SIGNIFICANT TRANSACTIONS - Total Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 01, 2019	Dec. 31, 2019
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020		$ 54,350
2021		51,746
2022		48,206
2023		46,519
2024		45,406
Expected Amortization Expense VOBA [Abstract]
2020		(19,741)
Individual Life Business
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 21,300
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020		1,463
2021		1,463
2022		1,463
2023		1,463
2024		1,463
Expected Amortization Expense VOBA [Abstract]
2021		(12,153)
2022		(5,090)
2023		1,143
2024		$ 6,184
Individual Life Business \| Distribution relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 15,000
Finite-lived intangible assets, useful life	18 years
Individual Life Business \| Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 6,300
Finite-lived intangible assets, useful life	10 years

Expected Amortization Expense of Valuation Of Business Acquisition (VOBA), Next Twelve Months

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Expected Amortization Expense VOBA [Abstract]

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Expected Amortization Expense of Valuation Of Business Acquisition (VOBA) Year Five

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Expected Amortization Expense of Valuation Of Business Acquisition (VOBA) Year Four

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Expected Amortization Expense of Valuation Of Business Acquisition (VOBA) Year Three

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Expected Amortization Expense of Valuation Of Business Acquisition (VOBA) Year Two

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Section 50
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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