Financial Instruments And Fair Value Measurements (Summary Of Redemptions And Sales Of Auction Rate Securities) (Details) (Auction Rate Securities [Member], USD $) In Thousands	3 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Auction Rate Securities [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Original cost, par value	$ 0	$ 3,000
Impairment previously recorded in consolidated accumulated comprehensive income	0	(32)
Impairment previously recorded in consolidated statement of operations	0	(342)
Carrying value	0	2,626
Proceeds from redemption/sale	0	2,807
Gain on redemption/sale	0	181
Reversal of impairment losses previously recorded in accumulated other comprehensive income	0	(32)
Gain from redemption/sale recorded in consolidated statement of operations	$ 0	$ 149

Cumulative other than temporary impairment losses, investments.

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Cumulative Other Than Temporary Impairment Losses Investments Accumulative Comprehensive Income

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Redemptions, Cost

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Redemptions, Fair Value

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Reversal of Impairment Previously Recorded In Accumulated Other Comprehensive Income

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This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

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The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, beyond the current operating cycle.

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The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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