Unconsolidated Affiliates (Details 3) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 27, 2017	Sep. 30, 2016	Mar. 29, 2016
Amounts and transactions with related party unconsolidated affiliates
Operating revenues from unconsolidated affiliates		$ 150.7	$ 150.3	$ 148.8
Unconsolidated affiliates
Amounts and transactions with related party unconsolidated affiliates
Operating revenues from unconsolidated affiliates		138.5	134.9	135.1
Amounts paid to unconsolidated affiliates for products, services and leases	[1]	36.8	27.3	23.8
Distributions received from unconsolidated affiliates		3.5	15.3	$ 12.6
Advances/Loans to unconsolidated affiliates		31.4	6.4
Trade accounts receivable from unconsolidated affiliates		19.7	20.8
Total amounts receivable from unconsolidated affiliates		51.1	27.2
Amounts payable to unconsolidated affiliates	[1]	$ 3.4	$ 5.0
International Financial Data Services U.K.
Amounts and transactions with related party unconsolidated affiliates
Advances/Loans to unconsolidated affiliates						$ 13.0	$ 15.0
Subsequent event | International Financial Data Services U.K.
Amounts and transactions with related party unconsolidated affiliates
Advances/Loans to unconsolidated affiliates					$ 12.5

[1] Excludes amounts owed under or paid on the BFDS installment loan. See additional discussion of installment loan within Note 10, Debt.