Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash Flows From Operating Activities
Net income	$ 74,242	$ 60,558
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	115,382	126,216
Amortization of deferred financing costs and debt premiums and discount	516	1,626
Amortization of acquired above- and below-market leases, net	(6,285)	(14,662)
Amortization of acquired below-market ground leases	5,873	5,873
Straight-lining of rental revenue	(21,495)	(15,165)
Equity based compensation	7,254	4,259
Increase (decrease) in cash flows due to changes in operating assets and liabilities:
Restricted cash	3,120	5,268
Tenant and other receivables	(788)	(8,661)
Deferred leasing costs	(18,642)	(26,533)
Prepaid expenses and other assets	16,775	14,745
Accounts payable and accrued expenses	(6,671)	(4,107)
Deferred revenue and other liabilities	(7,213)	10,190
Net cash provided by operating activities	162,068	159,607
Cash Flows From Investing Activities
Decrease (increase) in restricted cash for investing activities	558	(672)
Development costs	(450)	(493)
Additions to building and improvements	(120,401)	(103,835)
Net cash used in investing activities	(120,293)	(105,000)
Cash Flows From Financing Activities
Proceeds from mortgage notes payable	50,000	0
Repayment of mortgage notes payable	(29,220)	(143,903)
Proceeds from unsecured revolving credit facility	50,000	615,000
Repayments of unsecured revolving credit facility	(90,000)	(595,000)
Repayments of term loan and credit facility	0	(470,000)
Proceeds from senior unsecured notes	0	350,000
Proceeds from unsecured term loan	0	265,000
Net proceeds from the sale of common stock	611,278	0
Deferred financing costs	(2,905)	(6,128)
Private perpetual preferred unit distributions	(702)	(702)
Dividends paid to common stockholders	(39,491)	(29,056)
Distributions paid to non-controlling interests in the operating partnership	(43,123)	(39,162)
Net cash provided by (used in) financing activities	505,837	(53,951)
Net increase in cash and cash equivalents	547,612	656
Cash and cash equivalents—beginning of period	46,685	45,732
Cash and cash equivalents—end of period	594,297	46,388
Supplemental disclosures of cash flow information:
Cash paid for interest	53,286	49,305
Cash paid for income taxes	3,495	3,258
Non-cash investing and financing activities:
Building and improvements included in accounts payable and accrued expenses	71,444	47,029
Derivative instruments at fair values included in accounts payable and accrued expenses	31,227	4,384
Conversion of operating partnership units and Class B shares to Class A shares	$ 19,941	$ 53,120