SEGMENT INFORMATION - SUCCESSOR COMPANY - Schedule of Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES
Premiums	$ 8,000	$ 19,000	$ 37,000	$ 61,000
Policy charges and fee income	97,000	365,000	1,232,000	1,944,000
Net investment income	99,000	255,000	490,000	579,000
Asset management and service fees	20,000	71,000	255,000	391,000
Other income		7,000
Total	481,000	(1,907,000)	7,489,000	(5,261,000)
TOTAL REVENUES	686,000	(1,190,000)	8,949,000	(2,225,000)
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities		(1,010,000)
Commission expense	35,000	65,000	1,573,000	798,000
General, administrative and other expenses	3,000	75,000	317,000	205,000
TOTAL BENEFITS AND EXPENSES	253,000	(870,000)	2,690,000	1,810,000
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES	433,000	(320,000)	6,259,000	(4,035,000)
Income tax expense (benefit)	77,000	(34,000)	1,294,000	(866,000)
NET INCOME (LOSS)	356,000	(286,000)	4,965,000	(3,169,000)
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities	0	140,000	0	0
Other comprehensive income	(118,000)	29,000	(362,000)	294,000
Other comprehensive loss, net of tax	(443,000)	111,000	(1,363,000)	1,104,000
COMPREHENSIVE INCOME (LOSS)	$ (87,000)	(175,000)	$ 3,602,000	$ (2,065,000)
Retained Business
REVENUES
Premiums		19,000
Policy charges and fee income		365,000
Net investment income		125,000
Asset management and service fees		71,000
Other income		5,000
Total		(861,000)
TOTAL REVENUES		(276,000)
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities		(96,000)
Commission expense		65,000
General, administrative and other expenses		75,000
TOTAL BENEFITS AND EXPENSES		44,000
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES		(320,000)
Income tax expense (benefit)		(34,000)
NET INCOME (LOSS)		(286,000)
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities		140,000
Other comprehensive income		29,000
Other comprehensive loss, net of tax		111,000
COMPREHENSIVE INCOME (LOSS)		(175,000)
Ceded Business
REVENUES
Premiums		0
Policy charges and fee income		0
Net investment income		130,000
Asset management and service fees		0
Other income		2,000
Total		(1,046,000)
TOTAL REVENUES		(914,000)
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities		(914,000)
Commission expense		0
General, administrative and other expenses		0
TOTAL BENEFITS AND EXPENSES		(914,000)
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES		0
Income tax expense (benefit)		0
NET INCOME (LOSS)		0
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities		0
Other comprehensive income		0
Other comprehensive loss, net of tax		0
COMPREHENSIVE INCOME (LOSS)		$ 0