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Segment Information, Geographic and Product Data - Schedule of Net Sales by Geographic Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Geographic Data
Net sales	$ 641.4	$ 609.9	$ 556.5	$ 572.4	$ 618.0	$ 572.2	$ 487.8	$ 479.8	$ 2,380.2	$ 2,157.7	$ 1,797.6
United States
Geographic Data
Net sales									1,606.7	1,429.4	1,198.3
Europe
Geographic Data
Net sales									387.2	383.0	349.6
Asia Pacific
Geographic Data
Net sales									196.3	174.8	127.2
Mexico
Geographic Data
Net sales									81.6	61.7	48.5
Canada
Geographic Data
Net sales									67.8	65.7	47.7
Other
Geographic Data
Net sales									$ 40.6	$ 43.1	$ 26.3

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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