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Reverse Mortgage Interests, Net (Tables) | 12 Months Ended
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Dec. 31, 2018
Reverse Mortgage Interest [Abstract] |
Summary of Reverse Mortgage Interests | The activity of the reserves for reverse mortgage interests is set forth below.
| Successor |  |  | Predecessor
Reserves for reverse mortgage interests | For the Period August 1 - December 31, 2018 |  |  | For the Period January 1 - July 31, 2018 |  | Year ended December 31, 2017
Balance - beginning of period | $ | — |  |  |  | $ | 115 |  |  | $ | 131 |
Provisions | 13 |  |  |  | 32 |  |  | 76 |
Write-offs | — |  |  |  | (18 | ) |  | (92 | )
Balance - end of period | $ | 13 |  |  |  | $ | 129 |  |  | $ | 115 |
Unsecuritized interests in reverse mortgages consists of the following:
| Successor |  |  | Predecessor
| December 31, 2018 |  |  | December 31, 2017
Repurchased HECM loans (exceed 98% MCA) | $ | 949 |  |  |  | $ | 1,751 |
HECM related receivables | 300 |  |  |  | 311 |
Funded borrower draws not yet securitized | 76 |  |  |  | 82 |
REO-related receivables | 16 |  |  |  | 25 |
Purchase discount | (122 | ) |  |  | (89 | )
Total unsecuritized interests | $ | 1,219 |  |  |  | $ | 2,080 |
Reverse mortgage interests, net consists of the following:
| Successor |  |  | Predecessor
| December 31, 2018 |  |  | December 31, 2017
Participating interests in HECM mortgage-backed securities, net of $58 and $0 premium, respectively | $ | 5,664 |  |  |  | $ | 7,107 |
Other interests securitized, net of $100 and $0 discount, respectively | 1,064 |  |  |  | 912 |
Unsecuritized interests, net of $122 and $89 discount, respectively | 1,219 |  |  |  | 2,080 |
Reserves | (13 | ) |  |  | (115 | )
Total reverse mortgage interests, net | $ | 7,934 |  |  |  | $ | 9,984 |
The following table sets forth the activities of the purchase premiums and discounts for reverse mortgage interests.
| Successor
| For the Period August 1 - December 31, 2018
Purchase premiums and discounts for reverse mortgage interests | Premium for Participating Interests in HMBS |  | Discount for Other Interest Securitized |  | Discount for Unsecuritized Interests
Balance - beginning of period | $ | 58 |  |  | $ | (117 | ) |  | $ | (173 | )
Additions | — |  |  | — |  |  | — |
Utilization of purchase discounts | — |  |  | — |  |  | 43 |
Accretion/(Amortization) | — |  |  | 17 |  |  | 8 |
Balance - end of period | $ | 58 |  |  | $ | (100 | ) |  | $ | (122 | )
In connection with previous reverse mortgage portfolio acquisitions, the Predecessor recorded a purchase discount within unsecuritized interests. The following table sets forth the activities of the purchase discounts for reverse mortgage interests.
| Predecessor
Purchase discounts for reverse mortgage interests | For the Period January 1 - July 31, 2018 |  | Year ended December 31, 2017
Balance - beginning of period | $ | (89 | ) |  | $ | (43 | )
Additions | (7 | ) |  | (75 | )
Accretion | 14 |  |  | 29 |
Balance - end of period | $ | (82 | ) |  | $ | (89 | )

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- Definition Reverse Mortgage Interest [Abstract] + References No definition available. + Details
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- Definition Reverse Mortgage Interest [Table Text Block] + References No definition available. + Details
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