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Note 2 - Significant Accounting Policies and Consolidated Financial Statement Components - Summary of Allowance for Uncollectible Loans and Fees Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Balance at beginning of period | $ (57,200) | $ (125,000) | $ (186,300)
Provision for credit losses | (1,252) | (36,455) | (142,719)
Charge-offs | 2,600 | 121,200 | 230,200
Recoveries | (1,300) | (16,900) | (26,200)
Balance at end of period | (1,600) | (57,200) | (125,000)
Balance at end of period individually evaluated for impairment | 0 | (100) | (300)
Balance at end of period collectively evaluated for impairment | (1,600) | (57,100) | (124,700)
Loans, interest and fees receivable, gross | 105,267 | 470,293 | 667,600
Loans, interest and fees receivable individually evaluated for impairment | 0 | 400 | 2,300
Loans, interest and fees receivable collectively evaluated for impairment | 105,300 | 469,900 | 665,300
Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |  |
Balance at beginning of period | 55,800 |  |
Balance at end of period |  | 55,800 |
Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |  |
Balance at beginning of period | (200) |  |
Balance at end of period |  | (200) |
Credit Card Receivable [Member] |  |  |
Balance at beginning of period | (43,400) | (88,200) | (121,300)
Provision for credit losses | 0 | (34,900) | (112,100)
Charge-offs | 0 | 88,600 | 155,100
Recoveries | 0 | (8,900) | (9,900)
Balance at end of period | 0 | (43,400) | (88,200)
Balance at end of period individually evaluated for impairment | 0 | 0 | 0
Balance at end of period collectively evaluated for impairment | 0 | (43,400) | (88,200)
Loans, interest and fees receivable, gross | 0 | 259,500 | 364,200
Loans, interest and fees receivable individually evaluated for impairment | 0 | 0 | 0
Loans, interest and fees receivable collectively evaluated for impairment | 0 | 259,500 | 364,200
Credit Card Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |  |
Balance at beginning of period | 43,400 |  |
Balance at end of period |  | 43,400 |
Credit Card Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |  |
Balance at beginning of period | 0 |  |
Balance at end of period |  | 0 |
Automobile Loan [Member] |  |  |
Balance at beginning of period | (1,400) | (1,700) | (1,600)
Provision for credit losses | (1,300) | (200) | (2,000)
Charge-offs | 2,600 | 1,500 | 3,000
Recoveries | (1,300) | (1,000) | (1,100)
Balance at end of period | (1,600) | (1,400) | (1,700)
Balance at end of period individually evaluated for impairment | 0 | (100) | (300)
Balance at end of period collectively evaluated for impairment | (1,600) | (1,300) | (1,400)
Loans, interest and fees receivable, gross | 105,300 | 94,600 | 93,200
Loans, interest and fees receivable individually evaluated for impairment | 0 | 400 | 2,300
Loans, interest and fees receivable collectively evaluated for impairment | 105,300 | 94,200 | 90,900
Automobile Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |  |
Balance at beginning of period | 0 |  |
Balance at end of period |  | 0 |
Automobile Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |  |
Balance at beginning of period | (200) |  |
Balance at end of period |  | (200) |
Other Unsecured Lending Products [Member] |  |  |
Balance at beginning of period | (12,400) | (35,100) | (63,400)
Provision for credit losses | 0 | (1,400) | (28,600)
Charge-offs | 0 | 31,100 | 72,100
Recoveries | 0 | (7,000) | (15,200)
Balance at end of period | 0 | (12,400) | (35,100)
Balance at end of period individually evaluated for impairment | 0 | 0 | 0
Balance at end of period collectively evaluated for impairment | 0 | (12,400) | (35,100)
Loans, interest and fees receivable, gross | 0 | 116,200 | 210,200
Loans, interest and fees receivable individually evaluated for impairment | 0 | 0 | 0
Loans, interest and fees receivable collectively evaluated for impairment | 0 | 116,200 | $ 210,200
Other Unsecured Lending Products [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |  |
Balance at beginning of period | 12,400 |  |
Balance at end of period |  | 12,400 |
Other Unsecured Lending Products [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |  |
Balance at beginning of period | $ 0 |  |
Balance at end of period |  | $ 0 |

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