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Changes In Stockholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Sep. 30, 2007	Jun. 30, 2012
Stockholders' Equity Note [Abstract]
Share repurchase program, authorized amount	$ 75
Share repurchase program, shares repurchased	1,643
Share repurchase program, repurchased amount	31.4
Authorized amount remaining for stock repurchases		$ 43.6

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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