Collateralized Receivables and Transfers of Financial Assets, Schedule of collateralized loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Derecognition of collateralized recievables	$ (90,350)	$ 0
Collateralized Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	107,731	129,182
Principal payments and payoffs from our customers	(11,408)	(12,577)
Principal reduction from repossessed homes	(5,973)	(8,874)
Total activity	(107,731)	(21,451)
Ending balance	$ 0	$ 107,731