CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Rental and tenant reimbursement revenue	$ 514,619	$ 519,953	$ 511,905
Total revenues	528,710	535,024	533,178
Expenses:
Property operating costs	210,932	214,933	211,380
Depreciation	120,615	110,575	106,015
Amortization	85,992	93,294	76,666
Impairment loss on real estate assets	41,000	0	8,953
General and administrative	30,252	27,464	37,895
Total expenses	488,791	446,266	440,909
Other income (expense):
Interest expense	(51,292)	(54,990)	(61,594)
Other income	10,206	2,587	1,571
Loss on extinguishment of debt	0	(9,336)	0
Gain on sale of real estate assets	0	205,666	197,010
Total other income (expense)	(41,086)	143,927	136,987
Net income/(loss)	(1,167)	232,685	229,256
Net loss applicable to noncontrolling interest	14	3	5
Net income/(loss) applicable to Piedmont	$ (1,153)	$ 232,688	$ 229,261
Per share information— basic and diluted:
Basic earnings per share (in dollars per share)	$ (0.01)	$ 1.85	$ 1.82
Diluted earnings per share (in dollars per share)	$ (0.01)	$ 1.85	$ 1.82
Weighted-average shares outstanding - basic (in shares)	123,977,616	125,730,460	125,709,207
Weighted-average shares outstanding - diluted (in shares)	123,977,616	126,104,321	126,182,137
Property management fee revenue
Revenues:
Property related revenue	$ 2,496	$ 2,867	$ 3,398
Other property related income
Revenues:
Property related revenue	$ 11,595	$ 12,204	$ 17,875