Net Loss Per Common Share - Schedule of all potentially dilutive securities excluded from the computation of basic and diluted net income (loss) per common share (Details) - shares shares in Thousands	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	7,874	16,380
Stock options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	2,672	2,510
RSUs, PSUs and MSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)	5,202	5,492
3.50% Convertible Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted net income (loss) per share (in shares)		8,378