Fair Value Measurements (Details) (USD $)	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Corporate Bonds [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Corporate Bonds [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Obligations of states, municipalities and political subdivisions [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Obligations of states, municipalities and political subdivisions [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Equity Securities [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Equity Securities [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Mutual Funds [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Mutual Funds [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Foreign Exchange Forward [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Foreign Exchange Forward [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Foreign Corporate Bonds		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Equity Securities [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Equity Securities [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Mutual Funds [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Mutual Funds [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] U.S. treasury securities and obligations of the U.S. government, government agencies and authorities [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Corporate Bonds [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Corporate Bonds [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Obligations of states, municipalities and political subdivisions [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Obligations of states, municipalities and political subdivisions [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Foreign Exchange Forward [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Foreign Exchange Forward [Member]		Jun. 30, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Foreign Corporate Bonds
Assets:
Available-for-sale Securities		$ 11,120,000	[1]	$ 33,347,000	[1]	$ 32,494,000	[1]	$ 46,085,000	[1]	$ 5,234,000	[1]	$ 14,620,000	[1]	$ 1,437,000	[2]	$ 1,383,000	[2]	$ 5,083,000	[3]	$ 7,138,000	[3]					$ 3,501,000	[1]	$ 2,035,000	[1]	$ 2,043,000	[1]	$ 1,437,000	[2]	$ 1,383,000	[2]	$ 5,083,000	[3]	$ 7,138,000	[3]	$ 9,085,000	[1]	$ 31,304,000	[1]	$ 32,494,000	[1]	$ 46,085,000	[1]	$ 5,234,000	[1]	$ 14,620,000	[1]					$ 3,501,000	[1]
Derivatives																						713,000	[4]	2,665,000	[4]																											713,000	[4]	2,665,000	[4]
Liabilities:
Derivatives																						329,000	[4]	137,000	[4]																											329,000	[4]	137,000	[4]
Unrealized Gain (Loss) on Derivatives recognized in earniings [Abstract]
Unrealized Gain (Loss) on derivatives recognized in earnings	$ 600,000

[1] These assets are included in short-term investments or other assets on the consolidated balance sheet. See Note 3 for the classification of all fixed income securities as current or non-current.

[2] These assets are included in short-term investments or other assets on the consolidated balance sheet.

[3] These assets are included in other assets on the consolidated balance sheet.

[4] These derivative investments are included in other current assets or accounts payable, accrued liabilities and deferred income on the consolidated balance sheet. See Note 7 for further information on our derivative investments.