The Company is the lessor for its residential and non-residential leases and these leases will continue to be accounted for as operating leases under the standard as described in Note 2.

For the nine months ended September 30, 2020, approximately 98% of the Company’s total lease revenue is generated from residential apartment leases that are generally twelve months or less in length. The residential apartment leases may include lease income related to such items as utility recoveries, parking, storage and pet rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same. The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis. Residential leases are renewable upon consent of both parties on an annual or monthly basis.

For the nine months ended September 30, 2020, approximately 2% of the Company’s total lease revenue is generated by non-residential leases that are generally for terms ranging between five to ten years. The non-residential leases generally consist of ground floor retail spaces and master-leased parking garages that serve as additional amenities for our residents. The non-residential leases may include lease income related to such items as utility recoveries, parking rent and storage rent that the Company treats as a single lease component because the amenities cannot be leased on their own and the timing and pattern of revenue recognition are the same.

The collection of lease payments at lease commencement is probable and therefore the Company subsequently recognizes lease income over the lease term on a straight-line basis. Non-residential leases are renewable with market-based renewal options.

The following table presents the lease income types relating to lease payments for residential and non-residential leases along with the total other rental income for the nine months ended September 30, 2020 and 2019 (amounts in thousands):

	Nine Months Ended September 30, 2020						Nine Months Ended September 30, 2019
Income Type	Residential Leases		Non-Residential Leases		Total		Residential Leases		Non-Residential Leases		Total
Residential and non-residential rent	$	1,783,298	$	36,263	$	1,819,561	$	1,801,749	$	54,616	$	1,856,365
Utility recoveries (RUBS income) (1)		52,538		509		53,047		50,290		650		50,940
Parking rent		29,052		324		29,376		27,874		259		28,133
Storage rent		2,814		60		2,874		2,796		51		2,847
Pet rent		8,583		—		8,583		8,714		—		8,714
Total lease revenue	$	1,876,285	$	37,156		1,913,441	$	1,891,423	$	55,576		1,946,999
Total other rental income (2)						44,829						69,797
Rental income					$	1,958,270					$	2,016,796

The following table presents the lease income types relating to lease payments for residential and non-residential leases along with the total other rental income for the quarters ended September 30, 2020 and 2019 (amounts in thousands):

	Quarter Ended September 30, 2020						Quarter Ended September 30, 2019
Income Type	Residential Leases		Non-Residential Leases		Total		Residential Leases		Non-Residential Leases		Total
Residential and non-residential rent	$	576,192	$	6,042	$	582,234	$	611,020	$	18,453	$	629,473
Utility recoveries (RUBS income) (1)		17,306		134		17,440		16,987		238		17,225
Parking rent		9,592		101		9,693		9,405		100		9,505
Storage rent		901		20		921		940		19		959
Pet rent		2,843		—		2,843		2,916		—		2,916
Total lease revenue	$	606,834	$	6,297		613,131	$	641,268	$	18,810		660,078
Total other rental income (2)						9,302						25,042
Rental income					$	622,433					$	685,120

The economic impact of the pandemic on a subset of our residents and tenants has led to elevated levels of bad debt. We continue to work with our residents and tenants on payment plans and collections and our bad debt allowance policies remain consistent.

The following table presents residential and non-residential accounts receivable and straight-line receivable balances for the Company’s properties as of September 30, 2020 and December 31, 2019 (amounts in thousands):

	Residential							Non-Residential
Balance Sheet (Other assets):	September 30, 2020				December 31, 2019			September 30, 2020			December 31, 2019
Resident/tenant accounts receivable balances	$	24,298			$	4,040		$	7,839		$	1,766
Allowance for doubtful accounts		(16,286	)			(1,190	)		(6,595	)		(1,412	)
Net receivable balances	$	8,012		(1)	$	2,850		$	1,244		$	354

Straight-line receivable balances	$	11,618			$	1,841		$	13,816		$	26,450

The following table presents residential bad debt for the Company’s properties for the nine months ended September 30, 2020 and 2019 (amounts in thousands):

Due to the impact of COVID-19 and the resulting economic impact on our non-residential tenants, we recognized a non-cash write-off of non-residential straight-line lease receivables of $12.9 million during the nine months ended September 30, 2020. In addition, we also reduced rental revenues by $5.6 million during the nine months ended September 30, 2020 as a result of rent payment deferrals/abatements granted to our non-residential tenants.