Long-Term Obligations and Other Short-Term Borrowings - Additional Information (Detail) € in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 09, 2016 EUR (€)
Schedule Of Debt [Line Items]
Letters of Credit Outstanding, Amount	$ 12.0
Amortization of Debt Issuance Costs	2.3	$ 1.8
Unamortized Debt Issuance Expense	$ 11.5	7.7
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Net, Classification	6.9
Long-term Debt and Capital Lease Obligations	$ 2,055.1	1,832.8
Repayments of Long-term Debt	$ 218.5	18.6	$ 879.8
Senior Secured Credit Facility [Member]
Schedule Of Debt [Line Items]
Pledge Percentage Of Capital Stock	100.00%
Pledge Percentage Of Equity Interest	100.00%
Maximum Percentage Of Voting Stock from non US subsidiary	65.00%
Term Loan Three Facility Dollar Denominated [Member]
Schedule Of Debt [Line Items]
Debt and Capital Lease Obligations	$ 1,244.2	1,454.2
Repayments of Long-term Debt	200.0
Term Loan Three Facility Euro Denominated [Member]
Schedule Of Debt [Line Items]
Debt and Capital Lease Obligations	352.0	345.2
Four Point Seven Five Percent Senior Euro Denominated Notes [Member]
Schedule Of Debt [Line Items]
Debt and Capital Lease Obligations | €				€ 380.0
Revolving Credit Facility - Two [Member]
Schedule Of Debt [Line Items]
Repayments of Short-term Debt	81.0
Capital Lease Obligations [Member]
Schedule Of Debt [Line Items]
Debt and Capital Lease Obligations	53.3	51.4
Other Obligations [Member]
Schedule Of Debt [Line Items]
Debt and Capital Lease Obligations	5.9	$ 9.7
Associated Fees [Member]
Schedule Of Debt [Line Items]
Other Nonrecurring Expense	1.7
Financing Cost Expensed [Member]
Schedule Of Debt [Line Items]
Other Nonrecurring Expense	0.6
Unamortized Debt Discount and Deferred Financing Cost [Member]
Schedule Of Debt [Line Items]
Other Nonrecurring Expense	$ 2.0