Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 80,765	$ 219,959	$ 80,104
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of investment properties	(5,437)	(133,059)	(77,114)
Depreciation and amortization, including discontinued operations	181,382	196,745	145,293
Amortization of deferred financing costs and premium/discount on notes payable	2,417	(2,139)	(1,595)
Stock-based compensation expense, net of forfeitures	3,399	2,994	2,152
Effect of non-cash adjustments to rental revenues	(32,401)	(40,410)	(25,873)
Income from unconsolidated joint ventures	(12,224)	(47,115)	(10,562)
(Gain) loss on extinguishment of debt	16,756	11,065	14,184
(Gain) loss on extinguishment of debt	(8)	(2,258)	5,180
Other	0	0	4,526
Changes in other operating assets and liabilities:
Change in other receivables and other assets, net	(6,049)	11,456	2,156
Change in operating liabilities, net	434	(5,589)	(20,749)
Net cash provided by operating activities	229,034	211,649	117,702
Proceeds from investment property sales
Proceeds from investment property sales	372	370,944	622,643
Proceeds from sale of interest in unconsolidated joint venture	0	12,514	0
Property acquisition, development, and tenant asset expenditures	(223,636)	(319,975)	(193,534)
Investment in unconsolidated joint ventures	0	(13,382)	0
Investment in unconsolidated joint ventures	(50,933)	(20,080)	(28,531)
Cash and restricted cash acquired in merger with Parkway Properties, Inc.	0	0	93,753
Distributions from unconsolidated joint ventures	2,032	75,506	949
Investment in marketable securities	0	0	(21,190)
Change in notes receivable and other assets	(8,317)	6,583	(8,241)
Other	(4,002)	0	0
Net cash provided by (used in) investing activities	(284,484)	112,110	465,849
Proceeds from credit facility
Proceeds from credit facility	8,000	589,300	716,800
Repayment of credit facility	(8,000)	(723,300)	(674,800)
Proceeds from issuance of notes payable	0	350,000	870,000
Repayment of notes payable	(31,402)	(495,913)	(907,300)
Payment of deferred financing costs	(6,166)	(2,074)	0
Cash distributed to Parkway, Inc.	0	0	(192,755)
Repurchase of Common Stock	0	0	(13,743)
Common stock issued, net of expenses	0	211,521	0
Contributions from noncontrolling interests	1,497	2,646	4,126
Distributions to nonredeemable noncontrolling interests	(2,653)	(1,807)	(286,122)
Common dividends paid	(107,167)	(99,151)	(50,548)
Other	(1,709)	(557)	(4,195)
Net cash used in financing activities	(147,600)	(169,335)	(538,537)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	(203,050)	154,424	45,014
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	205,745	51,321	6,307
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	$ 2,695	$ 205,745	$ 51,321