Subsequent Events Tranzact (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2014 Tranzact [Member] Subsequent Event [Member]	Oct. 10, 2014 Tranzact [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Ownership interest (as a percent)				63.20%
Payments to Acquire Businesses and Interest in Affiliates	$ 32.2	$ 9.2	$ 177.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				281.2
Business Acquisition, Return of Capital				$ 44.2