CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 106,625	$ 87,601
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,519	4,616
Net foreign currency losses (gains)	1,421	(2,715)
Stock-based compensation	12,313	11,122
Deferred income taxes	695	21,317
Provision for (recovery from) bad debts	174	(471)
Tax benefits from stock-based compensation	1,878	21,843
Excess tax benefits from stock-based compensation	(1,878)	(21,843)
Other non-cash operating activities	257	1,401
Changes in assets and liabilities:
Accounts receivable	8,513	10,897
Prepaid expenses, prepaid income taxes, and other assets	3,446	6,069
Accounts payable, accrued expenses, income taxes payable and other liabilities	(5,583)	(1,198)
Deferred revenue	(23,485)	(222)
Net cash provided by operating activities	108,895	138,417
Cash flows from investing activities:
Purchases of marketable securities	0	(50,065)
Maturities of marketable securities	52,965	66,923
Purchases of property, equipment and leasehold improvements	(2,530)	(5,914)
Acquisition related deposits	(255,067)	0
Payments for capitalized computer software costs	0	(315)
Net cash (used in) provided by investing activities	(204,632)	10,629
Cash flows from financing activities:
Exercises of stock options	2,862	2,046
Repurchases of common stock	(103,128)	(222,878)
Payments of tax withholding obligations related to restricted stock	(3,404)	(3,874)
Excess tax benefits from stock-based compensation	1,878	21,843
Proceeds from credit agreement	140,000	0
Payments of credit agreement issuance costs	(1,587)	0
Net cash provided by (used in) financing activities	36,621	(202,863)
Effect of exchange rate changes on cash and cash equivalents	(223)	(1,747)
Decrease in cash and cash equivalents	(59,339)	(55,564)
Cash and cash equivalents, beginning of period	156,249	199,526
Cash and cash equivalents, end of period	96,910	143,962
Supplemental disclosure of cash flow information:
Income taxes paid, net	51,612	2,933
Supplemental disclosure of non-cash investing and financing activities:
Change in landlord improvement allowance included in leasehold improvements and deferred rent liability	0	6,064
Change in purchases of property, equipment and leasehold improvements included in accounts payable and accrued expenses	(874)	1,913
Change in common stock repurchases included in accrued expenses	$ 1,938	$ 2,450