Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income applicable to Piedmont	$ 8,943	$ 8,422	$ 210,079	$ 66,783
Other comprehensive loss:
Effective portion of loss on derivative instruments that are designated and qualify as cash flow hedges (See Note 5)	(2,443)	(1,386)	(26,949)	(6,874)
Plus/(less): Reclassification of net (gain)/loss included in net income (See Note 5)	810	(427)	989	(1,871)
Other comprehensive loss	(1,633)	(1,813)	(25,960)	(8,745)
Comprehensive income applicable to Piedmont	$ 7,310	$ 6,609	$ 184,119	$ 58,038