CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 27,521	$ 26,373
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	3,135	2,008
Costs recognized on sale of acquired inventory	2,148	0
Deferred income taxes	(1,066)	811
Stock-based compensation expense	290	136
Excess tax benefit from stock option exercises	(7)	(83)
Losses by equity method investees	198	328
Other	19	46
Change in operating assets and operating liabilities:
Trade accounts and other receivables	1,591	(102)
Inventories	(226)	(273)
Prepaid expenses	(145)	(72)
Trade accounts payable and accrued expenses	1,598	(295)
Salaries, wages and related accruals	825	219
Income taxes payable	(1,449)	1,607
Net cash provided by operating activities	34,432	30,703
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of available-for-sale investments	(34,311)	(42,929)
Proceeds from sales of available-for-sale investments	10,195	19,308
Proceeds from maturities of available-for-sale investments	24,763	22,308
Additions to property and equipment	(1,096)	(1,052)
Increase in other long-term assets	(10,000)	0
Net cash used in investing activities	(10,449)	(2,365)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends	(10,026)	(9,629)
Proceeds from stock option exercises	45	867
Excess tax benefit from stock option exercises	7	83
Purchase of common stock for stock bonus plans	(907)	(294)
Repurchase of common stock	(10,675)	(1,940)
Net cash used in financing activities	(21,556)	(10,913)
Effect of exchange rate changes on cash and cash equivalents	(805)	3,448
Net increase in cash and cash equivalents	1,622	20,873
Cash and cash equivalents at beginning of period	77,613	94,139
Cash and cash equivalents at end of period	$ 79,235	$ 115,012