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Significant Accounting Policies and Consolidated Financial Statement Components Schedule of Aging of delinquent loans and fees receivable, gross (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Threshold period past due for Non-Accrual of Finance Receivable | 90 days |
Weighted Average Remaining Accretion Period of Deferred Revenue | 11 months | 11 months
Delinquent loans and fees receivable, gross | $ 53,600 | $ 38,400
Current loans and fees receivable, gross | 340,300 | 252,300
Loans and fees receivable, gross | 393,900 | 290,700
Balance of loans 90 or more days past due and still accruing interest and fees | $ 1,600 | $ 1,500
Effective Income Tax Rate Reconciliation, Percent | 13.50% | 48.70%
(Loss) income before income taxes | $ (47,250) | $ (12,356)
Unrecognized Tax Benefits, Income Tax Penalties Expense | 500 | 400
Income tax settlement amount with taxing authority | 7,400 |
Income Tax Examination, Interest Accrued | $ 4,100 |
Threshold Period Following Bankruptcy Notice for Write-off of Finance Receivable | 30 days |
Credit Card Receivable [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Threshold Period Past Due for Write-off of Financing Receivable | 180 days |
Delinquent loans and fees receivable, gross | $ 11,400 | 800
Current loans and fees receivable, gross | 75,800 | 10,200
Loans and fees receivable, gross | 87,200 | 11,000
Balance of loans 90 or more days past due and still accruing interest and fees | $ 0 | 0
Automobile Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Threshold Period Past Due for Write-off of Financing Receivable | 180 days |
Delinquent loans and fees receivable, gross | $ 10,400 | 11,300
Current loans and fees receivable, gross | 67,400 | 65,800
Loans and fees receivable, gross | 77,800 | 77,100
Balance of loans 90 or more days past due and still accruing interest and fees | $ 1,600 | 1,500
Other Unsecured Lending Products [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Threshold Period Past Due for Write-off of Financing Receivable | 120 days |
Delinquent loans and fees receivable, gross | $ 31,800 | 26,300
Current loans and fees receivable, gross | 197,100 | 176,300
Loans and fees receivable, gross | 228,900 | 202,600
Balance of loans 90 or more days past due and still accruing interest and fees | 0 | 0
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 18,600 | 15,400
Financing Receivables, 30 to 59 Days Past Due [Member] | Credit Card Receivable [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 3,200 | 200
Financing Receivables, 30 to 59 Days Past Due [Member] | Automobile Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 6,400 | 7,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Other Unsecured Lending Products [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 9,000 | 8,200
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 12,500 | 9,300
Financing Receivables, 60 to 89 Days Past Due [Member] | Credit Card Receivable [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 3,300 | 200
Financing Receivables, 60 to 89 Days Past Due [Member] | Automobile Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 2,100 | 2,400
Financing Receivables, 60 to 89 Days Past Due [Member] | Other Unsecured Lending Products [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 7,100 | 6,700
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 22,500 | 13,700
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Credit Card Receivable [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 4,900 | 400
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Automobile Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | 1,900 | 1,900
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other Unsecured Lending Products [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Delinquent loans and fees receivable, gross | $ 15,700 | $ 11,400

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