Disposal Group, Including Discontinued Operation, Buyer Credits

No definition available.

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- Definition

Line of Credit, Increase in Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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- Definition

A deposit made by a purchaser of real estate to evidence good faith. It is customary for a buyer to give the seller earnest money at the time a sales contract is signed. The earnest money generally is credited to the down payment at closing, which is applied at closing as a component of payment against the purchase price.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of difference between the carrying amount and the sales price of real estate properties sold as part of discontinued operations.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Balance Type:	credit
Period Type:	instant

- 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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Subsequent Events (Details) (USD $)	12 Months Ended			0 Months Ended	3 Months Ended	0 Months Ended
Subsequent Events (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 08, 2015	Mar. 31, 2015	Jan. 27, 2015	Jan. 15, 2015	Feb. 04, 2015	Apr. 01, 2014	Feb. 20, 2015
Subsequent Event [Line Items]
Gross purchase price	$ 862,475,000
Earnest money deposits	15,000,000us-gaap_EarnestMoneyDeposits
Gain on sale of real estate from discontinued operations	10,463,000	32,493,000	12,938,000
Office Building \| One Buckhead Plaza
Subsequent Event [Line Items]
Earnest money deposits	15,000,000
Office Building \| Subsequent Event \| One Buckhead Plaza
Subsequent Event [Line Items]
Gross purchase price				157,000,000
Buyer credits							8,900,000
Office Building \| Subsequent Event \| Raymond James Tower
Subsequent Event [Line Items]
Gross proceeds from sale of real estates							19,300,000
Office Building \| Subsequent Event \| Honeywell
Subsequent Event [Line Items]
Gross proceeds from sale of real estates								28,000,000
Scenario, Forecast \| Office Building \| Subsequent Event \| One Buckhead Plaza
Subsequent Event [Line Items]
Gain on sale of real estate from discontinued operations					47,000
Scenario, Forecast \| Office Building \| Subsequent Event \| Honeywell
Subsequent Event [Line Items]
Gain on sale of real estate from discontinued operations					14,300,000
Line of Credit \| Revolving Credit Facility
Subsequent Event [Line Items]
Maximum borrowing capacity									250,000,000.0
Line of Credit \| Revolving Credit Facility \| Subsequent Event
Subsequent Event [Line Items]
Increase in maximum borrowing capacity						200,000,000
Maximum borrowing capacity						$ 450,000,000.0
2015 Equity Plan \| Subsequent Event
Subsequent Event [Line Items]
Number of shares authorized for issuance (in shares)										2,500,000