Goodwill and Other Intangible Assets (Details) ₪ in Millions, $ in Millions	1 Months Ended	2 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Feb. 23, 2015 ILS (₪)	Feb. 23, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 01, 2015 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates				$ 33.3	$ 32.2
Assets	$ 10,346.0			10,346.0				$ 10,455.7
Goodwill	189.3			189.3	23.8		$ 169.2	168.9	$ 23.8	$ 0.0
Intangible Assets, Net (Excluding Goodwill)	192.4			192.4	$ 42.0		$ 171.2	182.3	$ 44.6	$ 5.1
Liabilities	6,139.7			$ 6,139.7				$ 5,917.3
TruBridge [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Enterprise Value of Subsidiary						$ 50.2
TruBridge [Member] | Common Stock
Acquired Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)						100.00%
Cashboard [Member] | Common Stock
Acquired Finite-Lived Intangible Assets [Line Items]
Ownership interest (as a percent)			56.20%				68.30%
Common Stock | TruBridge [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates	$ 31.0
Common Stock | Israel, New Shekels | Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates | ₪		₪ 9.5
Common Stock | United States of America, Dollars | Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Payments to Acquire Businesses and Interest in Affiliates			$ 2.4
TruBridge [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Assets						$ 53.8
Goodwill						20.1
Intangible Assets, Net (Excluding Goodwill)						28.1
Liabilities						$ 3.6
Cashboard [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Assets			5.5
Goodwill			0.3
Intangible Assets, Net (Excluding Goodwill)			2.8
Liabilities			$ 1.2