Net income (loss) per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income from continuing operations	$ 3,335	$ 32
Loss on discontinued operations	0	(3,986)
Net income (loss)	$ 3,335	$ (3,954)
Shares used to compute basic income (loss) per share (in shares)	47,227	47,780
Dilutive potential common shares:
Shares used to compute diluted income (loss) per share (in shares)	47,841	49,648
Basic income (loss) per share:
Income from continuing operations (in dollars per share)	$ 0.07	$ 0
Loss on discontinued operations (in dollars per share)	0	(0.08)
Net income (loss) (in dollars per share)	0.07	(0.08)
Diluted income (loss) per share:
Income from continuing operations (in dollars per share)	0.07	0
Loss on discontinued operations (in dollars per share)	0	(0.08)
Net income (loss) (in dollars per share)	$ 0.07	$ (0.08)
Potential common stock equivalents not included in the calculation of diluted income per share as the effect would be anti-dilutive (in shares)	1,856	5,026
Performance-based restricted stock units
Diluted income (loss) per share:
Potential common stock equivalents not included in the calculation of diluted income per share as the effect would be anti-dilutive (in shares)	1,495	800
Stock options
Dilutive potential common shares:
Dilutive potential common shares (in shares)	0	527
Restricted stock units
Dilutive potential common shares:
Dilutive potential common shares (in shares)	577	1,341
Employee stock purchase plan
Dilutive potential common shares:
Dilutive potential common shares (in shares)	37	0