Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Operating activities
Net loss	$ (47,262)	$ (35,321)	$ (23,063)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,647	3,362	5,239
Accretion of net premium on short-term investments	403	645	1,318
Stock-based compensation expense	10,162	11,366	11,428
Valuation allowance on deferred tax assets	0	0	(778)
Bad debt expense	189	95	33
Write-off of long-term investments	0	977	1,302
(Gain) loss on disposal of property and equipment	(14)	398	73
Changes in operating assets and liabilities:
Accounts receivable	(15,807)	(5,817)	(10,764)
Deferred income taxes	(239)	109	1,342
Restricted cash	1,709	(231)	1,117
Income taxes receivable	654	5,393	852
Deferred costs	(42,016)	(8,935)	(2,641)
Prepaid expenses and other current assets	459	(592)	5,133
Other assets	483	972	550
Trade accounts payable	1,195	4,118	328
Accrued expenses and other liabilities	13,778	4,730	(2,258)
Income taxes payable	109	(636)	(80)
Deferred rent	66	(272)	(1,219)
Deferred revenue	64,032	16,541	4,392
Net cash used in operating activities	(9,452)	(3,098)	(7,696)
Investing activities
Purchases of property and equipment	(1,225)	(4,004)	(1,208)
Purchases of short-term investments	(64,957)	(55,021)	(113,144)
Proceeds from sales and maturities of short-term investments	74,878	67,578	132,528
Purchases of long-term investments	0	0	(2,500)
Proceeds from sales of long-term investments	246	0	376
Net cash provided by investing activities	8,942	8,553	16,052
Financing activities
Proceeds from exercise of stock options	2,738	1,549	4,412
Repurchase of common stock	0	(570)	(3,780)
Tax withholdings related to net share settlements of restricted stock units	(3,008)	(3,295)	(3,103)
Net cash used in financing activities	(270)	(2,316)	(2,471)
Effect of exchange rate changes on cash and cash equivalents	188	(511)	(1,698)
Net increase (decrease) in cash and cash equivalents	(592)	2,628	4,187
Cash and cash equivalents, at beginning of period	21,349	18,721	14,534
Cash and cash equivalents, at end of period	20,757	21,349	18,721
Supplemental disclosure of cash flow information
Income taxes paid (received), net	$ 1,872	$ (4,610)	$ (10,754)