Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Basic net income (loss) attributable to common stockholders	$ 14,132	$ (9,845)	$ 21,407	$ 1,000
Effect of net income (loss) attributable to noncontrolling interests - unit holders	607	(571)	955	(7)
Diluted net income (loss) attributable to common stockholders	$ 14,739	$ (10,416)	$ 22,362	$ 993
Basic weighted average shares outstanding	111,543	99,092	111,381	98,219
Diluted adjusted weighted average shares outstanding	116,666	99,092	116,638	103,619
Basic and diluted net income (loss) per share attributable to Parkway Properties, Inc. (in dollars per share)	$ 0.13	$ (0.10)	$ 0.19	$ 0.01
Operating Partnership Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of share-based compensation (in shares)	4,833	0	4,973	5,200
Restricted Stock Units (RSUs)
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of share-based compensation (in shares)	198	0	194	138
Restricted Stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of share-based compensation (in shares)	5	0	5	13
Deferred Incentive Share Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of share-based compensation (in shares)	4	0	5	10
LTIP Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Effect of share-based compensation (in shares)	83	0	80	39