Revision to Prior Year Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Policy charges and fee income	$ (39,490)	$ (32,885)	[1]
Cash flows from (used in) operating activities	(178,607)	61,866
CASH FLOWS FROM FINANCING ACTIVITIES:
Policyholders' account withdrawals	(1,653,848)	(1,777,827)	[1]
Other, net	(3,100)	(37,825)	[1]
Cash flows from (used in) financing activities	$ 640,548	343,812
As Previously Reported
CASH FLOWS FROM OPERATING ACTIVITIES:
Policy charges and fee income		(135,809)
Cash flows from (used in) operating activities		(41,058)
CASH FLOWS FROM FINANCING ACTIVITIES:
Policyholders' account withdrawals		(1,712,728)
Other, net		0
Cash flows from (used in) financing activities		446,736
Revision
CASH FLOWS FROM OPERATING ACTIVITIES:
Policy charges and fee income		102,924
Cash flows from (used in) operating activities		102,924
CASH FLOWS FROM FINANCING ACTIVITIES:
Policyholders' account withdrawals		(65,099)
Other, net		(37,825)
Cash flows from (used in) financing activities		$ (102,924)

[1] Prior period amounts have been revised to correct an error. See Note 11 for details.