Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 75,889	$ 85,356
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,779	11,046
Share-based compensation	10,741	11,526
Amortization of capitalized software	3,111	2,260
Provision for losses on accounts receivable	31	1,997
Litigation reserve, including interest expense	3,700	0
Gain on sales of auction rate securities	0	(4,094)
Other-than-temporary impairment losses on investments, net	0	600
Net gains on disposal of property, plant and equipment	0	(40)
Changes in operating assets and liabilities:
Decrease in accounts receivable	12,216	23,899
Increase in inventory	(7,377)	(7,244)
Increase in prepaid expenses and other assets	(4,053)	(6,303)
Decrease in accounts payable	(2,323)	(8,149)
Decrease in accrued expenses and other current liabilities	(9,585)	(31,809)
Increase (decrease) in income tax assets and liabilities	13,491	(4,053)
Decrease in deferred revenue	(5,414)	(9,257)
Net cash flows provided by operating activities	101,206	65,735
Cash flows from investing activities:
Proceeds from maturities of investments	139,476	23,824
Proceeds from sales of auction rate securities	0	36,719
Purchases of investments	(69,705)	(83,841)
Purchases of property, plant and equipment	(20,854)	(10,009)
Internally developed software costs	(3,769)	(2,225)
Other	45	(122)
Net cash flows provided by (used in) investing activities	45,193	(35,654)
Cash flows from financing activities:
Repurchases of common stock	(111,312)	(53,372)
Proceeds from stock option exercises	19,080	4,655
Principal payments on lines of credit	(1,795)	0
Realized tax benefits from stock option exercises	1,830	1,426
Cash paid for acquisition of non-controlling interest	0	(846)
Other	(174)	(51)
Net cash flows used in financing activities	(92,371)	(48,188)
Effect of exchange rate changes on cash and cash equivalents	9,163	7,431
Net increase (decrease) in cash and cash equivalents	63,191	(10,676)
Cash and cash equivalents at beginning of period	486,023	562,786
Cash and cash equivalents at end of period	$ 549,214	$ 552,110