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Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2017-12-31","val":16265000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2017-12-31","val":16265000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2017Q4I"},{"end":"2018-09-30","val":34621000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12","frame":"CY2018Q3I"},{"end":"2018-12-31","val":16207000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2018-12-31","val":16207000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"end":"2018-12-31","val":16207000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2018-12-31","val":16207000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"end":"2018-12-31","val":16207000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"end":"2018-12-31","val":16207000,"accn":"0001558370-21-003787","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-31","frame":"CY2018Q4I"},{"end":"2019-03-31","val":34701000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11","frame":"CY2019Q1I"},{"end":"2019-06-30","val":17062000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10","frame":"CY2019Q2I"},{"end":"2019-09-30","val":29277000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"end":"2019-09-30","val":29277000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09","frame":"CY2019Q3I"},{"end":"2019-12-31","val":32427000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"end":"2019-12-31","val":32427000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2019-12-31","val":32427000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"end":"2019-12-31","val":32427000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"end":"2019-12-31","val":32427000,"accn":"0001558370-21-003787","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-31"},{"end":"2019-12-31","val":32427000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2019Q4I"},{"end":"2020-03-31","val":52226000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2020-03-31","val":52226000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2020Q1I"},{"end":"2020-06-30","val":74414000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10","frame":"CY2020Q2I"},{"end":"2020-09-30","val":66194000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09","frame":"CY2020Q3I"},{"end":"2020-12-31","val":50513000,"accn":"0001558370-21-003787","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-31"},{"end":"2020-12-31","val":50513000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2020Q4I"},{"end":"2021-03-31","val":89310000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2021Q1I"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect","description":"Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"start":"2018-01-01","end":"2018-09-30","val":18356000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2018-01-01","end":"2018-12-31","val":-58000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":18494000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":855000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2019-01-01","end":"2019-09-30","val":13070000,"accn":"0001104659-19-062748","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-12"},{"start":"2019-01-01","end":"2019-09-30","val":13070000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2019-01-01","end":"2019-12-31","val":16220000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16"},{"start":"2019-01-01","end":"2019-12-31","val":16220000,"accn":"0001558370-21-003787","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-31","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":19799000,"accn":"0001558370-20-006194","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"start":"2020-01-01","end":"2020-03-31","val":19799000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":41987000,"accn":"0001558370-20-010113","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10"},{"start":"2020-01-01","end":"2020-09-30","val":33767000,"accn":"0001558370-20-013300","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-09"},{"start":"2020-01-01","end":"2020-12-31","val":18086000,"accn":"0001558370-21-003787","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-31","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":38797000,"accn":"0001558370-21-007194","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-14","frame":"CY2021Q1"}]}},"CashFDICInsuredAmount":{"label":"Cash, FDIC Insured Amount","description":"The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.","units":{"USD":[{"end":"2019-12-31","val":250000,"accn":"0001104659-20-033709","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-16","frame":"CY2019Q4I"}]}},"CashReserveDepositRequiredAndMade":{"label":"Cash Reserve Deposit Required and Made","description":"Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.","units":{"USD":[{"end":"2011-09-30","val":1800000,"accn":"0001047469-12-011340","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-20","frame":"CY2011Q3I"},{"end":"2012-09-30","val":1800000,"accn":"0001104659-13-091099","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-19","frame":"CY2012Q3I"},{"end":"2012-09-30","val":1800000,"accn":"0001047469-12-011340","fy":2012,"fp":"FY","form":"10-K","filed":"2012-12-20"},{"end":"2013-09-30","val":1800000,"accn":"0001104659-13-091099","fy":2013,"fp":"FY","form":"10-K","filed":"2013-12-19","frame":"CY2013Q3I"}]}},"CertainLoansAcquiredInTransferAccretableYield":{"label":"Certain Loans Acquired in Transfer, Accretable Yield","description":"The aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.","units":{"USD":[{"end":"2017-09-30","val":0,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2018Q4I"}]}},"CertainLoansAcquiredInTransferNonaccretableDifference":{"label":"Certain Loans Acquired in Transfer, Nonaccretable Difference","description":"The amount of the loan's contractually required payments receivable in excess of the amount of its cash flows expected to be collected. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.","units":{"USD":[{"end":"2017-06-30","val":2467000,"accn":"0001571049-17-007472","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2467000,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2467000,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2467000,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2467000,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2467000,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2467000,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2018Q4I"}]}},"CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue":{"label":"Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value","description":"Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.","units":{"USD":[{"end":"2017-09-30","val":0,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2018Q4I"}]}},"CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition":{"label":"Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition","description":"Amount of cash flows expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.","units":{"USD":[{"end":"2017-09-30","val":0,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2018Q4I"}]}},"CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCarryingAmountNet":{"label":"Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net","description":"The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.","units":{"USD":[{"end":"2017-06-30","val":0,"accn":"0001571049-17-007472","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02"},{"end":"2017-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance":{"label":"Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance","description":"The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.","units":{"USD":[{"end":"2017-06-30","val":0,"accn":"0001571049-17-007472","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-08-14","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001144204-17-058843","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-14","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0001144204-18-018509","fy":2017,"fp":"FY","form":"10-K","filed":"2018-04-02"},{"end":"2017-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0001144204-18-026929","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0001144204-18-043216","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":0,"accn":"0001144204-18-058693","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0001144204-19-014657","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-18","frame":"CY2018Q4I"}]}},"CertificatesOfDepositAtCarryingValue":{"label":"Certificates of Deposit, at Carrying Value","description":"A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three 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s 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