Finance Receivables, Credit Quality Information - Changes in the allowance for the loan losses by product type (Details) - USD ($) $ in Thousands		1 Months Ended	11 Months Ended		12 Months Ended
	Dec. 12, 2018	Dec. 31, 2018	Dec. 12, 2018	Nov. 30, 2018	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2016
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]	Predecessor		Predecessor	Predecessor		Predecessor	Predecessor
Total Finance receivables at the end of the period		$ 1,598			$ 1,560
Total gross finance receivables for which accrual for third-party lender losses has been recorded					3,474
Subsidiary purchased loans					9,095
Recoveries of collection on purchased loans					1,996
Third party lender
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Balance at the beginning of the period		4,441	$ 4,818	$ 4,818	4,513	$ 3,099
Provision		947	24,258		16,926	32,666
Charge-offs		(875)	(24,635)		(18,869)	(30,947)
Balance at the end of the period	$ 4,441	4,513	4,441		2,570	4,818	$ 3,099
Debt sales			934		375	988
Total gross finance receivables for which accrual for third-party lender losses has been recorded		3,474			28,444
Consumer Borrower
Changes in the allowance for the loan losses by product type
Balance at the beginning of the period		16,379	16,327	16,327	3,474	16,219
Provision		1,979	67,827		69,479	97,569
Charge-offs		(1,038)	(103,627)		(97,067)	(148,335)
Recoveries		2,533	35,852		37,942	50,874
Balance at the end of the period	16,379	3,474	16,379		13,828	16,327	16,219
Total Finance receivables at the end of the period	$ 101,380	$ 89,808	$ 101,380		$ 98,330	$ 113,368
Allowance as a percentage of receivable	16.16%	3.87%	16.16%		14.06%	14.40%
Troubled debt restructuring
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Allowance for TDR's		$ 1	$ 41		$ 15	$ 80
Net carrying value of TDR's	$ 64	3	64		28	146
Credit service program (CSO Program) | Third party lender
Changes in the allowance for the loan losses by product type
Total gross finance receivables for which accrual for third-party lender losses has been recorded		34,144			12,096
Short-term consumer loans
Changes in the allowance for the loan losses by product type
Total Finance receivables at the end of the period		53,779			61,973
Short-term consumer loans | Third party lender
Changes in the allowance for the loan losses by product type
Balance at the beginning of the period		4,379	4,571	4,571	4,454	2,907
Provision		947	24,045		9,278	32,277
Charge-offs		(872)	(24,237)		(12,428)	(30,613)
Balance at the end of the period	4,379	4,454	$ 4,379		1,304	$ 4,571	2,907
Short-term consumer loans | Consumer Borrower
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Balance at the beginning of the period		2,818	$ 2,697	2,697	2,018	$ 2,223
Provision		1,180	38,012		38,987	46,240
Charge-offs		(1,038)	(69,716)		(72,550)	(91,072)
Recoveries		1,876	31,825		34,199	45,306
Balance at the end of the period	2,818	2,018	2,818		2,654	2,697	2,223
Total Finance receivables at the end of the period	$ 60,780	$ 53,779	$ 60,780		$ 61,973	$ 66,465
Allowance as a percentage of receivable	4.64%	3.75%	4.64%		4.28%	4.06%
Debt sales			$ 1,188		$ 1,238	$ 1,199
Short-term consumer loans | Ohio credit service program (CSO Program)
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor
Recoveries		$ 1,216	$ 29,912		9,702
Total gross finance receivables for which accrual for third-party lender losses has been recorded		30,490			0
Required purchases		2,082	$ 46,368		12,469
Short-term consumer loans | Texas credit service program (CSO Program)
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor
Recoveries		4,123	$ 270		5,644
Total gross finance receivables for which accrual for third-party lender losses has been recorded		3,351			4,953
Required purchases		485	11,293		15,334
Medium-term consumer loans
Changes in the allowance for the loan losses by product type
Balance at the beginning of the period					1,456
Provision					30,492
Charge-offs					(24,517)
Recoveries					3,743
Balance at the end of the period		1,456			11,174
Total Finance receivables at the end of the period		36,029			$ 36,357
Allowance as a percentage of receivable					30.73%
Medium-term consumer loans | Third party lender
Changes in the allowance for the loan losses by product type
Balance at the beginning of the period		62	247	247	$ 59	192
Provision			213		7,648	389
Charge-offs		(3)	(398)		(6,441)	(334)
Balance at the end of the period	$ 62	59	$ 62		1,266	$ 247	192
Medium-term consumer loans | Consumer Borrower
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Balance at the beginning of the period		13,561	$ 13,630	$ 13,630	1,456	$ 13,996
Provision		799	29,815		30,492	51,329
Charge-offs			(33,911)			(57,263)
Recoveries		657	4,027			5,568
Balance at the end of the period	13,561	1,456	13,561			13,630	$ 13,996
Total Finance receivables at the end of the period	$ 40,600	$ 36,029	$ 40,600			$ 46,903
Allowance as a percentage of receivable	33.40%	4.04%	33.40%			29.06%
Debt sales			$ 1,196		979	$ 1,555
Medium-term consumer loans | Troubled debt restructuring | Consumer Borrower
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Provision and write off		$ 3	$ 111		52	$ 256
Payment defaults for loans evaluated for impairment		1	$ 210		92	$ 432
Medium-term consumer loans | Ohio credit service program (CSO Program)
Changes in the allowance for the loan losses by product type
Total gross finance receivables for which accrual for third-party lender losses has been recorded		303			7,143
Check cashing | Consumer Borrower
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor			Predecessor
Provision		187	$ 5,013		5,227	$ 5,966
Installment Loans | Ohio credit service program (CSO Program)
Changes in the allowance for the loan losses by product type
Financial Designation, Predecessor and Successor [Fixed List]			Predecessor
Recoveries		19	$ 270		2,806
Total gross finance receivables for which accrual for third-party lender losses has been recorded		303			7,143
Required purchases		$ 17	$ 669		9,260
Debt buyer liability | Third party lender
Changes in the allowance for the loan losses by product type
Provision					10,573
Charge-offs					(7,099)
Balance at the end of the period					3,474
Total gross finance receivables for which accrual for third-party lender losses has been recorded					28,444
Total gross finance receivables for which accrual for third-party lender losses has been reserved					$ 3,474