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Lease Arrangements | 12 Months Ended
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Dec. 31, 2018
Leases [Abstract] |
Lease Arrangements | Note 9 – Lease Arrangements We are the lessor in sales-type lease arrangements for network equipment, which have terms of 18 months to five years. The net investment in sales-type leases consists of lease receivables less unearned income. Collectability of sales-type leases is evaluated periodically at an individual customer level. At December 31, 2018 and 2017, we had no allowance for credit losses for our net investment in sales-type leases. As of December 31, 2018 and 2017, the components of the net investment in sales-type leases were as follows:
(In thousands) |  | 2018 |  |  | 2017 |
Current minimum lease payments receivable (included in other receivables) |  | $ | 11,339 |  |  | $ | 11,325 |
Non-current minimum lease payments receivable (included in other assets) |  |  | 1,670 |  |  |  | 2,913 |
Total minimum lease payments receivable |  |  | 13,009 |  |  |  | 14,238 |
Less: Current unearned revenue |  |  | 631 |  |  |  | 707 |
Less: Non-current unearned revenue |  |  | 473 |  |  |  | 787 |
Net investment in sales-type leases |  | $ | 11,905 |  |  | $ | 12,744 |
Future minimum lease payments to be received from sales-type leases as of December 31, 2018 are as follows:
(In thousands) |  | Amount (1) |
2019 |  | $ | 11,339 |
2020 |  |  | 990 |
2021 |  |  | 431 |
2022 |  |  | 189 |
2023 |  |  | 60 |
Total |  | $ | 13,009 |
| (1) | $9.4 million of these future minimum lease payments relate to one of our customers who filed for Chapter 11 bankruptcy in February 2019. Therefore, there is a potential risk of uncollectibility related to any outstanding balance. See Note 18 of Notes to Consolidated Financial Statements for additional information.

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- Definition The entire disclosure of lessor's sales-type leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=77888252 + Details
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