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Strategic Investments (Details) (Albemarle & Bond Holdings [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2010
Albemarle & Bond Holdings [Member] |  |  |
Summary of financial information for Albemarle & Bond |  |  |
Current assets | $ 141,880 | $ 125,862 |
Non-current assets | 69,282 | 64,325 |
Total assets | 211,162 | 190,187 |
Current liabilities | 15,772 | 18,620 |
Non-current liabilities | 70,016 | 57,016 |
Shareholders' equity | 125,374 | 114,551 |
Total liabilities and shareholders' equity | 211,162 | 190,187 |
Gross revenues | 186,479 | 162,002 | 129,794
Gross profit | 109,474 | 97,197 | 84,850
Profit for the year (net income) | $ 24,835 | $ 24,324 | $ 22,792

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