MORTGAGE LOANS (Details 2) (Commercial mortgage loans, USD $)	2 Months Ended	3 Months Ended	1 Months Ended	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2015 item	Jan. 31, 2015	Sep. 30, 2014 loan	Mar. 31, 2014	Dec. 31, 2014
Mortgage loans
Mortgage loans having participation feature	$ 536,000,000	$ 536,000,000
Income recognized on participating mortgage loans	1,800,000
Nonperforming mortgage loans, foreclosed properties and restructured loans pursuant to pooling and servicing agreement	20,500,000	20,500,000
Nonperforming mortgage loans, foreclosed properties and restructured loans to invested assets (as a percent)	0.04%	0.04%
Assets accepted or agreed to be accepted on mortgage loans accounted for as troubled debt restructurings	10,600,000
Principal amount of loans accounted for as troubled debt restructurings satisfied by acceptance of assets	13,200,000
Number of loan categories		2
Loans not subject to a pooling and servicing agreement which are either nonperforming or restructured	20,500,000	20,500,000
Loans subject to a pooling and servicing agreement which are either nonperforming or restructured	0	0
Number of nonperforming loans which have been restructured		0
Change in the allowance for credit losses
Provision	1,171,000
Ending balance	1,171,000	1,171,000
Maximum
Mortgage loans
Loan-to-value ratio with participating interest (as a percent)	85.00%	85.00%
Predecessor
Mortgage loans
Mortgage loans having participation feature						553,600,000
Income recognized on participating mortgage loans			100,000		3,000,000
Assets accepted or agreed to be accepted on mortgage loans accounted for as troubled debt restructurings			11,300,000
Principal amount of loans accounted for as troubled debt restructurings satisfied by acceptance of assets			13,800,000
Number of mortgage loans permanently impaired				1
Principal amount of impaired loans accounted for as troubled debt restructurings				12,600,000
Impaired mortgage loans accounted for as troubled debt restructurings				7,300,000
Reduction in the entity's investment in mortgage loans, net of existing allowances for mortgage loan losses				5,300,000
Loans not subject to a pooling and servicing agreement which are either nonperforming or restructured			0
Change in the allowance for credit losses
Beginning balance		5,720,000	5,720,000		3,130,000
Charge offs			(861,000)		(675,000)
Recoveries			(2,359,000)		(2,600,000)
Provision					5,865,000
Ending balance			$ 2,500,000		$ 5,720,000