Consolidated Statements Of Cash Flows (USD $) In Thousands	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Cash flows from operating activities:
Net income	$ 226,986	$ 190,085	$ 146,448
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	70,616	61,563	53,963
Provision for warranties	4,449	3,197	2,219
Deferred income taxes	3,356	3,323	(26,658)
Foreign currency revaluation	(17,261)	(7,287)	16,829
Stock-based compensation costs	30,809	29,734	25,515
Tax benefit from stock options exercised	(14,510)	(13,169)	(3,870)
Impairment of long lived asset	2,257	0	0
Write-down of cost-method investments	0	250	1,306
Changes in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net	(30,799)	(24,742)	(32,897)
Inventories	11,394	(32,272)	(16,141)
Prepaid expenses and other current assets	8,678	(16,012)	20,916
Accounts payable, accrued expenses, income taxes and other liabilities	(12,785)	(6,457)	51,247
Net cash provided by operating activities	283,190	188,213	238,877
Cash flows from investing activities:
Purchases of property, plant and equipment	(66,609)	(56,855)	(109,692)
Proceeds from disposal of property, plant and equipment	0	0	1,763
Capitalized interest	0	0	(1,610)
Proceeds from sale of maturing investment securities	3,950	1,050	0
Patent registration costs	(6,431)	(4,786)	(4,528)
Proceeds from disposal of business assets and contracts	0	454	3,005
Business acquisitions, net of cash acquired	(22,450)	(10,660)	(2,394)
Purchases of cost-method investments	(2,426)	0	(2,267)
Purchases of foreign currency contracts	(1,956)	(1,725)	(2,439)
Proceeds from exercise of foreign currency contracts	19,411	14,211	8,863
Net cash used in investing activities	(76,511)	(58,311)	(109,299)
Cash flows from financing activities:
Proceeds from issuance of common stock, net	94,650	95,222	24,892
Repayment of borrowings	(123,591)	(38,438)	(38,435)
Proceeds from borrowings, net of borrowing costs	98,430	0	80,137
Tax benefit from stock option exercises	14,510	13,169	3,870
Purchases of treasury stock	(163,342)	(131,082)	(68,593)
Net cash (used in) provided by financing activities	(79,343)	(61,129)	1,871
Effect of exchange rate changes on cash	119,155	4,353	(36,877)
Net increase in cash and cash equivalents	246,491	73,126	94,572
Cash and cash equivalents at beginning of the year	488,776	415,650	321,078
Cash and cash equivalents at end of the year	735,267	488,776	415,650
Supplemental disclosure of cash flow information:
Income taxes paid, net of refunds	85,104	96,674	16,926
Interest paid, net of capitalized interest	1,758	2,667	5,967
Fair value of assets acquired in acquisitions, excluding cash	18,442	7,937	698
Liabilities assumed	(450)	(3,909)	(227)
Goodwill on acquisition	5,758	8,715	1,923
Fair value of contingent consideration	(800)	(2,083)	0
Total purchase price	22,950	10,660	2,394
Less: Deposit paid in previous period	(500)	0	0
Cash paid for acquisition	$ 22,450	$ 10,660	$ 2,394