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Stockholders' Equity (Summary of Activity for Stock Option Awards) (Details) - Stock Options [Member] shares in Thousands	3 Months Ended
	Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, beginning balance | shares	5,611
Weighted Average Exercise Price Per Share, beginning balance | $ / shares	$ 45.42
Options granted, Number of options | shares	674
Options granted, Weighted Average Exercise Price Per Share | $ / shares	$ 79.79
Options exercised, Number of options | shares	(107)
Options exercised, Weighted Average Exercise Price Per Share | $ / shares	$ 31.48
Options forfeited, Number of options | shares	(5)
Options forfeited, Weighted Average Exercise Price Per Share | $ / shares	$ 70.65
Number of options, ending balance | shares	6,173
Weighted Average Exercise Price Per Share, ending balance | $ / shares	$ 49.40

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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-SubTopic 10
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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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