Restructuring and Severance (Details) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2017 USD ($) facility	Mar. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Facility closing
Restructuring and Severance
Number of facilities being exited | facility	3
Exit costs	$ 5.4
Lease liability current	1.7		$ 1.7
Lease liability noncurrent	3.7		3.7
Accelerated depreciation	1.4
Deferred rent and tenant improvements written off	1.9
Facility closing | Selling, administrative and other operating expenses
Restructuring and Severance
Net impact of facility exit activity	4.9	$ 0.0		$ 0.0
Employee severance
Restructuring and Severance
Severance costs	$ 2.3	$ 0.2	$ 3.3	$ 1.0