Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 41,794	$ 40,971
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	64,971	61,677
Depreciation of non-real estate furniture, fixtures and equipment	1,164	1,038
(Recoveries of) provision for bad debts and write-offs (Note 1)	(3,543)	(265)
Non-cash amortization of share-based compensation awards	7,211	3,598
Non-cash amortization of deferred financing costs and debt discounts and premiums	135	315
Non-cash amortization of net below market rents	(2,094)	(2,543)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(3,817)	(4,281)
Straight-line rents	(12,895)	(5,359)
Amortization of right of use ground lease assets	144
Net change in other operating assets	(8,382)	(4,640)
Net change in other operating liabilities	15,102	3,598
Net cash provided by operating activities	99,790	94,109
CASH FLOWS FROM INVESTING ACTIVITIES:
Expenditures for development properties and undeveloped land	(181,695)	(111,424)
Expenditures for operating properties	(31,837)	(35,302)
Expenditures for acquisition of operating properties	0	(111,029)
Net increase in acquisition-related deposits	0	(5,000)
Proceeds received from repayment of note receivable	0	15,100
Net cash used in investing activities	(213,532)	(247,655)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on unsecured revolving credit facility (Note 3)	190,000	90,000
Repayments on unsecured revolving credit facility (Note 3)	(50,000)	(10,000)
Borrowings on unsecured debt	0	120,000
Principal payments and repayments of secured debt (Note 3)	(74,930)	(878)
Financing costs	(942)	(460)
Repurchase of common stock and restricted stock units	(12,130)	(13,642)
Distributions to noncontrolling interests in consolidated property partnerships	(6,301)	(2,170)
Dividends and distributions paid to common stockholders and common unitholders	(46,996)	(43,033)
Net cash (used in) provided by financing activities	(1,299)	139,817
Net decrease in cash and cash equivalents and restricted cash	(115,041)	(13,729)
Cash and cash equivalents and restricted cash, beginning of period	171,034	66,798
Cash and cash equivalents and restricted cash, end of period	$ 55,993	$ 53,069