Investment in Office Properties - Dispositions (Details) (USD $)	12 Months Ended						1 Months Ended	3 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended										12 Months Ended		12 Months Ended		12 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended	0 Months Ended
	Dec. 31, 2013 sqft		Dec. 31, 2012 sqft Property		Dec. 31, 2011 Property sqft	Mar. 09, 2012 sqft	Oct. 31, 2013 Lakewood II [Member] sqft	Dec. 31, 2013 Lakewood II [Member] sqft	Dec. 31, 2013 Lakewood II [Member] sqft	Dec. 31, 2012 Sugar Grove [Member] sqft	Jul. 02, 2012 Fund I Assets [Member] Asset	Dec. 31, 2013 Fund I Assets [Member] Property sqft	Dec. 31, 2012 Fund I Assets [Member] Asset sqft Property	Dec. 31, 2011 Fund I Assets [Member] Asset sqft Property	Dec. 31, 2012 Falls Pointe [Member] sqft	Dec. 31, 2012 Wink Building [Member] sqft	Dec. 31, 2012 111 East Wacker [Member] sqft	Dec. 31, 2012 Non-Core Assets [Member] Property sqft Asset	Dec. 31, 2012 Non-Core Assets [Member] Asset sqft Property	Dec. 31, 2013 Non-Core Assets [Member] Jackson, MS [Member] Asset	Dec. 31, 2012 Non-Core Assets [Member] Jackson, MS [Member] Asset	Dec. 31, 2013 Non-Core Assets [Member] Memphis, TN [Member] Asset	Dec. 31, 2012 Non-Core Assets [Member] Memphis, TN [Member] Asset	Dec. 31, 2013 Non-Core Assets [Member] Richmond, VA [Member] Asset	Dec. 31, 2012 Non-Core Assets [Member] Richmond, VA [Member] Asset	Dec. 31, 2012 Additional Assets Sold [Member] Property	Nov. 08, 2013 Carmel Crossing [Member] sqft	Dec. 31, 2013 Carmel Crossing [Member] sqft	Dec. 31, 2013 Carmel Crossing [Member] sqft	Mar. 20, 2013 Atrium at Stoneridge [Member] sqft	Sep. 30, 2013 Atrium at Stoneridge [Member]	Dec. 31, 2013 Atrium at Stoneridge [Member] sqft		Jul. 10, 2013 Waterstone and Meridian [Member] Property sqft	Dec. 31, 2013 Waterstone and Meridian [Member] sqft	Jul. 17, 2013 Bank of America Plaza [Member]	Sep. 30, 2013 Bank of America Plaza [Member] sqft	Dec. 31, 2013 Bank of America Plaza [Member] sqft	Oct. 31, 2013 Parent Company [Member] Lakewood II [Member]	Nov. 08, 2013 Parent Company [Member] Carmel Crossing [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of real estate							$ 3,100,000																				$ 7,100,000							$ 9,500,000		$ 40,800,000
Gain (Loss) on Sale of Properties							5,900,000																				14,600,000												1,800,000	4,400,000
Summary of Dispositions [Abstract]
Square Feet (in square feet)	1,183,000	[1]	3,978,000	[2]	3,711,000			123,000	123,000	124,000				1,956,000	107,000	32,000	1,013,000	1,932,000	1,932,000									326,000	326,000			108,000	[3]					436,000
Gross sales price																		147,700,000	147,700,000							168,800,000
Parkway's share of Gross Sales Price of assets under agreement to sell	97,400,000
Net proceeds from the sale							3,100,000						14,200,000	14,200,000					94,300,000							14,800,000	7,100,000			3,000,000		3,000,000			9,500,000			40,800,000
Number of real estate properties sold					9									13				15	15		6		4		5	4
Number of assets under agreement that have completed sale											4			9
Area of property under agreement to sell (in millions of square feet)												2,700,000
Gross sales price of assets under agreement to sell							10,600,000					344,300,000																						10,200,000		42,800,000
Mortgage loans assumed by buyer for property sold											292,000,000			292,000,000			147,900,000	41,700,000	41,700,000
Proportionate share of mortgage loans assumed											82,400,000			82,400,000				31,900,000	31,900,000
Number of non-core assets sold												13	4					15	15	6		4		5
Impairment of long-lived assets																																		4,600,000
Debt extinguishment costs																											2,100,000													600,000
Area of real estate property (in square feet)	17,600,000					337,000	123,000	123,000	123,000	124,000				2,700,000	107,000	32,000	1,013,000										326,000			108,000		108,000			190,000		436,000	436,000
Gross sales price of assets sold																											37,500,000			3,100,000
Gain on sale of real estate from discontinued operations	$ 32,493,000	[1]	$ 12,938,000	[2]	$ 17,825,000			$ 5,900,000	$ 5,837,000	$ 3,245,000				$ 11,258,000	$ 1,357,000	$ (98,000)	$ 3,000		$ 3,329,000									$ 14,600,000	$ 14,569,000		$ 542,000	$ 542,000	[3]		$ 4,600,000	$ 11,500,000	$ 11,500,000	$ 11,450,000
Ownership interest in property																																							30.00%	30.00%
Number of properties under agreement to sell																																		2
Area of real estate property held for sale																																		190,000

[1] Total gain on the sale of real estate in discontinued operations recognized during the year ended December 31, 2013 was $32.5 million, of which $18.2 million was the Company's proportionate share.

[2] Total gain on the sale of real estate in discontinued operations recognized for the year ended December 31, 2012 was $12.9 million, of which $8.1 million was the Company's proportionate share.

[3] Impairment loss incurred in year ended December 31, 2012.