Restructuring Charges - 2016 Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Feb. 01, 2016
Restructuring Charges
Restructuring expenses	$ 452	$ 1,421	$ 1,687	$ 2,983
2016 Restructuring Plan
Restructuring Charges
Estimated restructuring charges					$ 21,000
Restructuring expenses	541	1,421	2,272	2,983
2016 Restructuring Plan | Employee separation costs (credits)
Restructuring Charges
Estimated restructuring charges					11,000
Restructuring expenses	377	339	1,084	(41)
2016 Restructuring Plan | Contract termination costs
Restructuring Charges
Estimated restructuring charges					1,000
2016 Restructuring Plan | Facility closure costs
Restructuring Charges
Estimated restructuring charges					$ 9,000
Restructuring expenses	$ 164	$ 1,082	$ 1,188	$ 3,024