Strategic Investments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Summary of financial information for Albemarle & Bond
Total assets	$ 266,920	$ 236,934
Total liabilities and shareholders' equity	266,920	236,934
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
Gross profit	109,474	97,197
Profit for the year (net income)	$ 24,835	$ 24,324