SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of estimated useful lives

Depreciation or amortization expense is computed using the straight‑line method based upon the following estimated useful lives:

Asset Type	Years	Balance Sheet Location
Buildings and improvements	7 - 40	Buildings and Equipment
Equipment and fixtures	5 - 20	Buildings and Equipment
Computer hardware and software, and vehicles	3 - 5	Buildings and Equipment
Tenant improvements	Lesser of lease term or useful life	Buildings and Equipment
Leasing costs	Related lease term	Prepaid expenses and other assets, net

Categories of developments

Developments consist of the following categories as of December 31:

thousands	2020		2019
Land and improvements	$	407,926	$	423,520
Development costs	744,748		1,022,477
Total Developments	$	1,152,674	$	1,445,997

Restructuring and Related Costs

Details of the plan activities during the year ended December 31, 2020, are as follows:

thousands	Restructuring Costs
Balance at December 31, 2019	$	9,685
Charges (a)	2,650
Charges paid/settled (a)	(12,035)
Balance at December 31, 2020	$	300

(a)Charges relate to relocation, retention and severance expenses and are included in General and administrative expense in the accompanying Consolidated Statement of Operations.

Amortized cost basis on financing receivables by receivable type

The following table summarizes the amortized cost basis of financing receivables by receivable type as of December 31, 2020:

thousands	MUD Receivables (a)		SID Receivables		TIF Receivables		Net Investments in Lease Receivable		Notes Receivable		Total
Ending balance as of December 31, 2020	$	314,394	$	54,770	$	893	$	2,943	$	1,178	$	374,178

(a)Accrued interest of $15.7 million as of December 31, 2020, and $17.3 million as of December 31, 2019, are included within Municipal Utility District receivables on the Company’s Consolidated Balance Sheets.

Allowance for credit losses on financing receivables

The following table presents the activity in the allowance for credit losses for financing receivables by receivable type for the year ended December 31, 2020:

thousands	MUD Receivables		SID Receivables		TIF Receivables		Net Investments in Lease Receivable		Notes Receivable		Trade Accounts Receivable (a)
Beginning balance as of January 1, 2020	$	—	$	—	$	—	$	17	$	209	$	—
Current-period provision for expected credit losses	—		—		—		—		(52)		99
Write-offs	—		—		—		—		(1)		(59)
Ending balance as of December 31, 2020	$	—	$	—	$	—	$	17	$	156	$	40

(a)Trade accounts receivable are presented within accounts receivable, net on the consolidated balance sheet. Accounts receivable, net also includes receivables related to operating leases. Collectability and related allowance for amounts due under operating leases is assessed under the guidance of ASC 842 and ASC 450. Reserves related to operating lease receivables are not included in the above table.