Fair Value Measurements Fair Value Disclosure Narrative (Details) - USD ($) $ in Millions			6 Months Ended	12 Months Ended
	Jan. 19, 2016	Oct. 03, 2014	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payments for contingent consideration				$ (9.9)	$ 0.0	$ 0.0
Business Combination, Expected Contingent Consideration Payment				0.2
Payments to Acquire Businesses, Net of Cash Acquired				67.3	104.5	$ 0.1
Change in fair value of contingent consideration			$ 8.2	8.7	$ (7.4)
Long-term Debt, Fair Value				$ 100.1
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities Maturity Period				1 year
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities Maturity Period				90 days
ClinIntel Acquisition [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payments for contingent consideration				$ (14.1)
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 16.2
Business Combination, Contingent Consideration Payment Period		21 months
Business Combination, Billing Goal During Contingent Consideration Payment Period				$ 13.4
Payments to Acquire Businesses, Net of Cash Acquired		$ 8.8
Health Advances Acquisition [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 15.8
Business Combination, Contingent Consideration Payment Period	36 months
Payments to Acquire Businesses, Net of Cash Acquired	$ 67.1