Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Basic net income (loss) attributable to common stockholders	$ (2,159)	$ 14,132	$ 59,234	$ 21,407
Effect of net income (loss) attributable to noncontrolling interests - unit holders	(89)	607	2,566	955
Diluted net income (loss) attributable to common stockholders	$ (2,248)	$ 14,739	$ 61,800	$ 22,362
Denominator:
Basic weighted average shares outstanding (in shares)	111,725	111,543	111,692	111,381
Diluted adjusted weighted average shares outstanding (in shares)	111,725	116,666	116,957	116,638
Basic net income (loss) per common share attributable to Parkway Properties, Inc. (in dollars per share)	$ (0.02)	$ 0.13	$ 0.53	$ 0.19
Diluted net income (loss) per common share attributable to Parkway Properties, Inc. (in dollars per share)	$ (0.02)	$ 0.13	$ 0.53	$ 0.19
Effect of Operating Partnership units
Denominator:
Effect of share-based compensation (in shares)	0	4,833	4,830	4,973
Effect of restricted shares
Denominator:
Effect of share-based compensation (in shares)	0	5	0	5
Effect of deferred incentive share units
Denominator:
Effect of share-based compensation (in shares)	0	4	0	5
Effect of LTIP units
Denominator:
Effect of share-based compensation (in shares)	0	83	115	80
Time-Vesting RSUs | Effect of performance-vesting RSUs
Denominator:
Effect of share-based compensation (in shares)	0	198	230	194
Performance-Vesting RSUs | Effect of performance-vesting RSUs
Denominator:
Effect of share-based compensation (in shares)	0	0	90	0