Segment Information - Revenue By Service and Product Solution (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenue from External Customer [Line Items]
Services	$ 382,218	$ 396,865
Products	251,293	301,626
Revenue, Net	633,511	698,491
Financial self-service [Member]
Revenue from External Customer [Line Items]
Services	280,283	299,935
Products	215,467	261,067
Revenue, Net	495,750	561,002
Security [Member]
Revenue from External Customer [Line Items]
Services	101,935	96,840
Products	35,317	38,033
Revenue, Net	137,252	134,873
Financial Self Service And Security [Member]
Revenue from External Customer [Line Items]
Revenue, Net	633,002	695,875
Election And Lottery Systems [Member]
Revenue from External Customer [Line Items]
Revenue, Net	$ 509	$ 2,616