Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 254,850	$ 226,986	$ 190,085
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	85,856	70,616	61,563
Provision for warranties	(1,050)	4,449	3,197
Deferred income taxes	(12,622)	3,356	3,323
Foreign currency revaluation	(13,652)	(17,261)	(7,287)
Stock-based compensation costs	30,586	30,809	29,734
Tax benefit from stock options exercised	(8,748)	(14,510)	(13,169)
Impairment of long lived asset	0	2,257	0
Gain on previously held equity interest resulting from business combination	(2,070)	0	0
Impairment of cost-method investments	4,016	0	250
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net	(20,293)	(30,799)	(24,742)
Inventories, net	18,806	11,394	(32,272)
Prepaid expenses and other current assets	(25,316)	8,678	(16,012)
Accounts payable, accrued expenses, income taxes and other liabilities	72,796	(12,785)	(6,457)
Net cash provided by operating activities	383,159	283,190	188,213
Cash flows from investing activities:
Purchases of property, plant and equipment	(47,135)	(66,609)	(56,855)
Purchases of cost-method investments	(4,796)	(2,426)	0
Proceeds from disposal of cost method investment	499	0	0
Proceeds from sale of maturing investment securities	0	3,950	1,050
Patent registration costs	(6,972)	(6,431)	(4,786)
Proceeds from disposal of business assets and contracts	0	0	454
Purchases of other intangible assets	(7,000)	0	0
Business acquisitions, net of cash acquired	(53,322)	(22,450)	(10,660)
Purchases of foreign currency contracts	(1,464)	(1,956)	(1,725)
Proceeds from exercise of foreign currency contracts	18,575	19,411	14,211
Net cash used in investing activities	(101,615)	(76,511)	(58,311)
Cash flows from financing activities:
Proceeds from issuance of common stock, net	62,491	94,650	95,222
Repayment of borrowings	(125,985)	(123,591)	(38,438)
Proceeds from borrowings, net of borrowing costs	270,384	98,430	0
Tax benefit from stock option exercises	8,748	14,510	13,169
Purchases of treasury stock	(392,743)	(163,342)	(131,082)
Net cash used in financing activities	(177,105)	(79,343)	(61,129)
Effect of exchange rate changes on cash	(30,165)	119,155	4,353
Net increase in cash and cash equivalents	74,274	246,491	73,126
Cash and cash equivalents at beginning of the year	735,267	488,776	415,650
Cash and cash equivalents at end of the year	809,541	735,267	488,776
Supplemental disclosure of cash flow information:
Income taxes paid, net of refunds	55,206	85,104	96,674
Interest paid, net of capitalized interest	4,786	1,758	2,667
Fair value of assets acquired in acquisitions, excluding cash	24,648	18,442	7,937
Liabilities assumed	(5,056)	(450)	(3,909)
Goodwill on acquisition	51,798	5,758	8,715
Fair value of contingent consideration	(6,850)	(800)	(2,083)
Total purchase price	64,540	22,950	10,660
Less: Consideration not paid in the current period	(11,218)	(500)	0
Cash paid for acquisitions	$ 53,322	$ 22,450	$ 10,660