Condensed Consolidated Statements Of Earnings (USD $) In Thousands, except Per Share data	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Revenues, including contract research and development
Domestic	$ 55,569	$ 49,238
International	82,804	70,896
Total Revenues	138,373	120,134
Costs, Expenses and Other Expense (Income)
Cost of goods sold, including contract research and development	83,363	70,898
Internal research and development	5,163	3,846
Selling, general and administrative	26,812	22,729
Interest expense	59	30
Other expense (income), net	(1,630)	(2,062)
Total Costs, Expenses, and Other Expense (Income)	113,767	95,441
Earnings Before Income Taxes	24,606	24,693
Income Taxes	5,892	6,292
Net Earnings	18,714	18,401
Less: Net Earnings Attributable to Noncontrolling Interests	135	34
Net Earnings Attributable to II-VI Incorporated	$ 18,579	$ 18,367
Net Earnings Attributable to II-VI Incorporated: Basic Earnings Per Share:	$ 0.30	$ 0.30
Net Earnings Attributable to II-VI Incorporated: Diluted Earnings Per Share:	$ 0.29	$ 0.29