Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
Net income	$ 29,586	$ 22,902
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	89,031	59,778
Amortization of deferred financing costs	1,731	1,796
Amortization of lease inducements and above/below market lease intangibles	3,780	2,994
Straight-line rental revenue/expense	(11,168)	(12,156)
Amortization of discount on unsecured senior notes	177	0
Amortization of above market assumed debt	(163)	(177)
Gain on sale of investment properties	(5,308)	0
Equity in income of unconsolidated entities	(85)	(85)
Distributions from unconsolidated entities	112	82
Change in fair value of derivative	160	(67)
Provision for bad debts	(297)	152
Non-cash share compensation	4,976	3,497
Net change in fair value of contingent consideration	4	(840)
Change in operating assets and liabilities:
Tenant receivables	(754)	(7,543)
Other assets	(541)	(6,320)
Accounts payable	2,167	1,578
Accrued expenses and other liabilities	14,834	23,832
Net cash provided by operating activities	128,242	89,423
Cash Flows from Investing Activities:
Proceeds on sales of investment properties	18,150	0
Acquisition of investment properties, net	(916,270)	(1,044,601)
Escrowed cash - acquisition / earnest deposits	(25,271)	0
Capital expenditures on existing investment properties	(14,819)	(8,665)
Real estate loans receivable	(38,844)	(8,153)
Repayment of note receivable	16,423	4,118
Repayment of real estate loan receivable	1,507	4,500
Leasing commissions	(1,184)	(707)
Lease inducements	(2,508)	(4,870)
Net cash used in investing activities	(962,816)	(1,058,378)
Cash Flows from Financing Activities:
Net proceeds from sale of common shares	804,453	764,292
Proceeds from credit facility borrowings	627,000	921,000
Payment on credit facility borrowings	(889,000)	(860,000)
Proceeds from issuance of mortgage debt	61,000	21,500
Proceeds from issuance of senior unsecured notes	396,108	225,000
Principal payments on mortgage debt	(40,999)	(1,646)
Debt issuance costs	(1,129)	(4,693)
Dividends paid - shareholders	(101,846)	(74,515)
Distributions to noncontrolling interest - Operating Partnership	(3,154)	(2,410)
Preferred distributions paid - OP Unit holder	(519)	(1,115)
Contributions from noncontrolling interest	47	0
Distributions to noncontrolling interest - partially owned properties	(1,653)	(450)
Other financing activities	(2,583)	0
Purchase of Series A Preferred Units	(19,961)	(9,756)
Purchase of OP Units	(3,757)	(2,999)
Net cash provided by financing activities	824,007	974,208
Net (decrease) increase in cash and cash equivalents	(10,567)	5,253
Cash and cash equivalents, beginning of period	15,491	3,143
Cash and cash equivalents, end of period	4,924	8,396
Supplemental disclosure of cash flow information - interest paid during the period	33,307	6,971
Supplemental disclosure of noncash activity - change in fair value of interest rate swap agreements	(1,696)	652
Supplemental disclosure of noncash activity - assumed debt	26,379	0
Supplemental disclosure of noncash activity - issuance of OP Units in connection with acquisitions	44,978	6,769
Supplemental disclosure of noncash activity - contingent consideration	0	156
Operating Partnership
Cash Flows from Operating Activities:
Net income	29,586	22,902
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	89,031	59,778
Amortization of deferred financing costs	1,731	1,796
Amortization of lease inducements and above/below market lease intangibles	3,780	2,994
Straight-line rental revenue/expense	(11,168)	(12,156)
Amortization of discount on unsecured senior notes	177	0
Amortization of above market assumed debt	(163)	(177)
Gain on sale of investment properties	(5,308)	0
Equity in income of unconsolidated entities	(85)	(85)
Distributions from unconsolidated entities	112	82
Change in fair value of derivative	160	(67)
Provision for bad debts	(297)	152
Non-cash share compensation	4,976	3,497
Net change in fair value of contingent consideration	4	(840)
Change in operating assets and liabilities:
Tenant receivables	(754)	(7,543)
Other assets	(541)	(6,320)
Accounts payable	2,167	1,578
Accrued expenses and other liabilities	14,834	23,832
Net cash provided by operating activities	128,242	89,423
Cash Flows from Investing Activities:
Proceeds on sales of investment properties	18,150	0
Acquisition of investment properties, net	(916,270)	(1,044,601)
Escrowed cash - acquisition / earnest deposits	(25,271)	0
Capital expenditures on existing investment properties	(14,819)	(8,665)
Real estate loans receivable	(38,844)	(8,153)
Repayment of note receivable	16,423	4,118
Repayment of real estate loan receivable	1,507	4,500
Leasing commissions	(1,184)	(707)
Lease inducements	(2,508)	(4,870)
Net cash used in investing activities	(962,816)	(1,058,378)
Cash Flows from Financing Activities:
Net proceeds from sale of common shares	804,453	764,292
Proceeds from credit facility borrowings	627,000	921,000
Payment on credit facility borrowings	(889,000)	(860,000)
Proceeds from issuance of mortgage debt	61,000	21,500
Proceeds from issuance of senior unsecured notes	396,108	225,000
Principal payments on mortgage debt	(40,999)	(1,646)
Debt issuance costs	(1,129)	(4,693)
Dividends paid - shareholders	(101,846)	(74,515)
Distributions to noncontrolling interest - Operating Partnership	(3,154)	(2,410)
Preferred distributions paid - OP Unit holder	(519)	(1,115)
Contributions from noncontrolling interest	47	0
Distributions to noncontrolling interest - partially owned properties	(1,653)	(450)
Other financing activities	(2,583)	0
Purchase of Series A Preferred Units	(19,961)	(9,756)
Purchase of OP Units	(3,757)	(2,999)
Net cash provided by financing activities	824,007	974,208
Net (decrease) increase in cash and cash equivalents	(10,567)	5,253
Cash and cash equivalents, beginning of period	15,491	3,143
Cash and cash equivalents, end of period	4,924	8,396
Supplemental disclosure of cash flow information - interest paid during the period	33,307	6,971
Supplemental disclosure of noncash activity - change in fair value of interest rate swap agreements	(1,696)	652
Supplemental disclosure of noncash activity - assumed debt	26,379	0
Supplemental disclosure of noncash activity - issuance of OP Units in connection with acquisitions	44,978	6,769
Supplemental disclosure of noncash activity - contingent consideration	$ 0	$ 156