	7,047
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 4,585	$ 5,118