Basis of Presentation and Summary of Significant Accounting Policies Recent Financial Accounting Standards (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other Assets, Noncurrent	$ 23.1		$ 23.1		$ 67.1
Assets, Current	882.6		882.6		790.2
Deferred income taxes	51.2		51.2		37.5
Deferred Tax Liabilities, Gross, Noncurrent	48.9		48.9		41.4
Accrued income tax	24.6		24.6		$ 38.8
Selling, general and administrative expenses	96.2	$ 93.0	194.4	$ 175.2
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	26.9	39.8	31.7	53.6
Income tax (benefit)/expense	9.5	9.2	9.7	11.2
Earnings from continuing operations	17.4	30.6	22.0	42.4
Net earnings	17.4	30.6	22.0	42.4
Net Income (Loss) Attributable to Parent	$ 17.4	$ 30.7	$ 22.0	$ 42.7
Earnings Per Share, Basic	$ 0.14	$ 0.25	$ 0.18	$ 0.34
Earnings Per Share, Diluted	$ 0.14	$ 0.24	$ 0.17	$ 0.34
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax (benefit)/expense				$ 14.1
Net earnings				39.5
Net Income (Loss) Attributable to Parent				$ 39.8
Earnings Per Share, Basic				$ 0.32
Earnings Per Share, Diluted				$ 0.32
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Income tax (benefit)/expense				$ 11.2
Net earnings				42.4
Net Income (Loss) Attributable to Parent				$ 42.7
Earnings Per Share, Basic				$ 0.34
Earnings Per Share, Diluted				$ 0.34
Accounting Standards Update 2016-16 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 34.2		$ 34.2
Other Assets, Noncurrent	45.6		45.6
Assets, Current	6.6		6.6
Deferred income taxes	14.7		14.7
Deferred Tax Liabilities, Gross, Noncurrent	$ 3.2		$ 3.2