Fair Value Measurements Fair Value Measurements Narrative (Details) - USD ($) $ in Millions			3 Months Ended	6 Months Ended
	Feb. 10, 2016	Jan. 19, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Unrealized Gain (Loss) on Derivatives and Commodity Contracts			$ 20.3
Forward Contract Indexed to Issuer's Equity, Classification			40
Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value			$ 19.7	$ 19.7
Business Combination, Contingent Consideration, Liability			14.0	14.0		$ 5.2
Payments to Acquire Businesses, Net of Cash Acquired				148.3	$ 0.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings				0.6	$ (8.2)
Long-term Debt, Fair Value			96.5	96.5
Health Advances Acquisition [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability			4.5	4.5
Payments to Acquire Businesses, Net of Cash Acquired	$ 67.1	$ 67.1
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 15.8
Fair Value, Inputs, Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability			0.6	0.6		$ 5.2
Fair Value, Inputs, Level 3 [Member] | Health Advances Acquisition [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability			$ 4.6	$ 4.6