Share based compensation arrangement by share based payment award number of common stock reserved for issuance.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award option awards contractual term.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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-Name Staff Accounting Bulletin (SAB)

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- Definition

The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

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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

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.

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- Definition

Date the equity-based award expires, in CCYY-MM-DD format.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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- Definition

The 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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Total cost of shares repurchased divided by the total number of shares repurchased.

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- Definition

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

+ References

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Stock-Based Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended			96 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	May 09, 2012
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Expiration year	Dec. 31, 2022
Weighted average remaining life	4 years 2 months 12 days
Stock repurchase program authorized share amount	15,000,000			15,000,000
Common stock repurchased, shares	2,000us-gaap_TreasuryStockSharesAcquired	1,000us-gaap_TreasuryStockSharesAcquired	0us-gaap_TreasuryStockSharesAcquired	11,521,000us-gaap_TreasuryStockSharesAcquired
Treasury Stock Acquired, Average Cost Per Share	$ 139.92
Common stock repurchased, value				$ 335,455
Weighted-average grant-date fair value of options granted	$ 0.00	$ 0.00	$ 28.71
Total intrinsic value of options exercised	6,613	20,101	4,226
Stock Options Plans [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Weighted average remaining life	4 months 24 days
Recognized stock-based compensation costs	865	1,366	2,176
Recognized stock-based compensation costs, net of tax	548	865	1,378
Pre-tax unrecognized compensation expense	205			205
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Recognized stock-based compensation costs	27,096	16,945	11,887
Recognized stock-based compensation costs, net of tax	17,165	10,735	7,530
Pre-tax unrecognized compensation expense	$ 29,738			$ 29,738
Recognized expense over a weighted-average period, years	2 years 2 months 1 day
2012 Long-term Incentive Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Number of common stock reserved for issuance					3,200,000
Two Thousand Seven Incentive Plan [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Option awards contractual term (years)	10 years
Two Thousand Seven Incentive Plan [Member] \| Maximum [Member] \| Stock Options Plans [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Vesting period (years)	5 years
Two Thousand Seven Incentive Plan [Member] \| Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Vesting period (years)	5 years
Two Thousand Seven Incentive Plan [Member] \| Minimum [Member] \| Stock Options Plans [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Vesting period (years)	3 years
Two Thousand Seven Incentive Plan [Member] \| Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Vesting period (years)	3 years
Treasury Stock [Member]
Share Based Compensation Arrangement by Share Based Payment Award [Line Items]
Common stock to non-employee directors	0	3,000	2,000