The rate at which plan participants elected acceleration and payout of share-based awards.

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- Definition

Number of performance periods under ICP Plans awarded based on the level of performance achieved by Piedmont for a rolling performance period.

+ References

No definition available.

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- Definition

Total number of retention shares vested during the period, gross of tax withholding.

+ References

No definition available.

+ Details

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- Definition

The number of non-vested, restricted equity-based payment instrument, excluding stock (or unit) options, that were issued to the participant under accelerated incentive compensation plans.

+ References

No definition available.

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- Definition

Aggregate value of stock related to Restricted, Nonvested Stock Awards issued under accelerated incentive compensation plans during the period.

+ References

No definition available.

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- Definition

Aggregate value of the accelerated Incentive Compensation Plan (ICP) award before reducing the award for the amount of income taxes withheld.

+ References

No definition available.

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- Definition

Aggregate value of Incentive Compensation Plan (ICP) awards issued before tax withholdings.

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

+ References

No definition available.

+ Details

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- Definition

Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, 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

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

+ References

+ Details

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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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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- Definition

Gross 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). 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

No definition available.

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Employee Share-Based Plans (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended
	Dec. 15, 2015	Dec. 31, 2011	Jan. 31, 2016	Jan. 31, 2015	Dec. 14, 2015	Oct. 31, 2015	Oct. 24, 2015
Employee Share Based Plans Details [Line Items]
Compensation expense			$ 6,230	$ 2,230
Liability			$ 8,036			$ 22,037
Business Acquisition, Share Price							$ 60
ESPP exercise price as a percent			95.00%
Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Performance period			3 years
Share Price					$ 56.85
Retention Stock Unit Award President And Chief Executive Officer \| Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Unvested Shares Issued To CEO		64,700
Retention stock unit award vesting period			5 years
Incentive Compensation Plan Percentage Of Common Stock Vested			In accordance with the vesting schedule, 20% of the units vested on December 15, 2014 and 30% of the units vested on December 15, 2015. The remaining 50% of the units that vest on December 15, 2016 (2016 RSU) were accelerated as authorized by the Compensation Committee of our Board of Directors as discussed below.
Retention Stock Unit Award President And Chief Executive Officer \| Vested on December 15, 2014 \| Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Common stock vesting percentage			20.00%
Retention Stock Unit Award President And Chief Executive Officer \| Vest on December 15, 2015 \| Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Stock Award Vested, Shares, Gross	22,434
Payments Related to Tax Withholding for Share-based Compensation	$ 600
Stock Issued During Period, Shares, Share-based Compensation, Gross	11,732
Share Price					$ 56.85
Common stock vesting percentage			30.00%
Retention Stock Unit Award President And Chief Executive Officer \| Vest on December 15, 2016 \| Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Stock Issued During Period, Shares, Restricted Nonvested Stock Award	19,554
Stock Issued During Period, Value, Restricted, Nonvested Stock Award	$ 1,100
Value Of Incentive Compensation Plan Award Issued Gross	$ 2,100
Common stock vesting percentage			50.00%
Long Term Incentive Plan Three Performance Measures \| Stock Compensation Plan
Employee Share Based Plans Details [Line Items]
Acceleration And Payout Election Rate	96.00%
Stock Issued During Period, Shares, Restricted Nonvested Stock Award	162,390
Value of Incentive Compensation Plan Award Gross	$ 17,400
Stock Issued During Period, Value, Restricted, Nonvested Stock Award	$ 9,200