Nature of Operations and Summary of Significant Accounting Policies Treasury Stock (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2019	Jun. 30, 2019
Class of Stock Disclosures [Abstract]
Treasury Stock, Shares	26,608,000	26,508,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	3,383,000	3,483,000
Treasury Stock, Value	$ 1,124,269	$ 1,110,124
Treasury Stock, Shares, Acquired	100,000

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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Number of shares that have been repurchased during the period and are being held in treasury.

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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