Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Real estate assets, at cost:
Land	$ 506,440	$ 470,432
Buildings and improvements, less accumulated depreciation of $772,122 and $718,070 as of September 30, 2019 and December 31, 2018, respectively	2,327,055	2,121,570
Intangible lease assets, less accumulated amortization of $77,483 and $87,391 as of September 30, 2019 and December 31, 2018, respectively	88,371	77,676
Construction in progress	13,866	15,848
Real estate assets held for sale, net	213,094	331,068
Total real estate assets	3,148,826	3,016,594
Cash and cash equivalents	10,284	4,571
Tenant receivables	10,091	10,800
Straight-line rent receivables	147,197	136,762
Restricted cash and escrows	1,820	1,463
Prepaid expenses and other assets	27,143	24,691
Goodwill	98,918	98,918
Interest rate swaps	0	1,199
Deferred lease costs, less accumulated amortization of $173,490 and $176,919 as of September 30, 2019 and December 31, 2018, respectively	267,616	236,198
Other assets held for sale, net	40,036	61,233
Total assets	3,751,931	3,592,429
Liabilities:
Unsecured debt, net of discount and unamortized debt issuance costs of $8,207 and $9,879 as of September 30, 2019 and December 31, 2018, respectively	1,689,793	1,495,121
Secured debt, net of premiums and unamortized debt issuance costs of $418 and $645 as of September 30, 2019 and December 31, 2018, respectively	189,451	190,351
Accounts payable, accrued expenses and accrued capital expenditures	114,812	93,739
Dividends payable	0	26,972
Deferred income	27,985	28,779
Intangible lease liabilities, less accumulated amortization of $49,613 and $59,144 as of September 30, 2019 and December 31, 2018, respectively	34,970	35,708
Interest rate swaps	6,862	839
Other liabilities held for sale	7,275	8,780
Total liabilities	2,071,148	1,880,289
Commitments and Contingencies (Note 8)	$ 0	$ 0
Stockholders’ Equity:
Shares-in-trust, shares authorized (in shares)	150,000,000	150,000,000
Shares-in-trust, shares outstanding (in shares)	0	0
Shares-in-trust, 150,000,000 shares authorized; none outstanding as of September 30, 2019 or December 31, 2018	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, no par value, 100,000,000 shares authorized; none outstanding as of September 30, 2019 or December 31, 2018	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares outstanding (in shares)	125,783,408	126,218,554
Common stock, $0.01 par value, 750,000,000 shares authorized; 125,783,408 and 126,218,554 shares issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	$ 1,258	$ 1,262
Additional paid-in capital	3,685,504	3,683,186
Cumulative distributions in excess of earnings	(2,007,438)	(1,982,542)
Other comprehensive income/(loss)	(283)	8,462
Piedmont stockholders’ equity	1,679,041	1,710,368
Noncontrolling interest	1,742	1,772
Total stockholders’ equity	1,680,783	1,712,140
Total liabilities and stockholders’ equity	$ 3,751,931	$ 3,592,429