CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 35,000	$ 36,771
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,791	1,547
Net foreign currency gains	(745)	(1,189)
Stock-based compensation	4,958	4,423
Deferred income taxes	(46)	0
Provision for (recovery from) bad debts	(7)	26
Tax benefits from stock-based compensation	584	1,577
Excess tax benefits from stock-based compensation	(584)	(1,577)
Other non-cash operating activities	90	159
Changes in assets and liabilities:
Accounts receivable	(1,355)	8,769
Prepaid expenses, prepaid income taxes, and other assets	1,885	812
Accounts payable, accrued expenses, income taxes payable and other liabilities	12,520	2,348
Deferred revenue	(27,841)	(35,220)
Net cash provided by operating activities	26,250	18,446
Cash flows from investing activities:
Purchases of marketable securities	(193,748)	0
Maturities of marketable securities	53,184	10,370
Purchases of property, equipment and leasehold improvements	(898)	(1,119)
Payments for business acquisitions	(5,400)	0
Payments for capitalized computer software costs	(51)	0
Net cash (used in) provided by investing activities	(146,913)	9,251
Cash flows from financing activities:
Exercises of stock options	3,089	611
Repurchases of common stock	(151,621)	(55,033)
Payments of tax withholding obligations related to restricted stock	(1,297)	(1,125)
Excess tax benefits from stock-based compensation	584	1,577
Net cash used in financing activities	(149,245)	(53,970)
Effect of exchange rate changes on cash and cash equivalents	(51)	(237)
Decrease in cash and cash equivalents	(269,959)	(26,510)
Cash and cash equivalents, beginning of period	318,336	156,249
Cash and cash equivalents, end of period	48,377	129,739
Supplemental disclosure of cash flow information:
Income taxes paid, net	1,239	2,895
Interest paid	850	1
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	506	(631)
Change in common stock repurchases included in accrued expenses	$ (1,621)	$ 33