Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Real Estate Properties

The Company’s investment properties as of December 31, 2018 and December 31, 2017 were as follows:

($ in thousands)	Balance at
	December 31, 2018		December 31, 2017
Investment properties, at cost:
Land, buildings and improvements	$	3,600,743	$	3,904,291
Furniture, equipment and other	7,741		8,453
Construction in progress	32,636		45,140
	$	3,641,120	$	3,957,884

Allowance for Credit Losses on Financing Receivables

Accounts are written off when, in the opinion of management, the balance is uncollectible. 

($ in thousands)	2018			2017			2016
Balance, beginning of year	$	3,487		$	3,998		$	4,325
Provision for credit losses and accrued straight-line rent, net of recoveries	3,461			2,786			2,771
Accounts written off	(2,648		)	(3,297		)	(3,098		)
Balance, end of year	$	4,300		$	3,487		$	3,998

Schedule of Concentration by Risk Factor

Total billed receivables due from tenants leasing space in the states of Florida, Indiana, and Texas, consisted of the following as of December 31, 2018 and 2017: 

	As of December 31, 2018
	2018		2017
Florida	56	%	61	%
Indiana	14	%	9	%
Texas	3	%	4	%

For the years ended December 31, 2018, 2017, and 2016, the Company's revenue recognized from tenants leasing space in the states of Florida, Indiana, and Texas, were as follows:  

	Year Ended December 31,
	2018		2017		2016
Florida	25	%	24	%	25	%
Indiana	15	%	14	%	15	%
Texas	12	%	13	%	13	%

Schedule of Stockholders Equity

The non-redeemable noncontrolling interests in consolidated properties for the years ended December 31, 2018, 2017, and 2016 were as follows:

($ in thousands)	2018		2017		2016
Noncontrolling interests balance January 1	$	698	$	692	$	773
Net income allocable to noncontrolling interests,   excluding redeemable noncontrolling interests	—		6		171
Distributions to noncontrolling interests	—		—		(252		)
Noncontrolling interests balance at December 31	$	698	$	698	$	692

Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net

For the years ended December 31, 2018, 2017, and 2016, the weighted average interests of the Parent Company and the limited partners in the Operating Partnership were as follows:  

	Year Ended December 31,
	2018		2017		2016
Parent Company’s weighted average interest in   Operating Partnership	97.6	%	97.7	%	97.7	%
Limited partners' weighted average interests in Operating Partnership	2.4	%	2.3	%	2.3	%

Redeemable Noncontrolling Interest

The redeemable noncontrolling interests in the Operating Partnership and subsidiaries for the years ended December 31, 2018, 2017, and 2016 were as follows: 

($ in thousands)	2018			2017			2016
Redeemable noncontrolling interests balance January 1	$	72,104		$	88,165		$	92,315
Net income allocable to redeemable noncontrolling interests	116			2,009			1,756
Distributions declared to redeemable noncontrolling interests	(3,788		)	(4,155		)	(3,993		)
Payment for partial redemption of redeemable noncontrolling interests	(22,461		)	(8,261		)	—
Other, net including adjustments to redemption value	(228		)	(5,654		)	(1,913		)
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31	$	45,743		$	72,104		$	88,165
Limited partners' interests in Operating Partnership	$	35,673		$	39,573		$	47,373
Other redeemable noncontrolling interests in certain subsidiaries	10,070			32,531			40,792
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31	$	45,743		$	72,104		$	88,165

Summary of Cash and Cash Equivalents

The following is a summary of our cash, cash equivalents, and restricted cash total as presented in our statements of cash flows for the years ended December, 2018, 2017, and 2016:

	As of December 31,
	2018		2017		2016
Cash and cash equivalents	$	35,376	$	24,082	$	19,875
Restricted cash	10,130		8,094		9,037
Total cash, cash equivalents, and restricted cash	$	45,506	32,176		28,912

Summary of Restricted Cash

The following is a summary of our cash, cash equivalents, and restricted cash total as presented in our statements of cash flows for the years ended December, 2018, 2017, and 2016:

	As of December 31,
	2018		2017		2016
Cash and cash equivalents	$	35,376	$	24,082	$	19,875
Restricted cash	10,130		8,094		9,037
Total cash, cash equivalents, and restricted cash	$	45,506	32,176		28,912