CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 13,632	$ 10,281
Adjustments to reconcile net income to net cash provided by operating activities:
Benefit from deferred income taxes	(576)	(116)
Share-based compensation	3,469	2,800
Depreciation and amortization	577	537
Net gains on investments	(396)	(115)
Net (income)/loss from equity method investments	(165)	44
Amortization of bond premiums	10	21
Excess income tax benefit from share-based compensation	(5,303)	(1,715)
Income tax benefit from dividends paid on unvested shares	(424)	(433)
(Increase)/decrease in operating assets:
Accounts receivable	(2,710)	(345)
Prepaid taxes and other current assets	(6,988)	(884)
Trading securities	1,165	(6,777)
Increase/(decrease) in operating liabilities:
Accounts payable and accrued liabilities	3,866	91
Accrued compensation and benefits	2,729	6,787
Income taxes payable	3,607	1,499
Deferred rent	1,142	(82)
Net cash provided by operating activities	13,635	11,593
Cash flows from investing activities:
Proceeds from available-for-sale securities, net	1,930	1,745
Proceeds from equity method investments	1,000
Proceeds from redemption of held-to-maturity securities	700
Capital expenditures	(5,165)	(173)
Security deposits	(34)	101
Net cash (used in)/provided by investing activities	(1,569)	1,673
Cash flows from financing activities:
Dividends	(22,051)	(3,265)
Repurchase of common shares	(134)	(1,943)
Excess income tax benefit from share-based compensation	5,303	1,715
Income tax benefit from dividends paid on unvested shares	424	433
Proceeds from stock option exercises	1,730	357
Net cash used in financing activities	(14,728)	(2,703)
Net (decrease)/increase in cash and cash equivalents during period	(2,662)	10,563
Cash and cash equivalents at beginning of period	24,528	29,128
Cash and cash equivalents at end of period	21,866	39,691
Supplemental disclosure of cash flow information:
Cash paid for income taxes	13,051	7,392
Supplemental disclosures of non-cash investing activities:
Net change in unrealized gains/(losses) on available-for-sale securities, net of tax-(Note 9)	(35)	(289)
Dividends declared but not yet paid		$ 17,487