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Consolidated Statements of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Total | Comprehensive Income [Member] | Common Shares [Member] | Treasury Stock [Member] | Additional Paid in Capital [Member] | Accumulated Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at at Jun. 30, 2009 | $ 686,464 |  | $ 457,982 | $ 0 | $ 52,152 | $ 104,479 | $ 71,851
Balance (in shares) at Jun. 30, 2009 |  |  | 52,717,000 | 0 |  |  |
Issuance of Common Shares |  |  |  |  |  |  |
Under employee stock option plans (in shares) |  |  | 474,000 |  |  |  |
Under employee stock option plans | 8,941 |  | 8,941 |  |  |  |
Under employee stock purchase plans (in shares) |  |  | 27,000 |  |  |  |
Under employee stock purchase plans | 997 |  | 997 |  |  |  |
In connection with acquisitions (in shares) |  |  | 3,608,000 |  |  |  |
In connection with acquisitions | 134,948 |  | 134,948 |  |  |  |
Stock compensation | 8,003 |  |  |  | 8,003 |  |
Income tax effect related to stock options exercised | 1,143 |  |  |  | 1,143 |  |
Purchase of treasury stock (in shares) | (307,579) |  |  | (308,000) |  |  |
Purchase of treasury stock | (14,000) |  |  | (14,000) |  |  |
Comprehensive income: |  |  |  |  |  |  |
Foreign currency translation adjustment | (20,393) | (20,393) |  |  |  |  | (20,393)
Change in actuarial gain (loss) relating to defined benefit pension plan | (2,274) | (2,274) |  |  |  |  | (2,274)
Release of unrealized gain on cash flow hedges | (990) | (990) |  |  |  |  | (990)
Release of unrealized gain on available for sale securities | (4,173) | (4,173) |  |  |  |  | (4,173)
Net income for the period | 89,212 | 89,212 |  |  |  | 89,212 |
Total comprehensive income |  | 61,382 |  |  |  |  |
Balance at at Jun. 30, 2010 | 887,878 |  | 602,868 | (14,000) | 61,298 | 193,691 | 44,021
Balance (in shares) at Jun. 30, 2010 |  |  | 56,826,000 | (308,000) |  |  |
Issuance of Common Shares |  |  |  |  |  |  |
Under employee stock option plans (in shares) | 439,071 |  | 439,000 |  |  |  |
Under employee stock option plans | 10,090 |  | 10,090 |  |  |  |
Under employee stock purchase plans (in shares) |  |  | 31,000 |  |  |  |
Under employee stock purchase plans | 1,202 |  | 1,202 |  |  |  |
In connection with acquisitions (in shares) |  |  | 6,000 |  |  |  |
In connection with acquisitions |  |  | 119 |  | (119) |  |
Stock compensation | 11,234 |  |  |  | 11,234 |  |
Income tax effect related to stock options exercised | 1,888 |  |  |  | 1,888 |  |
Purchase of treasury stock (in shares) | (264,834) |  |  | (264,000) |  |  |
Purchase of treasury stock | (12,499) |  |  | (12,499) |  |  |
Comprehensive income: |  |  |  |  |  |  |
Foreign currency translation adjustment | 15,388 | 15,388 |  |  |  |  | 15,388
Change in actuarial gain (loss) relating to defined benefit pension plan | (214) | (214) |  |  |  |  | (214)
Release of unrealized gain on available for sale securities | (411) | (411) |  |  |  |  | (411)
Unrealized gain (loss) on cash flow hedges | 1,275 | 1,275 |  |  |  |  | 1,275
Unrealized gain on available for sale securities | 411 | 411 |  |  |  |  | 411
Net income for the period | 123,203 | 123,203 |  |  |  | 123,203 |
Total comprehensive income |  | 139,652 |  |  |  |  |
Balance at at Jun. 30, 2011 | 1,039,445 |  | 614,279 | (26,499) | 74,301 | 316,894 | 60,470
Balance (in shares) at Jun. 30, 2011 |  |  | 57,302,000 | (572,000) |  |  |
Issuance of Common Shares |  |  |  |  |  |  |
Under employee stock option plans (in shares) | 1,022,556 |  | 1,023,000 |  |  |  |
Under employee stock option plans | 19,217 |  | 19,217 |  |  |  |
Under employee stock purchase plans (in shares) |  |  | 33,000 |  |  |  |
Under employee stock purchase plans | 1,792 |  | 1,792 |  |  |  |
In connection with acquisitions (in shares) |  |  | 1,000 |  |  |  |
In connection with acquisitions | 0 |  | 33 |  | (33) |  |
Stock compensation | 18,062 |  |  |  | 18,062 |  |
Income tax effect related to stock options exercised | 2,696 |  |  |  | 2,696 |  |
Purchase of treasury stock (in shares) | (221,081) |  |  | (221,000) |  |  |
Purchase of treasury stock | (10,888) |  |  | (10,888) |  |  |
Comprehensive income: |  |  |  |  |  |  |
Foreign currency translation adjustment | (9,197) | (9,197) |  |  |  |  | (9,197)
Change in actuarial gain (loss) relating to defined benefit pension plan | (5,840) | (5,840) |  |  |  |  | (5,840)
Unrealized gain (loss) on cash flow hedges | (1,069) | (1,069) |  |  |  |  | (1,069)
Net income for the period | 125,174 | 125,174 |  |  |  | 125,174 |
Total comprehensive income |  | 109,068 |  |  |  |  |
Balance at at Jun. 30, 2012 | $ 1,179,392 |  | $ 635,321 | $ (37,387) | $ 95,026 | $ 442,068 | $ 44,364
Balance (in shares) at Jun. 30, 2012 |  |  | 58,359,000 | (793,000) |  |  |

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- Definition The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=16317811 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e557-108580 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A + Details
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