Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Current Assets
Cash and cash equivalents	$ 152,611	$ 134,944
Accounts receivable - less allowance for doubtful accounts of $2,011 at September 30, 2012 and $1,536 at June 30, 2012	98,695	104,761
Inventories	135,261	137,607
Deferred income taxes	10,411	10,796
Prepaid and refundable income taxes	7,374	8,488
Prepaid and other current assets	13,469	13,777
Total Current Assets	417,821	410,373
Property, plant & equipment, net	151,762	153,918
Goodwill	80,748	80,748
Other intangible assets, net	42,970	44,014
Investment	11,026	10,661
Deferred income taxes	47	145
Other assets	6,751	6,627
Total Assets	711,125	706,486
Current Liabilities
Accounts payable	23,317	29,420
Accrued compensation and benefits	24,015	27,234
Accrued income tax payable	7,112	8,761
Deferred income taxes	126	209
Other accrued liabilities	16,186	18,104
Total Current Liabilities	70,756	83,728
Long-term debt	17,865	12,769
Deferred income taxes	5,187	5,883
Other liabilities	13,043	12,720
Total Liabilities	106,851	115,100
Shareholders' Equity
Preferred stock, no par value; authorized - 5,000,000 shares; none issued
Common stock, no par value; authorized - 300,000,000 shares; issued - 69,849,855 shares at September 30, 2012; 69,626,883 shares at June 30, 2012	182,520	176,295
Accumulated other comprehensive income	11,590	10,238
Retained earnings	451,389	438,671
Shareholders' equity excluding treasury stock	645,499	625,204
Treasury stock, at cost, 7,187,965 shares at September 30, 2012 and 6,793,928 shares at June 30, 2012	42,578	35,247
Total II-VI Incorporated Shareholders' Equity	602,921	589,957
Noncontrolling Interest	1,353	1,429
Total Shareholders' Equity	604,274	591,386
Total Liabilities and Shareholders' Equity	$ 711,125	$ 706,486