Equity (Details 9) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2012 Additional paid-in capital	Dec. 31, 2012 Additional paid-in capital	Jan. 31, 2012 Output U.K.	Dec. 31, 2011 Output U.K.	Nov. 30, 2011 Output U.K.	Jun. 30, 2010 Output U.K.	Jul. 30, 2010 Output U.K. dsicmm Group Limited Preliminary
Non-controlling investor group in Company's IOS subsidiary as a result of the acquisition of dsicmm
Non-controlling interest, percentage owned								27.30%	29.50%
Non-controlling interest
Fair value of subsidiary shares issued to former shareholders of acquiree										$ 22.2
Equity associated with non-controlling interest of IOS							15.7
Repurchase of remaining shares held by non-controlling investor group		17.7		2.0	2.0	17.7
Net loss attributable to non-controlling interests	$ 0	$ 0	$ (4.9)				$ 4.9