Statements of Equity - USD ($) $ in Thousands		Total	Common Stock	Additional  Paid-in Capital	Additional  Paid-in Capital Transferred To From Affiliates	Retained (Deficit) Earnings	Retained (Deficit) Earnings Cumulative Effect, Period of Adoption, Adjustment	[1]	Accumulated Other Comprehensive Income (Loss)	Parent	Parent Transferred To From Affiliates	Parent Cumulative Effect, Period of Adoption, Adjustment	[1]
Beginning balance at Dec. 31, 2019			$ 3,000	$ 5,143,000		$ (47,000)	$ (1,000)		$ 429,000	$ 5,528,000		$ (1,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Return of capital				(760,000)						(760,000)
Comprehensive income (loss):
Net income (loss)		$ (3,169,000)				(3,169,000)				(3,169,000)
Other comprehensive loss, net of tax		1,104,000							1,104,000	1,104,000
Total comprehensive loss										(2,065,000)
Ending balance at Dec. 31, 2020			3,000	4,383,000		(3,217,000)			1,533,000	2,702,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Return of capital				(3,813,000)						(3,813,000)
Dividend to parent						(831,000)				(831,000)
Assets purchased/transferred from/to affiliates					$ 22,000						$ 22,000
Comprehensive income (loss):
Net income (loss)		4,965,000				4,965,000				4,965,000
Other comprehensive loss, net of tax		(1,363,000)							(1,363,000)	(1,363,000)
Total comprehensive loss										3,602,000
Ending balance at Dec. 31, 2021			3,000	592,000		917,000			170,000	1,682,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Return of capital				(306,000)						(306,000)
Comprehensive income (loss):
Net income (loss)		356,000				356,000				356,000
Other comprehensive loss, net of tax		(443,000)							(443,000)	(443,000)
Total comprehensive loss										(87,000)
Ending balance at Mar. 31, 2022			3,000	286,000		1,273,000			(273,000)	1,289,000
Comprehensive income (loss):
Net income (loss)		(286,000)
Other comprehensive loss, net of tax		$ 111,000
Ending balance at Dec. 31, 2022			3,000	1,759,000		(286,000)			111,000	1,587,000
Beginning balance at Apr. 01, 2022	[2]		3,000	1,759,000		0			0	1,762,000
Comprehensive income (loss):
Net income (loss)						(286,000)				(286,000)
Other comprehensive loss, net of tax									111,000	111,000
Total comprehensive loss										(175,000)
Ending balance at Dec. 31, 2022			$ 3,000	$ 1,759,000		$ (286,000)			$ 111,000	$ 1,587,000

[1] Includes the impact from the adoption of Accounting Standards Update 2016-13. See Note 14 for further discussion.

[2] Additional paid-in capital, as of April 1, 2022, was adjusted for the removal of the preliminary bargain purchase gain. See “Business Combination” within Note 1 for further discussion.