ALLOWANCE FOR CREDIT LOSSES

6 Months Ended

Dec. 31, 2020

In accordance with Topic 326, we recognize expected credit losses for accounts receivable and contract assets based on lifetime expected losses. We recognize a loss allowance using a collective assessment for accounts receivable, including contract assets, with similar risk characteristics based on historical credit loss experience, adjusted for forward-looking factors specific to the debtors and economic environment. We continue to maintain an allowance for 100% of all accounts deemed to be uncollectible.

Customer creditworthiness is evaluated prior to order fulfillment and based on evaluations, we adjust our credit limit to the respective customer. In addition to these evaluations, we conduct on-going credit evaluations of our customers' payment history and current creditworthiness. To date, the actual losses have been within our expectations.

The following illustrates the activity in our allowance for credit losses on accounts receivable:


Balance as of June 30, 2020	$	20,906
Adoption of Topic 326 - cumulative effect	3,025
Credit loss expense	2,928
Write-off /adjustments	(4,014)
Balance as of December 31, 2020	$	22,845

Included in accounts receivable are unbilled receivables in the amount of $58.3 million as of December 31, 2020 (June 30, 2020—$55.2 million).

As of December 31, 2020, we have an allowance for credit losses of $0.2 million for contract assets, as a result of the adoption of Topic 326. For additional information on contract assets please see note 3 "Revenues".