Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Classification:
Current deferred tax assets (included in Other current assets)	$ 19.3	$ 17.7
Long-term deferred tax assets (included in Other non-current assets)	1.5	1.3
Current deferred tax liabilities (included in Accrued expenses and other current liabilities)	(0.8)	(0.6)
Long-term deferred tax liabilities	(61.6)	(61.7)
Deferred tax assets:
Accrued expenses not currently deductible	4.0	4.3
Depreciation	21.1	19.6
Compensation and benefits not currently deductible	56.0	47.3
Net operating and capital losses	21.6	23.7
Tax credits	4.8	5.9
Other	5.1	4.9
Total deferred tax assets	112.6	105.7
Less: Valuation allowances	(9.8)	(9.2)
Deferred tax assets, net	102.8	96.5
Deferred tax liabilities:
Goodwill and identifiable intangibles	120.3	116.4
Net deferred expenses	16.5	16.9
Other	7.6	6.5
Deferred taxes	144.4	139.8
Deferred tax liabilities	$ (41.6)	$ (43.3)