Consolidated Balance Sheets - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Net income (loss) attributable to redeemable noncontrolling interest	$ 100
Investment properties:
Land and improvements	201,372	$ 189,759
Building and improvements	2,577,895	2,402,643
Tenant improvements	15,646	14,133
Acquired lease intangibles	341,417	301,462
Gross real estate property	3,136,330	2,907,997
Accumulated depreciation	(204,516)	(181,785)
Net real estate property	2,931,814	2,726,212
Real estate held for sale	11,926	0
Real estate loans receivable	40,258	39,154
Investment in unconsolidated entity	2,231	2,258
Net real estate investments	2,986,229	2,767,624
Cash and cash equivalents	117,484	15,491
Tenant receivables, net	6,882	9,790
Other assets	85,798	95,187
Total assets	3,196,393	2,888,092
Liabilities:
Credit facility	243,163	643,742
Notes payable	619,972	224,330
Mortgage debt	143,543	123,083
Accounts payable	3,126	4,423
Dividends and distributions payable	36,485	32,179
Accrued expenses and other liabilities	36,206	42,287
Acquired lease intangibles, net	9,433	9,253
Total liabilities	1,091,928	1,079,297
Redeemable noncontrolling interest - Series A Preferred Units (2016) and partially owned properties	11,931	26,477
Equity:
Common shares, $0.01 par value, 500,000,000 common shares authorized, 153,496,106 and 135,966,013 common shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	1,535	1,360
Additional paid-in capital	2,230,631	1,920,644
Accumulated deficit	(225,856)	(197,261)
Accumulated other comprehensive income	14,533	13,708
Total shareholders’ equity	2,020,843	1,738,451
Noncontrolling interests:
Operating Partnership		43,142
Partially owned properties		725
Total noncontrolling interests	71,691	43,867
Total equity	2,092,534	1,782,318
Total liabilities and equity	3,196,393	2,888,092
Operating Partnership
Investment properties:
Land and improvements	201,372	189,759
Building and improvements	2,577,895	2,402,643
Tenant improvements	15,646	14,133
Acquired lease intangibles	341,417	301,462
Gross real estate property	3,136,330	2,907,997
Accumulated depreciation	(204,516)	(181,785)
Net real estate property	2,931,814	2,726,212
Real estate held for sale	11,926	0
Real estate loans receivable	40,258	39,154
Investment in unconsolidated entity	2,231	2,258
Net real estate investments	2,986,229	2,767,624
Cash and cash equivalents	117,484	15,491
Tenant receivables, net	6,882	9,790
Other assets	85,798	95,187
Total assets	3,196,393	2,888,092
Liabilities:
Credit facility	243,163	643,742
Notes payable	619,972	224,330
Mortgage debt	143,543	123,083
Accounts payable	3,126	4,423
Dividends and distributions payable	36,485	32,179
Accrued expenses and other liabilities	36,206	42,287
Acquired lease intangibles, net	9,433	9,253
Total liabilities	1,091,928	1,079,297
Redeemable noncontrolling interest - Series A Preferred Units (2016) and partially owned properties	11,931	26,477
Equity:
General partners’ capital, 153,496,106 and 135,966,013 units issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	2,006,310	1,724,743
Limited partners’ capital, 5,410,688 and 3,436,207 units issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	71,043	43,142
Accumulated other comprehensive income	14,533	13,708
Total partners’ capital	2,091,886	1,781,593
Noncontrolling interests:
Noncontrolling interest - partially owned properties	648	725
Total capital	2,092,534	1,782,318
Total liabilities and equity	3,196,393	2,888,092
Operating Partnership Noncontrolling Interest
Noncontrolling interests:
Operating Partnership	71,043
Total equity	71,043	43,142
Partially Owned Properties Noncontrolling Interest
Noncontrolling interests:
Partially owned properties	648
Total equity	648	725
Partially Owned Properties Noncontrolling Interest | Operating Partnership
Noncontrolling interests:
Total capital	$ 648	$ 725