Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ (29,457)	$ (94,221)
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for impairment	0	(1,666)
Cash flows from investing activities:
Proceeds from sale of real estate investments	15,230	38,705
Parent Company [Member]
Real Estate Received Through Foreclosure On Notes Receivable	6,000	0
Partnership units issued for acquisition of real estate	13,100	0
Proceeds from Issuance of Unsecured Debt	953,115	0
Cash flows from operating activities:
Net income	(29,457)	(94,221)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	152,284	79,015
Amortization of deferred loan cost and debt premium	4,769	4,831
Amortization of above and below Market Leases	(11,683)	(1,176)
Share-based Compensation	13,826	5,189
Stock-based compensation, net of capitalization	1,624	1,723
Equity in income of investments in real estate partnerships	(21,583)	(23,971)
Gain on sale of real estate, net of tax	(4,781)	(13,417)
Provision for impairment	0	(1,666)
Gain (Loss) on Extinguishment of Debt	(12,404)	0
Distribution of earnings from operations of investments in real estate partnerships	(26,271)	(26,159)
Deferred compensation expense	1,948	429
Realized and unrealized (gain) loss on investments	(1,951)	(446)
Increase (Decrease) in Restricted Cash for Operating Activities	1,228	31
Changes in assets and liabilities:
Accounts receivable, net	10,639	1,143
Straight-line rent receivables, net	(8,887)	(3,071)
Deferred leasing costs	(6,701)	(5,386)
Other assets	3,617	(1,718)
Accounts payable and other liabilities	(23,850)	(9,447)
Tenants’ security, escrow deposits and prepaid rent	1,291	(2,693)
Net cash provided by operating activities	175,842	151,297
Cash flows from investing activities:
Acquisition of operating real estate	(345)	(297,448)
Payments for Deposits on Real Estate Acquisitions	(100)	(1,500)
Payments for Merger Related Costs	(648,957)	0
Real estate development and capital improvements	(161,574)	(75,320)
Proceeds from sale of real estate investments	15,344	36,751
Payments for (Proceeds from) Loans Receivable	2,837	0
Investments in real estate partnerships	(3,064)	(3,823)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	30,612	25,746
Dividends on investment securities	128	137
Acquisition of securities	(9,853)	(46,306)
Proceeds from sale of securities	10,877	45,739
Net cash used in investing activities	(769,769)	(316,024)
Cash flows from financing activities:
Net proceeds from common stock issuance	0	149,788
Proceeds from sale of treasury stock	76	904
Distributions to limited partners in consolidated partnerships, net	(5,891)	(2,214)
Distributions to exchangeable operating partnership unit holders	(264)	(154)
Dividends paid to common stockholders	(142,944)	(97,061)
Dividends paid to preferred stockholders	(4,366)	(10,531)
Proceeds from unsecured credit facilities	905,000	295,000
Repayment of unsecured credit facilities	(620,000)	(150,000)
Proceeds from notes payable	124,088	20,000
Repayments of Notes Payable	(232,839)	(41,584)
Scheduled principal payments	(4,789)	(3,062)
Payment of loan costs	(11,832)	(292)
Payments of Debt Extinguishment Costs	(12,419)	0
Net cash provided by financing activities	677,937	152,810
Payments Related to Tax Withholding for Share-based Compensation	(18,998)	(7,984)
Payments for Repurchase of Preferred Units	250,000	0
Cash and cash equivalents at beginning of the period	13,256	36,856
Cash and cash equivalents at end of the period	97,266	24,939
Net increase (decrease) in cash and cash equivalents	84,010	(11,917)
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $3,290 and $1,766 in 2017 and 2016, respectively)	43,643	44,153
Income Taxes Paid	899	0
Supplemental disclosure of non-cash transactions:
Common stock issued under dividend reinvestment plan	607	547
Contributions from limited partners in consolidated partnerships, net	286	8,420
Common stock issued for dividend reinvestment in trust	366	384
Contribution of stock awards into trust	1,372	1,488
Distribution of stock held in trust	640	4,060
Unrealized Gain (Loss) on Securities	43	37
Deconsolidation of previously consolidated partnership [Abstract]
