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Receivables | 9 Months Ended
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Sep. 30, 2019
Receivables [Line Items] |
Receivables | RECEIVABLES Sales of Accounts Receivable - IPL maintains a Receivables Purchase and Sale Agreement (Receivables Agreement) whereby it may sell its customer accounts receivables, unbilled revenues and certain other accounts receivables to a third party through wholly-owned and consolidated special purpose entities. The transfers of receivables meet the criteria for sale accounting established by the transfer of financial assets accounting rules. As of September 30, 2019, IPL had $109 million of available capacity under its sales of accounts receivable program. IPL’s maximum and average outstanding cash proceeds (based on daily outstanding balances) related to the sales of accounts receivable program for the three and nine months ended September 30 were as follows (in millions):
| Three Months |  | Nine Months
| 2019 |  | 2018 |  | 2019 |  | 2018
Maximum outstanding aggregate cash proceeds |  | $103.0 |  |  |  | $110.0 |  |  |  | $108.0 |  |  |  | $116.0 |
Average outstanding aggregate cash proceeds | 45.4 |  |  | 36.4 |  |  | 42.9 |  |  | 49.8 |
The attributes of IPL’s receivables sold under the Receivables Agreement were as follows (in millions):
| September 30, 2019 |  | December 31, 2018
Customer accounts receivable |  | $154.2 |  |  |  | $140.1 |
Unbilled utility revenues | 92.1 |  |  | 97.1 |
Other receivables | 0.4 |  |  | 0.1 |
Receivables sold to third party | 246.7 |  |  | 237.3 |
Less: cash proceeds | 1.0 |  |  | 108.0 |
Deferred proceeds | 245.7 |  |  | 129.3 |
Less: allowance for doubtful accounts | 8.7 |  |  | 9.9 |
Fair value of deferred proceeds |  | $237.0 |  |  |  | $119.4 |
As of September 30, 2019, outstanding receivables past due under the Receivables Agreement were $26.6 million. Additional attributes of IPL’s receivables sold under the Receivables Agreement for the three and nine months ended September 30 were as follows (in millions):
| Three Months |  | Nine Months
| 2019 |  | 2018 |  | 2019 |  | 2018
Collections |  | $592.2 |  |  |  | $549.5 |  |  |  | $1,635.7 |  |  |  | $1,550.2 |
Write-offs, net of recoveries | 3.2 |  |  | 4.9 |  |  | 11.3 |  |  | 12.9 |
IPL [Member] |
Receivables [Line Items] |
Receivables | RECEIVABLES Sales of Accounts Receivable - IPL maintains a Receivables Purchase and Sale Agreement (Receivables Agreement) whereby it may sell its customer accounts receivables, unbilled revenues and certain other accounts receivables to a third party through wholly-owned and consolidated special purpose entities. The transfers of receivables meet the criteria for sale accounting established by the transfer of financial assets accounting rules. As of September 30, 2019, IPL had $109 million of available capacity under its sales of accounts receivable program. IPL’s maximum and average outstanding cash proceeds (based on daily outstanding balances) related to the sales of accounts receivable program for the three and nine months ended September 30 were as follows (in millions):
| Three Months |  | Nine Months
| 2019 |  | 2018 |  | 2019 |  | 2018
Maximum outstanding aggregate cash proceeds |  | $103.0 |  |  |  | $110.0 |  |  |  | $108.0 |  |  |  | $116.0 |
Average outstanding aggregate cash proceeds | 45.4 |  |  | 36.4 |  |  | 42.9 |  |  | 49.8 |
The attributes of IPL’s receivables sold under the Receivables Agreement were as follows (in millions):
| September 30, 2019 |  | December 31, 2018
Customer accounts receivable |  | $154.2 |  |  |  | $140.1 |
Unbilled utility revenues | 92.1 |  |  | 97.1 |
Other receivables | 0.4 |  |  | 0.1 |
Receivables sold to third party | 246.7 |  |  | 237.3 |
Less: cash proceeds | 1.0 |  |  | 108.0 |
Deferred proceeds | 245.7 |  |  | 129.3 |
Less: allowance for doubtful accounts | 8.7 |  |  | 9.9 |
Fair value of deferred proceeds |  | $237.0 |  |  |  | $119.4 |
As of September 30, 2019, outstanding receivables past due under the Receivables Agreement were $26.6 million. Additional attributes of IPL’s receivables sold under the Receivables Agreement for the three and nine months ended September 30 were as follows (in millions):
| Three Months |  | Nine Months
| 2019 |  | 2018 |  | 2019 |  | 2018
Collections |  | $592.2 |  |  |  | $549.5 |  |  |  | $1,635.7 |  |  |  | $1,550.2 |
Write-offs, net of recoveries | 3.2 |  |  | 4.9 |  |  | 11.3 |  |  | 12.9 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -URI http://asc.fasb.org/topic&trid=2197590 + Details
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