Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 191,995	$ 154,196
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	23,184	20,783
Non-cash stock-based compensation expense	20,496	24,213
Net gain on sale of marketable securities and other investments	(662)	(1,047)
Changes in assets and liabilities:
Decrease (increase) in accounts receivable, net	129,227	(50,342)
Increase in inventories, net	(43,699)	(63,450)
Decrease in other assets	91,789	10,870
Increase (decrease) in accounts payable	(28,558)	30,096
Decrease in deferred system profit	(56,216)	(3,101)
Decrease in other liabilities	(108,571)	(26,690)
Net cash provided by operating activities	218,985	95,528
Cash flows from investing activities:
Capital expenditures, net	(12,128)	(11,163)
Purchase of available-for-sale securities	(303,101)	(228,951)
Proceeds from sale and maturity of available-for-sale securities	268,931	239,650
Purchase of trading securities	(18,586)	(16,004)
Proceeds from sale of trading securities	16,176	30,623
Net cash provided by (used in) investing activities	(48,708)	14,155
Cash flows from financing activities:
Issuance of common stock	9,702	2,953
Tax withholding payments related to vested and released restricted stock units	(17,930)	(9,517)
Common stock repurchases	(66,392)	(62,156)
Payment of dividends to stockholders	(58,460)	(41,785)
Net cash used in financing activities	(133,080)	(110,505)
Effect of exchange rate changes on cash and cash equivalents	(2,579)	9,288
Net increase in cash and cash equivalents	34,618	8,466
Cash and cash equivalents at beginning of period	711,329	529,918
Cash and cash equivalents at end of period	745,947	538,384
Supplemental cash flow disclosures:
Income taxes paid, net	37,391	46,060
Interest paid	$ 611	$ 352