Supplemental Financial Information

6 Months Ended

Jun. 30, 2020

Supplemental Financial Information [Abstract]

6. Supplemental Financial Information

Accounts Receivable

Accounts receivable, net of allowance for expected credit losses related to customer contracts, excluding Dry Leasing contracts, was $189.5 million as of June 30, 2020 and $247.5 million as of December 31, 2019.

Allowance for expected credit losses, included within Accounts receivable, is as follows:

Balance as of December 31, 2019	$	1,822
Bad debt recovery		(6	)
Amounts written off, net of recoveries		(930	)
Balance as of June 30, 2020	$	886

Accrued Liabilities

Accrued liabilities consisted of the following as of:

	June 30, 2020		December 31, 2019
Maintenance	$	161,975	$	136,315
Deferred grant income		132,877		-
Customer maintenance reserves		96,131		110,355
Salaries, wages and benefits		88,180		75,719
Deferred revenue		38,437		26,357
Aircraft fuel		34,726		28,821
Other		100,927		104,158
Accrued liabilities	$	653,253	$	481,725

Revenue Contract Liability

Deferred revenue for customer contracts, excluding Dry Leasing contracts, represents amounts collected from, or invoiced to, customers in advance of revenue recognition. The balance of Deferred revenue will increase or decrease based on the timing of invoices and recognition of revenue.

Significant changes in our Revenue contract liability balances during the six months ended June 30, 2020 were as follows:


	Deferred Revenue
Balance as of December 31, 2019	$	19,234
Revenue recognized		(95,027	)
Amounts collected or invoiced		108,556
Balance as of June 30, 2020	$	32,763

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total shown in the consolidated statements of cash flows:

	June 30, 2020		December 31, 2019
Cash and cash equivalents	$	726,402	$	103,029
Restricted cash		12,776		10,401
Total Cash, cash equivalents and restricted cash shown in Consolidated Statements of Cash Flows	$	739,178	$	113,430