Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Summary of Income before income taxes by geography
US	$ 13,247	$ 10,250	$ 9,402
Non-US	77,875	64,764	51,701
Total	91,122	75,014	61,103
Current:
U.S. Federal	3,025	5,607	4,766
U.S. State	1,521	1,366	2,234
Non-U.S	2,894	2,530	3,062
Total current	7,440	9,503	10,062
Deferred:
U.S. Federal	628	(1,797)	(2,344)
U.S. State	18	(289)	(1,289)
Non-U.S	927	(144)	(1,012)
Total Deferred taxes	1,573	(2,230)	(4,645)
Total	$ 9,013	$ 7,273	$ 5,417
Reconciliation of the standard U.S. statutory tax rate and the Company' s effective tax rate
US federal statutory income tax rate	34.00%	34.00%	34.00%
State taxes, net of federal effect	1.10%	1.00%	1.00%
Foreign rate differential	(25.10%)	(26.00%)	(25.80%)
Increase in valuation allowance	0.80%	1.30%	0.00%
Other	(0.90%)	(0.60%)	(0.30%)
Effective income tax rate	9.90%	9.70%	8.90%