Elective deferrals vested percentage

No definition available.

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- Definition

Percentage of deferred earnings

+ References

No definition available.

+ Details

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units

+ References

No definition available.

+ Details

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units Company Match

+ References

No definition available.

+ Details

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- Definition

Percentage Of Earnings Deferred Into Company Stock Units Deferred In Mutual Funds

+ References

No definition available.

+ Details

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- Definition

Percentage Of Incentive Compensation Deferred Into Company Stock Units

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Expiration In Years

+ References

No definition available.

+ Details

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- Definition

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 35

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

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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.

+ Details

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ References

+ Details

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Period Type:	duration

- Definition

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.

+ References

+ Details

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

+ Details

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

+ References

+ Details

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(h))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph h

-Article 7

+ Details

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Period Type:	instant

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(b)

-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 123R

-Paragraph A240

-Subparagraph b(2)(a)

-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.

+ Details

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Period Type:	instant

- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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Period Type:	duration

- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

+ References

+ Details

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Employee Incentive, Deferred Compensation, And Retirement Plans (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Shares authorized to grant	8,500,000		8,500,000
Options granted during the period	0		0
Cash proceeds from the exercise of stock options	$ 200,000	$ 100,000	$ 1,500,000	$ 700,000
Tax benefits realized from the exercise of stock options	500,000	200,000	4,100,000	1,100,000
Investments	242,674,000		242,674,000		239,208,000
Deferred compensation liability	17,800,000		17,800,000		24,500,000
Incentive Stock Award Plans [Member]
Options expiration period			10 years
Stock-based compensation expense	11,600,000	5,800,000	37,700,000	21,800,000
Tax benefit related to stock-based compensation recognized in shareholders' equity	1,100,000	1,500,000	14,500,000	24,100,000
Stock Units [Member]
Unrecognized compensation expense related to non-vested options	183,300,000		183,300,000
Weighted-average period, compensation cost expected to recognized, in years			3 years 2 months 12 days
Total number of stock units outstanding	15,100,000		15,100,000
Unvested stock units outstanding	5,700,000		5,700,000
Percentage of deferred earnings	1.00%		1.00%
SWAP Plan [Member]
Total number of stock units outstanding	14,900,000		14,900,000
Percentage of incentive compensation deferred into company stock units	15.00%		15.00%
Percentage of earnings deferred into company stock units	4.00%		4.00%
Percentage of earnings deferred into company stock units, Company match	25.00%		25.00%
Elective deferrals vested percentage	100.00%		100.00%
Mutual Funds [Member]
Percentage of earnings deferred into company stock units, Company match	25.00%		25.00%
Percentage of earnings deferred into mutual funds	2.00%		2.00%
Investments	$ 17,800,000		$ 17,800,000		$ 34,000,000
Maximum [Member] \| Incentive Stock Award Plans [Member]
Awards vesting period in years			8 years
Maximum [Member] \| Stock Units [Member]
Awards vesting period in years			8 years
Maximum [Member] \| Deferred Compensation Plans [Member]
Awards vesting period in years			8 years
Maximum [Member] \| SWAP Plan [Member]
Awards vesting period in years			7 years
Minimum [Member] \| Incentive Stock Award Plans [Member]
Awards vesting period in years			3 years
Minimum [Member] \| Stock Units [Member]
Awards vesting period in years			3 years
Minimum [Member] \| Deferred Compensation Plans [Member]
Awards vesting period in years			5 years
Minimum [Member] \| SWAP Plan [Member]
Awards vesting period in years			3 years