CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 101,263	$ 161,863
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,471	4,857
Reduction in the carrying amount of right-of-use assets	5,109	4,779
Net foreign currency losses	2,307	2,054
Stock-based compensation	17,956	15,364
Deferred income taxes	(53,439)	212
Provision for receivables		4,736
Provision for receivables	1,477
Other non-cash operating activities	772	407
Changes in assets and liabilities:
Accounts receivable	15,311	8,372
Contract assets, net	(59,058)	(123,373)
Contract costs	(623)	321
Lease liabilities	(5,158)	(5,235)
Prepaid expenses, prepaid income taxes, and other assets	12,415	42
Accounts payable, accrued expenses, income taxes payable and other liabilities	39,267	(7,063)
Deferred revenue	(9,126)	6,954
Net cash provided by operating activities	73,944	74,290
Cash flows from investing activities:
Purchases of property, equipment and leasehold improvements	(659)	(522)
Payments for business acquisitions, net of cash acquired	0	(15,943)
Payments for equity method investments	(584)	(166)
Payments for capitalized computer software development costs	(330)	(895)
Net cash used in investing activities	(1,573)	(17,526)
Cash flows from financing activities:
Issuance of shares of common stock	14,307	3,114
Repurchases of common stock	(234,043)	0
Payment, Tax Withholding, Share-based Payment Arrangement	(10,296)	(4,107)
Repayments of amounts borrowed	(8,000)	(127,182)
Payments of debt issuance costs	(402)	0
Net cash used in financing activities	(239,654)	(128,175)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(1,171)	1,104
(Decrease) in cash, cash equivalents, and restricted cash	(168,454)	(70,307)
Cash and cash equivalents, beginning of period	379,853	287,796
Cash, cash equivalents, and restricted cash, end of period	211,399	217,487
Supplemental disclosure of cash flow information:
Income taxes paid, net	21,246	30,668
Interest paid	2,638	4,217
Supplemental disclosure of non-cash activities:
Change in purchases of property, equipment and leasehold improvements included in accounts payable and accrued expenses	(107)	57
Change in repurchases of common stock included in accounts payable and accrued expenses	(4,353)	0
Lease liabilities arising from obtaining right-of-use assets	1,632	1,291
Reconciliation to amounts within the unaudited consolidated balance sheets: [Abstract]
Restricted cash included in other non-current assets	0	2
Cash, cash equivalents, and restricted cash, end of period	211,399	217,489
Payments to Acquire Businesses, Gross	$ (1,220)	$ 0