Supplemental Cash Flow Elements (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flows, operating unit

Supplemental cash flow information follows (in thousands):

	Year Ended December 31,
	2017		2016		2015
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $44,757, $47,675, and $50,923 as of    December 31, 2017, 2016 and 2015, respectively	$	67,336	$	54,295	$	54,747
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment    properties	$	116,089	$	62,589	$	109,715
Tenant improvements funded directly by tenants	$	15,314	$	18,050	$	13,387
Assumption of other assets and liabilities in connection with operating and development    property acquisitions, net (Note 3)	$	1,443	$	5,863	$	6,254
Accrual for receivable related to development properties	$	—	$	1,350	$	—
Release of holdback funds to third party	$	—	$	—	$	9,279
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common     unitholders (Notes 13 and 27)	$	43,448	$	220,650	$	33,336
Accrual of dividends and distributions payable to preferred stockholders and preferred    unitholders (Note 13)	$	—	$	1,656	$	1,656
Issuance of common units of the Operating Partnership in connection with an acquisition (Note 3)	$	—	$	48,033	$	—
Secured debt assumed by buyers in connection with land disposition (Note 4)	$	—	$	2,322	$	—
Exchange of common units of the Operating Partnership into shares of the Company’s    common stock	$	10,939	$	8,893	$	1,223

Supplemental cash flow information follows (in thousands):

	Year Ended December 31,
	2017		2016		2015
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $44,757, $47,675, and $50,923 as of December 31, 2017, 2016 and 2015, respectively	$	67,336	$	54,295	$	54,747
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	116,089	$	62,589	$	109,715
Tenant improvements funded directly by tenants	$	15,314	$	18,050	$	13,387
Assumption of other assets and liabilities in connection with operating and development property acquisitions, net (Note 3)	$	1,443	$	5,863	$	6,254
Accrual for receivable related to development properties	$	—	$	1,350	$	—
Release of holdback funds to third party	$	—	$	—	$	9,279
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders (Notes 14 and 27)	$	43,448	$	220,650	$	33,336
Accrual of dividends and distributions payable to preferred stockholders and preferred unitholders (Note 14)	$	—	$	1,656	$	1,656
Issuance of common units in connection with a development property acquisition (Note 3)	$	—	$	48,033	$	—
Secured debt assumed by buyers in connection with land disposition (Note 4)	$	—	$	2,322	$	—