CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 34,755	$ 35,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,753	1,791
Net foreign currency (gains) losses	936	(745)
Stock-based compensation	6,414	4,958
Deferred income taxes	(33)	(46)
Provision for (recovery from) bad debts	20	(7)
Tax benefits from stock-based compensation	0	584
Excess tax benefits from stock-based compensation	0	(584)
Other non-cash operating activities	0	90
Changes in assets and liabilities:
Accounts receivable	(504)	(1,355)
Prepaid expenses, prepaid income taxes, and other assets	2,292	1,885
Accounts payable, accrued expenses, income taxes payable and other liabilities	6,764	12,520
Deferred revenue	(40,037)	(27,841)
Net cash provided by operating activities	12,360	26,250
Cash flows from investing activities:
Purchases of marketable securities	0	(193,748)
Maturities of marketable securities	0	53,184
Purchases of property, equipment and leasehold improvements	(123)	(898)
Payments for business acquisitions	0	(5,400)
Payments for capitalized computer software costs	(65)	(51)
Net cash used in investing activities	(188)	(146,913)
Cash flows from financing activities:
Exercises of stock options	2,411	3,089
Repurchases of common stock	(55,109)	(151,621)
Payments of tax withholding obligations related to restricted stock	(1,650)	(1,297)
Deferred business acquisition payment	(600)	0
Excess tax benefits from stock-based compensation	0	584
Payments of credit agreement issuance costs	(351)	0
Net cash used in financing activities	(55,299)	(149,245)
Effect of exchange rate changes on cash and cash equivalents	156	(51)
Decrease in cash and cash equivalents	(42,971)	(269,959)
Cash and cash equivalents, beginning of period	101,954	318,336
Cash and cash equivalents, end of period	58,983	48,377
Supplemental disclosure of cash flow information:
Income taxes paid, net	1,243	1,239
Interest paid	968	850
Supplemental disclosure of non-cash investing and financing activities:
Change in purchases of property, equipment and leasehold improvements included in accounts payable and accrued expenses	(70)	506
Change in common stock repurchases included in accrued expenses	$ (5,109)	$ (1,621)