Exercise Price Of Common Stock Rounding Amount

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Award Expiration Period From Grant Date

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

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

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- Definition

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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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.

+ 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 (a)(1)

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

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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)(iii)(1)

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

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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)(iii)(1)

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

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ 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 (a)(3)

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

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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

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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.

+ 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 (d)(2)

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

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- Definition

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

+ 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)(1)(iv)(1)

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

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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.

+ 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 (d)(1)

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

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- Definition

The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

+ References

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Stock Compensation Plans - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of incentive and non-qualified options	417,484
Stock option granted, weighted average grant date fair value	$ 14.30	$ 11.78	$ 11.45
Stock option granted, weighted average grant date fair value	$ 4.1	$ 2.7	$ 6.9
Stock option expenses including selling general and administrative expenses	4.4
Non vested restricted stock expense including selling general and administrative expense	7.5
2000 Stock Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of common stock authorized to be issued under plan	4,000,000
Exercise price of common stock	0.25
Unrecognized compensation expense	1.0
Shares available for future grants	760,979
2000 Stock Compensation Plan Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of common stock authorized to be issued under plan	800,000
2008 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of common stock authorized to be issued under plan	2,500,000
Unrecognized compensation expense	$ 16.1
Shares available for future grants	839,542
2008 Stock Incentive Plan Stock Appreciation Rights
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of common stock authorized to be issued under plan	875,000
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of restricted stock awards	148,191
Weighted Average Grant Date Fair Value, Granted	$ 75.60	$ 56.95	$ 54.33
Common Stock \| 2000 Stock Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of incentive and non-qualified options	29,875
Common Stock \| 2008 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of incentive and non-qualified options	387,609
Restricted Stock Units \| 2000 Stock Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of restricted stock awards	8,092
Restricted Stock Units \| 2008 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant of restricted stock awards	140,099
Minimum \| 2000 Stock Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercisable period of option granted, in years	3 years
Minimum \| 2000 Stock Compensation Plan Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercisable period of option granted, in years	1 year
Maximum \| 2000 Stock Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercisable period of option granted, in years	5 years
Expiration period of option granted, after the date of grant in years	10 years
Maximum \| 2000 Stock Compensation Plan Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercisable period of option granted, in years	3 years