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(5) Securitization Trust Debt (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Receivables Pledged at end of period | $ 1,954,617 |
Initial Principal | 6,271,209 |
Outstanding Principal | 1,771,953 | $ 1,814,320
Securitization Trust Debt [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Securitization trust debt, expected payment 2022 | 687,900 |
Securitization trust debt, expected payment 2023 | 621,200 |
Securitization trust debt, expected payment 2024 | 150,600 |
Securitization trust debt, expected payment 2025 | 167,000 |
Securitization trust debt, expected payment 2026 | 92,100 |
Securitization trust debt, expected payment 2027 | $ 41,200 |
CPS 2015-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2022 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 250,000 |
Outstanding Principal | $ 0 | 17,984
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2015-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | December 2022 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 300,000 |
Outstanding Principal | $ 0 | 28,529
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2016-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | March 2023 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 329,460 |
Outstanding Principal | $ 0 | 37,158
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2016-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2023 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 332,690 |
Outstanding Principal | $ 0 | 46,079
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2016-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2023 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 318,500 |
Outstanding Principal | $ 0 | 47,325
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2016-D [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | April 2024 |
Receivables Pledged at end of period | $ 0 |
Initial Principal | 206,325 |
Outstanding Principal | $ 0 | 36,455
Weighted Average Contractual Interest Rate | 0.00% |
CPS 2017-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | April 2024 |
Receivables Pledged at end of period | $ 21,381 |
Initial Principal | 206,320 |
Outstanding Principal | $ 17,644 | 40,619
Weighted Average Contractual Interest Rate | 7.07% |
CPS 2017-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | December 2023 |
Receivables Pledged at end of period | $ 27,922 |
Initial Principal | 225,170 |
Outstanding Principal | $ 12,491 | 39,016
Weighted Average Contractual Interest Rate | 5.75% |
CPS 2017-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2024 |
Receivables Pledged at end of period | $ 30,061 |
Initial Principal | 224,825 |
Outstanding Principal | $ 25,846 | 47,553
Weighted Average Contractual Interest Rate | 5.68% |
CPS 2017-D [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2024 |
Receivables Pledged at end of period | $ 30,994 |
Initial Principal | 196,300 |
Outstanding Principal | $ 26,744 | 49,297
Weighted Average Contractual Interest Rate | 4.95% |
CPS 2018-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | March 2025 |
Receivables Pledged at end of period | $ 34,363 |
Initial Principal | 190,000 |
Outstanding Principal | $ 29,518 | 53,549
Weighted Average Contractual Interest Rate | 4.68% |
CPS 2018-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | December 2024 |
Receivables Pledged at end of period | $ 42,054 |
Initial Principal | 201,823 |
Outstanding Principal | $ 36,092 | 66,955
Weighted Average Contractual Interest Rate | 5.10% |
CPS 2018-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2025 |
Receivables Pledged at end of period | $ 47,708 |
Initial Principal | 230,275 |
Outstanding Principal | $ 42,765 | 77,345
Weighted Average Contractual Interest Rate | 5.27% |
CPS 2018-D [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2025 |
Receivables Pledged at end of period | $ 58,204 |
Initial Principal | 233,730 |
Outstanding Principal | $ 49,634 | 88,228
Weighted Average Contractual Interest Rate | 5.12% |
CPS 2019-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | March 2026 |
Receivables Pledged at end of period | $ 72,750 |
Initial Principal | 254,400 |
Outstanding Principal | $ 62,667 | 114,373
Weighted Average Contractual Interest Rate | 4.90% |
CPS 2019-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2026 |
Receivables Pledged at end of period | $ 72,683 |
Initial Principal | 228,275 |
Outstanding Principal | $ 61,730 | 118,982
Weighted Average Contractual Interest Rate | 4.61% |
CPS 2019-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2026 |
Receivables Pledged at end of period | $ 85,381 |
Initial Principal | 243,513 |
Outstanding Principal | $ 75,065 | 142,080
Weighted Average Contractual Interest Rate | 3.76% |
CPS 2019-D [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | December 2026 |
Receivables Pledged at end of period | $ 109,469 |
Initial Principal | 274,313 |
Outstanding Principal | $ 98,625 | 181,485
Weighted Average Contractual Interest Rate | 3.20% |
CPS 2020-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | March 2027 |
Receivables Pledged at end of period | $ 104,000 |
Initial Principal | 260,000 |
Outstanding Principal | $ 99,485 | 184,944
Weighted Average Contractual Interest Rate | 3.32% |
CPS 2020-B [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2027 |
Receivables Pledged at end of period | $ 110,962 |
Initial Principal | 202,343 |
Outstanding Principal | $ 87,048 | 164,403
Weighted Average Contractual Interest Rate | 4.58% |
CPS 2020-C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | November 2027 |
Receivables Pledged at end of period | $ 150,173 |
Initial Principal | 252,200 |
Outstanding Principal | $ 138,899 | 231,961
Weighted Average Contractual Interest Rate | 2.35% |
CPS 2021-A [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | March 2028 |
Receivables Pledged at end of period | $ 162,217 |
Initial Principal | 230,545 |
Outstanding Principal | $ 147,516 | 0
Weighted Average Contractual Interest Rate | 0.97% |
CPS 2021-B |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | June 2028 |
Receivables Pledged at end of period | $ 189,319 |
Initial Principal | 240,000 |
Outstanding Principal | $ 179,856 | 0
Weighted Average Contractual Interest Rate | 1.24% |
C P S 2021 C [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | September 2028 |
Receivables Pledged at end of period | $ 264,525 |
Initial Principal | 291,000 |
Outstanding Principal | $ 250,003 | 0
Weighted Average Contractual Interest Rate | 1.11% |
C P S 2021 D [Member] |  |
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items] |  |
Final Scheduled Payment Date | December 2028 |
Receivables Pledged at end of period | $ 340,451 |
Initial Principal | 349,202 |
Outstanding Principal | $ 330,325 | $ 0
Weighted Average Contractual Interest Rate | 1.39% |

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