Summary of Significant Accounting Policies - Noncontrolling Interest (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended					0 Months Ended
	Jul. 02, 2012 Parkway Properties Office Fund I, LP [Member] Property	Dec. 31, 2013 Parkway Properties Office Fund I, LP [Member] Property sqft	Dec. 31, 2013 Corporate Joint Venture Term-extension	Dec. 31, 2013 Limited Partner [Member] Corporate Joint Venture	Dec. 31, 2013 General Partner [Member] Corporate Joint Venture	Dec. 31, 2013 Lincoln Place [Member]	Dec. 06, 2013 Office Building [Member] Lincoln Place [Member] FLORIDA
Noncontrolling Interest [Line Items]
Number of common units issued in a business acquisition						4,400,000	900,000
Cumulative preferred return threshold for pro rata cash distributions			9.00%
Distribution percentage to partners (in hundredths)				56.00%	44.00%
Term of the fund			7 years
Number of term extension provisions			2
Length of extension term			1 year
Number of properties under agreement to sell		13
Area of property under agreement to sell		2,700,000
Gross sales price of assets under agreement to sell		$ 344.3
Number of assets under agreement that have completed sale	13
Number of common units outstanding in a business acquisition						4,200,000