The expiration period for equity-based award after issuance.

No definition available.

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- Definition

Aggregate unrecognized cost of share-based awards, other than options, made to employees under an equity-based compensation plan, that have yet to vest.

+ References

No definition available.

+ Details

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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

+ Details

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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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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

+ References

+ Details

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

+ 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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- Definition

Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph 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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

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

+ Details

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- Definition

Number of shares related to Restricted Stock Award forfeited during the period.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 4, 5

-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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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Stock-Based Compensation (Details) (USD $)	9 Months Ended				12 Months Ended		3 Months Ended			12 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended
Stock-Based Compensation (Details) (USD $)	Sep. 30, 2012 1999 Plan [Member] Stock Options [Member]	Sep. 30, 2012 1999 Plan [Member] Stock Options [Member] In 1999 [Member]	Sep. 30, 2012 1999 Plan [Member] Stock Options [Member] Subsequent to 1999 [Member]	Sep. 30, 2012 1999 Plan [Member] Restricted Stock Units (RSUs) [Member]	Dec. 31, 2007 1999 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2007 [Member]	Sep. 30, 2012 1999 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2007 [Member]	Dec. 31, 2008 1999 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2008 [Member]	Sep. 30, 2008 1999 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2008 [Member]	Sep. 30, 2012 1999 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2008 [Member]	Dec. 31, 2009 2009 Plan [Member]	Sep. 30, 2012 2009 Plan [Member] Restricted Stock Units (RSUs) [Member]	Jul. 31, 2012 2009 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2012 [Member]	Mar. 31, 2012 2009 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2012 [Member]	Sep. 30, 2012 2009 Plan [Member] Restricted Stock Units (RSUs) [Member] In 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		5 years	3 years	3 years							5 years
Plan expiration date	May 13, 2009
Expiration period	10 years
Granted (in shares)					3,000		2,000	1,750				5,355	29,514
Grant date fair value (in dollars per share)					$ 17.40		$ 11.37	$ 12.80				$ 8.25	$ 7.90
Unrecognized compensation cost related to restricted stock grants						$ 0			$ 0					$ 264,000
Stock reserved for issuance (in shares)										330,486
Terms of Award										All rights must be granted or awarded within ten years from the May 7, 2009 effective date of the 2009 Plan.
Forfeited restricted stock units (in shares)											5,355