Restructuring Charges - 2016 Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Restructuring Charges
Restructuring expenses	$ 191	$ 452	$ 1,771	$ 1,687
2016 Restructuring Program
Restructuring Charges
Aggregate restructuring charges		21,000		21,000
Restructuring expenses		541		2,272
2016 Restructuring Program | Employee separation costs
Restructuring Charges
Aggregate restructuring charges		11,000		11,000
Restructuring expenses		377		1,084
2016 Restructuring Program | Contract termination costs
Restructuring Charges
Aggregate restructuring charges		1,000		1,000
2016 Restructuring Program | Facility closure costs
Restructuring Charges
Aggregate restructuring charges		9,000		9,000
Restructuring expenses		$ 164		$ 1,188