v2.3.0.15

Shareholders' Equity (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended	9 Months Ended
	May 25, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Unrecognized compensation cost			$ 41,207,000
Total intrinsic value of options exercisable			0
Change in management's estimate for achievement of vesting targets			0	8,684,000
Previously recognized stock-based compensation costs reversed		6,267,000
Total intrinsic value of options exercised			8,488,000	5,361,000
Market value of the Company's common stock			15.38
Weighted average exercise price of the options exercisable			$ 17.63
Total options that were outstanding			26,034,000
Shares purchased, cost			158,682,000
Shares purchased and retired			7,884,000
Authorized aggregate repurchase value of common stock			48,759,000
Cash dividends			$ 22,041,000	$ 18,890,000
Cash dividends declared, per share	$ 0.12		$ 0.12	$ 0.10
Cash dividends declared, date declared			May 25, 2011
Cash dividends declared, date paid			Jun. 28, 2011
Cash dividends declared, date of record			Jun. 20, 2011
2007 Plan [Member]
Number of active equity compensation plans			1
Options available for grant			20,000,000
Percentage of stock options vested when specified diluted earnings per share targets are achieved			50.00%
Remaining percentage of stock options vested when secondary, higher specified diluted earnings per share targets are achieved			50.00%
1998 Plan [Member]
Options available for grant			0

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Market value of common stock.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Number of shares that have been repurchased and retired during the period.

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