Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (13.2)	$ (0.4)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		0.8
Share-based compensation	$ 1.2	1.0
Change in operating assets and liabilities:
Accounts receivables	7.5	2.0
Prepaid expenses and other current assets	(0.9)	(0.3)
Accounts payable and accrued expenses	(2.8)	(13.7)
Net cash used in operating activities	(8.2)	(10.6)
Cash flows from investing activities:
Purchases of short and long-term investments	(6.4)	$ (9.9)
Maturity of short-term investments	$ 9.0
Call redemption of long-term investments		$ 6.9
Purchases of property and equipment
Net cash provided by (used in) investing activities	$ 2.6	$ (3.0)
Cash flows from financing activities:
Payment on note payable	(0.1)
Net cash used in financing activities	(0.1)
Decrease in cash and cash equivalents	(5.7)	$ (13.6)
Cash and cash equivalents at beginning of period	$ 44.7	81.7
Effects of exchange rate movements on cash and cash equivalents		(4.4)
Cash and cash equivalents at end of period	$ 39.0	$ 63.7