Represents the aggregate number of share instruments vested under a share-based compensation plan since inception.

No definition available.

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Represents the number of shares to be vested and issued for each unit outstanding upon non satisfaction of the performance criteria.

+ References

No definition available.

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Represents the number of shares to be vested and issued for each unit outstanding upon satisfaction of the performance criteria.

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No definition available.

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- Definition

Represents the approximate weighted average vesting period for equity awards granted under the equity-based compensation arrangement.

+ 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

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

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- Definition

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

+ References

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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.

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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

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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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

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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).

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- 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.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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).

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- Definition

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.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph A240

-Subparagraph b(1)(b)

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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-Publisher FASB

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Stock Based Compensation (Details) (USD $)	3 Months Ended									1 Months Ended	3 Months Ended
Stock Based Compensation (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Restricted stock grants	Mar. 31, 2012 Restricted stock grants	Mar. 31, 2013 Restricted stock units	Mar. 31, 2012 Restricted stock units	Mar. 31, 2013 2012 Incentive Plan	Mar. 31, 2013 Prior Incentive Plans	Mar. 31, 2013 Pay-for-performance program	Sep. 30, 2010 Pay-for-performance program Restricted stock units	Mar. 31, 2013 Pay-for-performance program Restricted stock units
Stock Based Compensation
Number of shares authorized for issuance							600,000
Shares issued pursuant to plan							112,650
Vesting period			5 years
Number of share instruments vested since plan's inception							50
Number of shares to be vested and issued for each unit outstanding on satisfying performance criteria at June 30, 2017											1
Number of shares to be issued for each unit outstanding on not satisfying performance criteria at June 30, 2017											0
Outstanding options at the end of the period (in shares)	0	0
Summary of the activity of the incentive plans
Restricted share grants			112,650	109,450				0		200,000
Average per share grant price (in dollars per share)			$ 21.59	$ 16.77
Deferred compensation to be recognized over vesting period			$ 2,432,000	$ 1,835,000
Non-vested shares:
Non-vested beginning of period (in shares)			407,460	348,385
Grants (in shares)			112,650	109,450				0		200,000
Vested during period (in shares)			(50,095)	(49,325)							0
Forfeitures (in shares)											0
Non-vested end of period (in shares)			470,015	408,510				557,415
Other disclosures
Average per share value of non-vested shares (based on grant price) (in dollars per share)			$ 14.22	$ 12.59
Value of shares vested during the period (based on grant price)			876,000	1,208,000
The total charge to operations for all incentive plans, including the 200,000 Units, is as follows:
Share based compensation charged to operations	397,000	302,000	367,000	282,000	30,000	20,000
Compensation costs related to nonvested awards that have not yet been recognized	$ 5,307,000								$ 515,000
Approximate weighted average vesting period	3 years 3 months 18 days