Restructuring Charges - 2016 Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Feb. 01, 2016
Restructuring Charges
Restructuring expenses	$ 213	$ 1,035	$ 1,235	$ 1,562
2016 Restructuring Plan
Restructuring Charges
Estimated restructuring charges					$ 20,000
Restructuring expenses	853	1,035	1,731	1,562
2016 Restructuring Plan | Employee separation costs (credits)
Restructuring Charges
Estimated restructuring charges					11,000
Restructuring expenses	293	210	707	(380)
2016 Restructuring Plan | Contract termination costs
Restructuring Charges
Estimated restructuring charges					1,000
2016 Restructuring Plan | Facility closure costs
Restructuring Charges
Estimated restructuring charges					$ 8,000
Restructuring expenses	$ 560	$ 825	$ 1,024	$ 1,942