Net Income (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Basic net income (loss) attributable to common stockholders	$ 8,677	$ 37,251	$ 14,132	$ 7,275	$ 42,428	$ (485)	$ (9,845)	$ 10,845	$ 67,335	$ 42,943	$ (29,687)
Effect of net income attributable to noncontrolling interests - unit holders									2,947	2,089	0
Diluted net income (loss) attributable to common stockholders									$ 70,282	$ 45,032	$ (29,687)
Denominator:
Basic weighted average shares outstanding	111,614	111,583	111,543	111,216	111,076	100,016	99,092	97,356	111,490	101,913	66,336
Diluted adjusted weighted average shares outstanding	116,760	116,723	116,666	116,531	116,521	100,016	99,092	102,614	116,691	107,319	66,336
Basic and diluted net income (loss) per share attributable to Parkway Properties, Inc. (in dollars per share)									$ 0.60	$ 0.42	$ (0.45)
Effect of Operating Partnership Units
Denominator:
Incremental common shares attributable to dilutive effect of share-based compensation									4,903	5,200	0
Effect of RSUs
Denominator:
Incremental common shares attributable to dilutive effect of share-based compensation									205	182	0
Effect of restricted shares
Denominator:
Incremental common shares attributable to dilutive effect of share-based compensation									5	13	0
Effect of deferred incentive share units
Denominator:
Incremental common shares attributable to dilutive effect of share-based compensation									3	11	0
Effect of LTIP units
Denominator:
Incremental common shares attributable to dilutive effect of share-based compensation									85	0	0