Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING ACTIVITIES
Net income	$ 4,315	$ 4,891
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	47,497	42,662
Other amortization	1,491	727
Share-based compensation	2,599	2,639
Amortization of straight-line rent receivable (lessor)	(1,043)	(668)
Amortization of straight-line rent on operating leases (lessee)	375	390
(Gain) loss on sales of real estate assets	49	(15)
Loss from unconsolidated joint ventures	11	10
Distributions from unconsolidated joint ventures	118	88
Changes in operating assets and liabilities:
Other assets, including right-of-use-assets	(4,032)	(4,971)
Accounts payable and accrued liabilities	(10,005)	(10,276)
Other liabilities	(2,931)	(673)
Net cash provided by operating activities	38,444	34,804
INVESTING ACTIVITIES
Acquisitions of real estate	(83,580)	(91,787)
Development of real estate	(2,451)	(5,712)
Additional long-lived assets	(22,164)	(11,741)
Net cash used in investing activities	(108,195)	(109,240)
FINANCING ACTIVITIES
Net repayments on unsecured credit facility	(78,000)	(2,000)
Borrowings of notes and bonds payable	298,995
Repayments on notes and bonds payable	(7,202)	(1,193)
Dividends paid	(40,416)	(37,614)
Net proceeds from issuance of common stock	7,213	120,617
Common stock redemptions	(892)	(2,442)
Settlement of treasury rate locks	(4,267)
Debt issuance and assumption costs	(2,646)
Payments made on finance leases	(321)	0
Net cash provided by financing activities	172,464	77,368
Increase in cash and cash equivalents	102,713	2,932
Cash and cash equivalents at beginning of period	657	8,381
Cash and cash equivalents at end of period	103,370	11,313
Supplemental Cash Flow Information
Interest paid	11,428	11,071
Invoices accrued for construction, tenant improvements and other capitalized costs	12,830	13,509
Mortgage notes payable assumed upon acquisition (adjusted to fair value)	19,269
Capitalized interest	$ 421	$ 307