Discontinued Operations (Details) (USD $)	3 Months Ended			6 Months Ended			12 Months Ended						6 Months Ended			12 Months Ended					1 Months Ended	6 Months Ended	12 Months Ended	19 Months Ended	6 Months Ended
	Jun. 30, 2012 sqft		Jun. 30, 2011	Jun. 30, 2012 sqft		Jun. 30, 2011	Dec. 31, 2011 sqft		Jun. 30, 2012 Fund I Assets [Member] sqft		Jun. 30, 2012 111 Capitol Building [Member] sqft		Jun. 30, 2012 Jackson, MS [Member]	Jun. 30, 2012 Memphis, TN [Member]	Jun. 30, 2012 Richmond, VA [Member]	Dec. 31, 2011 233 North Michigan [Member] sqft	Dec. 31, 2011 Greenbrier I & II [Member] sqft	Dec. 31, 2011 Glen Forest [Member] sqft	Dec. 31, 2011 Tower at Gervais [Member] sqft	Dec. 31, 2011 Wells Fargo [Member] sqft	Jul. 31, 2012 Fund I Assets [Member] sqft	Jun. 30, 2012 Fund I Assets [Member] sqft	Dec. 31, 2011 Fund I Assets [Member] sqft	Jul. 31, 2012 Fund I Assets [Member]	Jun. 30, 2012 Falls Pointe [Member] sqft	Jun. 30, 2012 111 East Wacker [Member] sqft	Jun. 30, 2012 Renaissance Center [Member] sqft	Jun. 30, 2012 Overlook II [Member] sqft	Jun. 30, 2012 Wink Building [Member] sqft	Jun. 30, 2012 Non-Core Assets [Member] sqft	Jun. 30, 2012 Additional Assets Sold [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Location																Chicago, IL	Hampton Roads, VA	Richmond, VA	Columbia, SC	Houston, TX			Various		Atlanta, GA	Chicago, IL	Memphis, TN	Atlanta, GA	New Orleans, LA	Various
Square feet (in square feet)	3,346,000	[1]		3,346,000	[1]		3,711,000	[2]								1,070,000	172,000	81,000	298,000	134,000			1,956,000		107,000	1,013,000	189,000	260,000	32,000	1,745,000
Date of sale																05/11/2011	07/19/2011	08/16/2011	09/08/2011	12/09/2011			12/31/2011		01/06/2012	01/09/2012	03/01/2012	04/30/2012	06/08/2012	Various
Net Sales Price	$ 335,652,000	[1]		$ 335,652,000	[1]		$ 457,015,000	[2]								$ 156,546,000	$ 16,275,000	$ 8,950,000	$ 18,421,000	$ 0			$ 256,823,000		$ 5,824,000	$ 153,240,000	$ 27,661,000	$ 29,467,000	$ 705,000	$ 118,755,000
Net Book Value of Real Estate	326,880,000	[1]		326,880,000	[1]		444,324,000	[2]								152,254,000	15,070,000	7,880,000	18,421,000	0			250,699,000		4,467,000	153,237,000	24,629,000	28,689,000	803,000	115,055,000
Gain (Loss) on Sale	3,197,000		4,292,000	8,772,000		4,292,000	17,825,000	[2]								4,292,000	1,205,000	1,070,000	0	0			11,258,000		1,357,000	3,000	3,032,000	778,000	(98,000)	3,700,000
Parkway's proportionate share of gain on sales of assets				4,900,000			9,800,000
Number of non-core assets sold				14									5	4	5
Number of non-core assets held for sale	15			15
Number of properties under agreement to sell																						13
Area of property under agreement to sell (in millions of square feet)																						2,700,000
Gross sales price of assets under agreement to sell																						344,300,000								139,500,000	157,400,000
Number of assets under agreement that have completed sale																					2	2	9
Mortgage loans assumed by buyer for property sold																						292,000,000				147,900,000				41,700,000
Proportionate share of mortgage loans assumed																						82,400,000								31,900,000
Weighted average interest rate on mortgage loans assumed by the buyer for properties sold (in hundredths)																						5.60%
Area of property sold under agreement to sell (in square feet)																					321,000	449,000
Net proceeds from the sale																								14,200,000						88,000,000	4,800,000
Number of additional assets sold																															3
Long Lived Assets Held-for-sale [Line Items]
Location of Real Estate Property									Atlanta, GA	[3]	Jackson, MS	[3],[4]
Square feet (in square feet)	508,000	[3]		508,000	[3]				321,000	[3]	187,000	[3],[4]
Date of sale, property held for sale									07/01/2012	[3]
Gross Sales Price	29,850,000	[3]		29,850,000	[3]				29,850,000	[3]	0	[3],[4]
Major classes of assets and liabilities classified as held for sale [Abstract]
Investment property	36,261,000			36,261,000
Accumulated depreciation	(4,530,000)			(4,530,000)
Office property held for sale	31,731,000			31,731,000
Rents receivable and other assets	5,300,000			5,300,000
Intangible assets, net	171,000			171,000
Other assets held for sale	5,471,000			5,471,000
Total assets held for sale	37,202,000			37,202,000
Mortgage notes payable	29,597,000			29,597,000
Accounts payable and other liabilities	1,487,000			1,487,000
Total liabilities related to assets held for sale	31,084,000			31,084,000
Revenues and expenses for office properties reported in discontinued operations [Abstract]
Income from office and parking properties	2,693,000		36,257,000	12,060,000		75,755,000
Total Revenues	2,693,000		36,257,000	12,060,000		75,755,000
Expenses [Abstract]
Operating expense	1,608,000		16,042,000	5,477,000		34,168,000
Management company expense	86,000		52,000	238,000		126,000
Interest expense	1,587,000		7,418,000	3,378,000		15,770,000
Non-cash adjustment for interest rate swap	(77,000)		0	(215,000)		0
Depreciation and amortization	153,000		15,130,000	593,000		30,982,000
Impairment loss	0		1,700,000	0		1,700,000
Total Expenses	3,357,000		40,342,000	9,471,000		82,746,000
Income (loss) from discontinued operations	(664,000)		(4,085,000)	2,589,000		(6,991,000)
Gain on sale of real estate from discontinued operations	3,197,000		4,292,000	8,772,000		4,292,000	17,825,000	[2]								4,292,000	1,205,000	1,070,000	0	0			11,258,000		1,357,000	3,000	3,032,000	778,000	(98,000)	3,700,000
Total discontinued operations	2,533,000		207,000	11,361,000		(2,699,000)
Net (income) loss attributable to noncontrolling interest from discontinued operations	(320,000)		1,754,000	(3,675,000)		3,530,000
Total discontinued operations-Parkway's share	$ 2,213,000		$ 1,961,000	$ 7,686,000		$ 831,000

[1] Total gain on the sale of real estate in discontinued operations recognized during the six months ended June 30, 2012 was $8.8 million, of which $4.9 million was Parkway's proportionate share.

[2] Total gain on the sale of real estate in discontinued operations recognized for the year ended December 31, 2011 was $17.8 million, of which $9.8 million was Parkway's proportionate share.

[3] Gains on assets held for sale are expected to be finalized upon sale and reflected in third quarter 2012 financial statements.

[4] During the six months ended June 30, 2012, the Company sold 14 of 15 non-core assets. The 14 assets sold include five assets in Richmond, four assets in Memphis and five assets in Jackson. The remaining asset that has not yet closed is 111 Capitol Building, in Jackson, Mississippi. The 111 Capitol Building is currently under contract to sell and is expected to close during the third quarter of 2012, subject to customary closing conditions.