Note 10 - Comprehensive Income (Detail) - A Rollforward of the Amounts Included in Accumulated Other Comprehensive Income, Net of Taxes (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2012
Fair Value Hedging [Member]
Balance at June 30, 2011	$ (253)
Changes in value	0
Reclassification into earnings	0
Reclassification into earnings	0
Reclassification into earnings	0
Balance at March 31, 2012	(253)
Currency Swap [Member]
Balance at June 30, 2011	60,918
Changes in value	(19,983)
Reclassification into earnings	0
Reclassification into earnings	0
Reclassification into earnings	0
Balance at March 31, 2012	40,935
Post-Employment Healthcare [Member]
Balance at June 30, 2011	(3,662)
Changes in value	0
Changes in value	0
Reclassification into earnings	0
Reclassification into earnings	0
Reclassification into earnings	0
Balance at March 31, 2012	(3,662)
Total [Member]
Balance at June 30, 2011	57,003
Changes in value	(19,983)
Changes in value	(19,983)
Reclassification into earnings	0
Reclassification into earnings	0
Reclassification into earnings	0
Balance at March 31, 2012	$ 37,020