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Securities Held-to-Maturity (Tables) | 6 Months Ended
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Jun. 30, 2021
Securities Held-to-Maturity |
Schedule of securities held-to-maturity | A summary of our securities held-to-maturity is as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Net Carrying | ​ | Unrealized | ​ | Estimated | ​ | Allowance for
​ |  | Face Value |  | Value |  | Gain/(Loss) |  | Fair Value |  | Credit Losses
June 30, 2021 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
APL certificates | ​ | $ | 101,868 | ​ | $ | 61,600 | ​ | $ | 6,368 | ​ | $ | 67,968 | ​ | $ | 1,568
B Piece bonds | ​ | ​ | 69,133 | ​ | ​ | 53,096 | ​ | ​ | 3,939 | ​ | ​ | 57,035 | ​ | ​ | 547
Total | ​ | $ | 171,001 | ​ | $ | 114,696 | ​ | $ | 10,307 | ​ | $ | 125,003 | ​ | $ | 2,115
December 31, 2020 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
APL certificates | ​ | $ | 63,627 | ​ | $ | 37,685 | ​ | $ | (2,105) | ​ | $ | 35,580 | ​ | $ | 1,023
B Piece bonds | ​ | ​ | 76,497 | ​ | ​ | 57,839 | ​ | ​ | 709 | ​ | ​ | 58,548 | ​ | ​ | 621
Total | ​ | $ | 140,124 | ​ | $ | 95,524 | ​ | $ | (1,396) | ​ | $ | 94,128 | ​ | $ | 1,644
Schedule of changes in the allowance for credit losses | A summary of the changes in the allowance for credit losses for our securities held-to-maturity is as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, 2021
​ | ​ | APL | ​ | B Piece | ​ |  | ​
​ |  | Certificates |  | Bonds |  | Total
Beginning balance | ​ | $ | 991 | ​ | $ | 606 | ​ | $ | 1,597
Provision for credit loss expense | ​ |  | 577 | ​ |  | (59) | ​ |  | 518
Ending balance | ​ | $ | 1,568 | ​ | $ | 547 | ​ | $ | 2,115
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2021
Beginning balance | ​ | $ | 1,023 | ​ | $ | 621 | ​ | $ | 1,644
Provision for credit loss expense | ​ |  | 545 | ​ |  | (74) | ​ |  | 471
Ending balance | ​ | $ | 1,568 | ​ | $ | 547 | ​ | $ | 2,115
​

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- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269825-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563 + Details
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