Noncash or Part Noncash Acquisition, Debt Assumed	757,399	0
Common stock exchanged for Equity One shares	(4,471,808)	0
Partnership Interest [Member]
Real Estate Received Through Foreclosure On Notes Receivable	6,000	0
Partnership units issued for acquisition of real estate	13,100	0
Proceeds from Issuance of Unsecured Debt	953,115	0
Cash flows from operating activities:
Net income	(29,457)	(94,221)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	152,284	79,015
Amortization of deferred loan cost and debt premium	4,769	4,831
Amortization of above and below Market Leases	(11,683)	(1,176)
Share-based Compensation	13,826	5,189
Stock-based compensation, net of capitalization	1,624	1,723
Equity in income of investments in real estate partnerships	(21,583)	(23,971)
Gain on sale of real estate, net of tax	(4,781)	(13,417)
Provision for impairment	0	(1,666)
Gain (Loss) on Extinguishment of Debt	(12,404)	0
Distribution of earnings from operations of investments in real estate partnerships	(26,271)	(26,159)
Deferred compensation expense	1,948	429
Realized and unrealized (gain) loss on investments	(1,951)	(446)
Increase (Decrease) in Restricted Cash for Operating Activities	1,228	31
Changes in assets and liabilities:
Accounts receivable, net	10,639	1,143
Straight-line rent receivables, net	(8,887)	(3,071)
Deferred leasing costs	(6,701)	(5,386)
Other assets	3,617	(1,718)
Accounts payable and other liabilities	(23,850)	(9,447)
Tenants’ security, escrow deposits and prepaid rent	1,291	(2,693)
Net cash provided by operating activities	175,842	151,297
Cash flows from investing activities:
Acquisition of operating real estate	(345)	(297,448)
Payments for Deposits on Real Estate Acquisitions	(100)	(1,500)
Payments for Merger Related Costs	(648,957)	0
Real estate development and capital improvements	(161,574)	(75,320)
Proceeds from sale of real estate investments	15,344	36,751
Payments for (Proceeds from) Loans Receivable	2,837	0
Investments in real estate partnerships	(3,064)	(3,823)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	30,612	25,746
Dividends on investment securities	128	137
Acquisition of securities	(9,853)	(46,306)
Proceeds from sale of securities	10,877	45,739
Net cash used in investing activities	(769,769)	(316,024)
Cash flows from financing activities:
Net proceeds from common units issued as a result of common stock issued by Parent Company	0	149,788
Proceeds from sale of treasury stock	76	904
Distributions to limited partners in consolidated partnerships, net	(5,891)	(2,214)
Dividends paid to common stockholders	(143,208)	(97,215)
Dividends paid to preferred stockholders	(4,366)	(10,531)
Proceeds from unsecured credit facilities	905,000	295,000
Repayment of unsecured credit facilities	(620,000)	(150,000)
Proceeds from notes payable	124,088	20,000
Repayments of Notes Payable	(232,839)	(41,584)
Scheduled principal payments	(4,789)	(3,062)
Payment of loan costs	(11,832)	(292)
Payments of Debt Extinguishment Costs	(12,419)	0
Net cash provided by financing activities	677,937	152,810
Payments for Repurchase of Common Stock	(18,998)	(7,984)
Payments for Repurchase of Preferred Units	250,000	0
Cash and cash equivalents at beginning of the period	13,256	36,856
Cash and cash equivalents at end of the period	97,266	24,939
Net increase (decrease) in cash and cash equivalents	84,010	(11,917)
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $3,290 and $1,766 in 2017 and 2016, respectively)	43,643	44,153
Proceeds from Income Tax Refunds	899
Income Taxes Paid		0
Supplemental disclosure of non-cash transactions:
Common stock issued under dividend reinvestment plan	607	547
Contributions from limited partners in consolidated partnerships, net	286	8,420
Common stock issued for dividend reinvestment in trust	366	384
Contribution of stock awards into trust	1,372	1,488
Distribution of stock held in trust	640	4,060
Unrealized Gain (Loss) on Securities	43	37
Deconsolidation of previously consolidated partnership [Abstract]
Noncash or Part Noncash Acquisition, Debt Assumed	757,399	0
Units Issued to Parent Company for common stock exchanged for Equity One shares	$ (4,471,808)	$ 0