Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2020

Allowance For Credit Loss [Abstract]

Summary of Net Investment in Finance Leases and Container Leaseback Financing Receivable

The following table presents the net investment in finance leases and container leaseback financing receivable by internal credit rating category and year of origination as of December 31, 2020:

	Year Ended December 31, 2020		2019		2018		2017		2016		Prior		Total
Tier 1	$	571,226	$	111,206	$	35,580	$	7,221	$	—	$	36,625	$	761,858
Tier 2		40,657		37,176		21,164		53		5,153		3,505		107,708
Tier 3		2,624		7,145		1,132		—		42		784		11,727
Net investment in finance leases	$	614,507	$	155,527	$	57,876	$	7,274	$	5,195	$	40,914	$	881,293
Tier 1	$	113,383	$	213,386	$	—	$	—	$	—	$	—	$	326,769
Tier 2		—		37,523		—		—		—		—		37,523
Tier 3		—		—		—		—		—		—		—
Container leaseback financing receivable	$	113,383	$	250,909	$	—	$	—	$	—	$	—	$	364,292

Summary of Changes in Carrying Amount of Allowance for Credit Losses

The changes in the carrying amount of the allowance for credit losses during the year ended December 31, 2020 are as follows:

	Accounts Receivable			Net Investment in Finance Leases		Container Leaseback Financing Receivable		Total Allowance for Credit Losses
Balance as of December 31, 2019	$	6,299		$	—	$	—	$	6,299
Impact of adopting ASU 2016-13 on January 1, 2020		—			636		256		892
Additions charged to expense (recovery), net		(3,149	)		697		168		(2,284	)
Write-offs		(487	)		—		—		(487	)
Balance as of December 31, 2020	$	2,663		$	1,333	$	424	$	4,420